Knowledge Management. Chunnel Project FTA Final Research Paper

Knowledge Management. Chunnel Project FTA Final - Research Paper Example The Chunnel project faced innumerable challenges in its initiation phase. When there is lack of scope then it leads to resource planning, cost estimating as well as budgeting difficulties. Furthermore, the other challenge faced by Chunnel was related to air-conditioning cost as well as formation of Intergovernmental Commission (IGC). The project was bid at US$5.5 billion but it completed at US$14.9 billion. The project took extra US$8.4 billion of funds to complete successfully. It was also noted that the project required additional 19 months to complete. The main reasons behind the delay in the project were the alteration in the decision made by the IGC. It was noted that the decision of IGC to alter the design of the Eurotunnel from 600 mm doors to nearly 700 mm doors deferred the project to 9 months. It was because of the contractual agreement the project was not capable of paying much attention towards teamwork. During the course of the project, it was difficult for the team memb ers to come to a mutually agreeable solution when confronted with material issues because of the incomplete requirements as well as scope changes. Therefore, lack of communication seemed to be one of the significant challenges faced by Chunnel. During the development step, the project faced issues related to lack of investment in team building. Furthermore, project office did not consider previously leant lessons while preparing the project details. The project was making use of new technology and furthermore, it was an underground construction which was considered as a challenging task for the project manager and the workers. The control of the project was in the hands of financing banks as well as construction companies that paid due attention towards the factors of profit maximization as well as risk maximization. However, there was lack of focus upon the task of operations. With the implementation of the knowledge management

Random House Essay Example | Topics and Well Written Essays - 1000 words

Random House - Essay Example Therefore, the story is written, simply to paint a positive side on the illegal immigration saga, often painted in bad light and insensitivity, through documenting the resilience, courage and determination that it takes to brace the journey. This way, it opens an avenue for further scrutiny into the issue of illegal immigration, paving way for further societal engagement and alternative policy formulation. Analysis Reading this story, one thing remains clear; the immigration of children and mothers from the nearby countries into the United States, though illegal, no doubt remains acceptable, logical and justifiable, when perceived from the eye of humanity, compassion and reason. Poverty, abuse and domestic violence remain the common denominator for most of the illegal immigrants that flocks the USA every year ((Nazario, 112). This is especially true for children who must always device means of reuniting with their parents, after a long period of separation, which eventually tears dow n all the walls of patience. No wonder therefore, that 75% of the unaccompanied children in a detention center in Texas holding children caught by the INS illegally migrating into the USA, are seeking for their mothers (Nazario, 1). Different individuals may have different reasons for illegally immigrating into another country. However, it is only the ones with logical, justified and courageous hearts, who will withstand all the challenges posed by the immigration journey. Trekking the 1600 miles from Honduras to the USA, especially for an illegal immigrant is a journey that many would find not worth taking. There is virtually no comfort in such a journey, which greatly involves clinging on sides and tops of freight trains, unless one is the greeted with the kindness of strangers, who are on route to the country for different reasons, other than running away from the unbearable circumstances in their motherland. The journey is pretty hard for those immigrating from Mexico, but even harder for those emigrating from other regions like Enrique (Nazario, 2). It is therefore apparent that those seeking the fun of trekking will not withstand the harsh and hostile conditions characterized by the journey, and thus would opt not to make such attempts. Most of the illegal immigrants, and especially those who are children, brace the journey, since it is the only option they have left. Therefore, the author of the story seeks to document all the challenges involved in the immigration journey, through the exemplification of Enrique, who represents a thousand other children, apparently to tell the world that there is more than just the illegality of the migration. Thus, the story raises various critical questions. Is the emigration of children from Central America and Mexico into the USA justifiable? Can the society do something to avert the suffering endured by children left by their parents in sear’s border be reconciled with the need to avert the horrendous experi ences borne by immigrant children in search of their parents? The eminent risks of death, cruelty and

