Economics and Government Assignment Example | Topics and Well Written Essays - 750 words

Economics and Government - Assignment Example The market only stabilizes where demand is equal to supply and an equilibrium price is determined. Many sellers meet and each produces what he/she is best at hence quality goods are sold by willing sellers to willing buyers at an agreed price (Harford, 61-65). Q2: What does Harford mean when he says that in competitive markets, "Things are going to the right people†? In a competitive market, there is free allocation of resources although the consumers are the ones who determine how resources are to be allocated through their purchasing power. All the players in the market have a self interest; the producers maximize profits, the owners of factors of production get rewards, while the consumers get maximum utility. The consumers demand goods thus forcing producers to produce the goods and the producers in turn allocate factors of production in the production process. All the players in the market thus get what they deserve; profits, rewards, and utility. The buyers get what they can afford based on their income and wealth (Harford, 61-79). Q3: When Harford talks about the absence of a market for schools, he argues that people find a way to trade in access to schools---they use the property market. Does this mean that, in fact, there is a market for schools, and that we should expect provision of schooling to be efficient? Provision of education is not profitable to businessmen hence there is no market for schools. However, where property market is thriving there is establishment of schools as businessmen cater for their needs or arising out of economies of scale. The workers who work in those properties require education hence more schools are established for easier access. There is market for schools but they are underprovided hence government intervention is needed to ensure all citizens have access to schools especially in poor areas where no industries exist. Q4: What is an externality? Give an example of an externality, and show how its presence makes the price of an activity diverge from the cost of the activity. An externality is an unintended consequence that results from production and consumption in the market thus affecting others not directly involved in the process. For example, the consumption of demerit goods such as cigarettes gives the individual satisfaction but affects the health of others who inhale the smoke. This is an additional cost to the society which is not included while determining prices in the market hence the price of the activity is lower than the actual cost of the activity (Harford, 79-108). Q5: What is a positive externality? Give an example of one, and show how in "complete, free and competitive markets" (to use Harford's phrase), too little of this good would be produced and traded. A positive externality occurs when consumption or production of a good is beneficial to other members of the society who are not involved in the transaction such that the social cost is less than private cost. For exam ple, research and development is beneficial to all. This means the producer engaging in research and development incurs high costs and in a free market, other producers will benefit from information or ideas generated from this research to improve their products. It therefore discourages producers from investing in research since the private cost is higher than social cost. More of the product will thus be needed than is available in the market. Q6:

The topic can be revised by the writer Essay Example | Topics and Well Written Essays - 500 words

The topic can be revised by the writer - Essay Example Using the four-quadrant model, I was able to categorize my major activities as: urgent and important (quadrant one), not urgent and important (quadrant two), urgent and not important (quadrant three), and not urgent and not important (quadrant four). I tracked down eight activities through the week that consumed at least one and a half hours every session. Using the four quadrant model, the activities can be classified as; The classification was enabled by calculating the amount of time that each grid consumed. Quadrants 1,2,3,4 consumed two hours, three hours, one and a half hours, and two hours respectively. The grid revealed to me that I spent more time on online chatting than I thought. I was surprised by the amount of time I devoted to activities that were of self-interest. The music practice was urgent and important for a forthcoming schools’ music festival. I noticed that I attached little value to the practice as compared to the other members, regardless of its short timeframe. An activity is important if it comprises of long-term strategies and personal development. Important activities are those that contribute to health and wellness. Music practice, studying, and exercising were the most important activities for the past week. I am passionate about those activities since they stimulate personal development. Music, studying, and exercising form my hobbies list in my rà ©sumà ©. They are activities that propel my long-term goals of personal development; and success. There are two factors that dictate whether an activity is urgent. Firstly, the activity has to have a deadline. Secondly, there must be an authority that requires the activity completed within its timeframe. Music practice and reading and writing journals were activities supervised and coordinated by the director of music and health chairman respectively. The activities were time pressured and required adequate concentration to get the work

