Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 32 for “"Threat to the environment"”.
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Hydraulic conductivity and chemical compatibility of some Victorian soils used as liners for waste containment
Wastes generated due to human activities pose a threat to the environment, and their safe and economical disposal is warranted. Landfilling of these wastes is still the most widely practised and viable alternative for their disposal. This is usually accomplished by using engineered waste …
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Architecture Against Global Warming: A Research Institute for Sustainable Agriculture
Global greenhouse gas emissions are a serious threat to the environment. Since the Industrial Revolution, humans have exponentially released gasses and chemicals into the atmosphere which have resulted in the warming of the earth. One major source stems from agriculture and the indirect processes …
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Contribuições aos estudos de fragilidade ambiental no parque zoobotânico arruda câmara, João Pessoa - PB.
The work deals with the study of environmental fragility Arruda Câmara Zoobotanic Park (PZBAC), located in the city of João Pessoa - PB, by using geoprocessing techniques. Studies of environmental fragility grounded on the principle that nature has intrinsic functionality between physical …
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Caracterização morfodinâmica das praias de Tambaú e Manaíra – João Pessoa.
… Tambaú e Manaíra are suffering some serious environmental damages, because of the disordered occupation of this area. This present graduation thesis tries to understand the coastal dynamic and the erosion that happens between Tambaú and Manaíra beaches in João Pessoa City (from the state of …
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Riscos ambientais em comunidades subnormais - a comunidade Santa Clara no bairro do Castelo Branco
The rapid and disorderly way as has been occurring urbanization causes conurbations grow chaotically, with the absence of basic infrastructure, poor housing and poor services, further accentuating the environmental problems in urban areas, making the poor live with conditions of disaster risk in …
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Correlative elemental and electrical micro-analysis of laser fired contacts in silicon solar cells
Photovoltaic (PV) energy is an abundant and clean alternative to conventional energy sources, which pose an irreversible threat to the environment. For PV to reach cost parity with conventional energy, advances like laser-fired contacts must be adopted to improve cost levers like solar cell …
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An analysis of States’ obligations towards climate displaced persons under the African Human Rights System
Climate change poses the most menacing threat to the environment today. The effects of climate change are experienced globally, and Africa in particular is one of the most vulnerable regions. One of the main consequences of changes in climate is the displacement of populations, mostly internally. …
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A critical and comparative analysis of the under regulation of underground storage tanks in South Africa and the attendant consequences for environmental resources
In South Africa, as with the rest of the world, pollution presents a major threat to the environment and thus to the intimately linked social and economic facets of society. The very notion of sustainability is premised on the inextricability of socio-economic demands and the capacity of the …
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Sunkieji metalai Vilniaus miesto sporto aikščių grunte /
The aim of investigation was to determine distribution peculiarities of heavy metals in stadiums of Vilnius City. The 52 samples from the uppermost part (~10 cm depth) of soil were taken in year 2007. Ag, B, Ba, Co, Cr, Cu, Mn, Mo, Ni, Pb, Sn, V ir Zn contents were determined by optical atomic …
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Proposta de atividades para o ensino de química envolvendo o tema biodiesel.
Currently, it is known that the preservation of the environment is an issue of significant importance in society, since the planet has been attacked in various ways. Are vast sources of pollution carried by man, one of the most glaring is the air pollution, caused mainly by burning fossil fuels, …
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Solid Waste Biodegradation Enhancements and the Evaluation of Analytical Methods Used to Predict Waste Stability
Conventional landfills are built to dispose of the increasing amount of municipal solid waste (MSW) generated each year. A relatively new type of landfill, called a bioreactor landfill, is designed to optimize the biodegradation of the contained waste to stabilized products. Landfills with …
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Coherent Inclusivity Through Accessibility: Exploring the Application of Life-Value Ethics to Disability
This project takes a comprehensive approach to the application of life-value ethics to matters of disability. I overview the philosophical foundation of my approach, life-value ethics, in its different dimensions. I explore the distinction between life-requirements and need-satisfiers. …
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Adsorption/Desorption Process of Stimuli-Responsive Polymers on Simulated Natural Surfaces Using QCM-D & AFM Analysis
<p>The stimuli-responsive adsorption of polyelectrolytes to biosurfaces provides an important vehicle for development of protective coatings, delivery of therapeutic agents, and cosmetic applications. Developing a fundamental understanding of the mechanisms and kinetics of adsorption/desorption …
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Potential PFAS products from thermal decomposition of munitions: a DFT analysis of pyrolysis products of fluoropolymers in the presence of energetic compounds
… and polyfluoralkyl substances (PFAS) are one of the most recalcitrant anthropogenic chemicals that can bioaccumulate and have carcinogenic properties. Their ubiquity in environmental matrices and resistance toward traditional disposal techniques pose a serious threat to the environment and public …
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Can Climate Change be Successfully Incorporated into Security Policy? : Framing Climate Security and Defence in Finnish Comprehensive Security Policy through the 21st Century
The comprehensive security model of Finland’s security policy identifies anything that can pose a threat to the functioning of society and the well-being of citizens as a security threat. Climate change is included as a threat to security under this policy, but its presentation and framing as a …
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Combination of reliability tools and artificial intelligence in a hybrid condition monitoring framework for ship machinery systems
… can increase equipment failure posing a threat to the environment, affecting performance, having a great impact in terms of business losses by reducing ship availability, increasing downtime and moreover increasing the potential of major accidents occurring and endangering lives on-board. …
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Potential PFAS products from thermal decomposition of munitions: a DFT analysis of pyrolysis products of fluoropolymers in the presence of energetic compounds
… and polyfluoralkyl substances (PFAS) are one of the most recalcitrant anthropogenic chemicals that can bioaccumulate and have carcinogenic properties. Their ubiquity in environmental matrices and resistance toward traditional disposal techniques pose a serious threat to the environment and public …
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Polyvinyl alcohol size recovery and reuse via vacuum flash evaporation
… (PVA) desize effluent is a high COD contributor to towel manufacturing plant's Primary Oxygenation Treatment of Water operation, and being non-biodegradable, is a threat to the environment. When all-PVA/wax size is used in weaving, significant incentives exist to recover the synthetic polymer …
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Evaluating the natural attenuation of synthetic organic chemicals in a chalk aquifer
… Hydrocarbon contaminants regularly leach into groundwater because of human activities and accidental chemical spills. Here, the contaminants pose a threat to the environment and valuable drinking water resources. Many subsurface environments are able to purify the groundwater of such …
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An Exploratory Study on the Possible Effect of Hydraulic Fracturing Activities on Air Quality in the Eagle Ford Shale Region of Texas.
… major oil and gas formations in Texas, found in the South-Eastern region with approximately 30 counties. In addition to natural gas, it produces crude oil and petroleum liquids which in recent times has resulted in a surge in drilling due to a new drilling technology – hydraulic fracturing that …
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