Waste, crowd and pollution management

Waste, crowd and pollution management 7.3 Site Management Strategies The Marina Barrage has many site management strategic plans in place, which include but are not limited to waste, crowd and pollution management. As Marina Barrage is an environmentally sustainable place, the management seeks to maintain its pristine image of sustainability. 7.3.1 Waste Management Waste management generally involves the collection, removal, processing, and disposal of materials considered as waste, which can be solid, gaseous, liquid, or even hazardous and are generally generated through human activity (Ekvall et. al., 2007). Proper waste management is important as it can cause many health, safety and even economic issues if not managed well (Giusti, 2009). Improper waste management is crucial to Marina Barrage as its image rides on its greenery. Its waste management policies ensure that the Marina Barrage is kept litter free as much as possible. This is done through the placement of litterbins strategically throughout the Marina Barrage. However, through observation, the team recommends that the number of litterbins should be increased to accommodate the large crowd numbers on the weekends. On weekends where the crowd numbers are significantly higher than on weekdays, rubbish bins tend to overflow due to the unavailability of sufficient bins along high volume areas such as the green roof. This would ensure that waste pollution is kept to a minimum and that its image as a sustainable and green destination is maintained (Kumar, 2014). 7.3.2 Crowd Management Crowd management must take into account all the elements of an event especially the type of event (circus, sporting, theatrical, concert, rally, parade, etc.), characteristics of the facility, size and demeanour of the crowd, methods of entrance, communications, crowd control, and queueing. As in all management, it must include planning, organizing, staffing, directing and evaluating. Particularly critical to crowd management is defining the roles of parties involved in an event, the quality of the advance intelligence, and the effectiveness of the planning process (Tubbs Meacham, 2007). For Marina Barrage, crowd management is vital as it provides a safe and organized setting for visitors. The Marina Barrage has excellent existing crowd management measures in place. The Marina Barrage would hardly be classified as an overcrowded destination on a day-to-day basis with the exception of days with events or festivals. Even so, event and festival organisers are monitored to ensure that t he crowd management does not go out of hand (PUB Occupation License, 2015). The team recommends that these measures should be maintained and perhaps upgraded through crowd management software with crowd forecast plans implemented. This ensures that crowd numbers are monitored well and overcrowding is prevented. 7.3.3 Safety Guidelines Safety Guidelines are regulations or rules that are put in place to ensure a product, event, etc., is safe and not dangerous (Vimlati et. Al., 2009). The Marina Barrage has many safety guidelines in place and most of which places public safety and wellbeing as its number one priority. Its safety guidelines include code of conducts for water activities, safety permits for both events and boat hoisting (Code of Conduct, 2015). Such practices help to prevent any safety infringements from happening and in turn could hurt visitors to the Marina Barrage. Safety and security are vital to provide a high quality tourism policy. In fact, the success or failure of a tourism destination depends largely on its capacity to provide visitors with a safe and secure environment (Tubbs Meacham, 2007). Besides physical safety aspects, the team recommends that the Marina Barrage should continue to ensure the social security of the destination. This should be relatively easy as Singapore is classified as one of the top five safe cities in the world (Bertrand, 2015). It will help build Marina Barrage and Singapore’s image as safe destinations to visit. Health safety aspects are also recommended to be looked at by the management. The annual haze Singapore faces could be a point to start from. In 2013, PSI levels reached dangerous levels of above 400 (Vaswani, 2013). The marina barrage could ensure public health and safety through measures such as advising the public to remain within the indoor sections such as the sustainable gallery. This could have a dual effect of ensuring public safety and public awareness of the gallery’s existence. 7.3.4 Accessibility and Infrastructure Public accessibility heavily influences tourists’ willingness to visit a tourism destination (Schofield et.al, 2010). Public accessibility via public transport such as MRT and bus services are available. However, due to the location of Marina Barrage, these services remain rather limited. For example the nearest MRT Station as of March 2015 is Bayfront MRT which is a 20 mins walk away and there is only one bus service ferrying visitors to the Marina Barrage. However, private vehicle access is truly excellent. The team recommends that upon completion of the Gardens by the Bay station along the Thomson-East Coast Line, sheltered walkways should be built between the MRT station and the Marina Barrage. Sheltered walkways should also be constructed between the existing bus stop located outside the Marina Barrage and the barrage itself along with bicycle rental kiosks to reduce the carbon footprint around the vicinity. Shuttle buses could also be implemented between nearby hotels ar ound the Marina area such as Marina Bay Sands Marina Mandarin to attract higher tourist numbers and raise the awareness of such an tourism destination. More public bus services can be proposed to the relevant government authorities or at the very least increase the frequency of the current service to cater to the needs of the public. This would help the Marina Barrage in its accessibility issues over the long run. Where visitor infrastructure within Marina Barrage is concerned, the overall review remains excellent. Detailed considerations have gone into the planning of the infrastructure of the place. The marina barrage is significantly wheelchair friendly though improvements can be made to make the sustainably gallery a little more wheelchair accessible as accessibility is a human right and basic need of people and should be a fundamental consideration during planning of urban destinations (Evcil, 2009). The team recommends to further enhance the Marina Barrage to make is complete ly barrier free to wheelchair bound visitors to enhance visitor experience and satisfaction. 7.3.5 Environmental Protection Environmental protectionis a practice of protectingthe naturalenvironmenton individual, organizational or governmental levels, for the benefit of both the natural environmentand humans (Heink Kowarik, 2010). As the marina barrage is touted as one of the greenest destinations in Singapore, its need for environmental sustainability and protection is high. Environmental protection is of outmost importance as it involves the protection of the natural environment on various governmental levels right up to individuals and can results in benefits for both people and the environment (Gonzalez, 2014). Green principles were thought through thoroughly during construction and operation of the barrage. Thus, the marina barrage reduces its electricity consumption and waste pollution significantly. The team recommends that the Marina Barrage apply more energy conservation measures to enhance its image as a sustainable green destination. This can be done by increasing its aircon temperature to 25 d egrees Celsius, adding more solar panels to its roof and perhaps and inclusion of an electricity generating water turbine in its outlet pumps. The additional solar panels can not only help to power the Marina Barrage but could be transported to the Marina Vicinity. This would reduce carbon footprint as well as greenhouse gas emissions in Singapore and increase its self-sustainability to run on green and clean energy generated through its day to day operations (Schulz, 2010).

