Claudio Monteverdi :: Composers Renaissance Biographies Essays

Claudio Monteverdi Claudio Monteverdi was born on May 15, 1567, in Cremona Italy, Monteverdi was an Italian composer of the late Renaissance and the Early Baroque, and is known as the first great composer of the operas. Monteverdi is often view as a composer of the Renaissance and of the Baroque, there is a similar pattern in that is continuous that is often viewed through his work in both styles. Monteverdi often was known as a dramatic composer, while bringing a tremendous meaning from the text he set that often turned each of his pieces into a believable musical and also produced a dramatic statement. It was an early age when Monteverdi’s career began, he then published his first pieces, and this was based on as a collection of three-voice motets, at the age of fifteen. It was by 1591, when he went to Mantua as a musician for the Gonzaga court, by then he had already published books of â€Å"spiritual madrigals† in 1583, then another canzonettas in 1584, by 1587 and 1590 he published his first two books of â€Å"madrigals.† It was in Mantua he continued writing madrigals, and then in 1607 he produced his first work in the new genre of opera, the setting was of Orfeo. 1613, he was then appointed maestro di cappella at ST. Mark’s Cathedral which was held in Venice. Monteverdi had remained in Venice for the rest of his life, writing music in all different kinds of genres, including his final opera, â€Å"incoronaszione di Poppea in 1642. The style that Monteverdi intended to write in was called seconda prattica, this was a description that he used to separate himself for what was known as the more conservative tradition of Palestrina and his â€Å"Contemporaries.† The main starting point for Monteverdi was the always the words. Whatever his mood was at the time and what the words might suggest, and or whatever a one word needed to express, was mainly reflected on his music. Throughout the century, this was the basic idea of word content; this painting was used in madrigals through out the century. Due to the fact that his music expressed different moods of styles, for Monteverdi it was however isolated effect, and a guiding force. â€Å"This ideal permeated his madrigals and found new expression in the dramatic language or opera.† All Monteverdi’s techniques of work altogether made Monteverdi one of the expertise in the field of Western music.

Botulism Is A Rare Gastrointestinal Infection Biology Essay

Botulism is a rare GI infection, it is a serious status caused by toxins from bacteriums called Clostridium Botulinum. Clostridium Botulinum are a species of anaerobiotic, Gram-positive, rod shaped bacteriums in the household Clostridiaceae that produces proteins with features neurotoxicity. The botulinus toxin is a powerful neurolysin that impairs nerve map, including those of the stop, taking to palsy. It is the etiologic agent of botulism in worlds, wild poultry, Equus caballuss and cowss. There are seven subtypes of these bacteriums, each bring forthing a different Botulinum Toxin. The being and its spores are widely distributed in nature. They can be found in dirt, deposits of watercourses and lakes, and in the enteric piece of lands of fish and mammals. Clostridium botulinus interferes with the presynaptic release of acetylcholine at the neuromuscular junction. Acetylcholine is a neurotransmitter found at neuromuscular junctions, autonomic ganglia, parasympathetic effecter junctions, and at many other sites in the CNS. Acetylcholine enables musculus contraction hence without it musculuss will non contract. The stop enables take a breathing hence without acetylcholine the infected animate being will decease of respiratory failure and asphyxia. Clinical characteristics include abdominal hurting, emesis, acute palsy, blurred vision, and double vision. There are eight types of botulism. They are: A, B, CI ± , CI? , D, E, F, and G. Out of the eight merely three of them are associated with human disease. They are A, B, E and F. A, and B are foodborne related potent strains. It was foremost recorded in Europe in 1735 and it was suspected of being associated with a German sausage, hence being named after the Latin word for sausage, â€Å" botulus † . Several states produced botulism toxins in the WWII as a possible bacteriological arm. They were said to hold trial sprayed over a subdivision of Canadian wilderness killing all animate beings within 6 hours but they were ne'er used in combat. The bacterium itself is non toxic when ingested and are normally consumed on fruits, veggies and seafood. The German doctor and poet Justinus Kerner foremost developed the thought of a possible curative usage of botulinus toxin. In 1870, another German doctor, Muller, coined the name botulism. In 1895, Professor Emile Van Ermengem, of Belgium, was the first to insulate the bacteria. In 1928, Dr Herman Sommer, at the University of California, was the first to insulate in purified signifier the toxin type A ( BoNT-A ) as a stable acid precipitate. Dr Edward J Schan tz succeeded in sublimating