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Articles 11041 - 11070 of 12097
Full-Text Articles in Entire DC Network
Anti-German Sentiment In Madison And St. Clair Counties, 1916-1919, Frank Glen Adams
Anti-German Sentiment In Madison And St. Clair Counties, 1916-1919, Frank Glen Adams
Masters Theses
No abstract provided.
The Effects Of Participation In Professionally Related Areas Of Physical Education On The Scholastic Achievement Of Selected Physical Education Majors, Donald E. Neece
The Effects Of Participation In Professionally Related Areas Of Physical Education On The Scholastic Achievement Of Selected Physical Education Majors, Donald E. Neece
Masters Theses
No abstract provided.
A Study Of Interscholastic Wrestling Injuries In The State Of Missouri During The 1965-66 Season, Glennon J. Acksel
A Study Of Interscholastic Wrestling Injuries In The State Of Missouri During The 1965-66 Season, Glennon J. Acksel
Masters Theses
No abstract provided.
Report Of Field Experience In Administration, Gail L. Borton Jr.
Report Of Field Experience In Administration, Gail L. Borton Jr.
Masters Theses
No abstract provided.
A Historical Description Of The Eastern Illinois University Audio-Visual Center From Its Beginning To 1966, J. Aleta Carman
A Historical Description Of The Eastern Illinois University Audio-Visual Center From Its Beginning To 1966, J. Aleta Carman
Masters Theses
No abstract provided.
An Evaluation Of Potomac Community Consolidated School, Dean L. Myers
An Evaluation Of Potomac Community Consolidated School, Dean L. Myers
Masters Theses
No abstract provided.
Absolute Soft X-Ray Dosimetry For Radiation Chemistry Studies, Howard Sajon Joyner
Absolute Soft X-Ray Dosimetry For Radiation Chemistry Studies, Howard Sajon Joyner
Masters Theses
"A homogeneous, variable plate separation ion chamber consisting of a polyethylene body and employing flowing ethylene as the cavity gas has been designed and tested for the specification soft x-ray (<75kV) energy deposition in typical hydrocarbons. The variable plate separation feature provided primary data on the differential specific ionization originating within the cavity gas occupying the effective collector volume which is independent of inherent chamber inhomogeneities associated with the electrically conducting films comprizing the chamber electrodes. These data demonstrated that charged particle equilibrium is established within the first few ten thousandths of an inch in typical solid hydrocarbons irradiated with this class of sources. Comparison of this type of chamber with a fixed plate separation, static cavity gas mode of operation showed that the latter may predict dose rates with inherent errors exceeding 100%. With the quality of electronic readout accessories presently available, the variable plate separation chamber yielded dose rate data exhibiting a probable error of 3.8 percent (plus the unknown uncertainty in the literature data on the energy required to form an ion pair), and an ultimate limiting error of less than 2 percent appears feasible"--Abstract, page ii.
Anodic Dissolution Of Lead In Aqueous Solutions, Christopher Kuo-Chieh Wu
Anodic Dissolution Of Lead In Aqueous Solutions, Christopher Kuo-Chieh Wu
Masters Theses
"The apparent valence of lead was determined in one normal solutions of potassium nitrate, ammonium acetate, lead nitrate, and lead acetate at temperatures of 25 and 50°C. The current density was varied from 0.001 to 1.00 amp•cm -2. The apparent valence of lead ranged between 1.90 and 2.00 in all solutions. The lower valences were reached at higher current densities. The amount of disintegration was very small, and was dependent upon film formation on the surface of the anode.
Potential-current density relationships for the anodic dissolution of lead were obtained in the electrolytes mentioned above. In potassium nitrate and …
An Investigation Of Failure Patterns Of Layered Specimens Loaded In Uniaxial Compression, Narendra Y. B. Choudary
An Investigation Of Failure Patterns Of Layered Specimens Loaded In Uniaxial Compression, Narendra Y. B. Choudary
Masters Theses
"Uniaxial compressive strength for two and three-layered specimens was obtained with different thicknesses of layers and also for different length to diameter ratios. The fracture and failure pattern was studied. Shear and extension fractures were observed in the layers. Geometry and end conditions of the specimen had a great influence in the failure and fracture pattern.
