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Articles 1 - 30 of 36

Full-Text Articles in Civil Engineering

Development And Verification Of A Laboratory Model For Use In The Study Of A Continuous Flow Pressurized Activated Sludge Process, Wayne Frederick Nolte Dec 1979

Development And Verification Of A Laboratory Model For Use In The Study Of A Continuous Flow Pressurized Activated Sludge Process, Wayne Frederick Nolte

Dissertations

Investigations concerning the responses of domestic wastewater treated at elevated pressures have demonstrated an acceleration in the rate of biological assimilation of the waste material. The literature is not extensive, but presents much conflicting data. There has been a lack of a coherent approach to the investigation of pressure in wastewater treatment. This demonstrates the need for standard testing apparatus and procedures.

A bench scale pressurized activated sludge process was designed and constructed. The apparatus was tested over a broad range of conditions and was found to give reproducible results. Kinetic responses of the pressurized process are presented.


Irish H & V News - November & December Combined Nov 1979

Irish H & V News - November & December Combined

Building Services Engineering

No abstract provided.


Irish H & V News Oct 1979

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Sep 1979

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Aug 1979

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Jun 1979

Irish H & V News

Building Services Engineering

No abstract provided.


The Use Of Natural Sorbents For The Treatment Of Industrial Sludge Leachate, Mung Shium Jack Sheih May 1979

The Use Of Natural Sorbents For The Treatment Of Industrial Sludge Leachate, Mung Shium Jack Sheih

Dissertations

A sorbent treatment process has been developed which uses natural clay soils and fly ashes as sorbents in the treatment of the hazardous contaminants of potential sludge leachate emanating from industrial landfills. Natural sorbents (i.e., vermiculite, illite, kaolinite, zeolite, acidic and basic fly ashes) were evaluated for the removal of specific cations, anions, and organics from leachates generated from three industrial sludges (i.e., calcium fluoride, metal finishing, and petroleum). The laboratory results indicate that, rather than a single sorbent, a combination of acidic and basic sorbents in a layered system is required to reduce for the measurable contaminants present in …


Irish H & V News Apr 1979

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News - April & May Combined Apr 1979

Irish H & V News - April & May Combined

Building Services Engineering

No abstract provided.


Irish H & V News Feb 1979

Irish H & V News

Building Services Engineering

No abstract provided.


Stress-Strain Properties Of Compacted Modified Memphis Loess, Danny Lloyd Kerns Jan 1979

Stress-Strain Properties Of Compacted Modified Memphis Loess, Danny Lloyd Kerns

Masters Theses

"A study was made of the stress-strain characteristics of compacted samples of a modified loessial soil obtained near Memphis, Tennessee. The study consisted of compacting samples at a constant water content and at unit weights of 92, 96 and 100 pounds per cubic foot (1470, 1540 and 1600 kg/m3). Triaxial tests were performed on unsaturated compacted specimens to obtain stress-strain-volume change data. These data were used to determine stress-dependent functions for tangent modulus and Poisson's ratio"--Abstract, page ii.


Study Of The Segmental Box Girder Bridge At Turkey Run: Construction, Instrumentation, And Data Collection : Interim Report, Stephen P. Wanders, Douglas Windslow, Charles D. Sutton Jan 1979

Study Of The Segmental Box Girder Bridge At Turkey Run: Construction, Instrumentation, And Data Collection : Interim Report, Stephen P. Wanders, Douglas Windslow, Charles D. Sutton

JTRP Technical Reports

No abstract provided.


Irish H & V News Jan 1979

Irish H & V News

Building Services Engineering

No abstract provided.


The Effect Of Laboratory Compaction On The Unconsolidated Undrained Strength Behavior Of A Highly Plastic Clay : Interim Report, David W. Weitzel, C. W. Lovell Jan 1979

The Effect Of Laboratory Compaction On The Unconsolidated Undrained Strength Behavior Of A Highly Plastic Clay : Interim Report, David W. Weitzel, C. W. Lovell

JTRP Technical Reports

No abstract provided.


Analysis Of Hardened Concrete For Admixture Content : Interim Report, Larry Chester Muszynski Jan 1979

Analysis Of Hardened Concrete For Admixture Content : Interim Report, Larry Chester Muszynski

JTRP Technical Reports

No abstract provided.


Traffic Speed Report No. 107 : Interim Report, James Robert Mekemson, George K. Stafford Jan 1979

Traffic Speed Report No. 107 : Interim Report, James Robert Mekemson, George K. Stafford

JTRP Technical Reports

No abstract provided.


Evaluation And Development Of Synthetic Trip Distribution Modeling Techniques As Applied To Small Urban Areas : Interim Report, James Robert Mekemson, Kumares C. Sinha Jan 1979

Evaluation And Development Of Synthetic Trip Distribution Modeling Techniques As Applied To Small Urban Areas : Interim Report, James Robert Mekemson, Kumares C. Sinha

JTRP Technical Reports

No abstract provided.


Methodology For Evaluating The Impacts Of Energy, National Economy, And Public Policies On State Highway Financing And Performance, Fred L. Mannering Jan 1979

Methodology For Evaluating The Impacts Of Energy, National Economy, And Public Policies On State Highway Financing And Performance, Fred L. Mannering

JTRP Technical Reports

No abstract provided.


