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Articles 1951 - 1980 of 2166

Full-Text Articles in Civil and Environmental Engineering

Irish Building Services News Dec 1988

Irish Building Services News

Building Services Engineering

No abstract provided.


Irish Building Services News Nov 1988

Irish Building Services News

Building Services Engineering

No abstract provided.


Irish H & V News Oct 1988

Irish H & V News

Building Services Engineering

No abstract provided.


A General Correction For Spontaneous Potential Well Logs In Fresh Water, Cary L. Mcconnell Jun 1988

A General Correction For Spontaneous Potential Well Logs In Fresh Water, Cary L. Mcconnell

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

A generalized empirical relationship was found which corrects spontaneous potential (SP) readings from well logs run in freshwater wells. The function was found by correlating measured and calculated spontaneous potentials. The calculated values are based on actual measured ionic content of groundwaters and are fully corrected for environmental effects and ion species. Without the empirical relationship the electrically equivalent to an NaCl solution resistivity, Rwe, is generally too low for fresh waters when computed with existing commercially available functions. The low Rwe makes the water appear saltier than it really is. One hundred sixty-two (162) individual formations from one hundred …


Irish H & V News May 1988

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Apr 1988

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Mar 1988

Irish H & V News

Building Services Engineering

No abstract provided.


The Distribution Of Chlorine And Iodine In Soil In The Vicinity Of Lead Mining And Smelting Operations, Bixby Area, S.E. Missouri, U.S.A., R. Fuge, M. J. Andrews, T. E. Clevenger, B. E. Davies, Nord L. Gale, C. F. Paveley, B. (Bobby) G. Wixson Jan 1988

The Distribution Of Chlorine And Iodine In Soil In The Vicinity Of Lead Mining And Smelting Operations, Bixby Area, S.E. Missouri, U.S.A., R. Fuge, M. J. Andrews, T. E. Clevenger, B. E. Davies, Nord L. Gale, C. F. Paveley, B. (Bobby) G. Wixson

Biological Sciences Faculty Research & Creative Works

Iodine and Cl are enriched in soils in the vicinity of the Magmont and Buick lead mines near Bixby, southeastern Missouri. The enrichments, up to 5.6 ppm I and 305 ppm Cl, are against regional background of 1.26 ppm I and 41 ppm Cl. The area of highest I and Cl is thought to reflect a zone of base metal sulphide mineralization occurring about 400 m below the surface. Iodine and Cl are also enriched in soils immediately adjacent to a tailings pond, hence these elements would appear to be leached from this source. A zone of enhanced I values …


Simpson-Vance House, Susie Van Kirk Jan 1988

Simpson-Vance House, Susie Van Kirk

Susie Van Kirk Papers

One of Eureka' s finest examples of Queen Anne architecture, the Simpson-Vance House was placed on the National Register of Historic Places in 1986. Also historically-significant, the house was associated with an important Eureka builder, James Simpson, and with the prominent John M. Vance family. Despite exterior alterations and adaptive use, the house remains architecturally intact with good potential for full restoration of its original, opulent splendor.


Dynamic Timoshenko Beam-Columns On Elastic Media, Franklin Y. Cheng, Chris P. Pantelides Jan 1988

Dynamic Timoshenko Beam-Columns On Elastic Media, Franklin Y. Cheng, Chris P. Pantelides

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Differential equations, stiffness coefficients, and fixed-end forces are formulated for a Timoshenko beam-column on an elastic foundation subjected to lateral time-dependent excitations and static axial loads. The theoretical formulation includes shear and bending deformations as well as rotatory inertia, with emphasis on two approaches. The two approaches differ in terms of the assumed shear component of the static axial load on the cross section. The first approach is based on the assumption that the shear component of the axial load is calculated from the total slope; in the second approach, the shear component of the axial load is calculated only …


Static Timoshenko Beam-Columns On Elastic Media, Franklin Y. Cheng, Chris P. Pantelides Jan 1988

Static Timoshenko Beam-Columns On Elastic Media, Franklin Y. Cheng, Chris P. Pantelides

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Two approaches are used to derive differential equations, stiffness coefficients, and fixed-end forces for the analysis of structural systems composed of Timoshenko beam-columns that may be supported by an elastic foundation. The analysis is for the evaluation of the critical static axial load and buckling mode-shapes of a structure with consideration of elastic media, bending, and shear deformations. The two approaches differ in terms of the assumed shear component of the static axial load on the cross section. The first approach is based on the assumption that the shear component of the axial load is calculated from the total slope, …


Irish H & V News Jan 1988

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Dec 1987

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Oct 1987

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Sep 1987

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Jun 1987

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Apr 1987

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Mar 1987

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Jan 1987

Irish H & V News

Building Services Engineering

No abstract provided.


