Heterogeneous Definition (Science)

Heterogeneous Definition (Science) The word heterogeneous is an adjective that means composed of different constituents or dissimilar components. In chemistry, the word is most often applied to a heterogeneous mixture. This is one which has a non-uniform composition. A mixture of sand and water is heterogeneous. Concrete is heterogeneous. In contrast, a homogeneous mixture has a uniform composition. An example is a mixture of sugar dissolved in water. Whether a mixture is heterogeneous or homogeneous is largely dependent on the scale or sample size. For example, if you look at a container of sand, it may appear to have evenly distributed particles (be homogeneous). If you viewed the sand under a microscope, you might find unevenly distributed clumps of different materials (heterogeneous). In materials science, specimens may consist entirely of the same metal, element, or alloy, yet display heterogeneous phases or crystal structure. For example, a piece of iron, while homogeneous in composition, might have regions of martensite and others of ferrite. A sample of the element phosphorus might contain both white and red phosphorus. In the broader sense, any group of dissimilar objects may be described as being heterogeneous. A group of people might be heterogeneous with respect to age, weight, height, etc.

Supply Chain Management Essay

Supply Chain Management Essay Supply Chain Management Essay Introduction Majors in supply chain management focuses on processes of excellence for the organization. Supply chain management focuses of the flow of information, services and goods that target at delivering maximum value to the organization’s customers. Supply management has the responsibility of supplying services and goods that the organization deals with to the customers. They also manage the transformation and conversion processes that target at converting input to output. Supply chain management functions within the scope of organizing, planning and controlling the flow of bought materials within the organization. The Majors gives close attention to the analysis and selection of vendors, price determination and value analysis. Supply chain Majors also have the responsibility of disposing surplus and scrap materials. It places emphasis on the efficient application and usage of transportation by the management of business within the framework of logistics. Supply chain manages resourc es, procurement, fabrication, production, storage and production. It consists of interconnected components, which are required for the transformation of ideas to delivered services and products. Through execution, Exel operated most part of the supply chain. These traditional activities lowered the costs of storing and moving products and improving the speed of delivery for HM. However, this represents a minute portion of the capabilities of the firm. Using the execution strategy, supply chain did not manage costs and opportunities available to customers. This included opportunities in the matching of supplies and demands. This is where the firm could manage the highest payoff. The planning function of supply chain has the potentials of enabling the firm attain its allocation and purchasing functions. Planning also ensures that the firm has better execution capabilities. Planning eliminates instances of the â€Å"just in case† behaviors that occur in ordering extra inventory. Planning has the potentials of ensuring that the firm’s shipments reach the customers on time. Planning confers deeper knowledge of supply chain, which would result to enormous savings. For instance, the lack of knowledge resulting from failures in execution would strain the firm in realizing the advantages of cost savings arising from consolidated trucks. Planning eliminates risks because of the expansion of the relationship between customers and the firm. Planning enables the exchange of greater stakes in the activities of the firm and its performance. Technology firms have approached Exel for a portion of its financial planning in order to increase their share of savings. Planning increases the confidence of the firm, which enables it exceed expectations. A clear understanding of the strategy will enable the firm move swiftly with its planning strategy. One of the executives at Exel noted that he needed to present a case for moving towards planning strategies for its supply chain. The ability of the execution team to execute the plans developed by the firm plays an enormous role in ensuring that the firm continuously develops creative planning strategies. Execution ensures the firm can lower the cost of storage and transportation and deliver products to customers effectively. The firm should become aware of the potentials of adding operations to its expertise, and to the customer is a planning function. The ability of ensuring smooth planning in allocation and purchasing requires the execution team performs effectively and understands its role. Planning and execution should be carried out jointly to ensure that nothing goes wrong in the supply chain. Professional essay writers at company can provide you with a high-quality custom essay on Supply Chain Management written from scratch!