Application of Thermal Insulation

Application of Thermal Insulation 1.2 Problem Statement Energy saving in buildings has become a question of crucial importance in many countries. At the same time, the requirements for satisfactory indoor climate with low electricity consumption have increased which prompt the supply and demand for energy efficient homes. The battle against global warming shall start from home insulation to reduce green house gas emission. In developed countries, government has even allowed tax credit to house owners for costs incurred in carrying out home insulation works which meets the urgent need in the fight against global warming. In Malaysia, the common answer from the public in general to make a house or office cool is probably by switching on the air conditioning. The roof of most houses is constructed using timber roof trusses and concrete roof tiles in Malaysia. The heat gained through the roof which convents through the ceiling has increased the indoor heat to a level that most house owners will not feel comfortable without the use of air cond itioners. The impact that roofs have on energy is often overlooked, the impact of which can be significant. In homes, air conditioners make up 23% of energy consumption. Alternatively we can achieve the dream cool and comfort living or working environment despite in a very hot sunny day with the help of install the thermal insulation then will reduce the dependence on air conditioners to cool the home or office. This means insulating a home could potentially save thousands of ringgit in electricity bills. Install the thermal insulation in the wall or roof will increasing the cost of the building but the price tag on insulation is considered small when compared with the benefits including monthly savings in electricity bills throughout the lifespan of the house, reduced greenhouse gas emissions, improved comfort and living standards and a huge contribution to the local economic growth, as the insulation material is manufactured locally. 1.3 Aim The researchers aim for conducting this research is to review the uses and identify the importance of thermal insulation. Besides that, to find out whether application of thermal insulation to the buildings is suitable to be adopted into construction industry in Malaysia. 1.4 Objectives To review the concepts and uses of thermal insulation. To assess the importance or advantages of thermal insulation in Malaysia. To investigate the applicability of thermal insulation amongst the buildings in Malaysia. 1.5 Hypothesis Application of thermal insulation into the buildings would increase the energy saving in buildings and decrease in emission to environmental. 1.6 Background Governments all over the world are beginning to realize the importance of reducing dependence on energy imports as fuel reserves becomes scarcer and supplies are concentrated on a few politically unstable countries. The building sector is probably the most effective and easiest way to start reducing energy consumption. Reduction in energy demand can be most effective due to applying thermal insulation to the buildings. Thermal insulation is the method of preventing heat from escaping a container or from entering the container. In other words, thermal insulation can keep an enclosed area such as a building warm, or it can keep the inside of a container cold. Depending on the climate, we spend more or less energy on heating or cooling, but we will spend more energy on cooling the room by switch on the air conditioning in Malaysia. There have a main reason for using thermal insulation for reduction of heat coming in, without too much loss of light due to the hot climate in Malaysia. So, the demand of energy can be significantly reduced by install a thermal insulation into the wall or roof of those buildings. Thermal insulation has been introduced to reduce the demand of energy result in electric consumption costs up to 40% and the countrys energy resources. This allows savings on the cost of the air-conditioning, because a smaller unit is needed, and on the running cost of the air conditioning. It also indeed creates a more comfortable living and working atmosphere. Besides that, most of the people will switch on the air conditioning to keep the comfort in the room or working place in Malaysia. But, the air conditioners will release a haloalkanes which are a group of chemical compounds, consisting of chlorine, fluorine and carbon, called Chlorofluorocarbons (CFC). The CFC will among the greenhouse gases in the atmosphere that contribute to future global warming. So, apply thermal insulation to the buildings will reduce using the air conditioning naturally will reduce the emission to the environmental also. 1.7 Scope of Study The research project has provided the idea and functions of thermal insulation to the buildings make a preliminary of understanding to it. Besides that, the advantages or importances that apply the thermal insulation to the buildings in Malaysia also fall within the scopes of this research project. In this study, I have studied into few buildings in Malaysia which have installed the thermal insulation such as Pusat Tenaga Malaysia Zero Energy Office (ZEO) building at Bandar Baru Bangi and Low Energy Office (LEO) Ministry of Energy, Water and Communications Malaysia at Putrajaya. Based on these buildings, I will study the benefits that obtain from the buildings which have applied thermal insulation to the wall and roof in this research project. In addition, I will inquire into the applicability of thermal insulation in the buildings in Malaysia. 1.8 Research Methodology For the primary source, questionnaires were prepared as a ground for the main survey which relates to the reason of construction firms attempt to apply thermal insulation to the buildings in Malaysia. The questionnaires were then distributed to the construction firms which are be responsible for ‘Pusat Tenaga Malaysia Zero Energy Office (ZEO) building project and ‘Low Energy Office (LEO) Ministry of Energy, Water and Communications Malaysia through e-mail. For this purpose of survey, mailing list was obtained for website which has listing the name, address and the title of principal officer for each firm listed. That company was chosen and sent a set of questionnaire while those company which have not related into the projects will be randomly chosen for obtain the opinion on the applicability of apply thermal insulation in the buildings in Malaysia. For secondary sources, a comprehensive review of the relevant literature including a computer assisted search, textbook, journals, articles and so on, will be taken to develop an understanding of concept and uses of thermal insulation. Besides that, the importance or advantages of thermal insulation in Malaysia also will be assessed by computer assisted search. 1.9 Proposed structure of the dissertation Chapter 1: Introduction. Chapter 2: Literature Review 2.1 Review concept and uses of thermal insulation. 2.2 Review importance to apply thermal insulation into a building. 2.3 Investigation of applicability of thermal insulation into the buildings in Malaysia. Chapter 3: Research design and methodology. Chapter 4: Analysis of the result and discussion. Chapter 5: Conclusion. References. 1.10 – References Chin Teck, Soh. September 30, 2009. Lack Of Insulation In Malaysian Buildings Key Cause Of High Energy Bills. Viewed on: December 23, 2009. Available on: www.HYPERLINK http://www.highbeam.com/doc/1G1-208867648.htmlhighHYPERLINK http://www.highbeam.com/doc/1G1-208867648.htmlbeam.com/doc/1G1-208867648.html Chin Teck, Soh. September 30, 2009. Save Energy Fight Global Warming. Viewed on: December 23, 2009. Available on: www.mimg.org.my/images/pdf/MIMG_Booklet_revised.pdf Allergy.J, February 19, 1999. ChlorofluorocarbonHYPERLINK http://linkinghub.elsevier.com/retrieve/pii/S0091674999700448 HYPERLINK http://linkinghub.elsevier.com/retrieve/pii/S0091674999700448To Hhydrofluoroalkane formulations. Viewed on: December 24, 2009. Available on: linkinghub.elsevier.com/retrieve/pii/S0091674999700448 Chin Teck, Soh. September 30, 2009. Why Insulate?. Viewed on: December 25, 2009. Available on: www.mimg.org.my/images/pdf/MIMG_Why_Insulate.pdf 2.0 Literature Review 2.1 Review the concepts and uses of thermal insulation 2.1.1 – Concept of thermal insulation Thermal insulation has been defined as a material or combination of materials which slow down the flow of heat, reduce some sound transmission or slow down the spread of fire when buildings are in fire.(Anish, 2003) The thermal insulation materials can be suited to any size, shape or surface and the variety of finishes to be used in order to protect the thermal insulation from mechanical and environmental damage as well as to enhance appearance of buildings.(Anish, 2003) Thermal insulation can be mentioned either to materials used to lower the rate of heat transfer, or the means and processes used to lower heat transfer. Thermal insulation will transfer heat energy and the hHYPERLINK http://en.wikipedia.org/wiki/Heateat energy would be transferred by three methods, which are convection, conduction and radiation. 2.1.1.1 Convection When the heat is flow whether by forced or natural, within a fluid and the fluid is a substance that may be either a gas or a liquid, this process is called convection.(Zhang, et al. 2005) Convection will then gravitationally-induced heat transport, driven by the expansion of a fluid on heating then hot expanded fluid has lower density, so will rise to the top of colder, and therefore denser, fluid.(Fowler, 2008) For example, when air to be heated, then it will expands and rise. However, if the air movement is established mechanically by a floor register, fan, or wind, then it will be called as a forced convection. 2.1.1.2 Conduction Conduction is direct heat flow or conducted from a material especially a solid.(Zhang, et al. 2005) When different parts of an isolated solid are at different temperatures, the heat will flow from the hot places to the cold places until eventually all is at the same temperature.(Fowler, 2008) Conduction and convection have same uses which are functions of the roughness of surfaces, air movement and the temperature difference between the air and surface. The increasing of heat energy can flow through materials and from one material to another.(Kurtus, 2006) 2.1.1.3 Radiation Radiation is the transmission of energy through space by means of electromagnetic waves.(Zhang, et al. 2005) This is clearly in the way the sun warms the surface of the earth, which involves the heat transfer through electromagnetic waves and absorption of the heat energy by a surface. Heat from the sun is reaches human skin as radiation, much of it can clearly be seen or evident light, the rest similar electromagnetic waves but at wavelengths human eyes are not sensitive to it. All bodies not at sheer zero temperature radiate, at room temperature the radiation is in the infrared, wavelengths longer than those of the visible spectrum. (Fowler, 2008) Source: isover Then, the types of thermal insulation are indicates the composition and internal structure of a building and the types of thermal insulation are normally been subdivided into three groups, which are fibrous insulation, cellular insulation and granular insulation.(Muhammad Anis-ur-Rehman, et al. 1999) 2.1.1.4 Fibrous Insulation Fibrous insulation is composing of air finely divided into interstices by small diameter fibers. The fibers may be parallel or perpendicular to the surface being insulated and they may separate or bonded together. That is usually chemically or mechanically bonded and formed into boards, blanket or hollow cylinders. (Muhammad Anis-ur-Rehman, et al. 1999) 2.1.1.5 Cellular Insulation Cellular insulation is composed of air or some other gas contained within foam of stable small bubbles and formed into boards, blankets, or hollow cylinders. The cellular material may be glass or foamed plastic such as polystyrene, polyurethane and elastomeric. (Muhammad Anis-ur-Rehman, et al. 1999) 2.1.1.6 Granular Insulation Granular insulation is composed of air or some other gas in the interstices between small granules and formed into blocks, boards, or hollow cylinders. This type may be produce as loose pourable material or combined with a binder and fibers to make a rigid insulation. (Muhammad Anis-ur-Rehman, et al. 1999) Furthermore, thermal insulation is available in a variety of forms and it is usually rated in terms of thermal resistance which is R-value, which indicates the resistance of material to heat flow. The higher its resistance is, the greater the insulating effectiveness is. Of course, the thermal insulation property depends on the type of material, its thickness, and its density. The combined form and type of insulation will determine the proper method of insulation. There are many forms of thermal insulation are designed to deliver a sustained level of thermal resistance, such as Traditional Batt Insulation or Alternatives, Blown-In Cellulose Insulation, Rigid Board Insulation, Spray Foam Insulation and SIPs/ICFs. 2.1.1.7 Traditional Batt Insulation or Alternatives Batt or Blanket Insulation is the most common and least effective insulation used in the states nowadays. It has an approximate rating of R-3 per inch. Technically the R rating is even lower because typical batts are so loose that they allow air to penetrate them and cool them down. It is possible to use batts effectively in energy efficient buildings but the installation is labor intensive. One slightly greener alternative to batts would be to use batts or rolls made of natural fibers such as Bonded Logics insulation made from recycled denim jeans.