Biofuels Will Give Greater Energy Efficiency Environmental Sciences Essay Free Essays

Biofuel refers to any solid, liquid or gas fuel that has been derived from biomass.1 Biofuels are renewable fuels derived from vegetable affair. It can be produced from any C beginning that is easy to stock up, such as workss. We will write a custom essay sample on Biofuels Will Give Greater Energy Efficiency Environmental Sciences Essay or any similar topic only for you Order Now Alternative fuel beginnings such as biofuels are attractive because they can be developed and they are more sustainable, cost-effectively and renewable energy. Biofuels will give greater energy efficiency and alterations in life styles. Biofuels have become chief concern issue in Brazil, the US, the European Union every bit good as many other states around the universe, due to concerns of oil dependance and involvement in cut downing CO2 emanations. All these parts have had important subsidies or authorizations for renewable energy production from agricultural beginnings. The most common schemes used to bring forth biofuel used for transit are: Grow workss – Plants that of course produce oils include oil thenar, Jatropha, soya bean and algae. When heated opposition ( viscousness ) is reduced they can be burned within a diesel engine or they can be processed to organize biodiesel1. Grow sugar harvests or starch – These include sugar cane, sugar Beta vulgaris, maize and corn which are so turned into ethyl alcohol through the procedure of barm agitation 1. Forests – By-products from forests can be converted into biofuels including methyl alcohol, ethyl alcohol and woodgas1. In Brazil, ethyl alcohol is produced chiefly from sugar cane get downing during the 1970s in order to cut down dependance on foreign oil2. However, the ethyl alcohol industry had a reverse in the 1990s due to inexpensive petroleum oil. When oil monetary values began to surge once more in the recent old ages, ethyl alcohol became a more attractive option to gasoline, aided by the launch of flex-fuel vehicles ( FFVs ) in 2003 3. Brazil has a comparative advantage in bring forthing ethyl alcohol, chiefly due to its handiness of land and its favorable clime for sugarcane cultivation. There are many different biofuels available in the UK. One of the most common worldwide is E10 fuel, which is really a mixture of 10 % ethyl alcohol and 90 % petroleum1. Advantages Biofuels cut down nursery gas emanations when compared to conventional conveyance fuels. Harmonizing to a technique called Life Cycle Analysis first coevals biofuels can salvage up to 60 % of C emanations compared to fossil fuels1. This was backed by a recent UK Government publication which stated biofuels can cut down emanations by 50-60 % . This is because the C dioxide they release when burnt is equal to the sum that the workss absorbed out of the ambiance. Therefore, they do n’t lend to planetary heating and besides emit less particulate pollution than other fuels, particularly Diesel. However, it does necessitate some fuel to power the machinery on the farms where biofuels are produced. With gasoline monetary values on the rise, replacing crude oil with a renewable energy beginning should besides offer important nest eggs at the pump in the long term ; peculiarly when biofuels are more readily available and Biofuels are besides cheaper than fossil fuels. Many authoritiess are now offering revenue enhancement inducements to purchase greener autos that run on biofuels. This one of the brinies grounds production of biofuels is increasing. Another advantage is that biofuels are assisting to undertake poorness around the universe. For illustration Brazil invested to a great extent in ethanol production during the energy crisis of 1970s and now has one of the universe ‘s most advanced production and distribution systems3. This has increased economic growing, increased employment chances and besides positive consequence on energy monetary values, as grounds to endorse biofuel production. This is nevertheless debated due to the force per unit areas it places on agricultural resources but biodiesel could be a long term solution as it uses simpler engineering and lower transit costs aboard increased labor. Other advantages are: Does n’t necessitate any extremist alterations to exchange to the usage of biofuels- unlike the troubles in exchanging to other renewable energy beginnings such as solar and wind power. Reduce dependance on foreign oils. Oil fluctuates in monetary value quickly, so altering to biofuels will assist buffer against the alteration. Ethanol is really cheap to bring forth. Can assist forestall engine knocking. The nascent U.S. biofuel industry has late begun a period of rapid growing. Over the past decennary biofuel production has been turning both in absolute footings and as a per centum of the gasolene and Diesel fuel pools. High universe oil monetary values, steadfast authorities support, turning environmental and energy security concerns, and the handiness of low-priced maize and soya bean feedstocks provide favorable market conditions for biofuels. Ethanol, in peculiar, has been buoyed by the demand to replace the octane and clean-burning belongingss of MTBE, which has been removed from gasolene because of concerns about groundwater taint. Disadvantages Biodiversity – A fright among conservationists is that by accommodating more land to bring forth harvests for biofuels, more home grounds will be lost for animate beings and wild workss. It is feared for illustration, that some Asiatic states will give their rain forests to construct more oil plantations4. Many first coevals biofuels are non sustainable. It is necessary to make sustainable biofuel production that does non impact nutrient production, and that does n’t do environmental jobs. Another concern is that if biofuels become moneymaking for husbandmans, they may turn harvests for biofuel production alternatively of nutrient production. Less nutrient production will increase monetary values and do a rise in rising prices. The impact is peculiarly high in developing states and it is estimated that around 100million people are at hazard due to the nutrient monetary value additions. By and large