The Lost Duke of Wyndham Chapter Three

Five miles away, in a small posting inn, a man sat in his room, alone, with a bottle of expensive French brandy, an empty glass, a very small case of clothing, and a woman's ring. His name was Jack Audley; formerly Captain John Audley of His Majesty's army; formerly Jack Audley of Butlersbridge, County Cavan, Ireland; formerly Jack Cavendish-Audley of the same place; and formerly – as formerly as one could get, as it was at the time of his christening – John Augustus Cavendish. The miniature had meant nothing to him. He could barely see it in the night, and he'd yet to find a portraitist who could capture a man's essence on a miniature painting, anyway. But the ring†¦ With an unsteady hand, he poured himself another drink. He hadn't looked closely at the ring when he took it from the old lady's hands. But now, in the privacy of his rented room, he'd looked. And what he'd seen had shaken him to his bones. He'd seen that ring before. On his own finger. His was a masculine version, but the design was identical. A twisted flower, a tiny swirled D. He'd never known what it meant, as he'd been told that his father's name was John Augustus Cavendish, no capital D's to be found anywhere. He still didn't know what the D stood for, but he knew that the old lady did. And no matter how many times he tried to convince himself that this was just a coincidence, he knew that this evening, on a deserted Lincolnshire road, he'd met his grandmother. Good Lord. He looked down at the ring again. He'd propped it up on the table, its face winking up at him in the candlelight. Abruptly, he twisted his own ring and yanked it off. He couldn't remember the last time his finger had been bare. His aunt had always insisted that he keep it close; it was the only keepsake they had of his father. His mother, they told him, had been clutching it in her shivering fingers when she was pulled from the frigid waters of the Irish Sea. Slowly, Jack held the ring out, carefully setting it down next to its sister. His lips flattened slightly as he regarded the pair. What had he been thinking? That when he got the two side by side he'd see that they were actually quite different? He'd known little of his father. His name, of course, and that he was the younger son of a well-to-do English family. His aunt had met him but twice; her impression had been that he was somewhat estranged from his relations. He spoke of them only laughingly, in that manner people used when they did not wish to say anything of substance. He hadn't much money, or so his aunt assumed. His clothes were fine, but well-worn, and as far as anyone could tell, he'd been wandering the Irish countryside for months. He'd said he had come to witness the wedding of a school friend and liked it so much that he stayed. His aunt saw no reason to doubt this. In the end, all Jack knew was this: John Augustus Cavendish was a well-born English gentleman who'd traveled to Ireland, fallen in love with Louise Galbraith, married her, and then died when the ship carrying them to England had sunk off the coast of Ireland. Louise had washed ashore, her body bruised and shivering, but alive. It was over a month before anyone realized she was pregnant. But she was weak, and she was devastated by grief, and her sister – the woman who had raised Jack as her own – said it was more of a surprise that Louise survived the pregnancy than it was that she finally succumbed at his birth. And that fairly well summed up Jack's knowledge of his paternal heritage. He thought about his parents from time to time, wondering who they'd been and which had gifted him with his ready smile, but in truth, he'd never yearned for anything more. At the age of two days he'd been given to William and Mary Audley, and if they had ever loved their own children more, they never allowed him to know it. Jack had grown up the de facto son of a country squire, with two brothers, a sister, and twenty acres of rolling pasture, perfect for riding, running, jumping – anything a young boy could fancy. It had been a marvelous childhood. Damn near perfect. If he was not leading the life he'd anticipated, if he sometimes lay in bed and wondered what the hell he was doing robbing coaches in the dead of night – at least he knew that the road to this point had been paved with his own choices, his own flaws. And most of the time, he was happy. He was reasonably cheerful by nature, and really, one could do worse than playing Robin Hood along rural British roads. At least he felt as if he had some sort of purpose. After he and the army had parted ways, he'd not known what to do with himself. He was not willing to return to his life as a soldier, and yet, what else was he qualified to do? He had two skills in life, it seemed: He could sit a horse as if he'd been born in the position, and he could turn a conversation with enough wit and flair to charm even the crustiest of individuals. Put together, robbing coaches had seemed the most logical choice. Jack had made his first theft in Liverpool, when he'd seen a young toff kick a one-handed former soldier who'd had the temerity to beg for a penny. Somewhat buoyed by a rather potent pint of ale, Jack had followed the fellow into a dark corner, pointed a gun a his heart, and walked off with his wallet. The contents of which he had then dispersed among the beggars on Queens Way, most of whom had fought for – and then been forgotten by – the good people of England. Well, ninety per cent of the contents had been dispersed. Jack had to eat, too. After that, it had been an easy step to move to highway robbery. It was so much more elegant than the life of footpad. And it could not be denied that it was much easier to get away on horseback. And so that was his life. It was what he did. If he'd gone back to Ireland, he would probably be married by now, sleeping with one woman, in one bed, in one house. His life would be County Cavan, and his world a far, far smaller place than it was today. His was a roaming soul. That was why he did not go back to Ireland. He splashed a bit more brandy into his glass. There were a hundred reasons why he did not go back to Ireland. Fifty, at least. He took a sip, then another, then drank deeply until he was too sotted to continue his dishonesty. There was one reason he did not go back to Ireland. One reason, and four people he did not think he could face. Rising from his seat, he walked to the window and looked out. There wasn't much to see – a small barn for horses, a thickly leaved tree across the road. The moonlight had turned the air translucent – shimmery and thick, as if a man could step outside and lose himself. He smiled grimly. It was tempting. It was always tempting. He knew where Belgrave Castle was. He'd been in the county for a week; one could not remain in Lincolnshire that long without learning the locations of the grand houses, even if one wasn't a thief out to rob their inhabitants. He could take a look, he supposed. He probably should take a look. He owed it to someone. Hell, maybe he owed it to himself. He hadn't been interested in his father much†¦but he'd always been interested a little. And he was here. Who knew when he'd be in Lincolnshire again? He was far too fond of his head to ever stay in one place for long. He didn't want to talk to the old lady. He didn't want to introduce himself and make explanations or pretend that he was anything other than what he was – A veteran of the war. A highwayman. A rogue. An idiot. An occasionally sentimental fool who knew that the softhearted ladies who'd tended the wounded had it all wrong – sometimes you couldn't go home again. But dear Lord, what he wouldn't give just to take a peek. He closed his eyes. His family would welcome him back. That was the worst of it. His aunt would put her arms around him. She would tell him it wasn't his fault. She would be so understanding. But she would not understand. That was his final thought before he fell asleep. And dreamed of Ireland. The following day dawned bright and mockingly clear. Had it rained, Jack wouldn't have bothered to go. He was on horseback, and he'd spent enough of his life pretending he didn't mind that he was soaked to the skin. He did not ride in the rain if he did not have to. He'd earned that much, at least. But he was not meant to meet up with his cohorts until nightfall, so he did not have an excuse for not going. Besides, he was just going to look. Maybe see if there was some way he could leave the ring for the old lady. He suspected it meant a great deal to her, and even though he could have probably got a hefty sum for it, he knew he would not be able to bring himself to sell it. And so he ate a hearty breakfast – accompanied by a noxious beverage the innkeeper swore would clear his head, not that Jack had said anything other than, â€Å"Eggs,† before the fellow said, â€Å"I'll get what you need.† Amazingly, the concoction worked (hence the ability to digest the hearty breakfast), and Jack mounted his horse and took off toward Belgrave Castle at an unhurried pace. He'd ridden about the area frequently over the last few days, but this was the first time he found himself curious at his surroundings. The trees seemed more interesting to him for some reason – the shape of the leaves, the way they showed their backs when the wind blew. The blossoms, too. Some were familiar to him, identical to the ones that bloomed in Ireland. But others were new, perhaps native to the dales and fens of the region. It was odd. He wasn't sure what he was meant to be thinking about. Perhaps that this vista was what his father had seen every time he'd ridden along the same road. Or maybe that, but for a freak storm in the Irish Sea, these might be the flowers and trees of his own childhood. Jack did not know whether his parents would have made their home in England or Ireland. They were apparently going over to introduce his mother to the Cavendish family when their ship had gone down. Aunt Mary had said that they were planning to decide where to live after Louise had a chance to see a bit of England. Jack paused and plucked a leaf off a tree, for no reason other than whimsy. It wasn't as green as the ones at home, he decided. Not that it mattered, of course, except that in a strange way, it did. He tossed the leaf to the ground and with a snort of impatience, took off at a greater speed. It was ludicrous that he felt even a niggle of guilt at going over to see the castle. Good God, it wasn't as if he was going to introduce himself. He did not want to find a new family. He owed the Audleys far more than that. He just wanted to see it. From afar. To see what might have been, what he was glad hadn't been. But maybe should have been. Jack took off at a gallop, letting the wind blow the memories away. The speed was cleansing, almost forgiving, and before he knew it he was at the end of the drive. And all he could think was – Good Lord. Grace was exhausted. She'd slept the night before, but not much, and not well. And even though the dowager had chosen to spend the morning in bed, Grace had not been afforded that luxury. The dowager was powerfully demanding, whether vertical, horizontal, or, should she ever figure out how to hold the position, at a slant. And so even though she tossed and turned, and refused to lift her head from the pillow, she still managed to summon Grace six times. The first hour. Finally, she had become engrossed in a batch of letters Grace had dug up for her at the bottom of her late husband's old desk, tucked in a box labeled: JOHN, ETON. Saved by school papers. Who would have thought? Grace's moment of rest was interrupted not twenty minutes later, however, by the arrival of the Ladies Elizabeth and Amelia Willoughby, the pretty, blond daughters of the Earl of Crowland, longtime neighbors and, Grace was always delighted to note, friends. Elizabeth especially. They were of an age, and before Grace's position in the world had plummeted with the death of her parents, had been considered proper companions. Oh, everyone knew that Grace would not make a match like the Willoughby girls – she would never have a London season, after all. But when they were all in Lincolnshire, they were, if not equals, then at least on something of the same level. People weren't so fussy at the Dance and Assembly. And when the girls were alone, rank was never something they noticed. Amelia was Elizabeth's younger sister. Just by a year, but when they were all younger, it had seemed a massive gulf, so Grace did not know her nearly so well. That would change soon, though, she supposed. Amelia was betrothed to Thomas, and had been from the cradle. It would have been Elizabeth, except she was promised to another young lord (also in infancy; Lord Crowland was not one to leave matters to chance). Elizabeth's fellow, however, had died quite young. Lady Crowland (who was not one for tact) had declared it all very inconvenient, but the papers binding Amelia to Thomas had already been signed, and it was deemed best to leave matters as they were. Grace had never discussed the engagement with Thomas – they were friends, but he would never talk about something so personal with her. Still, she had long suspected that he found the entire situation rather convenient. A fiancee did keep marriage-minded misses (and their mamas) at bay. Somewhat. It was quite obvious that the ladies of England believed in hedging their bets, and poor Thomas could not go anywhere without the women attempting to put themselves in the best possible light, just in case Amelia should, oh, disappear. Die. Decide she didn't wish to be a duchess. Really, Grace thought wryly, as if Amelia had any choice in the matter. But even though a wife would be a far more effective deterrent than a fiancee, Thomas continued to drag his feet, which Grace thought dreadfully insensitive of him. Amelia was one-and-twenty, for heaven's sake. And according to Lady Crowland, at least four men would have offered for her in London if she had not been marked as the future Duchess of Wyndham. (Elizabeth, sister that she was, said it was closer to three, but still, the poor girl had been dangling like a string for years.) â€Å"Books!† Elizabeth announced as they entered the hall. â€Å"As promised.† At her behest, Elizabeth's mother had borrowed several books from the dowager. Not that Lady Crowland actually read the books. Lady Crowland read very little outside the gossip pages, but returning them was a fine pretext to visit Belgrave, and she was always in favor of anything that placed Amelia in the vicinity of Thomas. No one had the heart to tell her that Amelia rarely even saw Thomas when she was at Belgrave. Most of the time, she was forced to endure the dowager's company – company, however, being perhaps too generous a word to describe Augusta Cavendish whilst standing before the young lady who was meant to carry on the Wyndham line. The dowager was very good at finding fault. One might even call it her greatest talent. And Amelia was her favorite subject. But today she had been spared. The dowager was still upstairs, reading her dead son's Latin conjugations, and so Amelia had ended up sipping tea while Grace and Elizabeth chatted. Or rather, Elizabeth chatted. It was all Grace could do to nod and murmur in the appropriate moments. One would think her tired mind would go utterly blank, but the opposite was true. She could not stop thinking about the highwayman. And his kiss. And his identity. And his kiss. And if she would meet him again. And that he'd kissed her. And – And she had to stop thinking about him. It was madness. She looked over at the tea tray, wondering if it would be rude to eat the last biscuit. † – certain you are well, Grace?† Elizabeth said, reaching forward to clasp her hand. â€Å"You look very tired.† Grace blinked, trying to focus on her dear friend's face. â€Å"I'm sorry,† she said reflexively. â€Å"I am quite tired, although that is not an excuse for my inattention.† Elizabeth grimaced. She knew the dowager. They all did. â€Å"Did she keep you up late last night?† Grace nodded. â€Å"Yes, although, truthfully, it was not her fault.† Elizabeth glanced to the doorway to make sure no one was listening before she replied, â€Å"It is always her fault.† Grace smiled wryly. â€Å"No, this time it really wasn't. We were†¦Ã¢â‚¬  Well, really, was there any reason not to tell Elizabeth? Thomas already knew, and surely it would be all over the district by nightfall. â€Å"We were accosted by highwaymen, actually.† â€Å"Oh, my heavens! Grace!† Elizabeth hastily set down her teacup. â€Å"No wonder you appear so distracted!† â€Å"Hmmm?† Amelia had been staring off into space, as she frequently did while Grace and Elizabeth were nattering on, but this had clearly got her attention. â€Å"I am quite recovered,† Grace assured her. â€Å"Just a bit tired, I'm afraid. I did not sleep well.† â€Å"What happened?† Amelia asked. Elizabeth actually shoved her. â€Å"Grace and the dowager were accosted by highwaymen!† â€Å"Really?† Grace nodded. â€Å"Last night. On the way home from the assembly.† And then she thought – Good Lord, if the highwayman is really the dowager's grandson, and he is legitimate, what happens to Amelia? But he wasn't legitimate. He couldn't be. He might very well be a Cavendish by blood, but surely not by birth. Sons of dukes did not leave legitimate offspring littering the countryside. It simply did not happen. â€Å"Did they take anything?† Amelia asked. â€Å"How can you be so dispassionate?† Elizabeth demanded. â€Å"They pointed a gun at her!† She turned to Grace. â€Å"Did they?† Grace saw it again in her mind – the cold round end of the pistol, the slow, seductive gaze of the highwayman. He wouldn't have shot her. She knew that now. But still, she murmured, â€Å"They did, actually.† â€Å"Were you terrified?† Elizabeth asked breathlessly. â€Å"I would have been. I would have swooned.