[8] These types of insulation typically have a slightly higher R rating and do not harm the indoor air quality since they are made of natural materials. The trade off is that they are pricey and still do not effectively seal air gaps without extra labor and supervision. (Ludeman, 2008) 2.1.1.8 Blown-In Cellulose Insulation Loose-Fill Insulation is an option that can be economic friendly because the Cellulose is a type of blown-in or loose-fill insulation that is made from recycled newspapers. There pros and cons but the bottom line is that it will not provide much better R- value than batt insulation and typically it will cost more to have installed. The best applications seem to be for attics that are not well insulated because cellulose can be quickly and efficiently blow over an attic floor to dramatically and safely increase the insulation between the home and the hot attic space. (Ludeman, 2008) 2.1.1.9 Rigid Board Insulation Rigid Board Insulation can contain some of the highest R-values with some Polyurethane sheets reaching R-8 per inch. Since the insulation comes in the form of rigid boards it is popular as roof and wall coverings attached to the exterior of the framing of a new building. Attaching to the exterior of the framing will improve the strength of the structure while also creating an insulated break or thermal barrier between the wood studs and the exterior sheathing or siding. This can greatly reduce the heat loss transferred from the inside of the building though the wood studs and to the exterior. There are also green versions of rigid board that are normally classified as polystyrene rigid insulation. This type may contain some recycled materials and will not off-gas like some of the other sheet products might. Besides that, rigid board insulation is also can find boards that are laminated or strengthened to act as both the buildings sheathing and insulation. Since sheathing of some type is necessary, this does not eliminate a step but can greatly improve the building envelope without additional labor. (Ludeman, 2008) 2.1.1.10 Spray Foam Insulation Spray-Foam Insulation is probably the most effective type of insulation for traditional, stick-framed buildings available nowadays. The product is in the form of a liquid that is sprayed on and quickly expands to 100 times its size. It can achieve R-values of R-9 per inch but most importantly, it automatically creates an almost perfect air seal upon expanding. While the product is costly, it is effective and reduces a lot of manual caulking and sealing that would be necessary with other types of insulations. The most popular forms are petroleum based but there are also green options such as BioBased Insulation that is composed of 96% bio-content (soy-beans). (Ludeman, 2008) 2.1.1.11 Structurally Insulated Panels (SIPs) / ICFs Structurally Insulated Panels are arguably the best way to achieve a tightly sealed and well insulated building. They are basically two sheets of OSB with spray foam insulation sandwiched between them. They are both structural as well as insulating so they eliminate the need for traditional framing and can streamline the construction of a building is assembled properly. All seams are sealed and there is no thermal bridge from studs. The only downfall is many contractors are unfamiliar with them and they can be quite pricey. Many of the green builders are using Structurally Insulated Panels because there are vehemently opposed to stick building as they view it an obsolete building practice. (Ludeman, 2008) Therefore, apply the thermal insulation for buildings will prevents or reduces heat from escaping a building or from entering a building. Thermal insulation can keep an enclosed area such as a building or a room warm for the cold climate countries like United Kingdom, Poland, New Zealand and so on; or it can keep the inside of a building or a room cold for the tropical climate countries such as Malaysia, Indonesia, Thailand, and so on. So, the thermal insulators are applied and functions to minimize that heat energy transfer from the buildings. In thermal insulation, the R-value is an indication of how well for a material insulates for the buildings. 2.1.1.12 R-value The R-value is the total thermal resistance (RT) for any building elements, including the surface thermal resistances of the air on either side of the building elements. The conductivity of bulk insulation materials will change with the temperature of the material. (Williamson, 2007) It is significant to realize that the boundary conditions and other factors used in the calculation of the R-values, which will cause the R-value different. The total thermal resistance of a flat for building element consisting of layers perpendicular to the heat flow is calculated using the expression: RT = Rsi + R1 + R2 + . . . . . + Rn + Rse Rsi is the internal surface resistance; R1, R2, .Rn are the thermal resistances of each layer, including bridged layers; Rse is the external surface resistance [Source: Dr Terry Williamson (2007)] An air space for the thermal resistance within a building element is depends on the valid emissivity of the space as well as the mean temperature and the difference in temperatures either side of the space.(Williamson, 2007) It follows therefore that the calculation of the R-value of a building element containing air spaces depends on the conditions assumed externally and internally.(Williamson, 2007) Thus, the flow of heat can be reduced by applying thermal insulation materials to the buildings and The rate of heat transfer is dependent on the physical properties of the material employed to do this. Insulation for the home has R-values usually in the range of R-10 up to R-30. The following is a listing of different materials with the English measurement of R-value: Material R-value Hardwood siding (1 in. thick) 0.91 Wood shingles (lapped) 0.87 Brick (4 in. thick) 4.00 Concrete block (filled cores) 1.93 Fiberglass batting (3.5 in. thick) 10.90 Fiberglass batting (6 in. thick) 18.80 Fiberglass board (1 in. thick) 4.35 Cellulose fiber (1 in. thick) 3.70 Flat glass (0.125 in thick) 0.89 Insulating glass (0.25 in space) 1.54 Air space (3.5 in. thick) 1.01 Free stagnant air layer 0.17 Drywall (0.5 in. thick) 0.45 Sheathing (0.5 in. thick) 1.32 [Source:  Hyperphysics Georgia State University] Another mathematical expression used in thermal quantification, and the most common reference used by the insulation industry, is U-value, or flow rate of heat through a building elements. 2.1.1.13 U-value U-value is to be used for describe the amount of heat loss or also called as thermal transmittance, that occurs through an element of construction such as a wall or window. (Raynham, 1975) If an element of construction has a lower the U-value the less energy is lost and the better is its insulating characteristics.(Zimmermann Bertschinger, 2001) It has the same unit as thermal conductivity, except that since a U-value refers to a given construction, the thickness of which is taken into account, it has the unit W m-2 K-1. U-value is computed according to the formula: U=(Ri s+ Re s,+Rc a v+k1-l+k2-1+†¦)-l Ri s and, Re s are the thermal resistances of internal and external surfaces respectively; Rc a v is the sum of thermal resistances of any cavities; k1-l+k2-1+†¦ are the thermal resistances of each material used. [Source: Mark Zimmerman Hans Bertschinger (2001)] Since the U-value is a measurement of heat flow, the lower the U-value, the more slowly does the material transfer heat in and out of the home. The U-value typically is used in expressing overall thermal conductance, since it is a measurement of the rate of heat flow through the complete heat barrier, from room air to outside air.(Anderson, 2006) The lower the U-value, the better is the insulating value. The U-value of a constructional element of buildings would decreases rapidly as the first few centimeters of thermal insulation are added.(Rouni, 2005) An even more increase in thermal insulation thickness does not always lead to an equally fast decrease in the U-value. The thicker the thermal insulation layer already is, the less the decrease in the U-value is by more adding thermal insulation.(Rouni, 2005) The following diagram shows the decrease in the U-value as the thickness of the insulation layer increases. [Source: GK Rouni (2005)] Temperature and temperature variations govern much of our daily lives, the environmental factors such as temperature, radiation, air motion, and humidity, as well as on personal factors such as activity levels, clothing selection and expectation, all of those factors are contribute to the state of thermal comfort.(Bynum, 2000) Thermal comfort is a term given the varying nature of the human condition, has been described as a feeling of well-being, an absence of discomfort, or a state of mind that is satisfied with the thermal environment. (McDowall, 2007) 2.1.2 – Uses of thermal insulation The human beings have demonstrated that we are need for the protection from the elements of construction and although many of these factors are continuously in flux, but the proper use of thermal insulation, placement of vapor barriers, and understanding of heat transfer will contribute to providing an environment conducive to thermal comfort within the buildings to the human.(Bynum, 2000) Thermal insulation is the better way to protect anything against the heat because the material use for this is really heat absorbing material. Thermal insulation is to be used to perform many of the functions and the primary purpose of thermal insulation is to reduce heat loss or heat gain through the exterior assemblies of a building in order to achieve energy conservation.(Stettler, 2009) Basically thermal insulations reduce the rate of heat transfer because there are special type of thermal insulation material which converts the heat energy to some other form by conduction, convention and radiation as mentioned as foresaid. [Source: exergia] As the drawing shows that the houses lose heat through walls, windows, doors, floors, roofs and ventilation.  Thermal insulation, quality double-glazed windows and controlled ventilation can reduce the heat losses by as much as 50%, thus reducing the heating costs in the cold climate.(Weber, 2006) However, an energy efficient home featuring thermal insulation, shading, brightly colored external surfaces and controlled ventilation also greatly enhance the thermal comfort by offering protection from the heat and radiation of the sun. (Weber, 2006)  This also helps to drastically reduce the electrical bills that pay to run air conditioners in tropical climate. Besides that, apply thermal insulation for buildings will protect the environment through the reduction of Chlorofluorocarbon (CFC), Carbon Dioxide (CO2), Nitrogen Oxide (NOx) and greenhouse gases. (Stettler, 2009) The greenhouse effect to a great level decides the climate on earth. Growth in emissions of greenhouse gases related with human activities menaces the climate balance. Chlorofluorocarbon (CFC) and Carbon Dioxide (CO2) are the main greenhouse gas which are emitted due to air-conditioners are function to provide cool or hot air and increasing thermal comfort of buildings, there have led to rapid growth in the amount of Chlorofluorocarbon (CFC) and Carbon Dioxide (CO2) in the a atmosphere. Heating, air conditioning and refrigeration are the causes that result in this growth. If no action is taken at all, the EU Member States said that greenhouse gas emissions could be expected to further increase by 17% between 1990 and 2010, while the target set by the Kyoto Protocol for the period is to reduce the emissions by 8%. The reasonable level of expenditure on insulation is directly related to the amount of the heat loss or heat gain, and to the electricity of air-conditioning required to produce an appreciable return in terms of electricity saving. Fortunately, it is possible to reduce energy consumption and the associated Chlorofluorocarbon (CFC) and Carbon Dioxide (CO2) emissions in heating and air conditioning by one third by using more or better insulation for the buildings.(Roberts, et al. 1981) Furthermore, the thermal insulation also can be used in buildings in order to prevent or reduce condensation on surfaces.(Raynham 1973) If wants to prevent condensation on the surface of walls, it is necessary to have adequate ventilation and sufficient insulation and heat input. It is also necessary to consider the question of whether condensation is likely to occur within a structure. Since most structures experience a falling dew point especially where insulating internal linings are provided, as well as temperature gradient from inside to out, it is possible for the temperature on the cold side of the insulation to fall below the dew point, causing interstitial condensation.(Raynham 1973) This can be controlled by providing water vapour barriers on the warm side of the insulation. This may take the form of polythene film or certain types of paint treatment, such as chlorinated rubber on the insulated lining. In some situations such as factory roofs and some timber flat roofs, ventilation is provided above the insulation to remove any water vapour that has penetrated that far.(Raynham 1973) Thermal insulation also can use to prevent or reduce damage to buildings when occur fire in the buildings or near the buildings.(Raynham 1973) When fire breaks out in a compartment the contents of the whole room are heated up, leading to accumulation of flammable gas. Eventually a point is reached when these gases, together with the materials evolving them, suddenly kindle and thus involve the whole room in fire. Tests done many years ago at the Fire Research Station (Raynham 1973) investigated the factors leading to a short, and therefore dangerous, flashover time. Tests involving fires in domestic sized rooms with insulating board and hardboard wall linings showed that flashover occurred at between 8.5 and 12min. Two further tests made with a noncombustible sprayed insulating lining gave flashover times of 8 and 4.5 min, thus suggesting that the thermal insulating characteristics of a lining are probably more significant from a fire development point of view than its combustibility. If this is true to any extent, significantly improved standards of thermal insulation, such as we are about to adopt in this country, are almost certain to accentuate the fire risk, especially in dwellings. The thermal insulation also can be installed in the mechanical system in commercial buildings and industrial processes.(Avtivity, 2008) In buildings such as shopping centers, schools, hospitals, and hotels, mechanical insulations are installed to improve the energy consumption of the cooling and heating systems for buildings, domestic hot and cold water supply, and refrigerated systems including ducts and housings. However, for industrial facilities such as power plants, refineries, and paper mills, mechanical thermal insulations are installed to control heat gain or heat loss on process piping and equipment, steam and condensate distribution systems, boilers, smoke stacks, bag houses and precipitators, and storage tanks.(Avtivity, 2008) Thermal insulation for mechanical system is to dominate the temperatures of the surface for personnel and equipment protection. That is one of the most effective mediums of protecting workers from second and third degree burns resulting from skin contact for more than 5 seconds with surfaces of hot piping and equipment operating at temperatures above 136.4 °F.(Avtivity, 2008) Thermal insulation will function to reduces the surface temperature of piping or equipment into a safer level as required by OSHA, resulting in increased worker safety and the avoidance of worker downtime due to injury.(Avtivity, 2008) Besides, thermal insulation also will control the temperature of commercial and industrial processes when installed in the mechanical system.(Avtivity, 2008) Thermal insulation can help maintain process temperature to a pre-determined value or within a predetermined range by reducing heat loss or gain. The insulation thickness must be sufficient to limit the heat transfer in a dynamic system or limit the temperature change, with time, in a static system.(Avtivity, 2008) The need to provide time for owners to take remedial action in emergency situations in the event of loss of electrical power, or heat sources is a major reason for this action in a static system. At last but not least, installed the thermal insulation in the mechanical system will reduce noise from mechanical systems.(Avtivity, 2008) Insulation materials can be used in the design of an assembly having a high sound attenuation or sound resistance. The sound transmission loss when the thermal insulation to be installed between the source and the surrounding area.(Avtivity, 2008) So, thermal insulation not only can be used for building but also for the mechanical system in commercial buildings and industrial processes in order to achieve different effects. 