Digital Commons Network^™

Studies Of Neutron Capture Produced Rare Gas Isotopes In Rocks And Minerals Containing Chlorine, Selenium And Tellurium, David E. Sinclair

Masters Theses

"Noble gas mass spectrometry was used to study rare nuclear processes in terrestrial rocks and minerals. An excess of ³⁶Ar was detected in a chlorine-rich rock. The excess ³⁶Ar has been produced in rocks near the earth's surface due to capture of cosmic-ray-produced neutrons on ³⁵Cl. Measurement of ³⁶Ar formed by the ³⁵Cl(n, γ)³⁶Cl(β^-)³⁶Ar process makes possible a new method for determining the surface residence time of chlorine-rich minerals

Excess ⁸²Kr and excess ⁸³Kr were detected in selenium-rich ores. The excess ⁸²Kr results from double beta …

An Engineering Analysis Of Fluid Amplifiers And Development Of An Air Velocity Sensor, Gian Sagar Aneja

Masters Theses

"Fluidics, the new control technique finds its use amongst the conventional electronics and pneumatics due to some of its impressive features. Selected literature about bistable and proportional amplifiers has been presented for better understanding of the element behavior. Sensors; typical applications of fluidics have been described separately. An air flow velocity sensor has been set-up. Basically it consists of a cylinder placed across the air flow that sheds vortices in the wake due to 'Von Karman Vortex Street' phenomenon. The frequency of vortices gives a measure of velocity. The velocities obtained from the sensor have been compared to the ones …

A Study Of Thoracic Skeletomusculature In Peracarida (Crustacea), Donna R. Gill

Masters Theses

Two species of peracarid malacostracans, a mysid, Neomysis americana, and an oniscid isopod, Trachelipus cf. rathkei, were used to study the skeletomusculature system. Serial sections, whole mounts, and gross dissections were made. Coxal promotors and remotors and basal adductors and abductors were the muscle groups examined.

The promotor and remotor muscles of N. americana were found to be numerous, well developed, taking origin primarily from the dorsal thoracic wall, and extending nearly ventrally to insert in the coxa; the adductor muscle and two abductor muscles are weakly developed. The coxa in T. cf. rathkei is incorporated completely …

Psychological Bases For Children's Preferences For Picture Sequences, Charlotte A. Kingery

Masters Theses

No abstract provided by author.

Some Observations On Drawing Facial Expression, Pamela Fae Slater Uptmor

Masters Theses

No abstract provided.

The Illinois Indian Trade 1783-1818, Dennis Downey

Masters Theses

No abstract provided.

A Comparative Study Of The Systems Approach To Teaching And Learning And The Traditional Approach To Teaching And Learning As Applied To Art Education, Thomas R. Littrell

Masters Theses

No abstract provided.

Edvard Munch: Motifs And Motivations, Gordon Moffett

Masters Theses

No abstract provided.

The Influence Of Age And Disease Upon Language, Mary Ellen Kelleher

Masters Theses

No abstract provided by author.

Physiological Bases Of Children's Preferences For Picture Sequences, Elizabeth A. Hipskind

Masters Theses

No abstract provided by author.

Cross-Validation Of The Length-Complexity Index Screening Form, Shari A. Galloway

Masters Theses

No abstract provided by author.

A Study Of The Reading Program In West Richland Elementary School At Noble, Illinois, Robert L. Phillips

Masters Theses

No abstract provided.

A Report On The Preparation And Publication Of A Student-Parent Handbook For Oakview Junior High School, District #122, New Lenox, Illinois, Robert K. Jenkins

Masters Theses

No abstract provided.

A Comparative Study Of Student Assistant Training Programs In Colleges And Universities, Jurel Deshazer Jackson

Masters Theses

No abstract provided.

A Self Evaluation Of Men And Women Resident Assistants Of Eastern Illinois University And A Comparison Of Their Recognized Interactions With Hall Residents, Doris Dunkirk Enochs

Masters Theses

No abstract provided.

A Study Of Health Education In The Public Schools And Community Of Tomah, Wisconsin, Bernita Helen Wildes

Masters Theses

No abstract provided.

The Politics Of Henry Fielding: A Whig Journalist And Essayist, Martha Ann Klestinski

Masters Theses

No abstract provided.

The Effects Of Institutionalization Upon The Self Conceptions Of Nursing Home Residents, Jack D. Nelson

Masters Theses

No abstract provided.

An Empirical Investigation Of Selected Stock Issues In Debate Evaluation, Bill Waggoner

Masters Theses

No abstract provided.

An Experimental Study Of The Effect Of Long Hair Worn By Males Upon Immediate Recall In The Classroom Situation, Edward George Sutter

Masters Theses

The appearance of the orator has been a concern of rhetoricians since the classical era. A review of contemporary literature revealed that authors in the area of communication still include theories regarding particulars of effective speaker appearance in their writings. Although authors of speech texts have become prescriptive in their directives of grooming, today’s theoretical preference for short hairstyles in educational speaking contexts has not been quantitatively tested. Therefore, this investigation was designed to experimentally assess the effects of the introduction of longer hairstyles in the classroom situation upon student’s immediate recall.

On hundred twenty-nine students enrolled in eight sections …

The Effects Of Leader Presence And Moderate Stress Upon Small Group Sentiment And Interaction, Ray Lewis Cordon

Masters Theses

The purpose of this investigation was to determine the effects of leader presence and moderate stress upon sentiment and interaction in small groups. Seventy-four students were selected from the required speech course at Eastern Illinois University to serve as subjects. These subjects were assigned to sixteen groups, ranging from four to five members per group.