† â€Å"I wouldn't have swooned,† Amelia remarked. â€Å"Well, of course you wouldn't,† Elizabeth said irritably. â€Å"You didn't even gasp when Grace told you about it.† â€Å"It sounds rather exciting, actually.† Amelia looked at Grace with great interest. â€Å"Was it?† And Grace – Good heavens, she felt herself blush. Amelia leaned forward, her eyes lighting up. â€Å"Was he handsome, then?† Elizabeth looked at her sister as if she were mad. â€Å"Who?† â€Å"The highwayman, of course.† Grace stammered something and pretended to drink her tea. â€Å"He was,† Amelia said triumphantly. â€Å"He was wearing a mask,† Grace felt compelled to point out. â€Å"But you could still tell that he was handsome.† â€Å"No!† â€Å"Then his accent was terribly romantic. French? Italian?† Amelia's eyes grew even wider. â€Å"Spanish.† â€Å"You've gone mad,† Elizabeth said. â€Å"He didn't have an accent,† Grace retorted. Then she thought of that lilt, that devilish little lift in his voice that she couldn't quite place. â€Å"Well, not much of one. Scottish, perhaps? Irish? I couldn't tell, precisely.† Amelia sat back with a happy sigh. â€Å"A highwayman. How romantic.† â€Å"Amelia Willoughby!† Elizabeth scolded. â€Å"Grace was just attacked at gunpoint, and you are calling it romantic?† Amelia opened her mouth to reply, but just then they heard footsteps in the hall. â€Å"The dowager?† Elizabeth whispered to Grace, looking very much as if she'd like to be wrong. â€Å"I don't think so,† Grace replied. â€Å"She was still abed when I came down. She was rather†¦ehrm†¦distraught.† â€Å"I should think so,† Elizabeth remarked. Then she gasped. â€Å"Did they make away with her emeralds?† Grace shook her head. â€Å"We hid them. Under the seat cushions.† â€Å"Oh, how clever!† Elizabeth said approvingly. â€Å"Amelia, wouldn't you agree?† Without waiting for an answer, she turned back to Grace. â€Å"It was your idea, wasn't it?† Grace opened her mouth to retort that she would have happily handed them over, but just then Thomas walked past the open doorway to the sitting room. Conversation stopped. Elizabeth looked at Grace, and Grace looked at Amelia, and Amelia just kept looking at the now empty doorway. After a moment of held breath, Elizabeth turned to Amelia and said, â€Å"I think he does not realize we are here.† â€Å"I don't care,† Amelia declared, and Grace believed her. â€Å"I wonder where he went,† Grace murmured, although she did not think anyone heard her. They were all still watching the doorway, waiting to see if he'd return. There was a grunt, and then a crash. Grace stood, wondering if she ought to go investigate. â€Å"Bloody hell,† she heard Thomas snap. Grace winced, glancing over at the others. They had risen to their feet as well. â€Å"Careful with that,† she heard Thomas say. And then, as the three ladies watched in silence, the painting of John Cavendish moved past the open doorway, two footmen struggling to keep it upright and balanced. â€Å"Who was that?† Amelia asked once the portrait had gone by. â€Å"The dowager's middle son,† Grace murmured. â€Å"He died twenty-nine years ago.† â€Å"Why are they moving the portrait?† â€Å"The dowager wants it upstairs,† Grace replied, thinking that ought to be answer enough. Who knew why the dowager did anything? Amelia was apparently satisfied with this explanation, because she did not question her further. Or it could have been that Thomas chose that moment to reappear in the doorway. â€Å"Ladies,† he said. They all three bobbed curtsies. He nodded in that way of his, when he was clearly being nothing but polite. â€Å"Pardon.† And then he left. â€Å"Well,† Elizabeth said, and Grace wasn't certain whether she was trying to express outrage at his rudeness or simply fill the silence. If it was the latter, it didn't work, because no one said anything more until Elizabeth finally added, â€Å"Perhaps we should leave.† â€Å"No, you can't,† Grace replied, feeling dreadful for having to be the bearer of such bad news. â€Å"Not yet. The dowager wants to see Amelia.† Amelia groaned. â€Å"I'm sorry,† Grace said. And meant it. Amelia sat down, looked at the tea tray and announced, â€Å"I'm eating the last biscuit.† Grace nodded. Amelia would need sustenance for the ordeal ahead. â€Å"Perhaps I should order more?† But then Thomas returned again. â€Å"We nearly lost it on the stairs,† he said to Grace, shaking his head. â€Å"The whole thing swung to the right and nearly impaled itself on the railing.† â€Å"Oh, my.† â€Å"It would have been a stake through the heart,† he said with grim humor. â€Å"It would have been worth it just to see her face.† Grace prepared to rise and make her way upstairs. If the dowager was awake, that meant her visit with the Willoughby sisters was over. â€Å"Your grandmother rose from bed, then?† â€Å"Only to oversee the transfer. You're safe for now.† He shook his head, rolling his eyes as he did so. â€Å"I cannot believe she had the temerity to demand that you fetch it for her last night. Or,† he added quite pointedly, â€Å"that you actually thought you could do it.† Grace thought she ought to explain. â€Å"The dowager requested that I bring her the painting last night,† she told Elizabeth and Amelia. â€Å"But it was huge!† Elizabeth exclaimed. â€Å"My grandmother always favored her middle son,† Thomas said, with a twist of his lips that Grace would not have called a smile. He glanced across the room, and then, as if suddenly realizing his future bride was present, said, â€Å"Lady Amelia.† â€Å"Your grace,† she responded. But he couldn't possibly have heard her. He was already back to Grace, saying, â€Å"You will of course support me if I lock her up?† â€Å"Thom – † Grace began, cutting herself off at the last moment. She supposed that Elizabeth and Amelia knew that he had given her leave to use his given name while at Belgrave, but still, it seemed disrespectful to do so when others were present. â€Å"Your grace,† she said, enunciating each word with careful resolve. â€Å"You must grant her extra patience this day. She is distraught.† Grace sent up a prayer for forgiveness as she let everyone think the dowager had been upset by nothing more than an ordinary robbery. She wasn't precisely lying to Thomas, but she suspected that in this case the sin of omission could prove equally dangerous. She made herself smile. It felt forced. â€Å"Amelia? Are you unwell?† Grace turned. Elizabeth was watching her sister with concern. â€Å"I'm perfectly fine,† Amelia snapped, which was enough, of course, to show that she was not. The pair bickered for a moment, their voices low enough so Grace could not make out their exact words, and then Amelia rose, saying something about needing some air. Thomas stood, of course, and Grace rose to her feet as well. Amelia passed by and even reached the doorway before Grace realized that Thomas did not intend to follow. Good heavens, for a duke, his manners were abominable. Grace elbowed him in the ribs. Someone had to, she told herself. No one ever stood up to the man. Thomas shot her a dirty look, but he obviously realized that she was in the right, because he turned to Amelia, nodded his head the barest of inches, and said, â€Å"Allow me to escort you.† They departed, and Grace and Elizabeth sat silently for at least a minute before Elizabeth said resignedly, â€Å"They are not a good match, are they?† Grace glanced at the door, even though they had long since departed. She shook her head. It was huge. It was a castle, of course, and meant to be imposing, but really. Jack stood, open-mouthed. This was huge. Funny how no one had mentioned that his father was from a ducal family. Had anyone even known? He had always assumed his father had been the son of some jolly old country squire, maybe a baronet or possibly a baron. He had always been told that he was sired by John Cavendish, not Lord John Cavendish, as he must have been styled. And as for the old lady†¦Jack had realized that morning that she had never given her name, but surely she was the duchess. She was far too imperious to be a maiden aunt or widowed relation. Good Lord. He was the grandson of a duke. How was that possible? Jack stared at the structure before him. He was not a complete provincial. He'd traveled widely whilst in the army and had gone to school with the sons of Ireland's most notable families. The aristocracy was not unknown to him. He did not consider himself uncomfortable in their midst. But this†¦ This was huge. How many rooms in the place? There had to be over a hundred. And what was the provenance? It didn't look quite medieval, despite the crenellations at the top, but it was certainly pre-Tudor. Something important must have happened there. Houses did not get this big without stumbling into the occasional historic event. A treaty, maybe? Perhaps a royal visit? It sounded like the sort of thing that would have been mentioned in school, which was probably why he didn't know it. A scholar he was not. The view of the castle as he'd approached had been deceptive. The area was heavy with trees, and the turrets and towers seemed to twinkle in and out of sight as he moved through the foliage. It was only when he reached the end of the drive that it had come completely into view – massive and amazing. The stone was gray in color, with a hint of a yellow undertone, and although its angles were mostly squared off, there was nothing boring about the facade. It dipped and rose, jutted out and swept back in. No long Georgian wall of windows was this. Jack couldn't even imagine how long it would take a newcomer to find his way around inside. Or how long it would take to find the poor fellow once he got himself lost. And so he stood and stared, trying to take it in. What would it have been like to grow up there? His father had done so, and by all accounts he'd been a nice enough fellow. Well, by one account, he supposed – his Aunt Mary was the only person he knew who'd known his father well enough to pass along a story or two. Still, it was difficult to imagine a family living there. His own home in Ireland had not been small by any standards, but still, with four children it often felt as if they were constantly crashing into one another. You couldn't go ten minutes or even ten steps without being swept into a conversation with a cousin or a brother or an aunt or even a dog. (He'd been a good dog, God rest his furry little soul. Better than most people.) They had known each other, the Audleys. It was, Jack had long since decided, a very good – and very uncommon – thing. After a few minutes there was a small flurry of movement at the front door, then three women emerged. Two were blond. It was too far away to see their faces, but he could tell by the way they moved that they were young, and probably quite pretty. Pretty girls, he'd long since learned, moved differently than the plain ones. It did not matter if they were aware of their beauty or not. What they weren't was aware of their plainness. Which the plain ones always were. Jack quirked a half smile. He supposed he was a bit of a scholar of women. Which, he'd often tried to convince himself, was as noble a subject as any. But it was the third girl – the last to emerge from the castle – who captured his breath and held him motionless, unable to look away. It was the girl from the carriage the night before. He was sure of it. The hair was the right color – shiny and dark, but it wasn't such a unique shade that it couldn't be found elsewhere. He knew it was her because†¦because†¦ Because he did. He remembered her. He remembered the way she moved, the way she felt pressed up against him. He remembered the soft breath of the air between their bodies when she'd moved away. He'd liked her. He didn't often get the chance to like or dislike the people he waylaid, but he'd been thinking to himself that there was something rather appealing about the flash of intelligence in her eyes when the old lady had shoved her at him, giving him permission to hold a gun to her head. He'd not approved of that. But he'd appreciated it all the same, because touching her, holding her – it had been an unexpected pleasure. And when the old lady returned with the miniature, his only thought had been that it was a pity he didn't have time to kiss her properly. Jack held himself quietly as he watched her move in the drive, glancing over her shoulder, then leaning forward to say something to the other girls. One of the blondes linked arms with her and led her off to the side. They were friends, he realized with surprise, and he wondered if the girl – his girl, as he was now thinking of her – was something more than a companion. A poor relation, maybe? She was certainly not a daughter of the house, but it seemed she was not quite a servant. She adjusted the straps of her bonnet, and then she (What was her name? He wanted to know her name) pointed to something in the distance. Jack found himself glancing the same way, but there were too many trees framing the drive for him to see whatever had captured her interest. And then she turned. Faced him. Saw him. She did not cry out, nor did she flinch, but he knew that she saw him in the way she†¦ In the way she simply was, he supposed, because he could not see her face from such a distance. But he knew. His skin began to prickle with awareness, and it occurred to him that she'd recognized him, too. It was preposterous, because he was all the way down the drive, and not wearing his highwayman's garb, but he knew that she knew she was staring at the man who had kissed her. The moment – it could only have lasted seconds – stretched into eternity. And then somewhere behind him a bird cawed, snapping him from his trance, and one thought pounded through his head. Time to go. He never stayed in one spot for long, but here – this place – it was surely the most dangerous of all. He gave it one last look. Not of longing; he did not long for this. And as for the girl from the carriage – he fought down something strange and acrid, burning in his throat – he would not long for her, either. Some things were simply untenable. â€Å"Who was that man?† Grace heard Elizabeth speak, but she pretended not to. They were sitting in the Willoughbys' comfortable carriage, but their happy threesome now numbered four. The dowager had, upon rising from her bed, taken one look at Amelia's sun-kissed cheeks (Grace did think that she and Thomas had taken quite a long walk together, all things considered), and gone into a barely intelligible tirade about the proper decorum of a future duchess. It was not every day one heard a speech containing dynasty, procreation, and sunspots – all in one sentence. But the dowager had managed it, and now they were all miserable, Amelia most of all. The dowager had got it into her head that she needed to speak with Lady Crowland – most probably about the supposed blemishes on Amelia's skin – and so she invited herself along for the ride, giving instructions to the Wyndham stables to ready a carriage and send it after them for the return journey. Grace had come along, too. Because, quite frankly, she didn't have any choice. â€Å"Grace?† It was Elizabeth again. Grace sucked in her lips and positively glued her eyes to a spot on the seat cushion just to the left of the dowager's head. â€Å"Who was it?† Elizabeth persisted. â€Å"No one,† Grace said quickly. â€Å"Are we ready to depart?† She looked out the window, pretending to wonder why they were delayed on the drive. Any moment now they would leave for Burges Park, where the Willoughbys lived. She had been dreading the journey, short though it was. And then she'd seen him. The highwayman. Whose name wasn't Cavendish. But once was. He had left before the dowager emerged from the castle, turning his mount in a display of horsemanship so expert that even she, who was no equestrienne, recognized his skill. But he had seen her. And he had recognized her. She was certain of it. She'd felt it. Grace tapped her fingers impatiently against the side of her thigh. She thought of Thomas, and of the enormous portrait that had passed by the doorway of the sitting room. She thought of Amelia, who had been raised since birth to be the bride of a duke. And she thought of herself. Her world might not be quite what she wanted, but it was hers, and it was safe. One man had the power to send it all crashing down. Which was why, even though she would have traded a corner of her soul for just one more kiss from a man whose name she did not know, when Elizabeth remarked that it looked as if she knew him, she said, sharply, â€Å"I do not.† The dowager looked up, her face pinched with irritation. â€Å"What are you talking about?† â€Å"There was a man at the end of the drive,† Elizabeth said, before Grace could deny anything. The dowager's head snapped back in Grace's direction. â€Å"Who was it?† she demanded. â€Å"I don't know. I could not see his face.† Which wasn't a lie. Not the second part, at least. â€Å"Who was it?† the dowager thundered, her voice rising over the sound of the wheels beginning their rumble down the drive. â€Å"I don't know,† Grace repeated, but even she could hear the cracks in her voice. â€Å"Did you see him?† the dowager asked Amelia. Grace's eyes caught Amelia's. Something passed between them. â€Å"I saw no one, ma'am,† said Amelia. The dowager dismissed her with a snort, turning the full weight of her fury on Grace. â€Å"Was it he?† Grace shook her head. â€Å"I don't know,† she stammered. â€Å"I couldn't say.† â€Å"Stop the carriage,† the dowager yelled, lurching forward and shoving Grace aside so she could bang on the wall separating the cabin and the driver. â€Å"Stop, I tell you!† The carriage came to a sudden stop, and Amelia, who had been sitting face front beside the dowager, tumbled forward, landing at Grace's feet. She tried to get up but was blocked by the dowager, who had reached across the carriage to grab Grace's chin, her long, ancient fingers digging cruelly into her skin. â€Å"I will give you one more chance, Miss Eversleigh,† she hissed. â€Å"Was it he?† Forgive me, Grace thought. She nodded.

