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.
Results
Showing 1 to 20 of 24 for “"light bulb"”.
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Design of Portable DC Light Bulb for the DC House Project
… the design and implementation of the Portable DC Light Bulb system for Cal Poly San Luis Obispo’s DC House Project. The DC Portable Light Bulb highlights the NiMH battery charging circuit, buck converter, and boost converter. The system is intended as a flashlight adaptor placed in between the …
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An Analysis of Current Interruption upon the Behavior of Light Bulb Filament during Initial Aircraft Impact in Support of Aircraft Accident Investigations
… to determine the state ("on" or "off") of each light bulb immediately before the impact. Determination of the state of lamps may help investigators determine the probable cause of the accident. The information gained from the lamp's filaments may be used to infer the aircraft's operational …
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Garden of the mind
… and were engaged with human-made objects such as light bulb, cardboard, and cloth. The choice of materials allows me to examine how I feel about the surroundings. For example, I use cardboard as a medium to express a feeling of temporary presence. On the other hand, the choice of colors represents …
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Magnetic augmented rotation system (MARS ) - properties and performance
… of 6 volts to 12 volts, a load in the form of a light bulb, a voltage transformer, and digital multimeter to monitor current/voltage in real-time. Additionally, infrared imaging is utilized during charging the rechargeable battery to monitor changes in temperature.
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DC circuits : contextual variation of student responses
… types of resistive element were used: a light bulb, a heater and a resistor. A previously piloted, eight-question written instrument, consisting of both forced choice responses and free response writing, was administered to two cohorts of non-major, first year physics students from …
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Hand powered portable ultraviolet sterilizing water bottle with active UV dose sensing
… hand crank generator. A spermicidal ultraviolet light bulb, rated at 253.7nm (UV-C), was integrated with a common NalgeneTM water bottle. Along with the bulb, UV. dose sensing electronics and a hand crank generator were incorporated as well, with the generator supplying power to both the bulb and …
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Design and Evaluation of a Portable Ultra-Violet Microbial Disinfection Chamber
… in use. This thesis utilizes Ultra-violet light to eradicate the bacteria. A portable unit was constructed that contains the light bulb and fan. Two different trials were conducted: Controlled Laboratory trials and Fish Culture Room Trials. The Controlled Laboratory Experiments were …
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Intentional and Unintentional Light Emission Diode in Power Electronics applications
The phenomenon of light emission in a P-N junction is due to the recombination of electrons and holes in the junction. This light emission phenomenon has been widely used in power electronics applications. Among them, it is worth remembering the use of the light-emitting diode (LED) as a source of …
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Portable Tungsten Coil Atomic Emission and Atomic Fluorescence Spectrometry
… from a 24 V, 250 W commercial projector light bulb. The coil is housed in a small, aluminum cell. The emission signal exits from a small aperture in the cell, while the bulk of the blackbody emission from the tungsten coil is blocked. The resulting spectra exhibit extremely low background …
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Electro-optical method of distinguishing recyclable plastics
… bottle saves enough energy to power a 60W light bulb for six hours. Our local East Riding of Yorkshire Council is trying to reduce the amount of waste by recycling different types of waste. However, not all plastics can be recycled by the council currently. The aim of this project is to …
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LuminAR : a compact and kinetic projected augmented reality interface
… embodied in familiar everyday objects, namely a light bulb and a task light. It allows users to dynamically augment physical surfaces and objects with superimposed digital information using gestural and multi-touch interfaces. This thesis documents LuminAR's design process, hardware and software …
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Framework for Embodied Telepresence: A Meeting Case Study
… (2) Position save and playback, (3) Local smart light bulb control, and (4) visual cue. At the end, our work evaluates the developed telepresence system by measuring the performances of given tasks to the participants. The evaluation shows that our system provides a sense of presence to both …
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Phenomenal Things
… dialogue with one another, as they welcome a new light bulb to their network. As participants move about the AR actors, proximity to each character will cause the participant to "friend" that character. "Friending" in this case means to get close to and influence the version of the story being …
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The Effects of Delay and Probabilistic Discounting on Green Consumerism
… by randomly assigning participants to a light bulb (low magnitude) or water heater (high magnitude) condition. Within each magnitude condition, promotional messages highlighted the increased operating cost of the conventional product (loss frame) or decreased operating cost of the green …
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Fuzzy Model Reference Learning Control for Smart Lights
… in office buildings by means of employing smart lighting. This thesis investigates the implementation of an adaptive and nonadaptive fuzzy control for a smart light experimental testbed. The objective is to accurately regulate the light level across the experimental testbed to a desired voltage …
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Maternal methamphetamine use during pregnancy and subsequent neurodevelopmental and psychological sequelae in the child - a Cape Town experience
… consists of placing the powder or crystal in a light bulb (from which the metal threading has been removed) and inhaling the fumes produced while heating the bulb from below with a lighter.(2). The use of methamphetamine has risen sharply globally over the last decade, used by 26 million people …
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Horizontal linear array sensor localization and preliminary coherence measurements from the 2001 ASIAEX South China Sea experiment
… Line (LBL) navigation system and two days of light bulb drops to provide array sensor localization. Accurate sensor positions are needed to determine the correlation versus sensor separation distance and ultimately the array coherence length.
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Xanthene/Benzoxanthene Dyes: Novel Synthetic Metholologies, Applications in Molecular Recognition, Cellular Imaging and the Design of a Tunable White (RGB) Light Emitter
… 300 nm, one of the fluorophores emits near white light, which resembles the white light from an incandescent light bulb. Discovery of a novel boron mediated 1-2 aryl shift reaction on substrates bearing a leaving group at a remote benzylic position. During the course of my work involving xanthene …
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Efficient quantum optical state engineering and applications
… of the existence of individual particles of light by Albert Einstein, a reliable source of this simple quantum state of one photon does not exist. While common light sources such as a light bulb, LED, or laser can produce a pulse of light with an average of one photon, there is (currently) no …
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Novel photonic phenomena in nanostructured material systems with applications and mid-range efficient insensitive wireless energy-transfer
A set of novel mechanisms for the manipulation of light in the nanoscale is provided. In the class of all-dielectric material systems, techniques for the suppression of radiative loss from incomplete-photonic-bandgap structures are developed: the cancellation of radiation channeled into discrete …
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