Different ways of manufacturing aluminum Research Paper

Different ways of manufacturing aluminum - Research Paper Example minum has thousands of different applications particularly in construction and manufacturing sectors and â€Å"more than 10 billion pounds of aluminum are produced worldwide annually† (Lindamood n. d.). The most commonly found aluminum ore bauxite is a mineral of aluminum (Al) and hydroxyl (OH) with very strong covalent bounding between oxygen and aluminum. Hence on large scale, it is not possible to directly extract Al from its ore by simple chemical process. The separation is carried out through various indirect methods. The manufacturing of pure aluminum (lxx.x, 99.00% or greater) from its ores is done through following process as given below. Also known as ore separation/purification process is invented by an Austrian chemist Carl Josef Bayer while working at Saint Petersburg, Russia. In this process, after mining, the ore is mechanically crushed into very fine granular form. The fine powdered ore is then mixed in hot caustic soda liquor (NaOH) at 110-270 °C under 340 kPa Pressure to produce slurry of liquid. After several hours of process NaOH completely dissolves the Al. The liquid is then passes through a series of flash tanks to reduce the pressure and to recover the heat. The mixture is separated from its solid impurities by passing it through a settling tank and through filtration process. The saturated aluminum rich liquid passes through a series of six-story-tall precipitation tanks (Hall 1997). As the liquid propagates through each tank, seed alumina hydrate crystals are also added from the top of each tank. The â€Å"aluminum trihydrate crystals grows in size and precipitated calcined in rotary kilns or flui dized bed calciners to produce alumina (Al2O3)† (Aluminum Manufacturing 1998: pp.261).The crystals obtained through kiln are cool down and proceed to smelting process. In Hall-Heroult Process also known as smelting processing the alumina crystal abstained through Bayer process is further dissolved in molten cryolite at a temperature of 960-970 ° C

Explain the bilateral trade flow between China and Australia through Essay

Explain the bilateral trade flow between China and Australia through the traditional and modern trade theories - Essay Example (Chambers, 2006). On the other hand, Australia’s economy has turned out to be extremely prominent and so the bilateral trade between China and Australia. The economic boom in China cannot be ignored world wide and constitutes a number of opportunities to trade with Australia. The gas treaty between the two countries had established as the predecessor in order strengthen their trade relationship. However, China needs to have raw materials and is an eminent buyer of liquid gas and minerals from Australia. The Prime Minister of Australia John Howard and President Hu Jintao of China decided on a Free Trade Agreement (FTA) as well. Hence china has become Australia’s chief customer whether it is Australia’s natural possessions or it the iron ore, which has made Australia expand its seaport to export more iron to China. The international relationship of China with Australia has been progressing since the year 1973 when the two governments signed the trade agreement and the bond between these two countries is growing even stronger day by day. The joint accords have been established since past 32 years related to numerous commodities such as dairy products, agriculture, raw materials, natural gas, iron ore, energy, hygiene guidelines along with capital protection and support for traditional aspects that have developed the business association of the two countries. *Footnote: Thomas Nicholas, Re-orienting Australia- china relations 1972 to the present, Great Britain, MPG Books LTd.2004. The relationship has further enhanced due to their combined Participation in APEC (Asia Pacific Economic Cooperation). The study also focuses on the Free Trade Agreement (FTA) and the challenges along with opportunities for Australia and China where the involvement of WTO (world trade organization) also plays a vital role. Initially the conciliation tool place in Sydney in 2005, May and continued till the beginning of year 2008 and had 11 negotiable meetings. A free t rade agreement is a contract between two countries where tariffs are excluded from deals and it lies under the rules set by WTO.( Thomas, 2004) A gauge to determine the economic conditions of a country is its gross domestic product (GDP) which refers to a final worth of every product in a particular time frame and is measured in terms of comparison with last year (quarter of full year), e.g. if the current GDP of a country comes out to be 5%, it shows that the economy has raised by 5% in the current year. A negative GDP value indicates a state of recession in a country, leaving the investors in trouble due to economic crisis. A strong economy will lead to good salary increments as the companies stay in profit, while a fluctuation in GDP (up or down) will also affect the stock market and the investors. GDP may be calculated in two ways: first method is to calculate the total earnings and profits, and second way is the calculation of expenditure (amount spent in a year). China is cons idered as one of the largest economies in the world. According to The Economist 2004a, china stood at 3rd number in increasing global GDP and importing goods from the year 2000 – 2003. The country is famous for a wide range of products whether food stuff, machines, toys, plastics goods, electronic products, appliances, industrial goods such as food processing units, rubber goods, furniture, etc. The GDP of China is increasing by seven percent every year since last 5 years. The contribution of China to global economy is growing gradually and trade constitutes as a chief feature in making its