Positive psychology Essay

As a child we are told the future is our oasis But is this really the truth when we look at the basics? When I was young and asked what I wanted to be I of course replied â€Å"just like daddy† Now I wasn’t referring to his business success I was only concerned about the love he expressed So when we are told that the future couldn’t be brighter Why do people only think about becoming an astronaut or fire fighter? What is often forgotten is the truth of the matter There is much more to life, this is just a part of the batter Making the cake is a process that is extensive. What we need to remember is that it doesn’t need to be expensive Why does one’s life have to be determined by their occupation? It has become a norm in society, almost a fixation In order to be happy one has to have a high paying job and big house Luxuries extend as a far as a Maserati or a cottage with a boathouse With this in mind, young students face great pressure and tension School has become an entity beyond comprehension It was in my understanding that we come here to learn But when I look around all I see is heads turned. Heads turned from the reality of the true meaning of life Kids only concerned with grades as if they are being forced with a knife This figurative dagger comes in the hands of universities What happened to opening the door for a girl or showing a little common courtesy? People approach university with a new hopeful attitude We can now receive self fulfillment and gratitude The reality of the situation is long, grueling hours spent with your head buried in a book No one reflects on themselves or even lifts their head to take a look. Many pass these four years with not an aspiration in mind Not even looking ahead, continuing to remain blind Then university is over, time for life to begin With endless possibility, one cannot help but grin Then it hits you, like a strike across the face Money is happiness therefore you join the rat race What is interesting about this race is that there is no winner The winner is still a rat; the only objective is to provide a better dinner What has been lost in the mix is the wisdom and prudence Any successful man would point out that our actions are rather foolish And by successful I am not referring to economic victory I am referring to the people who have shaped our history Not the Donald Trumps, Mark Zuckerberg’s or Warren Buffets These are simply the people enslaved as economic puppets I am referring to the Gandhi’s, Malcolm X’s and Martin Luther King’s The people who created change, the liberation they were able to bring I believe that with great people comes great change. This change is not as simple as a stock trade, it is long range Not only is it eternally priceless but it has a rippling effect One great person affects all around them, sometimes unknowingly or indirect When I think of inspiration I think of the president of Uruguay The poorest president in the world challenged what society sees as the way Donating 90% of his salary leaving just $1250 dollars per year to his name It makes one question why we only seek to make large sums of money or achieve great fame Don’t mistake my message for an attempt to say that we are all greedy I simply want you to be aware that life isn’t all that easy Money can solve your surface problems but this solution is temporary. Reflect on your goals and ambitions before you end up in a cemetery I feel that change is possible regardless of your situation It does not depend on your gender, race, religion or sexual orientation Change isn’t easy but we are all more than capable When life pushes you to the curb, you are hurt but unbreakable In a world that seams hopeless it is important to remember life goes on Make sure to look up, stay positive and never get withdrawn. We are all brothers and sisters part of something that is greater Be fearless and hopeful and live up to your nature We are often referred to as the careless generation who lack a work ethic But I would argue that statement is unjustified and rather pathetic We have the means to create change and it is already happening People like the Keilburger’s come across as rather baffling But when looked at in perspective they are simply two people with a dream A dream that arises a common theme. This theme is that we must love and be aware We must create a life for all that is just and fair In saying all this I am not trying to discourage I hope all your child hood dreams come to the surface There’s a world full of hope, possibility and prosperity And my wish to all is a fulfilling life of mental clarity Ultimately what it comes down to is the way we are taught as youth There is nothing more powerful then the honest truth When asked what we would like to be in our future Happiness should come to mind, the only acceptable answer.

