Thursday, October 10, 2019
Nanotechnology Use in Fire Protection â⬠Need for Environmental Friendliness Essay
There is a serious need to develop a more effective fire protection technology as the morbidities and the mortalities from the current seem to be rather insufficient. However, the nanotechnology fire protection industry is still in the infancy stage, developing solutions that are out of reach of the common man today. Nanotechnology is not only found to increase the durability, strength and efficiency of the material, but also increase it fire resistance along with self-cleansing action. A great number of fire-retarders have nanotechnology incorporated. A checklist needs to be prepared that would be required by the end user to ensure adequate protection of human life and the environment. Nanotechnology can also help in the detection and prevention of fires. The technology seems to be promising with various applications. However, only if the stakeholders become more interested would this technology become cheaper and permit more extensive use. Introduction Due to the serious impact of fire on the mortality, morbidity (burns, etc) and the losses to property, there is an urgent need for fire protection considering the overcrowding in cities and the serious impact of fires on the environment. In the year 2003, about 70 billion Euros were lost over fire damages, and hence, people are trying to build fire resistant buildings with both active and passive features (Innovations Report, 2004). Nanotechnology currently has a very small market segment as more and more fire-resistant materials and electronics are being used to tackle fire problems. In the Beijing Olympics concluded in the year 2008, fire protection was adequately provided in various sports construction sites by the use of Nanotechnology. There are more than 48 different applications in fire protection with nanotechnology. Some of the common applications required in fire protection include smoke detectors, alarm systems, resistant building material, etc, and nanotechnology has held strong promises in curbing some of the problems of the future (Innovations Report, 2004). In the year 2004, the nanotechnology market in the fire segment was 30 billion dollars, and is expected to almost double within a decade of introduction. As molecules can appropriately be modified to make them more fire-resistant, companies around the world are increasingly creating these modifications. Each year the nanotechnology market grows by about 25%. Nanotechnology is also said to be environmentally-friendly. China is said to be the current leader in the use of nanotechnology in fire protection (Innovations Report, 2004). The EPA is also supporting research in the use of nanotechnology for fire protection and safety. In February 2007, the EPA published a White paper on Nanotechnology and considered the same to help in preventing pollution to the environment. The White paper also focused on responsible use of nanotechnology by using recycling of the same and also ensures that the same was not toxic to the populations (EPA, 2007). Using nanotechnology has several advantages in reducing pollution & ill-effects on the environment:- 1. Reducing any waste substances that are released into the environment, 2. Using substances that are not so toxic, 3. Using conservative methods that could effectively reduce pollution and also recycling and reusing material, thus effectively preventing wastes 4. Increase in the general surface area of the article 5. Improvement in the strength of the material without considerable increase in the weight 6. Materials that use less raw materials and lesser electricity during manufacture 7. Changes to the electrical conductivity, color and opaqucity of the materials 8. Products that are used become less self-cleansing can be used 9. there would be a reduced need to have chemicals that would retard flames and fires 10. Components that are used in construction of automobiles can become more resistant to wear and tear, erosion and fatigue 11. Nanoscale catalysts can effectively help to reduce pollution 12. using the nanoscale catalysts, raw materials would be utilized more efficiently and reduced amounts of wastes would be generated (EPA, 2007) Advantages of Nanotechnology with reference to fire protection Body Nanotechnology involves the use small particles of materials or manipulating them in such a way that their properties would be enhanced, with potential application on a larger scale especially for construction purposes. Nanotechnology involves creating these modifications at ten to the power of -9 of a meter or the nanometer level. It is a new science with more recent applications and can be considered to be an extension of work that has been occurring on a microscopic level (micrometer). Processes and products with concrete, steel, glass, and composites are using nanotechnology. The concrete that would be used can be manipulated easily and is more durable, stronger and environmentally-friendly. Steel and glass can become tougher. Once, these materials are stronger, durable, and tougher, and their manipulation is improved, the impact on the environment would also be positive as the materials are more efficient. Not only is the process of manufacture improved by using nanotechnology, but also during