2.2 – The importance or advantages of thermal insulation in Malaysia 2.2.1 – Advantages of thermal insulation in Malaysia Governments all over the world are beginning to recognize the significance of reducing dependence on energy imports as fuel reserves becomes scarcer and supplies are focused on a few politically unstable countries. In the Malaysian context, the ener Application of Thermal Insulation Application of Thermal Insulation 1.2 Problem Statement Energy saving in buildings has become a question of crucial importance in many countries. At the same time, the requirements for satisfactory indoor climate with low electricity consumption have increased which prompt the supply and demand for energy efficient homes. The battle against global warming shall start from home insulation to reduce green house gas emission. In developed countries, government has even allowed tax credit to house owners for costs incurred in carrying out home insulation works which meets the urgent need in the fight against global warming. In Malaysia, the common answer from the public in general to make a house or office cool is probably by switching on the air conditioning. The roof of most houses is constructed using timber roof trusses and concrete roof tiles in Malaysia. The heat gained through the roof which convents through the ceiling has increased the indoor heat to a level that most house owners will not feel comfortable without the use of air cond itioners. The impact that roofs have on energy is often overlooked, the impact of which can be significant. In homes, air conditioners make up 23% of energy consumption. Alternatively we can achieve the dream cool and comfort living or working environment despite in a very hot sunny day with the help of install the thermal insulation then will reduce the dependence on air conditioners to cool the home or office. This means insulating a home could potentially save thousands of ringgit in electricity bills. Install the thermal insulation in the wall or roof will increasing the cost of the building but the price tag on insulation is considered small when compared with the benefits including monthly savings in electricity bills throughout the lifespan of the house, reduced greenhouse gas emissions, improved comfort and living standards and a huge contribution to the local economic growth, as the insulation material is manufactured locally. 1.3 Aim The researchers aim for conducting this research is to review the uses and identify the importance of thermal insulation. Besides that, to find out whether application of thermal insulation to the buildings is suitable to be adopted into construction industry in Malaysia. 1.4 Objectives To review the concepts and uses of thermal insulation. To assess the importance or advantages of thermal insulation in Malaysia. To investigate the applicability of thermal insulation amongst the buildings in Malaysia. 1.5 Hypothesis Application of thermal insulation into the buildings would increase the energy saving in buildings and decrease in emission to environmental. 1.6 Background Governments all over the world are beginning to realize the importance of reducing dependence on energy imports as fuel reserves becomes scarcer and supplies are concentrated on a few politically unstable countries. The building sector is probably the most effective and easiest way to start reducing energy consumption. Reduction in energy demand can be most effective due to applying thermal insulation to the buildings. Thermal insulation is the method of preventing heat from escaping a container or from entering the container. In other words, thermal insulation can keep an enclosed area such as a building warm, or it can keep the inside of a container cold. Depending on the climate, we spend more or less energy on heating or cooling, but we will spend more energy on cooling the room by switch on the air conditioning in Malaysia. There have a main reason for using thermal insulation for reduction of heat coming in, without too much loss of light due to the hot climate in Malaysia. So, the demand of energy can be significantly reduced by install a thermal insulation into the wall or roof of those buildings. Thermal insulation has been introduced to reduce the demand of energy result in electric consumption costs up to 40% and the countrys energy resources. This allows savings on the cost of the air-conditioning, because a smaller unit is needed, and on the running cost of the air conditioning. It also indeed creates a more comfortable living and working atmosphere. Besides that, most of the people will switch on the air conditioning to keep the comfort in the room or working place in Malaysia. But, the air conditioners will release a haloalkanes which are a group of chemical compounds, consisting of chlorine, fluorine and carbon, called Chlorofluorocarbons (CFC). The CFC will among the greenhouse gases in the atmosphere that contribute to future global warming. So, apply thermal insulation to the buildings will reduce using the air conditioning naturally will reduce the emission to the environmental also. 1.7 Scope of Study The research project has provided the idea and functions of thermal insulation to the buildings make a preliminary of understanding to it. Besides that, the advantages or importances that apply the thermal insulation to the buildings in Malaysia also fall within the scopes of this research project. In this study, I have studied into few buildings in Malaysia which have installed the thermal insulation such as Pusat Tenaga Malaysia Zero Energy Office (ZEO) building at Bandar Baru Bangi and Low Energy Office (LEO) Ministry of Energy, Water and Communications Malaysia at Putrajaya. Based on these buildings, I will study the benefits that obtain from the buildings which have applied thermal insulation to the wall and roof in this research project. In addition, I will inquire into the applicability of thermal insulation in the buildings in Malaysia. 1.8 Research Methodology For the primary source, questionnaires were prepared as a ground for the main survey which relates to the reason of construction firms attempt to apply thermal insulation to the buildings in Malaysia. The questionnaires were then distributed to the construction firms which are be responsible for ‘Pusat Tenaga Malaysia Zero Energy Office (ZEO) building project and ‘Low Energy Office (LEO) Ministry of Energy, Water and Communications Malaysia through e-mail. For this purpose of survey, mailing list was obtained for website which has listing the name, address and the title of principal officer for each firm listed. That company was chosen and sent a set of questionnaire while those company which have not related into the projects will be randomly chosen for obtain the opinion on the applicability of apply thermal insulation in the buildings in Malaysia. For secondary sources, a comprehensive review of the relevant literature including a computer assisted search, textbook, journals, articles and so on, will be taken to develop an understanding of concept and uses of thermal insulation. Besides that, the importance or advantages of thermal insulation in Malaysia also will be assessed by computer assisted search. 1.9 Proposed structure of the dissertation Chapter 1: Introduction. Chapter 2: Literature Review 2.1 Review concept and uses of thermal insulation. 2.2 Review importance to apply thermal insulation into a building. 2.3 Investigation of applicability of thermal insulation into the buildings in Malaysia. Chapter 3: Research design and methodology. Chapter 4: Analysis of the result and discussion. Chapter 5: Conclusion. References. 1.10 – References Chin Teck, Soh. September 30, 2009. Lack Of Insulation In Malaysian Buildings Key Cause Of High Energy Bills. Viewed on: December 23, 2009. Available on: www.HYPERLINK http://www.highbeam.com/doc/1G1-208867648.htmlhighHYPERLINK http://www.highbeam.com/doc/1G1-208867648.htmlbeam.com/doc/1G1-208867648.html Chin Teck, Soh. September 30, 2009. Save Energy Fight Global Warming. Viewed on: December 23, 2009. Available on: www.mimg.org.my/images/pdf/MIMG_Booklet_revised.pdf Allergy.J, February 19, 1999. ChlorofluorocarbonHYPERLINK http://linkinghub.elsevier.com/retrieve/pii/S0091674999700448 HYPERLINK http://linkinghub.elsevier.com/retrieve/pii/S0091674999700448To Hhydrofluoroalkane formulations. Viewed on: December 24, 2009. Available on: linkinghub.elsevier.com/retrieve/pii/S0091674999700448 Chin Teck, Soh. September 30, 2009. Why Insulate?. Viewed on: December 25, 2009. Available on: www.mimg.org.my/images/pdf/MIMG_Why_Insulate.pdf 2.0 Literature Review 2.1 Review the concepts and uses of thermal insulation 2.1.1 – Concept of thermal insulation Thermal insulation has been defined as a material or combination of materials which slow down the flow of heat, reduce some sound transmission or slow down the spread of fire when buildings are in fire.(Anish, 2003) The thermal insulation materials can be suited to any size, shape or surface and the variety of finishes to be used in order to protect the thermal insulation from mechanical and environmental damage as well as to enhance appearance of buildings.(Anish, 2003) Thermal insulation can be mentioned either to materials used to lower the rate of heat transfer, or the means and processes used to lower heat transfer. Thermal insulation will transfer heat energy and the hHYPERLINK http://en.wikipedia.org/wiki/Heateat energy would be transferred by three methods, which are convection, conduction and radiation. 2.1.1.1 Convection When the heat is flow whether by forced or natural, within a fluid and the fluid is a substance that may be either a gas or a liquid, this process is called convection.(Zhang, et al. 2005) Convection will then gravitationally-induced heat transport, driven by the expansion of a fluid on heating then hot expanded fluid has lower density, so will rise to the top of colder, and therefore denser, fluid.(Fowler, 2008) For example, when air to be heated, then it will expands and rise. However, if the air movement is established mechanically by a floor register, fan, or wind, then it will be called as a forced convection. 2.1.1.2 Conduction Conduction is direct heat flow or conducted from a material especially a solid.(Zhang, et al. 2005) When different parts of an isolated solid are at different temperatures, the heat will flow from the hot places to the cold places until eventually all is at the same temperature.(Fowler, 2008) Conduction and convection have same uses which are functions of the roughness of surfaces, air movement and the temperature difference between the air and surface. The increasing of heat energy can flow through materials and from one material to another.(Kurtus, 2006) 2.1.1.3 Radiation Radiation is the transmission of energy through space by means of electromagnetic waves.(Zhang, et al. 2005) This is clearly in the way the sun warms the surface of the earth, which involves the heat transfer through electromagnetic waves and absorption of the heat energy by a surface. Heat from the sun is reaches human skin as radiation, much of it can clearly be seen or evident light, the rest similar electromagnetic waves but at wavelengths human eyes are not sensitive to it. All bodies not at sheer zero temperature radiate, at room temperature the radiation is in the infrared, wavelengths longer than those of the visible spectrum. (Fowler, 2008) Source: isover Then, the types of thermal insulation are indicates the composition and internal structure of a building and the types of thermal insulation are normally been subdivided into three groups, which are fibrous insulation, cellular insulation and granular insulation.(Muhammad Anis-ur-Rehman, et al. 1999) 2.1.1.4 Fibrous Insulation Fibrous insulation is composing of air finely divided into interstices by small diameter fibers. The fibers may be parallel or perpendicular to the surface being insulated and they may separate or bonded together. That is usually chemically or mechanically bonded and formed into boards, blanket or hollow cylinders. (Muhammad Anis-ur-Rehman, et al. 1999) 2.1.1.5 Cellular Insulation Cellular insulation is composed of air or some other gas contained within foam of stable small bubbles and formed into boards, blankets, or hollow cylinders. The cellular material may be glass or foamed plastic such as polystyrene, polyurethane and elastomeric. (Muhammad Anis-ur-Rehman, et al. 1999) 2.1.1.6 Granular Insulation Granular insulation is composed of air or some other gas in the interstices between small granules and formed into blocks, boards, or hollow cylinders. This type may be produce as loose pourable material or combined with a binder and fibers to make a rigid insulation. (Muhammad Anis-ur-Rehman, et al. 1999) Furthermore, thermal insulation is available in a variety of forms and it is usually rated in terms of thermal resistance which is R-value, which indicates the resistance of material to heat flow. The higher its resistance is, the greater the insulating effectiveness is. Of course, the thermal insulation property depends on the type of material, its thickness, and its density. The combined form and type of insulation will determine the proper method of insulation. There are many forms of thermal insulation are designed to deliver a sustained level of thermal resistance, such as Traditional Batt Insulation or Alternatives, Blown-In Cellulose Insulation, Rigid Board Insulation, Spray Foam Insulation and SIPs/ICFs. 2.1.1.7 Traditional Batt Insulation or Alternatives Batt or Blanket Insulation is the most common and least effective insulation used in the states nowadays. It has an approximate rating of R-3 per inch. Technically the R rating is even lower because typical batts are so loose that they allow air to penetrate them and cool them down. It is possible to use batts effectively in energy efficient buildings but the installation is labor intensive. One slightly greener alternative to batts would be to use batts or rolls made of natural fibers such as Bonded Logics insulation made from recycled denim jeans.