Corona positive and negative effect on high voltage technology ( Research Paper

Corona positive and negative effect on high voltage technology ( engineering) - Research Paper Example The process by which a current flows into a neutral fluid (air) from an electrode with high potential, by ionizing the fluid in order to create a plasma region around the electrode, is known as corona discharge. Charge is then passed to the nearby areas of lower potential by the ions, or the ions may recombine and form neutral gas molecules. A large enough potential gradients at a point cause the fluid at that point to be ionized and become conductive. A charged object with a sharp point causes the electric field strength around the point to be much higher than elsewhere. When the air around this point becomes conductive, it increases the apparent size of the conductor, making the new conductive region less sharp. This makes the ionization region not able to extend past this local region. Outside the region of conductivity and ionization, the charged particles will find their way to an opposite charged object where they will be neutralized. During the formation of corona, the air around the conductor becomes conductive. This leads to a virtual increase in the effective diameter of the conductor. Due to the increased diameter, the electro-static stresses reduce between the conductors. This reduces the maximum voltage gradient between the conductors. Coronas can be used to eliminate particulate matter from the air streams. The air is first charged, the charged stream is passed through a comb of alternating polarity. This is done to deposit the charged particles onto the oppositely charged plates Corona is able to generate sound energy during its activity. This audible noise can be able to increase during foul weather conditions especially with a lot of rain. Rainwater drops may collect at the surface of the conductors thereby increasing the corona activity, which will make the humming, or crackling sound to be heard especially near transmission lines. Corona is also responsible for causing radio frequency noise especially near transmission lines.

What has happened to careers To what extent can and should HRM be a Dissertation

What has happened to careers To what extent can and should HRM be a part of career management - Dissertation Example Since the world is changing at a rapid pace, the economic, cultural, political and technological changes have an immense impact upon the world of work. Moreover, due to uncertainties that accompany with them, these changes can have an adverse effect on the career and lives of the people.In the present competitive era, careers have become too challenging than they used to be. This means that an attempt has to be made to manage the careers. The term career can be defined as the sequence of the job related roles and positions, activities and experiences that are encountered by the person (Anderson & Et. Al., 2002). The major objective of the proposed study is related to the career management. The study will try to focus on the research questions which would look to address the existing scenario regarding careers along with to what extent HRM (Human Resource Management) can or should be a part of career management. Through this proposed research paper it is intended to identify the role of the HRM in career management. Various steps of career management process involve career exploration, development of the career goals and the use of various strategies in order to achieve the career goals. The question that now arises is whether the career management is related to the employee’s development and the performance. For this purpose the relationship that exists among the different aspects of the career management steps as well as the development behaviour of the employee need to be gauged. In this regards, the employees can provide information by considering their personal characteristics, career management strategies, the support of their managers for the career development and their willingness to participate in the development activities. On the other hand, the managers can appraise the performance of the employees and the development behaviour. In this regard, it can be identified that the managers support development. Distance from career goals brings about significant differences in the willingness of the employees to participate in the development activities along with development behaviour (Noe, 1996). It has been argued by the authors and the researchers that the career management programs in formal organisations are part of the firms’ overall human resource strategies. The career management programs are adopted by the organisation in a belief that the performance of the individuals will be enhanced and it will increase the employee’s commitment. If the career management systems are implemented without enough preparation of the organisation, then it might result to ineffective and misleading programs. If the organisation is involved in the individual’s career planning activities, then it might help to reduce the uncertainty that the employees face. It will also assist them in planning and help them in yielding positive results for the organisations (Portwood, 1987). With regards to the question about the exist ing scenario regarding careers, it can be denoted that there has been little changes in the world of work and the career of the people. Support for changing the focus upon the career stems from the psychologically grounded ideas about people as sculptors of their own careers. It also comes from the fact that the person themselves are the creator of the personal meaning in their lives (Arthur & Et. Al., 1999). The HRM systems of the organisation that would include the workforce planning and staffing procedures, career management and the training and development efforts have to be consistent with the strategic plans of the firms. If the objective of the company is to downsize and shed the business, then in that case the HRM system and the related career programs will be concerned

Power in Congress Essay -- essays research papers

Power In and Over Congress I feel the system is biased because there are inequalities among the representation and participation of interest groups and constituents in the political system. Unfortunately, poor and uneducated citizens aren’t as organized as interest groups, lobbyists and PACs because they lack the money, resources and connections necessary to influence congress members on legislative bills. It is evident that, â€Å"businesses, interest groups and labor unions are spending more than $100 million a month to lobby the federal government†(Associated Press, SFC, 3/7/98). â€Å"The actual population of interest groups in Washington surely reflects that there is a class bias in the membership of interest groups†(JBG). â€Å"Interest groups are organized bodies of individuals who share some political goals and try to influence public policy decisions. Representatives from interest groups are referred to as lobbyists† (JBG). â€Å"Lobbyist seek to bring about the passage or defeat of legislative bills and to influence congress, often using large sums of money in a variety of ways to influence legislative outcomes† (APD). I feel that lobbyists have a great deal of influence within congress because they may have direct connections with congress members in high positions. Through PACs, organizations can pool campaign contributions from group members and donates those funds to candidates for political office. Personally, I feel that PACs have the most influence over congress because their ...

