Open Access. Powered by Scholars. Published by Universities.®
Civil and Environmental Engineering Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Civil Engineering (11810)
- Environmental Engineering (6129)
- Transportation Engineering (5926)
- Physical Sciences and Mathematics (4621)
- Geotechnical Engineering (4589)
-
- Construction Engineering and Management (4457)
- Structural Engineering (4012)
- Environmental Sciences (2641)
- Other Civil and Environmental Engineering (2488)
- Materials Science and Engineering (2201)
- Architecture (2165)
- Hydraulic Engineering (1982)
- Social and Behavioral Sciences (1683)
- Mechanical Engineering (1521)
- Water Resource Management (1481)
- Earth Sciences (1336)
- Computer Engineering (1327)
- Architectural Engineering (982)
- Chemical Engineering (976)
- Electrical and Computer Engineering (922)
- Bioresource and Agricultural Engineering (919)
- Public Affairs, Public Policy and Public Administration (882)
- Metallurgy (874)
- Life Sciences (861)
- Construction Engineering (851)
- Structural Materials (845)
- Statistics and Probability (667)
- Data Storage Systems (636)
- Institution
-
- Missouri University of Science and Technology (7866)
- University of Kentucky (2796)
- Purdue University (2550)
- University of Nebraska - Lincoln (2277)
- Utah State University (2083)
-
- California Polytechnic State University, San Luis Obispo (1727)
- Brigham Young University (1183)
- Technological University Dublin (1063)
- Louisiana State University (1043)
- Portland State University (851)
- Chulalongkorn University (788)
- University of Texas at Arlington (699)
- Clemson University (661)
- University of Central Florida (628)
- Changsha University of Science and Technology (576)
- Universitas Indonesia (552)
- New Jersey Institute of Technology (549)
- Old Dominion University (548)
- Michigan Technological University (513)
- University of South Florida (509)
- University of Nevada, Las Vegas (468)
- Montana Tech Library (464)
- Marquette University (441)
- University of Arkansas, Fayetteville (437)
- Air Force Institute of Technology (421)
- Western University (350)
- University of New Mexico (324)
- Ministry of Higher and Secondary Specialized Education of the Republic of Uzbekistan (320)
- University of Colorado Law School (304)
- University of Texas at El Paso (281)
- Keyword
-
- Engineering (992)
- Construction (842)
- Building (478)
- Concrete (455)
- Architecture (428)
-
- Sustainability (428)
- Plumbing (346)
- Kentucky transportation (332)
- Montana (297)
- Transportation (284)
- Safety (281)
- Climate change (240)
- UWRL (231)
- Groundwater (216)
- Department of Civil, Environmental, and Geospatial Engineering (204)
- Bridge (203)
- Kentucky (199)
- Durability (195)
- Civil Engineering (187)
- Bridges (183)
- Design (177)
- Water quality (177)
- Optimization (176)
- Modeling (171)
- Applied sciences (166)
- Pavement (162)
- Machine learning (158)
- Corrosion (142)
- NDOR (139)
- GIS (136)
- Publication Year
- Publication
-
- International Conference on Case Histories in Geotechnical Engineering (2055)
- Kentucky Transportation Center Research Report (1820)
- International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics (1566)
- Theses and Dissertations (1335)
- Civil, Architectural and Environmental Engineering Faculty Research & Creative Works (1249)
-
- JTRP Technical Reports (1127)
- CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018) (1036)
- Construction Management (998)
- Electronic Theses and Dissertations (662)
- International Congress on Environmental Modelling and Software (629)
- Masters Theses (598)
- Reports (583)
- Journal of China & Foreign Highway (576)
- Department of Agricultural and Biological Systems Engineering: Faculty Publications (574)
- Civil and Environmental Engineering Faculty Publications (562)
- Kentucky's Annual Forum on Transportation (503)
- Chulalongkorn University Theses and Dissertations (Chula ETD) (478)
- Building Services Engineering (476)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (471)
- Makara Journal of Technology (436)
- Civil and Environmental Engineering Faculty Publications and Presentations (425)
- Theses (420)
- Bachelors Theses and Reports, 1928 - 1970 (416)
- LSU Master's Theses (406)
- Civil and Environmental Engineering (389)
- USF Tampa Graduate Theses and Dissertations (387)
- Purdue Road School (368)
- Nebraska Department of Transportation: Research Reports (335)
- Civil Engineering Theses - Archive (331)
- Publications (331)
- Publication Type
Articles 37201 - 37230 of 39882
Full-Text Articles in Civil and Environmental Engineering
Hydrologic Inventory Of The Bear River Study Unit, Frank W. Haws
Hydrologic Inventory Of The Bear River Study Unit, Frank W. Haws
Reports
Purpose and Scope of Study.
