Digital Commons Network^™

An Impact Sensitivity Study Of Reactive Materials, Carl E. Delong

Masters Theses

"The impact sensitivity of a potassium chlorate, stabilized red phosphorous, Quso, and magnesium oxide mixture in a 34/14/4/2 ratio has been found to be about 18 ł 5 gram-centimeters for a 50% sensitivity to initiation. Chi-square tests at the 95% confidence level have determined that it is not possible to reject the hypothesis that the distribution is either normally distributed or log-normally distributed within the 50% range. Humidity, aging, and some additives were found to desensitize the mixture. Energy versus drop weight and test height curves show that momentum considerations are crucial over large test ranges in studies of impact …

Some Aspects Of Aerated Open-Channel Flow At Shallow Depths And Low Velocities, D. L. Fread

Masters Theses

"This study is concerned with the effect of entrained air bubbles on the open-channel hydraulics of water flowing at low velocities. The air bubbles are introduced into the flowing water by injecting diffused compressed air along the channel bottom. The variations of the velocity profile and velocity distribution energy coefficient of aerated and nonaerated flow are discussed. Empirical equations have been determined for the air concentration and increased depth of flow or "bulking" of the aerated open-channel flow. The investigation revealed a significant increase in the Manning roughness coefficient and the related Darcy friction factor for aerated flow relative to …

Some Effects Of Lead-Zinc Mining Wastewater On A Stream Environment, Anthony Ralph De Alonso Handler

Masters Theses

"The continuous discharge of lead-zinc mine and mill wastewater into some streams in southeastern Missouri may alter the ecology of those streams. A field and laboratory study was conducted to evaluate the potential pollution problem. Bee Fork Creek, the first stream in that area to receive tailings from mining operations, was selected for this study and periodically surveyed. Laboratory tests included static bioassays of lead, zinc, and copper, and the mode of action of the metals was investigated through post-mortem examination of the experimental fish. The test animals used in the bioassays were bluegill sunfish (Lepomis macrochirus, Rafinesque). The heavy …

Sorption And Desorption Of Chlorinated Hydrocarbon Pesticides By Clay Minerals, Cheng Sun Liao

Masters Theses

"This thesis describes the sorption and desorption of chlorinated hydrocarbon pesticides by clay minerals under laboratory controlled environmental systems. Particular emphasis was directed toward the investigation of the fundamental adsorption phenomena which occurred in selected pesticide-clay systems. the effects of certain environmental stresses, including pH, temperature and salt (NaCl) concentration of water, on the behavior of sorption and desorption were also studied. Pesticides selected for this study included DDT, dieldrin and heptachlor, and clay minerals employed were kaolinite, montmorillonite and illite. The adsorption rate and equilibrium were evaluated by batch techniques employing completely mixed systems while the effects of the …

Plastic Analysis Of Beam - Columns, Ning-Cheng Tsao

Masters Theses

"The results of an analytical study of the inelastic deformation of a wide-flange steel beam-column are presented. Emphasis has been placed on the influence of axial thrust on the pinned-end beam-column subjected to equal end moments with opposite direction. For this type of beam-column behavior, the relationship between the applied moment, axial load, and resultant curvature for the region in the plastic range has been studied in this investigation"--Abstract, page ii.

Criteria For Planning A Mobile Home Park Development In Rural Areas, Richard Euguene Sharp

Masters Theses

"The object of this study was to determine the possibility of developing a mobile home park as a partial solution to the problem of inadequate housing in rural communities. The investigation involved the study of modern mobile homes and mobile home parks, mobile home dwellers, and the social and economic aspects of mobile home living. It was suggested that a properly designed and managed mobile home park can provide a satisfactory location for the placement of mobile homes. The small down payment and low monthly payments associated with purchasing a mobile home, along with the inherent mobility of mobile home …

The Effect Of Structure On The Consolidation Of Compacted Unsaturated Clay Soils, William Joseph Graham

Masters Theses

"Contained in this paper are the results of research which was performed to investigate the relation between the volume-change mechanisms of shrinkage and one-dimensional compression for two clay soils, including some samples whose structures had been altered by the addition of flocculating and dispersing agents. Shrinkage tests were conducted with a special mold designed to facilitate the study of a soil's shrinkage path. consolidation tests on undisturbed samples and one-dimensional compression tests on unsaturated samples compacted in the vicinity of optimum moisture content were performed. A detailed study was made of a highly plastic red Missouri clay. Complications arose in …

A Flood Frequency Study For Small Watersheds In Missouri, Ronald Anthony Rusch

Masters Theses

"The quantity and quality of streamflow data available on small watersheds in Missouri has improved in the last ten years. However, it will be years before there is sufficient data on both the large and small watersheds to enable investigators to conduct extensive studies in the state. This study of 70 small watersheds within the state of Missouri presents a technique to estimate the discharge from watershed of 25 square miles or less...Results from this study may be used in the design of small hydraulic structures such as culverts, bridges, and dams for small reservoirs"--Abstract, page ii.