BoNT-A in crystalline form-cultured C blotulinum and isolated the toxin in 1946. In the 1950 ‘s, Dr Burgen ‘s ASV group discovered that blotulinum toxins blocks neuromuscular transmittal in 1949. Dr Vermon Brooks discovered that when BoNT-A is injected into a overactive musculus, it blocks the release of acetycholine from motor nervus terminations. Dr Alan B Scott, of Smith-Kettlewell Eye Research Institute used BoNT-A in monkey experiments in 1973, and in 1980 he used if for the first clip in worlds to handle squint. The incubation period of botulism is 12-80 hours. It can be obtained through inspiration of toxin, ingestion of toxin or C botulinus spores, and taint of a tissue with toxin or C botulinus spores. Signs and symptoms have six presentations. The central marks include afebrile ( holding no febrility ) ; symmetrical neurological manisfestations ; normal mental position, though may look lethargic and have trouble with communicating ; normal to decelerate bosom rate without presence of hypotension ; and normal centripetal nervus map, other than vision. The early presentations include: cranial abnormalcies, weariness and dizziness, dual and bleary vision, and trouble get downing nutrient. The ulterior presentation include ; falling palsy, trouble traveling eyes and mild pupillary dilation, lingua failing, lessening joke physiological reaction, indistinct address, symmetrical falling progressive muscular failing particularly on weaponries and legs, utmost failing on postural cervix musculuss and occasional oral cavity external respiration, and irregularity. Ingestional presentation include: dry oral cavity and dysarthria, and sickness and emesis. Inhalational presentation include: mucous secretion in pharynx, and serous nasal discharge, salivation. Last the infant presentation include: inability to suck and get down, irregularity, weakened voice and floppy cervix. There are five chief sorts of botulism. They are foodborne botulism, wound botulism, infant botulism, adult enteric toxemia of pregnancy botulism, and iatrogenic botulism. Even though botulism bacteriums are common in nature, they can be killed by O. Thereof, the bacteriums signifier spores that protect them from the O. Once on an oxygen-free environment the spores activate. The most common manner to acquire botulism is from improperly canned nutrient. When the can is sealed it creates an oxygen-free environment suitable for the bacterium. If heated decently the spores dies but if non heated decently, the spores activate and the can is filled with toxin, botulismotoxin. Since botulismotoxin is a protein it can be denatured by heat, nevertheless canned nutrient is largely eaten cold botulism occurs. Affected persons have trouble swallowing or speech production, dry oral cavity, facial failing on both sides of the face, blurred or dual vision, saging palpebras, problem external respira tion, sickness, purging and abdominal spasms, and palsy. Babies usually obtain botulism from honey in a assortment of ways. When roll uping nectar from flowers, bees collect botulism spores and blend them into the honey. Most grownups can eat these spores without trouble since the bacteriums within the organic structure robust the immune system which eliminates the spores. Since babies still do non hold these bacterial defense mechanisms the spores come to life when they reach the intestine oxygen-free environment. While inside of the babe they produce toxin. This typically occurs between the ages of 2 and 6 months. Complications arise usually within 18 to 36 hours after the toxin enters the babe ‘s organic structure. Signs and symptoms include: irregularity, floppy motions due to muscle failing and problem commanding caput, weak call, crossness, salivating, saging palpebras, fatigue, trouble suction or eating, and palsy. Wound botulism is the consequence of lesions contaminated with C botulinus spores. It develops traumatic hurt that involves soil taint among injection drug users ( those who use black-tar diacetylmorphine ) and after a cesarean bringing. The lesion may look benign. The involved tissues which are traumatized and devitalized provide a perfect anaerobiotic medium for the C botulinus spores to shoot into vegetive beings and produce neurolysins. The symptoms normally appear 4 to 18 hours after an hurt occurs and are similar to food-borne botulism although GI symptoms may be absent. They include: trouble get downing or speech production, facial failing on both sides of the face, blurred or dual vision, saging palpebras, problem external respiration, and palsy. Adult enteric toxemia of pregnancy ( big enteric colonisation ) botulism is a really rare sort of botulism that occurs among grownups by the same path as infant botulism. The exact prevalence of AITB is unknown. To day of the month, about 20 instances have been reported. The disease affects grownups and older kids. Features include unknown beginning of toxin, presence of toxin in stool, and unnatural GI pathology ( e.g. , Billroth surgery, Crohn ‘s disease, and peptic ulcer disease ) or antimicrobic drug