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Articles 37651 - 37680 of 39826
Full-Text Articles in Civil and Environmental Engineering
A Predictive Model For Travel Times On Two-Lane State Highways : Progress Report, Salim Said Hejal, Harold L. Michael
A Predictive Model For Travel Times On Two-Lane State Highways : Progress Report, Salim Said Hejal, Harold L. Michael
JTRP Technical Reports
No abstract provided.
Penetration In A Graded Filter, William Chuan Shen
Penetration In A Graded Filter, William Chuan Shen
Masters Theses
"An experimental laboratory study conducted to examine clogging within and penetration of fines into a single layer graded filter. Hydraulic gradient, filter gradation and flow direction were varied. Forty one tests gave over six hundred individual penetration depths. The magnitude of penetration in filters with considerable variation in gradation patterns correlated with an average hydraulic radius based on the volume of voids and an approximated total surface area. It has been shown than an increased thickness of poorly graded filter will stop penetration such as that caused by seepage erosion. A relationship between hydraulic radius, penetration depth and probability of …
A Study Of The Composite Action Of Light Gage Steel Deck And Concrete, Charles Sherman Bach Jr.
A Study Of The Composite Action Of Light Gage Steel Deck And Concrete, Charles Sherman Bach Jr.
Masters Theses
"This thesis is on the investigation of corrugated light-gage steel sheets used as the tension reinforcement for concrete slabs. The steel sheets used had embossments placed at uniform intervals over the entire length of the sheets. The composite concrete and light-gage deck steel were tested to determine a method of design for this type of composite section from an economical, safe and practical standpoint. The investigation covered the flexural, shear and bond capacity of this type of composite section"--Abstract, page ii.
Computer Simulation Of The Hydrologic-Salinity Flow System Within The Upper Colorado River Basin, M. Leon Hyatt, J. Paul Riley, M. Lynn Mckee, Eugene K. Israelsen
Computer Simulation Of The Hydrologic-Salinity Flow System Within The Upper Colorado River Basin, M. Leon Hyatt, J. Paul Riley, M. Lynn Mckee, Eugene K. Israelsen
Reports
Changes in the hydrologic equilibrium of a river basin resulting from resource development also produce changes in the quality pattern. Since the burden of quality maintenance must be shared by users (just as are quantities) predictions are needed for quality changes which might result from contemplated development at any specified location within the river system. This study reports the development of a computer simulation model of the water and salt flow systems within the Upper Colorado River basin. Because of the close relationship between the hydrologic and salinity flow systems, an understanding of the hydrologic system is essential to successful …
Analysis Of Parking Conditions At The University Of Missouri - Rolla And Their Comparison To Other Universities, Richard Francis Rankin
Analysis Of Parking Conditions At The University Of Missouri - Rolla And Their Comparison To Other Universities, Richard Francis Rankin
Masters Theses
"The existing parking facilities at the University of Missouri - Rolla are presently inadequate and parking demand will continue to increase in the coming years. Factual study of existing conditions by means of physical vehicle counts indicate that operational efficiency can be increased as a method of reducing the parking shortage. It was determined, by a faculty and staff questionnaire, that the automobile was not greatly required in order to carry out university business. A faculty residence density study indicated that the majority of the faculty members live farther than 7/10 of a mile from the campus. Present methods of …
Oxygen Uptake By The Benthal Sludge Of A Waste Stabilization Pond, Edward Landon Niedringhaus
Oxygen Uptake By The Benthal Sludge Of A Waste Stabilization Pond, Edward Landon Niedringhaus
Masters Theses
"This thesis describes the laboratory evaluation of the benthal sludge oxygen uptake of a 6.7 acre waste stabilization pond which has served a city of 2,400 population for a period of seven years. Special emphasis is directed toward the explanation of laboratory techniques developed for this study to measure the oxygen uptake rate. The effects on oxygen consumption of temperature, nature of sludge, initial oxygen tension, and sludge consolidation are discussed. Benthal sludge samples were taken from three locations in the pond. Oxygen consumption studies were conducted in a specially designed plastic cylinder which included a novel magnetic mixing system. …
