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Articles 10771 - 10800 of 11799
Full-Text Articles in Civil and Environmental Engineering
Driver-Vehicle-Roadway Interaction Model, Mark E. Jaeger
Driver-Vehicle-Roadway Interaction Model, Mark E. Jaeger
Masters Theses
"A non-trivial simulation model has been developed which combines driver and vehicle dynamics with the roadway into one system. The model was successfully simulated on a portion of an existing roadway with the dynamic response and performance of the simulator being subjectively realistic. By implementing the idea of the interaction of variables, a much more detailed and representative response is obtained as compared to previous models based solely upon a single-factor-effect approach. By analyzing a simulated vehicle's velocity and trajectory, it is felt that an increase in driver "look ahead" distance or a decrease in vehicle velocity tends to improve …
The Evaluation Of An Activated Sludge Process At Elevated Temperatures, Peter J. Dawson
The Evaluation Of An Activated Sludge Process At Elevated Temperatures, Peter J. Dawson
Masters Theses
"The feasibility of utilizing the thermal energy from an electric power plant to operate an activated sludge process at elevated temperatures (above 40°C) was assessed.
The practicality of using this heat was determined from a heat transfer analysis and the operation of the activated sludge process was evaluated from laboratory studies of a batch process treating domestic and synthetic sewage.
The tank size for a thermophilic activated sludge chamber could be reduced by 40 to 50% as compared to ambient temperatures. For thermophilic processes a temperature of 55°C is recommended because the transition phase between mesophiles and thermophiles is around …
Chemical And Ultrasonic Conditioning Of Water Treatment Plant Coagulant Sludges, Stanley Louis Klemetson
Chemical And Ultrasonic Conditioning Of Water Treatment Plant Coagulant Sludges, Stanley Louis Klemetson
Masters Theses
"The objective of this investigation was to evaluate the use of ultrasonic energy, pH adjustment, and addition of polyelectrolytes in dewatering coagulant sludges. Emphasis was placed on the effects of the ultrasonic power output level and period of conditioning, the chemical conditioning of the sludge, and the type and origin of the sludge. Dewatering is thought to be the most practical approach for reducing the volume of coagulant sludges and efforts are being made to improve their dewatering characteristics.
An experimental system consisting of a magnetically stirred sludge reservoir, sonifier and reaction chamber, polymer feeder, and collection cylinder was developed …
Attitude Scaling As A Public Involvement Tool In The Lower Mississippi River Region Comprehensive Study, William A. Lee
Attitude Scaling As A Public Involvement Tool In The Lower Mississippi River Region Comprehensive Study, William A. Lee
Masters Theses
"The planner is under considerable pressure to involve the public in water resource planning. The public, however, often lacks sufficient knowledge to offer useful comments or suggestions. The use of a Likert Type Attitude Scale in the public involvement effort of the Lower Mississippi Region Comprehensive Study demonstrates the usefulness of attitude scaling techniques in obtaining public input to the planning process. The measurement of an individual's attitude, or his thoughts, feelings and disposition to act toward some aspect of his environment with some degree of consistency, gives an indication of the goals and objectives toward which a plan acceptable …
The Linear New City -- A Pattern For New Cities Based On Efficiency Of Transportation, Public Services, And Land Use, Elbridge Wesley Bartley Iii
The Linear New City -- A Pattern For New Cities Based On Efficiency Of Transportation, Public Services, And Land Use, Elbridge Wesley Bartley Iii
Masters Theses
"The linear new city is defined as a city consisting of some arrangement of relatively narrow, high-density strips, served by various mass transportation systems. Such a new city would be ideally suited to the implementation of the latest technology. The concentration of development along the transportation route would allow certain economies in the supply of utilities and services, as well as insuring that open space would be readily available around and throughout the city. The provisions for transportation, housing, and governmental control should combine to produce a better quality of life for the inhabitants of the linear new city"--Abstract, page …
Compacted Cohesive Test Embankment: Design, Installation And Operation Of Field Instrumentation : Interim Report, Wiiliam L. Degroff
Compacted Cohesive Test Embankment: Design, Installation And Operation Of Field Instrumentation : Interim Report, Wiiliam L. Degroff
JTRP Technical Reports
No abstract provided.
