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 35 for “"Greenhouse effect"”.
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Numerical simulation of the effects of sea level rise on estuarine processes
… earth to increase. This condition, known as the greenhouse effect, could cause the sea level to rise due to the partial melting of the polar icecaps and the thermal expansion of the oceans. Such a rise in the sea level would affect the tides, currents, and sediment and salinity distributions …
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Raman-based measurements of greenhouse activity of combustion flue gases
… activity is the underlying reason for the greenhouse effect. Hence, greenhouse gases are all infrared active. The vibrational/rotational structure that makes the molecule infrared active, also causes the energy exchange and the corresponding wavelength shift during Raman scattering. In this …
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Numerical modeling of methane venting from lake sediments
… atmosphere may contribute significantly to the greenhouse effect. The observed dynamics are poorly understood. In particular, variations in the hydrostatic load on the sediments, from both water level and barometric pressure, appear to trigger free gas bubbling (ebullition). We develop a model …
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Cloud effects on ocean mixed layer in the northeast Pacific Ocean.
This study was conducted to examine the effects of clouds on the ocean mixed layer, both short-term and seasonal. It utilized data collected at Ocean Station Papa in the northeast Pacific. Two numerical modeling simulations were performed (i.e., with variable cloud and with variable precipitation). …
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Paddock scale nitrous oxide emissions from intensively grazed pasture: Quantification and mitigation
… contributor to global emissions of the potent greenhouse gas nitrous oxide (N₂O) to the atmosphere. Nitrous oxide can absorb and transform radiative energy emitted from the sun to earth into heat. The ability of N₂O to absorb energy is part of the greenhouse effect and naturally contributes to …
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Experimental Design for Estimating Electro-Thermophysical Properties of a Thermopile Thermal Radiation Detector
… atmospheric complications such as the celebrated greenhouse effect. Scientists, in turn, rely on accurate measurements of the Earth Radiation Budget (ERB) in order to quantify changes in the atmosphere. The Thermal Radiation Group (TRG), a laboratory in the Department of Mechanical Engineering at …
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Limitation of lithium fluoride (LiF) properties for passivation layer in organic solar cells application
… light into electrical energy using photovoltaic effect. Nowadays, global warming and emission of greenhouse effect are the sources of the destruction of our mother nature. One of the best organic solar cell is polymer-fullerene cell with poly (3-hexylthiopene) (P3HT) as the donor and the …
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Stadion hemat energi bertaraf internasional di Malang: Tema bioklimatik
… tercemarnya lingkungan dari efek rumah kaca (greenhouse effect) yang menyebabkan meningkatnya global warming, rusaknya lapisan ozon hingga hilangnya hutan tropis. Dengan kondisi yang sudah sedemikian memperihatinkan, gerakan hemat energi sudah merupakan keharusan di seluruh dunia. Salah …
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Energy Policy Impacts on Air Quality and Climate at the National, Regional and Global Scale
… This work shows that in spite of a negative greenhouse effect at the top of the atmosphere, the Antarctic still warms in response to increased greenhouse gas (GHG) concentrations. This is done through the creation of a single column model, and I propose the use of the surface greenhouse …
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Product descriptors for early product development : an interface between environmental experts and designers
… in the way society thinks. The environmental effects of our choices and behavior must be internalized. In the context of product development, this internalization should occur in early product development under the guidance of an environmental expert. During early product design phases there …
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A Bio-inspired Solution to Mitigate Urban Heat Island Effects
… a result, exacerbating Urban Heat Island (UHI) effects. I sought solutions to this significant engineering issue from nature, and discovered a similar heat island effect in flowers, namely the micro-greenhouse effect. However, a special cooling effect has been observed in a peculiar temperate …
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Impacts of inundation and season on greenhouse gas fluxes from a low-order floodplain
… changing and much of this is attributed to the greenhouse effect, which has been exacerbated by increased anthropogenic releases of greenhouse gases (GHGs). However, important GHGs, carbon dioxide (CO2), nitrous oxide (N2O), and methane (CH4), are produced naturally in the soil during the …
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Proposta de atividades para o ensino de química envolvendo o tema biodiesel.
… reducing the emission of gases causing the greenhouse effect, acid rain and other environmental problems. This proposal provides theoretical, experimental and computer use. The development of classes involves the extraction of raw materials, synthesis and characterization of biodiesel, into …
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A systems perspective for assessing carbon dioxide capture and storage opportunities
Even as the acceptance of the fossil fuel greenhouse effect theory continues to grow amongst academics, statesmen and plebeians alike, the early adopters have already engaged in pre-emptive research activities aimed at mitigating the effects of such greenhouse gases. The focus of one such effort is …
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Modeling & learning from the design recommendations for California's Greenhouse Gas Cap-and-Trade System
… pollute in a business-as-usual manner. Emitting Greenhouse gases has a global impact, unlike pollutants that are released into soil or water. Global warming created by the Greenhouse effect, amongst other things is causing an increase in the ambient global temperature, causing glaciers to melt …
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Impacto ambiental de la energía geotérmica en aplicaciones residenciales mediante análisis de ciclo de vida
… emissions they produce are the main cause of the greenhouse effect, and its influence on the climatic change. In the last years, most developed countries have been putting faith in a ‘green’ transition, trying to increase the consumption of ‘clean’ and renewable energy sources instead of fossil …
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Soil solarization weed control in specialty crops
… temperatures and solar radiation, creating a “greenhouse effect” under plastic, resulting in temperatures lethal to dormant seeds of many weed species. Recent increases in demand for organic farm products dictates a need for effective, non-chemical weed control strategies, such as SS. Adoption …
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Solar-thermal hybridization of Advanced Zero Emissions Power Plants
… to have significant contributions to the greenhouse effect and global warming. Alternative energy resources, such as solar radiation, may help abate emissions but suffer from high costs of power production and temporal variations. On the other hand, Carbon Capture and Sequestration allows …
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An investigation into source and distribution of bromoform in the Southern African and Southern Ocean Marine boundry layer
… in the oxidative potential and decreases the greenhouse effect of the troposphere. A task-specific gas chromatograph with electron capture detector system, developed in-house, was used for the separation and quantitative detection of bromoform mixing ratios from environmental air samples. A …
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Thermodynamic analysis and performance evaluation of PTC receiver with external annular fins
… impacts. With the depletion of fossil fuels and greenhouse effect, the utilization of solar energy has attracted increasing attention owing to the distinct advantages, including cleanliness, sustainability, inexhaustibility. This has motivated extensive research and innovation to foster a shift …
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