[8] These types of insulation typically have a slightly higher R rating and do not harm the indoor air quality since they are made of natural materials. The trade off is that they are pricey and still do not effectively seal air gaps without extra labor and supervision. (Ludeman, 2008) 2.1.1.8 Blown-In Cellulose Insulation Loose-Fill Insulation is an option that can be economic friendly because the Cellulose is a type of blown-in or loose-fill insulation that is made from recycled newspapers. There pros and cons but the bottom line is that it will not provide much better R- value than batt insulation and typically it will cost more to have installed. The best applications seem to be for attics that are not well insulated because cellulose can be quickly and efficiently blow over an attic floor to dramatically and safely increase the insulation between the home and the hot attic space. (Ludeman, 2008) 2.1.1.9 Rigid Board Insulation Rigid Board Insulation can contain some of the highest R-values with some Polyurethane sheets reaching R-8 per inch. Since the insulation comes in the form of rigid boards it is popular as roof and wall coverings attached to the exterior of the framing of a new building. Attaching to the exterior of the framing will improve the strength of the structure while also creating an insulated break or thermal barrier between the wood studs and the exterior sheathing or siding. This can greatly reduce the heat loss transferred from the inside of the building though the wood studs and to the exterior. There are also green versions of rigid board that are normally classified as polystyrene rigid insulation. This type may contain some recycled materials and will not off-gas like some of the other sheet products might. Besides that, rigid board insulation is also can find boards that are laminated or strengthened to act as both the buildings sheathing and insulation. Since sheathing of some type is necessary, this does not eliminate a step but can greatly improve the building envelope without additional labor. (Ludeman, 2008) 2.1.1.10 Spray Foam Insulation Spray-Foam Insulation is probably the most effective type of insulation for traditional, stick-framed buildings available nowadays. The product is in the form of a liquid that is sprayed on and quickly expands to 100 times its size. It can achieve R-values of R-9 per inch but most importantly, it automatically creates an almost perfect air seal upon expanding. While the product is costly, it is effective and reduces a lot of manual caulking and sealing that would be necessary with other types of insulations. The most popular forms are petroleum based but there are also green options such as BioBased Insulation that is composed of 96% bio-content (soy-beans). (Ludeman, 2008) 2.1.1.11 Structurally Insulated Panels (SIPs) / ICFs Structurally Insulated Panels are arguably the best way to achieve a tightly sealed and well insulated building. They are basically two sheets of OSB with spray foam insulation sandwiched between them. They are both structural as well as insulating so they eliminate the need for traditional framing and can streamline the construction of a building is assembled properly. All seams are sealed and there is no thermal bridge from studs. The only downfall is many contractors are unfamiliar with them and they can be quite pricey. Many of the green builders are using Structurally Insulated Panels because there are vehemently opposed to stick building as they view it an obsolete building practice. (Ludeman, 2008) Therefore, apply the thermal insulation for buildings will prevents or reduces heat from escaping a building or from entering a building. Thermal insulation can keep an enclosed area such as a building or a room warm for the cold climate countries like United Kingdom, Poland, New Zealand and so on; or it can keep the inside of a building or a room cold for the tropical climate countries such as Malaysia, Indonesia, Thailand, and so on. So, the thermal insulators are applied and functions to minimize that heat energy transfer from the buildings. In thermal insulation, the R-value is an indication of how well for a material insulates for the buildings. 2.1.1.12 R-value The R-value is the total thermal resistance (RT) for any building elements, including the surface thermal resistances of the air on either side of the building elements. The conductivity of bulk insulation materials will change with the temperature of the material. (Williamson, 2007) It is significant to realize that the boundary conditions and other factors used in the calculation of the R-values, which will cause the R-value different. The total thermal resistance of a flat for building element consisting of layers perpendicular to the heat flow is calculated using the expression: RT = Rsi + R1 + R2 + . . . . . + Rn + Rse Rsi is the internal surface resistance; R1, R2, .Rn are the thermal resistances of each layer, including bridged layers; Rse is the external surface resistance [Source: Dr Terry Williamson (2007)] An air space for the thermal resistance within a building element is depends on the valid emissivity of the space as well as the mean temperature and the difference in temperatures either side of the space.(Williamson, 2007) It follows therefore that the calculation of the R-value of a building element containing air spaces depends on the conditions assumed externally and internally.(Williamson, 2007) Thus, the flow of heat can be reduced by applying thermal insulation materials to the buildings and The rate of heat transfer is dependent on the physical properties of the material employed to do this. Insulation for the home has R-values usually in the range of R-10 up to R-30. The following is a listing of different materials with the English measurement of R-value: Material R-value Hardwood siding (1 in. thick) 0.91 Wood shingles (lapped) 0.87 Brick (4 in. thick) 4.00 Concrete block (filled cores) 1.93 Fiberglass batting (3.5 in. thick) 10.90 Fiberglass batting (6 in. thick) 18.80 Fiberglass board (1 in. thick) 4.35 Cellulose fiber (1 in. thick) 3.70 Flat glass (0.125 in thick) 0.89 Insulating glass (0.25 in space) 1.54 Air space (3.5 in. thick) 1.01 Free stagnant air layer 0.17 Drywall (0.5 in. thick) 0.45 Sheathing (0.5 in. thick) 1.32 [Source:  Hyperphysics Georgia State University] Another mathematical expression used in thermal quantification, and the most common reference used by the insulation industry, is U-value, or flow rate of heat through a building elements. 2.1.1.13 U-value U-value is to be used for describe the amount of heat loss or also called as thermal transmittance, that occurs through an element of construction such as a wall or window. (Raynham, 1975) If an element of construction has a lower the U-value the less energy is lost and the better is its insulating characteristics.(Zimmermann Bertschinger, 2001) It has the same unit as thermal conductivity, except that since a U-value refers to a given construction, the thickness of which is taken into account, it has the unit W m-2 K-1. U-value is computed according to the formula: U=(Ri s+ Re s,+Rc a v+k1-l+k2-1+†¦)-l Ri s and, Re s are the thermal resistances of internal and external surfaces respectively; Rc a v is the sum of thermal resistances of any cavities; k1-l+k2-1+†¦ are the thermal resistances of each material used. [Source: Mark Zimmerman Hans Bertschinger (2001)] Since the U-value is a measurement of heat flow, the lower the U-value, the more slowly does the material transfer heat in and out of the home. The U-value typically is used in expressing overall thermal conductance, since it is a measurement of the rate of heat flow through the complete heat barrier, from room air to outside air.(Anderson, 2006) The lower the U-value, the better is the insulating value. The U-value of a constructional element of buildings would decreases rapidly as the first few centimeters of thermal insulation are added.(Rouni, 2005) An even more increase in thermal insulation thickness does not always lead to an equally fast decrease in the U-value. The thicker the thermal insulation layer already is, the less the decrease in the U-value is by more adding thermal insulation.(Rouni, 2005) The following diagram shows the decrease in the U-value as the thickness of the insulation layer increases. [Source: GK Rouni (2005)] Temperature and temperature variations govern much of our daily lives, the environmental factors such as temperature, radiation, air motion, and humidity, as well as on personal factors such as activity levels, clothing selection and expectation, all of those factors are contribute to the state of thermal comfort.(Bynum, 2000) Thermal comfort is a term given the varying nature of the human condition, has been described as a feeling of well-being, an absence of discomfort, or a state of mind that is satisfied with the thermal environment. (McDowall, 2007) 2.1.2 – Uses of thermal insulation The human beings have demonstrated that we are need for the protection from the elements of construction and although many of these factors are continuously in flux, but the proper use of thermal insulation, placement of vapor barriers, and understanding of heat transfer will contribute to providing an environment conducive to thermal comfort within the buildings to the human.(Bynum, 2000) Thermal insulation is the better way to protect anything against the heat because the material use for this is really heat absorbing material. Thermal insulation is to be used to perform many of the functions and the primary purpose of thermal insulation is to reduce heat loss or heat gain through the exterior assemblies of a building in order to achieve energy conservation.(Stettler, 2009) Basically thermal insulations reduce the rate of heat transfer because there are special type of thermal insulation material which converts the heat energy to some other form by conduction, convention and radiation as mentioned as foresaid. [Source: exergia] As the drawing shows that the houses lose heat through walls, windows, doors, floors, roofs and ventilation.  Thermal insulation, quality double-glazed windows and controlled ventilation can reduce the heat losses by as much as 50%, thus reducing the heating costs in the cold climate.(Weber, 2006) However, an energy efficient home featuring thermal insulation, shading, brightly colored external surfaces and controlled ventilation also greatly enhance the thermal comfort by offering protection from the heat and radiation of the sun. (Weber, 2006)  This also helps to drastically reduce the electrical bills that pay to run air conditioners in tropical climate. Besides that, apply thermal insulation for buildings will protect the environment through the reduction of Chlorofluorocarbon (CFC), Carbon Dioxide (CO2), Nitrogen Oxide (NOx) and greenhouse gases. (Stettler, 2009) The greenhouse effect to a great level decides the climate on earth. Growth in emissions of greenhouse gases related with human activities menaces the climate balance. Chlorofluorocarbon (CFC) and Carbon Dioxide (CO2) are the main greenhouse gas which are emitted due to air-conditioners are function to provide cool or hot air and increasing thermal comfort of buildings, there have led to rapid growth in the amount of Chlorofluorocarbon (CFC) and Carbon Dioxide (CO2) in the a atmosphere. Heating, air conditioning and refrigeration are the causes that result in this growth. If no action is taken at all, the EU Member States said that greenhouse gas emissions could be expected to further increase by 17% between 1990 and 2010, while the target set by the Kyoto Protocol for the period is to reduce the emissions by 8%. The reasonable level of expenditure on insulation is directly related to the amount of the heat loss or heat gain, and to the electricity of air-conditioning required to produce an appreciable return in terms of electricity saving. Fortunately, it is possible to reduce energy consumption and the associated Chlorofluorocarbon (CFC) and Carbon Dioxide (CO2) emissions in heating and air conditioning by one third by using more or better insulation for the buildings.(Roberts, et al. 1981) Furthermore, the thermal insulation also can be used in buildings in order to prevent or reduce condensation on surfaces.(Raynham 1973) If wants to prevent condensation on the surface of walls, it is necessary to have adequate ventilation and sufficient insulation and heat input. It is also necessary to consider the question of whether condensation is likely to occur within a structure. Since most structures experience a falling dew point especially where insulating internal linings are provided, as well as temperature gradient from inside to out, it is possible for the temperature on the cold side of the insulation to fall below the dew point, causing interstitial condensation.(Raynham 1973) This can be controlled by providing water vapour barriers on the warm side of the insulation. This may take the form of polythene film or certain types of paint treatment, such as chlorinated rubber on the insulated lining. In some situations such as factory roofs and some timber flat roofs, ventilation is provided above the insulation to remove any water vapour that has penetrated that far.(Raynham 1973) Thermal insulation also can use to prevent or reduce damage to buildings when occur fire in the buildings or near the buildings.(Raynham 1973) When fire breaks out in a compartment the contents of the whole room are heated up, leading to accumulation of flammable gas. Eventually a point is reached when these gases, together with the materials evolving them, suddenly kindle and thus involve the whole room in fire. Tests done many years ago at the Fire Research Station (Raynham 1973) investigated the factors leading to a short, and therefore dangerous, flashover time. Tests involving fires in domestic sized rooms with insulating board and hardboard wall linings showed that flashover occurred at between 8.5 and 12min. Two further tests made with a noncombustible sprayed insulating lining gave flashover times of 8 and 4.5 min, thus suggesting that the thermal insulating characteristics of a lining are probably more significant from a fire development point of view than its combustibility. If this is true to any extent, significantly improved standards of thermal insulation, such as we are about to adopt in this country, are almost certain to accentuate the fire risk, especially in dwellings. The thermal insulation also can be installed in the mechanical system in commercial buildings and industrial processes.(Avtivity, 2008) In buildings such as shopping centers, schools, hospitals, and hotels, mechanical insulations are installed to improve the energy consumption of the cooling and heating systems for buildings, domestic hot and cold water supply, and refrigerated systems including ducts and housings. However, for industrial facilities such as power plants, refineries, and paper mills, mechanical thermal insulations are installed to control heat gain or heat loss on process piping and equipment, steam and condensate distribution systems, boilers, smoke stacks, bag houses and precipitators, and storage tanks.(Avtivity, 2008) Thermal insulation for mechanical system is to dominate the temperatures of the surface for personnel and equipment protection. That is one of the most effective mediums of protecting workers from second and third degree burns resulting from skin contact for more than 5 seconds with surfaces of hot piping and equipment operating at temperatures above 136.4 °F.(Avtivity, 2008) Thermal insulation will function to reduces the surface temperature of piping or equipment into a safer level as required by OSHA, resulting in increased worker safety and the avoidance of worker downtime due to injury.(Avtivity, 2008) Besides, thermal insulation also will control the temperature of commercial and industrial processes when installed in the mechanical system.(Avtivity, 2008) Thermal insulation can help maintain process temperature to a pre-determined value or within a predetermined range by reducing heat loss or gain. The insulation thickness must be sufficient to limit the heat transfer in a dynamic system or limit the temperature change, with time, in a static system.(Avtivity, 2008) The need to provide time for owners to take remedial action in emergency situations in the event of loss of electrical power, or heat sources is a major reason for this action in a static system. At last but not least, installed the thermal insulation in the mechanical system will reduce noise from mechanical systems.(Avtivity, 2008) Insulation materials can be used in the design of an assembly having a high sound attenuation or sound resistance. The sound transmission loss when the thermal insulation to be installed between the source and the surrounding area.(Avtivity, 2008) So, thermal insulation not only can be used for building but also for the mechanical system in commercial buildings and industrial processes in order to achieve different effects. 2.2 – The importance or advantages of thermal insulation in Malaysia 2.2.1 – Advantages of thermal insulation in Malaysia Governments all over the world are beginning to recognize the significance of reducing dependence on energy imports as fuel reserves becomes scarcer and supplies are focused on a few politically unstable countries. In the Malaysian context, the ener

