Thesis (M.Ed.) -- Memorial University of Newfoundland. 1975. / Typescript. Bibliography : leaves 14-15. Also available online.

Thesis (Ph. D.)--University of Wisconsin-Madison. / Photocopy of typescript. Ann Arbor, Mich. : University Microfilms International, 1981. -- ix, 394 leaves, [3] folded leaves ; 22 cm. eContent provider-neutral record in process. Description based on print version record. Includes bibliographies.

No description available.

Control oriented local area networks (COLANs) are being installed in factories at an increasing rate. Traditionally, process control has operated with a master scheduler (computer) monitoring a number of points in a control grid. As the complexity of today's process control needs grow, the need to process information locally increases. Microcontrollers, networked with a master scheduler, can collect data from a locus of points and make decisions as to whether the master needs to be notified or not. By processing data locally, memory and execution time are freed up for the master scheduler. Task implementation becomes modular in nature, resulting in process control software that is easier to write, and maintain. This structure is the basis for COLAN V, a low cost, real-time, distributed control network developed at Oregon State University. COLAN V was used as the foundation for the creation of a multi-media presentation system. Six microcontrollers were networked together to remotely control the operation of projectors, projector screens, and lighting. Based on the application the master scheduler was replaced by a tape player. This allowed the storage of the audio part of the presentation on one track of the tape and the storage of the synchronized control signals on the other track. This distributed control network supplied a low cost solution to a need that was not addressed by the commercial market at any price. / Graduation date: 1992

Thesis (M.S.)--Kutztown University, 1989. / Source: Masters Abstracts International, Volume: 45-06, page: 2807. Abstract precedes title page. Typescript. Includes bibliographical references (leaves 50-51).

"The purposes of this study are: I. To survey, through the questionnaire method and through the examination of the literature in the field, the general practice of using student operators of audio-visual equipment. II. To determine the best method of using students as projectionists in relationship to the student as well as the service rendered the school. III. To produce a projectionist's manual for the use of students training to operate audio-visual equipment. It is realized that there are on the market several audio-visual operator's manuals; also those produced by commercial concerns to accompany various pieces of equipment, but through personal experience and the experience of others the writer feels that all of these manuals are too technical for use by elementary and high school students. Therefore the primary purpose of this study is to produce such a manual"--Introduction. / Typescript. / "March, 1949." / "Submitted to the Graduate Council of Florida State University in partial fulfillment of the requirements for the degree of Master of Arts under Plan II." / Advisor: Louis Shores, Professor Directing Paper. / Includes bibliographical references (leaves 39-41).

No description available.

Thesis submitted in fulfilment of the requirements for the degree Master of Technology: Electrical Engineering in the Faculty of Engineering at the Cape Peninsula University of Technology, 2012 / People are spending more time being entertained at home now than ever before. It is currently common to find a home entertainment console containing an LCD or Plasma television, DVD player and surround sound amplifier in many homes. The number of home entertainment devices is increasing, yet our understanding of the effect that they have on power quality is incomplete. This study determines the power consumption of home entertainment equipment as well as the effect that such devices have on harmonic distortion levels. A methodology is developed for the measurement of the power consumption of home entertainment equipment including television sets, DVD players and home theatre. The results are compared to the Energy Star standard to determine if the power consumption of these devices is within the limits imposed. The methodology presented consists of three parts, performing measurements, generating results and comparison to energy and harmonic standards. The developed methodology includes steps for mathematically combining the measured voltage and current waveforms of individual devices. The goal is to determine total current and voltage waveforms for a combination of devices. The methodology also describes how to analyze the resultant synthesized waveforms so as to determine the power consumption at each harmonic. The levels of current harmonics for individual devices and groups of devices are determined and then compared to the EN6100-3-2 standard to ascertain if they are within the limits imposed. The power consumption and current harmonics of each combination as well as individual devices were analysed. Using the developed methodology, four case studies were conducted, grouping different home entertainment devices together. It was found that the power consumption of LCD television sets are below the limits imposed by the Energy Star standard while for Plasma based televisions it was above these limits. Current harmonic levels for CRT based televisions were found to be above the limits imposed by the EN6100-3-2 standard while those for LCD and Plasma based televisions the levels were below the limits. The research concludes that the current harmonics of new LCD and Plasma based televisions does not pose any concern for power quality.