usage. Last, iatrogenic botulism can happen from inadvertent overdose of botulinus toxin. It has been noted really seldom after medical usage or abuse of the botulinus toxin. Injectable toxins are used to handle a scope of spastic and autonomic muscular upsets. These toxins are purified and extremely diluted. Toxin type A ( Botox ) is used in highly infinitesimal doses for the intervention of facial furrows and blepharospasm ( an unnatural contraction or vellication of the palpebra ) , cervical dystonia squint ( an chronic painful neurological upset characterized by loss of control over one or more parts of the organic structure ) , glabellar lines ( are the perpendicular lines on the human face and are seeable when a individual scowl ) , and primary alar hyperidrosis ( inordinate perspiration ) . Toxin type B ( Myobloc, Neurobloc ) is used to handle cervical dystonia. The diagnosing of this infection can be slippery because symptoms mimic those presented by other diseases. Sepsis ( whole organic structure redness ) is the most common initial diagnosing for infant botulism. Lab trials are used for unequivocal diagnosing. Analysis of blood, stool or puke for grounds of the toxin may assist in the verification of the infection. Treatment includes the usage of drugs, respiratory support, surgery, and stomachic lavage. Adults with botulism are treated with an antitoxin. The antitoxin is effectual against toxins types A, B and E and inactivates merely the toxin that is unattached to steel terminations. For babies, BIG ( botulism immune globulin ) is available neutralizing A, B, C, D, and E before they can even adhere to nervousnesss. Infant intervention normally involves respiratory support and tubing eating for hebdomads even months. Physical therapy is initiated one time the babe can take a breath unaided. A inhalator is frequently required to assist grownup patients breathe, and a tracheotomy may besides be necessary. Surgery may be necessary to clean an septic lesion and take the beginning of the bacteriums. Antimicrobial therapy may be necessary. In stomachic lavage, psychotherapeutic agents or clysters are used. Vaccines against botulism do non be nevertheless scientist have successfully vaccinated mice and ducks against type C and D, which may assist in the creative activity for human inoculation. The toxin can non be seen, smelled or tasted so the wisest thing to make is to fling any nutrient that seems spoiled without savoring it.

Assisted Suicide Should Be Legal - 909 Words

The Suicide Debate Does a suffering person have the right to end their own life? That is the main debate behind assisted suicide. Assisted suicide is a very secretive, but surprisingly available option for people who are suffering. The documentary The Suicide Plan is largely presented from the point of view of the people who believe assisted suicide should be legal. The documentary takes us inside the hidden world of assisted suicide, as seen through the eyes of the people considering it. Assisted suicide is only legal for terminally ill patients in the states Oregon and Washington. Individuals in other states who consider assisted suicide are generally suffering terminally ill patients who want the same equal opportunity. There are many organizations that people can reach out to for information about the requirements, the step-by-step process, and what to expect. The organizations have very specific guidelines for their client and patients have to understand that they will be killing themselves. Organ izations are not physically involved in the suicide, they do not provide any drugs or materials, and very carefully confirm the individual’s understanding. The organizations help people decide if suicide is the right option for them and are there through out the whole process to support the individual and their families. One of the many issues for debate is whether these organizations are aiding the suicides. But the laws banning assisted suicide are so vague that â€Å"assisting†Show MoreRelatedAssisted Suicide Should Be Legal986 Words   |  4 Pagesphysician assisted suicide should be legal I all fifty states because people should be able to determine when they are ready to end their life, but only in certain limited circumstances. Physician assisted suicide, also known as PAS, is suicide committed with the help of a physician. Another name for assisted suicide is euthanasia, which is the painless killing of a patient suffering from an incurable and painful disease or in an irreversible coma. Euthanasia is different from assisted suicide becauseRead MoreAssisted Suicide Should Be Legal Essay1490 Words   |  6 PagesThe process of assisted suicide, or physician-assisted death, is a hotly debated topic that still remains at the forefront of many national discussions today. Assisted suicide can be described as the suicide of patient by a physician-prescribed dose of legal drugs. The reason that this topic is so widely debated is that it infringes on several moral and religious values that many people in the United States have. But, regardless of the way that