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 33232 for “"investigation"”.
-
Delco light investigation
The object of this investigation is to make a comprehensive study and obtain reliable information on the possibilities and limitations of an isolated electric light plant; operating cost will be determined with practical equipment to be used in connection with same, under actual farm conditions. …
-
Investigation of thermoacoustic muffler
The design, construction and testing of a thermoacoustic muffler is discussed. The performance of the muffler is characterized by its ability to reduce the quality factor Q of an acoustic resonator. Measurement of the Q of a helium filler muffler were made for temperature differences ranging from 0 …
-
Investigation of Computer Crimes
… their motivates will be identified. The general investigation process of the computer crime investigation will be outlined in the second chapter. After attempting to define computer crime, computer criminals and investigation process, a case study related to the topic will be examined and the …
-
Investigation of spring valves
This thesis presents a study of spring valves with the ultimate aim of using them as high pressure hydraulic flow-control valves for agricultural applications. A closed helical coil spring, when pressurized, will provide a controlled flow between the coils when extended or laterally deflected a …
-
Investigation of Acrylated Alkyds
Four model alkyds were prepared to study the grafting mechanism of acrylic monomers, methyl methacrylate and butyl acrylate, onto alkyds. These model alkyds were prepared via a fatty acid process with stearic acid, oleic acid, linoleic acid or linolenic acid with phthalic anhydride and glycerol. …
-
Investigation of Rhenium's Biogeochemistry
The form of the paleoredox indicator, rhenium, that is sequestered in reducing sediments is not known. To probe this question, I used Laser Ablation ICP-MS to look for correlations between Re signals and those of other elements. My results point to the possibility that Re is incorporated into …
-
Pyrogallo4arenes: a synthetic investigation
… final section of this research work involved the investigation of the ion selectivity of both calix[4]arene phthalonitriles and pyrogallol[4]arenes using picrate extractions, mass spectral techniques and ion selective electrode based potentiometry.
-
Investigation of slanted slots
With the number of wireless devices and demand for information transmitted wirelessly dramatically increasing, being able to develop simple and reliable antennas with large bandwidths is becoming more important. The size of many of these wireless devices can also be small, introducing yet another …
-
Investigation of Streptomyces promoters
[The work described here had multiple aims: to create a promoter probe that was suitable for the isolation of developmentally regulated Strepcomyces promoters, to isolate such promoters, to develop a computer assisted analysis system whereby potential promoter sequences could be determined and to …
-
Investigation of electromagnetic welding
We propose several methodologies to study and optimize the electromagnetic process for Electromagnetic Forming (EMF) and Welding (EMW), thereby lowering the necessary process energy up to a factor of three and lengthening the life-time of EMW compression coils. We present a new theoretical approach …
-
Investigation in construction entrepreneurship
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1980.
-
Investigation of vacuum breakdown
Thesis: Sc. D., Massachusetts Institute of Technology, Department of Electrical Engineering, 1962
-
Investigation of air propellers
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1912
-
Investigation of cellulose xanthate
I have attempted to synthesize cellulose xanthate in anhydrous liquid ammonia, and to analyze the product for combined sodium and sulphur, with the hope of determining the exact chemical composition of each C₆ unit of cellulose xanthate. It is the purpose of this work to study the xanthation of …
-
An Investigation of Line
The line is the basic element of design. Some would argue that the most basic element would be the point, but in order for anything to be defined by that point, another point would have to be referenced. The connector, whether real or perceived, is the line. As designers, when marking a surface …
Page 1 of 1662