Soil-Shrinkage Induced Structural Failure, David Newton Richardson, Richard Wesley Stephenson, Daniel Molloy Jan 1987

Soil-Shrinkage Induced Structural Failure, David Newton Richardson, Richard Wesley Stephenson, Daniel Molloy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This Paper Describes an Investigation into the Causes of Structural Damage to a Retirement Home and the Subsequent Rehabilitation Project. the Investigation Revealed that the Damage Was Caused by Shrinkage of the Soils Beneath the Structure's Foundation as a Result of Dry Weather, Shrinkage-Prone Characteristics of the soils, Deviation from the Original Design, and Poor Construction Techniques. the Structure Was Subsequently Underpinned to Rock using the Inclined Drilled Pier Method. Interaction between Design and Construction Professionals is Also Presented. © ASCE.


Irish H & V News Nov 1986

Irish H & V News

Building Services Engineering

No abstract provided.


Parametric Excitation Of An Axially Moving Band By Periodic Edge Loading, W-Z Ben Wu, C. D. Mote Oct 1986

Parametric Excitation Of An Axially Moving Band By Periodic Edge Loading, W-Z Ben Wu, C. D. Mote

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Simple torsion parametric resonance and combination torsion-bending parametric resonance can be excited in an axially moving band by an in-plane periodic edge loading that is normal to the longitudinal axis of the band. The model simulates band saws, belts, magnetic tapes and like systems under edge forces. Sum combination instabilities, in particular, permit the excitation of low frequency resonances by higher frequency edge forces. Simple bending, combination torsion-torsion, combination bending-bending and difference type parametric instabilities are not excited by periodic normal edge forces. The space of band parameters leading to parametric instability shrinks with increasing axial tension and with increasing …


Irish H & V News Oct 1986

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Jul 1986

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News May 1986

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Apr 1986

Irish H & V News

Building Services Engineering

No abstract provided.


Effects Of Cd(Ii) And Cu(Ii) On A Biofilm System, Shoou Yuh Chang, Ju-Chang Huang, Yow Chyun Liu Jan 1986

Effects Of Cd(Ii) And Cu(Ii) On A Biofilm System, Shoou Yuh Chang, Ju-Chang Huang, Yow Chyun Liu

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

There is little information available in the literature to describe the effect of heavy metals on a fixed-film biological waste treatment system. The primary objective of this study is to evaluate the toxic effect of Cd(II) and Cu(II) on a fixed-film biological reactor (rotating biological contractor) in treating a sugar waste. Different levels of cadmium (5 and 20 mg/L) and copper (1, 5, 10, 25, and 50 mg/L) were dosed to a three-stage RBC unit treating an influent of 300 mg/L sugar solution. Experimental results indicated that the treatment efficiency was not adversely affected by the presence of copper at …


Permeability Testing In The Triaxial Cell., Gregory W. Carpenter, Richard W. Stephenson Jan 1986

Permeability Testing In The Triaxial Cell., Gregory W. Carpenter, Richard W. Stephenson

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

It Has Been Suggested that a Triaxial Shear Test Chamber Can Be Used to Measure the Permeability of Low Permeability Soils. to Verify This, the Influence of a Number of Test Parameters on the Measured Coefficient of Permeability Was Investigated. Results Indicate Such Permeability Tests Should Be Performed on Samples Having a Minimum Diameter of 71. 1 Mm (2. 8 In.) and a Length to Diameter Ratio of 0. 5 to 1. 0. It Was Found that a Permeant Consisting of 1 G of Magnesium Sulfate Heptahydrate (Epsom Salt) Dissolved in 1 L of Deaired, Distilled Water is Adequate for …


Irish H & V News Jan 1986

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Dec 1985

Irish H & V News

Building Services Engineering

No abstract provided.