The uniaxial compressive strength of a layered specimen was found to be lower than the weighted average strength and either low or high when compared to the arithmetic average strength, depending on the ratio of the heights of the layers. The compressive strength of …
Calibration Of An Instrument To Calibrate Accelerometers, Nader Khorzad
Calibration Of An Instrument To Calibrate Accelerometers, Nader Khorzad
Masters Theses
"The purpose of this research was to calibrate an instrument with which an accelerometer could be calibrated accurately. The instruments used were a piezoelectric shaker and a modified Michelson interferometer together with necessary electronic equipment. This equipment was used to calibrate a Kistler Model 808A accelerometer.
Weight was added to the shaker in the second part of this experiment in order to determine its effect on the amplitude and frequency of oscillation of the shaker.
Results show that this instrument may be used to calibrate an accelerometer quite accurately. The weight added to the shaker will effect only the amplitude …
Error Analysis Of Rational Approximations Of Functions With Emphasis On Minimax Techniques, Mary Frances Good
Error Analysis Of Rational Approximations Of Functions With Emphasis On Minimax Techniques, Mary Frances Good
Masters Theses
"This study examines the various considerations which are made when a function is approximated by a rational function. None of the four approximations considered here gives both a rapidly calculated approximation and one in which the maximum magnitude of the error function over a given interval is a minimum.
The second algorithm of Remes produces a sequence of rational approximations which converge to the rational approximation that minimizes the maximum magnitude of the error function for a given number of parameters to be calculated if the initial approximation in the sequence is chosen properly. Several rational function approximations are investigated …
Fluid Flow In Pipes Of Rectangular Cross Sections, Bruce Harold Bradford
Fluid Flow In Pipes Of Rectangular Cross Sections, Bruce Harold Bradford
Masters Theses
"Head loss due to fluid friction was measured in smooth conduits of rectangular cross section. The data covers the laminar and turbulent range. Results were compared with previous theoretical and empirical data.
The customary practice of calculating head loss in non-circular conduits by use of the friction factor obtained on an “equivalent” circular pipe was discussed. It was found that this practice is successful in square cross sections undergoing turbulent flow. In laminar flow, however, this method is not accurate"--Abstract, page ii.
Geology Of The Acari Iron Mining District Arequipa, Peru, Raul Alejandro Zevallos
Geology Of The Acari Iron Mining District Arequipa, Peru, Raul Alejandro Zevallos
Masters Theses
"The Acari Iron Mining District, part of a tilted uplifted fault block, comprises an area about 300 square kilometers, in the southern part of the coastal belt of Peru. It is in the foothills of the western range of the Andes and it is dominantly formed by granodioritic and granitic intrusive rocks which belong to the Andean batholith of Cretaceous-Tertiary age. The intrusive rocks are overlain by a central, elongated, northwest trending band, of metasedimentary and volcanic rocks
The magnetite deposits of Acari district are long, dike-shaped bodies, which fill two systems of fractures in the granodiorite intrusive, located in …
Stable Predictor-Corrector Methods For First Order Ordinary Differential Equations, Terrell Lester Carlson
Stable Predictor-Corrector Methods For First Order Ordinary Differential Equations, Terrell Lester Carlson
Masters Theses
"Because of the wide variety of differential equations, there seems to be no numerical method which will affect the solution best for all problems. Predictor-corrector methods have been developed which utilize more ordinates in the predictor and corrector equations in the search for a better method.
These methods are compared for stability and convergence with the well known methods of Milne, Adams, and Hamming"--Abstract, page ii.
An Ac Method Of Measuring The Conductivity Of Dielectric Liquids., Henry E. Fischer
An Ac Method Of Measuring The Conductivity Of Dielectric Liquids., Henry E. Fischer
Masters Theses
"The problem undertaken in this thesis is the presentation of a method of measuring the conductivity of dielectric liquids in which the liquid is used as the parallel tank circuit of a modified Wien-bridge oscillator. The main advantage of this method is that the frequency of the voltage applied to the liquid can be varied by simply varying the oscillator frequency. This allows the selection of a frequency which is best suited to the liquid in regard to polarization and relaxation time.
An oscillator was designed, built and used in the laboratory to measure the conductivity of the dielectric liquids …
Analysis Of Time-Varying Linear Multipole Filters With Sampled Nonstationary Random Inputs, Ming-Chwan Chow
Analysis Of Time-Varying Linear Multipole Filters With Sampled Nonstationary Random Inputs, Ming-Chwan Chow
Masters Theses
"In this thesis an analytical method is developed to determine an optimum time-varying linear filter in order to satisfy the following specifications. The filters are of sampled data multipole form with n inputs and m outputs. The signal of each input is a member of a nonstationary random process, and the signal is corrupted by stationary noise.
