Engineering Commons^™

Technical Problems And Progress In Tanzania, Michael K. Mbwando

Tanzania Journal of Engineering and Technology (TJET)

Abstract

An Analysis Of The Passenger Vehicle Interface Of Street Transit Systems With Applications To Design Optimization, Walter H. Kraft

Dissertations

This research analyzes the Passenger Vehicle Interface of the street transit systems and presents applications for design optimization. The Passenger Vehicle Interface (PVI) is defined as the interaction between the passenger and vehicle elements of the street transit system.

Human observer and photographic studies were conducted in 17 cities in the United States and Canada to measure the time for queues of passengers to board various transit vehicles. The data were analyzed by considering seven factors that affect the Passenger Vehicle Interface: Human Factor, Modal Factor, Operating Practices, Operating Policies, Mobility, Climate and Weather, and Other System Elements. Those effects …

Disposal Of Lead And Zinc Cationic Wastes On Soils., Stephen Melvin Linnemann

Masters Theses

"The sorption and desorption of lead and zinc on soil samples from the "New Lead Belt" of southeastern Missouri and from Springfield, Missouri, were investigated using both column and batch systems. These cations were selected for study because of the possible effects which soil pollution in the "New Lead Belt" mining region could have on shallow aquifers and because both metals are utilized in the electroplating industry.

It was found that soil has the ability to sorb lead and zinc; however, the cation-exchange capacity (C.E.C.) of the soils studied was not fully satisfied, though there was evidence that i f …

Methods Of Soil Stabilization For Erosion Control, Sidney Diamond

JTRP Technical Reports

No abstract provided.

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

Sun, Sand And Water: A History Of The Jacksonville District U.S. Army Corps Of Engineers 1821-1975, George E. Buker

Books

A history of the Jacksonville district of the U. S. Army Corp of Engineers and their challenges to develop Jacksonville as a viable harbor and intracoastal waterways from 1821-1975

Dynamic Testing Of Anchors Buried In Dry Sand., Jim Lee Hillhouse

Masters Theses

"The dynamic pullout resistance of anchors was investigated through the use of model testing under controlled conditions. The soil used for the model tests was a dry sand compacted to a uniform relative density of approximately 92 percent. The dynamic loading of the anchor-soil system was applied by a mechanical device, which applied a specific amplitude and frequency of dynamic load to the anchor-soil system.

The dynamic testing of the anchors consisted of two phases. First, an initial static load was applied to the anchor. Second, a dynamic load was superimposed over the initial static load. The load applied to …

A Study Of Trace Organic Emissions In Mining And Milling Wastewaters In The New Lead Belt Of Southeastern Missouri., Alan James Callier

Masters Theses

"The primary objective of this study was to evaluate the trace organic contributions by two lead and zinc mining and milling operations in Southeastern Missouri. A secondary objective was to evaluate a reverse osmosis-solvent extraction method for use in recovering trace organics.

Trace organics were recovered in the first phase of the study following procedures as outlined by the American Society of Testing and Materials (ASTM), with chloroform and benzene being used as the solvents. The data indicated that the milling waste contained a larger concentration of trace organics than the excess mine water. Furthermore, it was shown that recycling …

Denitrification Of A Synthetic Waste With A Submerged Filter, Dominic Joseph Grana

Masters Theses

"The facultative anaerobic submerged filter is a plug flow, packed bed, column type reactor in which the facultative microorganisms responsible for nitrate reduction are attached to the filter media. The objective of this study was to evaluate filter performance and the kinetic equations of the process under variable conditions of flow rate, nitrate nitrogen concentration, and organic loading.

Two 0.5 cu ft (14.25 1) laboratory filters were operated for 144 days at 35°C using a synthetic waste as the substrate. Filter media consisted of smooth quartzite stone, 1 to 1.5 in. (2.54-3.82 cm) in diameter. Each filter had a porosity …

Effects Of Colloidal Materials And Polyelectrolytes On Carbon Adsorption In Aqueous Solution., Jack Taylor Garrett Jr.

Masters Theses

"The purpose of this study was to investigate the effect of certain colloidal materials and long-chain polyelectrolytes on the adsorption efficiency of some selected activated carbons which were manufactured from both coal-based and lignite-based materials. Phenol was used as the adsorbate to determine the adsorption efficiency.