Final Assignment Example | Topics and Well Written Essays - 1750 words

Final - Assignment Example The power of media, as a source of credibility, is a tool of political persuasion. The linkage between politics and media has not been explored extensively with a little research connecting the two. It is important to research on the extent to which persuasion in news media depends on the viewers and listeners attitudes towards the news media as an association. One source confirms that people who trusted the media were susceptible to agenda settings from media information. Other studies show that people tend to adopt the position of media hosts, especially where the host is trustworthy and knowledgeable (Wasserstrom 25). During the political campaigns, media houses carry out pre-polling surveys and provide statistics to the public. In some cases, media gives factual results and in some cases non- factual. Politicians’ incentives lead them to favor information sources they can control and try to reduce the influence of sources affiliated with rival political factions or with no faction (Wasserstrom 34). This is done to counteract negative publicity as portrayed by rival politicians in the same race for a political seat. As a way of influencing the public’s behavior on the main Election Day, the majority of the public adopts the media’s story and votes for or against the particular candidate. In examining press freedom, media houses are allowed by law to filter the information they share with public to suit a particular interest so long as the interest is not meant to cause violence or harm to the public. Professional journalism is the only way to ensure credibility in the media to gain public trust. An attempt to understand media freedom introduces media pluralism, which a few people would oppose in principle. The media have allowed access to a broad range of cultural expressions and political views, which constitute the fundamental policies of the media policy which directly link media with democracy (Wasserstrom 54). This views that media pluralism as a political, theoretical, or empirical approach, which is believed to embody the central conflicts in modern thinking about the societal role of media. Religion contributes in the creation of the collective consciousness of the faithful, which builds strong religious bonds among the Christians. Religion has its own established institutional frameworks which immensely contribute in the enactment of laws and maintenance of peace and order in a nation. Moreover, the religious institutions influence the economic status of nations given that the church and society are inseparable. Religion also plays a role in the rehabilitation programs of errant members of society, hence enhancing peace and order in the society. This results in reduction of crime rate and increase in economic activities. This results from the small scale entrepreneurship and farming done by the rehabilitated criminals. Education contributes to proficient communication, which influences the socialization of citizens in politics. For instance, verbal communication is sufficient in communication, hence communication through writing is also emphasized. This is because communicating verbally enhances stressing of points and it is more lively compared to the written communication. The average people realize that communication through writing enables people to appreciate social interactions. In addition, the latter provides a record of events, thus in case there is a need for information reference can be made easily to the documented written document. The majority of people

Deep Ecology Essay Example | Topics and Well Written Essays - 1750 words

Deep Ecology - Essay Example Deep ecology is a belief, while religion is defined as beliefs that are concerned with nature, purpose and the cause of the universe. As a religion, its dominant tenet of spirituality is that human species are part of the earth and not a separate entity. This paper will argue out that deep ecology is a religion. The main principle of deep ecology is a belief, just like humanity, that the environment which is living has an equal right to blossom and live. It is said to be deep due to its persistence questioning on â€Å"how† and â€Å"why† and as a result, it is based on philosophical questions which are fundamental on the effects of human beings life as a part of the ecosphere, rather than dealing with the minor view of ecology as a biological science branch. In addition it focuses to stem anthropocentric environmentalism that is based on environmental conservation with an aim of exploiting human objectives which buffers the philosophy of deep ecology. It seeks more vie w of the world that we leave in a holistic way, and further, seeks an application of life understanding that separates the functioning of the ecosystem parts as a whole. In addition, it seeks to eliminate the issue of supremacy in religion life, of which it is impossible to give concrete evidence that eliminates the existence of God. The happenings in the world alone can tell that there is a supreme power that is in control of the living and the non living. Policies of ecologically take into account only the concerns on pollution and resources depletion. It is relevant to note that there is deeper issues which are involved with the principles of diversity, autonomy, complexity and decentralization in deep ecological movement. The act of referencing human beings in the environment is a favor to the rationale total field image. Organisms have an intrinsic relationship. As a result of this, it dissolves concepts of the human-in-environment. In addition, the ecological field worker has a deep seated respect or the veneration for the kinds and forms of life. Human beings acquire an understanding from within. This kind of understanding is also reserved for other human as well as for narrow sections of life forms. The intrinsic relationship that is within organism in the environment is as a result of the common ground of creation that everything originates from. The world did not just come to exist, but God who is supreme brought this up, and beings cannot be the most relevant to the environment on their own. In addition, the equal right of individuals to live and flourish is clearly intuitive and value of axiom. Furthermore, its restriction to life of human is anthropocentrism with effects which are detrimental on human life quality. The quality pleasure depends on the satisfaction that is received from a correlation which is close with other life forms. The attempt of giving dump ears to our dependency and the establishment of other roles which are master levels a contribution to human alienation. The egalitarianism of ecology claims that the reinterpretation of future research variables on human population levels and loss of life is equally not taken seriously. This is because it is beyond human understanding; the life of human is unclear on how it came to be. It is therefore obvious that we are taken care of by a supreme being who gave breath to the souls on earth and at any time the ability to breathe is

