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Browsing Physics by Title
Now showing items 41-60 of 325
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Comparison of Noise Levels for Water Vapor Radiometers and the Troposphere
(1989)The Jet Propulsion Lab (JPL) has been appointed as NASA's division for unmanned space flight. Research in Very Long Baseline Interferometry (VLBI) is one aspect important to JPL. One of the largest error sources for ... -
A Comparison of Pulmonary Functions, Before and After Bronchodilator, Using Small- and Large-Particle Nebulizers, Driven with Either Air or 80%He - 20% 02 on Patients with Reversible Airways Disease
(1979)The comparison of pulmonary functions is used frequently in evaluating patient response to aerosol bronchodilators. The usual method for delivery of aerosol bronchodilators employs some arbitrarily chosen nebulizer driven ... -
Comparison of Wet Troposphere Calibration Techniques and Their Effects on VLB I Geodetic Measurements
(1984)The water vapor in the troposphere is currently the largest source of error in VLBI geodetic measurements. Scientists have been working on this problem for over 10 years. Major improvements have been made. This report ... -
A Comparison of Whitechapel and Malmark Handbells
(1981)Although handbells have existed for thousands of years, and tuned handbells since the seventeenth century, little in the way of scientific research has been done with them. Some of the research includes finding modes ... -
A Computer Assisted Approach for Nailing Fractured Hips
(1980)This study was motivated by the high incidence of unsatisfactory results with present techniques for pinning fractured hips. Excess mortality and failure to walk resulted mostly from complications due to improperly placed ... -
Computer Modelling of Electromagnetic Wave Propagation across Irregular Terrain
(1981)A method of modeling the VHF radio wave field strength is presented for use in evaluating the effective zone of communication and the additional area in which interference with other sources transmitting on the same frequency ... -
Computer Security on a VAX system
(1987)In a time when automation and our reliance on computer systems is steadily growing it is very important for us to ensure that the information we entrust to computers is properly protected. Methods to protect this ... -
Computer Simulation of Hydrogen Bonding in Mixed Layers of PE and PC Lipids
(1994)Modeling cell membranes is one way we can come to a better understanding of how they work, and their unique phase behavior makes them an interesting system to model. Membranes are primarily composed of a phospholipid ... -
Computer Simulation of Weak Shock Propagation in a Shock-Tube
(1974)The purpose of this research was to become familiar with the iterative method and to apply this technique to further the understanding of the previous shock-tube experiments. It was anticipated that the previous results ... -
Computer Simulations of Binary Alloys and Phospholipid Phase Transitions
(1997)The intent of this paper is to express the significance, methods, and results of our research on computer simulations of various physical phenomena, while concurrently providing enough background information. The paper ... -
The Computerized Physics Testing System
(1984)The following thesis is intended to provide information for those interested in either the general form of the physics testing system or in its mechanical details. Both educational philosophy and programing mechanics played ... -
Construction and Calibration of an AC Susceptometer for Investigation of the Magnetic Exchange Interactions of Binuclear Cobalt(II) and Nickel(II) Macrocyclic Compounds
(1997)An AC Susceptometer was constructed and calibrated. It was able to reproducibly measure susceptibility in the temperature range from 10 -300 K. It was used to measure the susceptibility of a series of binuclear macrocyclic ... -
Construction and Testing of an Audio Frequency Preamplifier and Power Amplifier
(1975)The two amplifiers built in this project comprise a high quality audio-frequency ampl1fier system. Used in conjuction with each other, they should be capable of providing all the gain required to drive almost any hi-fi ... -
Construction of a Beta-Ray Spectrometer
(1967)During the last three months I have been involved in the construction of a beta-ray spectrometer. This paper is intended as a report on this project. The theory of beta-decay is treated only in such depth as is necessary ... -
The Construction of a Transmission Line Superregenerative Receiver for Use in Pure Nuclear Quadrupole Resonance Spectroscopy
(1966)The purpose of this project was to build a device that would be both a source of r-f energy and a detector capable of detecting an absorption of energy in the 100 to 300 me range. Several types of radio-frequency ... -
Construction of an Electrometer
(1973)The purpose of this project was to build,calibrate and use an inexpensive electrometer. The electrometer was constructed in the college electronics lab and tested by the running of the photoelectric effect and the determination ... -
Continuum Percolation Models of Composite Materials: Conductivity of Conductive Medium Containing Insulating Needles
(1988)The research for my Senior Individualized Project was performed in a research assistantship in the Condensed Matter Physics Branch of the Physics/Astronomy Department of Michigan State University. The majority of our ... -
Conversion of Electrical to Acoustic Energy by a Spark
(1967)In this research, an attempt is made to view the spark from energy considerations. An insight into the relationship between the energy used to produce a spark and the transformation of this initial energy into other ... -
Cooling Pond Modeling
(1971)For the purposes of micrometeorology the atmosphere near the surface can be divided into three general regions. First, immediately adjacent to the surface exists a very thin laminar sublayer in which the air flow is smooth ...
