Destructive processes

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  • The Committee to Review Assembled Chemical Weapons Alternatives Program Detonation Technologies was appointed by the National Research Council (NRC) in response to a request by the U.S. Army’s Program Manager for Assembled Chemical Weapons Alternatives (PMACWA). Three types of detonation technologies available from technology vendors and the Army’s explosive destruction system (EDS), collectively known as explosive destruction technologies (EDTs), are being considered for use at the Blue Grass Army Depot in Richmond, Kentucky, and the Pueblo Chemical Depot in Pueblo, Colorado....

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  • In terms of both speed and memory consumption, graph unification remains the most expensive component of unification-based grammar parsing. We present a technique to reduce the memory usage of unification algorithms considerably, without increasing execution times. Also, the proposed algorithm is thread-safe, providing an efficient algorithm for parallel processing as well.

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  • Resonant frequency measurements provide useful insight into the repeatability of MicroElectroMechanical Systems (MEMS) manufacturing processes. Several techniques are available for making this measurement.

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  • On close examination, the glowing promise of coal quickly turns to ash. Coal mining remains a deadly and environmentally destructive industry. Nearly forty percent of the carbon dioxide released into the atmosphere each year comes from coal-fired power plants. In the last two decades, air pollution from coal plants has killed more than half a million Americans. In this eye-opening call to action, Goodell explains the costs and consequences of America's addiction to coal and discusses how we can kick the habit....

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  • “Junk” bonds, as they are popularly called, or “high-yield’’ bonds, as they are termed by those wishing to avoid pejorative connotations, are simply bonds that are either rated below investment grade or unrated altogether.’ Fueled by the introduction of newly issued junk bonds in 1977, this segment of the bond market has grown rapidly in recent years and now accounts for more than 15 percent of public corporate bonds outstanding. However, the growth of junk bond financing, particularly in hostile takeover situations, has been bitterly denounced.

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  • After the ore is extracted, it is generally transferred by bridge conveyor, shuttle cars or load-haul-dump units to a system of conveyors that carry it to underground storage bins, prior to haulage to the surface through a shaft by automated skips. On rare occasions shallow mines may use a decline and conveyor arrangement. Solution mining is currently used at a number of operations in North America. The process relies on the greater solubility at elevated temperatures in brine of sylvite in comparison to salt (NaCl).

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  • In China, where population size is the biggest in the world and environmental destruction is proceeding due to the rapid economic growth and urbanization, there is a serious water pollution problem.

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  • Hydraulic fracturing is an industrial process used to extract fossil fuel reserves that lie deep underground. With the introduction of horizontal drilling, new commercial sources of energy have become available. Wells are drilled and injected with large quantities of water mixed with specially selected chemicals at high pressures that allow petroleum reserves to flow to the surface. While the increased economic activities and the outputs of domestic energy are welcomed, there is growing concern over negative environmental impacts from horizontal drilling in shale formations.

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  • The United States has been in the process of destroying its chemical munitions for well over a decade. Initially, the U.S. Army, guided by recommendations from the National Research Council (NRC), decided to use incineration as its destruction method at all sites. However, citizens in some states with stockpile storage sites oppose incineration on the grounds that the exact nature of the effluents escaping from the stacks cannot be determined.

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  • The chapters that follow offer fi rst-person accounts of the career journeys of 13 distinguished social psychologists. The authors describe their personal career journeys, the signifi cant people and events that infl uenced their paths, the major turning points, the main decisions, the challenges, the opportunities and setbacks they experienced, and how the lessons they learned along the way may shine a beacon for future social psychologists. Taken together, these chapters chronicle the history of modern social psychology.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Non-destructive on-chip cell sorting system with real-time microscopic image processing

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  • Criminals (thieves, terrorists, competitors, employees, etc.)—Criminal scenarios in- clude simply gathering information that would give knowledge of the buildings and how to break in, or maybe getting into the security system and having doors open. DoS attacks could be used for a variety of purposes including: making a political statement, interfering with business, etc. Terrorists could use low security on a net- work to shut down facility operation (i.e. as a smokescreen or disruption) that facili- tates other destructive activity.

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  • Volcanic eruptions are awesome and destructive; however, this natural phenomenon is beneficial in the long term. One of the earliest known written records of a natural disaster concerned the eruption of Pompeii in A.D. 79, and was recorded by Pliny the Younger in his letters to the historian Tacitus (Jashemski, 1979). Volcanic eruptions, ranging in intensity and numbering between 17 and 27 per year during the past decade (Bullard, 1984), continue to remind us of their potential impacts on the environment.

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  • Metaphorically, achievements, ideas, and theories are often seen as buildings, with an idea or the process of achieving something being similar to the process of building, and the failure of something being similar to the destruction of a building. Metaphorically, ideas are also like plants, and developing an idea is like getting plants to grow.

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  • The biological changes underlying the transition process from gingival health to early inflammatory changes involve local increase in vascular permeability, edema and the recruitment and activation of polymorphonuclear neutrophils (PMN) (Delima and Van Dyke 2003). Acquired immune response becomes involved once antigen-presenting cells interact with immunocompetent cells, such as T and B lymphocytes, leading to the expansion of antibody-secreting plasma cells and the development of the chronic lesion (Gemmell and Seymour 2004).

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  • Thank you for choosing Black and White in Photoshop CS3 and Photoshop Lightroom. From the highest quality capture to practical workfl ow practices, black and white conversion methodologies, non-destructive digital darkroom image processing, creative adjustments, to the latest printing techniques; this book is a fully integrated color managed workfl ow designed for the black and white photographer.

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  • Myocarditis is a clinical syndrome characterized by inflammation of myocardium. It can be produced by a myriad of etiologies including infectious, autoimmune, myocardial toxins, hypersensitivity reactions and physical agents. Virtually any infectious agent can produce myocardial inflammation and injury. Human myocarditis is most frequently caused by viral infection. Ongoing viral infection, myocardial destruction, and adverse remodeling can lead to persistent ventricular dysfunction and dilated cardiomyopathy.

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  • The short life span of mature blood cells requires their continuous replacement, a process termed hematopoiesis. New cell production must be responsive to both basal needs and situations of increased demand. For example, red blood cell production can vary over more than a fivefold range in response to anemia or hypoxia. White blood cell production increases dramatically in response to a systemic infection, and platelet production can increase severalfold when platelet destruction results in thrombocytopenia....

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  • Nature has created numerous elegant living systems, including the human, based on the hierarchical functional units—molecule, cell, tissue, and organ. A living system develops through a long evolutionary process, during which the system undergoes genotypic and phenotypic changes in response to environmental simuli.

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  • The inflammatory process both reduces collagen synthesis by inhibiting the smooth muscle cell and causes its death by apoptosis. Macrophages also produce a wide range of metalloproteinases capable of degrading all the components of the connective tissue matrix, including collagen. These metalloproteinases are secreted into the tissues in an inactive form and then activated by plasmin. Metalloproteinase production by macrophages is upregulated by inflammatory cytokines such as TNFá.

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