Statewide Survey Of Blowups In Resurfaced Concrete Pavements : Interim Report, Paul Thomas Foxworthy
Statewide Survey Of Blowups In Resurfaced Concrete Pavements : Interim Report, Paul Thomas Foxworthy
JTRP Technical Reports
No abstract provided.
Determination Of Consistency Limits Of Soils By Moisture-Tension Method, Ahmed Atef Gadallah
Determination Of Consistency Limits Of Soils By Moisture-Tension Method, Ahmed Atef Gadallah
JTRP Technical Reports
No abstract provided.
Effect Of Variations In Coarse Aggregate Gradation On Properties Of Portland Cement Concrete : Technical Paper, Charles F. Scholer, Stephen Daugherty Baker
Effect Of Variations In Coarse Aggregate Gradation On Properties Of Portland Cement Concrete : Technical Paper, Charles F. Scholer, Stephen Daugherty Baker
JTRP Technical Reports
No abstract provided.
Land Use Development At Interstate Interchanges In Indiana, Lawrence Peter Fabbroni
Land Use Development At Interstate Interchanges In Indiana, Lawrence Peter Fabbroni
JTRP Technical Reports
No abstract provided.
Nitrogen Fixation By Woody Plant Species As Measured By Acetylene Reduction Assay : Technical Paper, Robert E. Mcniel, Philip L. Carpenter
Nitrogen Fixation By Woody Plant Species As Measured By Acetylene Reduction Assay : Technical Paper, Robert E. Mcniel, Philip L. Carpenter
JTRP Technical Reports
No abstract provided.
Design And Performance Of Continuously Reinforced Concrete Pavements : Technical Paper, Eldon J. Yoder, Asif Faiz
Design And Performance Of Continuously Reinforced Concrete Pavements : Technical Paper, Eldon J. Yoder, Asif Faiz
JTRP Technical Reports
No abstract provided.
Mechanical Behavior And Reinforcement Of Mineral Filler-Asphalt Mixtures : Technical Paper, David Albert Anderson, William Harner Goetz
Mechanical Behavior And Reinforcement Of Mineral Filler-Asphalt Mixtures : Technical Paper, David Albert Anderson, William Harner Goetz
JTRP Technical Reports
No abstract provided.
Kinetics Of Calcite Dissolution, Larry Chester Muszynski
Kinetics Of Calcite Dissolution, Larry Chester Muszynski
JTRP Technical Reports
No abstract provided.
Evaluation Of Bituminous Mixtures Using The Gyratory Testing Machine, Arun Kumar
Evaluation Of Bituminous Mixtures Using The Gyratory Testing Machine, Arun Kumar
JTRP Technical Reports
No abstract provided.
Effects Of Retarding Admixtures On Plastic Shrinkage Of Portland Cement Paste : Interim Report, Hanume Gowda
Effects Of Retarding Admixtures On Plastic Shrinkage Of Portland Cement Paste : Interim Report, Hanume Gowda
JTRP Technical Reports
No abstract provided.
The Effect Of Quasi-Preconsolidation On Compression Of Clay Soils : Interim Report, John Leitch Davidson
The Effect Of Quasi-Preconsolidation On Compression Of Clay Soils : Interim Report, John Leitch Davidson
JTRP Technical Reports
No abstract provided.
Changing Characteristics Of High Accident Drivers Over A Five Year Period : Technical Paper, John Earl Goodson, Harold L. Michael
Changing Characteristics Of High Accident Drivers Over A Five Year Period : Technical Paper, John Earl Goodson, Harold L. Michael
JTRP Technical Reports
No abstract provided.
Operational Planning Of Fixed-Route And Demand-Responsive Bus Systems In Greater Lafayette Area, Antoine George Hobeika
Operational Planning Of Fixed-Route And Demand-Responsive Bus Systems In Greater Lafayette Area, Antoine George Hobeika
JTRP Technical Reports
No abstract provided.