The Futuristic Film, Bladerunner :: Movie Film Essays

The Futuristic Film, Bladerunner In this futuristic film, Harrison Ford is a Bladerunner, a man who by using an eye scanning machine and asking questions can determine if a person is really human or is rather genetically created. In the meantime, three of these non-humans find out they only have a four year lifespan and try to find a way, through foul means more than fair, to extend their lives. This culminates in a rather disturbing fight between the leader of these non-humans and Harrison Ford’s character. When one thinks of a futuristic movie that takes place in New York pictures of flying cars and strange cloths pop into the mind. These are in fact used. In addition to these items however, the city itself is portrayed in a very gloomy light. The very first scene of the movie is an aerial shot of the city at night. The audience can see noting but the outline of buildings and pinpricks of light that are the widows in these buildings. When we get down to street level we see other sources of light such as a digital billboard on the side of a building, car headlights, and light from nearby restaurants, but the overall feel is still dark and dismal. The buildings are all metal and it is constantly raining throughout the movie. Other things used to portray this dingy, dismal feel are open fires and trash in the streets. This feel of the city is contrasted when we go to the office of the man who created these non-humans. The sun is shinning so that we are blinded by it. One almost gets the feel that we are in Egypt because of the sun as well as the fact that the building is open having pillars rather than walls. We also see pyramid like buildings outside. But even this impression is temporary as the creator soon draws down a shade so that the Bladerunner can run his test on the girl. Another interesting portrayal of a building in this movie is the last one where the final battle is fought. It appears to be an abandoned department store as there are many floors and mannequins everywhere. It is literally falling apart, as we see when Harrison Ford crawls through a hole in the ceiling to get to another floor and when the non-human leader punches his head through the wall.

