Tuesday, July 23, 2019

The Merchant of Venice and Shylock Offering Essay Example for Free

The Merchant of Venice and Shylock Offering Essay Many different people can be good or bad or might seem good but actually bad or the other way around. In The merchant of Venice by William Shakespeare, shylock, the money lending Jew, is seen more like a villain then a victim. Shylock is a villain because he cares more about his money then he cares about his daughter, he is not merciful towards shylock and hewants a pound of flesh from Antonio for hi revenge. First of all shylock is a villain because he cares more about his ducats then his daughter, Jessica. Shylock cares more about his money then his daughter because when Jessica left home with Lorenzo, that she planned to elope with, shylock was really mad because his daughter left but mostly he was mad because she left with a lot of money and his jewels. This shows that shylock is a villain since he cares more of his money then his family and family should always be more important than money. Solanio is saying what he heard shylock say in the streets: My daughter! O my ducats! O my daughter! Fled with a Christian! O my Christian ducats! Justice! The law! My ducats and my daughter! And jewels-two stones, two rich and precious stones, Stol`n by my daughter! Justice! Find the girl! She hath the stones upon her, and the ducats! In this quotation Solanio is saying to Salerio what he heard shylock saying in the streets of how mad he was of his daughter leaving with all his money. This quote is shylock talking to tubal about Jessica leaving â€Å"I would my daughter were dead at my foot, and/ the jewels in her ears: would she were hearsed at my foot, /and the ducats in her coffin!.(III.i.79-81). Shylock is mad that his daughter left him with his money and would want her to be dead in front of him to get his money and have all her ducats from her coffin. This shows that Shylock is a villain since he would go to the extent to wanting her dead for his ducats. Shylock is also a villain because he was not being merciful towards Antonio. When Shylock wanted his pound of flesh from Antonio shylock was not being merciful he really wanted that pound of flesh from him. Portia disguised as a lawyer even tried to tell shylock to be give mercy but he did not want too. Shylock believed more in the justice but the Christians want mercy. This quote is shylock refusing to the duke of being merciful â€Å" I have possessed your grace of what I purpose,/And by our holy Sabbath have I sworn/ To have the due and forfeit of my bond† shylock I telling to the duke that I will keep my bond and that no matter what this is his bond and he will keep it no one can convince him. Portia and Shylock are discussed about mercy: In this quotation shylock does not want to give mercy to Antonio and Portia says that you cannot receive mercy if you do not give some. As you can see Shylock is a villain since he is not merciful at all. Finally shylock is a villain because he wants a pound of flesh from Antonio since Antonio did not pay him back. The only reason the Shylock wants a pound of flesh from Antonio is for revenge and if you get a pound of flesh taken there are many changes you will die which were Shylock`s intention to get Antonio to die so he gets his revenge for spitting in his face and having to lend money to other people interest free and that made Shylock lose money. This is Shylock saying that Antonio miss treats him and he hopes to lend money from Shylock â€Å"Fair sir, you spet on me on Wednesday last;/to you spurned me such a day; another time/you called me a dog†(I.iii.126-128) here Shylock is mad at Antonio and wants revenge so makes a deal that he makes the bond interest free but if Antonio does not pay back he will need to give a pound of flesh to Shylock. This quote is Shylock offering to Antonio the money interest free but under the condition of one pound flesh if he does not repay in time â€Å"Expressed in the condition, let the forfeit/be nominated for an equal pound/Of your fair flesh to be cut off and taken†(I.iii.151-153). Shylock wanted revenge towards Antonio for what he had done so he made this bond this proves that shylock is a villain In conclusion, Shylock is a villain since he does not care about his daughter more then his money and he wants revenge on Antonio by getting a pound of flesh. Like you can see in the merchant of Venice by William Shakespeare, Shylock is seen as a horrible man. People are good or bad those this mean they were born that way or you get bad or good later on in life.

Monday, July 22, 2019

Cosmic Race Essay Example for Free

Cosmic Race Essay The term â€Å"Cosmic Race† is also known as â€Å"La raza cosmica† which was based on the opinions of some Mexican Scholars in the 1920’s who held that since the Latin Americans held the blood of all the races, the transcended the races of the â€Å"Old World†. This term basically embodies the idea that traditional, exclusive concepts of race and nationality can be transcended in the name of humanitys common destiny (MacLachlan, 1980). While the idea of the origins or creation of the â€Å"Cosmic Race† has been attributed to other races, there is no denying that it was the Spaniards who played a major role in this. The open-mindedness, in this case the open philosophy and attitude of Spain regarding culture and society, was influential in creating this cosmic race. Spain realized that the key to being able to build a vital and flourishing economy in the colony was to build a common denominator for acculturation by both Indian and European races (MacLachlan, 1980). Spain was able to accomplish this by establishing and expanding the colonial political and ecclesiastical institutions, the economy, society, and the role of women in the Mexica Society. Further proof of this was the policies of Spain regarding women as they encouraged the women to participate in economics and politics by providing the women during that time with extensive legal rights (MacLachlan, 1980). These factors and the methods by which Spain cultivated the Mexica Empire are brought on by the characteristic of Spain as being â€Å"open-minded†, which in turn led to the creation of the â€Å"Cosmic Race. † References: MacLachlan, C. and Rodriguez, J. (1980) The Forging of the Cosmic Race: A Reinterpretation of Colonial Mexico. University of California Press,