Life Cycle Analysis probes showed that the combustion of biofuels well reduces nursery gas emanations when compared to petroleum and diesel. However, in 2007 a survey was published by scientists from Britain, the USA, Germany and Austria which reported the combustion of rapeseed or maize can lend every bit much to azotic oxide emanations than chilling through fossil fuel savings1. In dumbly populated states such as the Netherlands, there is non adequate infinite to turn biofuels for the whole economic system, even if the full land surface would be used. This besides means that biofuels have to vie with alternate land utilizations such as nutrient production. The overall cost of doing biofuels is in fact a batch more so it would be to utilize natural beginnings such as air current turbines or things of that nature as a signifier of renewable energy. William claude dukenfields have to be tilled, and harvests have to be grown harvested and so fire in order to give off the needed energy. The production of non-sustainable biofuels has been criticised in studies by the UN, the IPCC and many other environmental and societal groups. As a consequence many authoritiess have switched their support towards sustainable biofuels, and options such as H and compressed air1. Other disadvantages Our technological procedures to bring forth biofuels are manner excessively dearly-won for us to be able to afford on a monolithic graduated table. We still need one million millions of dollars of research money into holding a fabrication procedure that will bring forth them at a cheaper rate. We still do n’t hold anyplace near the sum of biofuel converted autos to be able to take advantage of this fuel beginning. We will necessitate to put millions of dollars to alter the car substructure to let us to take advantage of this amazing natural fuel. Once we are able to construct big fabrication workss we will necessitate to happen a manner to cover with the really bad odor that is the result of the biofuel production rhythm and big towns will non desire to set up with this bad olfactory property produced. On one manus they massively cut down C emanations and can assist you salvage hard currency excessively ; but on the other manus they could negatively impact the home ground of many species and are n’t needfully energy efficient at the production phase. Political and environmental factors Initially authoritiess in North America have supported the development and commercialization of engineering to bring forth ethyl alcohol from grains, particularly maize, over several old ages. A advisers ‘ study to the Ontario ministry of energy found that, while the usage of ethyl alcohol from corn as a conveyance fuel could cut down C02 emanations and support husbandmans, authorities ‘s subsidies and regulative support would be needed in the initial phases of programme. Harmonizing to this survey ethyl alcohol installations combined with cowss feedlots could accomplish fiscal break-even if big graduated table workss are successfully developed. Biofuels were found to hold an of import part to do in the context of the European Union ‘s agricultural policy and trade dialogues. The production and usage of woody biomass is found to offer the greatest benefits, production of liquid fuels from cultivable harvests is besides treated favorably. Government are now stating experiences in the U.S. and Brazil now suggest that bing biofuels production installations are responsible for the coevals of a scope of new air and water-related jobs every bit good as recent concerns over human wellness. Biodiesel advantages Biodiesel is a fuel derived from vegetable oils or animate being fats that can be used either as a replacing for crude oil Diesel or blended with crude oil Diesel for usage in a standard Diesel engine. About 100,000 metric tons of used cookery oil and 230,000 metric tons of tallow are collected in the UK each twelvemonth and would otherwise be incinerated, put in landfill or exported. The usage of biodiesel can widen the life of Diesel engines because it is more lubricating than crude oil Diesel, while fuel ingestion, car ignition, power end product, and engine torsion are comparatively unaffected by biodiesel. Biodiesel is safe to manage and transport because it is every bit biodegradable as sugar, 10 times less toxic than table salt, and has a high flash point compared to petroleum Diesel With a much higher flash point than it is for petro-diesel, biodiesel is classified as a non-flammable liquid by the Occupational Safety and Health Administration. This belongings makes a vehicle fuelled by pure biodiesel far safer in an accident than one powered by crude oil Diesel. Biodiesel are biodegradable, non-toxic and renewable. The usage of biodiesel will besides cut down the undermentioned emanations: Carbon monoxide, ozone forming hydrocarbons, harzardous Diesel particulates of solid burning merchandises, acerb rain- causation sulfur dioxide, and lifecycle C dioxide Biodiesel has about the same MPG ( mile per gallon ) evaluation as petrodiesel Biodiesel readily blends and corsets blended with petrodiesel. Biodiesel disadvantages Transportation A ; storage of biodiesel require particular direction. Some belongingss of biodiesel make it unwanted for usage at high concentrations. For illustration, pure biodiesel does n’t flux good at low temperatures, which can do jobs for clients with out-of-door storage armored combat vehicles in colder climes. A related disadvantage is that biodiesel, because of its nature, ca n’t be transported in grapevines. It has to be transported by truck or rail, which increases the cost. Biodiesel is less suited for usage in low temperatures, than petrodiesel. At lower temperatures, the fuel becomes a gel that can non be pumped. The â€Å" pour point † is the temperature below which the fuel will non flux. As the cloud and pour points for biodiesel are higher than those for crude oil Diesel, the public presentation of biodiesel in cold conditions is markedly worse than that of crude oil Diesel. Another disadvantage of biodiesel is that it tends to cut down fuel economic system. How to cite Biofuels Will Give Greater Energy Efficiency Environmental Sciences Essay, Essay examples