people feel, a person’s right to live is guaranteedRead MoreAssisted Suicide Should Be Legal2265 Words   |  10 PagesAssisted Suicide should be made legal, as many people suffer from diseases that aren’t always curable, and it doesn t make sense to let them go through all that pain, and also for some families that have financial struggles paying for their medical bill. This controversial debate is whether or not assisted suicide or mercy killing should be legal and whether or not doctors should be allowed to help patients kill themselves or give guidance on how to. People argue that assisted suicide should beRead MoreAssisted Suicide Should Be Legal1130 Words   |  5 Pagesdebate behind assiste d suicide. Assisted suicide is a very secret, but surprisingly available option for suffering people. The documentary The Suicide Plan focuses on the people who believe assisted suicide should be legal. The documentary takes us inside the hidden world of assisted suicide, as seen through the eyes of the people considering it. Assisted suicide is only legal for terminally ill patients in Oregon and Washington. Individuals in other states who consider assisted suicide are generallyRead MoreAssisted Suicide Should Be Legal2253 Words   |  10 PagesAssisted Suicide should be made legal because many people suffer from diseases that aren’t always curable, it doesn t make sense to let them go through all that pain and some families have financial struggles paying for their medical bill. This controversial debate is whether or not assisted suicide or mercy killing should be legal, whether or not doctors should be allowed to help patients kill themselves or give guidance on how to. People argue that assisted suicide should be considered legal,Read MoreAssisted Suicide Should Be Legal1761 Words   |  8 Pagesdying a slow and painful death, but assisted suicide could be best option for these patients. Assisted suicide is â€Å"any case in which a doctor gives a patient (usually someone with a terminal illness) the means to carry out their own suicide by using a lethal dose of medication† (Lee and Stingl 1). Some feel that assisted suicide is unnecessary because it is too great of a controversy and will only cause problems in society. However, assisted suicide should be legal in the United States as long as thereRead MoreAssisted Suicide Should Be Legal2030 Words   |  9 Pagesis whether or not assisted suicide should be legalized. In order for people to truly argue and decide whether assisted suicide should be legal they must know the definition. Many people mix up the definition of assisted suicide with euthanasia. There are both arguments for assist ed suicide and against it. When arguing for and against assisted suicide the big argument seems to be whether it is morally right or morally wrong. The question of whether assisted suicide should be legal question what isRead MoreAssisted Suicide Should Be Legal2300 Words   |  10 Pages What is assisted suicide? By definition, assisted suicide is suicide committed with the assistance of another person, usually a physician. This definition has changed slightly from the past. Assisted suicide used to be defined more as when a terminally ill patient would be assisted in their death by a doctor or physician. To some, it is a way to end the pain and suffering of a terminally ill loved one. To others, assisted suicide is considered killing people without giving them a chance. PeopleRead MoreAssisted Suicide Should Be Legal Essay1870 Words   |  8 Pagesyour dog having been through a horrible accident. An accident that should of killed the dog but yet it didn’t. The only opt ions for the dog are to let it suffer or put it down. Now, imagine this happening to a loved one or a family member. What if the loved one wanted their suffering to end? Assisted suicide is the intentional termination of life by a doctor at the request of the person who wishes to die. Assisted suicide should be legal because there are times when the terminally ill can be found inRead MoreAssisted Suicide Should Be Legal1936 Words   |  8 Pagespatients suffer from cancer and tumors, and they endure a lot of pain that they would kill for something to stop the pain. Death is no crime and does no harm to other people. They might feel mental pain, but no physical pain is inflicted. Assisted Suicide should be legal because it is a Civil Right, it can be for terminally ill patients, and it does not harm others. The people of the United States of America have Civil Rights and stated in the Civil Rights the people have the right to die. They mostly

John Beckett s The Glorious Revolution - 971 Words