actual fabrication or manipulation at the construction site (Mann, 2006). Most of the nanotechnology applications have been held back due to the limitations in costs. Nanotechnology is quite expensive for the modern world to incorporate due to the infancy of technology. With costs of using the same very high and rather very limited applications, many people prefer ignoring nanotechnology, resulting in isolation. Researchers feel that within the next five years, there could be significant use of nanotechnology in the field of constructions and others, such that application of the same would not be so exorbitant. Nanotechnology at the moment requires strong funding for research and motivation. The government needs to take an active role in the same with interest in improving the current environmental degradation. Besides, researchers and the industry need to collaborate more strongly. There should be a strong thirst for innovation such that nanotechnology should be applied with greater force (Mann, 2006). With the introduction of any kind of new technology, importance should be given to the life-cycle of the products, toxicity of the product and exposure that could be occurring to both humans and others in the environment. With relation to the life-cycle several factors need to be taken into consideration including design, level of production, application of the product, disposal, disintegration in the environment, etc. At the users end, a checklist need to be utilized that would ensure that enough of prevention is taking place in protecting the environment and human life. Some of the queries that can form a part of this checklist include:- ? Steps need to be taken to reduce the unintended consequences of the life-cycle of the product ? Real-time application of the products that can prevent pollution ? Barriers that are present for adopting nanotechnology in the modern world ? Methods of overcoming these barriers ? Areas of nanotechnology in which further research needs to be performed ? Manner in which the beneficial properties of nanotechnology can be used to create innovative products that can reduce pollution ? Role the regulatory bodies, courts and the government can perform (EPA, 2007) Today, the walls of homes and offices have huge amounts of lead in the paints and often this can be toxic during use or disposal. Nanotechnology and nanoengineering can help improve the composition of these materials such that they are less toxic to human health and the environment. Today, the impact of floods and erosion beaches are very critical considering the ill-effects of global warming. By changing the way natural materials function at the nanoscale, their environmental-friendliness can be improved (EPA, 2007). Not only would nanotechnology help in reducing the carbon dioxide levels by changing how the material works at the nanoscale, but also help the way in which a building is using energy (EPA, 2007). The same modification to cement can effectively help in fire protection as spray-on coats. The present cements that are being used are very brittle and need polymers to make them more adhesive. With modifications at the nanoscale to cement, they are stronger, more durable and can tolerate high temperatures when present in coats. Effectively carbon nanotubes (CNTââ¬â¢s) are mixed with cement material to mimic something similar to composites with high strength. Another option instead of using CNTââ¬â¢s is polypropylene which is a cheaper option and can improve fire protection (Mann, 2006). Using nanotechnology, better solar cells can be manufactured that are more efficient and cheaper. Besides, nanotechnology can help in heat recovery and also in treatment of water and air at the building. However, these technologies are not current and scientists are suggesting that they can be used, although we have already woken up to the dawn of the future (EPA, 2007). The self-assembly of buildings can be improved using nanotechnology. Molecules can be designed into complementary shapes such that they produce only minimum energy, which effectively helps in fire prevetion (Mann, 2006). Nanotechnology also plays an important role in fire hazard management and prevention. Today having a nanocomposite as one of the materials present in the flame retardant has been considered an advantage. Cross linked systems that provide polyureas and polyurethane foams seem effective in controlling fires. Another new tool that has been developed to combat flames is confocal microscopy (used in chemical analysis and material testing by collecting the light that is in focus and excluding light out of focus) (Leica, 2010). Previously, all the flame retardant systems had certain toxic components that could harm human life and have a negative effect on the environment. However, flexible and rigid polyurethane structures have been used in a number of applications such as furniture, mattresses, carpets, cars, aircrafts, etc. By altering them at the nanoscale, their resistance to fire can be improved. Previously, the open cell structures of the foams prevented stability during fire fighting. Even additives that increase the foam stability would have a negative effect on the environment. These additives include halogens and phosphorus based compounds that have a negative effect over human health. As