Biofuels Will Give Greater Energy Efficiency Environmental Sciences Essay Free Essays

Biofuel refers to any solid, liquid or gas fuel that has been derived from biomass.1 Biofuels are renewable fuels derived from vegetable affair. It can be produced from any C beginning that is easy to stock up, such as workss. We will write a custom essay sample on Biofuels Will Give Greater Energy Efficiency Environmental Sciences Essay or any similar topic only for you Order Now Alternative fuel beginnings such as biofuels are attractive because they can be developed and they are more sustainable, cost-effectively and renewable energy. Biofuels will give greater energy efficiency and alterations in life styles. Biofuels have become chief concern issue in Brazil, the US, the European Union every bit good as many other states around the universe, due to concerns of oil dependance and involvement in cut downing CO2 emanations. All these parts have had important subsidies or authorizations for renewable energy production from agricultural beginnings. The most common schemes used to bring forth biofuel used for transit are: Grow workss – Plants that of course produce oils include oil thenar, Jatropha, soya bean and algae. When heated opposition ( viscousness ) is reduced they can be burned within a diesel engine or they can be processed to organize biodiesel1. Grow sugar harvests or starch – These include sugar cane, sugar Beta vulgaris, maize and corn which are so turned into ethyl alcohol through the procedure of barm agitation 1. Forests – By-products from forests can be converted into biofuels including methyl alcohol, ethyl alcohol and woodgas1. In Brazil, ethyl alcohol is produced chiefly from sugar cane get downing during the 1970s in order to cut down dependance on foreign oil2. However, the ethyl alcohol industry had a reverse in the 1990s due to inexpensive petroleum oil. When oil monetary values began to surge once more in the recent old ages, ethyl alcohol became a more attractive option to gasoline, aided by the launch of flex-fuel vehicles ( FFVs ) in 2003 3. Brazil has a comparative advantage in bring forthing ethyl alcohol, chiefly due to its handiness of land and its favorable clime for sugarcane cultivation. There are many different biofuels available in the UK. One of the most common worldwide is E10 fuel, which is really a mixture of 10 % ethyl alcohol and 90 % petroleum1. Advantages Biofuels cut down nursery gas emanations when compared to conventional conveyance fuels. Harmonizing to a technique called Life Cycle Analysis first coevals biofuels can salvage up to 60 % of C emanations compared to fossil fuels1. This was backed by a recent UK Government publication which stated biofuels can cut down emanations by 50-60 % . This is because the C dioxide they release when burnt is equal to the sum that the workss absorbed out of the ambiance. Therefore, they do n’t lend to planetary heating and besides emit less particulate pollution than other fuels, particularly Diesel. However, it does necessitate some fuel to power the machinery on the farms where biofuels are produced. With gasoline monetary values on the rise, replacing crude oil with a renewable energy beginning should besides offer important nest eggs at the pump in the long term ; peculiarly when biofuels are more readily available and Biofuels are besides cheaper than fossil fuels. Many authoritiess are now offering revenue enhancement inducements to purchase greener autos that run on biofuels. This one of the brinies grounds production of biofuels is increasing. Another advantage is that biofuels are assisting to undertake poorness around the universe. For illustration Brazil invested to a great extent in ethanol production during the energy crisis of 1970s and now has one of the universe ‘s most advanced production and distribution systems3. This has increased economic growing, increased employment chances and besides positive consequence on energy monetary values, as grounds to endorse biofuel production. This is nevertheless debated due to the force per unit areas it places on agricultural resources but biodiesel could be a long term solution as it uses simpler engineering and lower transit costs aboard increased labor. Other advantages are: Does n’t necessitate any extremist alterations to exchange to the usage of biofuels- unlike the troubles in exchanging to other renewable energy beginnings such as solar and wind power. Reduce dependance on foreign oils. Oil fluctuates in monetary value quickly, so altering to biofuels will assist buffer against the alteration. Ethanol is really cheap to bring forth. Can assist forestall engine knocking. The nascent U.S. biofuel industry has late begun a period of rapid growing. Over the past decennary biofuel production has been turning both in absolute footings and as a per centum of the gasolene and Diesel fuel pools. High universe oil monetary values, steadfast authorities support, turning environmental and energy security concerns, and the handiness of low-priced maize and soya bean feedstocks provide favorable market conditions for biofuels. Ethanol, in peculiar, has been buoyed by the demand to replace the octane and clean-burning belongingss of MTBE, which has been removed from gasolene because of concerns about groundwater taint. Disadvantages Biodiversity – A fright among conservationists is that by accommodating more land to bring forth harvests for biofuels, more home grounds will be lost for animate beings and wild workss. It is feared for illustration, that some Asiatic states will give their rain forests to construct more oil plantations4. Many first coevals biofuels are non sustainable. It is necessary to make sustainable biofuel production that does non impact nutrient production, and that does n’t do environmental jobs. Another concern is that if biofuels become moneymaking for husbandmans, they may turn harvests for biofuel production alternatively of nutrient production. Less nutrient production will increase monetary values and do a rise in rising prices. The impact is peculiarly high in developing states and it is estimated that around 100million people are at hazard due to the nutrient monetary value additions. By and large