Sunday, July 21, 2019

Petrochemical Industry Introduction To Chemical Engineering Assignment Engineering Essay

Petrochemical Industry Introduction To Chemical Engineering Assignment Engineering Essay Introduction Petrochemical industry is being chosen as our main topic for the introduction to Chemical Engineering assignment. Petrochemical is the second level products being derived from crude oil after several refining processes. These chemicals are typically extracted during the refining process as  crude oil  and gas are distilled or cracked, and they can be utilized in a wide variety of ways. Petrochemical can be used to manufacture polyvinyl chloride (PVC). PVC is one of the oldest synthetic materials with the longest history in industrial production.  Ã‚  Its early history is of multiple and accidental discovery in different places at different times as well as unsuccessful quests for commercial application. During the 1950s many more companies started to produce PVC and volumes increased dramatically around the world. PVC products rapidly became essential to the construction industry; the plastics resistance to light, chemicals and corrosion made it the best option for building applications. Improvement made to the materials resistance to extreme temperatures, allowed for PVC to be transporting water to thousands of homes and industries.  PVCs low cost, excellent durability and process ability make it the material of choice for dozens of industries such as health care, IT, transport, textiles and construction. The chemical process for making PVC involves taking the simplest unit, called the monomer, and linking these monomer molecules together in the polymerization process. Various additives including stabilizers and plasticizers need to be added to PVC resin to create a compound that meets the requirement of the end product and of the processing technology to be used.   Importance of Petrochemical Industry in Our Society The petrochemical industry is a complex industry that affects all spheres of life. Most items used in everyday life such as plastic products and soaps owe their existence to petrochemicals. The petrochemical industry connects downstream sectors such as pharmaceuticals with the upstream oil and gas industry.   The petrochemical industry converts feed stocks such as naphtha and natural gas components such as butane, ethane and propane through steam cracking or catalytic cracking into petrochemical building blocks such as olefins and aromatics. While olefins include ethylene, propylene, methanol and C4 stream such as butadiene, aromatics include benzene, toluene and xylene. The petrochemicals of commercial importance in the petrochemical industry include ethylene, propylene, benzene and xylene. These petrochemical building blocks are further processed to yield final products such as paints, polyester and plastics. Take ethylene for instance. It is processed into ethyl benzene, ethylen e oxide, ethylene dichloride, ethyl alcohol, acetaldehyde and polyethylene. These undergo further transformation to yield a wide range of products such as tyres, detergents, agrochemicals and plastic products. Originally, most plastics were made from the resins of plant matter. But it wasnt long before plastics were developed from petrochemicals. The packaging industry, the leading user of plastics, accounts for about one-third of total U.S. production. The building industry ranks second, which uses plastic to make  insulation, moulding, pipes, roofing, siding, and frames for doors and windows. Other industries, including automobile and truck manufacturing, also rely heavily on plastics. The United States was hardly alone in its rising use of petroleum products. Throughout the world, increased industrialization and rapid population growth created new and greater demands for oil. By the late 1950s, petrochemicals became one of the largest industries, and control over the sources and transportation of oil became a major national and international political issue. The Supply and Demand The raw material used for the production Poly Vinyl Chloride (PVC) is Vinyl Chloride Monomer (VCM). Naphtha, which refers to a several different liquid mixtures of hydrocarbon, is the major feed stock used for the production of VCM. The global VCM supply capacity in the year 2009 was 40.0 million tons which 50.8 % of it is based on Naphtha as feedstock. 27.2 % of the global capacity was based on Natural gas for feedstock followed by 17.2% by coal while only 4.7 % of the global capacity was based on other feed stocks. In terms of region oriented, Asia- Pacific had the largest production capacity in 2009 with 18.1 million tons of production which stands 45.1% of the market share followed by Europe with a production capacity of 10.4 million tons and a share of 25.8%. The Middle East had the capacity of 2.0 million tons and a share of 5.2% while South and Central America were closely behind with 1.6 million tons of production capacity with a share of 3.9%. Based on the report Vinyl Chloride Monomer (VCM) Global Dynamics to 2020, global VCM demand in the year 2000 was 20.7 million tons and it grew at a compound annual growth rate (CAGR) of 3.8% from the year 2000 to 2009 in which the demand in the latter year had reached 29 million tons. The report has also indicates that there will be increase in demand of VCM with growth of are a CAGR of 5.4% from 2009 to 2020. This means if the reports expectation is correct, the demand of VCM this year will be 32 million tones and by the year 2020, the demand will be reaching 50 million tones. Out of the 29 million tons of VCM demand in the year 2009, Asia-Pacific has the highest demand in the industry with 16.4 million tons with a major share of 56.4%. The North America had a demand of 5.9 million tons and its share was 20.3% while Europe had a VCM demand of 4.8 million tons, followed by South and Central America with demand of 1.2 million tons. The demand share owned by Europe was 16.5% while 4.1% of demand market share is occupied by South and Central America. The Middle East had a demand of only mere 0.8 million tons along with demand share of only 2.7%. In conclusion, we can see that the major demand of VCM is in Asia Pacific and this is also where the production capacity of VCM is highest in a region around the world. Hence, we can conclude that the production capacity is usually closely related to the demand of the region. Prospect of the industry The production of PVC is a chemical industry. To be more specific, it is a synthetic material industry. It is considered a segment of overall chemical industry with manufacturers representing 20% of chemical industry. The plastic industry, which manufacturing of PVC is, stands around 70% of the whole synthetic material industry which also includes rubber and manmade fibres. The production of PVC requires