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Pesticide Residues In The Illinois Wild Turkey, John M. Bridges

Masters Theses

Adipose tissue from 55 turkeys, killed during the 1974 hunting season in southern Illinois, was grouped by age and location of the birds, and the pesticide concentrations in them were determined by gas/liquid chromatography. Twelve different pesticides were identified in the samples with only four, total DDT, heptachlor epoxide, toxaphene, and linuron, being present in all samples. Concentrations ranged from 0.02 ppm to 0.88 ppm.

Survey Of Qualification Of Employed Machine Trade Teachers In Illinois, Henry Graham

Masters Theses

No abstract provided.

The Status Of Beaver In East Central Illinois, Kenneth Edward Snearley

Masters Theses

Parts of three major streams in east central Illinois: the Embarrass, the Kaskaskia and Okaw Rivers were cruised during the fall of 1973 and the summer and fall of 1974. Beaver (Castor canadensis) sign were located and recorded. A qualitative analysis of the woody vegetation on the Kaskaskia and Okaw Rivers was undertaken.

Two activity sites were located on the Embarrass. Three fresh and three old cutting sites were located on the Kaskaskia in 1973; in 1974, five fresh sites were found. The Okaw had six fresh and six old cutting sites in 1973, but in 1974, only …

An Intercorrelation Analysis Of The Itpa And Feature Finders, Debra Betts Bork

Masters Theses

No abstract provided by author.

Aquatic Plant Communities Of Vermilion County, Illinois, John A. Wiedman

Masters Theses

No abstract provided.

An Investigation Of Receptive And Expressive Pluralization And Tense Inflectional Skills Of Three Year Old Children, James Michael Coffman

Masters Theses

No abstract provided by author.

An Analysis Of The Death-Rebirth Archetype In John Donne's "Songs And Sonets", Eva Diane Fletcher

Masters Theses

No abstract provided.

Survey Of The Organizational Patterns Of Library Media Centers Of Public Senior High Schools In Two Selected Regions Of The State Of Illinois, Carrie Chen

Masters Theses

No abstract provided by author.

Analysis Of The Stresses Induced In Rock By Rock Splitters., Diogenes De Jesus Chollett

Masters Theses

"The method of solution of the problem of determining the stress and displacement distributions around an unfractured circular hole subjected to nonuniform applied internal pressure located in an infinite plate is developed. Two problems are solved for two different representative boundary conditions. The problem of determining the stress distribution around a circular hole with two symmetric radial cracks subjected to nonuniform applied radial pressure located in an infinite plate is analyzed and developed for further solution"-- Abstract, p. ii

A Unit Hydrograph For The Missouri Ozark Region., Melvin G. Schaefer

Masters Theses

"Eleven small watersheds from the Missouri Ozark region are used in generating a synthetic unit hydrograph. The analysis is composed of three parts: First, a prediction equation is developed which correlates the time lag parameter with the physical features of the watershed. Second, an equation is developed which predicts the peak flow ordinate for 30-, 60- and 120-minute unit hydrographs. Third, an average dimensionless unit hydrograph is determined"-- Abstract, p. iii

Theoretical And Experimental Investigation Of A Viscous Ring Nutation Damper., Roy Alexander Campbell Iii

Masters Theses

"The dynamics of passive dampers applied to high s peed gyro systems is reviewed briefly and the partially filled viscous ring nutation damper is investigated. Particular attention is given to 1 the broken ring or nutation synchronous configuration where the fluid moves as a rigid slug and the damping is greatest. In this mode the damping is assumed to be viscous and expressions for a linear damping constant are presented. Data from an experimental, high-speed gyro is used to verify the theoretical analysis"-- Abstract, p. 1

A Strategic Planning Model For Implementing Community Development Block Grant Programs., John M. Lang

Masters Theses

"As problems of metropolitan areas have multiplied, the federal government has been drawn into an ever-increasing intimate funding association with city governments. Although federal funding for ii urban problems may have been considered a panacea by some, most local government agencies have now discovered that their problem has shifted in emphasis from where to find funds to that of meeting federal standards and requirements of application in order to get the funds.