My personal Future plan Essay Example | Topics and Well Written Essays - 250 words

My personal Future plan - Essay Example My educational background and these skills ensure that I have the analytical abilities to address issues that arise along my career. I am passionate about science, and it will ease my fitting into the Engineering department. The engineering department needs employees that are thinkers, adore teamwork and are effective communicators. Given the commonly large workload in these departments, employees should be organized so as to save time in duty execution while achieving efficiency. Through my skills, I can develop reliable and dependable communication skills that would facilitate a peaceful coexistence with other employees. Effective communication is essential to an organization’s performance, and I can facilitate it through developing relevant presentation tools. My ability to interact with others will also ensure that we can work together with my colleagues in developing efficient coordination. Though I am an active team player, I possess the initiative to perform on personal tasks while ensuring that deadlines are met. In handling meetings, the opinion of every individual count and with this skill, I will influence fellow employees. My initiative is developed through confidence and the interest to challenge my abilities in achieving required success. The engineering department needs reliable individuals, and the flexibility I have ensures that I am available whenever the organization needs my services. I am also highly organized, a critical factor to the success of any engineer and employees in the

Death of a Salesman Essay Example | Topics and Well Written Essays - 500 words

Death of a Salesman - Essay Example To put it in short, DEATH OF A SALESMAN was the Great Grand Father of all cinematic technologies. This structural strength of the theatrical art in DEATH OF A SALESMAN stands behind as the everlasting appeal of the play. And above all, it is Miller’s affluence in portraying the culture and society of the day. Any art that reflects the society of the day has the capability to rise to the status of an epic. As such DEATH OF A SALESMAN enters into that domain, gluing theatrical drama and cinema with efficacious contents. This sort of strength transcending ages can be accounted for the perennial appeal for DEATH OF A SALESMAN. PORTRAYAL OF AMERICA: Miller has elegantly portrayed the patriarchal construct of American society. The never dying confusion of what it meant to be an American is the undertone of the play. The play is highly virulent in roping writers, critics and social thinkers of future generations to expose the hidden lies and underlying illusions fostered in a society built upon public myths and nationalistic pride. (Centola, 2007: p.37) CHARACHTERISATION: Characterization of the protagonist in the play has well been substantiated with the creation of his son Biff’s character. Parental imposition of unattained goals into kids’ psyche is well knit throughout the play.

The History of the Transportation Security Agency Research Paper

The History of the Transportation Security Agency - Research Paper Example This research paper deals with the role of the organization, reason for its foundation, change since the day it was incepted and the types of law enforcement instructions. The TSA has a very transparent and significant organizational structure. It has a vertical structure which consists of 21 members including the chief of staff. Each position in the TSA has a significant responsibility. Division of positions in a hierarchical manner allows the organization to overcome the security challenges and makes decision making strong and acceptable for everyone. The reason this agency implemented this kind of structure is solely because it does not cause any discrimination between the members regarding any important strategic decision making as all decisions are needed to be approved by the administrator. TSA implementing a vertical hierarchical structure reduced the external challenges as well. Each and every policy introduced needs permission of the director and proper adherence to policies and governance is maintained by the administrator. The following chart shows the organizational structure in a very appropriate way. The organizational structure maintains not only law and order in place or adherence to policies but also helps to maintain integrity and liberty. By application of this kind of structure the agency has better co-ordinance with citizens and work culture in the organization gives optimum output. TSA has been successful in providing homeland security across U.S. because of its strong administration and so it can be stated the organizational structure plays a very important role in national defence and safety. The TSA was formed as a wing of the Aviation and Transportation Security Act in the year 2001. It was signed into law by George W. Bush the president of U.S. on 11/19/2001. Later it was moved to Department of Homeland Security on 03/09/2003. The TSA was founded in the

Marketing strategy Coursework Example | Topics and Well Written Essays - 250 words

Marketing strategy - Coursework Example Until the end of 2013, almost 5oo million iPhones were sold. This clearly indicates that people want to use these mobiles, despite the fact that these gadgets are relatively expensive. Moreover, the company preferred to focus on the demands of its various customers, and it offers them with packages that suited their needs. In this regard one can find the company using Kohler’s advice. Philip Kohler is a reference when it comes to marketing; and according to him marketing is about creating genuine customer value, he further elaborates that selling the product does not complete the story, marketing campaigns must be designed in a way where customers become a priority over the services offered or products available(Armstrong, Kotler, Trifts, & Buchwitz, 2014; Hollensen, 2015). Mostly, marketing campaigns are product focused, however, from the point of view of Kohler; it needs to focus on the consumers (Armstrong, Kotler, Trifts, & Buchwitz, 2014). The market of cellular phones is perhaps one of the most rapidly expanding arena, and the competition among mobile brands is severe. It is always hard for the newcomers to come in and make their position. In this regard Apple turned out to be successful; it not only made its place, but also improved its ranking among the mobiles. There was a time when Nokia, Motorola, and etc. dominated the market, but today iPhone is one of the leading brands. Initially the company focused on people who were old customers of Apple, and later on the marketing strategy of the company entered the phase of expansion. Today, there are more iPhone has become one of the most sold brand of

Leadership assessmt 2 Essay Example | Topics and Well Written Essays - 500 words

Leadership assessmt 2 - Essay Example Davis created a team to lead a centralized call center. One of the purposes of the call center was to become proactive in planning and inventory forecasting. The use of teamwork encouraged by Davis helped the company improve its organizational culture. The firm has become more flexible and adaptive which made the company more aligned with the business environment of the 21st century. Davis encouraged in state competition. He did not use competition between states to lower the risk of dysfunctional behavior occurring due to the consequences of competition. The use of competition can lead to negative behaviors such as people lying to each other and mistrust among colleagues. Competitor can also lead to people stepping on each other in order to get ahead in the corporate ladder. Another potential negative aspect of competition is that it can intensify the work conditions and environment which can lead to work related stress. Employees can become burn out due to the excessive use of competition. Competition can encourage individualism instead of cooperation. Employees that got involvement in team sports in the past are more likely to become good team players in the corporate world. Recruiters of talent look positively to a candidate having prior involvement in sporting teams. Team sports teach players important skills such as learning to cooperate with others and build bonds of trust among teammates. Sports also teach people values, discipline, and encourage good physical health. Sports teach people how to work together as a cohesive and united team. Being a good team player in the business world is an asset because cooperation and teamwork are skills that needed in corporate America. In order to implement teamwork at CCA Davis opened up the lines of communication among the workers and the managerial staff. Open communication enables the free flow of ideas. These ideas can be used by teammates to find

Revelation Essay Example | Topics and Well Written Essays - 3000 words

Revelation - Essay Example To consider what it means for Jesus to be â€Å"the son of God† in Christian theology can lead to different interpretation based on the school or church which the believer belongs to or derives teachings from personally. To see Jesus as the son of God is to recognize him as the founder of one of the world’s great religions, a holy prophet with a divine mission and message. This view is also to see Jesus’ teachings as forming the basis of morality in human civilization and as a mediating agent of afterlife or heaven. To view Jesus as a direct son of God is one way to approach and understand the power and majesty of his life, teaching, and ministry on earth, as well as to place faith in the heavenly afterlife where his full glory would be manifest in ways different than it can be experienced materially. To view Jesus as son of God is to view his teachings as proceeding from a source that is equivalent with the primordial force of creation in the universe, and the b eing that sustains all life through loving-kindness and care. As found in Matthew 1:1-2:12; Mark 1:1-20; Luke 1:1-2:52; John 1:1-18, and other scriptural chapters, to view Jesus as the Son of God awakens the soul of the individual to the ability to return to God’s full glory and grace through the purification of the being from sin. In viewing the soul as the vehicle of eternal life, and the universal love of God as the modality of the soul, Christian teaching can point a way to attain psychological and social states of awareness that lead to personal and collective good. II. The Gospel of John - Jesus' Command to Love One Another One of the deepest questions in Christianity is why it was necessary for Jesus to suffer and die on the cross, rather than using supernatural powers to escape this death and continue teaching on earth or vanquishing evil definitively and allowing for a world free from evil. From a theological standpoint, the Gospel of John is profound in meaning and proposes a solution related to these issues. For example, if God as understood in Christianity through the human experience is omnipotent and the source of power for even the smallest activities of natural life, why is the crucifixion of Jesus required and planned in advance in a manner that is suggestive of fatalistic determination by God rather than free will? When Jesus submits his human life and will to follow a path of events that he knows will lead to his death by crucifixion, the Gospel of John identifies the devil as a cause of Judas’ behavior. From this there arises the theological question of the nature or modality of evil in the world, and whether Christianity is fundamentally a dualist religion or a unitary one. In the passage John 13:1-5, the foot-washing ceremony appears at a critical point in Jesus’ life and teaching to the disciples after the Last Supper, and this passage is rich in both practical and theological meaning. The foot-washing ceremony is al most completely foreign to modern individuals in the West, though may be still practiced ritually in some Catholic, Baptist, and other congregations. On one level it means absolute humility through service, which Jesus is not only asking of the disciples but is actually giving to them through his example. The taboo against touching the feet of another person or the association of the feet with filth and defilement is common in the Arab world of the Middle East even today. By washing

Yarra Plenty Regional Library Assignment Example | Topics and Well Written Essays - 3000 words

Yarra Plenty Regional Library - Assignment Example Libraries have been in the forefront in embracing the technological changes in the information society. Libraries have been the driving force in research in various fields of study. Therefore, libraries have been the biggest player on matters of education. With the recent challenges of global financial crisis, libraries are facing the challenges financial undercutting. Considering the stakes at hand, there is a strong feeling that this may have a negative impact on the economy and the community since libraries will not be in a position to fulfill their mandate. One of the strengths of libraries is that there is increased demand for knowledge than ever before and libraries are in a position to handle information both analog and digital. There is a continuous growth in world population, which is an opportunity for libraries coupled with the fact that there is more demand for information. The biggest threat to libraries is the advancement in technology. Availability of e-books on the in ternet has reduced library visits since most books can now be accessed through the websites. To solve this problem of budget cuts, the public and the government must be made to understand the importance of libraries in today’s world and the steps libraries are taking to remain relevant in this dynamic world. When you compare the libraries today and the libraries in the past half a decade, you will not fail to notice a number of new developments. These developments cut across technological changes and cultural changes. Since libraries are used by the public, adequate financing of the libraries is seen as a good move by the public. Adapting to new technological changes calls for financial sacrifices, which must be undertaken by the library management. They need to hire competent personnel to help adapt to the changes in the technological world. There is a need for procurement of new machines and new books and house them in a state of art building.

