Physical Sciences and Mathematics Commons^™

A Precipitation Model And Experimental Correlation With Various Properties Of Pentaerythritol Tetranitrate, Thomas Rivera

Chemistry and Chemical Biology ETDs

A continuous precipitation method for the preparation of crystalline pentaerythritol tetranitrate (PETN) has been developed. The process involves the precipitation of PETN from an acetone solution by the addition of water in a static mixer. The principal independent variable is the ratio, R, of the acetone-PETN solution flow rate to the flow rate of water.

A mathematical model based on dispersed plug-flow equations adequately represents the physical process. The relationships developed can be used to predict particle size distributions, two explosion properties of PETN, and estimate the effective kinetics involved in the precipitation process. The mass-weighted mean particle size, L, …

Welcome, Robert A. Bohannon

Great Plains Wildlife Damage Control Workshop Proceedings

The Workshop which was held two years ago was a success. According to registration records this year, people from all of the Great Plains states are in attendance and 92 persons are registered. We are especially pleased to welcome C.F. Barrett, Supervisor of Animal Pest Control of the Alberta Department of Agriculture who travelled the longest distance to attend.

Tree Squirrel Damage Control, Robert L. Carlton

Great Plains Wildlife Damage Control Workshop Proceedings

Unlike some wildlife species, tree squirrels are treated as game animals in every state where found. Thus, there are often restructions on times when tree squirrels may be controlled. In areas of high human population, there may be restrictions on ways in which squirrels may be controlled. Finally, because of the human affection for squirrels, there may be places where effective control is almost impossible.

Management Of Cats - Felidae In Colorado, Major L. Boddicker

Great Plains Wildlife Damage Control Workshop Proceedings

Panthers, catamounts, pumas, mountain lions have occurred in legend and folklore from the first years of explorers in the new world until today. They are timid shadows of the night which emit blood curdling screams and yowls. They have occasionally (rarely) killed children and adults (Nevada 1974). Have a taste for horseflesh. They feed heavily on deer and have the capability of killing adult elk.

Rabbit Damage Control, Edward K. Boggess

Great Plains Wildlife Damage Control Workshop Proceedings

In discussing the control of damage caused by rabbits in the Great Plains area it is helpful to distinguish between the true rabbits, of the genus Sylvilagus, and the so-called jackrabbits, of the genus Lepus, which are really hares. Laws governing the control of rabbit damage vary between states. In Kansas, no poisons can be used for controlling rabbits. This leaves basically three approaches to solving a rabbit damage problem. These are: removal, exclusion and the use of repellents.

Feral Mammal Damage And Control, Philip S. Gipson

Great Plains Wildlife Damage Control Workshop Proceedings

Feral populations of five domestic mammals, dogs (Canis familiaris), house cats (Felis catus), hogs (Sus scrofa), burros (Equus asinus) and horses (Equis caballus), presently occur in North America. At times these animals cause problems, damaging crops or livestock, or competing with livestock and native wildlife for food and living space. Free-living bands of a sixth species, cattle (Bos taurus), formerly occurred in the Southwest. Feral mammals are adaptable, and they have become a permanent part of the fauna in many states. Researchers generally ignored feral mammals in the past, although numerous reports have been published in the past 10 years. …

Wildlife Damage Control Workshop Summary, Philip S. Gipson

Great Plains Wildlife Damage Control Workshop Proceedings

The second Wildlife Damage Control Workshop was a success. Damage control authorities and conservationists shared knowledge and philosophies regarding control objectives, technology and laws. This workshop differed from the first Damage Control Workshop (Henderson 1973) by treating a variety of wildlife damage including problems with nuisance birds and commensal rodents to feral animals, coyotes, and cougars. The first workshop focused on damage caused by coyotes.

4-H And Youth Related Programs, Major L. Boddicker

Great Plains Wildlife Damage Control Workshop Proceedings

The value of a youth oriented wildlife management program is obvious. Youth is an audience with an open mind, often not committed to old errors. With a proper and intensive education program, a strong future impact can be made on the acceptance and success of animal damage control programs. Programs of quality can change a youth's outlook on problem wildlife from one of apathy or intolerance to one of positive management and high damage tolerance.

Table Of Contents, F. Robert Henderson

Great Plains Wildlife Damage Control Workshop Proceedings

Table of Contents

Control Of Wild Animals And Public Opinion, Charles H. Callison

Great Plains Wildlife Damage Control Workshop Proceedings

In 1957 the noted ornithologist Robert Cushman Murphy and other landowners on Long Island went to court in an effort to enjoin the U.S. Department of Agriculture from the aerial spraying of DDT to "eradicate" the gypsy moth. This event was years before Rachel Carson wrote Silent Spring. It may have been the first of the modern environmental law suits, although no one called it that. Certainly it was a forerunner of the modern environmental law organizations, because about ten years later the Environmental Defense Fund, was born, interestingly, in Dr. Murphy's neighborhood on Long Island. EDF's first great task …