Coagulation In Waste Water Treatment, Garret P. Westerhoff

Theses

This paper emphasizes a practical approach to the coagulation of domestic waste water. A portion of the paper is a synopsis of current published literature on the subject. Laboratory studies on the coagulation of raw domestic waste waters were conducted to provide the basis of a practical procedure for the evaluation and design of a coagulation process. Studies included the development of a relationship between the B.O.D. and the soluble and solids portion of two waste tests. The jar test was used for the studies on the coagulation process. The final section of the paper outlines the chemical cost factors …

Streamflow Forecasting For The Logan And Blacksmith Fork Rivers In Northern Utah, Kenneth A. Mangelson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Accurate streamflow forecasts have been recognized as being important by water users and others whose occupations and pursuits depend upon the supply of water from snow fed streams.

The streamflow forecasting equations for the important predictive periods, in particular the April through September and the May through September total flows, were developed in this study for both the Logan and Blacksmith Fork Rivers.

Multiple linear regress ion was used as a mathematical model in determining the streamflow forecasting equations. A correlation analysis was used to determine the importance of the variables used in the mathematical model. The results of this …

Design Criteria For Usu Stilling Basin Pipe Flow To Open Channels, Chi-Yuan Wei

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Criterion have been developed in this study for designing a stilling basin to serve as a transition from pipe flow to open channel flow. The purpose of the structure is to prevent erosion in an open channel. The unsteadiness, or smoothness, of the water surface in the model basin was used as the criterion for evaluating the effectiveness of the structure for energy dissipation.

The introduction of a short-pipe energy dissipater in the stilling basin has proven effective in dissipating energy. The stilling basin was designed for a fully submerged pipe outlet. The inflow pipe and the dissipator pipe were …

Engineering Properties Of Bloomington-Normal Subsoils, Rohn Dunseth Abbott

Masters Theses

"The glacial subsoils of the Bloomington-Normal, Illinois area have been analyzed with regard to their engineering properties. Several boring logs are included to illustrate the horizontal and vertical variability in soil units encountered and in the engineering properties of these soil units. The engineering properties of the two most common foundation soils, the Bloomington and Normal tills are compared and special consideration is given to evaluating the compressibility of these materials. Evidence is presented that indicates that the circumferential trimming of a highly preconsolidated soil containing stones can cause significant sample disturbance. Special sampling techniques which eliminate circumferential trimming yield …

Construction Time And Cost Control Using The Ibm Project Management System/360, James Donald Bailey

Masters Theses

"The object of this investigation was to determine the advantages or disadvantages involved in the use of the IBM Project Management system/360 as a time and cost control tool as compared to the methods presently used by construction contractors in the small to medium size range.

The methods used by three construction contractors were investigated in order to acquire a sample of methods presently used.

It was determined from the investigation that a number of advantages could be obtained which would provide better control of a construction project.

It was also decided that a detailed investigation concerning the cost of …

Analysis And Synthesis Of Highway Pavement Design, Thomas R. Buick

JTRP Technical Reports

No abstract provided.

Economic Model For The Maintenance Of Traffic Signals: Technical Paper, Thorold G. Smith, Joseph C. Oppenlander

JTRP Technical Reports

No abstract provided.

Multisensor Analysis For Soils Mapping : Technical Paper, Harold Teddy Rib, Robert Douglas Miles

JTRP Technical Reports

No abstract provided.

Fortran Iv Programs To Develop Contour Maps Of 3-Dimensional Data : Progress Report, A. Keith Turner

JTRP Technical Reports

No abstract provided.

Investigations Into Automatic Interpretations Of Terrain Features : Technical Paper, Harold Teddy Rib, Robert Douglas Miles

JTRP Technical Reports

No abstract provided.

An Informational Manual On The Urban Transportation Planning Process For Technical Committees In Smaller Urban Areas : Progress Report, Ronald Jerome Hensen, William Louise Grecco

JTRP Technical Reports

No abstract provided.

Evaluation Of The Performance Of Ultrasonic Equipment For Pavement Thickness Measurements : Progress Report, Charles F. Scholer, Raymond Doran Pavlovich

JTRP Technical Reports

No abstract provided.

Small Scale Reinforced Concrete Models, Robert C. Vansiclen

JTRP Technical Reports

No abstract provided.

Pore Studies Of Carbonate Aggregates By An Evaporation Technique : Informational Report, Harold Reid Brown

JTRP Technical Reports

No abstract provided.

The Effect Of Concrete Strength On The Shear Strength Of Reinforced Concrete Beams With Bar Cutoff, J. Greg Borchelt

JTRP Technical Reports

No abstract provided.

Fracture Of Hardened Cement Paste, Steven John Hanna

JTRP Technical Reports

No abstract provided.

Research On Roadside Development And Maintenance : Part 1 - Bluegrass Research : Progress Report, William Hugh Daniel, Terrance P. Riordan

JTRP Technical Reports

No abstract provided.

The Pore Size Distribution Of Portland Cement Paste, Douglas Windslow

JTRP Technical Reports

No abstract provided.

An Evaluation Of The Aesthetics Of Junkyard Screening And Billboards Densities : Technical Paper, C. I. Macgillivray, Harold L. Michael

JTRP Technical Reports

No abstract provided.

The Influence Of Lightweight Fines Substituted For Conventional Fines On Freeze-Thaw Durability Of Portland Cement Concrete, David Lee Gress

JTRP Technical Reports

No abstract provided.

The Response Of Bituminous Mixtures To Dynamic And Static Loads Using Transfer Functions, S. A. Swami

JTRP Technical Reports

No abstract provided.

A Simplified Procedure For Major Thoroughfares Planning In Small Urban Areas : Progress Report, David Kent French

JTRP Technical Reports

No abstract provided.