a lot of process which in turn will require a big plant for the manufacturing as well as storing. The manufacturing process is complex which requires an expertise in the field. Hence, the industry requires the skill and knowledge of a chemical engineer to maintain the plant as well as solving problem that exists within the manufacturing process. Besides, transportation of raw materials is also needed to be coordinated by the manufacturer to lower to cost to yield more profit. From the supply and demand perspectives, both of it is growing from year to year basis which is thoroughly discussed at Supply and Demand section. The reason to the increase in demand is due to the usage of this PVC material, mainly in piping but also diversify to other utilities like plastic for manufacturing of table lamp. On the other hand , the supply of raw material increases due to the demand. The industry plays an important role to the consumer in providing them the product as well as to the economy in making profit and providing jobs opportunity. Impact on the Environment During the manufacturing of PVC process, wastes such as production residue sand installation waste which give impact on the environment will be released out. vinyl chloride monomer is used to produce the  polymer  polyvinyl chloride  (PVC). VCM can be a carcinogen, can cause a rare form of cancer which known as angiosarcoma. Excluding its flammability potential at release, VCM quickly dissipates posing slight threat to human health in form of diluted form and quickly degenerates when exposed to normal daylight as in the open atmosphere. During the polymerization process, basically all of the VCM is changed into the inert polymer chains that form the PVC plastic. The possibility of residual unpolymerised VCM to stay on in the polymer and eventually transfer into food from PVC packaging is high. Some of the liquid  petroleum  hydrocarbon  will be released into the environment like the  ocean  or  coastal waters due to human activity, and is a form of  pollution. In case the balance of ecosystem will be affected. In the process, the combustion of fossil fuels produces greenhouse gases and other air pollutants as by-products. In Addition, oil spill is a release of a petroleum hydrocarbon into the environment due to manufacturing PVC process. In other to reduce the impact on the environment, an capable waste management system will reduce the not being re-used and make the most of the use of economically and environmentally rational recovery schemes. Step of Incineration with Energy Recovery can be taken. Oil that used in PVC production can be utilised as a minimum twice, Incorporating PVC consumer products can be under controlled and reduces the amount of PVC going to landfill and reduces the pollutions. The modern incinerators are equipped with pollution control equipment and run to the highest standards therefore it can help to minimise the release of emissions to the environment. In addition,  mechanical and feedstock recycling can implemented Moreover, anything of the PVC recovery process, residual fraction of waste is contained which not recyclable. Controlled landfill still remains a disposal option in the limited fraction. The consumer product which containing PVC presence in landfill does not constitute a major risk to the environment is confirmed by finding of independent studies. .   Processes how PVC is manufactured (Electrolysis, Chlorination VCM Cracker) 1 Electrolysis: Electrolysis, is a method of using electric current to drive a non-spontaneous chemical reaction. In the production of the PVC, chlorine is produced by separating the chlorine and sodium ions of a salt brine using the method of electrolysis. The electrolysis of salt brine will produce hydrogen gas and chlorine gas. 2 Chlorination: Chlorination is the process of adding chlorine into ethene to produce ethylene chloride also commonly known as vinyl chloride. The chlorine is from the process of electrolysis of brine salt from previous process. In chlorination , chlorine is added to ethene to replace two H atom from the molecule without breaking the double bond in ethene to produce 1,2-dichloroethane. Iron (III) is used as catalyst in the process .   CH2=CH2 + Cl2 > ClCH2CH2Cl   3 Thermal cracking(VCM Cracker): The main purpose of this process is to obtain the chloroethene also known as VCM. This is done because VCM couldnt be obtained by simple chlorination of ethene. Hence, this process is carried out to removed one atom of chlorine from 1,2-dichloroethane as well as recovering the carbon-carbon double bond to obtain VCM. Basically the process is being carried out with condition of 500  °C with pressure ranging from 15 atm to 30 atm. Under that condition, 1,2-dichloroethane decomposes to produce chloroethene (VCM) and hydrogen chloride.   ClCH2CH2Clà ¢Ã¢â‚¬  Ã¢â‚¬â„¢CH2=CHCl+HCl (Prepared by Lim Chung Kin, 0902959) (4 Quenching,5 cooling water ,6 purification) Cracking furnace effluent must be quenched, or cooled rapidly, to keep coking at a minimum. Therefore, the hot effluent gases are typically quenched and partially condensed by direct contact with cold EDC in a quench tower. Alternatively, the hot effluent can first be cooled by heat exchange with cold liquid EDC furnace feed or by vaporizing boiler feed water (BFW) to produce high pressure steam in a transfer line exchanger (TLX) prior to entering the quench tower. This arrangement saves energy by decreasing the amount of fuel needed to fire the cracking furnace and/or steam needed to vaporize the feed. Then it will undergo the Purification process. Water elimination in a VCM purification system is achieved through on condition that a separation of a liquid mixture which consist of water, hydrogen chloride, and vinyl chloride into a hydrogen chloride distillate stream and an essentially pure vinyl chloride product stream in distillation column; and a drying system is placed in fluid communication with the distillation column midsection at a connection point where the water reached sufficient concentration so that a water functional mass transfer flux from a withdrawn midsection stream into a drying agent is provided. The temperature control in this column achieves EDC-water separation control. The VCM produced in the pyrolysis section is separated in the VCM purification section. In the HCL column, temperature control is used to distil HCL off the top of the mixed feed containing mainly EDC, VCM and HCL. The bottom product is fed to the VCM column, where the temperature is controlled to purify VCM as overhead product and the recovered EDC is recycled back to the EDC purification section After the VCM purification process, it is ends up in the feed to the oxychlorination process. If acetylene is allowed to enter the oxychlorination reactor, the acetylene would be readily converted to