Demonstrating communication skills Essay

Communication with employees will guarantee alignment with the organization’s overall strategy (mission- vision- goals). Supervisors could use internal communication to provide a supportive working environment with a clear set of expectations for all staff. As a result employees will have a better understanding of the decisions made by the organizations, so supervisors could avoid miss expectations by developing and maintaining communication channels with employees. Figure (1) shows some channels to communicate strategic information 1. 1 Efficient Intranet â€Å"The intranet is one of the best and most valuable tools available for employee communication. A company intranet can help employees and HR save time by giving employees instant access to contact lists, company policies, announcements, training opportunities, and benefits information. † (Business & Legal Reports, 2007a1, p. 1). However, â€Å"the company should take some steps to achieve this communication channel such as: update frequently, make it simple and easy, provide a search feature, track the usage, organize locally according to departments ad teams, provide a starting page for each department, include files, documents, policies, and procedures, list phone extensions and contact lists, allow for feedback forms, use a content management. † (Business & Legal Reports, 2007a1, p. 1-2). 1. 2 Open Book Management Style or Dissemination of strategic information Rubin, L. and Merripen, C.(2003) presented this practice which includes sharing information with employees for better understanding of management decisions. Employees became better informed about the business and feel more inclusive and entrepreneurial about their contribution and impact. Then employees moved their focus from just their job to looking at the company as a whole. † (p. 4) Collins, R. and Druten, K. V. (2003) â€Å"found a strong link between organizational performance over the past three years and the emphasis placed on communicating information to all members about the organization’s purpose, aspirations, strategy and performance. † Figure (1) shows some communication channels that managers and supervisors could use to communicate strategic information with employees. Figure (1): Channels to communicate strategic information Source: Collins, R. and Druten, K. V. (2003). Human Resources Management Practices 1. Determining Effective Orientation and Training Methods 2. 1 Best practices for effective orientation New employees orientation is important to facilitate the integration of new employees in the organization with understanding the organization’s culture, mission, vision and values. Orsini, B. (2000) presented some best practices for new employees orientation such as: â€Å"sessions for new employees to introduce them to the organization and provide them with an overview of the organizational mandate and structure, mentoring new employees by a staff member, profile of employee new to group by within a local newsletter or e-mail, and office tours as an opportunity to meet staff face-to-face and get a sense of what they do†. 2. 2 Best practices for effective training methods. Training nowadays is not a luxury anymore. Due to the competitive marketplace and the complexity of jobs, training became a necessity for surviving and competing for both organizations and employees. Recently. There is â€Å"much greater emphasis on training as a means to cultivate, motivate, and retain quality workers†. (Hays, S. W. , 2004, p. 261) â€Å"Operationally, supervisors and managers are responsible for ensuring their employees get the training they need and/or the opportunity to attend the training classes. † (Bjomberg, L. , 2002) 2. 2. 1 Learning for life Program To show how could such practice help the organization, it’s useful to mention a real case study. For example, â€Å"Honeywell Limited’s Scarborough factory developed a learning for life program to improve productivity and quality and reduce costs in an effort to remain competitive in the global economy. Eighty percent of the factory participated in this program and Honeywell has increased its factory throughput by 180% and improved the quality of its products by 92%†. (The Conference Board of Canada, 1998, p. 5) This innovative program â€Å"developed more productive employees, increased productivity, improved quality, effective collaborative decision-making, improved communication skills. † (The Conference Board of Canada, 1998, p. 5) 2. 2. 2 Other best practices The Conference Board of Canada (1998) presented many other best practices in training or workplace literacy such as: ? Empowering adult learners ? Excellence in workplace literacy? Skills for a stable workplace ? Literacy through e-learning ? Establishing a baseline for training ? Peer tutoring: employee helping employees Such practices has resulted in increased productivity, reduced staff turnover, enhanced performance, improved quality, effective collaborative decision-making, improved communication skills, in another word, it helped in creating a positive environment for both the employer and employees because benefits was achieved for both of them. 2. Improving Productivity for Teams Improving productivity for teams and for employees in general is the ultimate goal for all organizations to maximize the overall performance. And because we are talking about humans or employees, improving productivity should include creating a convenient environment that could help them to work productively.