Commensal Rodent Damage Control, Robert L. Carlton

Great Plains Wildlife Damage Control Workshop Proceedings

Commensal rats and mice are among the only animals about which no good can be said. Each year rats and mice are estimated to cost the American public over $1 billion. This loss is due to contamination of food stuff, structural damage, etc. To give an idea how these rodents can effect the economic picture, assume a rat will eat 25 pounds of chicken feed per year and foul another 25 pounds to such extent it cannot be used as feed (some estimates are as much as ten times greater). The house mouse will consume about 5 pounds per year. …

How To Handle Problem Skunks, F. Robert Henderson

Great Plains Wildlife Damage Control Workshop Proceedings

There are two species of skunks in Kansas. The striped skunk is about the size of a large house cat, generally black in color with two white stripes running from the base of the skull to the large bushy tail. Solid black indivduals are known to occur, but only rarely. The spotted skunk is a smaller mammal about the size of a half-grown house cat. The spotted skunk is a more active, agile animal and a good tree climber.

Muskrat Damage Control, James E. Miller

Great Plains Wildlife Damage Control Workshop Proceedings

Muskrat control, like any type of vertebrate pest control, is not an easy task. It requires not only practical effective methods, but a diligent effort, as well. When speaking of muskrat control, we are not implying total eradiction, because, first of all, it would not be possible, and secondly, in most areas other than agricultural croplands, they are not considered a pest.

Design Of Film-Substrate Single-Reflection Linear Partial Polarizers, R. M.A. Azzam, A.-R. M. Zaghloul, N. M. Bashara

Electrical Engineering Faculty Publications

The results of a preceding paper [J. Opt. Soc. Am. 65, 1464,(1975)] are viewed from a different angleas providing the basis for the design of film-substrate single-reflection linear partial polarizers (LPP),which also operate as reflection optical rotators. The important characteristics of a comprehensive set of discrete designs of SiO₂-Si LPP’s at λ = 6328 Å are shown graphically.

Polarizer-Surface-Analyzer Null Ellipsometry For Film-Substrate Systems, R. M.A. Azzam, A.-R. M. Zaghloul, N. M. Bashara

Electrical Engineering Faculty Publications

Single-pass polarizer-surface-analyzer null ellipsometry (PSA-NE) can be used to characterize film-substrate systems, provided that the film thickness lies within one of a set of permissible-thickness bands (PTB). For a transparent film on a transparent or absorbing substrate, the PTB structure consists of a small number of finite-bandwidth bands followed by a continuum band that extends from a film thickness of about half the wavelength of light to infinity. We show that this band structure is a direct consequence of the periodicity of the ellipsometric function ρ (the ratio R_p/R_s, of the complex amplitude-reflection coefficients for …

Using A Programmable Calculator To Introduce Fundamental Concepts Of Assembly Language Programming, H. D. Schwetman

Department of Computer Science Technical Reports

No abstract provided.

The Dependence Of Operating System Size Upon Allocatable Resources, Atilla Elci

Department of Computer Science Technical Reports

No abstract provided.

Irrational Numbers And Reality, Arnold H. Veldkamp

Pro Rege

No abstract provided.

The Prairie Naturalist Vol. 7, No.4. December 1975

The Prairie Naturalist

COMPARISON OF FLOWERING RECORDS FROM KANSAS AND NORTH DAKOTA ▪ O. A. Stevens

REPAIRED BONE BREAK IN A HOUSE SPARROW ▪ C. L. Cink and T. K. Broschat

A LARGE RACOON LITTER ▪ E. K. Fritzell and J. W. Matthews

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA –1975 ▪ R. N. Randall

BOOK REVIEW

Autumn Hawk Migrations ▪ P. B. Hofslund

Computer Manpower In The United States - Supply And Demand, John Wesley Hamblen

Computer Science Faculty Research & Creative Works

At a time when new departments of computer science, data processing, information science, information systems, etc. are being created and existing departments are trying to grow and compete with more established disciplines for scarce resources, it seems imperative that we attempt to keep abreast of the needs of industry and government for the graduates of these programs. This need must be monitored and matched against the production of graduates at all appropriate levels. The author has assembled extensive data on the latter over the past eight years while at the Southern Regional Education Board in Atlanta, GA (USA) during the …

The P-Nitrobenzyl System. Iv. Base-Induced Transformations In P-Nitrobenzyl Chloride, Bromide, Iodide, Tosylate, And Sulfonium Salts, Samir B. Hanna, Paul H. Ruehle

Chemistry Faculty Research & Creative Works

No abstract provided.