perchloroethylene and other heavily chlorinated by-products, resulting in a significant HCL efficiency loss. Consequently, the HCL recycle stream is usually passed through a hydrogenation reactor to selectively convert the acetylene to ethylene, which makes more EDC downstream. Hydrogenation is generally carried out in a fixed bed reactor packed with catalyst made from a precious metal on an inert support. Hydrogen is added to the feed in stoichiometric excess to ensure conversion of acetylene to ethylene. The reaction is temperature dependant, with lower temperatures being preferable to maximize conversion to ethylene. If the temperature is too high, a fraction of the acetylene may be further hydrogenated to ethane. (Prepared by Hew She Luan, 0905291) (Stripping, Centrifuging, Drying and Sieving Process) 7 Stripping: In all of the processes used to produce PVC, unreacted VCM is present at the end of the reaction. VCM is a carcinogenic substance and its removal from PVC is very important for both avoiding downstream emission and for recycle purpose. Superheated steam is injected into the polymerization product in the reactor. The steam causes unreacted VCM to vaporize making it easy to remove. The temperature of the steam injected into the polymerization product should be 180 while the pressure should be 10 bar. 8. Centrifuging: During this step, PVC is separated from VCM. The water to the inlet of the centrifuge is filtered to prevent PVC from being contaminated by impurities in the water. Nexis T filters rated at 10m are recommended to filter the water. 9. Drying: Most of the water is removed when the slurry passes through the centrifuge. A damp cake of polymer leaves the centrifuge and is conveyed into the fluid bed dryer. Here, the remaining water contained in the porous grains evaporates as a stream of heated air bubbles through the polymer powder. In order to minimize the emissions, the moist air is wet-scrubbed before discharge into the atmosphere.    10. Sieving: After the drying process, the PVC will go through sieving process where the PVC is separate into different sizes for further processing. (Prepared by Cody Yip Jun Kit, 10UEB00894) (Storage and Handling, Control Room and Polymerization) 11. Storage and Handling VCM must be stored in a tightly closed container in a cool, well ventilated area, away from direct sunlight, heat and incompatible materials .VCM can be stored in steel tanks at ambient temperature. The drums must be equipped with self closing valves, flame arresters and pressure vacuum. Consider installation of leak detection and alarm for storage and use area. VCM should not be stored below ground level. 12. Control Room A Control Room is the room where pumps, fans, blowers, mixers, mills and centrifuges are controlled by variable speed drives and soft starters. Minicomputers are used to control chemical reactors in the PVC production process. Computer control can bring advantages to a batch process, closer control of the process, major gains in safety and the opportunity to use larger, more efficient processing equipment. Under manual control, a polymerization cycle might take about 14 hours but computer control can cut this time to about 8 hours. Computer control also offers substantial gains in accuracy and safety. A typical computer controlled reactor stands about six stories tall and hold 30,000 to 50,000 gallons. While in manually controlled plants, each reactors capacity is between 2,000 and 7,000 gallons. Computer control enables PVC plants to meet new OSHA standards, effective April 1, 1976, that will limit the exposure of workers to VCM vapors. VCM vapor is a known human carcinogen. If inhaled or absorbed through the skin, it may be harmful. VCM vapors may be a reproductive hazard. 13. Polymerization The process of polymerization links together the vinyl chloride molecules to form chains of PVC. The PVC produced in this way is in the form of a white powder. This is not used alone, but blended with other ingredients to give formulations for a wide range of products.   In the polymerization process practically all of the VCM is processed into the inert polymer chains that make up the PVC plastic. It is possible for extremely low levels of any residual depolymerised VCM to remain in the polymer and eventually migrate into food from PVC packaging, but only at levels. Polymerization of PVC is divided into 2 types which is emulsion polymerization and suspension polymerization. Emulsion polymerization involves the polymerization of monomers in an aqueous medium containing surfactant and a water soluble initiator, producing PVC lattices. PVC lattices are colloidal dispersions of spherical particles, ranging in size between 0.1 and 3.0 ÃŽÂ ¼m. Most PVC lattices are spray dried and then milled to obtain fine powders, made up of agglomerates of latex particles. When mixed with plasticizers they disperse readily to form stable suspensions. During mixing most of the agglomerates are broken down into the original latex particles. Such dispersion of fine particles in plasticizers are known as plastisols or pastes, and the powder is called dispersion or paste polymer. The surfactant layer around the particle surface prevents their adsorbing the plasticizer at room temperature so they can be used as liquids and may then be spread on to fabric or other subs trates, poured on molds, or deposited on formers to produce flooring, wall covering, artificial leather, balls, toys, or protective gloves. There are other grades of PVC polymers, produced by emulsion polymerization, that do not form plastisols and that are used as blends with suspension PVC grades for extrusion application or in the manufacture of battery separator plates. These so-called emulsion polymers are of only minor economic interest. Sales in latex form are very limited; lattices are used in water-based paints, printing inks, and impregnated fabrics. (Prepared by A. Srinyanavel 0904742) (Packing and dispatch, compounding, converting and recycling) 14. Packing dispatch: In this process, soft PVC is packed on a semi-automatic snaking machine or manually, depending on the size, shape, and length and intended use of final product. The length of the roll cut on a stumble varies for fix packages form 10m to 100 m. However, other lengths are also obtainable upon appeal. Rolls are provided with 3 binding strips and marked with markets badges. Some soft PVC sizes are packed into polyethylene foil to provide appropriate security against incidental scratch or corrosion of their functionality. 15. Compounding: This process involves storage, conveying, metering, mixing, and cooling. All these operations occur prior to the actual melt compounding. The distribution becomes harder because the filler loading level is increased and the surface area of the mineral filler increases. The surface area increases rapidly due to the particle size decreases. These are important steps in the process that can affect the quality of PVC. If these requirements are not met completely, the final products physical properties will be affected. 