Saturday, March 7, 2020

Interesting Facts About Metal Alloys

Interesting Facts About Metal Alloys Chances are you often encounter metal alloys in your everyday life in the form of jewelry, cookware, tools, and most other items made of metal. Examples of alloys include white gold, sterling silver, brass, bronze, and steel. Here are some interesting facts about metal alloys. Facts About Common Alloys An alloy is a blend of two or more metals. The blend can form a solid solution or can be a simple mixture, depending on the size of the crystals that form and how homogeneous the alloy is. Here are some distinctive alloys: Although sterling silver is an alloy consisting mainly of silver, many alloys with the word silver in their names are only silver in color. German silver and Tibetan silver are examples of alloys that have the name but dont contain any elemental silver.Many people believe steel is an alloy of iron and nickel, but it consists primarily of iron, carbon, and any of several other metals.Stainless steel is an alloy of iron, low levels of carbon, and chromium. The chromium gives the steel resistance to stain, or iron rust. A thin layer of chromium oxide forms on the surface of stainless steel, protecting it from oxygen, which is what causes rust. However, stainless steel can be stained if you expose it to a corrosive environment, such as seawater. That environment attacks and removes the protective chromium oxide coating more quickly than it can repair itself, exposing the iron to attack.Solder is an alloy used to bond metals to each other. Most solder is an alloy of lead and tin. Special solders exist for other applications. For example, silver solder is used in the manufacture of sterling silver jewelry. Fine silver or pure silver is not an alloy and will melt and join to itself. Brass is an alloy consisting primarily of copper and zinc. Bronze, on the other hand, is an alloy of copper with another metal, usually tin. Originally, brass and bronze were considered to be distinct alloys, but in modern usage, brass means any copper alloy. You might hear brass cited as a type of bronze or vice versa.Pewter is a tin alloy consisting of 85 to 99 percent tin with copper, antimony, bismuth, lead, and/or silver. Although lead is used much less often in modern pewter, even lead-free pewter typically contains a small amount of lead. Lead-free is defined as containing no more than 0.05 percent (500 ppm) lead, which remains appreciable if the pewter is used for cookware, dishes, or childrens jewelry. Facts About Special Alloys These alloys have interesting properties: Electrum is a naturally occurring alloy of gold and silver with small amounts of copper and other metals. Considered by the ancient Greeks to be white gold, it was used as far back as 3000 B.C. for coins, drinking vessels, and ornaments.Gold can exist in nature as a pure metal, but most of the gold you encounter is an alloy. The amount of gold in the alloy is expressed in terms of karats, so 24-karat gold is pure gold, 14-karat gold is 14/24 parts gold, and 10-karat gold is 10/24 parts gold or less than half gold. Any of several metals can be used for the remaining portion of the alloy.An amalgam is an alloy made by combining mercury with another metal. Almost all metals form amalgams, with the exception of iron. Amalgam is used in dentistry and in gold and silver mining because these metals readily combine with mercury.

Thursday, February 20, 2020

Technical Communication Analysis Assignment Example | Topics and Well Written Essays - 1250 words

Technical Communication Analysis - Assignment Example Introduction to Hardware specific organization: Cisco is an American based multinational entity which specializes in the field of networking and internet connections on local and wide area network levels. It also provides solutions to enterprises of different kinds namely businesses, information technology, governmental organizations and various other sectors. The services provided by Cisco are up to the customers’ requirements fulfilling the factors of quality of Service factor, security considerations fulfillment, I.P solutions provision, and various other online resources sharing and connectivity. Differences: While the first paper (Routers) provides technical details, the second one is specialized and focuses on the guidelines to be followed. The clinical document further provides descriptions and stresses on the importance of documented works, records keeping which will facilitate the work in longer run and at the same time bring about more consistency in the working patt ern in health care sector. While one of them is core technical in its outlook, the second one is relatively easy to comprehend even for the ordinary reader, The first paper provides details such as the capacity, the technologies incorporated in each of the router, the range supported by each of the router and other details. The advantages served by each of them and also the shortcomings that each of them may suffer from. The clinical paper talks of the newsletters, magazines, and other periodicals which will serve to promote awareness and provide details about how the clinical sector operates, what possible improvements are possible and what efforts are being undertaken in this regard. The second notable feature of the clinical paper is the formulation of regulation pertinent to the contracts being made and the payers and other stakeholders. The clinical report provides dates on which various regulations were adopted and later on put into effective action for practical applicability in health care domain. Difference is in the form of the type of people who may have made this report. The router based report is pure work of technical experts, while the latter is more of the policy makers’ work. Other notable difference in each of these papers is relevant to the fact that the clinical paper recommends changes and in the policies through its study, while the technical report of routers does not explicitly mention any need for change as such. The clinical paper contains the area of history recording, which is relevant to the patients history, their family, their hereditary diseases if any, such historic event is missing or unaddressed in the routers related paper. Similarities: The similarities are that each provides details as to how they operate and how they facilitate connection establishment as in case of first paper, and the second in case of how to make the health care sector more vibrant. Other similarity in each of them is that of introduction to the field, although the first one is relatively technical, the second one is relatively easily to comprehend. Each of them is made to provide guidelines and the basic know how of each of the sector. Architecture design specialties: The architectural designs contain terms and concepts relevant to its usage and application. While security, customer needs fulfillment, quality

