Digital Commons Network^™

A Purchase Estimator For Oil And Gas Reserves, Ronald Ernest Robbins

Masters Theses

"A computerized means for analyzing the profitability and purchase potential of producing oil and gas properties was developed. LOTUS 1- 2-3, a computerized spreadsheet package, was utilized in this development. The basic input data required for the implementation of the purchase estimator (BUYOUT) are the forecasts of production, price, and expense. BUYOUT itself is composed of three separate, but interactive, parts: and the system macro. the profitability model, the acquisition table,

A before federal income tax cash-flow model and several economic indicators constitute the profitability model. The profitability model is then fully interactive with an acquisition table which contains six …

Electron Transitions In Multiply-Charged Ion-Helium Collisions, M. Lou Mckenzie

Masters Theses

"A classical model for He using the Classical Trajectory Monte Carlo method is developed to study multiply charged ions colliding with He at intermediate energies. Reactions studied are single and double electron capture and ionization and electron capture-ionization for projectile charge states q = +1 to +50. The dominant collision process is single ionization. Charge exchange is found to be a two-electron process, where one electron is ionized and one is captured by the projectile. We find our calculations to be in good agreement with available experimental data, supporting our interpretations of the collision mechanisms"-- Abstract, p. iii

Genesis Of An Expert System For Umr Degree Auditing, Ruth Sue Dare

Masters Theses

"This paper describes the features, design, and development of an expert system for degree auditing at the University of Missouri--Rolla. It summarizes artificial intelligence as it is known today while specifically addressing expert systems. It describes selected expert systems currently in existence.

The present audit procedure utilized at the University of Missouri--Rolla is discussed. A description is given of the design and development of an expert system, written in LISP, to conduct a degree audit. Finally there are concluding remarks which include an analysis of the system and a discussion of possible system enhancement"--Abstract, page ii.

Conductivity And Photoconductivity Mechanisms Of Iron And Magnesium Doped Lithium Niobate, Joseph Francis Kirchhoff

Masters Theses

Various compositions of lithium niobate crystals were observed to have an electrical conductivity given by 2.3 x 10³ exp(-1.21/kT) Ω^-1 m^-1 between 200 and 3 15°C. This implies that in this temperature range, all such crystals exhibit comparable carrier concentration and mobility. A model based on intrinsic conductivity is presented which adequately agrees with experiment. In addition, a model is presented by which electronic photoconductivity can be predicted by evaluating the trapping cross-section associated with Fe³⁺ ions dependent upon their lattice sites"-- Abstract, p. ii

Mica: Prototyping An Expert System Consultant, Joseph Howard Marchal

Masters Theses

"The United States, as the world's largest producer and consumer of scrap and flake mica, has an obvious economic interest in applications of artificial intelligence technology that would expedite beneficiation of mica. In the fall of 1985, personnel of the Tuscaloosa and Rolla research centers of the Bureau of Mines and of the University of Missouri--Rolla, Institute for Artificial Intelligence started the following long term research project: Develop an Expert System Consultant for the three basic stages of mica beneficiation: Stage 1: characterization of the material; Stage 2: treatment to obtain a concentrate; and Stage 3: evaluation of the resulting …

Experimental Investigation Of The Effect Of Geological Discontinuity Conditions Of Rock Splitting By Blasting, Shijie Qu

Masters Theses

"A series of modal scale, two borehole splitting test blasts was geometrically designed both with concrete and with Plexiglas. The discontinuities were all symetrically located midway between split holes and were oriented perpendicular to the desired split plane. Sand and clay filled discontinuities of 1/16, 1/8 and 1/4 inch width, and closed discontinuities were used. Both discontinuity frequency and width generally reduced the maximum successful split-hole spacing. The regularity and integrity of the split profile became poorer as the discontinuities were closer to the boreholes and the discontinuity width became greater, due to the cratering effect which occurred from the …