John Beckett mentions that â€Å"the Glorious Revolution† has been considered a historical event related to the political issues. The main target of this historical event was to create a commercial freedom in Europe. After this revolution was done, trade relations in Europe went up, and the Bill of Rights was also created in 1689. Today, the Bill of Rights is shown and knowns that it was the first building stone for â€Å"the British constitution† because it limited the monarchic power. During the eighteenth century, the period of the Age of Enlightenment is considered â€Å"from 1713 to 1789† because Anthony Pagden states that Europe was like â€Å"a republic of states,† and it was like a union acting together and talking with one voice. The Age of Enlightenment was totally an act of improvement in trade, preventing and thwarting religion related wars, and monarchic rules. E. P. Thompson mentions that â€Å"the first industrial revolution† occu rred in England, and he mentions that there were not many modern things, but there was only a clock making industry. The discoveries of new places, peoples and things also brought the Agricultural revolution, financial improvement, and the Enlightenment and the Scientific progress, and all of these new findings and innovations triggered to form the Industrial Revolution in England. Hence, the Glorious Revolution, the Age of Enlightenment and the Industrial Revolution should be considered as the first historical roots of the European Union because these

Analysis of The One Minute Manager by Kenneth Blanchard...

Analysis of The One Minute Manager by Kenneth Blanchard and Spencher Johnson The One Minute Manager by Kenneth Blanchard, Ph.D. and Spencer Johnson, M.D., seems like a practical simple plan on managing people and there for other areas of one’s life, however I must admit I am a little skeptical. The three philosophies do make sense especially once analogies are used to put them into more simple terms. Being in the work force for more than fourteen years I have witnessed many types of mangers. I have worked for hostile managers, calm caring managers and managers who fit somewhere in between. My skepticism with this theory is simply applying its use. On paper this method sounds great and makes a lot of key points, but again after†¦show more content†¦The â€Å"One Minute Praising† is a pleasant philosophy. As a manager tell the employee up front that they will receive updates on their performance. Give your employee praising every time he or she does some thing right to point them in the direction of the ultimate goal. Specify what they did right and how it made you feel. A moment of silence should then be kept to give off your good feeling. This concept teaches the employee how to praise him or herself. The praising is followed up by a handshake or physical gesture to show you support their success. I agree the more you praise the individual the closer they are to praising themselves. When people feel good about themselves and the work they perform, it makes them want to do better. I could be categorized as one of those people. My performance reviews have always been happy times for me. After going over my review, I find myself on a high for weeks. My boss will then critique me on something that was not done right and I go into â€Å"I don’t care† mode. I get defensive and my attitude reflects in my work. It takes longer for me to accomplish that task and I do not put as much effort into it as when I am feeling good. Giving praise gets people in the routine of praising themselves. I have a habit of patting myself on the back when I feel I have done a good job or figured out a solution to a problem that

Australian Dairy Industry Supply Chain †MyAssignmenthelp.com

Question: Discuss about the Australian Dairy Industry Supply Chain. Answer: Introduction Australia ranks third in the world for dairy production. They earn a farmgate value of $A 3.7 million as they export fifty percent of their dairy products. The country boasts of up to 1.6 million dairy cattle in about 7500 dairy ranches countrywide. The average dairy herd rates up to 220 per pack which sees about 9000 million liters of milk produced on average. Only twenty percent of the produce is drunk as fresh milk, and the rest is manufactured into dairy products like yogurt, cheese among others. While most of the production happens in the southeast region owing to the temperate climate, all states have dairy farms adjacent to towns and city to which the supply dairy produce (Barkema et al., 2015). About the industry The dairy in Australia produces for two markets, which are the domestic, and the international market. In average, 55% of the dairy products in Australia is exported which accounts for 16% of the world dairy global market (Westhoek et al.,2011). The dairy market categorizes into the milk market and the manufacturing market. Though the market milk accounts to 17% of the total milk production, it is the largest domestic food supply providing for up to 40% of the local food market. Cooperatives are dominant in the dairy market with them accounting for 78% of market milk. The main players were: national foods, Parmalat Corporation, and Dairy foods. On the other and the domestic supply, three players dominate chain; supermarkets, the route trade, and the food service chains. Most dominant being the supermarkets and the least is the food service chains which consist of caterers, restaurants, and fast food outlets. The route trade includes convenience stores and small stores which