Social Security Essays -- essays research papers

Title of Paper : Social Security Social security, created in 1935, is the most costly item in the federal budget. The program provides old age, survivors’ and disability insurance to a healthy portion of Americans. Workers and their employers fund the system by each paying payroll taxes. The Internal Revenue Service collects the taxes and deposits the money in government-administrated accounts known as the Old Age and Survivors and Disability Insurance Trust Funds(OASDI). The payroll tax revenues are used to pay benefits to those people currently collecting Social Security pensions. Social Security taxes also pay for Medicare, the national health program for the elderly. The huge problem with the current situation facing Social Security is the increasing deduction of workers in the work force paying for workers retired. â€Å"Due to the large number of aging baby boomers, American 65 and older are the fastest-growing segment of the population. The population growth of Americans age 65 and older is 112% in the years between 1995 and 2040. The population growth in age 20-64 is 24%. The population growth in ages under 20, is 5%.   Ã‚  Ã‚  Ã‚  Ã‚  What these numbers essentially represent is a cause problem with age differences in the future. Soon, less workers will be in the job force trying to supply more retirees with Social Security. Currently, many ideas have been juggled around trying to find a sound and reasonable way to resolve this problem. Granted, the problem will not happen overnight, but rather over a long arduous duration of time.   Ã‚  Ã‚  Ã‚  Ã‚  The question first arises, â€Å"Can the existing system survive without major reforms?† The early designers of Social Security and many Democrats are baffled at the recent proposals to change Social Security. Most believe that Social Security is still able to provide a safety net for retirees and their survivors if minor adjustments are made. â€Å"Occasionally raising payroll taxes or recalculating the way benefits are paid out.† Some Democrats look at major reform as a way of pitting war between generations. They stand on common beliefs that Social Security has worked for over 60 years by providing a steady stream of monthly payments that beneficiaries can rely on. Also, it has helped lift millions of seniors out of poverty. Democrats also criticize the Grand Old Party for â€Å"playing†... ...vatization of personal savings would be advantageous to the nation’s economy, delivering bigger pensions to workers and helping the economy grow faster. Some believe the emphasis on personal savings would give the added feature of encouraging more individual responsibility at a time when the nation prepares for a surge in its elderly population. Privatization would differ from Social Security in two important ways. First, the amount a worker receives at retirement depends solely on how much one contributes to savings and how well the investments perform. In simplified notation, those who set aside more and invest wisely enjoy more comfortable retirements. Secondly, pensions are paid out of an individual’s accumulated savings instead of financed by taxes on active workers. For example, Chile for a little less than two decades has replaced it’s system which was much like Social Security with a system incorporated around the idea of privately invested accounts. The results are astounding. The plan is relatively elementary because it focuses on workers placing 10 percent of their monthly income into a savings account. With this, government leaders boosted the national savings rate Social Security Essays -- essays research papers Title of Paper : Social Security Social security, created in 1935, is the most costly item in the federal budget. The program provides old age, survivors’ and disability insurance to a healthy portion of Americans. Workers and their employers fund the system by each paying payroll taxes. The Internal Revenue Service collects the taxes and deposits the money in government-administrated accounts known as the Old Age and Survivors and Disability Insurance Trust Funds(OASDI). The payroll tax revenues are used to pay benefits to those people currently collecting Social Security pensions. Social Security taxes also pay for Medicare, the national health program for the elderly. The huge problem with the current situation facing Social Security is the increasing deduction of workers in the work force paying for workers retired. â€Å"Due to the large number of aging baby boomers, American 65 and older are the fastest-growing segment of the population. The population growth of Americans age 65 and older is 112% in the years between 1995 and 2040. The population growth in age 20-64 is 24%. The population growth in ages under 20, is 5%.   Ã‚  Ã‚  Ã‚  Ã‚  What these numbers essentially represent is a cause problem with age differences in the future. Soon, less workers will be in the job force trying to supply more retirees with Social Security. Currently, many ideas have been juggled around trying to find a sound and reasonable way to resolve this problem. Granted, the problem will not happen overnight, but rather over a long arduous duration of time.   Ã‚  Ã‚  Ã‚  Ã‚  The question first arises, â€Å"Can the existing system survive without major reforms?† The early designers of Social Security and many Democrats are baffled at the recent proposals to change Social Security. Most believe that Social Security is still able to provide a safety net for retirees and their survivors if minor adjustments are made. â€Å"Occasionally raising payroll taxes or recalculating the way benefits are paid out.† Some Democrats look at major reform as a way of pitting war between generations. They stand on common beliefs that Social Security has worked for over 60 years by providing a steady stream of monthly payments that beneficiaries can rely on. Also, it has helped lift millions of seniors out of poverty. Democrats also criticize the Grand Old Party for â€Å"playing†... ...vatization of personal savings would be advantageous to the nation’s economy, delivering bigger pensions to workers and helping the economy grow faster. Some believe the emphasis on personal savings would give the added feature of encouraging more individual responsibility at a time when the nation prepares for a surge in its elderly population. Privatization would differ from Social Security in two important ways. First, the amount a worker receives at retirement depends solely on how much one contributes to savings and how well the investments perform. In simplified notation, those who set aside more and invest wisely enjoy more comfortable retirements. Secondly, pensions are paid out of an individual’s accumulated savings instead of financed by taxes on active workers. For example, Chile for a little less than two decades has replaced it’s system which was much like Social Security with a system incorporated around the idea of privately invested accounts. The results are astounding. The plan is relatively elementary because it focuses on workers placing 10 percent of their monthly income into a savings account. With this, government leaders boosted the national savings rate

