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1991

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Articles 31 - 60 of 505

Full-Text Articles in Civil and Environmental Engineering

Bs News Nov 1991

Bs News

Building Services Engineering

No abstract provided.


Green's Law Revisited: Tidal Long-Wave Propagation In Channels With Strong Topography, David A. Jay Nov 1991

Green's Law Revisited: Tidal Long-Wave Propagation In Channels With Strong Topography, David A. Jay

Civil and Environmental Engineering Faculty Publications and Presentations

Green's Law states that tidal long-wave elevation ζ and tidal transport Q vary with width b and depth h according to ζ ≌ b−1/2h−1/4 and Q ≌ b+1/2h+/4. This solution is of limited utility because it is restricted to inviscid, infinitesimal waves in channels with no mean flow and weak topography (those with topographic scale L ≫ wavelength λ). An analytical perturbation model including finite-amplitude effects, river flow, and tidal flats has been used to show that (1) wave behavior to lowest order is a function of only two nondimensional parameters representing, respectively, …


Disc Size Scale-Up In Rotating Biological Contactor System, Chi-Sheng Chang Oct 1991

Disc Size Scale-Up In Rotating Biological Contactor System, Chi-Sheng Chang

Theses

Disc size scale-up of prototype and small-scale RBC plants are successfully developed by applying the 114 data sets obtained from 12 RBC plants to the evaluation of percent sBOD remaining. These data analyses are performed by the least square method, therefore, the scale-up factors of the prototype and the small-scale are determined at different hydraulic loading. Furthermore, the relationship between scale-up factor and the disc diameter are established under the given flow rate, the number of stages, and the number of discs. A group of Curves are obtained and can be utilized for the full-scale RBC plant preliminary design. The …


Flexural Behavior Of Web Elements With Openings, Roger A. Laboube, Wei-Wen Yu, Ming-Yang Shan, K. D. Batson Oct 1991

Flexural Behavior Of Web Elements With Openings, Roger A. Laboube, Wei-Wen Yu, Ming-Yang Shan, K. D. Batson

CCFSS Library (1939 - present)

INTRODUCTION The purpose of this research project has been to investigate the flexural behavior of C-shaped members with web openings. Three common industry standard C-sections have been studied as summarized in the First and Second Progress Reports. To date two testing sequences have been completed. Test sequence No.1 investigated sections with web openings fabricated from nominally low yield strength material. Test sequence No.2 examined sections both with and without web openings. Specimens in test sequence No. 2 have nominally higher yield strengths. This report summarizes the test procedure and results of the research to date.


Ole Miss Engineer 1991 Oct 1991

Ole Miss Engineer 1991

Ole Miss Engineer

No abstract provided.


Evaluation Of Pe Film, James E. Funk, Theodore Hopwood Ii, Christopher M. Oberst Oct 1991

Evaluation Of Pe Film, James E. Funk, Theodore Hopwood Ii, Christopher M. Oberst

Kentucky Transportation Center Research Report

Laboratory tests were conducted to assess the ability of a 3-mil thick adhesive-backed polyethylene film (Polymask) to protect vehicle paint finishes from acid-rain damage. The laboratory tests employed conditions known to be relevant to actual service conditions including: 1) automotive paints of various colors, 2) simulated acid-rain solutions (of pH values from 2.2 to 5.5), and 3) service temperatures (120 to 160 °F). Laboratory tests included cyclic evaporation and soak tests similar to those employed in a previous series of tests for Toyota (1). Cyclic evaporation tests were performed for 12 cycles and the soak tests were performed for 5 …


Value Of Research, Kentucky Transportation Center Oct 1991

Value Of Research, Kentucky Transportation Center

Kentucky Transportation Center Research Report

Transportation research in Kentucky has been ongoing since 1914. The Road Materials Testing Laboratory was established that year at the University of Kentucky. Operation of the laboratory commenced in 1915 under the guidance of Professor D.V. Terrell who later became Dean of the College of Engineering. Dean Terrell often noted that the purpose of research was not to save money but to make it go farther. Public funding was never sufficient to accomplish all that various agency personnel considered essential nor that which the public deemed necessary and research was conducted most often for the purpose of gaining more for …


Bs News Oct 1991

Bs News

Building Services Engineering

No abstract provided.


Stability Of Hot Mix Asphalt With Petroleum Contaminated Soils, De-Rong Lobo Huang Sep 1991

Stability Of Hot Mix Asphalt With Petroleum Contaminated Soils, De-Rong Lobo Huang

Theses

One of the most effective ways of reducing petroleum contaminated soil is to use it in the production of hot mix asphalt. Both asphalt cement and petroleum contaminates have similar chemical properties. Therefore, The contaminates will be locked within the asphalt matrix without potential leaching.