The 1963 Utah State Legislature authorized the Utah Water and Power Board (now the Utah Division of Water Resources) to develop a state water plan in order to give coordination and direction to the activities of all state and federal agencies concerned with Utah's water resources. To facilitate the development of this plan, a proposal was submitted through the State Planning Coordinator in the Governor's Office to the Urban Renewal Administration of the Housing and Home Finance Agency. Funding was approved effective May 19, 1966, under the Urban Planning Assistance Program authorized by Section 701 …
A Study Of Water Institutions In Utah And Their Influence On The Planning, Developing, And Managing Of Water Resources, Frank W. Haws
A Study Of Water Institutions In Utah And Their Influence On The Planning, Developing, And Managing Of Water Resources, Frank W. Haws
Reports
Preface: For the purposes of this study an institution is defined as a formal framework or organization through which men pool their efforts and resources to accomplish specific purposes. Included in this framework is the pattern of organization and authority, the legal structure and the governmental rules and regulations that must be adhered to during the process of reaching the stated goals. The institutions related to water resources are many and varied and include: political governments (state, county, city, etc.); subdivisions of government created by legislative consent such as irrigation districts, special improvement districts, metropolitan water companies (a department in …
Effects Of Baffles On The Performance Of Anerobic Waste Stabilization Ponds, Stephen B. Nielson, E. Joe Middlebrooks, Donald B. Porcella
Effects Of Baffles On The Performance Of Anerobic Waste Stabilization Ponds, Stephen B. Nielson, E. Joe Middlebrooks, Donald B. Porcella
Reports
The performance of three baffled model ponds was monitored and compared to the performance of an unbaffled model pond utilizing four hydraulic and organic loading rates. All four ponds were operated simultaneously under the same environmental conditions using a synthetic wastewater.
Removal of organic carbon by the biological system in the different pond configurations only varied from 94-98 percent at the longest detention time (15 days); however, a considerable effect of the baffling was observed at the lower detention times. At a hydraulic detention time of 1.5 days the percent carbon removal was 53, 60, 62, and 70 percent for …
Effects Of Temperature On The Toxicity To The Aquatic Biota Of Waste Discharges - A Compilation Of The Literature, E. Joe Middlebrooks, M. J. Gaspar, R. D. Gaspar, J. H. Reynolds, Donald B. Porcella
Effects Of Temperature On The Toxicity To The Aquatic Biota Of Waste Discharges - A Compilation Of The Literature, E. Joe Middlebrooks, M. J. Gaspar, R. D. Gaspar, J. H. Reynolds, Donald B. Porcella
Reports
An extensive compiliation and general evaluation of the literature is presented which describes the temperature interaction with toxicity. Recent literature is summarized and made accessible along with a few generalized relationships such that researchers may design studies in a manner that will increase the utility of their results. A detailed indexing system is employed which makes the information contained in the report accessible by author, toxicant, and text organism. Summary tables of the most pertinent literature are also presented for easy subject retrieval. It was concluded that very little uniformity in experimental design is found between experiments on temperature-toxicity relationships, …
Modeling The Eutrophication Process: Workshop Proceedings, P. H. Mcgauhey, E. B. Welch, C. A. Rock, J. D. Krull, D. P. Larsen, H. T. Mercier, K. W. Malueg, D. D. Huff, J. F. Koonce, W. R. Ivarson, P. R. Weiler, E. H. Dettmann, R. F. Harris, G. D. Cooke
Modeling The Eutrophication Process: Workshop Proceedings, P. H. Mcgauhey, E. B. Welch, C. A. Rock, J. D. Krull, D. P. Larsen, H. T. Mercier, K. W. Malueg, D. D. Huff, J. F. Koonce, W. R. Ivarson, P. R. Weiler, E. H. Dettmann, R. F. Harris, G. D. Cooke
Reports
No abstract provided.
