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 116 for “"critical parameters"”.
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Evaluation of the critical parameters and polymeric coat performance in compressed multiparticulate systems
… Coated pellets were compressed and key process parameters were evaluated. The obtained results revealed that the coating thickness has a significant effect on the release profile of the final products. It was found that by increasing the coating film thickness, the percentage released decreased. …
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Developing Heuristic Evaluation Methods for Large Screen Information Exhibits Based on Critical Parameters
… through a structured process that relies upon critical parameters associated with the notification systems design space. By inspecting example systems, performing claims analysis, categorizing claims, extracting design knowledge, and finally synthesizing heuristics; we have created a usable set …
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Supporting Requirements Reuse in a User-centric Design Framework through Task Modeling and Critical Parameters
… in the design process, using attributes like critical parameters, enables designers to properly assess software success. While critical parameters alone do not have the potential to drive design, establishing requirements tied to critical parameters helps designers capture design objectives. …
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User-Centered Critical Parameters for Design Specification, Evaluation, and Reuse: Modeling Goals and Effects of Notification Systems
… systems research based on a core taxonomy of critical parameters describing user goals. Next, we extend the framework, focusing on three key aspects: 1) a system description process, allowing articulation of abstract design objectives that focus on critical user requirements; 2) interface …
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Capacitor-Probe Calibration and Optimization for NDE Application to Portland Cement Concrete
… the bulk dielectric constant of PCC with its critical parameters (cement, aggregate, and air content). Five calibration methods have been developed and evaluated for the C-Probe to measure the dielectric properties of PCC. This evaluation has demonstrated that open, short, Teflon material …
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Robot system characterization: error modeling, identification, analysis, and minimization
… analyze, and minimize errors in robot geometric parameters. Throughout this work, the geometric parameters that describe the kinematics of a given robot are treated as unknowns. The robot characterization process involves finding the optimal values of these parameters to best fit a set of …
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Thermoplastic prepreg manufacture by solution impregnation
… of this investigation were to identify the critical parameters in impregnation of the fiber tow by a thermoplastic solution, and to produce high quality thermoplastic prepreg. Continuous carbon fibers (AS4 and AU4) were impregnated with a thermoplastic resin solution using a research scale, …
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Computer Modeling and Simulation of Power Electronics Systems for Stability Analysis
… First, the safe values of the main system parameters are defined from the view of the stability of the complete system. Then, these different critical parameters of the system are mapped together to predict their influence on the system. The large signal stability is examined through the …
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Molecular Modeling Of Energetic Materials And Chemical Warfare Agents
… coefficiens, Henry's law constant and also critical parameters, vapor pressure, boiling point, lattice parameters, crystal density and melting point. For chemical warfare agents, the developed force fields are used to determine their phase coexistence properties, vapor pressures, critical …
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Physical and practical limits of a biomolecular control system using nanoparticles and electromagnetic field irradiation
… surface chemistry. The operating window for the critical parameters governing release including NP properties and laser fluence is defined. The thesis also reports on transmission pump-probe experiments that show the thermal interface conductance (G) of NPs is critical to nanoscale thermal …
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Non-Contact Lap Splices in Geometrically Dissimilar Bridge Column to Drilled Shaft Connections
… were tested to investigate the effects of the critical parameters affecting the performance of non-contact lap splices: the non-contact distance between the spliced bars, the lap splice length and the amount of transverse reinforcement in the non-contact lap splice zone. The specimens were …
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Surfactant instabilities on thin films
… present experimental results which identify the critical parameters that govern the shape and extend of the fingering phenomena. It was found that the normalized wavelength, [lambda]/t, scales with Marangoni number, Ma=[Delta][gamma]t/[mu]D, to the -1 exponent for any Marangoni higher than 4.3 · …
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An Improved Approach to Fault Tolerant Redundant Fiber Optic Ring Design for Polled Data Networks
… are compared. In polled networks one of the most critical parameters is the time required to interrogate all of the nodes in the network. This parameter, called the poll time, is compared for the two solutions under various operating conditions, including the instances when the ring is intact and …
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Raman and SERS studies of filamentous fungi
… of Aspergillus nidulans (A. nidulans) cell. Critical parameters including pH, temperature and metal concentration affect the sizes and shapes of the NPs. For better control of NP formation (size, shape and location), pre-formed NP were incubated with A. nidulans colonies. Aspergillus nidulans …
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On-chip multi-dimensional biomolecule separation using multi-layer microfabricated valves
… independent 2D separation were performed, and critical parameters for better chip performance were identified; including channel passivation, electroosmosis control, IEF linearity control, and detection enhancement. The result can be used for the filtration of high-abundance proteins, which …
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Dynamics and Control of Very High Altitude Tethered Balloons
… of the system’s equilibrium are considered the critical parameters that are used to quantify the system’s response, as these are considered the primary risks of failure. The use of optimal control methods to minimise these is proposed and introduced into the dynamic simulations. Previous methods …
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Experiments Towards the Realization of a Nanofiber Guided Dipole Trap
… a Rubidium 87 MOT and characterizing its critical parameters; Realizing some atom-light interface through an experiment on coupling spontaneously emitted photons from MOT into TNF; Calculating two-color dipole trap parameters for our nanofiber.
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Over-expression in Escherichia coli of the ToxA51 llama single domain antibody targeting Clostridium difficile enterotoxin A
… In this study, we investigated various parameters affecting the expression of the ToxA5.1 sdAb in E. coli TG1 and optimization of culture conditions revealed that temperature and medium buffering are critical parameters affecting small-scale expression of this recombinant protein. …
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Experimental Characterization of Heat Transfer and Fluid Flow in TCR Fuel Elements under Varying Operational Conditions
… psi and temperatures spanning 100°C to 300°C. Critical parameters, including inlet and outlet gas temperatures, wall temperatures at both ends of the core, and coolant flow rates were monitored to evaluate thermal performance and system reliability. Findings indicate that elevated pressures …
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