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 57 for “"up/down"”.
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High Step-Up/Down Transformerless Multilevel Converter for Renewable Energy Applications
<p>This thesis focuses on a high step-up/down transformerless dc-dc modular multilevel converter (MMC) that would be applicable to dc power systems. The design achieves high voltage ratios for interfacing renewable energy sources such as photovoltaic and line interactive Uninterruptible Power …
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Nonlinear gyrokinetic simulations of intrinsic rotation in up-down asymmetric tokamaks
… strong toroidal rotation and rotation shear can suppress turbulent energy transport as well as allow violation of the Troyon [beta] limit. However, using external neutral beams to inject toroidal momentum, as is done in many current experiments, would require a prohibitive amount of energy in …
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A Comparison of Discounting Parameters Obtained Through Two Different Adjusting Procedures: Bisection and Up-Down.
… Twenty four subjects were divided in two groups and exposed to the procedures in opposite order, to account for sequence effects. Results from within subject comparisons showed no systematic differences between procedures.
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Efectos de la condición física y la adiposidad sobre indicadores de salud cardiovascular en niños y adolescentes: estudio longitudinal up&down
… and longitudinally (two-year follow-up), in a sample of Spanish children and adolescents. The results of the eight studies included indicate that body mass index (BMI) is an independent predictor of CVD risk factors, and a mediator in the association of CRF (Study I) and MF (Study II) …
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Physical activity, sedentary behaviour, physical fitness and inflammatory biomarkers in children and adolescents
… studies were conducted from data gathered in the UP&DOWN study. Study I was conducted in a population of 481 participants (229 children; 252 adolescents) from the UP&DOWN study. Study II was performed with 503 participants (230 children; 273 adolescents) from the UP&DOWN study. In the study III …
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Can traditional Japanese companies reinvigorate middle managers to improve their competitive advantages in a world of uncertainty?
… This is what Nonaka and Takeuchi call “middle up-down management” in The Knowledge-Creating Company: How Japanese Companies Create the Dynamics of Innovation. Unfortunately, many middle managers, who used to be the engine driving innovation, have been struggling with middle up-down management …
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Variable dwell time verification strategies for CDMA acquisition with application to GPS signals
… on the optimisation of coincidence detector and up-down counter strategies. A novel up-down counter strategy is presented and shown to reduce the mean dwell time relative to that of the traditional ‘Tong’ detector. The impact of unknown power levels and other environmental effects is investigated …
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Extraction of Polarised Quark Distributions of the Nucleon from Deep Inelastic Scattering at the HERMES Experiment
… laser light. <br>Emphasis is laid on the setup and performance of the laser <br>optical system of the so-called 'Longitudinal Polarimeter'. <br> <br>In the second part of this thesis, polarised quark distributions <br>for up-, down-, and sea-quarks are extracted from the analysis <br>of semi …
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Counting with convolutional neural networks
… on a black background, oriented right-side up, down, left or right. We train a network to count the right-side up triangles; specifically, we see this as a closed-set classification problem where the class is the number of right-side up triangles in the image. These evaluations show that our …
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The nutritive, rheological and sensory quality of selected indigenous complementary foods used for 6 – 24 months infants and young children in African communities
… (TCATA) panel (n = 10). A simulated OP method (Up-Down mouth movements- munching) and a control method (lateral mouth movements- normal adult-like rotary chewing) were used. Energy densities of the flour were calculated from proximate analysis data using Atwater factors, and the solids (%) at …
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Condensed Buck-Boost Switched Capacitor Converter for Efficient Voltage Distribution in Electrified Aircraft
… where the advantages of its ability to step up/down voltage in an efficient and lightweight fashion can be fully realized. In order to be implemented in hardware for the first time, this work utilize new monolithic, bidirectional GaN FETs, whose reverse voltage blocking capabilities open new …
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Experimental tests of parallel impurity transport theory in Tokamak plasmas
… surface average, I 2/(n ) , have been measured up to ~ 1/3, and separate cases of impurities accumulating on the inhoard and outboard side of a flux surface are observed, depending on local plasmas conditions. Experiments demonstrate that these asymmetries are due to a combination of inertia., …
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Adaptive turn-prohibition routing algorithm for the networks of workstations
… networks using different routing schemes, like up/down routing algorithm used in Myrinet switches. However, most of existing approaches for deadlock-free routing either try to eliminate any possibility of deadlock occurrence, which can result in putting extra restrictions on the routing in the …
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Large-Scale Simulations for Complex Adaptive Systems with Application to Biological Domains
… systems that cannot be simply scaled up/down. However, they are self-organized, in the sense that they can evolve into specific structures/patterns without guidance from outside sources. Modeling/Simulating CASs is challenging, not only because of the high complexity, but also because …
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The Utility of a Theoretical Framework of a Culture of Leadership
… a dynamic school culture that infuses leadership up, down, and throughout the membership of the school learning community with students as a central figure. The Culture of Leadership Framework emerged from an extensive review of the literature and includes four distinct dimensions (indicators) …
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A Game-theoretic Framework to Investigate Conditions for Cooperation between Wind Power Producers and Energy Storage Operators
… like energy imbalance penalties, efficiency of up/down regulation, and electricity market prices is studied and necessary conditions for cooperation are presented.
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Ground stone lithic technology of the Indian Peaks, Colorado, USA
… of ground stone tools (chapter 4) is centered upon answering two primary research questions catered towards understanding the function and technological organization of the high altitude ground stone toolkit. Firstly, the idea that handstones were technologically flexible in function is tested …
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New hydrogen bonding motifs for anion and neutral guest complexation
… exhibited either an up-down or up-up conformation in DMSO solution and the solid state, depending on the type and concentration of anion. Two different crystal structures with sulfate revealed formation of both the conformations.<br/>The properties of a simple …
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Color superconducting phase of cold dense quark matter
We investigate color superconducting phases of cold quark matter at densities relevant for the interiors of compact stars. At these densities, electrically neutral and weak-equilibrated quark matter can have unequal numbers of up, down, and strange quarks. The QCD interaction favors Cooper pairs …
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