Bibliography Of Latin American Agricultural Production And Development. Volume I: Inputs And Outputs In Crop And Livestock Production, Allen Lebaron, Samuel Daines, Percy Aitken, Ruby Johnson, Angeles Ely
Bibliography Of Latin American Agricultural Production And Development. Volume I: Inputs And Outputs In Crop And Livestock Production, Allen Lebaron, Samuel Daines, Percy Aitken, Ruby Johnson, Angeles Ely
Reports
No abstract provided.
Bibliography Of Latin American Agricultural Production And Development. Volume Ii: General Agricultural Planning, Background, And Statistical Studies, Allen Lebaron, Samuel Daines, Percy Aitken, Ruby Johnson, Angeles Ely
Bibliography Of Latin American Agricultural Production And Development. Volume Ii: General Agricultural Planning, Background, And Statistical Studies, Allen Lebaron, Samuel Daines, Percy Aitken, Ruby Johnson, Angeles Ely
Reports
No abstract provided.
A Review Of Utah Water Research Laboratory, Utah Water Research Laboratory
A Review Of Utah Water Research Laboratory, Utah Water Research Laboratory
Reports
No abstract provided.
Ecological Implications Of Dimethyl Mercury In An Aquatic Food Chain, Lawrence P. Kolb, Donald B. Porcella, E. Joe Middlebrooks
Ecological Implications Of Dimethyl Mercury In An Aquatic Food Chain, Lawrence P. Kolb, Donald B. Porcella, E. Joe Middlebrooks
Reports
Laboratory studies indicate dimethyl mercury may be a major product of microbial methylation of inorganic mercury. Although another methylation product, monomethyl mercury, has been extensively studied, the physical, chemical, and biologicl factors affecting the transport and food chain distribution of dimethyl mercury have remained unclear. This report presents results of laboratory studies of volatilization rates from water as a function of temperature and mixing conditions, uptake kinetics and equilibrium concentrations in algae,
Sorption Kinetics Part I: A Laboratory Investigation Of Six Proposed Rate Laws Using Batch Reactors, David W. Hendricks, Laxman G. Kuratti
Sorption Kinetics Part I: A Laboratory Investigation Of Six Proposed Rate Laws Using Batch Reactors, David W. Hendricks, Laxman G. Kuratti
Reports
Six proposed rate equations for sorption kinetics have been investigated by laboratory batch experiments involving some 270 individual “runs” to determine sorption uptake with time for varying conditions of initial sorbate concentration, temperature, and sorbent species. The sorbate selected was rhodamine-B dye, used because it will sorb readily and is easily measured. Two sorbents, Dowex 50 resin, and Filtrasorb 200 activated carbon were used. Temperature conditions were 10, 20, 30, and 40°C, and concentrations ranged from .0008 to 400 micrograms per ml, rhodamine-B. Analysis of data was computer automated, requiring as input only test conditions, instrument readings, dilutions, and corresponding …
Interregional Planning Of Water Resources Allocations By Systems Analysis Approach , John E. Keith, Jay C. Andersen, Alton B. King, Mark H. Anderson, Calvin G. Clyde, Daniel H. Hoggan
Interregional Planning Of Water Resources Allocations By Systems Analysis Approach , John E. Keith, Jay C. Andersen, Alton B. King, Mark H. Anderson, Calvin G. Clyde, Daniel H. Hoggan
Reports
No abstract provided.