16. Converting: This process is either makes final PVC products for sale or makes components for further uses. Different additives like stabilisers and plasticisers need to be added to PVC resin to create a compound that meets the requirement of the final product and of the processing technology to be used. Compounding may be carried out by the converters or by separate compounders who supply ready-made blends prepared for processing. The PVC compound is then converted by processes such as extrusion, moulding and calendaring. 17.Recycling: Polyvinyl Chloride can be reused; however the purity of the material tends to degrade with each time of reuse cycle. In addition, the separation of the different additives and compounds forming the plastic makes recycle a difficult process. The biggest problem with PVC recycling is that it is difficult to automate the sorting of plastic waste, and so it is labor-intensive. There are three ways of PVC recycling: mechanical recycling, mechanical recycling for mixed plastics and feedstock recycling. (Prepared by Cheah Kai Mun, 0904128) Role of chemical engineer in petrochemical industry Beneath all of the general responsibilities listed above, a petrochemical engineer must engage in numerous specific duties on a daily basis. The first duty which the petrochemical engineer is responsible for completing is research. The petrochemical engineer must take careful steps to ensure that what they are looking to manufacture and how they are looking to manufacture a product is the right avenue to pursue. The way to resolve this issue is by doing a lot of research on a variety of topics relating to petrochemical engineering. The petrochemical engineer is also responsible for designing a variety of items and this is a very important duty which they must complete. A petrochemical engineer must design various items such as measurement and control systems, petrochemical manufacturing equipment and petrochemical manufacturing processes. This is a major duty on the part of the petrochemical engineer and one which must be carried out with preciseness at all levels and stages.   A petrochemical engineer must also engage in a wide array of analyses. The things which the petrochemical engineer must analyze include test data, engineering design, design problems and research findings. The petrochemical engineer must take painstaking measures to adequately analyze these items as the outcome of the project could very well depend on the analysis which is undertaken by the petrochemical engineer.   One who is an engineer must develop certain procedures and policies as well so that there will be smooth operations all the way around the board. Various procedures and policies such as safety procedures, data tables and employment policies may all be in the hands of the petrochemical engineer. A senior level petrochemical engineer will have more to do with regard to developing policies and procedures within the company orcorporation.   The preparation of multiple reports is also in the hands of the petrochemical engineer. The petrochemical engineer must prepare data which specifically details the findings of certain tests and evaluations. These reports can be text or tables depending on the type of report which is needed.   A petrochemical engineer will also deal with other individuals a great deal. The reason for doing so is to relay the results and findings as well as oversee other petrochemical engineers and related workers in their field. From time to time, petrochemical engineers must lecture to their peers and the general public regarding their job and role in society. The Skills/Knowledge required by the engineer In the oil and natural gas industry such as PVC manufacturing industry, the Petrochemical Engineer is playing a important role. With all the products derived from crude oil it is practically impossible to imagine a world without them.   Act as a petrochemical engineer, several skills and knowledge are needed. Petrochemical engineers should be expert in analytical things. They need constantly putting their creativity to work, efficiently and on a large scale, transforming combinations of elements of matter, synthesizing new materials.  Besides, it is important to determine the most effective processes for normal production. For example, Design and develop newest and enhanced processes and equipment for converting the raw materials into products by using computers to simulate and control such processes. Other than that, creative and innovative thinking with excellent problem solving skills is important to a petrochemical engineer. In order to have an organized and high quality products being designed, engineers should always troubleshoot environmental problems in industrial processing and manufacturing plants. Just in the same way, efficient, safe and environmentally responsible plant operations needed to be ensured. Moreover, planning, organizing, and prioritizing tasks skills across multiple projects are needed by an engineer. They acquire excellent both spoken and written, communication skills, and cooperate well in teams with people from different backgrounds and disciplines. Engineers, technicians, supervise technologists, and other involved in related activities. Additionally, participates aggressively in new product introduction are motivated, including influencing the design of the product to ensure manufacturability and quality conformance, testing the dependability of prototypes and managing the alteration into production.   Applying mathematical and scientific principles are needed too. Some of the processes such as catalytic cracking is developed by Petrochemical engineers to break down the complex organic molecules found in crude oil into much simpler molecules. Conclusion In a nutshell, chemical engineers need to possess skills, knowledge and experience in order to make the conversion of raw materials that enter the reactor into a useful product that leaves the reactor a success as well as minimizing the damage done to the environment. PVC production is still in demand worldwide even though everyone realizes that PVC takes a long time to decompose. However, the production of PVC will not be stopped as other industries still rely on plastics to manufacture or to pack their products. The industrial method to produce PVC involves 17 processes according to our group research and among the 17 processes some actually emit harmful materials or gases as a byproduct that causes damage to the environment. However, these processes must be made as environmentally friendly as possible to produce PVC without damaging the environment.