Recovery Of Trace Organic Pollutants By Solvent Extraction And Freeze Concentration, William Chih-Wen Chang
Recovery Of Trace Organic Pollutants By Solvent Extraction And Freeze Concentration, William Chih-Wen Chang
Masters Theses
"The objective of this investigation was to evaluate the use of batch type solvent extraction and freeze concentration in recovering trace organic pollutants from water. The work was performed using a simplified water system containing known concentrations of phenol, and natural water systems collected from three sources (Meramec Spring, Gasconade River near Jerome, and Missouri River in Jefferson City) with different levels of pollution. The simplified water system was used to evaluate the effect of the number of extractions, solvent to sample ratio, extraction time, initial organic concentration, pH, and turbidity on solvent extraction; and the effect of volumetric concentration …
A Study Of The Effects Of Added Solid-Liquid Interfacial Area On The Stabilization Characteristics Of Simulated Wastewater Stabilization Lagoons, Gary Lee Gaines
A Study Of The Effects Of Added Solid-Liquid Interfacial Area On The Stabilization Characteristics Of Simulated Wastewater Stabilization Lagoons, Gary Lee Gaines
Masters Theses
"Wastewater stabilization lagoons have recently become a popular and efficient method of sewage stabilization in many parts of the country. The purpose of this investigation was to determine the effect of added solid-liquid interfacial area on the treatment capabilities of simulated wastewater stabilization lagoons. The simulated lagoons consisted of six -15 gallon aquariums which were operated in the laboratory. The solid-liquid interfacial area was increased in four of these lagoons by suspending plastic panels in the aquariums. The lagoons were operated for a period of approximately two and a half months using dehydrated milk as a simulated waste substrate. During …
Removal Of Phosphate By Sorption On Activated Alumina, Checkman Michael Yue
Removal Of Phosphate By Sorption On Activated Alumina, Checkman Michael Yue
Masters Theses
"The purpose of this investigation was to study the removal of phosphorus from waste water by sorption on activated alumina, and determine the capacity of the alumina to sorb phosphates in the presence of other ions, the effect of the influent flow rate and phosphorus concentration on the efficiency of the process, and the feasibility of regeneration of the used alumina. The studies were conducted using deionized and tap water to which inorganic phosphate had been added, and secondary effluent from bench-scale activated sludge units. They involved batch tests employing three types of activated alumina, ALCOA XM (minus 325 mesh), …
An Investigation Of Mining Effluent And Water Quality In The "New Lead Belt" Of Southeastern Missouri, Hong Wen Chen
An Investigation Of Mining Effluent And Water Quality In The "New Lead Belt" Of Southeastern Missouri, Hong Wen Chen
Masters Theses
"A field and laboratory investigation was carried out to collect background data for stream water quality in the New Lead Belt of Southeastern Missouri. The parameters measured were temperature, hydrogen ion concentration, hardness, alkalinity, turbidity and fluorides. A prolific algal and microbial growth was found in Bee Fork Creek which receives the mining and milling wastewater effluent from the Fletcher Mine. The laboratory studies were conducted to examine the biological effects of the organic flotation reagents used in the mining operations. The studies included Gram staining of bacteria, antimicrobial effects of milling reagents, bacterial fermentation tests of sodium isopropyl xanthate …
Behavior Of A Remolded Silty-Clay Subjected To Sequential Loading, Lawrence Tsi-Ching Chung
Behavior Of A Remolded Silty-Clay Subjected To Sequential Loading, Lawrence Tsi-Ching Chung
Masters Theses
"The investigation was undertaken to determine shear strength and pore pressure parameters of a soil when subjected to sequential loading. This method is intended to similate the in-situ condition of stress application under certain field conditions. The testing procedure, a sequential triaxial shear test, is described. This test consists of successive stages of partial consolidation followed by undrained shear. Triaxial consolidation and shear strength characteristics of a sedimented remolded silty-clay are compared with the results from conventional tests on isotropically consolidated samples. The undrained strength was found to be a function of moisture content, irrespective of the method of test …
Shear Strength Characteristics Of Crushed Glass, Fred Ray Browning
Shear Strength Characteristics Of Crushed Glass, Fred Ray Browning
Masters Theses
