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 26 for “"vmc"”.
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Integration of VMC++ into a Commercial Treatment Planning System
Recently, there has been interest to integrate VMC++ into the commercial treatment planning system at VCU as another Monte Carlo code option, since it has been shown to increase efficiency dramatically without introducing a significant amount of systematic error. Also, independent validation of …
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Patterns of Domestic Video Mediated Communication
… families' use of video mediated communication (VMC) systems and focused on determining design factors that are critical for its successful adoption. This research was conducted in three phases. Phase 1 explored families' use of a current VMC system, namely video conferencing, to uncover how and …
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An Analysis of Remote Communication Processes Involved in Video- Mediated and Text-Based Computer-Mediated Communication During Collaborative Problem Solving
… system (CMC), and a video-mediated system (VMC). The effectiveness of the medium was evaluated based on time to solution, number of turns and words in relation to a visual search task and a spatial task. Results showed a significant difference in time to solution between dyads communicating …
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Recycling Krylov Subspaces and Preconditioners
… -- for example, in the variational Monte Carlo (VMC) algorithm for electronic structure calculations -- leads to a quadratic error bound. Since one of our focus areas is sequences of dual linear systems, we introduce recycling BiCG, a BiCG method that recycles two Krylov subspaces from one pair …
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Conséquences hémodynamiques de l'application de la Ventilation Liquidienne Totale (VLT) dans un modèle expérimental de syndrome de détresse respiratoire aigue (SDRA) chez l'agneau nouveau-né
… que la Ventilation Mécanique Conventionnelle (VMC) peut par elle-même être la cause d'une agression pulmonaire appelée Ventilator-Induced lung Injury (VILI), et aggraver le pronostic vital et fonctionnel des agressions pulmonaires aigue. La recherche de méthodes alternatives d'un support …
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Improved wave functions for quantum Monte Carlo
… variational and diffusion Monte Carlo (VMC and DMC) calculations are performed for the first-row atoms and singly-positive ions. Over 98% of the correlation energy is retrieved at the VMC level and over 99% at the DMC level for all the atoms and ions. Their first ionization potentials …
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Monte Carlo methods: application to hydrogen gas and hard spheres
… types of QMC we use are Variational Monte Carlo (VMC), which evaluates integrals arising from the variational principle, and Diffusion Monte Carlo (DMC), which stochastically projects to the ground state from a trial wave function. These methods are applied to a system of boson hard spheres to get …
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A Design Framework for Qualitative Human-in-the-Loop System Development
… expert operator on the resulting system with the VMC performed over 17% better than the expert operator on the original system.
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Pairing and entanglement: quantum Monte Carlo studies
… Monte Carlo (PIMC) and variational Monte Carlo (VMC) methods. PIMC is used to model a one-dimensional system of fermionic lithium atoms according to existing experiments, including a realistic temperature. New estimators of the pair momentum distribution are implemented, yielding in a clear …
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Tunable Exchange Interaction in Coupled Quantum Dots
… by using the variational Monte Carlo (VMC) method in the presence of magnetic fields. For N = 2 electrons in double QD, the singlet Coulomb energy decreases in magnetic fields as a consequence of magnetic localization in both strongly and weakly coupled QDs. However, the triplet Coulomb …
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Tool design for the production of a collimator on a 3-axes vertical milling centre
… 65A, 3-axes CNC Vertical Milling Centre (VMC) to include turning operations'. Later, in 2002, Daka B., University of Zambia, looked at turning tools that could produce various profiles using the adaptations made on the same machine tool. After having done the modifications, it was …
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Tool design for the production of a collimator on a 3-axes vertical milling centre
… 65A, 3-axes CNC Vertical Milling Centre (VMC) to include turning operations'. Later, in 2002, Daka B., University of Zambia, looked at turning tools that could produce various profiles using the adaptations made on the same machine tool. After having done the modifications, it was …
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AB-INITIO DYNAMICS IN STRONGLY INTERACTING MANY-BODY SYSTEMS
… is the time-dependent variational Monte Carlo (t-VMC), developed by G. Carleo [1, 2]. This method builds on the basic idea of the standard variational Monte Carlo (VMC): the optimization of a variational Ansatz wave function depending on a set of parameters. While the VMC looks for the set of …
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Modification of a vertical machining centre to include turning operations : an investigation
… a 3-axes CNC Vertical Machining Centre (VMC) to include CNC turning operations. This report outlines the research activity in the Department of Mechanical Engineering - School of Engineering at University of Zambia, exploring the methodology for widening the capability of a VMC to operate …
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Crisp and Fuzzy Signal Detection Theory and Pilot Weather Judgment: Implications for VFR Flights Into IMC
… between visual meteorological conditions (VMC) and IMC. An alternative hypothesis is that pilots recognize conditions have deteriorated but are motivated by some other factor, such as pressure from passengers. The present study uses Jensen's Pilot Judgment Model and Signal Detection Theory …
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Impacts of Crop Residue and Cover Crops on Soil Hydrological Properties, Soil Water Storage and Water Use Efficiency of Soybean Crop
… increased the soil volumetric moisture content (VMC) and soil water storage (SWS) at the surface 0-5 cm depth. However, the trend was not always significant during the growing season. The CC treatment significantly impacted the soybean yield by 14% and WUE by 13% compared with NCC treatment. …
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Quantum Monte Carlo With a *Stochastic Poisson Solver
… QMC techniques like variational Monte Carlo (VMC) or diffusion Monte Carlo(DMC). We demonstrate the validity of this method by studying a simple problem, the polarization of a helium atom in the electric field of an infinite capacitor. Then we apply this method to calculate the singlet-triplet …
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Quantum monte carlo with a stochastic potential solver
… QMC techniques like variational Monte Carlo (VMC) or diffusion Monte Carlo (DMC). We demonstrate the validity of this method by studying a simple problem, the polarization of a helium atom in the electric field of an infinite capacitor. Then we apply this method to calculate the …
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Evaluating the Sensitivity of the Auckland Pavement Polishing Device and Analysis of Aggregate Microtextural Wear
… the results show that the core material volume (Vmc) is a suitable candidate to evaluate the effect of the WS device on the microtextural wear during the polishing process. The variation of the Sq, Sa, and Vmc follow a similar trend as the coefficient of friction value for specimens polished …
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High performance control of VRM circuits
… schemes used currently: Voltage Mode Control (VMC), Average Current Mode Control (ACMC), and Peak Current Mode Control (PCMC). For each control scheme, a critical inductance value, for which the convertera??s transient and steady state performance are optimized, is emphasized. Analytical …
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