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 35 for “"Optimal structure"”.
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Optimal structure of US power transmission system for targeted investments
… Electrical Power Industry and its impact on the structure of Transmission System. The results of introducing competition in generation and creating wholesale market for electricity are evaluated. The problems in the U.S. Electrical Transmission System are identified; existing pricing models and …
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Optimal structure and efficient algorithm for max-min fair multi-group multicast beamforming
… subject to transmit power limit. We obtain the optimal multicast beamforming solution structure for an arbitrary system configuration. We show that the optimal MMF solution has a weighted minimum mean square error (MMSE) filter structure and a similar structure to that of the quality-of-service …
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Optimal capacity adjustment for supply chain control
… research is to analytically determine simple structures to adjust capacity that require minimal computational resources and are relatively easy to implement. The research focuses on manufacturing companies that operate a make-to-order environment in which there is no inventory of finished …
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Precoder Design for Cooperative Cognitive Radio Systems
… communication in recent years. In this thesis, optimal transmission strategies at the source and relay nodes in cooperative underlay CR systems assumption are studied with an aim of achieving maximum possible throughput for the secondary system for two different scenarios: one with multiple …
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Advanced tools for RNA secondary structure analysis
The analysis of RNA secondary structure has become more and more important throughout the last decades after it was recognised that RNA does not only serve as a passive messenger (mRNA), but also as a functional compound of the cell. Furthermore, it was elucidated that mainly the structure rather …
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Investigation of bone response to implant materials by electron microscopy and computer simulation
… width as the optimization variable, an optimal structure with minimum SED was achieved. This structure is similar to real bone in the dense outside, porous inside, and orientation of the trabeculae. The bone density distribution pattern also matched with previous result by other people. …
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ANALYSIS AND DESIGN OF PERIODICALLY TIME-VARYING DIGITAL FILTERS
… with a periodically time-varying system and an optimal design procedure was developed. New criteria for designing the filters with decimator-interpolator structures were derived. With these new design criteria more efficient filters were designed. When these techniques were applied to filters …
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Coordinated multicast beamforming for multi-cell massive MIMO systems
… the base station transmit power, we obtain the optimal multicast beamforming solution structure. Utilizing the optimal structure to reduce the computational complexity, we propose to determine the parameters in the optimal beamforming solution via semi-definite relaxtion (SDR) or successive …
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Towards Morphology-Agnostic Control for Soft Robots
… humans and machines. However, determining the optimal structure of a soft robot for a given task is difficult and complicated by the fact that soft robots have a design-dependent control profile. Thus, existing approaches have relied on human intuition or biomimicry. Co-design has been …
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Development of a Variable Camber Compliant Aircraft Tail using Structural Optimization
… that for a large range of lift coefficients, the optimal airplane configuration changes to minimize the drag. Another portion of this research deals with the development of a structural optimization program to design a variable camber compliant tail. The program integrates ANSYS, aerodynamic thin …
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DESIGN, SIMULATION AND OPTIMIZATION OF HIGH Q RF SPIRAL INDUCTORS ON SILICON CHIPS
… inductors optimization. We finally find the optimal structure of n4w6s2t75th6 for the thick Cu inductors, which can improve the Q factor by 40% or so. The guide of optimizing 6 µm thick Cu spiral inductors is also given in detail in our project. At the meanwhile, we propose an equivalent …
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Generation and Optimization of Quadrilateral and Hexahedral Meshes
Structured quadrilateral (quad) meshes are preferred in many engineering and medical applications due to their desired numerical properties. Despite the extensive research, automatic generation of quad- and hex- meshes with optimal structure remains a challenge. In-lieu-of generating a quad-mesh …
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I. Radical Cyclizations Mediated by Transition Metal Hydrides II. Study toward the Total Synthesis of Pluraflavin A III. Cytoprotective Polyacetylenes Inspired by Panaxytriol
… the Nrf2 cell-signaling pathway. The resulting structure-activity relationship suggested that the diyne and propargylic hydroxyl functionalities are necessary for phase II enzyme induction. While we have not yet necessarily attained the optimal structure for Nrf2 induction without accompanying …
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Consumerism: management challenge of consumer protection in national enterprises
… for consumer protection, we did not observe any optimal structure. However, we did observe that the differing approaches that management can adopt can be classified and appraised in relation to four variables. These variables are, (i) Sensitivity (pro-active/reactive), (ii) Definition …
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Public sector facility management at military unit level: an exploratory study
… career development, budgets and structures as identified by FM practitioners. The Department of Defence (DOD) needs to define and communicate FM; structure FM down to unit level; staff structures; train, educate, and promote FM practitioners as FM professionals; and fund FM …
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Topology Optimization Using Load Path and Homogenization
… for determining load paths in two dimensional structures, plates and shells are introduced. In the two-dimensional space, there are two load paths with their total derivative equal to the transferred load, their partial derivatives related to stress tensor, and satisfying equilibrium. In the …
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Unique approaches towards the synthesis of polycyclic sesquiterpene targets
… a spectrum of standard protocols, to identify an optimal structure to facilitate this key organometallic annulation. Upon completion of this optimisation programme, a range of synthetic strategies were explored towards the completion of the desired natural target. Significant progress towards this …
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The impact of different dietary patterns on nutritional status and metabolic integrity in asymptomatic people living with HIV infection in South Africa
Adequate nutritional status promotes optimal structure and function. In PLWH, few studies on the impact of dietary intake on nutritional and metabolic status have been undertaken. This cross-sectional secondary data analysis examined how different dietary patterns influenced nutritional and …
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XML documents schema design
… Definition (XSD) for defining the syntax and structure of XML documents. To enable efficient usage of XML documents in any application in large scale electronic environment, it is necessary to avoid data redundancies and update anomalies. Redundancy and anomalies in XML documents can lead not …
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Markdown sharing policies as trade incentives in uncertain markets
… addresses the above problem by examining the optimal structure of the manufacturer's markdown sharing policy which maximizes the manufacturer's expected utility of profit in an uncertain market. In particular, this research evaluates three commonly used markdown sharing policies by …
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