A rose for emily Essay Example | Topics and Well Written Essays - 250 words - 1

A rose for emily - Essay Example At the time Emily remains indoors, Tobe’s hair is used in place of Emily’s to tell time in the town. The reader knows about this symbolism following the change in timing of events every time hair is used. Pocket watch has also been used a symbol of time in the story. Board of Aldermen members visited Emily to deliberate on tax issues ten years before her death (Faulkner, 2007). During this visit, a pocket watch that was invisible ticked within Emily’s clothing. â€Å"Then they could hear the invisible watch ticking at the end of the gold chain† (Faulkner, 2007).This represents that Emily was aware of time factor in her life, and that time acted as an invisible force that compelled her to become self-conscious about her life and the people around. At this time, time is ticking down towards happiness chances for Emily. The reader knows about this symbolism from the flashbacks presented in the story. Pocket watch is literally used to observe time, and each event in the story is time conscious. This is more so in relation to Emily’s

Importance of English in Pakistan Essay Example for Free

Importance of English in Pakistan Essay As time is passing, the language of the English men and Americans seems to grow in significance. English is becoming the most common form of communication in the world and most of the countries in the world have their academic curriculum being taught in English. It is time for Pakistan to also make a shift from the Urdu medium system of education to the English system because its the need of the hour. Since independence, Urdu was promoted to become the language to be used in all factions of the country. However as time passed people started realizing that international standards required them to learn a language which is understood by majority of the world. The people of Pakistan realized that for their country to develop they need to know how to communicate in English or they will be lost in the competing forces of the world. The British education system was introduced after few years of independence. People started shifting from the local Urdu medium education to the British education system. However the transition took a lot of time as private school sector was very small in the beginning. Only the elite could educate their children with the British education system as it was very expensive. However when the trend of private schools began to emerge, students from a British educational background were preferred for jobs all over the country. The government of Pakistan realized the growing importance of English and then made English as a compulsory language to be taught in all schools. English continues to be the source of communication in both the private and government offices. In this era of globalization with increasing amounts of international trade one needs to know how to communicate in English. People in Pakistan are in continuous contact with international traders and all of them have to communicate in English. The various business software used in organizations such as Multinational Companies and Banks are all in English and one needs to be totally familiar with the language to operate them. There are various critics who believe that English is harmful for the country. They argue that our culture and our traditions require Urdu to be the language for all purposes. They say that by adopting English we are going to forget our culture and lose our identity as English is not what defines us. The trend of communicating in English has grown to the extent that the elite of the country use English as the medium to communicate with their friends and family in daily life. The younger generation feels inferior if they can not communicate in English properly. Many of the young children have a stronger grip of English than Urdu. Majority of the population in the country now prefers the British education system and public schools are only filled by people of the lower income class who could not afford private education. No doubt learning English is very important for the people of Pakistan but they should not forget that it is not the language which defines them or their culture. English should be used as a medium of education but the value of the mother language Urdu should not be undermined.