Life Cycle Analysis probes showed that the combustion of biofuels well reduces nursery gas emanations when compared to petroleum and diesel. However, in 2007 a survey was published by scientists from Britain, the USA, Germany and Austria which reported the combustion of rapeseed or maize can lend every bit much to azotic oxide emanations than chilling through fossil fuel savings1. In dumbly populated states such as the Netherlands, there is non adequate infinite to turn biofuels for the whole economic system, even if the full land surface would be used. This besides means that biofuels have to vie with alternate land utilizations such as nutrient production. The overall cost of doing biofuels is in fact a batch more so it would be to utilize natural beginnings such as air current turbines or things of that nature as a signifier of renewable energy. William claude dukenfields have to be tilled, and harvests have to be grown harvested and so fire in order to give off the needed energy. The production of non-sustainable biofuels has been criticised in studies by the UN, the IPCC and many other environmental and societal groups. As a consequence many authoritiess have switched their support towards sustainable biofuels, and options such as H and compressed air1. Other disadvantages Our technological procedures to bring forth biofuels are manner excessively dearly-won for us to be able to afford on a monolithic graduated table. We still need one million millions of dollars of research money into holding a fabrication procedure that will bring forth them at a cheaper rate. We still do n’t hold anyplace near the sum of biofuel converted autos to be able to take advantage of this fuel beginning. We will necessitate to put millions of dollars to alter the car substructure to let us to take advantage of this amazing natural fuel. Once we are able to construct big fabrication workss we will necessitate to happen a manner to cover with the really bad odor that is the result of the biofuel production rhythm and big towns will non desire to set up with this bad olfactory property produced. On one manus they massively cut down C emanations and can assist you salvage hard currency excessively ; but on the other manus they could negatively impact the home ground of many species and are n’t needfully energy efficient at the production phase. Political and environmental factors Initially authoritiess in North America have supported the development and commercialization of engineering to bring forth ethyl alcohol from grains, particularly maize, over several old ages. A advisers ‘ study to the Ontario ministry of energy found that, while the usage of ethyl alcohol from corn as a conveyance fuel could cut down C02 emanations and support husbandmans, authorities ‘s subsidies and regulative support would be needed in the initial phases of programme. Harmonizing to this survey ethyl alcohol installations combined with cowss feedlots could accomplish fiscal break-even if big graduated table workss are successfully developed. Biofuels were found to hold an of import part to do in the context of the European Union ‘s agricultural policy and trade dialogues. The production and usage of woody biomass is found to offer the greatest benefits, production of liquid fuels from cultivable harvests is besides treated favorably. Government are now stating experiences in the U.S. and Brazil now suggest that bing biofuels production installations are responsible for the coevals of a scope of new air and water-related jobs every bit good as recent concerns over human wellness. Biodiesel advantages Biodiesel is a fuel derived from vegetable oils or animate being fats that can be used either as a replacing for crude oil Diesel or blended with crude oil Diesel for usage in a standard Diesel engine. About 100,000 metric tons of used cookery oil and 230,000 metric tons of tallow are collected in the UK each twelvemonth and would otherwise be incinerated, put in landfill or exported. The usage of biodiesel can widen the life of Diesel engines because it is more lubricating than crude oil Diesel, while fuel ingestion, car ignition, power end product, and engine torsion are comparatively unaffected by biodiesel. Biodiesel is safe to manage and transport because it is every bit biodegradable as sugar, 10 times less toxic than table salt, and has a high flash point compared to petroleum Diesel With a much higher flash point than it is for petro-diesel, biodiesel is classified as a non-flammable liquid by the Occupational Safety and Health Administration. This belongings makes a vehicle fuelled by pure biodiesel far safer in an accident than one powered by crude oil Diesel. Biodiesel are biodegradable, non-toxic and renewable. The usage of biodiesel will besides cut down the undermentioned emanations: Carbon monoxide, ozone forming hydrocarbons, harzardous Diesel particulates of solid burning merchandises, acerb rain- causation sulfur dioxide, and lifecycle C dioxide Biodiesel has about the same MPG ( mile per gallon ) evaluation as petrodiesel Biodiesel readily blends and corsets blended with petrodiesel. Biodiesel disadvantages Transportation A ; storage of biodiesel require particular direction. Some belongingss of biodiesel make it unwanted for usage at high concentrations. For illustration, pure biodiesel does n’t flux good at low temperatures, which can do jobs for clients with out-of-door storage armored combat vehicles in colder climes. A related disadvantage is that biodiesel, because of its nature, ca n’t be transported in grapevines. It has to be transported by truck or rail, which increases the cost. Biodiesel is less suited for usage in low temperatures, than petrodiesel. At lower temperatures, the fuel becomes a gel that can non be pumped. The â€Å" pour point † is the temperature below which the fuel will non flux. As the cloud and pour points for biodiesel are higher than those for crude oil Diesel, the public presentation of biodiesel in cold conditions is markedly worse than that of crude oil Diesel. Another disadvantage of biodiesel is that it tends to cut down fuel economic system. How to cite Biofuels Will Give Greater Energy Efficiency Environmental Sciences Essay, Essay examples