"Drained and undrained triaxial compression tests were performed on two gradations of crushed glass in order to determine the compressibility and shear strength characteristics. Consolidation pressures varied from 10 to 100 psi. Volume changes during consolidation were discussed because of the dependency of shear strength behavior on the density condition at the end of consolidation. Stress-strain-volume change characteristics were observed in order to discuss the load-deformation and dilatancy relationships and the effects of varying density, gradation and consolidation pressure. Stress-strain properties were also determined for the undrained tests. The undrained tests were constant volume tests, thus having no dilatancy effects. …
A Socio-Economic Traffic Demand Prediction Model Based On A Lumped System Approach, John Edward Thompson
A Socio-Economic Traffic Demand Prediction Model Based On A Lumped System Approach, John Edward Thompson
Masters Theses
"The objective of this investigation was to devise a method for predicting transportation system demand based on socio-economic variables of certain physical areas. This pilot study was performed utilizing traffic flow, but minor mathematical alterations could change the transportation system to urban mass transit usage demand. An area of uniform socio-economic characteristics can be delineated and the socio-economic characteristics isolated. Each area will place a distinct demand on some existing transportation facility based on those characteristics. The physical demand can be approximated by a theoretical probability distribution. Once this internal flow generation has been approximated by the frequency distribution, it …
A Study On The Feasibility Of Using Pipelines For The Collection And Transportation Of Urban Solid Wastes, William Leo Sago Jr.
A Study On The Feasibility Of Using Pipelines For The Collection And Transportation Of Urban Solid Wastes, William Leo Sago Jr.
Masters Theses
"This study was conducted to determine the technological feasibility of using a tube transport (pipeline) system to supplement and partially eliminate the present inadequate solid waste collecting and transporting techniques employed in most cities throughout the United States. Specific objectives were to develop a practical pipeline system for the transport of refuse by means of a fluid and to determine the uniformity of composition of refuse. The hydrodynamic characteristics of each transport medium, water and Chemical Emulsion., W-4088, were to be determined also. Another item of interest was the degree of grinding necessary to transport refuse by pipeline. An experimental …
Clay Mineralogy And Compaction Characteristics Of Residual Clay Soils Used In Earth Dam Construction In The Ozark Province Of Missouri, Arthur David Alcott
Clay Mineralogy And Compaction Characteristics Of Residual Clay Soils Used In Earth Dam Construction In The Ozark Province Of Missouri, Arthur David Alcott
Masters Theses
"The clay mineralogy and Standard Proctor compaction characteristics of clayey residual soils developed on the Salem Plateau of the Ozark Physiographic Province and used in earth dam construction were studied. A review of the geology of the Salem Plateau is presented along with a discussion of the factors controlling the development of soils on carbonate bedrock in a high leaching environment. The predominant soil clay mineral was found to be a poorly crystallized kaolinite rather than halloysite as has been postulated by others. Minor amounts of triple-layer minerals and an undetermined amount of an alumino-silicate gel are indicated. The effects …
Principles Of Designing Monitoring Information Systems For Small Construction Contractors, Dan Richard Pellegrino
Principles Of Designing Monitoring Information Systems For Small Construction Contractors, Dan Richard Pellegrino
Masters Theses
"The object of this investigation was to develop a monitoring information system which would comply with the time and cost constraints of the small construction contractor. Every aspect of a monitoring system was considered and logically analyzed. A suggested Monitoring Information System was developed and compared to other monitoring systems in existing literature and also the monitoring system of a local contractor. It was determined by this investigation and comparison that the suggested Monitoring Information System eliminated many disadvantages of existing systems such as: 1) inaccurate monitoring of progress, 2) large number of forms to process, 3) large time lag …
Time And Load Independent Properties Of Bituminous Mixtures: Technical Paper, S. A. Swami, William Harner Goetz, Milton Edward Harr
Time And Load Independent Properties Of Bituminous Mixtures: Technical Paper, S. A. Swami, William Harner Goetz, Milton Edward Harr
JTRP Technical Reports
No abstract provided.