The Homodyne Interferometer And Its Use In Finding The Optical Properties Of Graphite, Steven Randle Frey

Masters Theses

"An interferometer based on the principle of homodyning can be used to measure the reflectance of solid samples at microwave frequencies. These measurements provide the low frequency values needed for a Kramers-Kronig analysis. This analysis yields the complex dielectric function, e₁⁺ ie₂, and complex index of refraction, n + ik, of the solid. 2 This interferometer was tested on a pressed pellet sample of powdered Dixon 200-10 graphite and yielded satisfactory results. Also investigated were two different methods of signal modulation: mechanical chopping and a rotating wire grid polarizer" Abstract, p. ii

Electrochemical Studies Of Transition Metal Carbonyls, Dwayne Edward Cooper

Masters Theses

The electrochemical oxidation of (OC)₅MP-PM'(CO)₅ (M=Cr, Mo, W; M'=Cr, Mo, W; M=M' or M≠M'; P-P=Ph₂PCH₂CH₂PPh₂) and the reduction of the oxidized products in a 0.1 M tetrabutyl-ammonium perchlorate methylene chloride solution at a platinum disc working electrode with a Ag/AgCl reference electrode have been studied. The number of electrons in the oxidation step was determined by comparison with the one electron oxidation of ferrocene which had a peak potential at +0.15 V.

The cyclic voltammograms of the homobimetallic and heterobimetallic complexes display two general chacteristics: quasi-reversible or irreversible one …

Synthesis Of Phosphine Trans-Substituted Derivatives Of Iron Pentacarbonyl, Karl Heinz Hecker

Masters Theses

The synthesis of trans-Fe (CO)₃(PR₃)₂ (PR₃ = PPh₃, PPh₂Me, PPh₂CHCH₂, P(c-C₆H₁₁)₃, P(n-C₄H₉)₃, PPh₂H) can be achieved by refluxing iron pentacarbonyl under reducing conditions in the presence of ligand in 1-butanol. Addition of iron pentacarbonyl to a 1-butanol solution of sodium borohydride at room temperature results in a quantitative conversion of the iron carbonyl complex to the corresponding mononuclear formyl complex. Upon heating the initially formed formyl species decomposes to form the …

Syntheses And Electrochemistry Of Monosubstituted Carbonyl Complexes Of Low Valent Ruthenium, Nor Azowa Ibrahim

Masters Theses

The reactions of Ph₂MeP and PhMe₂P with (PPh₃)₄RuCl₂ yield (PPh₂Me)₄RuCl₂ and (PPhMe₂)₄RuCl₂, respectively. These complexes have been shown by conductivity studies to be dissociated in acetonitrile and exist as [(PPh₂Me)₄RuCl(CH₃CN)]Cl and [(PPhMe₂)₄RuCl(CH₃CN)]Cl. When carbon monoxide was bubbled into these solutions, monocarbonyl complexes were obtained. Elemental analyses, ¹H NMR, ³¹P NMR, infrared spectroscopy, conductivity measurements, and polarography were used to analyse the products, (PPh₂Me)_{2 …}

Enhancement Of Ether Cleaving Reactions By Intramolecular Hydrogen Bonding, Nobumi Takemura

Masters Theses

Rate constants of cleavages of fourteen alkyl-aryl ethers with HI, KI, or LiI in pyridine at 50-150°C were determined under pseudo first order conditions. The following ethers which have a six-membered ring intramolecular hydrogen bond underwent a bimolecular nucleophilic displacement by iodide ion in pyridine: 8-methoxy-1-naphthalenol, 8-ethoxy-1-naphthalenol, 2-methoxybenzoic acid, and 2-hydroxybenzyl methyl ether. The following ethers which lack a six-membered ring hydrogen bond were not cleaved or underwent cleavage slowly compared with the hydrogen bonded compounds: 1,8-dimethoxynaphthalene, 1,8-diethoxynaphthalene, 1-methoxynaphthalene, 4-methoxybenzoic acid, methyl 2-methoxybenzoate, 2-methoxybenzyl methyl ether, and 4-methoxybenzyl methyl ether. The pattern of ether reactivity indicated that a six-membered ring …