The statistical optimization theory developed by Wiener is extended to a linear time- varying filter with nonstationary input. Correlation functions are defined for nonstationary ensembles. The mean- square error is calculated in terms of these correlation functions. By minimization of the mean-square error, …
Heat Flow In The Boss Deposit Of Missouri, Don Stainbrook
Heat Flow In The Boss Deposit Of Missouri, Don Stainbrook
Masters Theses
"Values of heat flow through a Precambrian mineral deposit were determined in the Boss area of Missouri, where 350 meters of Paleozoic sedimentary rocks overlie a complex series of rhyolite flows which have been altered and contain a copper bearing magnetite deposit. Geothermal data were obtained from a closely spaced grid of 17 diamond drill holes penetrating to depths of 1000 meters below ground surface. Temperature measurements were made at 5 meter intervals in the Precambrian section of all holes. These and thermal conductivity measurements made on representative core samples from 300 to 400 meters below the top of the …
A Periodic Dielectric Rod Antenna, Robert C. Peirson
A Periodic Dielectric Rod Antenna, Robert C. Peirson
Masters Theses
"The periodic dielectric rod antenna structure under consideration consists of identical dielectric rod sections of radius a meters situated on a common axis. These sections are of length 11 meters and are separated in free space by distance 12 meters.
Field analysis employing Floquet's theorem, in terms of the exemplary TM01 circular mode, gives expressions for the various field components and an eigenvalue equation. Digital solution of this eigenvalue equation establishes the location of propagation bands as a function of frequency. Such bands are characteristic of any periodic wave guiding structure."--Abstract, page ii.
A Method For Approximating A Specified Impulsive Response, Charles A. Gross
A Method For Approximating A Specified Impulsive Response, Charles A. Gross
Masters Theses
"Given a system's time response, y(t), to a unit impulse, a method is presented by which an approximating function y*(t) may be determined. It is inherent in the method that the transform function Y*(s) is rational. The poles of the approximating function are found from the coefficients of a difference equation, which is made to fit the given data in a least mean square error sense. The zeros are determined by a procedure based on the fact that at a given time the given function and its approximate derivatives are known. Accuracy and implementation of the method are investigated primarily …
Some Effects Of A Non-Uniform Specific Charge Upon Space Vehicle Parameters, Geary L. Leger
Some Effects Of A Non-Uniform Specific Charge Upon Space Vehicle Parameters, Geary L. Leger
Masters Theses
"An equation is derived for the space-charge-limited current of an ion beam when there exist n different species of ions in the beam. The combined effects of non-uniform specific charge and space-charge-limited conditions upon thrust, propellant flow rate, and payload ratio are studied, and a graphical investigation and interpretation is made.
This thesis will show that: (1) The existence of multiply ionized species in an ion beam will increase the space-charge-limited current over that expected in a beam composed of purely singly ionized ions, (2) the thrust produced by the ion beam is independent of the non-uniform specific charge distribution, …
Literary Criticism Of Shakespeare's King Lear, Daniel Lee Burcham
Literary Criticism Of Shakespeare's King Lear, Daniel Lee Burcham
Masters Theses
No abstract provided.
A Study Of Representative Critical Evaluations Of D. H. Lawrence's Sons And Lovers, Georgine Hawley
A Study Of Representative Critical Evaluations Of D. H. Lawrence's Sons And Lovers, Georgine Hawley
Masters Theses
No abstract provided.
Plant-Derived Pigments And Dyes Used By Artists, Samuel C. Rizzetta
Plant-Derived Pigments And Dyes Used By Artists, Samuel C. Rizzetta
Masters Theses
History
Uses of Biologically-derived Products in Painting
Throughout history man has relied heavily on plant-derived materials in the production of paintings. Plant products have been used to fulfill each of the material requirements of painting. The ground or surface upon which an artist applies paint -is usually of plant origin, such as woven fabrics and paper. The ancient Egyptians painted on canvas (from Linum usitatissimum L.), papyrus, (from Cyperus papyrus L.), and wood (Lucas, 1934:149-150, 201-203; Laurie, 1910:17, 31-32).