Hazards of e-Waste

Hazards of Electronic waste Electronic waste, e-waste, e-scrap, or Waste Electrical and Electronic Equipment (WEEE) describes loosely discarded, surplus, obsolete, or broken electrical or electronic devices. Informal processing of electronic waste in developing countries causes serious health and pollution problems. Some electronic scrap components, such as CRTs, contain contaminants such as lead, cadmium, beryllium, mercury, and brominated flame retardants.Even in developed countries recycling and disposal of e-waste may involve significant risk to workers and communities and great care must e taken to avoid unsafe exposure in recycling operations and leaching of material such as heavy metals from landfills and incinerator ashes. Scrap industry and USA EPA officials agree that materials should be managed with caution,and environmental dangers of unused electronics have not been exaggerated.Definitions â€Å"Electronic waste† may be defined as all secondary computers, entertai nment device electronics, mobile phones, and other items such as television sets and refrigerators, whether sold, donated, or discarded by their original owners. This definition includes sed electronics which are destined for reuse, resale, salvage, recycling, or disposal. Others define the re-usables (working and repairable electronics) and secondary scrap (copper, steel, plastic, etc. to be â€Å"commodities†, and reserve the term â€Å"waste† for residue or material which was represented as working or repairable but which is dumped or disposed or discarded by the buyer rather than recycled, including residue from reuse and recycling operations. Because loads of surplus electronics are frequently commingled (good, recyclable, and non-recyclable), several public olicy advocates apply the term â€Å"e-waste† broadly to all surplus electronics. The United States Environmental Protection Agency (EPA) includes discarded CRT monitors in its category of â€Å"hazard ous household waste†. l] but considers CRTs set aside for testing to be commodities if they are not discarded, speculatively accumulated, or left unprotected from weather and other damage. Debate continues over the distinction between â€Å"commodity† and â€Å"waste† electronics definitions. Some exporters are accused of deliberately leaving difficult-to-recycle, obsolete, or non- epairable equipment mixed in loads of working equipment (though this may also come through ignorance, or to avoid more costly treatment processes).Protectionists may broaden the definition of â€Å"waste† electronics in order to protect domestic markets from working secondary equipment. The high value of the computer recycling subset of electronic waste (working and reusable laptops, desktops, and components like RAM) can help pay the cost of transportation for a larger number of worthless pieces than can be achieved with display devices, which have less (or negative) scrap valu e.Problems Rapid changes in technology, changes in media (tapes, software, MP3), falling prices, and planned obsolescence have resulted in a fast-growing surplus of electronic waste around the glo e b . Dave Krucn o as For Laptops, regards electronic waste as a â€Å"rapidly expanding† issue. [2] Technical solutions are available, but in most cases a legal framework, a collection system, logistics, and other services need to be implemented before a technical solution can be applied. An estimated 50 million tons of E-waste is produced each year.The USA discards 30 million computers each ear and 100 million phones are disposed of in Europe each year. The Environmental Protection Agency estimates that only 15-20% of e-waste is recycled, the rest of these electronics go directly into landfills and incinerators. According to a report by UNEP titled, â€Å"Recycling – from E-waste to Resources,† the amount of e-waste being produced – including mobile phones and computers – could rise by as much as 500 percent over the next decade in some countries, such as India [3].The United States is the world leader in producing electronic waste, tossing away about 3 million tonnes each year. China already produces about 2. million tonnes (2010 estimate) domestically, second only to the United States. And, despite having banned e-waste imports, China remains a major e-waste dumping ground for developed countries Electrical waste contains hazardous but also valuable and scarce materials. Up to 60 elements can be found in complex electronics. In the United States, an estimated 70% of heavy metals in landfills comes from discarded electronics.While there is agreement that the number of discarded electronic devices is increasing, there is considerable disagreement about the relative risk (compared to automobile scrap, for xample), and strong disagreement whether curtailing trade in used electronics will improve conditions, or make them worse. Accor ding to an article in Motherboard, attempts to restrict the trade have driven reputable companies out of the supply chain, with unintended consequences. Electrical waste contains hazardous but also valuable and scarce materials. Up to 60 elements can be found in complex electronics.In the United States, an estimated 70% of heavy metals in landfills comes from discarded electronics. While there is agreement that the number of discarded electronic devices is increasing, there is considerable disagreement about the elative risk (compared to automobile scrap, for example), and strong disagreement whether curtailing trade in used electronics will improve conditions, or make them worse. According to an article in Motherboard, attempts to restrict the trade have driven reputable companies out of the supply chain, with unintended consequences.Global trade issuesOne theory is that increased regulation of electronic waste and concern over the environmental harm in mature economies creates an economic disincentive to remove residues prior to export. Critics of trade in used electronics aintain that it is too easy for brokers calling themselves recyclers to export unscreened electronic waste to developing countries, such as China, India and parts of Africa, thus avoiding the expense of removing items like bad cathode ray tubes (the processing of which is expensive and difficult). The developing countries are becoming big dump yards of e-waste.Proponents of international trade point to the success of fair trade programs in other industries, where cooperation has led creation of sustainable Jobs, and can bring affordable technology in countries where repair