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 72 for “"stage approach"”.
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High Frequency, High Efficiency Two-Stage Approach for Future Microprocessors
… when compared with 5V-input VR efficiency. Two-stage approach is proposed in this dissertation to solve this issue. The analysis shows that the two-stage conversion has much better high frequency capability than the conventional single stage VRs. Based on today's commercial devices, 2-MHz is …
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The role of strategy in the innovation process: A stage approach.
… field have divided the innovation process into stages in an attempt to understand the innovation process and the factors that affect it. However, empirical studies that examine the relationship between the stages are scarce. In addition, although business strategy is emphasized as an important …
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The motivational determinants of exercise involvement: A social psychological process/stage approach
… research is the overuse of a product oriented approach, which assumes that stable characteristics of the person or situation can predict exercise behavior. This type of research approach has contributed little to the understanding of the motivational process by which individuals initiate, adapt …
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Filtering and refinement: a two-stage approach for efficient and effective anomaly detection
… instances. A recently proposed, sampling-based approach may substantially boost the efficiency in anomaly detection but may lead to weaker accuracy and robustness. In this study, we propose a two-stage approach to find anomalies in complex datasets with high accuracy as well as low time …
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Microbial valorization of C1 waste gases for 2,3-butanediol production: a single and a double stage approach
L'abstract è presente nell'allegato / the abstract is in the attachment
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Modeling Strategies for Large Dimensional Vector Autoregressions
… white noise covariance matrix. We propose a 2-stage approach for fitting large dimensional VAR models where many of the AR coefficients are zero. The first stage provides initial selection of non-zero AR coefficients by taking advantage of the properties of partial spectral coherence (PSC) in …
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Novel DC/DC Converters For High-Power Distributed Power Systems
… traditional front-end converter based on the two-stage approach for high-power three-phase DPSs, the DC-link voltage coming from the power factor correction (PFC) stage penalizes the second-stage DC/DC converter. This DC/DC converter not only has to meet the characteristics demanded by the load, …
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Edge-Preserving Image Upsampling and Image Warping
… on the original image plane, we propose a two-stage approach to painterly rendering of photographs, where the image plane is first warped to produce a distorted or caricatured effect and then the resulting image is rendered with a painterly effect. This work on image warping is published in …
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Use of SIMO Converstion for Optimizing LED Light Drivers
… LED lighting to combine the low cost of single-stage converters with the energy saving capability of a two-stage, multiple string solution. This paper describes the modeling, analysis, design, and testing of a Multiple Independently Regulated Output Flyback (MIROF) converter, used in LED …
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The Generalized Linear Mixed Model for Finite Normal Mixtures with Application to Tendon Fibrilogenesis Data
… on all clustering levels, the standard-two-stage approach (Chervoneva et al., 2011, co-authored) and a robust joint estimation. Our research was motivated by the data obtained from the tendon fibril experiment reported in Zhang et al. (2006). Our statistical methodology is quite general and …
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Novel approach to laser-driven multi-stage ion acceleration
All-optical approaches to particle acceleration are currently attracting a significant research effort internationally. Key to the interest in a laser based particle accelerator lies in its cost effective and compactness. However, the ion beams accelerated by the laser-driven mechanisms have …
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Parametric Resampling Methods for Retrospective Changepoint Analysis
… changepoint problem is addressed by a two-stage approach beginning with dimension reduction via principal component analysis (PCA). After the dimension reduction step the location of the changepoint in principal component space is estimated and assuming at most one change in a mean-shift …
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Engineering Drawing Segmentation and Understanding For Building Construction Digital Twins
… structural components and employs a multi-stage approach for detecting and removing annotation arrows along with annotations, which commonly obscure MEP components. A sequence of morphological filtering and geometric analysis enables robust annotation arrows detection and removal, producing …
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A methodology for the design of cellular manufacturing systems
<p>“A methodology that provides a systematic approach to the design of Cellular Manufacturing Systems (CMS) is developed. The states in the system design process are established, methods and tools to be used for each stage are identified, and transition criteria for progressing from one state to …
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Anthropomorphic Model for Medical Image Quality Assessment
… visual search frameworks and employs a two-stage approach: candidate selection and decision-making. Thresholding during the candidate selection stage dynamically refines regions of interest, while stage-specific feature usage in the decision-making stage optimizes diagnostic accuracy. These …
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Theoretical and Empirical Contributions to Monetary Policy Analysis
… around a non efficient steady state. Using a two-stage approach developed by Levine, McAdam, and Pearlman (2007), I show that in the presence of backward looking firms, the central planner improves social welfare when it allows for a steady state rate of inflation marginally above zero. In the …
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A Neural Network-Based Methodology for Generating Spectrum -Compatible Earthquake Accelerograms
… spectra to earthquake accelerograms. A two-stage approach is used. In the first stage, a replicator neural network is used as a data compression tool. The replicator neural network compresses the vector of the discrete Fourier spectra of the accelerograms to vectors of much smaller …
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Understanding self-care perceptions and behaviours of community care workers in Cape Town to develop and assess a self-care intervention
… communities they serve. This study used a multi-stage approach, with an interpretivist and constructivist qualitative lens, to explore the self-care needs of CCWs, develop a self-care intervention, and test the feasibility of this intervention. Community-based participatory research (CBPR) …
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Three-Phase Power Factor Correction Circuits for Low-Cost Distributed Power Systems
… front-end converters are implemented using a two-stage approach, which consists of a PFC stage followed by a DC/DC converter. The purpose of the front-end converter is to regulate the DC output voltage, supply all the load converters connected to the distributed bus, guarantee current sharing, and …
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Bayesian D-Optimal Design for Generalized Linear Models
… design is introduced and the Bayesian two-stage D-optimal design approach is developed for generalized linear models. With the incorporation of the first stage data information into the second stage, the two-stage design procedure can improve the design efficiency and produce more accurate …
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