In Cold Blood Literary Analysis Essay

In Cold Blood, written by Truman Capote, is a book that encloses the true story of a family, the Clutters, whose lives were brutally ended by the barrel of a 12-gauge shotgun. The killers were 2 men, each with 2 different backgrounds and personalities, each with his own reasons to take part in such a harrowing deed. Capote illustrates the events leading up to the murder in sharp detail and describes its aftermath with such a perspective that one feels that he is right there with the culprits, whose names are Dick Hickock and Perry Smith. They had very critical roles in the murder and how they themselves were caught, and in many ways they were foils for one another. Through Capote’s extensive descriptions of Dick and Perry, and his use of dialogue, imagery, and point-of-view, he makes their individual roles in the story evident and makes clear the fact that they counterbalance each other, with their opposite personalities playing major parts in the Clutter murder case. Dick and Perry’s upbringings were vastly contrasting, and their effects were evident as the men grew and developed. Capote illustrates Perry’s childhood with explicit detail and does not hold back. Perry’s upbringing was marred with violence, tragedy, and misdirection. His mother and father were divorced, and constantly had issues with each other. His mother became an alcoholic, and eventually died upon choking on her own vomit(106). He lived in, by all means, a broken home. His entire family, save for one sister, had suffered in some sort of way. Perry gives the gist of his family’s status with saying, â€Å"Jimmy a suicide. Fern out the window. My mother dead. Been dead eight years. Everybody gone but dad and Barbara. ‘† (Capote 134). Perry’s sister Fern had fallen out of a hotel window to her Khan 2 death, with police finding a bottle of alcohol in her possession. Perry’s other brother shot himself, and Perry’s father walked out of his children’s lives when they were all quite young. Not long after that, Perry was put in an orphanage run by nuns. They would whip him constantly for wetting his bed (Capote 93), which was due to Perry having a weak liver (Capote 210). Because of his experience in the orphanage, Perry gave up on God and religion. When he was still a teenager, he joined the US Army and fought in the Korean War. After he came home, he got into a grisly motorcycle accident, mangling both his legs and stunting his growth. When he recovered, he went to go work with his father up in Alaska, which, after several years, ended in an argument from a biscuit, Perry’s father aiming a gun at him, and all of Perry’s possessions being thrown out of the house. So Perry decided to leave. â€Å"I picked up my guitar and started on down the highway† (136). Through all of his early life, it is evident that Perry had to deal with terrible tragedies, a lack of parenthood, and the fact that he never truly had a true home. He never fully learned compassion, mercy, respect, or the value of human life. None of these values were ever shown to him, nor was he ever required to show them to anyone, and in addition, it made him resent many people in his life. As Dr. Jones, a psychiatrist who studied Perry, concluded: â€Å"His childhood,†¦. was marked by brutality and lack of concern on the part of both parents. He seems to have grown up without direction, without love, and without ever having absorbed any fixed sense of moral values†(297) Perry’s upbringing played a major role in carrying out the murder of the Clutter family, and contrasted sharply with Dick’s early life. Dick Hickock’s upbringing was more structured and fortunate, the opposite of Perry’s. His parents had been there to support him, and he did well in school. When asked about his son’s school life, his father responded by exclaiming,†Basketball! Baseball! Football! Dick was always the star player. A pretty good student, too, with A marks in several subjects† (Capote 158). Dick had a fruitful education, and was even offered a scholarship, to which Dick simply says, â€Å"†¦ but I never attended any of them† (Capote 278). After high school, Dick took several small-time jobs, including working at a Khan 3 motor company, â€Å"when I [Dick] had an automobile wreck with a company car. I was in the hospital several days with extensive head injuries† (Capote 278). The car accident caused his face to be slightly maligned, and, as concluded by Dr. Jones, caused residual brain damage and instability in his personality (Capote 286). Dick’s father also confirmed that Dick had changed after the crash, expressing that â€Å"He just wasn’t the same boy† (Capote 255). After experiencing the crash, many parts of Dick’s life began to go downhill. His marital life twisted woefully, and when all was said and done, he had gone through 2 marriages. He did not have a steady job anymore, and he began to commit petty crimes, such as writing bad checks and stealing. The latter resulted in him being in jail, where he had met Perry, who was behind bars for burglary as well, among other charges. Dick and Perry had both agreed to kill the Clutters, however when the time came, Dick showed signs of doubt and lingered, while Perry had almost no hesitation. This seems to point back to each man’s past, where Perry, who had a rougher childhood, did not seem to think twice about killing the family. His scarred adolescence points to a more cold-hearted, bitter, and lonely person, while Dick’s more favorable youth showed signs of mercy and conscience. Perry and Dick’s relations with other people shaped their own respective character and personalities, including their tendencies towards other people. Dick is a self-assured, commanding and charismatic person who seems to think of himself as quite masculine. He’s had a few girlfriends, and more than one wife as well (Capote 277 – 279). He was a distinct athlete in high school, and was by no means anti-social. He is a very smooth-talker, and does not have any trouble using people to his advantage (Capote 97). His ease with people as well as the large amount of people he had befriended made him more sympathetic towards the Clutters, and, if anything, made him more understanding towards other people. Perry, to contrast, did not have the self-assurance or confidence Dick had. Since he was a child, he essentially had no one, as his family was essentially gone, and he moved from place to place. He had been abused by the nuns as a child (Capote 25), had essentially no friends throughout Khan 4 his short time at school, and was bullied often, in which cases he references the â€Å"Big Yellow Bird† carrying him away form his oppressors (Capote 265). Perry himself once expressed, â€Å"My friends are few; those who really know me fewer still† (Capote 225). He has relations with a small amount of people, and among the people who he’s ever interacted with, Perry has ended up resenting a great many of them. With so much dislike for such a large number of people, Perry has a distinctly negative view of people and society in general. This leads to him essentially having no mercy for the Clutters, rather treating it like it had to be done, and that there was nothing he could do about the murders. Additionally, Perry had been a lonesome individual for most of his life, so as he travels with Dick, he becomes quite attached to him, even after their relationship sours a bit. This seems to point itself out when Perry mentions, in a potential escape plan, â€Å"What about Hickock? All preparations must include him† (Capote 265). If Perry was planning to escape, adding another individual to worry about and the risk of getting caught is much higher. Yet Perry is too attached to simply let Dick go, but Dick in on another floor regretting that he didn’t kill Perry when he had the chance. Both Dick and Perry’s relationships with other people reflect in their personalities and attitudes towards contemporary society. Perry’s passive, dainty nature and Dick’s reckless, aggressive, asserting nature serve to offset each other’s behavior to an extent. Perry does not try to assert himself, but rather conforms to what other people, who he deems ‘larger’ than him, tell him. He is the one to worry about everything, as shown when he is concerned about wearing stockings so that no one will recognize them (Capote 37), if a torn glove is a bad omen (Capote 65), and in addition to the countless times afterward that he’d talked about the authorities tracing the crime back to them, that somehow they did have a witness (Capote 109). Dick is the more daring individual. He frequently acts upon a notion and carefully considers the consequences AFTER the deed has been done. He does tend to be reckless sometimes, as he became when he was writing bad checks, and used his real name in the same city he committed the murder of the Clutters in (Capote 213). With Dick nudging Perry on in whatever scheme they were Khan 5 plotting, and with Perry holding Dick back and thinking it through, they seemed to get both a bold plan along with attention to detail. In the book, Capote gracefully shows how Perry’s actions and tendencies function and respond with Dick’s personality and habits, making it clear that they are foils for one another. Works Cited Capote, Truman. In Cold Blood. Boston, MA: G. K. Hall, 1993. Print.

In the News: Pricing of Milk

This year so far milk sales have decreased and dairy farmers are stuck with large amounts of inventory that they can't do anything with. This called for them to lower the price of the milk to under three dollars a gallon in hopes that people would buy more milk. The content of this article is relevant to the class because it covers supply and demand. In addition to this it also covers business strategy. Ultimately dairy farmers were making a lot more money in 2014 because there was a very high demand for milk.When milk ales decreased the dairy farmers were left with inventory that they could not do anything with. At this point they had to make a decision to try to save some of the inventory they had left over. In regards to food products It's a little different compared to items that do not have a sell by date. Milk expires after a certain day and it can no longer be sold. For this reason the dairy farmers and retailers were forced to cut costs to try and get more people to but more milk. This could ultimately fix their overstock problem.By lowering he cost they were hoping that people would buy more milk. If people purchase more milk it can potentially help them get rid of left over inventory. This can also be bad for dairy producers because it they are losing money on every gallon of milk they sell. If they purchased more heavy machinery and hired more workers they may have to lay people off due to plummeting costs.