and reuse rates are higher. Defenders of the trade in used electronics say that extraction of metals from virgin mining has also been shifted to developing countries. Hard-rock mining of copper, silver, gold and other materials extracted from electronics is considered tar more environmentally damaging than the recycling ot those materials.They also state that repair and reuse of computers and televisions has become a â€Å"lost art† in wealthier nations, and that refurbishing has traditionally been a path to development. South Korea, Taiwan, and southern China all excelled in finding â€Å"retained value† in used goods, and in some cases have set up billion-dollar ndustries in refurbishing used ink cartridges, single-use cameras, and working CRTs. Refurbishing has traditionally been a threat to established manufacturing, and simple protectionism explains some criticism of the trade.Works like â€Å"The Waste Makers† by Vance Packard explain some of the criticism of exports of working product, for example the ban on import of tested working Pentium 4 laptops to China, or the bans on export of used surplus working electronics by Japan. Opponents of surplus electronics exports argue that lower environmental and labor standards, cheap labor, and the relatively high value of recover ed raw materials leads to a ransfer of pollution-generating activities, such as burning of copper wire.In China, Malaysia, India, Kenya, and various African countries, electronic waste is being sent to these countries for processing, sometimes illegally. Many surplus laptops are routed to developing nations as â€Å"dumping grounds for e-waste†. Because the United States has not ratified the Basel Convention or its Ban Amendment, and has no domestic laws forbidding the export of toxic waste, the Basel Action Network estimates that about 80% of the electronic waste directed to recycling in the U. S. does not get ecycled there at all, but is put on container ships and sent to countries such as China.This figure is disputed as an exaggeration by the EPA, the Institute of Scrap Recycling Industries, and the World Reuse, Repair and Recycling Association. Independent research by Arizona State University showed that 87-88% of imported used computers did not have a higher value than the best value of the constituent materials they contained, and that â€Å"the official trade in end-of-life computers is thus driven by reuse as opposed to Guiyu in the Shantou region of China, Delhi and Bangalore in India as well as the Agbogbloshie site near Accra, Ghana have lectronic waste processing areas.Uncontrolled burning, disassembly, and disposal causes a variety of environmental problems such as groundwater contamination, atmospheric pollution, or even water pollution either by immediate discharge or due to surface runoff (especially near coastal areas), as well as health problems including occupational safety and health effects among those directly and indirectly involved, due to the methods of processing the waste. Thousands of men, women, and children are employed in highly polluting, primitive recycling technologies, extracting he metals, toners, and plastics from computers and other electronic waste.Recent studies show that 7 out of 10 children in this region have too much lead in their blood Proponents of the trade say growth of internet access is a stronger correlation to trade than poverty. Haiti is poor and closer to the port of New York than southeast Asia, but far more electronic waste is exported from New York to Asia than to Haiti. Thousands of men, women, and children are employed in reuse, refurbishing, repair, and remanufacturing, unsustainable industries in decline in developed countries.Denying developing nations access to used electronics may deny them sustainable employment, affordable products, and internet access, or force them to deal with even less scrupulous suppliers. In a series of seven articles for The Atlantic, Shanghai-based reporter Adam Minter describes many ot these computer repair and scrap separation activities as objectively sustainable. Opponents of the trade argue that developing countries utilize methods that are more harmful and more wasteful. An expedient and prevalent method is simply to toss equipment o nto an open fire, in order to melt plastics and to burn away unvaluable metals.This releases carcinogens and neurotoxins into the air, contributing to an acrid, lingering smog. These noxious fumes include dioxins and furans. [18] Bonfire refuse can be disposed of quickly into drainage ditches or waterways feeding the ocean or local water supplies. Recycling Today the electronic waste recycling business is in all areas of the developed world a large and rapidly consolidating business. Part of this evolution has involved greater diversion of electronic waste from energy-intensive downcycling processes (e. . , conventional recycling), where equipment is reverted to a raw material form. This iversion is achieved through reuse and refurbishing. The environmental and social benefits of reuse include diminished demand for new products and virgin raw materials (with their own environmental issues); larger quantities of pure water and electricity for associated manufacturing; less packaging per unit; availability of technology to wider swaths of society due to greater affordability of products; and diminished use of landfills.Audiovisual components, televisions, VCRs, stereo equipment, mobile phones, other handheld devices, and computer components contain valuable elements and substances suitable for reclamation, including lead, opper, and gold. One of the major challenges is recycling the printed circuit boards from the electronic wastes. The circuit boards contain such precious metals as gold, silver, platinum, etc. and such base metals as copper, iron, aluminum, etc. Conventional method employed is mechanical shredding and separation but the recycling efficiency is low.Alternative methods such as cryogenic decomposition have been studied for printed circuit board recycling, and some other methods are still under investigation. Hazardous Americium: smoke alarms (radioactive source). Mercury: fluorescent tubes (numerous applications), tilt switches (mechanical oorbell s, thermostats). [37] Sulfur: lead-acid batteries. PBBs: Predecessor of PCBs. Also used as flame retardant. Banned from 1973-1977 on. PCBs: prior to ban, almost all 1930s-1970s equipment, including capacitors, transformers, wiring insulation, paints, inks, and flexible sealants. Banned during the 1980s.

