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 106 for “"k-e"”.
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The Phenomenology of Moral Agency in the Ethics of K. E. Logstrup
Many philosophers hold that moral agency is defined by an agent’s capacity for rational reflection and self-governance. It is only through the exercise of such capacities, these philosophers contend, that one’s actions can be judged to be of distinctively moral value. The moral phenomenology of the …
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K E E P E R : online conversation support scaffolding modeled after ancient and modern social technologies
Emergence, when an entity is observed to have properties its parts do not have on their own, is an awe inducing phenomenon seen within nature, complex organization theory, physics, art, and philosophy. Humans can experience emergence or interdependence, a perhaps less potent version of emergence, …
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A numerical simulation of two-dimensional separated flow in a symmetric open-channel expansion using the depth-integrated two-equation (K-E) turbulence closure model
Many of the free surface flow problems encountered by hydraulic engineers can be suitably analyzed by means of the depth-integrated equations of motion. A consequence of adopting a depth-integrated modeling approach is that closure approximations must be implemented to represent the so-called …
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THE CELL CYCLE GENES REGULATION OF IPS CELLS AND THE ROLE OF SWI/SNF CHROMATIN REMODELING ENZYMES DURING THEM DIFFERENTIATION
Lo stato di cellula pluripotente può essere raggiunto con l'espressione ectopica di alcuni fattori di trascrizione che possono riprogrammare le cellule somatiche. (Takahashi, K., e Yamanaka, S., 2006; Takahashi, K., e Yamanaka, S., 2007).
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Rapid Measurement and Estimation of Saturated Hydraulic Conductivity of Mineral Slurries
Large strain consolidation (LSC) behaviour of mineral slurries regulates the performance of tailings management and reclamation plans. The hydraulic conductivity-void ratio relationship primarily influences this behaviour, dominating the long-term performance of fine-grained slurries with higher …
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New turbulence models for indoor airflow simulation
It is important to predict indoor environment in order to design thermally comfortable and healthy indoor spaces. Heating, Ventilating and Air Conditioning (HVAC) design engineers and architects widely use the Computational Fluid Dynamics (CFD) technique for indoor environment predictions. The CFD …
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The optimization of graphene sensing layer against Escherichia coli
In the last decade, biosensor have been developed to detect E. coli. The system is complex with a receptor detecting specific target and producing a signal transducer to be a readout data. Previous E. coli sensors lacked selectivity, that potentially could detect other bacteria. In order to rectify …
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Efeito da vitamina K da dieta na anticoagulação oral crônica : evidências prospectivas observacionais e randomizadas
Base Teórica. Embora vários relatos de casos tenham sugerido uma associação entre a ingesta de vitamina K e a instabilidade da anticoagulação oral, o impacto clínico de diferentes quantidades de vitamina K dietética na anticoagulação oral crônica nunca foi prospectivamente estabelecido. Métodos. …
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Numerical methods for the unsteady incompressible Navier-Stokes equations and their application to the Direct Numerical Simulation of turbulent flows
Two new methods for the efficient parallel computation of the unsteady incompressible Navier-Stokes equations are presented. Such efficient methods are desired for large scale parallel computations of unsteady turbulent flows such as Direct Numerical Simulations (DNS). The performance of the new …
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Biochemical and antibiogram characteristics of certain enterobacteriaceae
This study is a continuation of the investigations of Hall (1976), Storey (1977), and Berkowitz (1978) on antimicrobial susceptibility patterns of bacteria isolated from local hospitals in Stockton, California. It extends the work of Hall (1976) on the K-E-S group to include three species of …
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Estudo do calor específico de compostos Heusler paramagnéticos, da série do níquel Ni 2 Tal, onde T=Ti, Zr, Hf, V, Nb e Ta
Neste trabalho apresentamos os resultados experimentais da medida do calor específico dos compostos Heusler da série Ni2TA1, onde T =Ti, Zr,Hf,V,Nb, Ta. Estas medidas foram feitas utilizando-se um calorímetro adiabático que atua na faixa de 1,84 K a 10,3 K e visaram o estudo da estrutura elêtrônica …
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Computational modelling of vortex shedding flows
This study describes the development and application of a two--<:limensional CFD method for vortex shedding flows past square and circular cylinders. The overall approach can be regarded as a compromise between the accuracy and computational costs, especially for high-Reynolds number flows. The …
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Étude des relations entre les intérêts vocationnels non-professionnels, les besoins vocationnels et le niveau de l'intelligence d'une population mâle de neuvième année
« Cette recherche se propose d'étudier les relations entre les intérêts vocationnels non-professionnels tels que définis par les échelles du Minnesota Vocational Interest Inventory (MVII) de K. E. Clark et D. P. Campbell (1965) (voir appendice 1) et les besoins vocationnels tels que définis par les …
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Unstructured mesh - finite volume algorithms for swirling, turbulent, reacting flows
The work presented in this thesis develops techniques, employing the Finite Volume discretisation method, which allow the numerical simulation of three dimensional heat transfer and fluid flow problems using unstructured meshes. The method solves and stores all variables at the element centres …
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An Investigation of Cooling Configurations in Gas Turbine Engines Using Jet Impingement
<p>A numerical investigation for predicting the heat transfer effects of turbulence was conducted by making a scaled-up model of a section in a jet impingement channel. Different turbulence models were run and the results were compared to experimental data. Experimental comparisons were made for …
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Existência de soluções positivas para duas classes de sistemas elípticos singulares
Neste trabalho estudamos a existência de solução fraca para sistemas elípticos singulares da forma: A , + T( ) e Q —Au=—————— X,U,U m Ha u,v) nm , —Av=>——— + K e Q, v Sr, u,0) + K(x,u,v) m uv >0 em O, u=v=0 sobre OQ, onde 2 Cc R” é um domínio limitado e suave, n>2e H,K,T,S são funções contínuas, …
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Extracting the K best solutions from a valued and-or acyclic graph
In this thesis, we are interested in solving a problem that arises in model-based programming, specifically in the estimation of the state a system described by a probabilistic model. Some model-based estimators, such as the MEXEC algorithm and the DNNF-based Belief State Estimation algorithm, use …
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Active Drag Reduction of Ground Vehicles Using Air-Jet Wheel Deflectors
<p>Seven turbulence models were used to simulate the flow within the wheelhouse of a simplified vehicle body. The performance of each model was evaluated by comparing the aerodynamic coefficients obtained using computational fluid dynamics (CFD) to data collected from wind tunnel experiments. The …
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Development and application of low Reynolds number turbulence models for air-cooled electronics
Semiconductors are at the heart of electronic devices such as computers, mobile phones, avionics systems, telecommunication racks, etc. Power dissipation from semiconductor devices is continuing to increase due to the growth in the number of transistors on the silicon chip as predicted by Moore's …
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A numerical study into the effects of turbulent flows around full-scale buildings
This thesis describes the development and application of a numerical predictive procedure for turbulent flows around full-scale buildings. Two different turbulence models were considered: a complete Reynolds stress model with two alternative proposals for the pressure-strain correlations and a k-E …
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