Saturday, July 20, 2019

Alcoholism Essay -- Persuasive Argumentative Essays

Alcoholism Alcohol consumption was initiated on reservations when traders in the nineteenth century started to offer it to oppressed and depressed Native Americans. Natives represent, in fact, the ethnic group with the highest degree of alcohol consumption in the United States. Confinement on reservations after displacement brought for Native Americans identity conflicts and assimilation problems. This situation promoted the abuse of liquor to mitigate the psychological pain inflicted by the dispossession of the land and enclosure in a limited and controlled space. Both the stereotype of the â€Å"Noble Savage† and the â€Å"drunken Indian† are recurrent figures in mainstream literature of the US. Native American Literature of the 70s and 80s (American Indian Literary Renaissance) focused on restoring the tribal inheritance of mixed blood Indians who had been alienated both by whites and fellow Indians. Serving in the army during World War II or in the VIETNAM WAR, some tried to gain the respect of their fellow soldiers only to collapse completely and dive into an ocean of solitude after the conflicts ended. Partial consolation seemed to be found in drinking. Assimilation to white culture often times means drinking as whites, thus, CEREMONY, HOUSE MADE OF DAWN, WINTER IN THE BLOOD and LOVE MEDICINE, among others, introduced the topic of the alienated Indian destroyed by liquor. James WELCH, Louise ERDRICH, Leslie Marmon SILKO, and Scott MOMADAY deal with the issue of alcohol abuse in most of their novels; they express a true concern about the situation of their tribes due to alcoholism and propose the return to the ancient ceremonies and traditions to cure tribal members addi cted to liquor and restore their link with the earth. ... ...n Blues. New York: Warner Books, 1996 Brave Bird, Mary E.& Erdoes, R. Ohikita Woman. New York: Grove Press, 1993. Crow Dog, Mary E. & Erdoes, R. Lakota Woman.New York: Harper Perennial, 1990. Dorris, Michael. The Broken Cord Erdrich, L. Love Medicine (New and Expanded Edition). New York: Harper Perennial, 1984. Gunn Allen, Paula. The Sacred Hoop, Recovering the Feminine in American Indian Tradition. Boston: Beacon Press books, 1986. Mc. Farland, R. James Welch. Lewinston (IH): Confluence Press Inc., 1986. Momaday, N. Scott. House Made of Dawn. New York: Harper and Row, 1968. Silko, Leslie Marmon. Ceremony. New York: Penguin, 1977. Stookey, Lorena Laura. Louise Erdrich : a critical companion. Westport (Connecticut): Greenwood Press, 1999 Welch, James. Winter in the Blood. New York, Harper & Row 1974 Imelda Martà ­n-Junquera