The Economic Efficiency Of Inter-Basin Agricultural Water Transfers In Utah: A Mathematical Programming Approach, John E. Keith, Jay C. Andersen, Calvin G. Clyde
The Economic Efficiency Of Inter-Basin Agricultural Water Transfers In Utah: A Mathematical Programming Approach, John E. Keith, Jay C. Andersen, Calvin G. Clyde
Reports
The economic efficiency of water development in Utah, including transfer systems, has seldom been examined, not has the costs of public policies which result in deviations from efficient allocations. In order that public officials be better informed about water allocations, the present effort examines the efficient allocation of water in time frames up to 2020 under several alternative assumtions and calculates that cost of alternative policies. Using mathematical programming techniques, a computer model is developed to determine the supply (marginal cost) and demand (value or marginal product) relationships for agricultural water, given depletions for municipal and industrial (M&I) and wetland …
Integrated Measurement Of Soil Moisture By Use Of Radio Waves, Duane G. Chadwick
Integrated Measurement Of Soil Moisture By Use Of Radio Waves, Duane G. Chadwick
Reports
An integrated value of soil moisture can be determine dby measuring the attenuation of vertically-polarized surface radio waves taht are propagated over the ground between a transmitting and receiving atenna. Soil moisture values in the root-zone region were measured over longitudinal distances typically ranging from 50 feet to 600 feet with good results. Integrated soil moisture measurements over greater distances are also possible. Received field strength of propaged radio surface waves closely matches theoretical calculations. The measurement is easily made and does not disturb the soil. Dense, green vegetation, such as alfalfa or corn, causes errors in measurement accuracy. Less …
Social, Economic, Environmental, And Technical Factors Influencing Water Reuse, A. Bruce Bishop, Suravuth Pratishthananda, John Keith, Craig Colton, A. Berry Crawford
Social, Economic, Environmental, And Technical Factors Influencing Water Reuse, A. Bruce Bishop, Suravuth Pratishthananda, John Keith, Craig Colton, A. Berry Crawford
Reports
A growing population together with rising per capita income has resulted in increased demand for water for virtually all uses. At the same time there has been increased public concern for maintaining the quality of streams for recreation, sight-seeing, and other social uses, and to conserve environmental values. A partial answer to these conflicts in water use and management is more extensive waste water reclamation and reuse. Heretofore, water salvage and reuse has been mainly practiced in specific operational cases, such as recycling industrial process water, or on an ad hoc basis, such as a series of diversions and subsequent …
A Preliminary Model Of The Hydrologic-Sociologic Flow System Of An Urban Area, Wade H. Andrews, J. Paul Riley, Craig W. Colton, George B. Shih, Malcolm B. Masteller
A Preliminary Model Of The Hydrologic-Sociologic Flow System Of An Urban Area, Wade H. Andrews, J. Paul Riley, Craig W. Colton, George B. Shih, Malcolm B. Masteller
Reports
This report describes the first phase of a larger study which is directed toward the development of a general technique for analyzing and solving urban metropolitan hydrologic problems through a joint consideration of both the physical and social dimensions. This report is limited to the preliminary work of identification of social variables, the first steps in assigning mathematical values to them, and developing a mathematical format for these variables. In addition, the physical-hydrologic system is identified for purposes of clarifying the elements in that system. The ultimate objective of the entire study is directed toward discovering a theoretical and generally …
The Demand For Agricultural Water In Utah, Mark H. Anderson, Jay C. Andersen, John E. Keith, Calvin G. Clyde
The Demand For Agricultural Water In Utah, Mark H. Anderson, Jay C. Andersen, John E. Keith, Calvin G. Clyde
Reports
Water is recognized as an essential element in Utah's agricultural economy. It is the subject of much controvery and litigation and yet most discussion of the subject is based on opinions and prejudice rather than upon the basis of sound scientific evidence. This paper attempts to provide some of the economic information necessary for sound decisions in the development and use of Utah's water resources with respect to agriculture. Utah has been divided into ten drainage regions (hydrologi subregions) and the presently irrigated and potentially irrigable land according to land class were estimated for each country or portion of a …
Solving Three-Dimensional Potential Flow Problems By Means Of An Inverse Formulation And Finite Differences, Allen L. Davis, Roland W. Jeppson