The Effect Of Laboratory Compaction On The Shear Behavior Of A Highly Plastic Clay After Saturation And Consolidation : Interim Report, James M. Johnson, C. W. Lovell Jan 1979

The Effect Of Laboratory Compaction On The Shear Behavior Of A Highly Plastic Clay After Saturation And Consolidation : Interim Report, James M. Johnson, C. W. Lovell

JTRP Technical Reports

No abstract provided.


Some Effects Of Unwarranted Traffic Signals, Chung-Cha Liu Jan 1979

Some Effects Of Unwarranted Traffic Signals, Chung-Cha Liu

JTRP Technical Reports

No abstract provided.


The Effects Of Simplifying Traffic-Zone And Street-Network Systems On The Accuracy Of Traffic Assignments In Small Urban Areas In Indiana : Interim Report, Edward Wilson Hanscom, Kumares C. Sinha Jan 1979

The Effects Of Simplifying Traffic-Zone And Street-Network Systems On The Accuracy Of Traffic Assignments In Small Urban Areas In Indiana : Interim Report, Edward Wilson Hanscom, Kumares C. Sinha

JTRP Technical Reports

No abstract provided.


The Effect Of Compacted Prestress On Compacted Shale Compressibility : Interim Report, Gary Robert Witsman, C. W. Lovell Jan 1979

The Effect Of Compacted Prestress On Compacted Shale Compressibility : Interim Report, Gary Robert Witsman, C. W. Lovell

JTRP Technical Reports

No abstract provided.


Characterization Of Cold Mixed Asphalt Emulsion Treated Bases, Michael S. Mamlouk Jan 1979

Characterization Of Cold Mixed Asphalt Emulsion Treated Bases, Michael S. Mamlouk

JTRP Technical Reports

No abstract provided.


Photogrammetric Digitizing System, Frank Richard Gorshe Jan 1979

Photogrammetric Digitizing System, Frank Richard Gorshe

Dissertations and Theses

The acquisition of terrain data from aerial photography using digital photogrammetric methods gives the engineer and planner an economical alternative to conventional ground surveys. This paper describes a complete photogrammetric digitizing system developed for the Portland District Army Corps of Engineers. The hardware of the system consists of a

Wild AlO first order stereoplotter interfaced to an Altec AC-74 coordinate digitizer which is interfaced to both a Hewlett Packard 9810A programmable calculator and a Digi-Data nine-track magnetic tape recorder. The software of the system consists of photogrammetric routines developed for online computation by the programmable calculator and a sophisticated FORTRAN …


The Effect Of Laboratory Compaction On The Compressibility Of Compacted Highly Plastic Clay : Interim Report, Albert Dibernardo, C. W. Lovell Jan 1979

The Effect Of Laboratory Compaction On The Compressibility Of Compacted Highly Plastic Clay : Interim Report, Albert Dibernardo, C. W. Lovell

JTRP Technical Reports

No abstract provided.


Development And Use Of A Computer Simulation Model For The Evaluation Of Design And Control Alternatives For Intersections Of Minor Road With Multi-Lane Rural Highways: Selection Of Simulation Model: Interim Report, Ahmed Essam Radwan, Kumares C. Sinha, Harold L. Michael Jan 1979

Development And Use Of A Computer Simulation Model For The Evaluation Of Design And Control Alternatives For Intersections Of Minor Road With Multi-Lane Rural Highways: Selection Of Simulation Model: Interim Report, Ahmed Essam Radwan, Kumares C. Sinha, Harold L. Michael

JTRP Technical Reports

No abstract provided.


Development And Use Of A Computer Simulation Model For The Evaluation Of Design And Control Alternatives For Intersections Of Minor Road With Multi-Lane Rural Highways: Field Studies And Model Validation: Interim Report, Ahmed Essam Radwan, Kumares C. Sinha, Harold L. Michael Jan 1979

Development And Use Of A Computer Simulation Model For The Evaluation Of Design And Control Alternatives For Intersections Of Minor Road With Multi-Lane Rural Highways: Field Studies And Model Validation: Interim Report, Ahmed Essam Radwan, Kumares C. Sinha, Harold L. Michael

JTRP Technical Reports

No abstract provided.


Development And Use Of A Computer Simulation Model For The Evaluation Of Design And Control Alternatives For Intersections Of Minor Road With Multi-Lane Rural Highways: Model Application: Interim Report, Ahmed Essam Radwan, Kumares C. Sinha, Harold L. Michael Jan 1979

Development And Use Of A Computer Simulation Model For The Evaluation Of Design And Control Alternatives For Intersections Of Minor Road With Multi-Lane Rural Highways: Model Application: Interim Report, Ahmed Essam Radwan, Kumares C. Sinha, Harold L. Michael

JTRP Technical Reports

No abstract provided.


Validation And Practical Application Of The Utcs-1s Network Simulation Model On An Urban Arterial Street : Interim Report, Bruce Allen Hillson Jan 1979

Validation And Practical Application Of The Utcs-1s Network Simulation Model On An Urban Arterial Street : Interim Report, Bruce Allen Hillson

JTRP Technical Reports

No abstract provided.


Traffic Speed Report No. 109 : Interim Report, Richard Philip Guenthner, George K. Stafford Jan 1979

Traffic Speed Report No. 109 : Interim Report, Richard Philip Guenthner, George K. Stafford

JTRP Technical Reports

No abstract provided.