The Establishment Of Sequenced Skills In Language Arts, Reading, And Mathematics For Grades K Through 6 Of The Hoopeston-East Lynn Public Schools, Chalmers E. Flint

Masters Theses

Statement of Purpose

The purpose of this field study was to establish a list of sequenced skills for grades kindergarten through six for language arts, reading, and mathematics. Furthermore, a need existed for the evaluation of student/classroom progression in the mastery of skills. Therefore, this study consisted of the following two tasks: (1) Development of a list of sequenced skills which are to be utilized in conjunction with objectives that are located within the textbook of each subject area. (2) Development of a record keeping process to monitor students’ academic progress of skills mastered within language arts, reading, and mathematics …

Attitudes Of Preservice Elementary Teachers Toward Science And The Teaching Of Science, Gregory C. Schaeffer

Masters Theses

The importance of attitude toward the teaching and understanding of science has long been a concern of researchers. Its importance in the schools, as a means to influence academic achievement, continues to be felt. Teachers, often without trying, pass on to their students attitudes about science that are unproductive. It is, therefore, important for teachers to possess attitudes supporting the subjects that they teach. The problem then is determining what factors contribute to these teacher attitudes and how are they passed on to students.

Past research has failed to show conclusively what actually contributes to the creation of positive and …

The Alternate Incentive To Early Teacher Retirement, Vernon Dean Guinn

Masters Theses

The major emphasis of the study was to formulate an answer to the question being asked by the study group under the Illinois Project for School Reform, "How to improve the quality of teachers within the school system?" Specifically, this study analyzed the results of a study done by the Planning and Research Department of the State Board of Education, prepared in April 1977. Under this study's proposal, four areas of substantial disincentives were identified as reasons for teachers not taking early retirement. The age discrimination effect has since been overcome with early retirement incentives now being offered in many …

Analysis And Trends Of Education And Employment: 1985 Fountain Central High School Graduates, Beverly J. Shelton

Masters Theses

The purpose of this study was to examine the perceived quality of education and the employment expectations of the 1985 graduates of Fountain Central High School and to gather current statistics on those graduates. Subjects comprised 103 graduates of a rural, west central Indiana public high school. The graduates were administered a survey to determine opinions and perceptions of education received, to determine whether they were employed or continuing their education, and to determine what trends may be developing or maintained.

Today' s students reflect a much wider range of preparation, as indicated by grades and class rank. The test …

Wit And Humor In Asl, Keila Tooley

Masters Theses

In his article "Linguistics and the Study of Poetic Language," Stankewicz (1960) characterizes poetic organization as "completely embedded in language and fully determined by its possibilities." The purpose of this study is to examine the form that poetic function assumes in a language that itself has a structural organization fundamentally different from that of oral languages and in which, accordingly, the possibilities for poetic organization are radically different.

In wit and poetry, elements of form and meaning—a linguistic system--are used to create complex multi-layered expressions with multiple meanings and systems of form and meaning. Similarities--and differences—in form, function and meaning …

Determining The Modified Derivative In Pressure Analysis, Scott Michael Frailey

Masters Theses

"The derivative type of curve technique of Bourdet for analyzing pressure tests requires calculating the derivative of the storage plot. Four numerical methods are used to evaluate the derivative: a five-point formula, Richardson's Extrapolation, a parabolic fit, and a central difference procedure. The parabolic fit and the central difference technique are good methods of determining the derivative. The effects of logarithmic s pacing of the data, using a central difference method, are studied. An investigation of the second derivative and the integral is conducted"-- Abstract, p. ii

A New Automated Pulse Testing Analysis Method Applying Inflection Point Theory, Jose Maria Donoso

Masters Theses

"This paper describes a new technique for pulse test analysis that combines the simplicity of the tangent method with the result repeatability of the iterative methods. Inflection points are used instead of time lag with the added advantage that they are calculated by a simple algorithm and are not subject to graphical misinterpretation. Charts are made for the calculation of transmissibility and storage for unequal pulse and shut-in periods from 0.1 to 0.9 relating inflection time to pulse response amplitude and dimensionless inflection time.