most of these substances are volatile, during fire fighting, the high temperature would cause evaporation of these materials causing more damage to the environment (EPA, 2007). Nanotechnology can also be used to develop nano-electromechanical systems and circuitry that would connect detectors at various places in the buildings. The nano-devices would be effectively embedded into surfaces and would be able to detect fire easily (Mann, 2006). Another application of nanotechnology for fire protection is in nanoclays that can help to lower the rate at which plastics burn as it can increase the char forming abilities and prevents plastics from melting and dripping. When used along with other flame retardants, there is more effective fire retardation (EPA, 2007). With regards to fire protection specifically certain queries need to be answered in the checklist:- ? Extracting of raw materials during processing should not be damaging to the environment ? Emission of nanomaterial to the environment ? Reaction or additives to polymers ? Nanomaterials properties during use ? Exposure of nanomaterials to the industrial workers during manufacture ? Reaction of nanomaterials to light, heat, dust, etc ? Ability to recycle the nanomaterials ? Protection of workers during manufacture ? Nanomaterials during combustion and burning ? Ability to transport the nanomaterial ? Effects of exposing the user to nanomaterial A company by name GreenShield FR has developed a nanomaterial treatment for several groups of materials including polyester so that the material can become fire resistant as well as provide protection from water and staining. There are three sets of coat which are applied of the nanomaterial onto the surface. The first layer helps the nanomaterial to adhere to the parent material. The second layer offers repellency and self-cleansing action, and the third layer offers fire-resistance. At the end, the entire material is non-flammable. When these materials degrade they do not release any kind of toxic material into the environment. Nanoclays on the other hand help to lower the amount of energy that is liberated during fire. The nanoclays prevent the materials from bursting and disintegrating and further adding to the fire that has been activated. Nanoclays ensures that the materials burn slowly and at a lower temperature and can work along with several fire retardants (Betts, 2008). Conclusion Nanotechnology is offering strong promises to the field of fire protection, although very little is being utilized today due to the exorbitant costs of nanomaterials. However, these materials are not only more effective and safer, but also more environmentally-friendly. Within the next five years, with greater innovations and understanding of nanotechnology it would be easier to use this technology. Using nanotechnology, materials not only become fire-resistant but also stronger, durable and better self-cleansing. Using nanotechnology, fire cannot only be prevented and retarded, but also monitored and detected using nano-electromechanical detectors. The future for nanotechnology looks good, but researchers and academic organizations should continue with their search to make this technology more affordable and effective. References Betts K. S. (2008). ââ¬Å"New Thinking on Flame Retardants. â⬠Environ Health Perspect. 2008 May; 116(5): A210ââ¬âA213. http://www. ncbi. nlm. nih. gov/pmc/articles/PMC2367656/ EMBL (2010). Leica Manual, Retrieved on July 10, 2010, from Web site: http://www. embl. de/ExternalInfo/almf/htdocs/almf_website/pdf/TCS_SP2_09052000. pdf EPA (2007). Pollution Prevention through Nanotechnology Conference, Retrieved on July 10, 2010, from Web site: http://www. epa. gov/oppt/nano/p2docs/final_nano-conf-brochure. pdf Innovations Report (2004). Nanotechnology in Fire Protection can save Life and secure Health, Retrieved on July 10, 2010, from Web site: http://www. innovations-report. com/html/reports/studies/report-29292. html Mann, S. (2006). Nanotechnology and Construction, Retrieved on July 10, 2010, from Web site: http://nanotech. law. asu. edu/Documents/2009/10/Nanotech%20and%20Construction%20Nanoforum%20report_259_9089. pdf Occupational Health & Safety (2010). Microtechnology vs. Nanotechnology, Retrieved on July 10, 2010, from Web site: http://ohsonline. com/articles/2010/01/01/microtechnology-vs-nanotechnology. aspx PHYSORG (2010). Chemist monitors nanotechnologyââ¬â¢s environmental impact, Retrieved on July 10, 2010, from Web site: http://www. physorg. com/news188736302. html
Wednesday, October 9, 2019
Pollution Control Measures Essay Example | Topics and Well Written Essays - 1000 words