Environment Obligation of Chevron Corporation

Corporate Environment Obligation: An examination of the performance of Chevron Corporation Nowadays, increasing customers worried about the negative effects that large companies put on environment especially some energy industries. Chevron Corporation is one of largest multinational energy corporations in the world which has branch offices in more than 100 countries. It is engaged in all the aspects of gas and crude oil, which include exploration, production, marketing, chemicals manufacturing and so on (Chevron Corporation. n. d. ).Although Chevron produce energy to power economic growth of America, even the whole world, the environmental problems it caused has aroused great public concern. This essay analyses the environmental contamination caused by Chevron Corporation operation, specifically in two cases: environmental atrocity in the Ecuador and Brazil oil spills. On the other hand, it describes some positive measures that Chevron takes to protect the environment which is focus on the following areas: protecting the environment, respecting biodiversity and preserving freshwater resources.The case against Chevron Corporation In order to satisfy the tremendous oil demand of America, Chevron drill for more oil in other countries all over the world which heavily harm the ecosystems and communities in many countries such as Africa, South American and other nations. As a frontrunner in energy industry, Chevron also wants to gain more profit. For example, despite of the economic recession in 2008, Chevron still planned to increase total revenues by 25%, which is approximately $263 billion US Dollar.Chevron was concerned with environmental practices and business coincidentally, leading to huge environmental damage in some countries especially in Ecuador where the largest environmental lawsuit took place in the world. Early in the 1960s, Chevron began to prospect oil in Ecuador. It got a lot of money and then ran, leaving many environmental problems in the country (Julie, S. 2009 ). On February 28, 2011, Chevron Corporation was fined over $19 billion dollars by Ecuadorian Court because the oil and gas operations severely damaged the Amazon rainforest in Ecuador (Mark, W. 011). There are a lot of evidences showing Chevron destroy the Amazon rainforest in Ecuador. In order to reduce cost, Chevron dumped more than 18 billion gallons of poisonous waste into Amazon waterways during 1964 to 1990. These waste caused seriously environmental pollution to six indigenous groups in Amazon rainforest and at present, one of them is extinct and other five groups lost majority of their ancestral lands. Chevron also abandoned a large quantity of waste pits which are filled with noxious sludge that contain carcinogens like benzene and chromium VI to Amazon forest.In the past few decades, these toxic substances migrated into soils, groundwater and stream that are the main source of drinking water for local residents. The toxins may cause reproductive problems, immune system damage, nervous system impairment and a number of other health problem to human beings ( Chevron’s Top Ten Lies: Chevron’s Ten Biggest Lies About the Ecuador Suit. n. d. ). In 2011 December, Chevron Corporation was imposed a fine of over $10 billion by Brazilian federal prosecutors due to environmental contamination caused by oil spill in northeastern coast of Rio de Janeiro state.The crude oil began to leak on 7 November caused by underestimating the pressure in an underwater reservoir which led to oil rush up a bore hole of a drilling platform and then ran into seabed around it. The oil spilled out from more than 7 narrow fissures at the bottom of the sea. Finally, the oil leak was under control until the end of November but there was still some residual oil seeping from the crevices. In addition, Chevron Corporation lack of environmental planning and management.According to an investigation by the attorney general’s office, Chevron did not have the capability to control the pollution that was caused by the spill of about 3000 barrels of oil. Chevron was criticized harshly by the petroleum regulatory agency and local ministry because it did not share the oil spills information at the beginning and did not have any emergency equipment to deal with such situation on hand. (Brazil Sues Oil Giant Chevron For $10. 85 Billion Over Offshore Leak. 2011). The case for Chevron CorporationOn the contrary, Chevron Corporation continuously optimizes its operating processes to reduce waste and pollution and to preserve natural resources as well as environment. In 2007, Chevron has developed an Environmental, Social and Health Impact Assessment (ESHIA) process to evaluate new project for health and environmental impacts. ESHIA process is used to minimize the serious negative impacts and to enhance the benefits when a project is being planned, operated and decommissioned. Stakeholder engagement is the most mportant aspect to this process t hroughout the life of a project. EDHIS has already been applied for about 700 capital projects all over the world, for instance the Frade Field in the Campos Basin offshore Brazil. Chevron Brasil is cooperating with Federal University of Rio Grande to research the species and distribution of marine mammals like dolphins and whales in Frade Field area. The purpose of this project is to identify and monitor the congregation area of dolphins and whales and establish the conservation areas ( Environment. 