The graphs presented for this technique have the same dimensionless cycle period ranges (from 0.44 to …

A Data Structure For The Use Of Patterns In The Perceptual Ordering Of The Game Of Chess, Russ L. Hanna

Masters Theses

"It is well known that the way one perceives a problem can influence the difficulty of solving the problem in a profound way. In the case of computer chess playing programs, one finds that most programs perceive the game in much the same way. They are all based on Shannon's original proposal for chess playing programs. His approach was to generate all of the possible combinations of moves up to a certain number of plays and then a subset of all combinations to a deeper level thereafter. Each of these moves would then be evaluated as to its relative worth. …

A New Basin Characteristic For Use In Estimating Impervious Area And Flood Discharges In Urban Missouri Basins, Rodney E. Southard

Masters Theses

"A previous regression analysis of flood peaks on urban basins in St. Louis County, Missouri, indicated that the percentage of impervious area and drainage area were the only basin characteristics of statistical significance in estimating the 2-, 5-, 10-, 25-, 50-, and 100-year peak-flow discharges at ungaged urban basins. In this statewide regression analysis of urban basins, a new basin characteristic called the percentage of developed area was computed and used in a simple regression analysis. The regression analysis included percentage of developed area as the independent variable and impervious area as the dependent variable, resulting in a simplified procedure …

Empirical Equations For Activity And Osmotic Coefficients, N. Ragunathan

Masters Theses

A system of equations for fitting the experimental activity and osmotic coefficients of single and mixed electrolytes in aqueous solutions has been empirically developed in the present research. The results obtained through the equations developed here are comparable to the Pitzer equations in terms of accuracy and range of fitting. The equation for activity coefficient developed in the present research compared to the Pitzer activity coefficient equation has a form which is conveinient for computational purposes. The equation for activity coefficients is ln g = -╎Z_mZ_x╎A_D[I^1/2/(1 + bI^1/2)] + E …

Studies Of Sodium Dodecylbenzenesulfonate-Water-Electrolyte Interactions, Xiaoxiang Zhu

Masters Theses

A surfactant selective electrode using a PVC membrane was constructed. A surfactant (sodium dodecylbenzene-sulfonate)-H₂O system was studied at 15°, 19°, 25°, and 40°C with the PVC electrodes, a Na⁺ selective electrode, and a conductivity bridge. Pre-micelle regions at the above temparatures were observed. The critical micelle concentrations (CMC^b) obtained by the PVC electrodes in salt-free systems are: 1.63x10^-3 M at 15°C, 1.48x10^-3 M at 19.1°C, 1.52x10^-3 M at 25°C, and 1.73x10^-3 M at 41.6°C. The CMC'c obtained by the Na⁺ electrode are: 1.62x10^-3 M at 15°C, 1.37x10^-3 M …

Perceptions Of Parents, Teachers, And Administrators Of The Learning Disability Programs Of The Macon, Moweaqua, And Warrensburg-Latham School Districts, Carl R. Hall

Masters Theses

Purpose

The purpose of this field study was to evaluate the perceived effectiveness of the learning disability resource services, the model used to deliver services in Macon, Moweaqua, and Warrensburg-Latham School Districts, from the parents’, regular teachers’, resource learning disability teachers’, and administrators’ perspectives.