together account for the second sector in the domestic market. These three suppliers are quickly scaling upwards in the local dairy market supply chain (Beggs et al., 2015). Challenges and opportunities The Dairy in Australia has seen a twenty-year low in the production following different factors in the market. Low dairy produces by the past two decades, internal challenges in the largest dairy cooperative and the fluctuation of dairy milk prices to better align with the international price standards (Bjorkhaug et al.,2014). Following these strains, the industry has witnessed the decline in general produce. SWOT analysis Strengths- stability in the export market and the efficiency in production of dairy produce Opportunities- arise in the demand for dairy products in the Asian market, risk management of produce, efficient running of the dairy market Weakness- unpredictability in climatic conditions; purchasing and selling of retail and wholesale products; uncertainty policies and regulations Threats- climatic canes, competitive market; protectionism; input prices Challenges The fluctuation of market prices as seen the effect trickle down the supply chain including the production, processing, export, and manufacturing, retail sectors. These all form the supply chain in the dairy industry. Other factors like changes in the climatic conditions countrywide as seen the country suffer low milk production as the most hit are the temperate region of the country. The urbanization factor also weighs into the scheme of challenges facing the industry seeing as the emissions are polluting the environment. In light of these factors, the adaptation and restructuring of the production stage in the dairy industry are emerging as a challenge to investors (Byrne et al., 2016). The Dairy in recent times has seen regulation in prices, which have set the whole supply chain in the wind. Seeing as the previous market price setters, Murray Goulburn, is currently not leading in price discovery, and benchmarking in the southern region (Featherstone, 2014). The processor, following a contraction in milk supply, has denied it this capacity. In the country the fluctuations in the pricing of milk products has led to the farmers breaking loyalty with the various mill processors as they operate in a more commercial based market for their milk. Opportunities The major opportunities for the dairy industry lie in production factors and the rise in demand for dairy products in the international market. Due to uncertainty in the climatic conditions worldwide, various food-producing systems have found the need to adapt to remain effective in the market. These are majorly dependent on the climate for their production. Australia's key dairy producer, Victoria, has been especially hit by recent rainfall scarcity in the country (Bjornlud et al.,2010). This only emphasizes the need for the dairy producers to start adopting criteria of production that are independent of the climatic conditions in the region. Due to the decrease in milk production and increase in the demand for milk has risen both in the domestic as well as the international markets. The local market has witnessed an increase in consumption of dairy milk to up to nine percent which is a significant shift owing that this is a mature sector. Australians have also changed from the unbranded milk sold in the supermarkets in preference for the branded milk (BEVERLAN, 2010). This response in milk consumption domestically, as favored the dairy industry locally and seen its steady rise over the past twelve months. Recommendations The supply chain as a whole has seen prospects of change as the farmers and the investors alike try to adopt new criteria for production to fill the demand that is arisen in both the domestic as well as the international markets. The demand in the market, however, cannot be met if the supply chain is not properly coordinated. With the major player who is the benchmark in setting the dairy product prices in a hitch, the prices are now determined by the farmer who can control the prices according to their needs. This, however, cannot be beneficial to the chain in general since the prices are not standardized countrywide. The need for cooperatives to re-enter the chain is imperative if the prices are to stabilize. The implementation of the supply chain coordination theory, where all parts share information, materials and financial resources. This coordination will allow benefits to trickle down the supply chain right down to the producer (Stadtler et al.,2015). Conclusion The dairy industry has prospects of growth shortly with the demand for dairy products increased by the day. The production sector, however, needs restructuring in both market orientation and pricing. This way it will allow it to have the market prosperity of the dairy products in the international as well as the local market. This criterion employed will allow it to stabilize the pricing of dairy products and enhance production capacity. References Barkema, H. W., Von