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 32 for “"semi-closed"”.
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Closed/Semi-Closed Form Solutions for Face/Core Debonds in Sandwich Beams
Sandwich beams are highly susceptible to debonding at the interface between face and core. These debonds can grow and eventually lead to complete failure of the structure. To understand and study such debonds analytically, an Elastic Foundation Analysis (EFA) can be used to incorporate the effects …
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Multi-antenna relay network beamforming design for multiuser peer-to-peer communications.
… a sequence of transformations, we obtain a semi-closed form solution which can be determined by solving an efficient semi-definite programming problem. We also consider the semi-definite relaxation (SDR) approach. Compared with this SDR approach, the proposed solution has significantly lower …
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Power-optimal MIMO two-way relay networks
… and asynchronous networks are amenable to semi-closed-form solutions. Considering asynchronous networks, we prove rigorously that at the optimum, only those relays corresponding to the power-optimal synchronous sub-network of relays must contribute to the data exchange between transceivers. …
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Primary Systems and Voter Turnout: Measuring the Institutional Effect of Primary Type on Voter Turnout
… election. The five types of primary systems (closed, semi-closed, semiopen, open and blanket) are explained as well as traditional factors for likelihood of voting. It is hypothesized that the more closed the primary system, the less likely a person is to vote. Data analysis shows that when …
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Influences on the hydrology of the Cape Columbine/St. Helena region
… by meteorological conditions, but within the semi-closed system of the Bay itself a longer time span of around 25 days governs the processes in this separate but inextricably linked water body.
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Vývoj a trend popularity surfování v České republice
… application. The questionnaire included mainly closed questions, but also semi-closed questions and open questions. A total of 284 relevant polls were collected. Methods of induction, deduction, analysis and synthesis were used in this work as well. Results The results of the research shows the …
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Metabolismus und Verhalten definierter Nonylphenolisomere in Belebtschlamm
… and [14C(U)]-4-n-NP in semi-closed systems was determined. In this experiments the Isomer with the linear alkyl side chain was degraded aproximately ten times faster than the branched isomer. Additional great diffrences of the rate of mineralization and the …
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Coordinated multicast beamforming for multi-cell massive MIMO systems
… in the optimal beamforming solution via semi-definite relaxtion (SDR) or successive concex approximation (SCA). To further design a fast algorithm applicable to massive MIMO systems, we apply the alternating direction method of multipliers (ADMM) technique and propose an ADMM-based …
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(Mis)communicating postsecondary opportunities through diploma policies: A content analysis of Louisiana public high school websites
… Pathway Students and Limited Flexibility (Semi-Closed) Curriculum System. These themes and their respective subthemes revealed that high school websites contained inconsistent and incomplete information about graduation pathways that constrains students' postsecondary options. Findings from …
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Patterns of antimicrobial resistance among enteric bacteria found in multi-site group-level cohorts of humans and swine
… faecium (EF) isolated from humans and swine in a semi-closed, integrated farrow-to-fork population were evaluated in a crosssectional study. Our objective was to establish baseline antimicrobial resistance patterns and to evaluate the stability of isolate recovery phenotype within multiple grab …
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Power efficient designs for 5G wireless networks
… to sum-rate constraints. We propose an optimal semi-closed form solution to this problem and we show that at the optimum, the end-to-end channel has only one non-zero tap. To extend the first work to high data-rate scenarios, we consider a second relaying-based network which consists of two …
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Sum-rate optimal network beamforming and power allocation for single-carrier asynchronous bidirectional relay network
… values of the transceivers’ transmit powers in a semi-closed form.
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Diabetes Mellitus Glucose Prediction by Linear and Bayesian Ensemble Modeling
… costs, different technical solutions, based on closed or semi-closed loop blood glucose control, have been suggested. To this end, this thesis investigates simplified linear and merged models of glucose dynamics for the purpose of short-term prediction, developed within the EU FP7 DIAdvisor …
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New phosphorescence based probes and techniques for the analysis of cellular oxygen and respiration
… conditions was developed. The design of semi-closed channels allowed cell treatments, multiplexing with other assays and two-fold higher sensitivity to compare with microtiter plate. We compared three common OCR platforms: hermetically sealed quartz cuvettes for absolute OCRs, partially …
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Intercultural Relation Between Sports and E-sports: Opening a Gateway for Sports Education /
… The main method of data collection was a semi-closed online survey where research relevant topic were covered. While seeking to carry out the set objectives content analysis and interviews were employed for cultural analysis of e-sports, the collected information alongside sports education …
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DESIGN OF AN EFFICIENT AND RAPID CHEMICAL VAPOR INFILTRATION (CVI) RE-CIRCULATION SYSTEM
… gases through a separate in-situ isobaric semi-closed loop circuit which also allows for more carbon to be deposited per liter of virgin precursor gas in the reaction zone. An electric potential is also applied to compare the effect on carbon deposition to standard techniques. …
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Vaiko teisė į mokslą ir aplinkos veiksniai, sąlygojantys nenorą mokytis /
… performed by questionnaire survey method. Two semi-closed-type questionnaires were prepared for students and schoolteachers. They include: 1) the demographic cluster, 2) a block of questions designed to explore the factors leading to students’ intention/reluctance to learn, 3) unit designed to …
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Palladium Catalyzed Hydrodechlorination of 4-Chloroanisole in Phosphonium Ionic Liquids
… some PCBs are still in service—albeit, in closed or semi-closed systems such as dielectric fluids for transformers and capacitors, or are still present in the environment. The continued presence of PCBs is problematic, due to their toxicity. Their hydrophobic nature and resistance towards …
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Robust multi-group multicast beamforming design and antenna selection for massive MIMO systems
… tackle the non-convex problem, where we obtain closed-form or semi-closed-form solutions to each subproblem. Simulation results show that our proposed algorithm provides a favorable performance compared with existing alternative methods with considerable computational complexity reduction. In …
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Highly efficient pricing of exotic derivatives under mean-reversion, jumps and stochastic volatility
… finding a robust methodology that could derive closed-form solutions for exotic derivatives remains a difficult challenge. In addition, the level of sophistication is greatly enhanced when options are priced in a more realistic framework. This includes, but not limited to, utilising …
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