2011)Diversity ecosystem plays a significant role in sustainable development by providing necessary economic benefits to the whole society and human beings, like clothing, food, fuel, shelter and so on. However, the natural biodiversity in most area of the world is under serious threat in modern society. Chevron is committed to preserve the biodiversity of the environment (Biodiversity Statement. 2011). one of the most successful example is Salak Project of Chevron. The Gunung Halimun S alak National Park is the largest primitive forest in Indonesia which is quite near from the nation’s capital, Jakarta.The main task of Chevron in Salak is to produce energy to support the economic growth of Indonesia. At the same time, Chevron is working closely with park rangers, local farmers and international wildlife groups to preserve some endangered animals in the area, like hawk eagles, leopards and gibbons. Through this project, Chevron proves to the public that environmental protection and energy production can coexist peacefully (Delivering Energy, Respecting Nature. n. d. ). Fresh water is a basic economic and environmental resource.As an international corporation, Chevron recognizes that preserving useful water is necessary to their business and communities. Because of this reason, an integrated freshwater management strategy was developed by Chevron to enhance the water management process throughout the whole company. Also, a global position statement on fresh w ater was developed to emphasize this significant resource. In Kem County, Chevron cooperated with the Cawelo Water District, providing the local farmers water for agricultural.Water is one of the most important byproduct of the steamflooding technology which Chevron use to coax crude oil from underground. In California, Chevron collaborated with two water treatment plants to reform ponds which were used by Chevron before. The new use of the ponds is to prevent sewage from flowing into San Francisco Bay during large storms (Environment. 2011). Conclusion Overall, the behavior of Chevron Corporation to the environment has been amalgamated. On positive side, Chevron developed the ESHIA process to evaluate new project which minimize the negative impacts to environment.At the same time, Chevron always combines biodiversity considerations into their ESHIA process when evaluating a project or make a decision. In their Salak Project, Chevron protects the endangered animals in the area while they are producing energy. The project could also benefit different stakeholders, such as the local farmers, and encourage them to protect the environment. In addition, Chevron commits itself to preserving freshwater resource, so an integrated corporate freshwater management strategy as well as a global position statement on fresh water was developed to protect this critical resource.However, in order to get tidy profit, Chevron leaves huge environmental problems to a number of countries. There are many evidences showing that Chevron did not perform the social responsibilities to environment. In Ecuador, Chevron dumped a large quantity of poisonous waste into Amazon rainforest which seriously damage the ecological balance in that area. In addition, some waste they abandoned contains carcinogenic chemicals which may lead to reproductive problems, immune system problem to local residents. Public expect that the activities of Chevron do not harm the environment as much as possible.How ever, driven by the huge interest, the company contaminate natural environment to a large extent. Also it is shown that Chevron lack of environmental planning and management. In the Brazil oil spills, Chevron did not have the capability to control the pollution caused by oil spill. Even though Chevron was heavily fined as a punishment, the environmental problems it caused can not be solved. The negative environmental effects of Chevron Corporation far outweigh its positive impacts, resulting in an unsatisfactory environmental effort. References: Biodiversity Statement. 2011. http://www. chevron. om/globalissues/ environment/ biodiversity/ (accessed March 22, 2012) Brazil Sues Oil Giant Chevron For $10. 85 Billion Over Offshore Leak. 2011. http://articles. businessinsider. com/2011-12-15/news/30518769_1_oil-drilling-brazilian-officials-leak (accessed March 22, 2012) CHEVRON CORPORATION. n. d. http://www. texaco. com/trust-texaco/ chevron-corp. aspx (accessed March 19, 2012) Chevronâ €™s Top Ten Lies: Chevron’s Ten Biggest Lies About the Ecuador Suit. n. d. http://www. texacotoxico. org/eng/node/278 (accessed March 21, 2012) Delivering Energy, Respecting Nature. n. d. http://www. chevron. om/stories /#/allstories/salakrespectingnature/producingenergyrespectfully/ (accessed March 23, 2012) Environment. 2011. http://www. chevron. com/globalissues/environment/ (accessed March , 2012) Julie, S. 2009. â€Å"60 Minute† exposes Chevron’s environmental atrocity in the Amazon. http://matadornetwork. com/change/60-minutes-exposes-chevrons-environmental-atrocity-in-the-amazon/ (accessed March 20, 2012) Mark, W. 2011. Aguinda v. Chevron Corporation – Environmental Justice or Sham? http://www. acoel. org/post/2011/04/15/Aguinda-v-Chevron-Corporation-Environmental-Justice-or-Sham-. aspx (accessed March 20, 2012)

