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 746 for “"improved performance"”.
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Switching adaptive filter structures for improved performance
We describe an adaptive filter system that is able to switch between adaptive filter algorithms in order to produce fast convergence and low mean Square error (MSE). The switching system employs two adaptive filters for two different tasks; one is intended to yield fast convergence, and logically …
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Projection Methods for Improved Performance in Adaptive Systems
Further, there are parallel and serial methods for reusing the data. This allows the system designer even greater flexibility in the implementation of the adaptive system. These methods may be further enhanced by the use of acceleration techniques originally developed in a row-projection framework. …
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Chemical approaches to the improved performance of nanoelectronic devices
… with the Pd precursor, the ION/IOFF ratio improved by a factor of 6 on average. On the other hand, no improvement was observed for samples treated with the HfB2 precursor due to the large mismatch in work functions between CNTs and HfB2, which creates a Schottky barrier. A solution process …
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An evolutionary approach to improved performance of merged companies
Thesis (S.M.)--Massachusetts Institute of Technology, System Design & Management Program, 2001.
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Improved performance alternator with fully integrated Switched-Mode Rectifier
… of an SMR-based alternator that provides improved power and efficiency at the present automotive standard of 14 V. The SMR-based machine was built from commercial electronic devices and packaged such that it could be fully integrated into the alternator housing without impacting the …
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CRYSTAL STRUCTURE ENGINEERING FOR IMPROVED PERFORMANCE OF EMERGING NANOSCALE DEVICES
… for InGaN/GaN disk-in-wire LEDs to achieve improved internal quantum efficiency (IQE).
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Design of multidimensional nanophotonic materials with improved performance and functionalities
Multi-dimensional (2D and 3D) architectures with characteristic feature sizes on the order of a micrometer and below can exhibit extraordinary properties that are not present in their non-structured counterparts. Of particular interest are 3D microstructures, which have been found promising due to …
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Leveraging Processor-diversity For Improved Performance In Heterogeneous-ISA Systems
… investigate the effectiveness of executing High Performance Computing (HPC) workloads on multiprocessors with heterogeneous Instruction Set Architecture (ISA) cores. ISA-heterogeneity in processor designs provides a unique dimension for researchers to explore performance benefits through …
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FDTD Analysis of Plasmonic and Nanojet Enhanced Photodetectors for Improved Performance
The finite-difference time-domain (FDTD) technique is a very flexible and robust means to solve problems spanning a broad range of applications (defense, communication, computing, semiconductor devices and biomedicine), especially where geometrical complexities, nonlinearities and multiphysics …
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Improved performance of a virtually imaged phased array for optical demultiplexing
Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
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Trellis-coded permutation modulation for improved performance of narrowband noncoherent FSK
… this thesis we investigate ways to improve the performance of noncoherent FSK in narrowband channels. It is shown that FSK permutation modulation has better spectral efficiency than conventional FSK modulation" but with the tradeoff on reduced energy efficiency. To overcome this problem, we …
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Adapting ADTrees for Improved Performance on Large Datasets with High Arity Features
The ADtree, a data structure useful for caching sufficient statistics, has been successfully adapted to grow lazily when memory is limited and to update sequentially with an incrementally updated dataset. However, even these modified forms of the ADtree still exhibit inefficiencies in terms of both …
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Development of high-response piezo servovalves for improved performance of electrohydraulic cylinder drives
… testing of high-response piezo-servovalves for improved performance of electrohydraulic cylinder drives. Performance improvement means in the context of this work an enhancement of reference and disturbance response of the drive in a closed-loop pressure and position control. Reference and …
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Improved Performance of Multilayer Neutron Monochromator by Additon of Hydrogen in Titanium Layer
Made available in DSpace on 2017-07-06T18:48:52Z (GMT). No. of bitstreams: 3 Ju_Hyunsu_MS.pdf: 13210324 bytes, checksum: be7c79b6c5b4a6f2d301fa24ed847746 (MD5) Ju_Hyunsu_MS_ABS.pdf: 77999 bytes, checksum: 00214c3fb36571a3d0b25a628b64512e (MD5) license.txt: 4813 bytes, checksum: …
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Technology Agnostic Analysis and Design for Improved Performance, Variability, and Reliability in Thin Film Photovoltaics
… affecting panel yield, and predictive models of performance reliability are needed. This has proved to be especially challenging for TFPV for two reasons in particular. First, TFPV technologies encompass a wide variety of materials, processes, and structures, which fragments the research effort. …
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Motivational strategies for improved performance of multigenerational non-academic staff at a selected state university in Zimbabwe
Submitted in fulfilment of the requirements for the degree Doctor of Philosophy in Human Resources Management, Durban University of Technology, Durban, South Africa, 2025.
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Optimised solder interconnections in crystalline silicon (c-Si) photovoltaic modules for improved performance in elevated temperature climate
… fatigue lives. There is the need to improve the performance of the system operating in such regions to solve the grave energy poverty and power shortages. Solder interconnection failure due to accelerated thermo-mechanical degradation is identified as the most dominant degradation mode and …
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Design and numerical analysis of an unconventional surface-piercing propeller for improved performance at low and high speeds
… In particular, designs often neglect low-speed performance, focusing solely on high-speed operation. This research therefore developed a new surface-piercing propeller concept designed instead to maximize performance across the spectrum of operating speeds. Applying established theory for …
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Four-constellation GNSS Reliability and the Estimation of Inter-system Time-offsets for Improved Performance in Challenging Signal Environments
… clock-offset information. The positioning performance of multiple GNSS constellations has been examined through covariance simulation and with live data. The benefit of using a priori clock-offset constraints has been demonstrated. It has been found that the benefits of using a priori …
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