At the time of Theophilus leather parchment, preferably of horsehide, was popular for painting (Bazzi, 1960:13). After parchment, walls and wooden …
The Effect Of Instructions On Problem Solving Efficiency, Douglas Allen Webb
The Effect Of Instructions On Problem Solving Efficiency, Douglas Allen Webb
Masters Theses
No abstract provided.
The Calculation Of The Cross-Section Of The Interaction Between Two Yang-Mills Fields, Richard A. Starr
The Calculation Of The Cross-Section Of The Interaction Between Two Yang-Mills Fields, Richard A. Starr
Masters Theses
The Problem and Its Background
This thesis presents a study of the interaction between two arbitrary fields, named Yang-Mills fields1 for their originators. The basic equations for the calculations of the Yang-Mills interaction are due to modern quantum field theory and its specific application to quantum electrodynamics.2
Much useful information can be obtained from the formulation of the dynamical equations for a classical system: for example, the classical description of the electromagnetic field, based on Maxwell's equations, leads to wave concepts. Then using this formalism as a starting point, one can proceed to the quantum theory of free …
The Orientation And Mobility Needs Of Blind Youth In A Highly-Impacted Metropolitan Area, Lawrence E. Blaha
The Orientation And Mobility Needs Of Blind Youth In A Highly-Impacted Metropolitan Area, Lawrence E. Blaha
Masters Theses
Introduction
Mobility enables man to interact with his surroundings, and to influence his environment as well as to be influenced by it. The need for the blind individual to relate himself to his environment has been the motivation for the development of orientation and mobility instruction.
While orientation and mobility for the blind is a relatively new discipline, the systemic use of basic techniques, i.e. hand-and-arm techniques and the use of long, light, functional cane as a mode of travel, has been validated empirically with more than a thousand blinded adults. These techniques have also been used successfully with blind …
Phase Shift Analysis Of Protons Elastically Scattered By 016 Near EP = 8.3 Mev, Glenn D. Westin
Phase Shift Analysis Of Protons Elastically Scattered By 016 Near EP = 8.3 Mev, Glenn D. Westin
Masters Theses
Chapter I
Introduction
The study of the resonances in the scattering cross section of the p + O16 reaction can reveal information regarding the energy levels of the compound nucleus F17. The analysis is simplified because of the zero spin of the O16 nucleus. Also, the low binding energy of the proton added to O16 allows examination of the low-lying energy levels in F17.1 The reaction has been intensively investigated at the University of Wisconsin in a series of experiments using an electrostatic accelerator as a source of protons.
The Preparation Of 5-Arylazopyrimidines, Frederic Edwin Dutton
The Preparation Of 5-Arylazopyrimidines, Frederic Edwin Dutton
Masters Theses
Introduction
The synthesis of 5-arylazopyrimidines was undertaken in search of potential anticancer agents.
While many azo compounds have carcinogenic activity, it has been shown by several workers in this area that some 5-arylazopyrimidines have anticancer properties. S. Hibino(1) has shown that p-(2,4,6-triamino-5-pyrimidinylazo) benzene-sulfonic acid shows promise as an effective anticancer agent when used in conjunction with 6-mercaptopurine and adrenal steroidal hormones. When tested clinically, total remission of the leukemic process was achieved in 85.7% of the cases treated. In comparison, total remission was achieved in only 57.5% of the cases treated with a mixture of 6-MP and the hormone which …
The Reaction Of Metal Hydrides With Azoacetates, Thomas H. Althuis
The Reaction Of Metal Hydrides With Azoacetates, Thomas H. Althuis
Masters Theses
Introduction
The term aliphatic azo compound refers to those azo compounds in which at least one of the two nitrogen atoms is linked to a tetrahedral, that is, sp3 -hybridized carbon atom. Di-imides, RN=NH, however, are not being considered. Mixed aliphatic-aromatic azo compounds are those in which one nitrogen atom is linked to an sp3 -hybridized carbon atom and the other to an aromatic sp2 -hybridized carbon atom. If present, a symmetry element (point or plane) is determined by the mid-point between the two nitrogen atoms.
Sensory Interaction: Employing The Forced Choice Psychophysical Method To Study The Effect Auditory Stimulation Has On Visual Sensitivity, Reuben Kamper
Masters Theses
No abstract provided.