The impact of federal programs on local government management is evident in the recently enacted federal Housing and Community Development Act of 1974. Title I of the act …

A Study Of Middle To Late Quaternary Sediments In The Karst Trap., David Lewis Rath

Masters Theses

"Quaternary deposits preserved in a karst trap on the Lebanon uplands a e described. The sediments represent the Yarmouthian, Illinoian, Sangamonian, and Wisconsinan Stages. The karst trap is pre-Yarmouthian in age. The lowermost deposit consists of residual fill material on which lies a well-developed Yarmouth paleosol. During the Illinoian Stage about 61 cm (2 feet) of Loveland loess was deposited over the area. Toward late Illinoian conditions favoring erosion rapidly filled the closed system, stripping the loess and reducing the residual slopes. The system stabilized during the Sangamonian Stage allowing for a thick, strong Sangamon paleosol to deve lop on …

The Influence Of Oxygen Activity On Sintering Of Strontium Doped Lanthanum Chromite., Leslie Groupp

Masters Theses

"The influence of oxygen activity upon the sintering of lanthanum chromite (La_1-xSr_x CrO₃) with x ranging from Oto 0.2 was investigated using chemically prepared powders of <0.1 microns particle size. The results show that at a temperature of 1740 ° C densities of >92% of theoretical could be achieved if the oxygen activities were maintained in the 10^-11 to 10^-12 atm. range. If oxygen activity exceeds 10^-10 atm., densities of not >80% theoretical could be obtained. For the compositions studied, room temperature X-ray analysis of both the starting powders and sintered compacts show the compositions to be orthorhombic and single phase. The ambient lattice parameters and resistivity measurements decreased …

An Experimental Study Of Mass Transfer To Droplets In Aqueous Polymer Solutions., Richard Gerard Schafermeyer

Masters Theses

"Instantaneous and time-average mass transfer coefficients for 1 the free-fall period was obtained for transfer of iodine from nonNewtonian continuous phases to carbon tetrachloride drops. The nonNewtonian continuous phases were aqueous solutions of carboxymethyl cellulose and carboxy polymethylene. Although a few exceptions were found, the continuous phase mass transfer coefficients were, in general, found to decrease with increasing time of drop contact. Comparisons of the experimental data to theoretical relations showed that changes in drop internal circulation probably occurred for that data which showed a time effect for the mass transfer coefficient. Several explanations for the time effect were offered, …

Computer Simulation Of Radiation Effects In Fe₃Al By Using Alternating Direction Implicit Numerical Techniques., Dean Lewis Tibbitts

Masters Theses

"An analysis was conducted to see if the alternating direction implicit (a.d.i.) numerical technique could be applied to a many-body dynamical radiation damage model.

The computer program which resulted was named ADI. It was numerically stable for small time steps used in conjunction with low ev knock-ens. It was also able to relax the a toms in the system simultaneously in the implicit direction. However, an existing explicit computer code, which was to be replaced by ADI, proved to be more numerically stable and about 40% faster"-- Abstract, p. ii

A Study Of Stability Of Ac And Dc Transmission Lines Operated In Parallel., Tzyy-Cheng Wang

Masters Theses

"This thesis is concerned with the analysis, optimization and simulation of parallel operation of ac and de transmission lines.