Solving Three-Dimensional Potential Flow Problems By Means Of An Inverse Formulation And Finite Differences, Allen L. Davis, Roland W. Jeppson
Reports
A finite difference method is developed to solve the three-dimensional, steady, incompressible, potential flow equations obtained by using a potential function, o, and two mutually orthogonal stream functions, u and u*, to describe the flow. Problems are formulated in an inverse space where the potential function and the two stream functions are the independent variables, and the Cartesian coordinates x, y, and z are the dependent variables. The boundaries of the problem in the physical space, including the free surface, have known positions in the inverse space, so trial and error adjustments to the positions of the boundaries are unnecessary. …
The Dynamic Response Of Continuous Beams And Plates, Robert L. Dineen
The Dynamic Response Of Continuous Beams And Plates, Robert L. Dineen
Civil Engineering ETDs
The objective of this investigation is to determine the complete response of undamped structural systems to time-dependent loads. Two systems, continuous beams and plates with equally spaced interior supports, are examined. Both have distributed mass and experience small linearly elastic deflections. The problems are formulated using the discrete mechanics method in which the response of a typical element of the system is first determined. A difference equation for the moments at the support locations is then derived by satisfying the force and compatibility conditions between adjacent elements. Finally, a closed form solution of this equation is obtained in terms of …
The Safety Barrier Dilemma, James H. Havens, Don L. Cornette, William M. Seymour
The Safety Barrier Dilemma, James H. Havens, Don L. Cornette, William M. Seymour
Kentucky Transportation Center Research Report
"Ran-off-the-road" fatal accidents currently account for approximately 65 percent of all freeway fatalities (1). Accordingly, ever-increasing emphasis has been given to the development of effective safety barrier systems, from guardrails to earth berms to median barriers to energy absorbing barriers and mires. However, highway designers have also recognized that safety barriers are hazards in themselves, misfits in the highway environment, and that they are items to be eliminated wherever possible. In a study of fatal accidents on the Interstate Highway System, it was found that fixed object collisions have been the leading source of fatalities, accounting for 43 percent …
Characteristics Of Outdoor Recreational Travel, Jerry G. Pigman, John A. Deacon, Robert C. Deen
Characteristics Of Outdoor Recreational Travel, Jerry G. Pigman, John A. Deacon, Robert C. Deen
Kentucky Transportation Center Research Report
The purpose of this investigation was to examine the characteristics of travel to outdoor recreational areas in Kentucky. Data were obtained by means of a license-plate, origin-destination survey at 160 sites within 42 recreational areas and by means of a continuous vehicle counting program at eight of these sites. A computer algorithm was developed for error detection and subsequent adjustment of the volume data as necessitated by occasional malfunction of the traffic recorders and vandalism. Vehicle occupancy was found to depend of the type of recreational area, distance traveled, and vehicle type. Occupancy increased with increasing distance and was greatest …
Tar Concrete Pavement Construction And Performance, Jerry G. Rose
Tar Concrete Pavement Construction And Performance, Jerry G. Rose
Kentucky Transportation Center Research Report
In 1969, a 6.6-mile section of relocated KY 15 in Perry and Knott Counties was paved utilizing coal-tar (RT-12) concrete base and surface. This project was authorized under the Appalachian Regional Development Act of 1965 and was designated as experimental as a means of implementing a section of the Act.
Two nearby sections of KY 15, containing asphalt (PAC-5) concrete base and surface, were designated as control sections and used for comparison purposes. With the exception of the bituminous material, the experimental and control sections were purposefully made equal in all other respects. A design soil CBR of 9 was …
A Pavement Design Schema, James H. Havens, Robert C. Deen, Herbert F. Southgate
A Pavement Design Schema, James H. Havens, Robert C. Deen, Herbert F. Southgate
Kentucky Transportation Center Research Report
Elastic theory and 40 years of empirical flexible pavement design in Kentucky have been joined into the design system presented herein. A brief discussion is presented of the coupling mechanisms relating experience to theoretical analyses. An annotated design procedure is presented as a guide for pavement designers. Design nomographs account for a wide range of input parameters and permit the designer a wide choice of alternative thickness designs.
