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 30 for “"Efficient removal"”.
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Group key agreement in dynamic tactical networks
… focus of this thesis is on finding a secure and efficient solution to group key agreement in a tactical network. Existing group key establishment protocols were surveyed, but many were found inept in this setting. The best solution was the Arbitrary Topology Group Diffie Hellman (AT-GDH). …
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Techniques for noise suppression and robust control in spin-based quantum information processors
… quantum mechanically allows the relatively efficient solution of many important problems thought to be intractable on a classical computer. A primary challenge in experimentally implementing a quantum information processor is the control and suppression of environmental noise that decoheres …
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Scale formation, properties and de-scaling in steelmaking
… gases which results in scale formation. Inefficient removal of the formed scale during reheating affects product surface quality. The effect of steel composition and operating parameters on scale formation and scale removal efficiencies were investigated. Experimental investigations were …
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Investigating human pharmaceutical compounds present in municipal and hospital wastewaters and options for their removal
… aimed to identify the factors affecting the removal efficiencies of these compounds in biological wastewater treatment plants (WWTPs) under different environmental conditions. Of the pharmaceutical compounds selected for this study, the highest influent concentrations measured in municipal …
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Occurrence, monitoring and removal of drinking water contaminants by advanced technologies
… two major areas were targeted: (1) perchlorate removal and (2) drinking water DBP and emerging contaminant formation by an alternative disinfectant (peracetic acid, PAA). Perchlorate monitoring was performed at higher risk DWTP locations within the state of Missouri with levels below the …
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Degradação termocatalítica de misturas de poliolefinas e biomassa
… paraffincontent of products, also promoting efficient removal of oxygen.
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A Water Quality Assessment of the Occoquan Reservoir and its Tributary Watershed: 1973-2002
… measures for highly reliable and highly efficient removal of particulates, organics, nutrients, and pathogens. Eliminating most of the water quality problems associated with point source discharges in the watershed, this state-of-the-art treatment is the foundation for the successful …
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Investigation of a Novel Mitophagy Regulatory Pathway and Chemical Inducer
… important roles in cell death. Therefore, the removal of damaged or excessive mitochondria through autophagy, a process called mitophagy, is critical for maintaining proper cellular function. Much of the research elucidating the mechanism and regulation of autophagy was performed in yeast …
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CO₂ compression for capture-enabled power systems
… of the different options being investigated for efficient removal of carbon dioxide from power plant emissions. It then examines conventional compression technologies, and how they have each evolved over time. Sample engineering calculations are performed to model gas streams processed by these …
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Liquid-vapor phase change phenomena for heat exchangers and electronics cooling
… process due to its superior heat transfer coefficients as compared to single phase heat transfer. Among the fluids used as refrigerants, water is of interest for its good thermodynamic properties. It is in addition widely available, inexpensive and of no health hazards. In particular, liquid …
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Phosphatidylserine-Based Nanoparticles For Tolerance Induction Towards Therapeutic Proteins
… initiates macrophage recognition, uptake, and removal of the apoptotic debris. The apoptotic process is an immunologically silent event, as these apoptotic cells are cleared without activation of the immune system. There is considerable literature evidence that support the fact that PS is a …
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THE DEVELOPMENT OF SELECTIVE PHOTOSENSITIZERS TO TARGET PATHOGENIC T CELLS AND PREVENT GRAFT-VERSUS-HOST DISEASE
… (P-gp). Enhanced P-gp activity promotes the efficient removal of photosensitizer not sequestered in mitochondria, and protects resting lymphocytes that are essential for antipathogen and antitumor responses. To evaluate the selective depletion of alloimmune responses, donor C57BL/6 …
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Influence of vegetation on sediment bacterial community structure, microbial enzyme activities and phosphorus retention in constructed freshwater wetlands
… of phosphorus due to plant senescence. The net removal rate was highest for mixed culture (82% in 2008 and 77% in 2009) and C. lurida in monoculture (82% in 2008 and 80% in 2009). Vegetated mesocosms (except for monoculture of D. acuminatum) shohigher removal rate compared to unvegetated …
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The use of natural pressurised forced ventilation in plant micropropagation
… disc, this new system has proved to be 18X more efficient in removing accumulated ethylene and in keeping CO₂ and O₂ levels in culture vessels close to atmospheric.This forced ventilation system has also been shown to be very effective in the in vitro cultivation of seedlings or cuttings of …
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Poly(ethylenimine)-Functionalized Pyroxene Nanoparticles Embedded on Diatomite for Removal of Total Organic Carbon from Industrial Wastewater: Batch and Fixed-bed studies
… to overcome wastewater problems are not efficient and appropriate to maintaining the industrial effluent composition within the standard limits. Specifically, presence of dissolved organic compounds not properly eliminated during the wastewater treatment has a negative impact on human …
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Modelling, Simulation, and Optimisation of Reverse Osmosis Process with Application in Wastewater Treatment and Food Processing
… the performance of RO process in terms of removal efficiency of toxic compounds such as chlorophenol, N-nitrosamine, etc. from wastewater. The effect of several operating parameters such as feed pressure, concentration, flow rate and temperature, on the performance of RO process are …
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Modelling, Simulation, and Optimisation of Reverse Osmosis Process with Application in Wastewater Treatment and Food Processing
… the performance of RO process in terms of removal efficiency of toxic compounds such as chlorophenol, N-nitrosamine, etc. from wastewater. The effect of several operating parameters such as feed pressure, concentration, flow rate and temperature, on the performance of RO process are …
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Development of seawater electrolysis with low-cost membranes for sustainable cement production and pretreatment
… as a direct pretreatment technology for impurity removal from seawater. It demonstrates the capability to achieve an efficient removal rate of up to 99% for divalent ions. Furthermore, the removal of boron and bromide can be effectively facilitated through precise pH regulation. In conclusion, …
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Determination of actinide elements in environmental samples by ICP-MS
… available resin, namely TRU-Spec resin, for efficient removal of the matrix prior to elution of uranium and thorium analytes. Comparative analyses of reference materials and natural water samples from Plymouth and Dartmoor demonstrated significant improvement in precision and speed of …
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Development of processes using modified proteases for the reduction of felting and shrinkage of wool textiles
… dropwise addition of enzyme also allowed more efficient covalent coupling. Washing of modified Esperase with acetate and phosphate buffer followed by Tris-Triton buffer was shown to give efficient removal of unmodified enzyme. The modification of proteases in this way not only increased their …
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