Pollution Control Measures - Essay Example Consequently, this paper explores the merits of the three pollution control measures to establish the optimal pollution control measure that should be adopted by the countries. Discussion Benefits and marginal costs are compared to establish the amount of pollution that should be accepted in society. This is called the optimal pollution level, where the marginal social costs and marginal social benefits are equal. Similarly, the marginal cost of pollution damage and the marginal cost of pollution control are compared to establish when pollution control measures should be employed. Under this concept, pollution should be reduced if the benefits gained are higher than the control costs (Hoel, 1998). This is as demonstrated in the graphical representation below on the marginal cost of pollution damage versus the marginal cost of pollution control. Qmax in the graph above shows the maximum level of pollution that is expected when pollution control measures are not employed. Thus, the pol lution amount will drop from Qmax when the control policies are introduced in the market. On the other hand, MCD is the marginal cost of damage that is caused by pollution emissions. Similarly, MCC is the marginal cost of control that has the tendency of rising as the levels of pollution fall (Hoel, 1998). The optimal control level is represented by the Q* in the graph, where the MCD and MCC are equal. This is the level at which the pollution control cannot be exceeded since the benefits will be less than the marginal cost of undertaking the pollution control measure. This practice of balancing the marginal cost and benefit is known as the equimarginal principle (Hoel, 1998). Legal regulation is one of the pollution control measures employed by government agencies, which involves setting the emission standards for specific products or industries under the legislative guideline. The major advantage of legal regulation is that it specifies results compared to other control measures (W eyzig, 2009). Thus, it is possible to ensure that producers do not allow a risky level of pollutants. However, this control measure has the potential of experiencing inflexibility when the economic players are required to meet the same standard. This can only work where activities polluting the environment are same. Consequently, pollution tax is effective in an industry that has numerous and different plants. This will involve charging the plants by per unit of emission they make in their production activities. Taxation will be effective in controlling the level of emission since the plants operating in the market will consider reducing the pollution level provided the marginal cost is lower compared to the tax (Tucker, 2011). Under the taxation control measure, the Qmax of pollution before the pollution control measures are introduced will shift to Q1, as reflected in the graph below, when a pollution tax of T1 is introduced. This is because the manufacturers in the market will pr efer to lower their pollution level by undergoing a cost E shown in the graph, instead of paying a tax that is equal to F + E for these units as reflected in the graph above (Tucker, 2011). In addition, the manufacturers will be forced to pay a charge equivalent to B + D for the pollution level of Q1 they cause. This cost is lower than B+ D ââ¬â E+ F that they will be required to pay if they do not reduce their pollution l
Tuesday, October 8, 2019
Chicano Essay Example | Topics and Well Written Essays - 250 words - 1
Chicano - Essay Example There are various types of son depending upon the rural folk music it categorizes, and every type has its own unique instrumentation. 2. Also known as espinela and introduced by Vicente Gà ³mez Martà nez-Espinel (1550ââ¬â 1624), a decima is a style in poetry in which the poem has ten-line stanzas. A decima conveys thoughtful, spiritual, ethical, or political message to the reader. Decimas may be philosophical or comical. Satirical decimas highlight peopleââ¬â¢s flaws. Puerto Rico decimas are octosyllabic, where each stanza has 10 lines, with the rhyming scheme of ABBAACCDDC. Decimas are often improvised, and the improviser is known as decimero. Decimeros improvise decimas in folklore poetic competitions known as payadas. They confront the primary message in the decimas. For example, they respond to the satirical decima with a kind decima, and come up with a duet song that becomes an extempore creative improvising of a satirical
Monday, October 7, 2019
Libertarianism Essay Example | Topics and Well Written Essays - 500 words
Libertarianism - Essay Example If the state interferes the people would have to face problems at the hands of the state. Injustice and inequality would prevail in the society if the state intervenes. Individualism and self owner ship are some other concepts of libertarianism. Both these concepts relate to the ownership of private resources and independence of the people. They put forward that the state should not intervene in the matters of private ownership as it would disrupt the peace and integrity of the society. Minarchism is another form which puts forward that the states should only come into play when there are protection issues. Equality is also one form which is promoted by this concept so that the people do not share natural resources unequally. This equality can only be promoted if a stateless society exists where the state does not intervene much into the matters of public. There can be many advantages for libertarianism if seen from a rational perspective. As the state will not intervene in the matters of the private properties people can live easily and without problems. Cooperation is at the core of the philosophy and it can help people in all ways to get over the problems that they may face. As individual liberty is promoted in this political philosophy it is possible that the people would live in peace and harmony without any interference from the state. Injustice would not be done at the hands of the state this philosophy prevails. Moreover equality can also be promoted through this political philosophy. On the other hands the political philosophy has other problems which many people cite when referring to it. Individual liberty can be beneficial to the state till one point but after that it can harm the integrity and peace of the whole society. Individual ownership and less interference from the states can create a gap between different groups. The states necessarily have to show