Tuesday, February 4, 2020

AIDS Essay Example | Topics and Well Written Essays - 1000 words

AIDS - Essay Example This disease has been marked as the second most frequent pathological condition across the globe which has highlighted the fact that this condition is not restricted to a particular region but follows a global pattern. It has been labeled as the first most common cause of death in Africa where it has been reported to lead to more than 20 percent of the deaths in this particular region. Following the identification of the disease, it has been known to result in greater than 20 million deaths across the world. International health organizations have noted the severity of the issue and the World Health Organization put forward the fact that 39.4 million people had AIDS or they had a present infection with human immunodeficiency virus in the year 2004 (Davidson et al 2009). The region of Africa has the highest number of people with this disease and 70 percent of the total AIDS patients belong to this region. The United States of America also has a large number of people suffering from th e disease and in the year 2002, it was analyzed that 900,000 residents of the country had the disease. The disease serves as a grave problem in the country as it has been analyzed to be the second life taking reason amongst the males of the age group of 25 to 44 years in the country. Young children are also not spared and in the year 2002, it was found out that 800,000 more children were affected with this pathology which may result due to passing of the virus from the mother to the child during birth or via breast feeding from infected mothers (Robbins et al 2005). Thus it can be seen that a very large number of people are affected with this condition but many people avoid presenting their problems owing to the stigma associated with this condition. Thesis: AIDS is a global problem which affects a large number of people and these people should be helped and societies should be created to assist these individuals. The stigma associated with this condition is unjustified as the patie nts suffering from AIDS are like other patients who require help and assistance to overcome their condition. Support: Jonathon Mann who was the director of the Global AIDS Program of the World Health Organization for this syndrome in the year 1987 already created insight into the stigmatizing aspect of AIDS. He explained that overcoming the social response associated with AIDS was extremely important in tackling the issue of AIDS across the world. This problem associated with the condition of AIDS was again highlighted in the year 2000 by Peter Piot who was the executive director of UNAIDS. The stigma and the way the patients are treated negatively further increases the suffering of the people who have AIDS. These patients avoid coming forward owing to the fact that they might be labeled in a negative manner (Parker 2002). It has been analyzed that the morals of the people who suffer from AIDS are questioned. An incident of a gynecologist who was suffering from AIDS is a very good e xample of this stigma. The doctor was widely publicized in the media and was criticized for risking the health of the patients who might be affected with the disease. A major stigma associated

