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Articles 1 - 7 of 7
Full-Text Articles in Civil and Environmental Engineering
Ocena Wpływu Planowanego Zakładu Termicznego Przekształcania Odpadów Komunalnych Na Jakość Powietrza W Krakowie, Robert Oleniacz, Maria Pilch
Ocena Wpływu Planowanego Zakładu Termicznego Przekształcania Odpadów Komunalnych Na Jakość Powietrza W Krakowie, Robert Oleniacz, Maria Pilch
Robert Oleniacz
The work presents air quality impact assessment for the planned Municipal Solid Waste Incineration (MSWI) plant in Krakow with a established capacity of 255000 tons per year. The evaluation is based on assumption that air pollutant emissions from the incinerator will be at the highest allowed level resulting from emission limit values for waste incineration plants with operation time each of two planned lines 7500 hours per year. Calculation results for the one of the considered localization of the MSWI plant in Krakow (district of Nowa Huta) support the thesis that building the incineration plant of this size will not …
Approaches To Mitigating Decayed Buried Timber Within Railway Embankments, Barry A. Palynchuk Phd
Approaches To Mitigating Decayed Buried Timber Within Railway Embankments, Barry A. Palynchuk Phd
Barry A. Palynchuk PhD
During the last three years, several sinkholes have been observed along CPR railway lines in Southern Ontario. The sinkholes have formed as a result of the decay of buried timber trestles in railway embankments. Although it has not occurred the sinkholes could result in hazardous changes in track geometry under load. This study summarizes the site investigation results and remedial methods implemented at five sites in southern Ontario. Remedial methods include placement geosynthetic reinforcement, soil-cement column reinforcement and grouting of voids at the trestle bents. The design, installation methods and construction constraints for the remedial options are described in this …
Design And Characteristics Of A Split Hopkinson Pressure Bar Apparatus, Radek Glaser, Jesse Haines, Christopher Knight
Design And Characteristics Of A Split Hopkinson Pressure Bar Apparatus, Radek Glaser, Jesse Haines, Christopher Knight
Radek Glaser
A Split Hopkinson Pressure Bar Apparatus, also known as Kolsky Bar that is capable of conducting compressive strain rate testing in the approximate ranges from 50 to 10^4 in/in per second was designed as a part of a Senior Design Project. Generally, this device is similar to that first used by Kolsky in 1949. The design of this device is presented here in two stages: 1. Research, design and manufacturing of the Stress Generating System 2. Experimental Part – Testing of the apparatus to obtain necessary data. The present phase of the design was focused mostly on the stress generating …
Epa Technology Programs: Engaging The Marketplace, Joann S. Lighty
Epa Technology Programs: Engaging The Marketplace, Joann S. Lighty
JoAnn S. Lighty
Condiciones De Frontera Para El Transporte Entre Medios Multifásicos, Francisco J. Valdes-Parada
Condiciones De Frontera Para El Transporte Entre Medios Multifásicos, Francisco J. Valdes-Parada
Francisco J. Valdes-Parada
Las condiciones de frontera adecuadas, ya sea de transferencia de cantidad de movimiento, calor o masa, entre dos regiones es un elemento indispensable en el desarrollo de modelos que describan el transporte en sistemas heterogéneos. Por tal razón, es común encontrar en la literatura condiciones de frontera que, si bien pueden ser adecuadas para describir un fenómeno particular, se obtuvieron empíricamente y frecuentemente incluyen coeficientes desconocidos.
Lo anterior ha despertado el interés de varios autores que, en las tres últimas décadas, han presentado metodologías que permiten obtener condiciones de frontera fundamentadas en la física del fenómeno estudiado. Entre las distintas …
Community Participation In Urban Sanitation: Experiences In Northeastern Brazil, Earthea Nance, Leonard Ortolano
Community Participation In Urban Sanitation: Experiences In Northeastern Brazil, Earthea Nance, Leonard Ortolano
Earthea Nance, PhD (Stanford University, 2004)
No abstract provided.
Digital Elevation Accuracy And Grid Cell Size: Effects On Computed Topographic Attributes, Rob H. Erskine, Timothy R. Green
Digital Elevation Accuracy And Grid Cell Size: Effects On Computed Topographic Attributes, Rob H. Erskine, Timothy R. Green
Timothy R. Green
Terrain attributes are commonly used to explain the spatial variability of agronomic, pedologic, and hydrologic variables. The terrain attributes studied here (elevation, slope, aspect, and curvature) are estimated readily from digital elevation models (DEMs), but questions remain about how the accuracy and sample spacing of the elevation data affect the estimated attributes. The main objective of this study was to quantify differences in each terrain attribute due to factors affecting DEM accuracy and grid cell size. Three data sources were compared: (i) real-time kinematic global positioning system (RTKGPS); (ii) satellite-differentially corrected global positioning system (DGPS); and (iii) U.S. Geological Survey …