Silent and absent leadership, imposed stress and no stress were introduced to the groups through a 2 X 2 factorial design. In one condition (N = 18) the group leader provided instructions and then remained silent during group interaction, and moderate stress--an announced time barrier--was …

Squillites Spinosus (Syncarida, Malacostraca) And A New Unnamed Crustacean From The Mississippian Of Central Montana, Joan Matthews Rumore

Masters Theses

A Mississippian syncarid from the Heath shale, Squillites spinosus Scott, 1938, is redescribed and a discussion of some aspects of Syncarid phylogeny is given. Modern Syncarid biogeographical distribution is discussed and an analysis of these zoogeographical patterns is provided. A strange animal, Crustacea (incerta sedis) from the Heath shale is described in as far as is possible.

In 1971, Dr. Richard Lund of the University of Pittsburgh while searching for fossil fish in the Upper Mississippian Heath Shale of Montana found the associated remains of fossil crustaceans. Two locations were involved, T14 N R20E sec. 28, Fergus County, Montana, 2 …

The Effects Of Desoxycorticosterone, Hydrocortisone, And Prednisone On Myogenesis In Vitro, Gregory K. Nienaber

Masters Theses

In order to obtain proper muscle development in tissue culture, certain conditions must prevail. There is a delicate balance of factors, and elimination of even one of these factors leads to poor and improper development. Muscle cells grown in the absence of fibroblasts usually fail to differentiate. Therefore, proper development depends upon the presence of two cell types: myoblasts and fibroblasts. Investigators have demonstrated that the fibroblasts are necessary in that they produce collagen which is necessary for proper muscle development. The present study has shown that desoxycorticosterone, hydrocortisone, and prednisone at concentrations of 10, 1, and 0.1 ug/ml of …

A Comparative Analysis Of The Mechanical Engineering Technology Curriculum As Offered In The Community Colleges Of Illinois, Richard William Koppitz

Masters Theses

No abstract provided by author.

Performance Comparison Of Receivers Designed To Combat Intersymbol Interference Due To Specular Multipath, George H. Smith

Masters Theses

"Bit error probabilities for biphase transmission have been computed for a known two-component multipath channel with a variety of suboptimum receivers. Performance curves are presented for each receiver, and the relative performance is summarized. Degradation due to imperfect channel knowledge is calculated, and the feasibility of countering this interference with these specially designed receivers is discussed"--Abstract, page ii.

Digital Registration Of Stereo Images Using The Fast Fourier Transform, Victor Francis Wilreker Jr.

Masters Theses

"The exact alignment of multispectral imagery is a requirement of any image classification system. This investigation develops a system of programs which result in a technique that corrects for the translational and rotational misalignment of two images. Rotational and translational components are determined by using the fast Fourier transform to find the points of maximum correlation between the two images. The registration of two equal but misaligned boxes is given as an example of how the transform technique is used in correlating the images. The results of registering two digitized images that were obtained by scanning a pair of color …

Computer-Aided Circuit Optimization Including The Adjoint Method Of Calculating Network Sensitivities, John Walter Olson

Masters Theses

"A complete discuss ion of the optimization of a circuit, including modeling and programming difficulties encountered, is presented. A three transistor bandpass filter is used in order to study various methods of optimization. The adjoint method of calculating the network error gradient vector is compared to the perturbation method. The adjoint method proves to have decided advantages over the other method. A generalized computer program is presented to carry out the Fletcher-Powell optimization algorithm with specialized subroutines which include a network equation solver and both methods of finding the gradient vector. The program proved very effective in realizing a desired …

Data Compression Design Considerations For Airborne Test Vehicles, Kenneth Carlyle Pittman

Masters Theses

"The design goals for a data compression system are developed using previous studies as a cornerstone. Sampling theory is touched on with qualitative coverage of its effects. Consideration is given to various methods of data compression with the advantages and disadvantages of each noted. The requirement for buffering is discussed along with various methods that may be employed to achieve specific buffering goals. The impact of data reconstruction and how it may affect the choice of compression techniques is briefly covered. Selected compression algorithms and ways of increasing system effectiveness through alterations to their basic structures are described in detail. …

A Study Of Fmfb Demodulator Operation In The Presence Of Radio Frequency Interference And Gaussian Noise, Terry D. Wormington

Masters Theses

"A digital computer model of an FMFB demodulator has been used to study the effects of radio frequency interference on the detection of a sinusoidally modulated carrier. The effectiveness of selecting the feedback factor to suppress the interference for three values of modulation index is investigated. Also, the required IF bandwidth for the minimization of the mean-square error of the loop output between a signal corrupted by interference and the same signal without interference was investigated. More work is required before the effects of Gaussian noise plus interference on loop operation can be ascertained"--Abstract, page ii.

Analysis Of A Substitute For The Impact Damper To Damp Near-Resonant Mechanical Vibrations, Nguyen Khanh Van

Masters Theses

"This report investigates a substitute for the impact damper which, although highly effective in reducing vibration amplitudes of near-resonant mechanical systems, in operation causes often unacceptable intensive noise. The present damper consists of a piston free to move in a cylinder, at either end of which is a ball valve set to open at a preset pressure, and in the middle along its length an intake port. An approximate analytical study is made to determine the conditions for the existence of "noiseless periodic operation" of the damper, periodic operation without the occurence of impacts. This approach is based on the …