An introduction and literature review are provided to give background information on how the parallel operation should be considered. The parallel system is analyzed, and the state equation is derived for determining the stability limit. The optimization of the control law U = Fx is determined by a standard quadratic cost function. Prefault, during fault and postfault situations in the parallel operation has been simulated by Continuous System Modeling program. Some comparison and comments are made between 1 ac, 1 de …

Computational Models Of Learning., Kenneth Jesse Marse

Masters Theses

"An investigation is made into the use of techniques which would normally be described as learning if encountered in a human being. A literature review of several subject areas including game-playing computer programs, automatic control systems, pattern recognition methods, and biological modeling is performed, with the purpose of extracting and examining those processes which exhibit learning. A general model of the type of learning most widely utilized in these areas is constructed and used to compare and contrast specific models which describe the learning techniques employed. Some specific models which do not exhibit learning as described by the general model …

Heavy Metal Contamination In Soil Around A Lead Smelter In Southeast Missouri, David Lewis Butherus

Masters Theses

"In order to determine the extent of possible heavy metal contamination, more than 963 samples of leaf litter and soil were collected from 410 sample stations around the AMAX smelter in southeast Missouri. Dried samples of leaf litter and minus 80 mesh soil fractions were analyzed for cadmium, copper, lead, and zinc by atomic absorption spectrophotometry. Minus 80 mesh soil fractions were also analyzed for sulfur using x-ray fluorescence methods. Ranges of heavy metal concentrations in leaf litter were: cadmium, 0.13 μg/g to 175 μg/g; copper, 4.2 μg/g to 6500 μg/g; lead, 50 μg/g to 130,000 μg/g; and zinc, 26 …

An Analysis Of A Network Of Finite-Queue, Multiple-Server Facilities., Juanita Kaye Shukers Grau

Masters Theses

"An algorithm for listing all possible steady states and for generating the transition matrix for a series of finite-queue, multiple-server facilities is described. This algorithm is compared to a previously developed one. The new algorithm is better since it works for multiple servers and does not require an extra pseudo-facility. Using the list of states and the matrix generated by the new algorithm, exact steady state probabilities can be calculated. Then the probabilities can be used to obtain system statistics which cannot be calculated otherwise"-- Abstract, p. ii

A Study Of Product Inhibition In The Reaction Of P-Nitrophenyl- Α - D - Glucoside Catalyzed By The Enzyme Glucoamylase I., Mark L. Dickhaus

Masters Theses

"The entire time course of the hydrolysis of p-nitrophenyl-a-D-glucoside by the enzyme glucoamylase I was followed spectrophotometrically. Using time versus absorbance data the constants in the Michaelis-Menten equation were determined. The effect of the addition of product to the initial reaction mixture and the effect of solvent and temperature were determined. It was found that product produced during the reaction did not have the same effect upon the rate as did product added initially to the reaction mixture. The presence of substrate caused the enzyme to acquire protection against inhibition by the product"-- Abstract, p. ii

Vapor Pressures For The Ternary System 1-Butene, Isobutane, And 1, 3-Butadiene., Kevin Steele

Masters Theses

"An innovative apparatus suitable for the rapid but accurate measurement of vapor pressures of liquid solutions is described. Liquid solutions of known composition are prepared in a test cell by volumetric metering of degassed liquids. The operation of the apparatus is feasible over a wide range of temperature and pressure, producing data with an estimated probable error of ± 0.05 percent. Experimental P-X data for a system of C₄ hydrocarbons (1-Butene, Isobutane, and 1,3- Butadiene) are reported from 40-160 degrees Fahrenheit. The data are in agreement with the literature, and vapor pressures are expressed as a function of temperature …

Performance Evaluation Of Linear Systems Using The Fast Fourier Transform., Larry Leonard Lamano

Masters Theses

"In order for a computer simulation of a communication system to yield useful and meaningful results, a method for determining system performance is often essential. The computer postprocessor, described in this thesis, allows accurate determination of the mean-square-error induced by the system being simulated and the noise power at any point in the system.