Keyserlingk, M. A. G., Kastelic, J. P., Lam, T. J. G. M., Luby, C., Roy, J. P., ... Kelton, D. F. (2015). Invited review: Changes in the dairy industry affecting dairy cattle health and welfare.Journal of dairy science,98(11), 7426-7445. Beggs, D. S., Fisher, A. D., Jongman, E. C., Hemsworth, P. H. (2015). A survey of Australian dairy farmers to investigate animal welfare risks associated with increasing scale of BEVERLAND, M.B., 2010. Can cooperatives build and sustain brands?.Lindgreen, A. et al, pp.137-152. BEVERLAND, M.B., 2010. Can cooperatives build and sustain brands?.Lindgren, A. et al, pp.137-152. Bjornlund, H. and Rossini, P.A., 2010. Climate change, water scarcity and water markets-implications for farmer's wealth and farm succession. production.Journal of dairy science,98(8), 5330-5338 BJRKHAUG, H. and RNNINGEN, K., 2014. Crisis? What Crisis? Marginal Farming, Rural Communities and Climate Robustness: The Case of Northern Norway.International Journal of Sociology of Agriculture Food,21(1). Byrne, T. J., Santos, B. F. S., Amer, P. R., Martin-Collado, D., Pryce, J. E., Axford, M. (2016). New breeding objectives and selection indices for the Australian dairy industry.Journal of dairy science,99(10), 8146-8167 Featherstone, T., 2014. QA with Philip Tracey.Company Director,30(5), p.17 Gereffi, G. and Christian, M.M., 2010. Trade, transnational corporations and food consumption: Stadtler, H., 2015. Supply chain management: An overview. In Supply chain management and advanced planning (pp. 3-28). Springer Berlin Heidelberg.A global value chain approach. Westhoek, H., Rood, T., van den Berg, M., Janse, J., Nijdam, D., Reudink, M., Stehfest, E., Lesschen, J.P., Oenema, O. and Woltjer, G.B., 2011.The protein puzzle: the consumption and production of meat, dairy, and fish in the European Union(No. 500166001). Netherlands Environmental Assessment Agency.

Tensile Test Lab Report Essay Example

Tensile Test Lab Report Paper Introduction The construction materials course is an essential part of civil engineering as the strength of all structures and constructions depends on the material used. The tension test is one of the laboratories which help students develop their knowledge in this course by practice. During the laboratory a Tinnitus Olsen Tension Test equipment was used, and the test samples were from low and high carbon steel and timber with grains parallel and perpendicular to the load. Test equipment and materials The test equipment used during the laboratory is one of the Penchant Materials Testing Machines made by Tinnitus Olsen. This machine can test different types of materials and it is provided with software which gives the opportunity to users to fully control the system. Machine two different types of attachments: the first is to fix the metal samples, and second is to hold timber samples. The rate of loading can be controlled by the software. Brief comments on differences and similarities in each property for the set of materials From the tables above it can be seen that: * Low-carbon steel has the largest load and stress at elastic limit among all materials * High-carbon steel has the largest maximum load and stress among all materials * High-carbon steel has the largest failure load and nominal failure stress among all materials * Low-carbon steel has the largest true failure load among all materials * All properties is larger for timber with grains parallel to the grain rather than for timber with perpendicular to the grain Graphs We will write a custom essay sample on Tensile Test Lab Report specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Tensile Test Lab Report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Tensile Test Lab Report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Stress-strain or load-extension graphs have a different form depending on the structure of material and of these graphs can be divided to two different regions: elastic deformation and plastic. Elastic deformation occurs in the region where the curve behaves linearly and after the removing the load material will return to its initial shape. When the elasticity ends the plastic region begins. In plastic region strain can increase significantly whereas stress increases with smaller increment. If the unloading happens the curve will fall parallel to the elastic region. The Stress-Strain graphs have the same shape as Load-Extension graphs. To prove that the stress-strain curves were sketched for three different types of metal: low-carbon steel, high-carbon steel and aluminum. The data used during plotting the stress-strain graphs is represented in Appendix. The graphs for low- carbon (0. 15%) steel (See Figure 1 2). Figure 2. The stress-strain graph for low-carbon steel It can be seen from the graphs that at the beginning the curve behaves linearly until it reaches approximately 14. Non (See Figure 1). Therefore, this section of the graph can be called the elastic region. Then the plastic region begins, and the curve reaches its maximum point at 15. Ink. After that the load decreases gradually for the bigger increment of extension until the break occurs (at 10. Non). The graphs for High-carbon (0. 