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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Centralized optical backplane bus using holographic optical elements for high performance computing

Bi, Hai, 1975- 28 August 2008 (has links)
Optical communication is distinguished for its enormous interconnect capacity over long distance. As the cost of optical components drops, high bandwidth optical systems were successfully employed into local area network and computer racks because electrical counterparts are not able to deal with the data rate demands for these applications. With the popularity of multi-core CPU in High Performance Computers, the board-to-board interconnects exclusive based on electrical technology in backplane applications become insufficient because of not only bandwidth crises, but also wiring congestions. Many researches have projected that the progress of optical technology will further push down the boundary demarcating electrical and optical domains in the interconnect hierarchy. Accordingly, backplane or even board-to-board level interconnects will benefit from the complement of optical interconnect. From architecture point of view, an optical bus implementation of the optical interconnect has the potential advantage of both huge bandwidth and elimination of wiring congestion. In contrast, optical waveguide and free-space interconnects although provide high bandwidth capacity, are essentially point-to-point technology which requires routing to a central switch on the backplane. The centralized approach that was based on substrate guided optical interconnects is the only way known that fulfills a uniform fan-out for different nodes in a bus architecture, which allows medium sharing among nodes. In this dissertation, innovative bit-interleaved optical backplane bus architecture is created based on centralized substrate-guide optical interconnect, which allows the tremendous bandwidth capacity to be shared by retaining the share bus architecture. Therefore, a secure and reliable high speed transmission channel could be established by distributing copies of confidential information separately. The feature provided by this innovative design cannot be fulfilled using electrical interconnects or other optical point-to-point technology without causing wiring congestions. In this dissertation, the optical characteristics of the centralized optical bus such as bandwidth and alignment tolerance are analyzed so that multi-channel implementation are successful on the fabricated optical interconnect layer. A 3-board-16-channel computer server using optical backplane board demonstrator using centralized optical bus was built upon the simulation, design and packaging work.
22

Globalization, institutions, and industry development a case study of the personal computer industry in Korea and Taiwan /

Bae, Young-Ja. January 1998 (has links)
Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 1998. / Includes bibliographical references (leaves [213]-221).
23

Design and implementation of a microcomputer, controller for stabilizing an inverted pendulum mounted on a cart

Bhargava, Parag Brijendra January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
24

A serial to parallel interface for a personal computer controlled solar radiometer

Sutton, Robert Eugene, 1959- January 1988 (has links)
A serial to parallel interface (SPI) has been designed for a personal computer (PC) controlled solar spectroradiometer. The SPI allows for serial RS-232 communication between the radiometer and the PC. The serial data from the PC is converted to discrete, parallel control lines that connect to the various subunits of the radiometer. Data from these subunits are received in parallel at the SPI and converted to serial for transmission to the PC. Pascal programming is used to control all of the radiometer functions including tracking, filterwheel rotation and data gathering.
25

Microcomputers in education : The influence of feedback on learning and motivation

Mohamedali, M. H. January 1988 (has links)
No description available.
26

Manufacturing planning and control in small companies : A contribution to the application of 'scientific' methods in small business with the help of microcomputers

Chaharsooghi, S. K. January 1987 (has links)
No description available.
27

Spatial orientation and familiarity in a small-scale real environment using PC-based virtual environment technology

Molmer, Matthew. 09 1900 (has links)
Conducting training in a new or unfamiliar environment requires a certain amount of time to acquire the necessary spatial orientation and familiarity to that environment's physical layout. This thesis explores the effects of exposing individuals to a PC-based virtual replication of a small-scale real world training environment to determine if such exposure has any effect on an individual's ability to acquire the necessary spatial orientation and familiarity of the real world environment. In this thesis individual spatial orientation and familiarity to the layout of the real world environment will be measured using a set of retrieval tasks conducted in the real environment and by development of a sketched map of that environment. Establishing a link between an individual's ability to gain an acceptable level of spatial orientation and familiarity with a real world environment by first exposing them to a PC-based virtual replication of that environment is vital to the future of video game development and virtual simulation technologies used for training in the military.
28

A study on the use of microcomputers in small manufacturing firms : research report.

January 1983 (has links)
by Chan Chun-kwong, Lau Yick-man. / Bibliography: leaves 107-110 / Thesis (M.B.A.)--Chinese University of Hong Kong, 1983
29

A clock timer hardware unit for an Intel 8080 CPU-based computer system

Franzblau, Michael January 2010 (has links)
Typescript, etc. / Digitized by Kansas Correctional Industries
30

Some uses of a microprocessor in transducer systems

Palmer, Dwight R January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries

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