Salespeople Motivation Essay -- Human Resources

Introduction Salespeople are often internally driven and self-motivated (Srivastava and Rangarajan, 2008), and are increasingly becoming consultants who sell value-added services (Smith and Rupp, 2003). Nowadays more industrial companies employ sales engineers (SE) and therefore they represent an emerging class of knowledge workers on sales (Darr, 2002). I will first discuss my experience in Festo, before briefly addressing some theories about motivation, related to it. Was there a mismatch between theory and business as I knew it? If so, I will try to identify it and to explain why Festo's incentives failed with me. Finally, I will suggest how Festo should have motivated its SE, based on the theory discussed. What is a SE? Although having studied engineering, I have mostly worked as a salesperson. Thus, I can ask: what is a SE? A salesperson with a strong technical knowledge on the field he/she is selling. Furthermore, a SE could be defined as a technical-consultant salesperson or a knowledge worker (Darr, 2002). These ideas somehow extend Lidstone's (1995) definition of a technical salesperson: someone who sells industrial products, equipment or highly engineered components, has a major emphasis is his/her technical know-how but are often worried with technical details and tends to forget his/her job is to sell. SE at Festo Festo Argentina had around 20 SE (2007) nationwide (from a workforce of 120), half of them farther away than 400 miles from main office. Needless to mention, every SE had a different emotional background (psychological characteristics), engineering field (industrial, electronic, mechanical), and socioeconomic situation (some married, some young and single; middle-aged, well-off, working class, etc.... .../2010]. Pritchard, R. and Ashwood, E. (2008). Managing motivation: a manager’s guide to diagnosing and improving motivation. New York: Taylor & Francis Group, LLC. Smith, A. and Rupp, W. (2003). An examination of emerging strategy and sales performance: motivation, chaotic change and organizational structure. Marketing & Intelligence Planning, 21/3, pp.156-167. Smyth and Murphy (1969). Compensating and motivating salesmen. New York: American Management Association. Srivastava, R. and Rangarajan, D. (2008). Understanding the salespeople’s â€Å"feedback-satisfaction† linkage: what role does job perceptions play?. Journal of Business & Industrial Marketing, 23/3, pp. 151–160. Steers, R. and Porter, L. (1987). Motivation and work behaviour, 4th edition. New York: McGraw-Hill Inc. Stewart, G. (1994). Successful Sales Management, 3rd edition. London: Pitman Publishing.

Friday, July 19, 2019

Unequal But Not Separate :: Essays Papers

Unequal But Not Separate Enemy fire whizzes by, hitting the walls around behind me. The spent shells are scattered at my feet. The smell of death and gunpowder tantalizes my nose. In the distance I can hear the chopper hovering. All I can do is pray that it reaches us in time. Enemy fire begins again. I am lost in the smoke and confusion. Then Private Jackson falls to the ground behind me. He has been hit. Now his life is entrusted to me. The chopper is now hovering across the field about 100 yards away. I tuck my gun away and reach down to grab him. I try to put him over my shoulder, but I can’t lift him. I start to drag him toward the chopper. I struggle for about 25 yards. The pilot is waving me on, motioning me to hurry. I don’t have the strength. I can’t go any farther. The chopper has to go, it can’t wait any longer. I am alone with Private Jackson looking up at me in disbelief, knowing it is my fault we will both be dead in a matter of minutes. The military, the nation an d Private Jackson all had trusted me to make it and I had failed. Trust. It is the bond that holds our great military together. When this trust is broken our nation, as a whole will suffer the consequences. A soldier must have complete faith that his fellow soldiers, both male and female, will do their job so that he can focus on his. But what happens when double standards are employed for female soldiers? Can one expect a male soldier to completely trust her ability to complete her tasks as a soldier? The soldier knows full well that his female comrade didn’t have to perform the necessary physical tasks to the same standards that he did. How can one have confidence in her abilities if her performance would have been unacceptable had she been a male? The thread of trust begins to unwind once a soldier question another’s abilities. That is why one uniform standard had been in place throughout history. A soldier knew that the every other soldier could perform tasks to the same standard that he had. They had a common trust that held the m together. Now, with gender norming, the double standards used to ensure women pass the physical tests, we put the trust that held our military together in jeopardy.