Eutrophication Process Steps

Eutrophication Process Steps Eutrophication is world-wide environmental issue environmental problems that are related to high concentration nutrients. It is the process due to increment of algae productivity which affects adversely aquatic life and also human and animal health. It is mainly influenced by humankind activities that include agriculture and sewage effluent due to creating high amount of nutrients. The mechanism of eutrophication is briefly described in Figure 1. Large amount of nutrient input to the water body is the main effect and high level of phytoplankton biomass results that lead to algal bloom. Consumption of oxygen close the bottom of the water body is the result. The other effects of the process can be divided two categories that are related to: nutrient dispersion, phytoplankton growth Nitrogen and phosphorus are two main nutrients for aquatic life. In addition, A silica is also necessary for the diatoms. Nutrient concentration in the water body changes during eutrophication. The nutrient is the limiting factor, if it is not be available for algae develop. The sufficient factor to determine limiting factor is the ratio of nitrogen to phosphorus compounds in the water body is an important factor for control mechanism. (Table 1). Phosphorus is generally limiting factor for phytoplankton in fresh waters. For large marine areas frequently have nitrogen as the limiting nutrient, especially in summer. Intermediate areas such as river plumes are often phosphorus-limited during spring,but may turn to silica or nitrogen limitation in summer. The enrichment of water by nutrients can be of natural origin but it is often dramatically increased by human activities. This occurs almost everywhere in the world. There are three main sources of anthropic nutrient input: runoff, erosion and leaching from fertilized agricultural areas, and sewage from cities and industrial wastewater. Atmospheric deposition of nitrogen (from animal breeding and combustion gases) can also be important. According to the European Environment Agency, the main source of nitrogen pollutants is run-off from agricultural land, whereas most phosphorus pollution comes from households and industry, including phosphorus- based detergents. The rapid increase in industrial production and in in-house consumption during the 20th century has resulted in greater volumes of nutrient-rich wastewater. Although there has been recently a better management of nitrogen and phosphorus in agricultural practices, saturation of soils with phosphorus can be noted in some areas where spreading of excessive manure from animal husbandry occurs. Nutrient removal in sewage treatment plants and promotion of phosphorus-free detergents are vital to minimize the impact of nitrogen and phosphorus pollution on Europes water bodies7. Since 1980, nitrate concentrations in major EU  rivers have generally remained constant. There is no  evidence that reduced application of nitrogen fertilizers  to agricultural land has resulted in lower nitrate  concentrations in rivers. Indeed, concentrations in  some regions in Europe, such as Brittany, or Poitou in  France, and Catalunya in Spain, are still increasing. More detailed information on nitrates are to be found  in the companion pamphlet in this series nitrate and  health and in the E.C. report mentioned in (6). wastewater treatment and less phosphorus in household  detergents. Phosphorus release from industry  has also fallen sharply (Figure 3) whereas phosphorus  from agriculture, despite a reduction in the consumption  of phosphate fertilizers in the EU, remains an  important source of phosphorus pollution.   Unfortunately, due to the main role of nitrogen in the  eutrophication process in summer in the coastal zone,  the reduction in the discharge of phosphorus from  rivers into the sea has not been visible, except in very  specific sites. In most cases the phosphorus released  by the sediments into the open sea is sufficient to  allow eutrophication to occur, although external inputs have sharply decreased. In fact, only the Dutch coast  has benefited from the improvement of the water of  the Rhine, everywhere else the situation is stable or  has worsened. Some activities can lead to an increase in adverse  eutrophication and, although they are very specific,  they should be noted: Aquaculture development: Expansion of aquaculture  contributes to eutrophication by the discharge of  unused animal food and excreta of fish into the  water; The transportation of exotic species: Mainly via the  ballasts of big ships, toxic algae, cyanobacteria and  nuisance weeds can be carried from endemic areas  to uncontaminated ones. In these new environments  they may find a favourable habitat for their diffusion  and overgrowth, stimulated by nutrients availability; Reservoirs in arid lands: The construction of large  reservoirs to store and manage water has been  taking place all over the world. These dams are built  in order to allow the collection of drainage waters  through huge hydrographic basins. Erosion leads to  the enrichment of the waters of these reservoirs by  nutrients such as phosphorus and nitrogen Factors supporting the development  of eutrophication Besides nutrient inputs, the first condition supporting  eutrophication development is purely physical it is  the containment (time of renewal) of the water. The  containment of water can be physical, such as in a  lake or even in a slow river that works as a batch  (upstream waters do not mix with downstream  waters), or it can be dynamic.   The notion of dynamic containment is mostly relevant  for marine areas. Geological features such as the  shape of the bottom of the sea, the shape of the  shores, physical conditions such as streams, or large  turbulent areas, and tidal movements, allow some  large marine areas to be really contained, exhibiting  very little water renewal. This is known as dynamic  containment. In other cases, due to tidal effects, and/or streams,  some areas that would seem to be prone to containment  see their waters regularly renewed and are not  contained at all and are therefore very unlikely to  become eutrophic. Other physical factors influence eutrophication of  water bodies. Thermal stratification of stagnant water  bodies (such as lakes and reservoirs), temperature  and light influence the development of aquatic algae. Increased light and temperature conditions during  spring and summer explain why eutrophication is a  phenomenon that occurs mainly during these seasons. Eutrophication itself affects the penetration of  light through the water body because of the shadow  effect coming from the development of algae and  other living organisms and this reduces photosynthesis in deep water layers, and aquatic grass and  weeds bottom development. Main consequences  of eutrophication The major consequence of eutrophication concerns  the availability of oxygen. Plants, through photosynthesis,  produce oxygen in daylight. On the contrary, in  darkness all animals and plants, as well as aerobic  microorganisms and decomposing dead organisms,  respire and consume oxygen. These two competitive  processes are dependent on the development of the  biomass. In the case of severe biomass accumulation,  the process of oxidation of the organic matter that has  formed into sediment at the bottom of the water body  will consume all the available oxygen. Even the oxygen  contained in sulphates (SO4  2-) will be used by  some specific bacteria. This will lead to the release of  sulphur (S2-) that will immediately capture the free oxygen  still present in the upper layers. Thus, the water  body will loose all its oxygen and all life will disappear.  This is when the very specific smell of rotten eggs, originating  mainly from sulphur, will appe ar.   In parallel with these changes in oxygen concentration  other changes in the water environment occur: Changes in algal population: During eutrophication, macroalgae, phytoplankton (diatoms, dinoflagellates,  chlorophytes) and cyanobacteria, which  depend upon nutrients, light, temperature and water  movement, will experience excessive growth. From  a public health point of view, the fact that some of  these organisms can release toxins into the water or  be toxic themselves is important.   Changes in zooplankton, fish and shellfish population: Where eutrophication occurs, this part of the ecosystem is the first to demonstrate changes. Being most sensitive to oxygen availability, these species may die from oxygen limitation or from changes in the chemical composition of the water such as the excessive alkalinity that occurs during intense photosynthesis. Ammonia toxicity in fish for example is much higher in alkaline waters. Effects of eutrophication The effects of eutrophication on the environment may, have deleterious consequences for the health of exposed animal and human populations, through various pathways. Specific health risks appear when fresh water, extracted from eutrophic areas, is used for the production of drinking water. Severe impacts can also occur during animal watering in eutrophic waters. Macroalgae, phytoplankton and cyanobacteria blooms Algae display varying degrees of complexity depending on the organization of their cells. Macroalgae, phytoplankton and cyanobacteria may colonize marine, brackish or fresh waters wherever conditions of light, temperature and nutrients are favourable. Cyanobacteria have been largely studied in fresh water systems, due to their ability to proliferate, to  form massive surface scums, and to produce toxins that have been implicated in animal or human poisoning. Some species of algae may also contain toxins, but incidents where fresh water algae are at the origin  of cases of human or animal illness have very seldom been reported. Coloured toxic tides caused by algal overgrowth have been known to exist for many centuries. In fact the Bible (Exodus, 7: 20-24) states all the water of the Nile river became red as blood and fish which were in the river died. And the river was poisoned and the Egyptians could not drink its waters. Algal blooms were observed in 1638 by fishermen in north west of Iceland. Fjords were reported to be stained blood red and during the night produced a kind of phosphorescence. The fishermen thought that the colours could be due to the blood of fighting whales or to some marine insects or plants (Olafsson and Palmsson, 1772). The first scientific report of domestic animals dying from poisoning as a consequence of drinking water that was affected by a blue/green algae  bloom was in 1878 in lake Alexandrina, Australia. In coastal and estuarine systems, however, where  conditions are less favourable to the proliferation of  cyanobacteria, which need oligo-elements such as iron, toxic algae such as dinoflagellates have been observed and have been at the origin of health  troubles. There is growing evidence that nutrients,  especially nitrogen, favour the duration and frequency  of such toxic blooms, and concentrations of toxin in  the cells. Health effects linked to toxins of cyanobacteria in  fresh waters Some cyanobacteria have the capacity to produce  toxins dangerous to human beings. Toxins can be  found either free in the water where the bloom occurs  or bound to the algal or cyanobacterial cell. When the  cells are young (during the growth phase), 70 to 90%  of the toxins are cell bound, whereas when the cells Cyanobacteria have been largely studied in fresh  water systems, due to their ability to proliferate, to  form massive surface scums, and to produce toxins  that have been implicated in animal or human poisoning. Some species of algae may also contain toxins,  but incidents where fresh water algae are at the origin  of cases of human or animal illness have very seldom  been reported. Coloured toxic tides caused by algal overgrowth have been known to exist for many centuries. In fact the  Bible (Exodus, 7: 20-24) states all the water of the  Nile river became red as blood and fish which were in  the river died. And the river was poisoned and the  Egyptians could not drink its waters. Algal blooms were observed in 1638 by fishermen in  north west of Iceland. Fjords were reported to be stained  blood red and during the night produced a kind of  phosphorescence. The fishermen thought that the  colours could be due to the blood of fighting whales or  to some marine insects or plants (Olafsson and Palmsson,  1772). The first scientific report of domestic animals  dying from poisoning as a consequence of drinking  water that was affected by a blue/green algae  bloom was in 1878 in lake Alexandrina, Australia. In coastal and estuarine systems, however, where  conditions are less favourable to the proliferation of  cyanobacteria, which need oligo-elements such as  iron, toxic algae such as dinoflagellates have been  observed and have been at the origin of health  troubles. There is growing evidence that nutrients,  especially nitrogen, favour the duration and frequency  of such toxic blooms, and concentrations of toxin in  the cells. Health effects linked to toxins of cyanobacteria in  fresh waters Some cyanobacteria have the capacity to produce  toxins dangerous to human beings. Toxins can be  found either free in the water where the bloom occurs  or bound to the algal or cyanobacterial cell. When the  cells are young (during the growth phase), 70 to 90%  of the toxins are cell bound, whereas when the cells fresh waters. People may be exposed to toxins  through the consumption of contaminated drinking  water, direct contact with fresh water or the inhalation  of aerosols. Toxins induce damage in animals and  humans by acting at the molecular level and consequently  affecting cells, tissues and organs (Table 3). The nervous, digestive, respiratory and cutaneous  systems may be affected. Secondary effects can be  observed in numerous organs. Age or physiological  conditions of the affected individual may determine the  severity of the symptoms. A variety of symptoms,  depending on the toxins implicated, are observed  such as fatigue, headache, diarrhoea, vomiting, sore  throat, fever and skin irritations. Cyanotoxins can be classified into three groups: à ¢Ã¢â€š ¬Ã‚ ¢ Hepatotoxins. These are the most frequently observed cyanotoxins.  