CHAPTER 1 INTRODUCTION 1.1 OVERVIEW Modern welding technology has just begun before the end of the 19th century with the development of methods for generating localized high temperature zones. Welding of new materials and a large increase in the thickness of components, developed only gas flame welding, which improves the welding as a demand to the engineer's known, is no longer satisfactory and the metal inert gas welding
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winters, the spreading of tropical diseases, melting of ice and the rising seas. And this is not where it stops; these events are all projected to get worse in coming years unless we stop using the atmosphere as an open sewer for the 98 million tons of global-warming pollution that we pour into it every single day. Pakistan is no stranger to the consequences of Climate Change. In the past few decades, Pakistan has been severely affected by Climate Change and the impacts on human lives have become more
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Fly ash, a coal combustion product consisting fine particles is a residual, waste matter arising from the combustion of coal from boilers used for the steam generation power plant at GHCL. Its disposal at GHCL has become a huge problem. The study aims at understanding the characteristics of the generated fly ash in detail and will investigate about finding innovative, possible solution for addressing the fly ash disposal problem at GHCL. Gujarat Heavy Chemicals Ltd. (GHCL) was establish in March
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“Global Warming is not a prediction; it is happening,” said James Hansen, who is professor directing the program on Climate Science, Awareness, and Solutions of the Earth Institute at Columbia University. Global climate change is the rise in the overall temperature of the Earth's climate. As the temperature rises, the glaciers would melt faster, causing sea levels to rise. In addition to that, some scientist expect that the weather patterns may become more severe. There are many effects of global
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soil erosion (Darmawan and Mulyanto, 2001). Historical study of forest fire is significant for ecological and forest management applications(Iniguez et al. 2008). In terrestrial ecosystems, Landuse change and fires are considered as the drivers of global change(Rudel et al. 2005;Fraterrigo et al.
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The Nielsen Company has conducted a Global Survey on Corporate Social Responsibility between 18th February and 8th March 2013. The survey found that 50 percent of global consumers surveyed are willing to pay more for goods and services from companies that have implemented programs to give back to society. In that number, more than two-thirds of respondents
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Abstract:Oil pollution has been the major environmental effect in oil producing countries particularly where crude oil exploration tales place. In Nigeria, the problem is more pronounced in the Niger-Delta region. Poultry farming is a very lucrative business in Nigeria where both chickens (layers and broilers) are found particularly in the northern part of the country. The eggshells are usually thrown and allowed to liter the environment. A column study was used to test the ability of the eggshell
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retreat, warming oceans, shrinking ice sheets extreme events, ocean acidification. What do these have in common? Two words: Global Warming. The Earth’s global temperature has change throughout history but never have the Earth’s temperatures have been as high as they are now. After the Industrial revolution, global warming has increasingly becoming a threat. Consequently, global warming is becoming a bigger threat that needs to be addressed before even more serious damage is done. “Scientific evidence
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Site One - The Rangipo Desert The Rangipo Desert is approximately 1000m above sea level, East of Mount Tongariro. This fairly high altitude means the desert receives more sunlight than most places, and it is often plagued by strong northwesterly winds sweeping off the surface of the mountain. Funneling through the mountains and becoming very intense throughout the desert, these powerful winds test the durability of the vegetation growing here. These plants therefore must be accustomed to the strong
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compounded stressors. In both cases there is a genetic factor involved in both the host and pathogen involved. Lastly, Harvesting and shipping probably represent the most significant stress because of changes in water pH, temperature, ammonia, salinity, etc during the transportation and holding processes. Most mortality occurs at or near the time of containment change but acclimation can help fish. Fish brought in a tank are already stressed. This is why it is so important that the tank must be
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