Stadia and Aquaria

Stadia and Aquaria Stadia and Aquaria Stadia and Aquaria By Maeve Maddox Every so often I receive a comment like this one: Why do you and your countrymen insist on changing the English language? The plural of aquarium is aquaria, stadium is stadia, etc. etc. I like to believe that such comments are meant playfully, to get a rise out of the American. For one thing, the commenter must know that the English language was changing long before there were Americans to speak it. King James I, for whom the first permanent settlement in Virginia was named, would not have understood the English spoken by his predecessor King Alfred. And Queen Elizabeth II does not speak or write the same English that was spoken by King James I. Today’s standard British English and standard American English are different dialects. Considering that both diverged from a form of English spoken 400 years ago in England, they remain remarkably similar. As for the plural of nouns in -um, stadiums and aquariums have become the normal plurals in British periodicals as well as in American. Both dialects do retain the plural stadia in the context of Roman history. The plural aquaria may still be common among British speakers, but in the US, the Latinate plural is more likely to be used by scientists and serious aquarists than by non-specialists. The style guide for The Guardian and The Observer states this policy: Latinate -um neuter endings that are a part of the language (eg stadium) take an -s plural. Note: This style guide does not use periods with e.g., a fact that seems odd to an American: eg no full points. The Guardian/Observer guide has separate entries for the following -um nouns: addendum, plural addendums aquarium, plural aquariums memorandum, plural memorandums, not memoranda referendum, plural referendums, not referenda It also addresses the datum/data debate: data takes a singular verb (like agenda), though strictly a plural; no one ever uses â€Å"agendum† or â€Å"datum.† The Associated Press Stylebook specifies stadiums as the plural of stadium. The Chicago Manual of Style advises writers to consult a dictionary for â€Å"certain words of Latin or Greek origin such as crocus, datum, or alumna.† Here are some of the plural choices given in Merriam-Webster Unabridged: aquarium plural aquariums or aquaria compendium plural compendiums or compendia crematorium plural crematoria or crematoriums encomium plural encomiums or encomia momentum plural momenta or momentums stadium plural stadia in the context of ancient Rome; otherwise, stadiums maximum plural maximums or maxima memorandum plural memorandums or memoranda When in doubt, look up the plural of Latinate -um words in a dictionary that targets your standard dialect of English. When a choice is offered, consider the context in which the word is to be used. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Spelling category, check our popular posts, or choose a related post below:Program vs. ProgrammeDo you "orient" yourself, or "orientate" yourself?50 Tips on How to Write Good

How to Start a New Semester Strongly

How to Start a New Semester Strongly Knowing how to start a semester strongly can be one of the most important skills to learn during your time in college. After all, the choices you make during the first few weeks (and even days) of a new semester can have long-lasting effects. So just where should you focus your efforts? New Semester Basics Get a time management system. Managing your time just may be your biggest challenge while in college. Find something that works for you and use it from day one. (Not sure where to start? Learn tips for managing your time in college.)Take a reasonable course load. Taking 20 units (or more!) this semester may sound great in theory, but it most likely will come back to haunt you in the long run. Sure, it may seem like a good way to improve your transcript, but the lower grades you might get because your course load is too heavy is a sure way to bring your transcript down, not up. If you absolutely must carry a heavy course load for some reason, however, make sure that youve cut down on your other commitments so that you dont put too many unreasonable expectations on yourself.Have your books purchased or at least on their way. Not having your books the first week of class can put you behind everyone else before you even had the chance to start. Even if you have to go to the library for the first week or two to get the reading done, make sure youre doing what you can to stay on top of your homework until your books arrive. Have some but not too much co-curricular involvement. You dont want to be so over-involved that you barely have time to eat and sleep, but you most likely do need to be involved in something other than your classes all day long. Join a club, get an on-campus job, volunteer somewhere, play on an intramural team: just do something to keep your brain (and personal life!) balanced.Get your finances in order. You may be rocking your classes, but if your financial situation is a mess, you wont be able to finish the semester. Make sure your finances are in order when you start a new semester and that theyll still be that way as you head toward finals week.Have your life logistics worked out. These are different for every college student, but having the basics like your housing/roommate situation, your food/dining options, and your transportation worked out in advance is critical to making it through the semester in a stress-free way.Set up healthy outlets for fun and to relieve stress. You dont need to have a Ph.D. to know that college is stressful. Have things already in place like good groups of friends, exercise plans, hobbies, and smart ways to avoid pitfalls (like knowing how to avoid test anxiety) that will allow you to mentally check out and relax when things get intense. Get information on where to go for help you know, just in case. When, and if, you find yourself juggling more than you can handle, trying to find help while under that kind of stress is nearly impossible. Learn where to go for help before your semester begins so that, just in case things get a little rough, your small speed bump doesnt turn into a major disaster zone.

Application of electrical resistivity

Application of electrical resistivity Introduction Electrical resistivity imaging is a widely used tool in near surface geophysical surveys for investigation of various geological, environmental and engineering problems including landslide. In addition, a 2-D synthetic resistivity modelling study was carried out to understand the response of the resistivity method to a landslide problem before the field surveys (Drahor,MahmutG et al, 2006). The relevance of electrical surveys is to identify the subsurface resistivity distribution by making measurements on the ground surface. The true resistivity of the subsurface can be quantified from these measurements (Singh et al 2006). The ground resistivity is related to various geological parameters such as the mineral and fluid content, porosity and degree of water saturation in the rock. Electrical resistivity surveys have been used for many decades in hydrogeological, mining and geotechnical investigations. More recently, it has been used for environmental surveys. The resisti vity measurements are normally made by injecting current into the ground through two current electrodes (C1 and C2), and measuring the resulting voltage difference at two potential electrodes (P1 and P2). From the current (I) and voltage (V) values, an apparent resistivity (pa) value is calculated. pa = k V / I where k is the geometric factor which depends on the arrangement of the four electrodes. Resistivity meters normally give a resistance value, R = V/I, so in practice the apparent resistivity value is calculated by pa = k R The calculated resistivity value is not the true resistivity of the subsurface, but an â€Å"apparent† value which is the resistivity of a homogeneous ground which will give the same resistance value for the same electrode arrangement. The relationship between the â€Å"apparent† resistivity and the â€Å"true† resistivity is a complex relationship. An according to Singh et al (2006), an inversion of the measured apparent resistivity va lues using a computer program must be carried out to determine the true subsurface resistivity. Problem statement Landslide – Jalan Baru Gap ,Fraser Hill A recent problem faced in Malaysia is landslides on hill slopes. This harmful situation always occurred in highland area during wet season. One landslide occurred in km 90,FT055,Kuala Lumpur/Kuala Lipis (Gap Road/Tranum),Fraser Hill starting December 16 2007 until almost recently. This road is the only one that is connecting Kuala Kubu Baru or Fraser Hill to Raub. In recent tragedy on April 5 2008 at 9 pm,sliding of some boulders onto one old bridge in km 38.4,FT055,Kuala Kubu Road-Raub ,Fraser Hill ,Raub district, Pahang had occurred. The landslides are often triggered by water accumulation within part of the slope which leads to weakening of a section of the slope. Thus, it is important to accurately map the zone of ground water accumulation. Landslide is one of natural hazards that are often occur all over the world. In t ropical climate such as Malaysia, the phenomenon is common especially in hilly areas during monsoon season. According to the report by Jamaludin et al, 2006, serious natural landslides in this country normally occur in monsoon seasons where intense precipitation is the main triggering factor. Early indication of the slope stability prone area such as the landslide hazard maps may help planners and developers to choose favorable locations for locating development schemes. Careful engineering and geologic study could then follow before such specific project could be implemented.

Strategic Decision Making Case Study Example | Topics and Well Written Essays - 2500 words

Strategic Decision Making - Case Study Example There is no better appropriate timing and place other than this kind of TV appearance. Customers eagerly await such announcements when policy changes take place on the aftermath of old guard changing at the helm. The strategic significance of this decision lies in the fact that the new CEO has recognized the relevance and the importance of the TV as a medium of communication to target potential customers who otherwise would be clueless as to the future strategy of CH. Secondly CH has been going through a turbulent period. Thus the TV interview was well timed and is seen as a strategic shift in policy thrust away from what was hitherto practiced under Mr. Khan. Such a strategic initiative with a great zing in it would essentially mean a shift in the corporate strategy and a reorientation in policy in keeping with the vision of the new leadership. Thus on a closer approximation Mr. Kahn had adopted Rational Decision Making Model (RDMM) as his first choice in the process of changing the strategic environment at CH. This is obvious when one looks at the fact that Mr. Kahn had been influenced by a desire to achieve some critical corporate goals though his entrepreneurial leadership style might have acted as a dampener on the subsequent outcomes. There is no gainsaying the fact that RDMM has a number of variants and Mr. Kahn chose to focus on the bounded rationality principle as enunciated by Simon (2000).During Mr. Khan's time the company received ven ture capital support and even got listed on the London Stock Exchange (LSE). These positive developments are essentially associated with the RDMM and therefore it must be noted that his philosophy of managing the hundreds of workforce at CH was essentially based on the staff motivating and innovative management strategies (Hatch, & Schultz, 2008). Thus RDMM was an integral part of the company's overall organizational and management culture. However it must be noted that bounded rationality principle as opposed to the concept of rationality optimization would have predominated at CH despite Mr. Kahn's apparent reluctance to delegate responsibility to the lower layers in the hierarchy.A random analysis would show that Mr. Kahn also applied some intuitive decision making principles though their significance in the context of management at CH cannot be determined now except to identify some traces of organizational culture based on a family-centric system of values and morals. The strat egic management related outcomes of this approach of Mr. Kahn can be seen against the now evolving backdrop of a much vigorous normative work environment under Mr. Bamford. While much of it is purely determined by a great desire to overcome limits associated with irrational human behavior the corresponding level of work efficiency at CH can be attributed to the current leadership style of Mr. Bamford.This has been made public through his interview and its morale-boosting impact on the workforce is quite obvious though only the time will tell as to when and how the workforce would become fully motivated to achieve corporate goals as defined by the strategy. In the first place Simon's bounded rationality model is probably the most preferred by decision makers though Mr. Bamford has adopted much of it to leverage