Social Factor Essay Example for Free

Social Factor Essay War Child is a network of independent organization, working across the world to help children affected by war. Theyre a social organization to advance the cause of peace through investing hope in the lives of children caught up in the horror of war, which is mainly their number one aim. Employees of War child has a big influence in the organization, because their all there for the same reason to help the organization reach their aims. What is also a social factor of War child is that anyone can volunteer and take part of the important events to save those kids. Employees can move to different countries where they can set up camps to build programs for war affected kids, the only thing that can go wrong is if an employee doesnt want to go or even work together as a group, this can both cause conflict and also can become public to donators and cause a downfall in the organization. But of course they would only send qualified employees to do to go into post conflict areas for their safety and health. War Child believes that interplay between physiological and social factors is consisting of healthy emotional, cognitive, social and spiritual development, which includes social integration. As a social factor they implement either or together with their partners, progress to protect and empower children and young people. War Child is a right-based organization committed to the fulfillments of children rights! Comparing the organizations As you can see that both companies are not that far from each other, they all can perform well so long the economy is going good and positive. The only difference really with the both organization is that for MS aims for profit and War child for a good cause by helping war affected children. But both of this company can get into to problems with the economy for example if theres an economic crisis, people will not spend as much money, .sales will go down and even have to fire people from their jobs and with War child is the economy is still being greedy by wanting more diamonds and causing war in places such as Angola and Sierra Leone. One the social part there are not too far from each other nearly the same, they all needs to work together to achieve their organizational aim. So long there is the right communications and respect amongst each other, then conflicts can be avoided. Because of the globalization, the economy changes and the society, there will always be changes if there can. For example government regulations and the standard of living the people has paid a price for. The external factors do have a lot of influences on these companies. If the economical crises arise can cause the company to close some stores or even come to debts and could case war not only from war affected kids but the whole society in general.

Search and sort Essay Example for Free

Search and sort Essay Direction: Provide the appropriate output for the following machine problems. Note: To authenticate the output, please insert the printscreen and the source code in a zip file. Deadline of submission: September 18, 2013 (no extension). 1. Write a program to test the method binarySearch. Use either the method insertionSort or selectionSort to sort the list before the search. 2. Suppose that the elements of a list are in descending order and they need to be put in ascending order. Write a Java method that takes as input an array of items in descending order and the number of elements in the array. The method rearranges the element of the array in ascending order. Your method must not incorporate any sorting algorithms, that is, no item comparisons should occur. 3. Write a method, remove that takes three parameters: an array of integers, the length of the array, and an integer, say, removeItem. The method should find and delete the first occurrence of removeItem in the array. If the value does not exist or the array is empty, output an appropriate message. (Note that after deleting the element, the array size is reduced by 1.) You may assume that the array is unsorted. 4. Write a method, removeAt, that takes three parameters: an array of integers, the length of the array, and an integer, say, index. The method deletes the array element indicated by index. If index is out of range or the array is empty, output an appropriate message. (Note that after deleting the element, the array size is reduced by 1.) You may assume that the array is unsorted. 5. Write a program to keep track of a hardware store’s inventory. The store sells various items. For each item in the store, the following information is kept: item ID, item name, number of pieces ordered, number of pieces currently in the store, number of pieces sold, manufacturer’s price of the item, and the store’s selling price. At the end of each week, the store manager would like to see a report in the following form: Friendly Hardware Store itemID itemName pOrdered pInStore pSold manufPrice sellingPrice 4444 Circular Saw 150 150 40 45.00 125.00 3333 Cooking Range 50 50 20 450.00 850.00 . . . Total Inventory: PHP #########.## Total number of items in the store: _______ The total inventory is the total selling value of all the items currently in the store. The total number of items is the sum of the number of pieces of all the items in the store. Your program must be menu driven, giving the user various choices, such as: check whether an item is in the store, sell an item, and print the report. After inputting the data, sort it according to the items’ names. Also, after an item is sold, update the appropriate counts. Initially, the number of pieces (of an item) in the store is the same as the number of pieces ordered, and the number of pieces of an item sold is zero. Input to the program is a file consisting of data in the following form: itemID itemName pOrdered manufPrice sellingPrice Use seven parallel vectors to store the information. The program must contain at least the following methods—a method to input the data into the vectors, a method to display the menu, a method to sell an item, and a method to print the report for the manager. After inputting the data, sort it according to the items’ names.