Simple Établir (to Establish) Conjugations in French

Simple Établir (to Establish) Conjugations in French The French verb  Ãƒ ©tablir  means to establish. This is a relatively easy one to remember because it resembles the English word and the conjugations arent terribly difficult, either. Conjugating the French Verb Établir Verb conjugations are required when we want to change the tense. In English, we add -ed or -ing to do this, but its more complex in French. Thats because theres a new verb ending for ​every subject pronoun as well as every tense. Établir  is a  regular -IR verb  and it follows the verb conjugation rules of similar verbs like  convertir  (to convert),  chà ©rir  (to cherish), and many others. This makes learning each new verb a little easier than the last. To conjugate these verbs, we must first recognize the verb stem. For  Ãƒ ©tablir, that is  Ãƒ ©tabl-.  Then we need to add the appropriate ending. For instance, I establish is jà ©tablis and we will establish is nous à ©tablirons. Subject Present Future Imperfect j tablis tablirai tablissais tu tablis tabliras tablissais il tablit tablira tablissait nous tablissons tablirons tablissions vous tablissez tablirez tablissiez ils tablissent tabliront tablissaient The Present Participle of Établir Adding -ant  to the verb stem of  Ãƒ ©tablir  creates the  present participle  of  Ãƒ ©tablissant. This is a verb, yet it can also be used as an adjective, gerund, or noun in certain circumstances. The Past Participle and Passà © Composà © The past tense established can be formed using either the imperfect or the  passà © composà ©. To construct the latter, begin with the subject pronoun, conjugate the  auxiliary verb  avoir  to match it, then add the past participle  Ãƒ ©tabli. It comes together quickly: I established is jai à ©tabli and we established is nous avons à ©tabli. You will notice that  ai  and  avons  are conjugates of  avoir  and that the past participle does not change. Apply these rules to other subjects as well. More Simple Établir  Conjugations Practicing all of the above forms of  Ãƒ ©tablir  should be the focus of your studies at first. When youre comfortable with those, consider adding the following to your vocabulary.  Even if you dont use them personally, its important to be able to recognize these and associate them with  Ãƒ ©tablir. When the act of establishing has some question or uncertainty to it, the subjunctive form or the conditional verb can be used. Its likely that you will only encounter the passà © simple and imperfect subjunctive in formal writing.   Subject Subjunctive Conditional Pass Simple Imperfect Subjunctive j tablisse tablirais tablis tablisse tu tablisses tablirais tablis tablisses il tablisse tablirait tablit tablt nous tablissions tablirions tablmes tablissions vous tablissiez tabliriez tabltes tablissiez ils tablissent tabliriez tablirent tablissent For short statements that directly request or demand something to be established, use the imperative verb form. When doing so, the subject pronoun is not required: use à ©tablis rather than tu à ©tablis. Imperative (tu) tablis (nous) tablissons (vous) tablissez