4%) steel. Figure 4. The Stress-Strain Graph for High-carbon steel The graph for high-carbon steel is similar to the graph for the low-carbon steel. However, the maximum stress in the graph for high-carbon steel is more by non, and equal to the 19. Non. Also it can be seen that the length of high-carbon steel before the failure is less than for low-carbon steel. The elastic region continues until it reaches 12. Ink, and the plastic region ends when specimen breaks at 16. Ink. The graphs for Aluminum. Figure 6. The Stress-Strain Graph for Aluminum The shape of the curve in the graph is similar to the graphs for the steel. However, it can be noticed that the maximum load for aluminum is much less than for steel. Consequently, the load at elastic limit and fail ure load are also small (5. Ink and 3. Ink respectively). The causes of difference of the graphs will be given in Discussion part. The Figures 7-10 illustrate the tension test for timber samples when the load was applied parallel to the grain. From these graphs it is easy to see that the elastic region is very small for timber. In contrast, the plastic deformation takes the bigger region for the large extension. In addition, the specimens break when the maximum load is applied, and it seems that the failure occurs several times. The cause of this behavior is that all grains do not break at one time. The Figures 11-12 show the load-extension graphs for specimens when the load was applied perpendicular to the grain. It can be seen that the failure occurs at small applied load with comparison to other materials. The elastic regions for these specimens are bigger than for samples parallel to the grain. The extension is very small. The calculation of the mean stress, standard deviation, coefficient of variation and characteristic value The mean stress is the arithmetical average of failure stresses: mom=on 7 Where o is the sum of the failure stresses for timber specimens when the load was applied parallel to the grain, and n is the number of specimens. Amp The standard deviation is the degree of spread about the mean stress and it can be calculated as: so=(o-mom)an (8) Where so is variation, s is the standard deviation and o is the failure stresses. Mama s=9. 44 Amp The coefficient of variation: c=somas 9 The calculated result for coefficient of variation (26. %) for this timber was accurate enough as the coefficient of variation for timber must vary from to 30%. The characteristic stress is: char=mom-KS 10 Where k is the standard deviation multiplication factor, and KS is the margin. There kiss equal to the 1. 64 (1 in 20 failure rate). Discussion Firstly, it was noticed that the properties vary depending on the amount of carbon added to the steel. Adding the carbon increases the strength of steel thereby it makes the steel become more brittle. Therefore, the strain for high- carbon steel is less than for low-carbon one, and the maximum stress of low- carbon steel is less than for high-carbon one. Also as the strain or both low and high carbon steel is more than 5% it can be said that they are ductile materials. Secondly, as the strain for the aluminum specimen is less than 1% it seems that it is brittle material. However, the graphs for brittle materials have a little plastic region or even do not have this region. But there is significant plastic region in the Figure 5. It can be predicted that the main causes of that are the defects in the aluminum specimen and the errors related to the equipment. Thirdly, unlike all other materials the graphs for the timber specimens have upturn before failure. The Figures 7-10 are for the same material as timber with grains parallel to the load; however, these graphs differ from each other. Because all specimens do not have the same structure of grains and have different dimensions, also they can have defects as timber is the natural material. Fourthly, the timber specimens with grains perpendicular to the load are the most brittle among other tested materials. As the grains are not connected strongly the failure load of the specimen is not large. Finally, all of the graphs do not show ideal expectations and the possible sources of error are that the specimens were to fixed properly before the test, the material have the defects (was not homogeneous), reduction of decimal points during calculations and errors of the equipment. Conclusion To sum up, the properties such as elastic limit stress, nominal and true failure stresses, etc. Ere obtained. The graphs of stress versus strain were plotted for each type of metals and the graphs of load versus extension were represented with comments for each specimen. The mean stress, standard deviation, coefficient of variation and characteristic stress were calculated for timber samples with grains parallel to the grain. Also the figures of materials after the allure were sketched. In conclusion, the low-carbon stress is more elastic, and the high-carbon stress is stronger. The timber with grains parallel to the load can hold more load than those with perpendicular.