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 18 of 18 for “"Efficient structures"”.
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Task management driven simulation of grid applications using SimGrid
… in a grid environment there is neither an efficient task management scheme nor any efficient structures to support the execution of large complex applications. This thesis proposes a simulation model that integrates a task management scheme and the libraries provided by SimGrid simulation …
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Houses for Dorchester
… in a way that makes variety and choice more efficient, structures participation and encourages decentralized independent action through time. The form of this environment is first presented through drawings and text. A discussion of the meaning of variety, control and levels in form and …
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Design and optimization of lightweight space telescope structures
… will be placed on designing lightweight, efficient structures in order to reduce structural mass and minimize launch costs. This thesis discusses several issues related to the design of lightweight space telescopes. Three topics are presented. The first topic deals with the design of a …
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Multi-Objective optimization of arch bridges
… are commonly used to attain big spans. They are efficient structures that offer a wide range of geometries, materials, and topologies. This thesis studies the influence of the geometry and topology of arch bridges on both their structural performance relayed by the maximum deflection and their …
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Designing for forces : an early-stage design program for axial-force structures
Structures that carry most of their load through the axial forces of tension or compression are more materially efficient than standard structures. However, they are not as straightforward to design since the forces in the structure depend on shape. The traditional method of form finding for such …
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Minimizing embodied carbon in multi-material structural optimization of planar trusses
… is a growing emphasis on sustainable, energy efficient design that reduces carbon emissions. However, until recently, most efforts have focused only on reducing operational carbon [1]. As a result, the carbon embodied in construction materials, especially in a building's structural system, is …
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Integration of Zip-formwork and conventional formwork systems for shape-optimized concrete in large scale construction
… construction using less material to create efficient structures that meet structural demands. Although extensive research and development has focused on applying shape optimization to prismatic concrete beams, these beams are often limited by the constraints of available formwork and are …
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The Effect of Green Insulation Standards on Moisture Accumulation within Framing of Residential Structures
… Building Standard, emphasize creating energy efficient structures to limit negative impact on the environment. Green building practices employed to increase energy efficiency of the building enclosure may overlook possible adverse effects that these practices may have on structural durability. …
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Perfect Reconstruction Filter Bank Structure Based On Interpolated FIR Filters
State of the art filter bank structures achieve practically perfect reconstruction with very high computational efficiency. However, the increase in computational requirements due to the need to process increasingly wider band signals is paramount. New filter bank structures that provide extra …
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The structural behaviour of horizontally curved prestressed concrete box girder bridges
Bridges are important and efficient structures which are comprised of a number of elements andsubstructures, namely the deck, abutment and foundation and possibly additional intermediatesupports. Recently the horizontally curved box girder bridge has become more desirable inmodern motorway systems …
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Form-finding of elastic gridshells
… around the world. Yet, gridshells are extremely efficient structures. They can cover long spans with low self-weight and allow for a variety of aesthetical shapes. Elastic gridshells present the additional advantage of being simple and rapid to construct. Despite these outstanding qualities, …
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Compression After Impact Experiments and Analysis on Honeycomb Core Sandwich Panels with Thin Facesheets
… of the effect of impact damage on composite structures is necessary to give the engineer an ability to design safe, efficient structures. Current composite structures suffer severe strength reduction under compressive loading conditions, due to even light damage, such as from low velocity …
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Electrically-Small Antenna Performance Enhancement for Near-Field Detuning Environments
… characterizing radiation properties of antenna structures that are fractions of the radiansphere. Current state-of-the-art wideband small antennas near kaH1 have achieved multiple-octave impedance bandwidths when utilizing volume-efficient designs. Significant advances in both the power and …
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Adaptive Control of an Aeroelastic System for Active Flutter Suppression and Disturbance Rejection
… strives for lighter weight, more aerodynamically efficient structures. These improvements may come with the drawback of increased structural flexibility and elevated aeroelastic effects, often resulting in a lower flutter speed. This motivates the implementation of advanced control methods to …
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Reshaping concrete: Empowering development through low-carbon structural design
… concrete and typically use structurally inefficient typologies like prismatic beams and flat slabs despite their structural material waste. This is because their construction mimics the materially inefficient practices of the More Economically Developed Countries (MEDCs), which were …
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The investigation of an inexpensive infra-red camera based building monitoring system for the aid of efficient building development
… systems are detrimental toward providing more efficient structures. Current UAVs (Unmanned Aerial Vehicle) used for surveying purpose are highly priced, with costs ranging upwards of R25 000. In this project, we propose a possible cost effective solution, with a budget of R10 000, that can be …
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Solution methods for dynamic and non-linear finite element analysis
The computer analysis of structures and solids using finite element methods has now taken on very significant proportions. In many cases the safety of a structure may be significantly increased and its cost reduced if an appropriate finite element analysis can be and is performed. In the …
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Extraction and Exploitation of User Goals and Intentions for Querying and Recommendation
… the scalability of the techniques and the efficient structures and indexes that we use to store and retrieve the items alongside the goal-related data allows us to meet the requirements of modern online systems.