Monday, January 27, 2020

Irish Free State And The Irish Civil War

Irish Free State And The Irish Civil War The Irish Civil War lasted from the 28 June 1922 to the 24 May 1923. It was a conflict based between two opposing Irish nationalists. One of which was the Provisional government in which supported the idea of Ireland as a free state, the other side being the Republicans which opposed the Anglo-Irish Treaty and wanted Ireland to still be part of the United Kingdom. In the end the war was won by the Free State forces, following under the Provisional government. The results of the civil war left Ireland divided for many decades afterwards and claimed many casualties. One factor which is believed to have been the biggest impact on the uprising of the Irish civil war is the Anglo-Irish Treaty which established Ireland as a Free State. The idea of the treaty arose after the Irish War of Independence, between Irish separatists and the British government, ended after 2 years in 1921. A truce was declared and a treaty was being negotiated. The idea of independence from the UK was after a massacre occurred in Ireland as retaliation to the fall of the British Secret Service in Ireland. Attacks like this turned the Irish against the English and therefore independence was asked for. However instead of creating an independent republic, Ireland had to sign an oath which would only give it the opportunity of freedom to be a self-governing authority within the British Empire with the British monarch as head of state. However at the same time, the treaty that was offered to the Irish also gave opportunity to countries in Ireland to give back its control to the UK within the following month after the treaty was agreed upon. In the end the treaty provided a self-directed Irish state, only in 26 of the 32 countries part of Ireland. Even though, originally, the treaty was greatly appreciated throughout Ireland, it created a split in opinion of government. The countries in the northern region of Ireland didnt agree to the Partition of Ireland from the UK and so with this the Home Rule and the Government of Ireland Act of 1920 were passed. These gave Ireland two different parliaments, each with its own Prime Minister. One was given for the Unionists and the other for the Nationalists. The citizens of six northern countries under the leader of the unionist group voted as part of a referendum for the creation of a Northern Ireland in May 1921. The Northern Ireland was run under a Prime Minister which followed the Unionist belief. The British always expected that the northern region of Ireland would comply with the party of the treaty which gave power and authority back to the British. However the expectancy grew even more certain when Sir James Craig, the PM of Northern Ireland announced during October 1922 that we will have to make the choice either to vote out or remain within the Free State hence showing that he was not with southern Ireland. He later then said that as soon as Northern Ireland is given the opportunity to make a decision it is important that it is made instantly, so to show the world that any decision made came with no hesitation. Eventually, in a written agreement with Britain, Northern Ireland gave back any agreement which they acquired in the treaty and was under the ruling authority of the UK. Afterwards the UK was renamed to The United Kingdom of Great Britain and Northern Ireland to reflect the new ruling. Thus the separation in state due to the treaty was yet the beginning of the civ il war between Northern and Southern Ireland. As a part of the treaty, Ireland was given the right to its own army. At first when the British government was ruling Ireland, the IRA was but a rebellious guerrilla force that was dedicated to the establishment of Irish as a republic. The IRA -Irish Republican Army was the army that fought against the British in the war of independence. However afterwards, the war split the army into two; those that continued their support for the treaty, who then became the first official Irish army, and those that were anti-treaty, those that wanted complete freedom. Due to outrage from some citizens about the fact that the treaty was signed, which to them seemed treacherous; rebellious protest and conflicts arose. In April 1922, the anti-treaty IRA seized control of the Dublin Four-Courts and other key buildings. Gaining some control over what occurred in Ireland. However the actions and rulings that the anti-treaty IRA had produced were seen as unacceptable. At times the government tried to mediate with the IRA to make an agreement on some level rather than having unnecessary tension. However after the IRA made no budge, it then led to the government becoming impatient with dealing with the situation as the power was unbalanced. This then led to the command that the now official Irish Army Pro-treaty IRA was to then bomb the Four-Courts. This succeeding in the sense that it got what the government wanted, which was the IRA out of Dublin. The bombing led to however the aggression and battle of the Irish Civil war. Not only were there disagreements in military, but also voting and opinions of the citizens became a major impact on the governments actions. In Northern Ireland people were starting to become more and more with the treaty, as evident in votes. Yet another example of how the disagreement of the treaty impacted the occurrence of the Irish Civil war. Eventually, the disagreements and battle became a topic of religion. The Irish army on numerous counts attacked Northern Ireland when crossing the military border. They mainly attacked Protestants in the area, thinking they were main people who were against the treaty. Eventually the Protestants in Northern Ireland turned towards the Catholics thinking they were the ones to blame, as to why the IRA had started attacking them in Northern Ireland and started to abolish them from their homes and started to take over their land. As a result the Protestants began to attack the Catholics in the area. This was done so with a great rise in violence and rioting. Even though the violence from the IRA began to decrease with the dawning of the war, the revenge on the Catholics became serious. Because of disagreements about the treaty of Ireland as a free state, and military response and revenge, the Protestants began to then use military attacks on the Catholics killing 257 of them between July 1920 and July 1922. About 11,000 Catholics were forced to leave their jobs in factories due to attacks from Protestant colleagues. The government of Northern Ireland attempted to restore order by trying to set up a police force which was dedicated to making harmony between the Protestants and the Catholics, however this only yet intensified the violence rather than maintaining any form of order. Eventually the police were given the power to imprison people who they thought to be at fault without the need for a trial, due to the special powers act of 1922 and the offences against the state act of 1924. The establishment of Ireland as a free state from Britain had a great impact on the cause of the civil war. Due to dispute and unsettled disagreements, anyone that had an opinion on whether or not the situation at hand should be carried out to allow Ireland to become free or to keep it under British rule, voiced it for whatever consequence. From the beginning of the treaty, there was always a dispute as to whether the independence was one on a national agreement, since from the very start it was believed to be certain that the entire nation wouldnt agree upon the partition. It led to the separation of Ireland into two states. Two states with different opinions and directions in mind for what would happen with Ireland, and what results should be acquired from agreements with Britain and the UK. This led to radicals and desperate matters where the military and rebellious groups did what they thought was necessary to make sure that even though it would lead to other reasons of argument, it will ensure that everyone had an equal voiced opinion. Ireland desired to became a free state, however even though part of it had its own rule, and others received what they wanted as to be under British rule, the misunderstanding and unfortunate events, such as guerrilla attacks and religious attacks, turned the wish to fulfil the establishment of a free state into a battle which didnt allow much freedom within the nation. It turned into a battle between government, military forces, and religion. So the Anglo-Irish Treaty and the Irish state vs. United Kingdom of Great Britain and Northern Ireland, was a great impact in influencing the cause of the Irish Civil war.