Sunday, October 6, 2019
Think Small First Essay Example | Topics and Well Written Essays - 2500 words
Think Small First - Essay Example à This research tells that the entire process of running a corporation appeared as if the entire company administration was not running a business but doing clerical jobs with official departments managing company affairs. Smaller companies were not regarding worth consideration whenever any change or amendment was required in company legislation, whereas the fact is that bigger companies emerge only from smaller setups. It was a sort of degradation of corporate system of business administration. The present company legislation has changed the entire scenario and brought in simplified procedures and practices to encourage small entities to incorporate businesses following the revolutionary provisions promulgated under the Companies Act 2006. The provisions of the Companies Act, 2006 will be fully effective from October 2009. The motto is to think small first in order to grow bigger. With this background, the different provisions of the Companies Act 2006 are examined hereunder to find out the realities. One of the objectives of the Companies Act 2006 is to ââ¬Ëthink small first.ââ¬â¢ This ââ¬Ëkey theme behind the Act is to reflect realities of companies in operation today. Much of the current system is predicated on the basis of large companies, whereas the vast majority of the companies are an owner- managed with five or fewer persons involved. Therefore, one of the stated aims of reform is to simplify the creation and operations of private companies, based around a ââ¬Ëthink small firstââ¬â¢ approach.ââ¬â¢ In this way reform of regulation of smaller and private companies has taken the center stage with the changes brought in by the Companies Act, 2006. The main changes brought in by the Companies Act,2006 for small companies related to the formation of the company, carrying out routine business like resolutions and meetings, accounts and auditing, and financial assistance and capital maintenance. The formation of the company has become a simp le procedure now as compared to earlier legislation.
Friday, October 4, 2019
TRADOC Essay Example | Topics and Well Written Essays - 750 words
TRADOC - Essay Example Indeed, it must be realized that in order to realize its mission, there must be a proper integration of the activities of TRADOC. Considering that the mission of the Command revolves around training, it is imperative to note that this training is geared towards creating effective formations that can help address the overall mission objectives of the US Army (TRADOC 2012) . TRADOC also has an objective of ensuring the Army is guided through doctrine. This is a very important objective especially in the disciplined forces. It is often realized that many people in the Army fail to understand much of the doctrine that guide their operations. In this respects, challenges often abound. In line with TRADOCââ¬â¢s missions of designing a capable and versatile US Army, this objective is definitely a proper way of ensuring the compliance with the law. TRADOC also seeks to develop very adaptive leaders both drawn from soldiers and civilians. Indeed, as a training unit, TRADOC seeks to transfo rm not only the army but civilians as well. It therefore extends its training in order to create a population that understands and appreciates the important role of the Army. Through proper leadership, it is expected that the mission of TRADOC will be achieved across the board as people will share much of the information obtained from the Command. As a training Command, the core objective of TRADOC is therefore to recruit and train solders and to provide various ways that support unit training. In this respect, TRADOC oversees Army school across the country which train over 500,000 soldiers and service members yearly. The training is always made to reflect the changing times and this call for much innovation and agility. In this case, the trainees are always suited to serve in both times of peace and war. All these objectives outlined above certainly have various measures to ensure they are effectively achieved. With respect to building and integrating the various formations, one me asurement aspect can be a united and cohesive Army and proper coexistence between the Army and the civilians. It is often realized that a lack of integration of the various units presents many challenges in administration. Such a measurement would therefore be effective in gauging the effectiveness of the training in this respect. As regards civilian training, one measurement metric can involve conducting a survey on the civilians to determine whether they understand the imperatives of Army training and the need to appreciate the role of the Army