Costing Methods Paper free essay sample

Costing Methods Paper Former Steelers’ running back Franco Harris created Super Bakery Inc. , in 1990. â€Å"Super Bakery is a virtual corporation, in which only the core, strategic functions of the business are performed inside the company. The remaining activities—selling, manufacturing, warehousing, and shipping—are outsourced to a network of external companies†. When management suspected that the established cost method was making a sizeable difference in its real cost structure, it wanted a new way of assigning their costs. Management also supposed an extensive difference in the cost of serving their customers in other parts of the country. However, its established methods were distributing costs over the entire customer foundation. Management reviewed and eventually altered their system to recognize the costs associated with the task performed in the company. Super Bakery’s management thought it was necessary to install an ABC system because all of their customer orders appeared to be equal in price to complete. We will write a custom essay sample on Costing Methods Paper or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page In actuality, high profit margin orders were financially supporting low profit margin orders. The company needed a system that would accurately assign the costs of each order. Installing the activity based system illustrated the cost and profit margins on each sale showed a discrepancy. â€Å"Super Bakery is now able to track the profitability of each customer’s account and the performance of outsourced activities. This doughnut maker, as a result, even knows the cost of the doughnut holes†! This decision was smart and could have been costly if the company did not recognize the need to change systems. Process order cost system would work for Super Bakery because process costing will put in the cost based on the average number of doughnuts and other baked goods produced per day. Processing cost allows the managers to get detailed information on the baked goods production statistics. Process costing also allows management the advantage of ascertaining the same qualities in all of their products, and compares their productivity over time. References Kimmel, P. D. , Weygandt, J. J. , Kieso, D. E. (2009). Accounting: Tools for business decision making  (3rd ed. ). Hoboken, NJ: John Wiley Sons