Experiments using mice indicate that they cause liver  injury and can lead to death from liver haemorrhage  and cardiac failure within a few hours of exposure at  acute doses. Chronic exposure induces liver injury  and promotes the growth of tumours. Questions remain concerning the effects of repeated  exposures to low levels of toxins. Animal experiments  have shown liver injury from repeated oral exposure to  microcystins, the most frequently observed cyanotoxins. It is thought that the high prevalence13 of liver  cancer observed in some areas of China could be due  to the presence of microcystins in water supplies. à ¢Ã¢â€š ¬Ã‚ ¢ Neurotoxins. These are generally less common and act on the nervous  system. In mice and aquatic birds, they cause  rapid death by respiratory arrest, sometimes occurring  in a few minutes. à ¢Ã¢â€š ¬Ã‚ ¢ Dermatotoxins. These induce irritant and allergenic responses in tissues  by simple contact. The global toxicity of a cyanobacterial proliferation is  not constant in time or space, making it difficult to  assess the health threat although some acute poisonings  have led to death (Tables 3 and 4). The release of cyanotoxins in water has been at the  origin of several outbreaks affecting animal or human  health (Case studies p. f12). About 75% of cyanobacterial  blooms are accompanied by toxin production. The presence of cyanobacterial toxins after potabilization  treatment represents a health threat for patients  undergoing renal dialysis treatment. Monitoring of eutrophication   Monitoring is useful if it is performed for a purpose. The main reasons for monitoring a water body for  eutrophication are: à ¢Ã¢â€š ¬Ã‚ ¢ To prevent the occurence of eutrophication; à ¢Ã¢â€š ¬Ã‚ ¢ Early warning purposes. Public health authorities  need to know when eutrophication is likely to start in  order to allow them to implement preventive actions; à ¢Ã¢â€š ¬Ã‚ ¢ To know the level of development of the process, and have a precise picture of the quality of the water. This is mostly relevant for water companies, which  have to deal with eutrophic waters; à ¢Ã¢â€š ¬Ã‚ ¢ Research. The reality is that monitoring systems are often multipurpose. Monitoring and management  of cyanobacterial growth in fresh waters  for public health purposes Chorus and Bartram (1999) have proposed the following  monitoring and management scheme to water  treatment plant operators and managers as an alert  level framework. It provides a graduated response to  the onset and progress of a cyanobacteria bloom. This tool initially comes from Australia. Three response  levels are defined: à ¢Ã¢â€š ¬Ã‚ ¢ Vigilance Level is defined by the detection of one colony, or five filaments, of a cyanobacterium in a 1 ml  water sample. When the Vigilance Level is exceeded,  it is recommended that the affected water body is  sampled more frequently at least once a week, so  that potentially rapid changes in cyanobacteria biomass  can be monitored. à ¢Ã¢â€š ¬Ã‚ ¢ Alert Level 1 is initiated when 2,000 cyanobacterial  cells per ml or 0.2 mm3/l biovolume23 or 1 ÃŽÂ ¼g/l chlorophyll- a24 are detected. Alert Level 1 condition  requires an assessment to be made of the total toxin  concentration in the raw water. A consultation should  be held with the health authorities for on-going  assessment of the status of the bloom and of the suitability  of treated water for human consumption. Monitoring  should be conducted at least once per week. It may also be appropriate at this time to issue advisory notices to the public through the media or other means. Government departments or interested authorities or those with legal responsibilities should also be contacted, as should organizations that treat or care for members of the public with special needs. à ¢Ã¢â€š ¬Ã‚ ¢ Alert Level 2 is initiated when 100,000 cells per ml or 10-mm3/l biovolume or 50 ÃŽÂ ¼g/l chlorophyll-a are detected, with the presence of toxins confirmed by chemical or bioassay techniques. This density of cells corresponds to an established, toxic bloom with high biomass and possibly also localized scums. In this situation there is a need for effective water treatment systems and an assessment of the performance of the system. Hydro-physical measures to reduce cyanobacteria growth may still be attempted. If efficient water treatments are not available (see technical annex), a contingency water supply plan should be activated. In extreme situations, safe drinking water should be supplied to consumers in tanks and bottles. Media releases and contact with consumers should be undertaken via mail of leaflets informing that water may present danger for human consumption but is still suitable for the purposes of washing, laundry and toilet flushing. National water quality monitoring programs Few national water quality monitoring programmes include parameters which indicate eutrophication or a risk of algal or cyanobacterial overgrowth. In Europe, North America, Japan and Australia, local monitoring plans which check the occurrence of toxic species in areas where shellfish or fish are consumed, are implemented. This is based on sampling at strategic points and analysis of phytoplankton and/or shellfish. The frequency of sampling generally depends on the sea- son. Table 6 summarizes the monitoring systems in some EU Member States. They only allow the monitoring of toxic blooms, which are only a part of the eutrophication consequences. Technologies such as satellite imaging can be used to monitor large water bodies. The same technique can be applied to monitor the extent of high chlorophyll-a concentrations reflecting the phytoplankton biomass of the upper layers of the eutrophic area. Possible parameters used for monitoring purposes According to the definition of eutrophication, it is clear that formulae such as an increase of x grams of bottom macrophytes per square meter or y micrograms chlorophyll-a per litre are not suitable to define a threshold, which, when exceeded, will describe eutrophication. Such unique parameter does not exist. Moreover, in order to define the magnitude of eutrophication, two measurements are required: That of the system in its reference conditions, and in its current or predicted future condition. As baseline data for a site is the exception rather than the rule, this makes it difficult to test eutrophication using a case-by-case approach. Nevertheless, as the first signs of adverse eutrophication is a decrease in the oxygen concentration in the lower layers of the water body of stagnant waters, and an increase in pH due to photosynthesis (CO2 depletion), these parameters, together with direct microscopic observations, are likely to be the only ones that can help forecast the likelihood of the start of such a process as long as a model integrating physical conditions, nutrient inputs and biological effects has not been locally validated. Prevention25,26 The causes that drive eutrophication are multiple and the mechanisms involved are complex. Several elements should be considered in order to assess the possible actions aimed at counteracting nutrient enrichment of water supplies. The use of computerised models now allows a better understanding of the role of each factor, and forecasting the efficiency of various curative and preventive measures. The best way to avoid eutrophication is to try to disrupt those mechanisms that are under human control; this clearly means to reduce the input of nutrients into the water basins. Such a control unfortunately does not have a linear effect on the eutrophication intensity. Integrated management should comprise: à ¢Ã¢â€š ¬Ã‚ ¢ Identification of all nutrient sources. Such information can be acquired by studies of the catchment area of the water supply. Knowledge of industrial activities, discharge practices and localization, as well as agricultural practices (fertilizer contribution/plant use and localization of crops) is necessary in order to plan and implement actions aiming at limiting the nutrient enrichment of water. The identification of sewage discharge points, agricultural practices, the nature of the soil, the vegetation, and the interaction between the soil and the water can be of great help in knowing which areas should be targeted. à ¢Ã¢â€š ¬Ã‚ ¢ Knowledge of the hydrodynamics of the water body, particularly the way nutrients are transported, and of the vulnerability of the aquifer, will allow determination of the ways by which the water is enriched with nutrients. Anthropogenic nutrient point sources such as nontreated industrial and domestic wastewater discharge can be minimized by systematic use of wastewater treatments. In sensitive aeras, industries and local authorities should control the level of nutrients in the treated wastewater by the use of specific denitrification or phosphorus removal treatments. Diffuse anthropogenic nutrient sources can be controlled by soil conservation techniques and fertilizer restrictions. Knowledge of the agronomic balance (ratio of fertilizer contribution to plant use) is very relevant to optimize the fertilization practice and to limit the loss of nutrients. Diffuse nutrient losses will be reduced by implementation at farm level of good practices such as: à ¢Ã¢â€š ¬Ã‚ ¢ Fertilization balance, for nitrogen and phosphorus, e.g. adequation of nutrients supply to the needs of the crop with reasonable expected yields, taking into account soil and atmospheric N supply. à ¢Ã¢â€š ¬Ã‚ ¢ Regular soil nutrients analysis, fertilization plans and registers at plot level. à ¢Ã¢â€š ¬Ã‚ ¢ Sufficient manure storage capacities, for spreading of manure at appropriate periods. à ¢Ã¢â€š ¬Ã‚ ¢ Green cover of soils during winter, use of catchcrops in crop rotations. à ¢Ã¢â€š ¬Ã‚ ¢ Unfertilized grass buffer strips (or broad hedges) along watercourses and ditches. à ¢Ã¢â€š ¬Ã‚ ¢ Promotion of permanent grassland, rather than temporary forage crops. à ¢Ã¢â€š ¬Ã‚ ¢ Prevention of erosion of sloping soils. à ¢Ã¢â€š ¬Ã‚ ¢ Precise irrigation management (e.g. drip irrigation, fertilisation, soil moisture control). In coastal areas, improvement in the dispersion of nutrients, either through the multiplication of discharge points or through the changing of their localization, can help to avoid localized high levels of nutrients. Reuse and recycling, in aquaculture and agriculture, of waters rich in nutrients can be optimized in order to avoid discharge into the water body and direct consumption of the nutrients by the local flora and fauna. Water resources are environmental assets and therefore have a price. There are market-based methods to estimate costs and benefits, and these make it possible to use cost- benefit analysis as a useful tool to assess the economic effects of abatement of eutrophication or other pollution problems. Benefits range from higher quality drinking water and reduced health risks (Photo 29) to improved recreational uses (Photo 30). The effects on human health from the lack of sanitation and the chronic effects of toxic algal blooms are two of the many indirect effects resulting from eutrophication. Numerous cost-benefit analyses of pollution abatement have clearly demonstrated that the total costs to society of no pollution reduction is much higher than at least a reasonable pollution reduction. Consequently, it is necessary to examine the prevention of pollution and restoration of water quality in lakes and reservoirs from an economic standpoint. The result of such examinations should be appli ed to assess effluent charges and green taxes. International experience shows that these economic instruments are reasonably effective in improving water quality and solving related water pollution problems. Thus, effective planning and management of lakes and reservoirs depends not only on a sound understanding of these water-bodies as ecological systems but also of their value to people as recreational areas and water resources. In the past, several management strategies were developed and applied to solve problems of decreasing surface and groundwater quality. These were often a response to acute critical situations resulting in increased costs of water. The demand for good quality fresh water was only solved partially and locally; this was because too few resources were allocated too late to solve the problems. Early prevention is by far the cheapest method to avoid later pollution. Eutrophication Management Recognizing that the specific needs of policy-makers and administrators are usually different from those of the strictly technical audience, the primary purpose of this digest is to provide quantitative tools for assessing the state of eutrophication of lakes and reservoirs; to provide a framework for developing cost-effective eutrophication management strategies; to provide a basis upon which strategies can be tailored for each specific case according to the physical, social, institutional, regulatory and economic characteristics of the local area or region; and to provide specific technical guidance and case studies regarding the effective management of eutrophication. The approach presented in this document (Figure 1) also is sufficiently general that it can be applied, with relative little modification, to the assessment of other environmental problems and to the development of effective management strategies for such problems. An approach for achieving the basic objectives stated above consists of the following components, applied approximately in the order presented: identify eutrophication problem and establish management goals; assess the extent of information available about the lake/reservoir; identify available options for management of eutrophication; analyze all costs and expected benefits of alternative management/control options; analyze adequacy of existing institutional and regulatory framework for implementing alternative management strategies; select desired control strategy and distribute summary to interested parties prior to implementation; and provide periodic progress reports on control programme to public and other interested parties. designation of bad (unacceptable) versus good (acceptable) water quality in this digest is based on the specific intended use or uses of the water resource. That is, water quality management goals for a lake or reservoir should be a function of the major purpose(s) for which the water is to be used. Obviously, there are water quality conditions to be avoided because of their interference with water uses. Ideally, for example, a lake or reservoir used as a drinking water supply should have water quality as close to an oligotrophy state as possible, since this would insure that only a minimum amount of pre-treatment would be necessary to yield a water suitable for human consumption. For such a waterbody, the content of phytoplankton (and their metabolic products) in the water should be as low as possible to facilitate this goal. Further, if the water is taken from the bottom waters of a lake during the summer (usually the period of maximum algal growth), it should be free of interferring substances resulting from decomposition of dead algal cells. Eutrophic lakes and reservoirs also could be used as a drinking water supply. However, extensive pre-treatment would be necessary before the water was suitable for human consumption. Some water uses may require no treatment at all, regardless of the existing water quality. Examples are fire-fighting purposes and the transport of commercial goods by ship. Further, in areas with extremely limited water resources, virtually all of the water may be used for various purposes (with or without treatment), regardless of its quality. Therefore, although humans can use water exhibiting a range of water quality, there is a desirable or optimal water quality for virtually any type of water usage. Though it is not quantitative in nature, a summary of intended water uses and the optimal versus minimally-acceptable trophic state for such uses is provided in Table 3. In addition, an example of the values of several commonly measured water quality parameters corresponding to different trophic conditions, based on the international eutrophication study of the Organization for Economic Cooperation and Development (1982), is provided in Table 4. Thus, it is possible to identify acce ptable or optimal water quality for given water uses. Given these factors, a prudent approach in setting eutrophication management goals is to determine the minimum water quality and trophic conditions acceptable for the primary use or uses of the lake or reservoir (Table 1), and attempt to manage the water body so that these conditions are achieved. In a given situation, if the primary use or uses of a waterbody is hindered by existing water quality, or else requires water quality or trophic conditions not being met in the waterbody, this signals the need for remedial or control programmes to achieve the necessary in-lake conditions. 21 the problem? The governmental role It is recognized that a range of different forms of government, as well as economic conditions, exist around the world. Consequently it is difficult to provide general guidelines regarding the role of the government in environmental protection efforts that will cover all possible situations. However, virtually all nations also contain some type of civil service infrastructure which, if properly used, can be an effective instrument with which to address governmental concerns. Even so, as noted earlier, not all