in the society. Lastly, with respect to overall training, measurement is achieved by the quality of the various Army commands and whether they realize their particular objectives. For instance their performance in war or in peacetime activities such as natural calamities can effectively provide an insight on their effectiveness DePuy, W. E., (Swain, Gilmore & Conway, 2000). Considering that the focus of TRADOC is essentially training, the e xpected level of performance or target is the lack of any challenges in operations with respect to the various formations. On civilian training, the target is the achievement is a cohesive coexistence between the solders and the civilians. In terms of general training, the target is professionalism and excellence in terms of performance at all times (King & Demsey, 2008). In order to ensure a successful
Thursday, October 3, 2019
Work, Culture, and Society In Industrializing America 1815- 1919 Essay Example for Free
Work, Culture, and Society In Industrializing America 1815- 1919 Essay It is historian Herbert G. Gutmans thesis that the conflicts between the working class and the non working class resulted in a departure from its values and principles. The working class did not want this departure to happen; it was only the inevitable result of the growing industrialization. The conflicts between the rest of society and the working class resulted in the disappearance of its principles. During the beginning of the 19th century, the United States had remained a pre-industrial society and there were few workers and factories because at the time, it was dominated by a farming, skilled workers, and agricultural culture. However, after 1843, the industry developed radically through the civil war and was followed by a new nature industrial society that appeared in 1893. During this development, both skilled women and men were forced to modernize. Just as Sidney Pollard had described, a society of peasants, craftsmen, and versatile labourers became a society of modern industrial workers. This process was difficult because it required a task of industrializing whole cultures. Nevertheless, the process was achieved as the nation gathered and worked to transform themselves and new groups from the pre-industry to the new. This progression was continually altered by immigration, social conflicts, and through various other elements. These women and men sold their labor to an employer to join this new changing factory working condition. Work habits in comparison remained the same from the native culture and to the immigrants. Also, the working pattern also parallels one of that of the European patterns in pre-modern development. There were also tensions between culture, work, and society. Work habits of men and women in the new factory and labor life attributed to the diverse pre-modern cultures. During the early 19th century, many Americans were newly introduced to a more efficient process of production called the factory. At this period of time, most work was done by man, not machines. Conversely, as time developed, more and more factories, beginning with textiles and cotton industry used unskilled labor to work in mass producing products. Drinking was common in this time even while working, it caused unproductive labor and often be inclined to have more accidents and deaths. Reform movements began and to solve this there was a temperance movement although it was short lived it served its process. Also, managers began to fine and deduct from wages if there was unproductiveness, for instance, drinking liquor. And at places where unskilled factory workers could easily be replaced, they took this as an advantage and often fired those who did become drunk. The effect was better working habits to society. These work habits were not just common to pre modern America but also later generations of factory workers. And by 1920, two thirds of workers in the twenty-one major mining and manufacturing industries came from either Southern or Eastern Europe or were American blacks. Many of these cultures and factory workers had numerous of the pre-industrial work habits. Assorted patterns of working class behavior accompanied the industrialization of the United States. Forms of protest occurred throughout the periods and development of industrialization in America. This followed the ever changing behavior and diversity of the cultures that were in the working class. Another form of culture was included in street gangs that were believed to hold artisan and lower class workers and were organized by ethnicity. Others, people often had food riots against the monopolies and the rising food prices. Similar behaviors in riots even decades apart for instance, the 1837 food riot wasnt much different from one from 1902. For instance, women became organized and were led by a woman butcher and these people protested the rising price of kosher meat and a disloyalty among the members in not boycotting it. Like the previous disorders and riots, these women battered shops and carried the meat like flags although they did not steal at all. The development of the industrial age was a process where many progressed and left their previous values behind, although there was some resistance to this new modernization.
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