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.
Results
Showing 1 to 20 of 257 for “"Environmental parameters"”.
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An environmental parameters descriptor
Call number: LD2668 .T4 1978 R62
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An environmental parameters descriptor
Call number: LD2668 .T4 1978 R62
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Modelling of environmental parameters in lake environmnets using neural networks
Aquatic pollution is one of the most serious environmental issues that the human kind has to deal, especially the last decades. Therefore, the aquatic environments are suffering a great environmental pressure as well. Since the lakes are having about the 90% of the Earth’s liquid freshwater, their …
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The relationship between rotifers, vitamin B12, and selected environmental parameters in Pandapas Pond, Virginia
Vitamin B12 concentrations, measured as combined, uncombined, and total, were determined in Pandapas Pond, Virginia, June through December 1977. Average summer vitamin B12 concentrations (all forms) were higher than during the fall and winter. Mean concentrations of combined, uncombined, and total …
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Performance bounds on matched-field methods for source localization and estimation of ocean environmental parameters
… estimation of source location and/or ocean environmental parameters by exploiting full wave modeling of acoustic waveguide propagation. Typical estimation performance demonstrates two fundamental limitations. First, sidelobe ambiguities dominate the estimation at low signal-to-noise ratio …
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Influence of environmental parameters on atmospheric aerosol size distributions in a South African coastal zone
… distributions with changes in meteorological parameters. An increase in aerosol concentrations with an increase in wind speed during clean marine conditions resulted in the identification of sea spray generation and long-range transport as the dominant natural aerosol processes with the type …
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Performance bounds on matched-field methods for source localization and estimation of ocean environmental parameters
… estimation of source location and/or ocean environmental parameters by exploiting full wave modeling of acoustic waveguide propagation. Typical estimation performance demonstrates two fundamental limitations. first, sidelobe ambiguities dominate the estimation at low signal-to-noise ratio …
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The effect of operational and environmental parameters on the acid-phase anaerobic digestion of primary sludge
… explored the effect of certain operational and environmental parameters on the acid-phase anaerobic digestion of primary municipal sludge. The operational parameters included the hydraulic retention time (HRT) and the solids retention time (SRT), while pH, reactor configuration and influent …
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Prediction of indoor environmental parameters for naturally ventilated building using artificial neural network: a reflection of outdoor parameters
… to develop predictive model to forecast indoor environmental parameters using Artificial Neural Network (ANN) technique. Field measurements were conducted at four traditional Malay houses in Peninsular Malaysia to acquire the actual indoor and outdoor data; and to provide data for network …
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Prediction of indoor environmental parameters for naturally ventilated building using artificial neural network: a reflection of outdoor parameters
… to develop predictive model to forecast indoor environmental parameters using Artificial Neural Network (ANN) technique. Field measurements were conducted at four traditional Malay houses in Peninsular Malaysia to acquire the actual indoor and outdoor data; and to provide data for network …
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Spatial variability of the ambient noise field associated with the Marginal Ice Zone and its relationship to environmental parameters
During the month of July 1987 an acoustical experiment was conducted by the United States Naval Research Laboratory (NRL) in the East Greenland Sea Marginal Ice Zone (MIZ) . Ambient noise "hot spots" or concentrated areas of relatively high noise levels were found along the ice edge using a towed …
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The holocene ostracods of the Agulhas Bank, South Africa : their classification, distribution and ecology
… bottom water on the Agulhas Bank, has provided environmental parameters for each sediment sample location, enabling relationships to be described between ostracod faunas and environmental conditions. Quantitative factor analysis has been carried out on the twenty-four most abundant species, …
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Digital graft : towards a non-homogeneous materiality
… responding locally to flows of programmatic and environmental parameters.
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Evaluation Of A Microwave Radiative Transfer Model For Calculating Sat
… brightness temperature is a function of fourteen environmental parameters, including atmospheric profiles of temperature, pressure and moisture, sea surface temperature, and cloud liquid water. Input parameters to the RTM model include data from NOAA Centers for Environmental Prediction (NCEP), …
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The development of a methodology for the identification of potential wet grassland restoration sites in south west England
… prediction of species composition based on the environmental characteristics of a site. Three separate sections of the research could be distinguished. The first section studied the relationships between the wet grassland location and the landscape topography, catchment hydrology and soil …
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Η ΑΛΛΑΓΗ ΤΟΥ ΠΑΡΑΔΟΣΙΑΚΟΥ ΠΡΟΤΥΠΟΥ ΔΙΑΧΕΙΡΙΣΗΣ ΤΗΣ ΓΗΣ ΣΤΟ ΑΡΧΙΠΕΛΑΓΟΣ ΤΟΥ ΑΙΓΑΙΟΥ: ΕΠΙΠΤΩΣΕΙΣ ΣΤΑ ΝΗΣΙΩΤΙΚΑ ΟΙΚΟΣΥΣΤΗΜΑΤΑ
… DEGRADATION AS IT CONCERNS BOTH AGRICULTURAL AND ENVIRONMENTAL PARAMETERS.
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Development of methodology for community level toxicity testing using the fathead minnow seven day survival-growth impairment test
… responses. The research involved control of environmental parameters, improvement of feeding regimes and testing of the final community. The results are presented as four separate papers. The first paper addresses the development and validation of a standardized reconstituted water for …
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Estudo de comunidades incrustantes sobre painéis experimentais em três áreas da Baía de Guanabara, RJ, Brasil
… data about the fouling organisms and also environmental parameters such as temperature, salinity, pH, dissolved oxygen (D.O) biochemical oxygen demand (B.O.D) ammonia, nitrite and nitrate were analysed.
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