Staying Put free essay sample

This paper that analyzes a book Scott Russell Sanderss book Making a Home in a Restless World which explains the concept of home. The following paper examines how todays societies and cultures encourage us to move rather than to stay put, according to Sanders. The author discusses how in the introduction to this collection of brilliantly written essays, Sanders desires and locates his interest in fashioning a life that is firmly grounded in household and community, in awareness of nature, and in contact with that source from which all things arise. Every place needs both people who are committed to it as their home and people who move in and out. Scott Russell Sanders, author of Staying Put: Making a Home in a Restless World said in an interview that it is essential that there be many people who are deeply committed to their places. Sanders says that if every community, every region and every land had people who were committed to their land, then other people could move around. We will write a custom essay sample on Staying Put or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Sanders main thesis in the book is that home is not the place where you have to go but where you WANT to go. It is not a place where you are admitted but a place which is yours, where you are warmly welcomed, by the people, the flowers, the walls, the soil and the very grass.

Free Essays on Hackers, Good And Evil

â€Å"Governments form the industrial world; I come from cyberspace, the new home of mind. On behalf of the future, I ask you of the past to leave us alone. You are not welcome here. You have no sovereignty where we gather. You do not know us, nor do you know our world. Cyberspace does not lie within your borders, your legal concepts of property, expression, identity, movement and context do not obey to us. They are all base on matter and there is no matter here.† John Perry Barlow - Electronic Frontier Foundation Cyberspace Declaration of Independence Hackers, Good and Evil A war is being fought in the Internet twenty-four hours a day. A team of defenders spread throughout the world, are ready to stop and neutralize every attack. It is the Global Thread Operation Center where all attacks are being monitored; any of which could be the signal for a stronger hit that could generate absolute chaos. The room looks like a set from a futuristic movie. Four huge screens in the front of the room display the process data that is taking place. Several rows of desks and panels fill the room. More than twenty people are moving around, answering and making phone calls, talking to each other, and examining computer screens. They are ready, and waiting. Suddenly, everyone’s attention is focused on a specific screen, where a problem has been detected. One of the major highways of Internet traffic has slowed down considerably due to an assumed hacker assault. What is scary about this attack is that it seems to be moving through the time zones towards the Americas, most likely the United States. So far, it has in some way affected every major network attached to one of the pipelines. If the attack effectively reaches the U.S., it could negatively affect hundreds of companies, businesses, the stock market and millions of people; this would cause a devastating strike on the infrastructure of the Internet itself. The head leader of the team makes... Free Essays on Hackers, Good And Evil Free Essays on Hackers, Good And Evil â€Å"Governments form the industrial world; I come from cyberspace, the new home of mind. On behalf of the future, I ask you of the past to leave us alone. You are not welcome here. You have no sovereignty where we gather. You do not know us, nor do you know our world. Cyberspace does not lie within your borders, your legal concepts of property, expression, identity, movement and context do not obey to us. They are all base on matter and there is no matter here.† John Perry Barlow - Electronic Frontier Foundation Cyberspace Declaration of Independence Hackers, Good and Evil A war is being fought in the Internet twenty-four hours a day. A team of defenders spread throughout the world, are ready to stop and neutralize every attack. It is the Global Thread Operation Center where all attacks are being monitored; any of which could be the signal for a stronger hit that could generate absolute chaos. The room looks like a set from a futuristic movie. Four huge screens in the front of the room display the process data that is taking place. Several rows of desks and panels fill the room. More than twenty people are moving around, answering and making phone calls, talking to each other, and examining computer screens. They are ready, and waiting. Suddenly, everyone’s attention is focused on a specific screen, where a problem has been detected. One of the major highways of Internet traffic has slowed down considerably due to an assumed hacker assault. What is scary about this attack is that it seems to be moving through the time zones towards the Americas, most likely the United States. So far, it has in some way affected every major network attached to one of the pipelines. If the attack effectively reaches the U.S., it could negatively affect hundreds of companies, businesses, the stock market and millions of people; this would cause a devastating strike on the infrastructure of the Internet itself. The head leader of the team makes...