Competition And Market Power Economics Essay

Competition And Market Power Economics Essay For a long period of time, De Beers has been successfully raising consumer demand for diamonds. The company is famous for its monopolistic policies during the last century, when it used its leading position to control the international diamond market. De Beers had a number of methods to ensure its control in the market: thus, it joined some independent manufacturers to its single channel monopoly, it pushed the manufacturers who refused to join the cartel out of the market by overfilling the market with diamonds, it bought and stored the diamonds of other producers in order to regulate the prices (De Beers Company). Pure monopoly means the conditions in the market, when only one company produces and sells a product that has no substitutes. The market access is limited and the company has complete control over prices. Thus, in pure monopoly, the market is dominated by a big enterprise-monopolist fully controlling the prices. Establishment of extremely high prices is restrained by the risks of a fall or a lack of consumer demand. Monopolist assesses demand and sets the price at a level that ensures the greatest return on investment (Larue, Gervais Pouliot, 2008). Monopolies are also public utilities, the services of which are used by any business. The existence of natural monopolies is justified by the fact that they best meet the public interest. In rural areas, such monopolies can be companies supplying agricultural machinery, chemical fertilizer, seed and breeder farms, businesses that provide repair services. The main features of monopoly are as follows (Larue, Gervais Pouliot, 2008): There is only one firm in the market, which affects the prices, adjusting the proposal; There are no identical products in the market; Controlling the market of raw materials in the industry, the company-monopoly excludes the emergence of new producers. Thus, the market of pure monopoly is the market of one seller. Most frequently, these are the governmental organizations, with the state monopoly able to solve various problems through pricing policies: To set a price below the cost for socially important goods to maintain their standard of living; To set a price covering the costs or providing a good income; To set a high price to reduce consumption. Returning to De Beers Company, for the last decade it has been undergoing changes turning into a more reliable company. A number of factors led to the necessity for transformation in the De Beers model (De Beers Company). In 2004 the company was declared guilty according to the 1994 accusation that De Beers had merged with General Electric to control the price of industrial diamonds; the company paid $10 million to the United States Department of Justice. Contemporary diamond industry is noticeably differs from that of the last decade, as it is now a complicated and continuously developing geopolitical notion. Today, apart from De Beers, the most important players in the diamond business are the African producer countries (e.g., Botswana and Namibia), Rio Tinto, Lev Leviev, BHP Billiton, Alrosa, Harry Winston, etc (De Beers Company). 3. Monopolistic Competition Luxury Watch Industry: Go to http://images.businessweek.com/ss/06/05/watches/source/1.htm (Retrieved May 17, 2010). This is an interesting article on luxury watches. Click on the slide show in the upper right window (check out the prices!). Are these three firms participating in a monopolistically competitive market? What characteristics of the good make the market monopolistically competitive? Explain. A recent study by the Luxury Institute has determined the watches that are considered by the wealthy consumers to be the best out of the top 17 ultra luxury watch producers: Franck Muller, Vacheron Constantin and Audemars Piguet, Patek Philippe and Breguet, though Rolex and Cartier were most famous brands. Nowadays, even not so well-known watchmakers take an equal part in monopolistic competition with the world leaders (Business Week, 2010). The market with monopolistic competition is characterized by the following features (Yomogida, 2010): The presence of multiple buyers and sellers (the market consists of a large number of independent companies and customers), the number of which doesnà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢t exceed the one present in pure competition. Low barriers for the entry into the industry. This does not mean that it is easy to start a monopolistically competitive firm; such difficulties as problems with registration, patents and licenses are still present. To survive in the market in the long run, monopolistically competitive firms need to produce diverse, differentiated products, which differ from that is offered by competing firms. Moreover, products may differ from one another by one or several properties (e.g. chemical composition of watches); Buyers and sellers are perfectly informed about