An Evaluation Methodology For The Selection Of An Interchange Configuration : Technical Paper, Thomas Ernest Mulinazzi, Gilbert T. Satterly
An Evaluation Methodology For The Selection Of An Interchange Configuration : Technical Paper, Thomas Ernest Mulinazzi, Gilbert T. Satterly
JTRP Technical Reports
No abstract provided.
Determination Of Atterberg Limits Using Moisture Tension Methods : Technical Paper, Ahmed Atef Gadallah, Eugene Robert Russell, Eldon J. Yoder
Determination Of Atterberg Limits Using Moisture Tension Methods : Technical Paper, Ahmed Atef Gadallah, Eugene Robert Russell, Eldon J. Yoder
JTRP Technical Reports
No abstract provided.
Guidelines For The Selection Of An Interchange Configuration, Thomas Ernest Mulinazzi
Guidelines For The Selection Of An Interchange Configuration, Thomas Ernest Mulinazzi
JTRP Technical Reports
No abstract provided.
Factors Influencing The Performance Of Continuously Reinforced Concrete Pavements : Technical Paper, Asif Faiz, Eldon J. Yoder
Factors Influencing The Performance Of Continuously Reinforced Concrete Pavements : Technical Paper, Asif Faiz, Eldon J. Yoder
JTRP Technical Reports
No abstract provided.
The Specific Surface Of Hardened Portland Cement Paste As Measured By Low-Angle X-Ray Scattering, Douglas Windslow
The Specific Surface Of Hardened Portland Cement Paste As Measured By Low-Angle X-Ray Scattering, Douglas Windslow
JTRP Technical Reports
No abstract provided.
Dynamic Modulus Of Bituminous Mixtures As Related To Asphalt Type, Larry L. Yeager
Dynamic Modulus Of Bituminous Mixtures As Related To Asphalt Type, Larry L. Yeager
JTRP Technical Reports
No abstract provided.
Laboratory Evaluation Of The Response Of Reinforced Concrete To Internal Vibration, Phase I : Final Report, Olubayo Timothy Olateju
Laboratory Evaluation Of The Response Of Reinforced Concrete To Internal Vibration, Phase I : Final Report, Olubayo Timothy Olateju
JTRP Technical Reports
No abstract provided.
Quantification Of Pollutants In Surface Runoff From Agricultural Lands In Brookings County, South Dakota, Leland Lester Harms
Quantification Of Pollutants In Surface Runoff From Agricultural Lands In Brookings County, South Dakota, Leland Lester Harms
Electronic Theses and Dissertations
Surface runoff from snowmelt and rainfall was measured 1n eastern South Dakota from seven sites (7.18 to 18.69 acres) during 1971 and 1972. All sites had single crops which included corn, oats, pasture and hayland. All land was farmed under normal farming conditions. Samples were taken periodically throughout each runoff event, and a single composite sample was made from the individual samples for a particular site. The composite sample represented the entire runoff event. The amount of rainfall and the runoff flow were measured. Determinations on the composite sample included total coliform, fecal coliform, fecal streptococcus, soluble pesticides, specific conductance, …
Evaluation Of Factors Influencing Driveway Accidents : Interim Report, William Walter Mcguirk
Evaluation Of Factors Influencing Driveway Accidents : Interim Report, William Walter Mcguirk
JTRP Technical Reports
No abstract provided.
A Study Of Bus Transit Planning In Small Urban Areas, Michael Stephen Herman, Gilbert T. Satterly, William Louise Grecco, Kenneth W. Heathington
A Study Of Bus Transit Planning In Small Urban Areas, Michael Stephen Herman, Gilbert T. Satterly, William Louise Grecco, Kenneth W. Heathington
JTRP Technical Reports
No abstract provided.
Use Of Precast-Prestressed Concrete For Bridge Decks : Interim Report, Peter Karl Kropp
Use Of Precast-Prestressed Concrete For Bridge Decks : Interim Report, Peter Karl Kropp
JTRP Technical Reports
No abstract provided.