Measurements of the mean-square-error induced by a system due to amplitude distortion, phase distortion, and amplitude and phase distortion, along with measurements of the power in a Gaussian noise waveform are performed. The values obtained using simulation are compared to the corresponding theoretical values in order …

A Study Of The Effects Of Numerical Error Propagated Through Several Independent Stages: An Electron Optics Simulation., William Donald Webster

Masters Theses

"Presented is a study, combining numerical methods in a series of stages whereby each stage provides input data to its successor. A model problem from electron optics ii is studied in which a potential field is computed, gradient vectors calculated, and trajectory equations solved. Error effects in each stage is assessed for its influence on the final results of the numerical process mimicking the model problem. Error analysis is given in Appendix A. Finally, the superiority of Spline approximations for estimating derivatives is demonstrated"-- Abstract, p. ii

Reflected Surface Waves From A Vertical Discontinuity., Jesus Manuel Aboud

Masters Theses

"Surface waves generated in the field by small explosions were observed along lines parallel and perpendicular to a vertical discontinuity in a surface layer. Three types of wave particle motion were observed in waves incident on the discontinuity: retrograde, progressive, and shear (SH). Waves of the last two types were intense enough to observe a reflection, permitting calculation of reflection coefficients. The results demonstrate the feasibility of using reflection measurements to locate a discontinuity such as a fault zone"-- Abstract, p. ii

A Study Of Several Substitution Ciphers Using Mathematical Models., Wanda Louise Garner

Masters Theses

"This paper will consider vector and matrix representations for several polyalphabetical substitution ciphers. Classical ciphers such as the Vigenère, the True Beaufort, the Variant Beaufort, and the autokey will be included. We shall also discuss ways to mathematically vary a substitution cipher. In addition, we shall employ our mathematical representations to decipher a fixed matrix substitution cipher"--Abstract, p. ii

A Study Of Trace Organics And Trace Organic-Bound Metals In Raw And Finished Waters., Robert Lee Stewart

Masters Theses

"The main objectives of this study were: (a) to prepare a comprehensive review and evaluation of the literature pertaining to trace substances, with emphasis on their status in water supplies, health effects, and fate in treatment; ( b) to establish the methodology needed for measuring trace metals in trace organic substances; and (c) to determine the metal content of organic extracts recovered from surface, subsurface, and finished waters.

Raw and finished water was obtained at the Sedalia, MO, water treatment plant, and 5 sources were sampled (3 surface, 1 well, 1 plant-treated). The 0-CA* and SEM procedures were employed to …

Image Detection In Signal Dependent Noise., Robert D. Laramore

Masters Theses

"This thesis deals with the detection of two-dimensional signals in the presence of noise, including signal dependent noise. The object to be detected and the background are assumed known a priori. A decision rule based on a likelihood ratio test is obtained and the associated probabilities of detection and false alarm are evaluated. This is done first in general terms, where neither the form of sampling nor the model used for noise is specified. Then results are obtained for three examples: Poisson noise, signal dependent Gaussian noise, and binomial noise. Finally, the degradation resulting from a point spread function is …

The Spheriodization Of Tool Steels., Siri Ram Rai

Masters Theses

"Four different tool steels--AISI 01, Sl, A9 and Tl5--were obtained in the 1/2-inch diameter hot rolled and air-cooled condition from the steel mill. The lower critical temperatures of these steels were determined. The spheroidization of each steel by three different spheroidizing procedures was evaluated with the use of hardness testing and metallographic techniques. Isothermal annealing completely spheroidized each steel yielding coarse carbides and low hardness. Cyclic annealing was an effective spheroidization procedure only for 01 and Tl5 steels. Hardening and tempering resulted in rather fine spheroidized structures in these steels. The total time consumed to produce the best spheroidized structures …

Wastewater Treatment With Activated Carbon., Chia-Soui Joseph Lu

Masters Theses

"The objectives of this study was to determine the capabilities of selected types of activated carbon as an adsorbent for the removal of organic materials from municipal wastewater and sludges. The organic sources included primary and secondary clarifier effluent, blended sludge, and digester supernatant. Two other organic sources, glucose and alanine, were also examined to determine their removal from aqueous solution by activated carbon adsorption.

The organic impurities, in terms of chemical oxygen demand (COD), were reduced from 68 mg/1 in the primary effluent and 35 mg/1 in the secondary clarifier effluent to approximately 15 mg/1 for both. However, the …