Analysis Of The Sediment Filtering Action Of Grassed Media, Billy J. Barfield, David T. Y. Kao, E. W. Tollner

KWRRI Research Reports

The movement of sediment in non-submerged flow through a rigid grass media was studied experimentally by simulating the media with cylindrical nails. Models of sediment movement were developed from probablistic reasoning and from the use of existing parameters describing total bed material in open channel flow. In the probability analysis, the percent sediment trapped was found to be a power function of the number of potential fall paths, N_f,a particle could make from the surface to the bed while traveling through the filter media. The percent trapped was also found to be an inverse power function of the …

Tertiary Treatment Of Wastewater Using Oxidation Ponds, Robert A. Lauderdale, John R. Moeller, Raymond D. Hamilton

KWRRI Research Reports

The purpose of the project was to determine the value of using lagoons as a supplemental process for treating the effluent from an activated sludge wastewater treatment plant.

Only tentative conclusions can be suggested since the project was not carried to completion. It appears that lagoons will have only minimal effect on the amounts of total nitrogen and phosphate in the plant effluent, although conversion of a portion of the ammonia to nitrate can be expected. However, the concentration of ammonia was never lower than that required by EPA guidelines. Some reduction of soluble BOD appears to occur, perhaps through …

Rural Residential Water Demand In Kentucky: An Econometric And Simulation Analysis, Orlen C. Grunewald, C. T. Haan, David L. Debertin, D. I. Carey

KWRRI Research Reports

This study proposed that demand management through pricing policies can be used in conjunction with supply management to solve water supply problems in Kentucky. Economic principles were shown to apply to rural residential water use. From the economic model, a hyperbolic demand function was theorized. The mathematical form of this function used quantity of water as a function of price, income, value of residence, evaporation, and persons per residence. This function was estimated using ordinary least squares regression. A log-linear model was found to be a satisfactory representation of the demand function. Price was the only independent variable which was …

Geology And Ore Deposits Of The Blackbird District Lemhi County, Idaho, Gary Lynn Purdue

Earth and Planetary Sciences ETDs

This report is a supplement to the Geologic Map of the Blackbird district which forms the southeast quadrant of the 15-minute Blackbird Mountain quadrangle, located in the Salmon River Mountains in Lemhi County, east central Idaho. Ore deposits in the district were developed during the first half of the twentieth century, but mining has been hampered by low-grade ores and the small size of the mineralized zones.

Outcrops are poor in the district because of heavy soil cover and talus slopes. Precambrian sedimentary rocks are part of the Belt Supergroup and have been divided into nine units. Precambrian units mapped …

Geology Of The Datil Area, Catron County, New Mexico, David A. Lopez

Earth and Planetary Sciences ETDs

The Datil Mountains, Catron County, New Mexico, are an uplifted fault-block located along the northwestern margin of the San Augustin Plains, a Basin and Range structural basin.

No pre-Tertiary rocks occur in the study-area. All of the volcanic rocks are probably Oligocene in age, although the base of the lowest unit may be late Eocene. The oldest rocks belong to the Spears Formation and are divided into three members: A lower unit composed of andesite breccia flows and interbedded volcaniclastic conglomerate, 700+ ft (220+m); a feldspathic volcaniclastic sandstone, 100 ft (30 m); and upper porphyritic andesite flow rock, 100 ft …

A Study Of Selected Variables For Prediction Of Success And Placement In General Chemistry At Western Michigan University, Stephen M. Yekeson

Dissertations

Chapter I

The Problem

Introduction

The traditional philosophy that a college-or a university is an exclusive institution in which only highly selected individuals receive a concentrated training in the traditional liberal arts no longer exists. In America, for instance, as early as 1870, Harvard, the colonial college with a narrow curriculum, was transformed rather rapidly into a modern university with many new subjects and the elective system (Garrett, 1949). Also, since 1642, when the first entrance requirements were instituted for American higher education, a continuing debate has developed over what constitutes a sound curriculum for education. There are those who …

Saturation Effects In A Tunable Coherent Near-Infrared Source, Israel L. Tyler, R. (Ralph) W. Alexander, R. (Robert) J. (John) Bell

Physics Faculty Research & Creative Works

A Saturation Effect in a Tunable Infrared Source Utilizing Four-Wave Parametric Conversion in Potassium Vapor is Reported and is Shown to Be the Result of Parasitic Oscillations. a Hundredfold Increase over Previously Attained Power Levels Has Been Affected Via Elimination of These Oscillations.

Structural Inference On Reliability In A Lognormal Model, Danny D. Dyer

Mathematics Technical Papers

The theory of structural inference, as developed by Fraser (1968), is based on a group-theoretic approach using invariant Haar measures to Fisher's fiducial theory. Structural inference theory constructs a unique distribution, conditional on the given sample information only, for the parameters of a measurement model. Based on the structural density for the two-parameter lognormal distribution, the structural density and distribution function for the reliability function are derived. Consequently, expressions for structural point and interval estimates of the reliability function are developed. Approximations for large sample sizes and/or moderately reliable components are also discussed. An example based on lognormal data is …

Use Of Optical Character Recognition In The Invoice Processing System Of The Michigan Medicaid Program, Richard F. Burns

Masters Theses

No abstract provided.