The six different petroleum contaminate soil samples from New Jersey were used in this research. Since those samples have different physical properties (such as moisture content, specific gravity, plastic limit, liquid limit, grain size distribution) and chemical properties( such as concentration of the contaminate, and type of contaminates) the maximum amount of petroleum contaminated soil …


Appendix: List Of Participants [1991], Kentucky Transportation Center Sep 1991

Appendix: List Of Participants [1991], Kentucky Transportation Center

Kentucky's Annual Forum on Transportation

No abstract provided.


Wrap-Up Luncheon, Milo D. Bryant Sep 1991

Wrap-Up Luncheon, Milo D. Bryant

Kentucky's Annual Forum on Transportation

No abstract provided.


Surface Transportation Assistance Act 1991 Report, T. Peter Ruane Sep 1991

Surface Transportation Assistance Act 1991 Report, T. Peter Ruane

Kentucky's Annual Forum on Transportation

No abstract provided.


Kentucky's Legislative Perspective, Michael R. Moloney Sep 1991

Kentucky's Legislative Perspective, Michael R. Moloney

Kentucky's Annual Forum on Transportation

No abstract provided.


Construction Engineering And Management Option At The University Of Kentucky, James D. Stevens Sep 1991

Construction Engineering And Management Option At The University Of Kentucky, James D. Stevens

Kentucky's Annual Forum on Transportation

No abstract provided.


Advanced Institute For Transportation Systems Management, Tomas R. Leinbach Sep 1991

Advanced Institute For Transportation Systems Management, Tomas R. Leinbach

Kentucky's Annual Forum on Transportation

No abstract provided.


Kentucky Transportation Cabinet Scholarship Program: Initial Years At The University Of Kentucky, Jerry G. Rose Sep 1991

Kentucky Transportation Cabinet Scholarship Program: Initial Years At The University Of Kentucky, Jerry G. Rose

Kentucky's Annual Forum on Transportation

No abstract provided.


University Transportation Centers: Partners For The '90s, Charley V. Wootan Sep 1991

University Transportation Centers: Partners For The '90s, Charley V. Wootan

Kentucky's Annual Forum on Transportation

No abstract provided.


Strategic Highway Research Program Products, John O. Hibbs Sep 1991

Strategic Highway Research Program Products, John O. Hibbs

Kentucky's Annual Forum on Transportation

No abstract provided.


New Products Currently Used By The Kentucky Transportation Cabinet, Randy Gnau Sep 1991

New Products Currently Used By The Kentucky Transportation Cabinet, Randy Gnau

Kentucky's Annual Forum on Transportation

No abstract provided.


Recycling Innovations, Larry E. Epley Sep 1991

Recycling Innovations, Larry E. Epley

Kentucky's Annual Forum on Transportation

No abstract provided.


Albuquerque's Geographical Pavement Management System, Raymond Chavez Sep 1991

Albuquerque's Geographical Pavement Management System, Raymond Chavez

Kentucky's Annual Forum on Transportation

No abstract provided.


Traffic Safety And Public Information/Relations, William M. Seymour Sep 1991

Traffic Safety And Public Information/Relations, William M. Seymour

Kentucky's Annual Forum on Transportation

No abstract provided.


Storm Water Regulations, Mary Elizabeth Robson Sep 1991

Storm Water Regulations, Mary Elizabeth Robson

Kentucky's Annual Forum on Transportation

No abstract provided.


New Products Relative To The Cement Concrete Industry, John Mcchord Sep 1991

New Products Relative To The Cement Concrete Industry, John Mcchord

Kentucky's Annual Forum on Transportation

No abstract provided.


New Products Relative To Asphalts, Dean Blake Sep 1991

New Products Relative To Asphalts, Dean Blake

Kentucky's Annual Forum on Transportation

No abstract provided.


Road Surface Management Or Pavement Management For Local Governments, Bruce E. Matzke Sep 1991

Road Surface Management Or Pavement Management For Local Governments, Bruce E. Matzke

Kentucky's Annual Forum on Transportation

No abstract provided.


Kentucky Transportation Cabinet Product Evaluation Procedures, Kenny Fogle Sep 1991

Kentucky Transportation Cabinet Product Evaluation Procedures, Kenny Fogle

Kentucky's Annual Forum on Transportation

No abstract provided.


Stabilization And Modification Of Pavement Components, Ara Arman Sep 1991

Stabilization And Modification Of Pavement Components, Ara Arman

Kentucky's Annual Forum on Transportation

No abstract provided.


Kentucky Commercial Drivers' License Program, William R. Dodson Sep 1991

Kentucky Commercial Drivers' License Program, William R. Dodson

Kentucky's Annual Forum on Transportation

No abstract provided.


Fhwa--Research & Technology Program--What's New?, Leon N. Larson Sep 1991

Fhwa--Research & Technology Program--What's New?, Leon N. Larson

Kentucky's Annual Forum on Transportation

No abstract provided.