Assessing the perspectives currently held of the resource services by regular teachers, parents, resource learning disability teachers, and administrators served as an initial step in planning for future program needs and may help in establishing future goals for learning disability students. Discrepancies in the perceptions of these four groups may represent communication problems and identify areas …

Characterization Of The Capsular Polysaccharides On Cell Membranes Of Rhizobium Trifolii And Three Of Its Nod- Mutants, Jesse Ardosa

Masters Theses

The ever-present specter of the inavailability of food production to increase in direct proportion to population growth haunts practically every nation of the world. As more and more tracts of land are incorporated to accommodate expanding cities, they become less available for food production. Emphasis, therefore, is placed on obtaining a higher yield per acreage planted. Since fertilization is not reliable in the long term due to an eventual depletion of raw materials for fertilizers, the ability of plants like legumes to assimilate free soil nitrogen on their own has become increasingly important [1,11,14,17]. However, the mechanisms involved are still …

Isolation And Partial Analysis Of Proteins And Polysaccharides Of Rhizobium Trifolii, Manuelito M. Ordonez

Masters Theses

The outer membrane and periplasmic proteins of Rhizobium trifolii ANU 843 and its mutants ANU 851 and ANU 845(pRt150) were isolated and analyzed by polyacrylamide gel electrophoresis (PAGE). ANU 843 is the wild type strain which possesses all the characteristics necessary for nitrogen fixation. ANU 851 has a transposon (Tn5) inserted into the nodD gene of the root hair curling region of the symbiotic plasmid. It has lost its ability to cause root hair curling and therefore can not form nodules and can not fix nitrogen. ANU 845(pRt150) harbors only the 5.5 kb root hair curling region of the …

The Evaluation And Selection Process Of Instructional Games And Toys, Linda Kay Young

Masters Theses

Games and toys used in the classroom have been determined to be an effective means of instruction. The more teachers know about the games and toys being used in their classrooms, the more valuable these games and toys will be to their teaching and their students' learning. The main focus of this study was to gain understanding of the qualities and characteristics of instructional games and toys that will affect the cognitive, affective, and psychomotor domains of the student at the elementary level. This study examined the criteria that was considered important by "experts in the field" and validated those …

Converting The Bement Junior High School To The Bement Middle School, Greg Zollman

Masters Theses

The town of Bement, Illinois, had an elementary school (K-8) and a high school (9-12) prior to 1976. The Bement Community Unit School District initiated its junior high school in 1976. This school consisted of the seventh and eighth grades.

During the 1983-84 school year, the administrators of the Bement schools expressed a general concern with the academic grades, social development, and behavior that was occurring in the Bement Junior High School. They indicated that many of the problems were the result of having the junior high school students housed with the senior high school students. They perceived that some …

Analysis Of The Charleston, Illinois Water Supply For The Presence Of Organic Mutagens Utilizing The Ames Salmonella/Microsome Assay, Steven Lee Washburn

Masters Theses

Water samples from the Charleston, Illinois water supply and selected agricultural run-off areas were tested for the presence of organic mutagenic chemicals. The Ames Salmonella/microsome mutagenicity assay utilizing strains TA98 and TA100 was used to analyze concentrated water samples. A special set of samples was exposed to the S9 activation system coupled with the TA98 strain to simulate the mammalian metabolic system.

No mutagens were detected in any of the samples tested. Several positive and negative control systems were included in the testing system. Negative control systems were used to determine the average spontaneous reversion rates for each strain for …

Modelling Dynamic Entities In Relational Database Systems, Dominic Carmen Soda

Masters Theses

No abstract provided.

Characteristics Of A Stirred Bed Reactor Used For Gas-Solid Reactions, Christine Joy Beyke

Masters Theses

“A fluidized bed gas-solid reactor was designed and tested in which most of the fluidization energy is provided by a helical stirrer, with gas being used primarily as a reactant. The bulk gas in which the particles are suspended is practically constant in composition except for the area immediately adjacent to the gas inlet. The reactor is capable of withstanding temperatures up to at least 800°C and can be used with a wide range of flow rates. It is intended primarily as a laboratory tool, with the potential to be scaled up to multikilogram size.

The reactoor is a useful …