Shakespeares Brothers and Sisters

William Shakespeare came from a large family and had three brothers and four sisters ... although not all of them lived long enough to meet their most famous sibling! William Shakespeares brothers and sisters were: Joan ShakespeareMargaret  Shakespeare Gilbert  ShakespeareJoan  ShakespeareAnne  ShakespeareRichard  ShakespeareEdmund  Shakespeare Much is known of Shakespeare’s mother Mary Arden whose house in Wilmcote near Stratford-upon-Avon remains a tourist attraction and functions as a working farm. His father John Shakespeare, also came from farming stock and became a Glover. Mary and John lived in Henley Street Stratford upon Avon, John worked from his house. This is where William and his siblings were brought up and this house is also a tourist attraction and it is possible to see exactly how Shakespeare and his family would have lived. John and Mary had two children before William Shakespeare was born. It is not possible to give the exact dates as birth certificates were not produced in those times. However, due to high mortality rates, it was customary to have the child baptised as soon as three days after the birth so the dates given in this article are based on that assumption. Sisters:Joan and MargaretShakespeare Joan Shakespeare was baptised in September 1558 but sadly died two months later, her sister Margaret was baptised on December 2nd 1562 she died aged one. Both were thought to have caught the prolific and deadly bubonic plague. Happily William, John and Mary’s first born son was born in 1564. As we know he lived a very successful life until he was 52 and died in April 1616 on his own birthday. Brother:Gilbert Shakespeare In 1566 Gilbert Shakespeare was born. It is thought that he was named after Gilbert Bradley who was a burgess of Stratford and was a Glover like John Shakespeare. It is believed that Gilbert would have attended school with William, being two years younger than him. Gilbert became a haberdasher and followed his brother to London. However, Gilbert often returned to Stratford and was involved in a lawsuit in the town. Gilbert never married and died a bachelor aged 46 in 1612. Sister:Joan Shakespeare Joan Shakespeare was born in 1569 (It was customary in Elizabethan England for children to be named after their dead siblings). She married a hatter called William Hart. She had four children but only two survived, they were called William and Michael. William, who was born in 1600, became an actor like his uncle. He never married but it is thought he had an illegitimate child called Charles Hart who became a famous actor of the time. William Shakespeare gave permission for Joan to live in the western   house on Henley street (There were two houses) until her death at the ripe age of 77. Sister: Anne Shakespeare Anne Shakespeare was born in 1571 she was the sixth child of John and Mary but sadly she only survived until she was eight years old. It is thought that she also died of the bubonic plague. She was given and expensive funeral despite the family experiencing financial problems at the time. She was buried on April 4th 1579. Brother:Richard Shakespeare Richard Shakespeare was baptised on March 11th 1574. Little is known about his life but the families fortunes were in decline and as a result it is very likely that Richard did not receive an education like his brothers and he would have stayed home to help with the family business. Richard was buried on February 4th 1613. He died aged 39. Brother: Edmund Shakespeare Edmund Shakespeare was baptized in 1581, he was sixteen years William’s junior. By this time the Shakespeare’s fortunes had recovered. Edmund followed in his brother’s footsteps and moved to London to become an actor. He died aged 27 and his death is also attributed to the bubonic plague which had already claimed 3 of his sibling’s lives. William paid for Edmund’s funeral which was held in Southwark London 1607 and was attended by many famous actors from the Globe. After having eight children Mary, Shakespeare’s mother lived to the grand age of 71 and died in 1608. John Shakespeare, William’s father also lived a long life, dying in 1601 aged 70. Only their daughter Joan lived a longer life than them dying at 77.