At the beginning of the study, four brands of activated carbon (i.e. Filtrasorb 400, Darco, Norit, and Witco 256) were tried, based on the preliminary adsorption data, two activated carbons were subsequently selected for use throughout the entire study. These were Calgon's Filtrasorb 400 and American Norit's Norit activated carbons. The former represents a …

Planned Unit Development: A Comprehensive Analysis Of A New Approach To Community Living., John Raymond Weese

Masters Theses

"Undeveloped land in America has been one of our most cherished natural resources for many years. Yet, land development has often been haphazard and extremely wasteful.

This paper presents a comprehensive analysis of one particular method for developing land which utilizes land efficiently, but which also respects the natural characteristics of a land development site. The Planned Unit Development process is such a method, and it is the subject of this paper.

The Planned Unit Development concept is an outgrowth of the planned community concept which has existed for many years. However, only recently has the Planned Unit Development concept …

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 …

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 …

Ultrasonic Instrumentation And The Dynamic Evaluation Of Asphalt-Aggregate Mixtures., John Edward Hill

Masters Theses

"Ultrasonic probes have been constructed for use in the dynamic and nondestructive testing of asphaltic concrete specimens. The probe systems exhibited characteristics superior to the solitary ii use of their main components, the piezoelectric crystals. The probes have the advantages of the reduction of ringing time, the concentration of ultrasound in one direction, the elimination of "noise" due to unshielded connections and the increased durability of the probe system.

The probes constructed were used in a limited testing program. Compression and transverse wave velocities in the specimens tested were measured simultaneously. Sample conditions suitable for maximum wave velocity corresponded to …

A Method Of Predicting The Economic Effects Of Highways In Undeveloped Countries., Mohamed Magzoub Abdallah

Masters Theses

"This paper reviews the findings of the socio-economic impact studies pertaining to land-use changes. An attempt is made to explain, through land-use studies, the relationship between the past and future development of the City of Rolla, Missouri, and the system of highways serving the city, The relationship between land-use changes, expressed in active units rather than areas, and the level of activity related to those changes, rep resented by 0-D traffic volumes, is studied for Rolla and the difference in the behavior of this relationship in undeveloped countries is discussed"-- Abstract, p. ii

Highway Bridge Vibration Studies : Interim Report, Trakool Aramraks

JTRP Technical Reports

No abstract provided.

Computer Analysis Of General Slope Stability Problems, Ronald A. Siegel

JTRP Technical Reports

No abstract provided.

Stabl User Manual: A Description Of The Use Of Stabl's Programmed Solution For The General Slope Stability Problem, Ronald A. Siegel

JTRP Technical Reports

No abstract provided.

Traffic Speed Report No. 93 : Interim Report, Ahmed Atef Gadallah, George K. Stafford, C. B. Reiling

JTRP Technical Reports

No abstract provided.

Wrong-Way Movements On Divided Highways : Technical Paper, Peter N. Scifres, Roy C. Loutzenheiser

JTRP Technical Reports

No abstract provided.

The Influence Of Retarding Admixtures On Volume Changes Of Concrete, Charles F. Scholer

JTRP Technical Reports

No abstract provided.

Improving Embankment Design And Performance: Prediction Of As-Compacted Field Strength By Laboratory Simulation : Interim Report, John L. Peterson

JTRP Technical Reports

No abstract provided.

Evaluation Of Continuously Reinforced Concrete Pavements In Indiana, Asif Faiz

JTRP Technical Reports

No abstract provided.

Comparative Travel Patterns From Four Work Trip Data Sources, Wing-Kwong Law

JTRP Technical Reports

No abstract provided.

Governmental Reorganization And Metropolitics: Determinants Central To A Normative Theory Of Metropolitan Planning, Woodrow L. Moore

JTRP Technical Reports

No abstract provided.

Study Of Collector-Distributor Roads, Ronald S. Hansell

JTRP Technical Reports

No abstract provided.

Limiting Strain As A Failure Criterion For Bituminous Mixtures, Raymond Doran Pavlovich

JTRP Technical Reports

No abstract provided.

Traffic Speed Report No. 94 : Progress Report, Ahmed Atef Gadallah, George K. Stafford

JTRP Technical Reports

No abstract provided.

History Of The Interstate System In Indiana: Volume 4 - Chapters Vii And Viii: Cost, Funding And General Benefits, David Alan Ripple

JTRP Technical Reports

No abstract provided.

Pore Size Distribution Of Compacted Soils After Critical Region Drying, Rakhishwar Nath Bhasin

JTRP Technical Reports

No abstract provided.