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 133 for “"Loading Rates"”.
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Application of the SWAT Model to Bacterial Loading rates in Kranji Catchment, Singapore
… watershed was constructed to estimate bacterial loading to the reservoir as driven by changing weather conditions. The watershed stream network was recreated using ArcSWAT, a version of the Soil and Water Assessment Tool used with geographic information system software. This model is based on a …
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Effects of Curing Cycle and Loading Rates on the Bearing Stress of Double Shear Composite Joints
… inside the double shear joint fixture at a loading rate of 0.05 in./min. (quasi-static). The second task is to numerically model and validate the aluminum double shear joint specimen. The third task is to test the Unidirectional MTM 49 carbon fiber pre-preg double shear composite joint …
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An investigation of the forces within the tibiae at typical blast loading rates : with different boots
… (MiL-Lx) legs, are used to quantify the impulse loading on the lower extremities when subjected to the forces of the rapidly deforming floor. These surrogate legs are also used in laboratories for simulated blast loading tests and scaled field tests to evaluate protection measures for the lower …
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Stress-density relationships for an agricultural soil
Triaxial tests under high loading rates and different confining pressures simulate the multi-pass effect of a tractor wheel loading on the soil. A volume measuring technique was developed to be used in triaxial tests conducted under high loading rates. A sandy clay agricultural soil was tested …
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Effect of copper and nickel on the performance of an activated sludge system treating cellulose acetate wastewater
… Metal (SUM), Dissolved Metal (DM), Total Metal Loading Rate (TMLR), and Specific Total Metal Loading Rate (STMLR) were useful parameters for analysis of the effects of the metals on activated sludge performance. No significant changes in effluent COD, SS, and OUR were observed for the acclimated …
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A STUDY OF THE MICROORGANISMS INHABITING ROTATING BIOLOGICAL CONTACTOR BIOFILMS DURING VARIOUS OPERATING CONDITIONS
… in RBC biofilms as a function of organic loading. Biofilms, in pilot-scale RBCs receiving 2.0, 4.0, and 6.0 g TOC/m('2)(.)d of settled domestic sewage, were examined using light and electron microscopy. The microbial community, composed of filamentous and unicellular bacteria, …
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Modelling of dislocation-mobility-controlled brittle-to-ductile transition
… along with the numerical results for several loading rates. The constant-dislocation-density material is capable of predicting the BDT temperature at different loading rates. However, the constant-dislocation-density material cannot capture the sharp transition seen in the experimental data. …
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Efficiency of soil aquifer treatment in the removal of wastewater contaminants and endocrine disruptors. A study on the removal of triclocarban and estrogens and the effect of chemical oxygen demand and hydraulic loading rates on the reduction of organics and nutrients in the unsaturated and saturated zones of the aquifer.
… of Soil Aquifer Treatment (SAT) under different loading regimes, using wastewater of much higher strength than usually encountered in SAT systems, and also to investigate the removal of the endocrine disruptors triclocarban (TCC), estrone (E1), 17¿-estradiol (E2) and 17¿- ethinylestradiol (EE2). …
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Increased Effluent Dosage Effects on Septic System Absorption-field Products of Differing Architecture Types
… (i.e., March 13 to October 4, 2013), effluent loading rates were approximately doubled from the maximum allowable loading rate for each product. The pipe-and-tire-chip, 46-cm-wide trench pipe-and-gravel, and the 25-cm diameter GLP products had the greatest (P < 0.001), while the 31-cm-footprint …
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The Influence of Hydraulic Loading Rate on Nitrification Performance in a Two-Stage Biological Aerated Filter Pilot Plant
… the system was operated at different hydraulic loading rates that resulted in a range of applied organic and ammonia mass loadings. Performance was monitored regularly for water quality parameters in the effluent and along the length of the reactors. It was found that nitrification performance …
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Novel Reactors for Biological Treatment of High Strength Nitrogen and Carbon Wastewater
… The first objective of this research demonstrates the use of MABR-PAXs to reliably treat separated-source urine (urine+ flush water) wastewater with minimal consumables. In MABR systems, gas-permeable hollow fiber membranes were utilized to provide O2 and support bacterial attachment to the …
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Tensile Material Properties of Human Costal Cartilage Perichondrium
… common injuries resulting from blunt thoracic loading scenarios, including motor vehicle collisions. The costal cartilage is a cylindrical hyaline cartilage composed of two layers: a core interstitial matrix enveloped by the perichondrium. The perichondrium itself has an inner chondrogenic …
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Development of a new high-rate anaerobic process for the treatment of industrial and domestic wastewaters: the anaerobic migrating blanket reactor (AMBR)
… as a substrate at chemical oxygen demand (COD) loading rates up to 30 g/L/d. Furthermore, the AMBR was able to retain high levels of granular biomass at these loading rates. Due to moderate shear forces by mechanical mixing, the laboratory-scale AMBR was able to treat non-acidified sucrose at …
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THE EFFECT OF STEP RATE TRAINING ON RUNNING ECONOMY AND BIOMECHANICS
… vertical GRF (Fz), peak braking force (Fy), and loading rates (vertical impact peak, vertical average loading rate, and vertical instantaneous load rate) were measured before and after training. The intervention and the control group resulted in no significant change (<em>p</em> > 0.05) in any …
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Erosion and nutrient loading characteristics of two small agricultural watersheds in Piedmont Virginia
… were collected, analyzed, and used to compute loading rates of sediment, nitrate N, ammonium N, TKN, orthophosphate P, and total P on an event basis. Yields from missed storms were estimated from log-log linear least squares regression rating curves. Seasonal and annual totals of loading rates …
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Biological and Chemical Renovation of Wastewater with a Soil Infiltrator Low-Pressure Distribution System
… numbered as 1 and 2 with effluent design loading rates of 5.1 and 10.2 Lpd/m2, respectively (actual loading rates of 2.4 and 4.9 Lpd/m2, respectively). Soil matric potentials compared seasonally for each subsystem and indicated that both provided similar hydraulic performance. Background …
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Bioremediation of Phenolic Compounds in Circulating Packed Bed Bioreactor
… on the impact of phenols concentration and loading rate on the removal percentage and removal rate for influents containing individual and mixture of phenols (binary and ternary) for a wide range of conditions. The toxicity of treated effluent samples generated under various conditions was …
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Determining an Appropriate Organic Matter Loading Rate for a Created Coastal Plain Forested Wetland
… native forested hydric soils. However, optimal loading rates for created wetland soil reconstruction have not been rigorously established. Our objective was to determine appropriate organic amendment loading rates for a Coastal Plain mitigation wetland based on 1) soil properties reflective of …
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Using SLEUTH Land Cover Predictions to Estimate Changes in Runoff Quality and Quantity in the Delmarva Peninsula
… water quality were calculated based on nutrient loading rates for sediment, phosphorus, and nitrogen. These nutrient loading rates correspond to different land uses within different county segments in the peninsula. The expected changes in water quantity were quantified using the United States …
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Anaerobic digestion comparison of manure leachate by high-rate anaerobic reactors
… criteria for such reactors including organic loading rates (OLRs) and hydraulic loading rates (HLRs). In the first part of this research, the influence of the hydraulic loading rates (HLR) in high-rate anaerobic reactors was investigated. The upflow anaerobic sludge blanket (UASB) reactor …
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