Mercury-Filled Settlement Gage, Tommy C. Hopkins, Robert C. Deen
Mercury-Filled Settlement Gage, Tommy C. Hopkins, Robert C. Deen
Kentucky Transportation Center Research Report
A description is given of a remote sensing, multiple-point, mercury-filled settlement gage designed for measuring in-place settlements. The gage consists of settlement units positioned at locations where settlement measurements are desired and a monitoring unit located outside of construction limits. Settlement readings are observed on a mercury manometer located at the monitoring site and are· equal to the differences in initial and subsequent pressure head readings. Comparisons of measurements obtained at a highway construction site from mercury gage settlement units and conventional settlement platforms are presented and show very good agreement. With the mercury gage, a large amount of settlement …
Elements Of Median Design In Relation To Accident Occurrence, Gordon R. Garner, Robert C. Deen
Elements Of Median Design In Relation To Accident Occurrence, Gordon R. Garner, Robert C. Deen
Kentucky Transportation Center Research Report
The purpose of this study was to compare the accident histories of different median types and to provide verification of generally recommended median widths and slopes. A major limitation of the analyses was the small number of possible combinations of median width and cross slope available for study.
The analyses reported provided evidence from accident histories to support the general requirement that wider medians are safer medians. It was indicated that medians should be a minimum of 30-40 feet wide for high speed facilities and that flat slopes should be provided; 4:1 slopes are inadequate for medians less than 60 …
Spraygrip Anti-Skid Treatments, Kentucky Turnpike, Jerry G. Rose
Spraygrip Anti-Skid Treatments, Kentucky Turnpike, Jerry G. Rose
Kentucky Transportation Center Research Report
No abstract provided.
Energy Absorption Devices, James H. Havens
Energy Absorption Devices, James H. Havens
Kentucky Transportation Center Research Report
An ironic consequence of modern highways has been the emergence of new types of accidents. Recent investigations (1) have shown that "running off the road" may be the largest, single cause of fatalities on limited access, multilane roads. According to the 1967 Report of the Special AASHO Traffic Safety Committee ("Yellow Book") (2) the rate of accidents in gore areas is approximately four times that of ran-off-the-road accidents at other locations. Gore areas which are not or cannot be modified to provide favorable terrain and unobstructed recovery zones have been recognized as misfits in the environs of the highway. Crash …
Master Site Development Plan : University Of North Florida, Jacksonville, Florida, Reynolds Smith Hills
Master Site Development Plan : University Of North Florida, Jacksonville, Florida, Reynolds Smith Hills
Campus Buildings and Sites Textual
A book on building and developing University of North Florida. PALMM
Accident And Economic Analyses Of Access Control On Several Bypasses, Kenneth R. Agent
Accident And Economic Analyses Of Access Control On Several Bypasses, Kenneth R. Agent
Kentucky Transportation Center Research Report
In an effort to relieve congestion on urban streets, bypasses have been built to provide through traffic a route by which the downtown areas can be avoided.
In many cases, though, bypasses have created a serious accident potential because they were built with at-grade intersections and no access control. This leads to commercial developments along the bypass and congestion at major intersections. Bypasses were constructed in this manner because of the high initial cost involved in building a bypass with access control and grade-separated interchanges. There is, therefore, a need to determine if the accident cost savings, along with time …
A Rheological Study Of Cohesive Soils, David L. Allen
A Rheological Study Of Cohesive Soils, David L. Allen
Kentucky Transportation Center Research Report
An attempt has been made to describe the mechanistic behavior of remolded and undisturbed soils by application of the principles of rheology. This was accomplished by approximating and comparing the data obtained from transient creep tests and relaxation tests to the mathematical behavior of mechanical impedance models. The data were also analyzed by transforming static moduli and compliances into dynamic values by the application of Fourier transforms. Distribution functions of relaxation and retardation times, obtained by the application of LaPlace transforms, are presented.
All soils tested exhibited similar dynamic moduli and complince curves indicating that soil type had little effect …
Construction Of Full-Depth Asphaltic Concrete Pavements, Jerry D. Ross, Herbert F. Southgate
Construction Of Full-Depth Asphaltic Concrete Pavements, Jerry D. Ross, Herbert F. Southgate
Kentucky Transportation Center Research Report
Considerable attention has been devoted to the design and use of full-depth asphaltic concrete pavements. An experimental full-depth pavement was constructed on the Cannonsburg-Ashland Road (US 60), and the mechanical response of each asphaltic concrete layer to static and dynamic loading has been tested during construction.
This report is a documentation of section designs and construction procedures and summarily presents construction test results to be used in future analyses.