Thursday, July 18, 2019

Psychological factors that affect performance in sports Essay

Competition in sports and the general performance of athletes in various competitive activities results in increased stress among the athletes. This increased stress makes the athlete to react mentally and physically in a way that negatively affects the performance capabilities of the athletes. The athletes may tense, increase their heart beats, sweat allover as they agonize about the possible results of their performance. Such athletes find it difficulty to focus on the mission ahead. This aspect has resulted in many coaches and trainers to take more interest in the subject of sports psychology, specifically in the aspect of competitive anxiety. The attention has centered on factors that affect performance in sports, physical activity and exercise and on skills athletes apply in competitive environment. Ones the factors effecting performance are established, the skills required for succeeded in competitive environment are also taught to the athletes. This paper seeks to research on Psychological/mental factors that affect performance in sports, physical activity and exercise. To carry out this objective, the paper will proceed by highlight the issue under discussion, reviewing previous literature on the subject in details, and discussing the finding, the lastly make the concluding remakes based on finding of the researcher paper. The issue Sports participation by athletes places a lot of physical as well psychological stress on these athletes. Rushall and Potgieter (1987) explain that a serious competitive situation is whereby the outcomes of performance of the athletes are most crucial and strongest. Factors which affect the athlete’s view of this situation have been explained by Rushall and Potgieter (1987) as ‘sports stress checklist’. According to Teed, (1987) differences in these factors results in performance inconsistencies, while at the same time they also imply patterns which influence exceptional performance. In tough and serious performance circumstances, it has been established that performance based strategies of specific elements have significant impact on performance reliability and consistency (Syer, and Connolly, 1984). There is always need for particular preparations to be done in various fields such as performing arts, and business, (Goetz). Though, previous studies have established that there is always need for such psychological preparations to be undertaken in the field of sports, it is still being overlooked in many sporting setting by trainers as well as sports psychologists. In addition, when plans or strategies are drawn mainly by the athletes themselves, Syer and Connolly (1984) notes that they result in the following advantages, reduced uncertainty and interpretive disruption as well as stress brought by negative circumstances, improved performance consistency of athletes, better coping ability for difficulties, and lastly reduced performance declines. The following section takes a detailed look on psychological factors that effect performance. Literature review: Factors affecting performance  Segmenting sports activity and other physical activities In case the event or activity to be performed is long, it is required that it should be broken down into shorter segments. The segments ought to be short enough so that the athlete is able to concentrate fully on what is required to be done and thought during that period. This helps the athlete to focus on achieving of successful competition aspects. Arranging competition is this way is termed as segmenting. Segmenting has originated from two main sources. One, the goal-setting past literature has indicated that far-off goals have got less effect on athlete performance compared to proximal goals (Syer and Connolly, 1984). A performance goal which are short-term and which, center on processes required for successful conduct improves performance. Two, people facing extensive assignments normally break the down to better manageable parts Stress Stress is major factor which affects athletes’ performance. Numerous studies have indicated that stress has directly effect athletes, though the extent of the effect is not various and it is hard to measure correctly. In a study to measure stress carried out by Jones and Hardy (1989), electronic gadgets were attached on athletes so as to directly measure the physiological arousal of the athlete using a process termed as telemetry. The gadget transmitted a radio signal into a receiver whereby physiological responses like the heartbeat can be assessed while the athlete is carrying out his/her normal activities and when he/she is involved in sporting action. The study revealed that athletes experience high degree of arousal when in sporting activities. However, the shortcoming with this method of measurement is that the results can not ascertain for sure which kind emotion is being felt by the athlete, it came be anxiety caused by stress, or it could be excitement caused by joy of participation in the sporting event. However, in another study by Jones and Hardy (1989) it revealed that sporting activities are not very much stressful for athletes particularly when compared to other physical activities in which the athletes are evaluated according to their performance. Nonetheless, it remains apparent that sporting situations are able to result in increased degree of stress for many athletes. Instead of the athletes finding competitive sporting activities challenging and enjoyable to take part in, a number of athletes certainly experience anxiety and threats in such a sporting situation. Jones and Hardy (1989) adds that anxiety together with fear resulting from stress are what many individuals would like to avoid, but this is exactly what effects a lot of athletes. Many athletes drop out off sporting activities because of these two aspects, as they find sporting activities to be threatening instead of being pleasant experience. A high number of individual also revealed that they would prefer to take part in sports and other physical activities by they fear that they will perform badly and if there is selection going on, they would even be selected to join the team. Thus, stress is a major factor which affects sports and can reduce the enjoyment of taking part in sporting activities Thought contents of athletes  Performance efficiency of an athlete is usually reduced due to distraction but it is improved by having relevant concentration. However, there are Holingen and Vikander, 1987) asserts that there are a number of exception to this opinion, for instance cognitive interference. But, Jones and Hardy (1989) say that, to perform well in tasks under stressful situation, the athlete has to focus his/her attention on the processes of completing the task successful in the best position. This specifically is true when it comes to sports. Cognitive concepts like attention focus and flow have a characteristic of a particular task orientation. However, this orientation differs in relation to the stage as well as the kind of activity being performed. Cappaert and Rushall (1994) explain that the objective of focusing on task-relevant information is to make sure that every resource is made available to the athlete in sporting activities. Athletes should be being able get focused and concentrate on the cues in a sporting activity so that they can effectively deal with the present task. These skills of focusing assist the athletes to maintain their individual mental intensity within a sporting activity. General techniques of concentrating comprises of avoiding distractions, skills to develop awareness (Syer and Connolly, 1984). Self statement This is your inner voice, what you an athlete says to him/herself. This aspect of self-talk relates to the manner athletes feel and also act. However, Jones and Hardy (1989) explains that changing ones self-statement and making it positive creates a positive mental position, which in term gives the body a positive approach to an a physically activities and makes the athlete to perform better in that activity. This observation is supported by Syer and Connolly(1984) who asserts that self-statement is as well associated with factors which are related to improved performance, for instance coping (Gibson and Heads, 1989), self-efficacy (Jones and Hardy (1989) and self-concept (Selkirk, 1980) In a study carried out by Cappaert and Rushall (1994) they established a direct impact of negative self-talk on swimmers performance. In another observation of 20 tennis players participating in a tournament, it was established that negative self-statement was linked to losing, those players who used positive self-statements and believed in its utility worn much more points as oppose to those with a negative self-talk (Holingen and Vikander, 1987). Positive self-statement was a crucial aspect of a game plan for improving results of basketball (Teed, 1987) and as Holingen, and Vikander (1987) explains for learning essential forms in ice-skating. And also for increasing the total number of wins by tennis players