Self reflection Term Paper Example | Topics and Well Written Essays - 750 words

Self reflection - Term Paper Example In the course of the work of the group, there are things that went well and served as our strengths. There are also things that did not go so well and affected our decision-making pitfalls. The interactions with group members also brought about a lot of lessons that have been learned and skills that have been acquired. The reflection makes all these strengths, weaknesses, skills gained, and the approach for future practice known. A major strength of the group work was our approach to work. This is because as group we believed in the power of team spirit and so did everything in a consultative manner. As part of the consultative approach, everyone contributed with their ideas and these ideas were always brainstormed among the larger group to identify the most applicable and feasible ones for implementation. In effect, everything that came out as the final product was a representation of the group’s collective idea rather than the imposition of the views of a few people. This approach ensured that things went well and that things were very smooth and easy for us. Another thing was that there was equal division of the group’s work so that each person would become an active member of the group since passiveness limits the growth of teamwork (Freire 32). Even more, there was high level of efficiency as group members ensured that we avoided long meetings but rather use the little times we had product ively. As much as there were strengths, there were some weaknesses that the group faced. As indicated earlier, decision making was done at the group level through brainstorming activities, where everyone’s contributed counted. There were however some decision-making pitfalls and traps that we faced. For example the boldness to implement group decisions was always a challenge. As a result of this, it was common that we would out away our decision making to later dates in

Surface analysis Assignment Example | Topics and Well Written Essays - 1750 words

Surface analysis - Assignment Example These ions on collision dislodge atoms from the surface creating secondary ions. Using a combination of electrostatic and magnetic fields which distinguishes the ions on the mass to charge ratio, these secondary ions are drawn into a mass spectrometer. By varying the strength of the magnetic field one can assess ions of different mass to charge ratios. (Surface Analysis, 2000) Some of the applications of SIMS include (i) Identifying the isotopes in a material that might have same atomic masses as it is capable of producing mass resolutions to tune of 7000. (ii) It is capable of finding out the extent of impurity concentration present in a specimen and represents the same as a function of depth. The sensitivity of this instrument is in the range of 1 ppb (-10^13 at/cm^3) (iii) It can accurately map the interface layers and the impurities that may be located at these grain boundaries. (iv) It uses the raster scanning technique to produce three dimensional images of the grain distributi on. (v) Using the secondary ions it can directly produce an image showing the arrangement of trace elements. Source: Surface Analysis, 2000 2. ... Some of the applications of AES include (i) This is used to identify compositions of elements in solid materials with high output sensitivities in the range of 0.5 atomic percent for lithium to uranium. (ii) This is useful in carrying out the volumetric analysis of a specimen. (iii) This is capable of producing magnified images to the tune of 20000x and is used extensively in microelectronics. 3. X-Ray Photoelectron Spectroscopy (XPS) (Surface Analysis, 2000) This advanced technique uses x rays in dislodging electrons from specimens and these have distinct kinetic energies depending on the nature of emitted electrons. It is particularly useful in providing information regarding the type of bonds that exist between electrons. This is because any change in binding energy is reflected in the XPS spectrum chart which shows crests and troughs. The crests obviously reflect the high chemical boding energy that existed and the troughs vice versa. Its applications include (i) Determining mole cular composition of surfaces along with information regarding the atomic bonding. (ii) It can identify very accurately to the tune of 0.5 atomic % the presence of lithium and uranium. (iii) This can create depth profiles for materials in the range of 1Â µm thickness. (iv) This method of analysis is particularly useful to study functional groups in polymers. 4. Scanning Probe Microscopy (SPM) This is also referred to as Atomic Force Microscopy (AFM). This is capable of generating a profile that shows the topographical nature of the specimen surface. Schematic of atomic force microscope operation Source: Surface Analysis, 2000 This essentially consists of a tip mounted on a cantilever. The specimen is placed below this cantilever and