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 425 for “"watt"”.
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Digital watt-meter
Thesis: B.S., Massachusetts Institute of Technology, Department of Electrical Engineering, 1980
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Multi-Watt, diode-pumped planar waveguide lasers
This thesis reports on progress towards diode-bar pumped crystal waveguide lasers with a high-power, high-quality output. <br/><br/>It is shown that in order to accommodate the highly divergent, non-diffraction limited output from a diode-bar pump source, a waveguide with a relatively large …
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Design of a 50-watt air supplied turbogenerator
This thesis presents the design of a high-pressure-ratio, low-flow turbogenerator with 50 W electrical power output, designed to operate from a 5-bar air supply. The research shows that a MEMS-based silicon turbine in combination with a micro-machined generator can meet the design objectives of the …
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A self-tuning 100 watt wireless power transfer system
… control. An automated system comprised of a 100 watt switching power amplifier coupled to a frequency controller is designed and implemented. The desired operating frequency is determined by quantification of the real-time AC power supplied to the resonant transmitter. The control system is …
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A fully-integrated multi-watt permanent-magnet turbine generator
… generator shown to generate milliwatt-level power, with a further potential to deliver watt-level power. To achieve full integration, a broad range of topics are examined, including the design of gas bearings, high-speed mechanical analysis using non-ideal material interfaces, …
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An uncertainty budget for the precursor Watt balance for South Africa
The 26th General Conference on Weights and Measures (CGPM) held on the 16th November 2018 has adopted the revision of the International system of units (SI) to be based on the fundamental physical constants.
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Radio Direction Finder Bearing Conversion from Watson-Watt Display to Linear Display
Submitted by Carly Hafner (chafner2@illinois.edu) on 2014-07-09T17:28:15Z No. of bitstreams: 1 1956_Bitzer.pdf: 2621590 bytes, checksum: 93da6fc6c732d267866266f1f5aec1c2 (MD5)
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Instrument development and plasma measurements on a 200-watt Hall thruster plume
Plume diagnostic instruments were developed and the BHT-200 Hall thruster plume was characterized in order to support ongoing computational plume models. The instruments included a Faraday probe to measure current density, a hot emissive probe to measure plasma potential, and a cold Langmuir probe …
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The discursive shaping of intellectual ownership: the case of James Watt and Josiah Wedgwood
… differences and some similarities between James Watt and Josiah Wedgwood's legitimation of their respective intellectual properties. More particularly I mean to investigate the literary technologies involved in their discourses over authorship, originality, invention and imitation. Such an …
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Development of a cold end and high-efficiency valves for a one-watt 10 Kelvin cryocooler
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2003.
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Influencia de la intensidad lumínica en el comportamiento productivo en pollos de engorde en condiciones comerciales
… testigo T1: con una intensidad lumínica de 1.5 watt/m' (16.2lux), T2 con 0.5 watt/m2 (5.4lux), T3 con 1.0 watt/m2 (10,8lux) y T4 con 2:0 watt/m' (28lux) para un total de 4 tratamientos y dos repeticiones por tratamiento. Las variables estudiadas fueron: consumo de alimento, peso vivo, ganancia …
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Beyond this is a nothing: Beckett's early fiction
… Samuel Beckett's first five novels, Murphy, Watt, Molloy, Malone Dies and The Unnamable, and philosophy, arguing that Murphy is best understood as a satire of Descartes, Watt is best understood as a satire of Wittgenstein, and Molloy, Malone Dies and The Unnamable are best understood as a …
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A cost optimization of solar-powered, drip irrigation systems
… These configurations consisted of five 310 Watt solar panels coupled with a 5m³ water buffer, three 295 Watt solar panels coupled with a 5m³ water buffer, and three 320 Watt solar panels coupled with a 4m³ water buffer, respectively. These systems are projected to cost $4,600, $3,870, and …
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Altering the Management of Hydroelectric Facilities in California to Account for Climate Change
… Canyon project has decreased from 559,560 mega-watt hours in 2005 to 15,517 mega-watt hours in 2014. The projects located on the North Fork Feather River, Poe, Rock Creek and Cresta’s production in 2006 was a total of 1,952,050 mega-watt hours and in 2014 only 733,241 mega-watt hours were …
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Berufswahlmotivation Lehramt: Ein weltweit ähnliches Phänomen? Eine international vergleichende Studie
… zählen das FIT-Choice-Projekt (Richardson und Watt, 2007), Femola (Retelsdorf und Möller, 2012) und STeaM (Weiß und Kiel, 2013). In dieser Arbeit wird das FIT-Choice-Modell (Richardson und Watt, 2007) verwendet, um die Berufswahlmotive eines internationalen Samples Lehramtsstudierender zu zwei …
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Intensity stabilization of a solid-state laser for interferometric gravitational wave detectors
… servo to stabilize the intensity of a 10 Watt continuous-wave Nd:YAG laser. A relative intensity noise of 1 x 10⁻⁸ [square root] Hz at 10 Hz has been achieved.
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The Functional-Analytic Development of a Test for Behavioural History using the Concept of Derived Stimulus Relations
… 1971) and extending upon the previous work of Watt, Keenan, Barnes and Cairns (1991). Chapter 1 presents a review of the behavioural literature concerned with stimulus equivalence and derived stimulus relations. Most importantly, a seminal study by Watt et al. (1991) is outlined. In that study, …
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High efficiency switching CMOS power amplifiers for wireless communications
… the design of highly efficient CMOS PAs for watt-level applications is a challenging task. This dissertation focuses on the development of the design method for highly efficient CMOS PAs to overcome the fundamental difficulties presented by CMOS technology. In this dissertation, the design …
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A pulse-width-modulated controlled-transformer post regulator
… of 82%-86% is achieved in a 200khz, 500-watt, 5V-output off-line regulator. A discussion of design issues of the controlled transformer is also presented.
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