The Working Principle of Milling Machines

The Working Principle of Milling Machines In previous chapter, the literature review piece and objective of present work has been discussed. This chapter introduces the speculative background of response surface methodology, introduction of milling machine, cutting principal, milling cutter taxonomy, machining parameters, chip thickness formation and milling machine parameters which influence the surface roughness 2.1 BACKGROUND As an central subject in the statistical design of experiments, the Response Surface Methodology (RSM) is a collection of mathematical and statistical techniques useful for the modeling and analysis of harms in which a response of interest is influenced by several variables and the objective is to optimize this response RSM also quantifies dealings among one or more measured responses and the vital input factors. The DOE++ software was used to develop the untried plan for RSM. The same software has also used to analyze the data collected. After analyzing each response, multiple response optimization technique have performed, either by inspection of the interpretation plots, or with the graphical and arithmetic tools provided for this purpose. It has mentioned previously that RSM designs also help in quantifying the dealings between one or more measured responses and the vital input factors. In order to determine if there stay alive a relationship between the factors and the response variables investigated, the data together must be analyzed in a statistically sound manner using regression. A regression is performed in order to describe the data unruffled whereby an observed, empirical variable (response) is approximated based on a functional bond between the estimated variable, yest and one or further regress or or input variable x1, x2,†¦, xi. The least square technique is being new to fit a model equation containing the said regressors or input variables by minimizing the residual error measured by the sum of s quare deviations between the actual and the probable responses. This involves the calculation of estimates for the regression coefficients, i.e., the coefficients of the representation variables including the intercept or constant term. The calculated coefficients or the model equation need to however be tested for statistical implication. 2.2 MILLING MACHINE 2.2.1 Introduction Milling machines was first invented and developed by Eli Whitney to mass construct interchangeable musket parts. Although makeshift, these machines assisted man in maintain exactness and uniformity while duplicating parts that can not be manufactured with the use of a file. Development and improvement of the milling machine and components continuous, which resulted in the manufacturing of heavier arbors and high speed steel and carbide cutters. These components allowed the operator to remove metal more rapidly, and with more accuracy, than prior machines. Variations of milling machines were also developed to perform special milling operations. During this era, computerized machines has been developed to alleviate error and provide better. Milling are perhaps the most versatile machining operation and most of the shapes can be generated by this action. Unlike turning, shaping and drilling tools, the milling tool possesses a large number of cutting edges. Milling is the process of machining flat, curved, or asymmetrical surfaces by feeding the work piece against a rotating cutter containing a integer of cutting edges. The milling machine consists basically of a motor driven spindle, was mounts and revolves the milling cutter, and a reciprocate regulating worktable, which mounts and feeds the work piece. Milling machines are basically classified as vertical or horizontal. These machines is also classified as knee-type, ram-type, manufacturing or bed type, and planer-type. Most milling machines has self-contained exciting drive motors, coolant systems, variable spindle speeds, and power operated table feeds. Milling machines play an significant role in most machine shops, machining metals to various shapes and sizes by means of a revolving cutting tool or tools having a number of cutting edges called teeth. Such tools has known as milling cutters or mills. In order to machine numerous configurations in a milling machine, man have developed various types of milling cutters to fit the necessary requirements. Most milling cutters has made of high speed steel; some employ the utilize of carbide teeth and inserts.[20] The working principle, employed in the metal removing operation on a milling machine, is that the work has rigidly clamped on the board of the machine, or held between centers, and revolving multi-teeth cutter mounted moreover on a spindle or an arbor. The cutter revolves at a fairly high speed and the work fed leisurely past the cutter as shown in figure. The work can be fed in a vertical, longitudinal or cross direction. As the work advances, the cutter-teeth do away with the metal from the work surface to produce the desired shape. [21] Figure2.1: Working Principle of milling operation [21] 2.2.2 Milling Cutter Nomenclature Figure 2.2 shows two views of a common milling cutter with its parts and angles acknowledged. These parts and angles are common to all types of cutters in some form. The pitch refers to the angular distance between like parts on the adjoining teeth. The pitch is unwavering by the number of teeth. The tooth face is the forward facing surface of the tooth which forms the cutting edge. The cutting edge can the angle on each tooth which performs the cutting. The land is the fine surface behind the cutting edge of each tooth. The rake angle is the viewpoint formed between the face of the tooth and the centerline of the cutter. The rake angle defines the cutting edge and provides a path for chips that have cut from the work piece. The primary clearance angle is the viewpoint of the land of each tooth, measured from a line tangent to the centerline of the cutter at the cutting edge. This angle prevents every one tooth from rubbing against the work piece after it makes its cut. The secondary go-ahead angle defines the land of each tooth and provides supplementary clearance for the passage of cutting oil and the chips. Figure 2.2: The two views of a common milling cutter with its parts and angles identified. [21] The hole diameter determines the size of arbor that is essential to mount the milling cutter. A keyway was present on all arbor-swelling cutters for locking the cutter to the arbor. Plain milling cutters that has more than 3/4 inch in width can usually made with spiral or helical teeth. A plain spiral-tooth milling cutter produces a better and smoother draw to a close, and requires less power to operate. A plain helix-tooth milling harvester is especially desirable where an jagged surface or one with holes in it have to be milled. The teeth of milling cutters are either right-hand or left-hand, viewed from the back of the machine. Right-hand milling cutters cut when rotate clockwise; left-hand milling cutters cut when rotated counterclockwise. Saw Teeth: Saw teeth are whichever straight or helical in the smaller size of plain milling cutters, metal slitting saw milling cutters, and closing stages milling cutters. The cutting edge is usually given about 5 ° primary clearance angle. Sometimes the teeth have provided with offset nicks which shatter up the chips and make coarser feeds promising. Formed Teeth: Formed teeth can usually specially made for machining unbalanced surfaces or profiles. The possible varieties of formed-tooth milling cutters are more or less unlimited. Convex, concave, and corner-rounding milling nail clippers are of this type. Inserted Teeth: Inserted teeth had blade of high-speed steel inserted and rigidly held in a blank of machine steel or cast iron. unlike manufacturers bring into play different methods of holding the blades in place. Inserted teeth are more cost-effective and convenient for large-size cutters because of their reasonable initial cost and because worn or broken blades has be replaced more easily and at less price tag 2.2.2.1 Recommended Angles for Milling Cutter The angle between the face and the land of the cutter tooth is called lip angle (ÃŽ ²).Its value depends upon the values of rake and relief angles. A larger lip angle ensures a brawny tooth. As such, the endeavor should be to keep it as large as practicable. This is particularly chief while milling harder metals and when deeper cuts to be employed. Cutters having helical teeth are made to contains a helix angle between 10- (degree) and 50- (degree) the recommended values of principal angles are given in the table [19] Table 2.1: Recommended Angles for Milling Cutter [21] Material Recommend values in degree Rake angle(degree) Relief angles(degrees) H.S.S Tools Stellite Tools Cemented carbides Cast iron(Soft) 10-15 6-8 3-6 4-7 Cast iron(Hard) 10 3-6 0-3 4-7 Mild steel 10-15 3-6 0-(-5) 3-5 Aluminum alloys 20-30 10-15 10-20 10-15 Brasses and Bronzes 10-12 5 2-3 10-15 Mg.alloys 20-30 15-20 15-20 10-12 2.2.3 Machining Parameters 2.2.3.1 Selection of Speed The approximate standards given in may be used as a guide for electing the proper cutting speed. If the operator finds that the machine, the milling cutter, or the work piece cannot be handle suitably at these speeds, instantaneous readjustments shouldcan be made. If carbon steel cutters have used; the speed should be about one-partially the recommended speed in the table. If carbide-tipped cutters are used, the speed could be doubled. If a bountiful supply of cutting oil is theoretical to the milling cutter and the work piece, speeds can be increased 50 to 100 percent. For roughing cuts, a moderate speed and coarse feed often give best results; for last cuts, the best practice is to reverse these conditions, by means of a higher speed and lighter feed. The formula for manipulative spindle speed in revolutions per minute is as follows: Where, Spindle speed (in revolutions per minute). Cutting speed of milling cutter. Diameter of milling cutter (in inches) 2.2.3.2 Selection of Feed The rate of feed, or the speed at which the work piece pass the cutter, determines the time obligatory for cutting a job. In selecting the feed, there are several factors which should be well thought-out are as follows: Forces are exerted against the work piece, the cutter, and their property devices during the cutting process. The force exerted varies directly with the amount of metal unconcerned and can be regulated by the feed and the depth of cut. Therefore, the wrong amount of feed and depth of cut have interrelated, and in turn are dependent upon the rigidity and power of the machine. The feed and depth of cut also depend upon the type of milling cutter being used. For example, deep cuts or foul-mouthed feeds should not be attempted when using a small diameter end milling cutter, as such an attempt would spring or break the cutter. Coarse cutters with muscular cutting teeth can be fed at a faster rate because the chips may be washed out more without problems by the cutting oil. The feed of the milling machine may be selected in inches per minute or millimeters per minute the milling feed has determined by multiplying the chip size (chip per tooth) desired, the integer of teeth on the cutter, and the revolutions per minute of the cutter. Example: the formula used to hit upon the work feed in inches per minute Where Feed rate in inches per minute Chip pert tooth Number of teeth per minute of the milling cutter Figure 2.3 shows the path of feed during the cutting operation. It is usually regarded as standard practice to feed the work piece against the milling cutter. When the piece is fed aligned with the milling cutter, the teeth cut under any weighing machine on the work piece surface and any backlash in the feed screw is taken up by the weakness of cut. As an exception to this recommendation, it is advisable to feed with the milling cutter, when cutting off accumulation, or when milling comparatively deep or long slots. The direction of cutter rotation had related to the behavior in which the work piece is held. The cutter should rotate so that the piece springs away from the cutter; then there will be no predisposition for the force of the cut to loosen the work piece. No milling cutter should be rotated toward the rear as this will break the teeth. Never revolutionize feeds while the cutter is rotating. Figure2.3 Direction of Feed during machining operation [21] 2.2.4 Chip Formation in Milling Operation The scheme of chip formation during plain milling using a straight cutter is explained in figure 2.4. The cutter has a diameter and the depth of cut provided by. When milling is done straight-edge cutter, the operation is orthogonal and the kinematics of chip formation is shown in figure 2.4. Since all the cutting edges take part in machining, a study of the process is facilitated by considering the action of only a single tooth. If is the feed velocity of the table in mm/min, the effective feed per tooth in mm will be, where is the cutter rpm and is the number of teeth in cutter. The material removal rate per unit width of the job is given by. It is clearly seen from figure that the thickness of the uncut material in front of cutting edge increases gradually, reaching a maximum near the surface and again drops to zero quickly. If the feed velocity is small as compared with the circumferential velocity of the cutter, then Figure 2.4: Details of chip formation [22] Where is the angle included by the contact arc at the cutter center O in radians. Now, considering the triangle OAT, we have Hence, Neglecting the higher order terms in as it is normally very small. Using this value of in the expression of the maximum uncut thickness, we get It is obvious that when cutting with a straight cutter, there is no component of the cutting force along the straight cutter axis. The average uncut thickness can be taken as half of the maximum value. Thus, From the above equation show that when the depth of cut increases, the chip thickness increases so that increases the cutting resistance and the amplitude of vibrations. As a result, cutting temperature also rises. Therefore, it is expected that surface quality will deteriorate. When the feed rate increases, the chip thickness increases so that increases in cutting force and vibration. 2.3 SURFACE ROUGHNESS PARAMETERS Surface roughness is an chief factor when dealing with issues such as friction, lubrication, and wear. It also have a major impact on application involving thermal or electrical confrontation, fluid dynamics, noise and vibration control, dimensional tolerance, and abrasive processes, among others. The resultant roughness fashioned by a machining process can be thought of as the amalgamation of two independent quantities Ideal roughness: Ideal surface roughness was a function of feed and geometry of the tool. It represents the best promising finish which can be obtained for a given tool shape and feed. It can be achieved only if the built-up-edge, chatter and inaccuracies in the machine tool activities are eliminated completely. For a sharp tool without nose radius, the maximum height of disproportion is given by Rmax = f/(cot φ + cot ÃŽ ²) Here f is feed rate, φ is major cutting edge angle and ÃŽ ² is the inconsequential cutting edge angle. The surface roughness assessment is given by Ra = Rmax/4 Idealized model of surface roughness have been without a doubt shown in Figure 2. 5. Practical cutting tools was usually provided with a rounded corner, and figure shows the surface produced by such a tool under ideal conditions. It can be shown that the roughness assessment is personally related to the feed and corner radius by the following expression: Ra=0.0321 f 2/r Where, r is the corner radius. Figure 2.5: Idealized Model of Surface Roughness [20] Natural roughness: In practice, it is not usually possible to achieve environment such as those described above, and normally the natural surface roughness forms a outsized proportion of the actual roughness. One of the main factors causative to natural roughness is the occurrence of a built-up edge and vibration of the machine tool. Thus, superior the built up edge, the rougher would be the surface produced, and factors tending to reduce chip-tool friction and to eradicate or reduce the built-up edge would give improved surface finish. The Principal fundamentals of surfaces are as follows: Surface: The surface of an object is the boundary which separate that object from another substance. Its shape and extent has usually defined by a drawing or descriptive specifications. Profile: It is the form of any specified section through a surface. Roughness: It was defined as closely spaced, irregular deviations on a scale smaller than that of waviness. Roughness may be superimposed on waviness. Roughness is uttered in terms of its height, its width, and its distance on the surface along which it is precise Waviness: It is a recurrent deviation from a flat surface, much like impression on the surface of water. It is measured and described in terms of the freedom between adjacent crests of the waves (waviness width) and height between the crests and valleys of the impression (waviness height). Waviness can be caused by Deflections are tools, dies, or the work piece, Forces or temperature sufficient to cause warp, Un flush lubrication, Vibration Any intermittent mechanical or thermal variations in the system during Manufacturing operations. Flaws: Flaws, or defects, are random irregularities, such as scratches, crack, holes, depressions, seams, moan, or inclusions as shown in Figure 2.5 Lay: Lay or directionality is the direction of the predominant surface pattern and was usually noticeable to the naked eye. Lay direction have been shown in Figure 2.5 Figure 2.6 Surface Characteristics [20] 2. 3.1 Factors Affecting the Surface Finish Whenever two machined surfaces come in make contact with with one another the quality of the mating parts the stage an important role in the performance and wear of the mating parts. The height, shape, arrangement and track of these surface irregularity on the work piece depend upon a number of factors such as: The machining variables which affect the surface roughness has spiteful speed, feed and depth of cut. The factors of tool geometry which affect to achieve surface draw to a close are nose radius, rake angle, side cutting edge position, cutting edge Work piece and tool material combination and their mechanical property Quality and type of the machine tool new Auxiliary tooling, and lubricant second-hand Vibrations connecting the work piece, machine tool and cutting tool. 2.3.2 Factors Influencing Surface Roughness in Milling Machine The various factors which influence surface roughness of work piece in the milling machine are: Depth of cut: escalating the depth of cut increases the cutting resistance and the amplitude of vibrations. As a result, cutting temperature also rises. Therefore, it has expected that surface eminence will deteriorate. Feed: Experiments show that as feed rate increase surface roughness also increases due to the increase have cutting force and vibration. Cutting speed: It is found that an increase of cutting speed generally improves surface eminence. Engagement of the cutting tool: This factor acts in the same way as the distance downward of cut. Cutting tool wears: The irregularities of the cutting edge due to wear are reproduce on the machined surface. Apart from that, as tool wear increases, other dynamic phenomena such as unwarranted vibrations will occur, thus further deteriorating surface quality. 2.4 CONCLUDING REMARKS In this chapter, the working principal of milling machine is presented. The categorization of milling cutter with its parts and angles are presented. Machining parameters which affect the surface roughness, chip thickness formation and factors influence surface roughness in milling machine are also presented in this chapter.