Flow In Aggregate-Binder Mixes : Technical Paper, Egons Tons, William Harner Goetz, Virgil L. Anderson
Flow In Aggregate-Binder Mixes : Technical Paper, Egons Tons, William Harner Goetz, Virgil L. Anderson
JTRP Technical Reports
No abstract provided.
A Study Of Relative Costs Of Flexible Highway Pavements, Farideh Ramjerdi
A Study Of Relative Costs Of Flexible Highway Pavements, Farideh Ramjerdi
JTRP Technical Reports
No abstract provided.
Analysis Of Concrete Slabs On Ground And Subjected To Warping And Moving Loads: Technical Paper, Karl Harcourt Lewis, Milton Edward Harr
Analysis Of Concrete Slabs On Ground And Subjected To Warping And Moving Loads: Technical Paper, Karl Harcourt Lewis, Milton Edward Harr
JTRP Technical Reports
No abstract provided.
A Generalized Investigation Of Selected Highway Design And Construction Factors By Regional Geomorphic Units Within The Continental United States, Matthew W. Witczak
A Generalized Investigation Of Selected Highway Design And Construction Factors By Regional Geomorphic Units Within The Continental United States, Matthew W. Witczak
JTRP Technical Reports
No abstract provided.
Precast, Prestressed Concrete For Bridge Decks : Technical Paper, Martin J. Gutzwiller, Robert H. Lee, Charles F. Scholer
Precast, Prestressed Concrete For Bridge Decks : Technical Paper, Martin J. Gutzwiller, Robert H. Lee, Charles F. Scholer
JTRP Technical Reports
No abstract provided.
Computer Time-Sharing (T-S) "An Engineering Tool" For The Engineering Applications Of The Small Company, James Binford Summers
Computer Time-Sharing (T-S) "An Engineering Tool" For The Engineering Applications Of The Small Company, James Binford Summers
Masters Theses
"The objectives of this investigation were to illustrate the capabilities of the time-sharing (T-S) industry, identify the means by which the small sized company, with a need to solve engineering problems, can best be served through T-S, and to present T-S to these potential users. Investigation was made of distinctive T-S services to formulate a composite of the T-S industry. Examples of three distinctive T-S services were used within this composite to exemplify the variations of services within the industry. The methods a small company could use to utilize computer services were identified emphasizing T-S as the method best suited …
An Investigation Of Core-Strengths Of A Portland Cement Concrete Pavement, James H. Havens
An Investigation Of Core-Strengths Of A Portland Cement Concrete Pavement, James H. Havens
Kentucky Transportation Center Research Report
This investigation concerns observed differences between the strengths of molded cylinder and beam specimens and the strength of concrete in situ. The specific project is a section of I 64 in Rowan County [I 64-6(15)130]. The paving was done between August 19 and September 27, 1968. Cylinder specimens molded on the project were tested after they had cured 28 days. Beam specimens were tested before they had cured 14 days. Those test results were "normal". However, cores taken to measure thickness of the pavement were subsequently tested for strength; and the pavement cores, even though older when tested, yielded strengths …
Equal Employment Opportunity, B. B. Meyers
Equal Employment Opportunity, B. B. Meyers
Kentucky's Annual Forum on Transportation
No abstract provided.
Traffic Operations During Maintenance, William G. Galloway
Traffic Operations During Maintenance, William G. Galloway
Kentucky's Annual Forum on Transportation
No abstract provided.
Public Hearings - Closing The Communications Gap, James G. Apple
Public Hearings - Closing The Communications Gap, James G. Apple
Kentucky's Annual Forum on Transportation
No abstract provided.
Relocation Assistance, Carl H. Bradley
Relocation Assistance, Carl H. Bradley
Kentucky's Annual Forum on Transportation
No abstract provided.
References [1969], Kentucky Transportation Center
References [1969], Kentucky Transportation Center
Kentucky's Annual Forum on Transportation
No abstract provided.
Lane Distribution, G. R. Garner
Lane Distribution, G. R. Garner
Kentucky's Annual Forum on Transportation
No abstract provided.