market conditions; Predominantly non-price competition; advertising of products is very important for the development. Companies of this type have a negative slope of the demand curve. In monopolistic competition, the output is set at the level of profit maximization (marginal revenue equals marginal cost). However, when deciding on the establishment of prices for products, a monopolistic competitor acts like a monopolist: the price for the goods is set at the highest possible level, i.e. at the level of the demand curve for products. Just as at the market of perfect competition, in monopolistic competition the firm relies on the value of the average total costs, deciding whether to remain in the industry or leave the market. Thus, if the company continued to suffer losses, it means that the average total production costs exceed the established price per unit, and the firm will leave the market in the long run. It should be noted that, since the monopolistic competitor is dynamic in the decision-making, it cannot effectively allocate resources, which leads to inefficiency of such firms in the long run. It is practically impossible to have a positive profit at the market of monopolistic competition in the long term (Yomogida, 2010). 4. Oligopoly The OPEC Oil Cartel Go to www.opec.org (Retrieved May 17, 2010). What are the organizations stated goals, which countries are members, and when was it founded? Is it normal for them to be successful in keeping oil prices high, or have they faced difficulties in keeping the cartel united in the past? The Organization of the Petroleum Exporting Countries (OPEC) is an international intergovernmental organization (also called a cartel), established by oil-producing powers and including 12 countries: Iran, Iraq, Kuwait, Saudi Arabia, Venezuela, Qatar, Libya, United Arab Emirates, Algeria, Nigeria, Ecuador and Angola. The aim of OPEC is to coordinate and develop a common policy with regard to oil production among members of the organization, maintaining stable oil prices, providing a stable supply of oil to consumers, and benefit from the investments in the oil industry (OPEC). OPEC members control about 2/3 of world oil reserves. Their share in the world oil makes 40%, or nearly the half of the world oil exports. At different periods of its history, the Organization of Petroleum Exporting Countries controlled from 25% to 60% of oil production in industrial countries (Hansen Lindholt, 2008). At the same time, the cartel represents a very unstable structure, based on collusion in order to establish a monopoly price in the market, which can be unsatisfactory for some members of the cartel; this finally leads to the violation of the cartel agreement. At first glance, the similarity of the cartel and monopoly is obvious. But the cartel very rarely (in contrast to the monopoly), controls the entire market, because the policy has to deal with non-cartelized enterprises. In addition, the cartel members have quite a powerful temptation to cheat their partners, reducing prices or actively promoting their product, which creates the conditions for the capture of the market (Hansen Lindholt, 2008). Failure to fully and consistently use the cartel for the interaction of oligopolistic firms is forcing them to conduct secret economic policy in price changes and in the delineation of the spheres of influence. Such cooperation may manifest itself in the form of price rigidity or leadership in price formation, and through special organizations such as patent pools. The rigidity of prices is the oligopolistic practice, when, even with changes in costs or demand, an organization is not inclined to change prices, believing that if it has to raise the price, others will follow, which will lead to loss of market share. In this way, the cartel stays away from changing prices due to the fear to unleash the war of prices. Leadership in prices means the practice, when the formation of prices for the product is focused on the prices set by the leader often dominant in this industry. This demonstrates the kind of implicit collusion, although its presence is usually not proven (BÃÆ' ¶ckem, 2004). Patent pools represent an agreement on specialization and cooperation of production, and the consortium the union of firms to conduct joint scientific research and joint construction of large investment projects. Both of these organizations perform cartel functions and are the basis for the organization of conspiracy to divide the market. Thus, the oligopoly is characterized by three features: there are two or more competing firms in the industry, so that the industry is not monopolized (OPEC and Russia relation); demand curve has a falling character, so the industry does not have rules of free competition; at least one large organization operates in the industry, any action of which causes a reaction of competitors (OPEC oligopolistic practices), so that there is no monopolistic competition (BÃÆ' ¶ckem, 2004).