Sunday, January 19, 2020

Timken

The Timken Company Top management of Timken hires you as consultants to perform an independent analysis and recommend the best, in your opinion, course of action in the proposed acquisition of the Torrington Company. Your task is to write a report that will address their questions and concerns, in particular: 1. 2. 3. 4. How does Torrington fit with the Timken Company? What are the expected synergies? What is your stand alone valuation of Torrington? What is your with-synergies valuation of Torrington? Should Timken be concerned about losing its investment-grade rating? How do Timken’s financial ratios compare with those of other industrial firms in 2002? How would those ratios change if Timken financed the acquisition with debt? 5. What is the price Ingersoll-Rand is likely to accept? Is Ingersoll-Rand likely to want a cash deal or a stock-for-stock deal? 6. 7. Should Timken go forward with the acquisition at all? If Timken decides to go forward with the acquisition, how should they structure the deal in terms of the price offered and the method of payment? What is the recommended bidding and negotiation strategy? Draw on as many arguments, methods and approaches as possible. Clearly explain all assumptions or judgements you make. Where applicable, refer to relevant theoretical concepts. Please note that even though this is a real business case, it is the quality of your analysis that will be marked, not how well your analysis and recommendation fit the actual subsequent developments.

Saturday, January 11, 2020

Conccussions

Informative speech on Concussions Intro Imagine your head pounding and you don’t know where you are, your eyes are dilated and you can’t remember how or what happened. All of a sudden you’re getting help being carried off by people you can’t recognize. You get to the sideline and they start asking you multiple questions, who are we playing? What’s the score? And you stumble to answer these questions and get them wrong. Then they make you take a seat on the bench and say your done playing and inform you that you have received a concussion. 1st body- what concussions are, causesFirst I would like to discuss what concussions actually are. According to Web MD, a concussion is a type of brain injury that is caused by a blow to the head or body, or another injury that jars or shakes the brain inside the skull. By definition, a concussion is not a life threatening injury but it can cause both short term and long term problems. There most likely arenâ€℠¢t any visible signs of a brain injury when a concussion occurs. Even though it is a minor traumatic brain injury, they are still very serious. It can affect how your brain works for a while.A concussion can result from a fall, sports activities, and even a car accident. Your brain is a soft organ that is surrounded by spinal fluid and protected by your hard skull. The fluid around your brain acts like a cushion that keeps your brain from banging against your skull. If your head or body is hit hard enough though, your brain can collide with your skull and be injured. There are many ways to receiving a concussion; they aren’t just involved with sports. Today there are three different types of grades you can receive for a concussion. A grade 3 concussion is the worst one you can get.According to Center for Disease and prevention, recent data shows that, on average, approximately 1. 7 million people sustain a traumatic brain injury annually. 2nd body-symptoms Now that we have a clear understanding of what a concussion is, let me share some of the symptoms with you. Symptoms of a concussion can range from mild to severe and can last for hours, days, weeks, or even months. E medicine health states some very important concussion symptoms and they are loss of consciousness after any trauma to the head, confusion, headache, nausea or vomiting, or even blurred vision.All of these may not occur when you sustain a concussion though; you could only get one or two of them. You don’t have to pass out to have a concussion either, that’s why they are always difficult to tell if someone has one. There are four main categories that concussion can fit into and they are thinking and remembering, physical, emotional and mood, and sleep. All four of these areas have different symptoms for each of them. 3rd body-treatments/my experience with them/prevention Now that I have discussed symptoms of concussions, let me explain the treatments and preventions.According to MayoClinic rest is the best way to allow your brain to recover from a concussion. Any person who may have had a concussion needs to see a doctor. If a doctor thinks you have a concussion, he or she will ask you multiple questions about the injury. These questions will test your ability to pay attention and your learning and memory. A person who might have a concussion needs to immediately stop any kind of activity or sport. Being active again too soon increases the person’s risk of having a more serious brain injury.It is very important to allow yourself time to get better and to slowly return to your regular activities. Conclusion In conclusion, we have discussed what concussions are, its symptoms, and treatments. Concussions can be prevented in some situations, but not all of them. So the next time you receive a headache from hitting your head, the best thing you can do is call your doctor. Concussions are not something you want to mess with, they are a very serious mat ter and you want to get them treated right away. Thank you. Works cited Webmd. com Emedicinehealth. com Mayoclinic. com Cdc. com