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Articles 1981 - 2010 of 2166

Full-Text Articles in Civil and Environmental Engineering

Irish H & V News Oct 1985

Irish H & V News

Building Services Engineering

No abstract provided.


Vibration Coupling In Continuous Belt And Band Systems, C. D. Mote, W-Z Ben Wu Sep 1985

Vibration Coupling In Continuous Belt And Band Systems, C. D. Mote, W-Z Ben Wu

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Small transverse oscillation of an endless band supported by wheels couples the response of the free spans of the band to oscillation of the wheels. The coupling arises from the finite curvature of the free spans of the band when its bending stiffness is finite. Significant modeling error can occur if a single span of the band is modeled as a simply supported, axially moving beam. The coupling provides an opportunity to dissipate vibration energy. Experiments and finite element analyses support the coupling discussion presented. © 1985 Academic Press Inc.


Irish H & V News Jul 1985

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News May 1985

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Apr 1985

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Mar 1985

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Feb 1985

Irish H & V News

Building Services Engineering

No abstract provided.


Biofilm Growths With Sucrose As Substrate, Ju-Chang Huang, Shoou Yuh Chang, Yow Chyun Liu, Zhanpeng Jiang Jan 1985

Biofilm Growths With Sucrose As Substrate, Ju-Chang Huang, Shoou Yuh Chang, Yow Chyun Liu, Zhanpeng Jiang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study was conducted to: (1) Evaluate the effect of DO on cell yield in a fixed film reactor using 1,000 mg/L sucrose as a substrate; (2) evaluate the correlations of the biofilm thickness and density with DO and their resultant substrate stabilization rates; and (3) examine the response of biofilm communities as a result of DO and biofilm thickness changes. Data obtained from this study indicate that DO has only a minor effect on the cell yield. However, the thickness of aerobic biofilm is definitely related to DO, or thickness (mm) = (2.08 x DO)/(9.2 + DO). The biofilm …


Length-Thermal Stress Relations For Composite Bridges, Jack H. Emanuel, Charles M. Taylor Jan 1985

Length-Thermal Stress Relations For Composite Bridges, Jack H. Emanuel, Charles M. Taylor

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Computer-assisted analysis was used to study the relation among uniform, linear, and nonlinear stress components thermally induced in a composite bridge section for hypothetical parameters of varying span lengths, number of spans, and support conditions, as well as for actual bridges. The results were verified by conventional methods of analysis. The following was concluded for prismatic (constant) sections: (1) For constant proportionality of span lengths, each of the three thermal stress components is independent of span length; (2) variation of the proportionality of span lengths affects only the linear stress component; (3) support reactions and deflections caused by thermal loading …


Irish H & V News Dec 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Nov 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Oct 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Sep 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Jul 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Jun 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Apr 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Mar 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Feb 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Smemax? Caution!, Jerome A. Westphal Jan 1984

Smemax? Caution!, Jerome A. Westphal

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The SMEMAX Transformation was tested on samples generated from log-Pearson Type III and Gumbel Extreme Value Type 1 distributions. Although the transformation results in a distribution with a skew near zero, it is not a true normal distribution. The coefficients of kurtosis for the transformed distributions are always less than three and when the parent distribution approaches a reverse-J shape, the transformed distribution is bimodal. When the skew coefficient of the logarithms of events is -0.5 or greater for samples from the log-Pearson Type III distribution, the SMEMAX procedure underestimates the magnitude of events with return periods of 50 yr …


A Stochastic Model For A Small-Time-Interval-Intermittent Hydrologic Process, Charles Darwin Morris Jan 1984

A Stochastic Model For A Small-Time-Interval-Intermittent Hydrologic Process, Charles Darwin Morris

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

A methodology is developed for the generation of intermittent small-time-interval (15-min.) precipitation. This methodology consists of three components: a probabilistic wet-and-dry sequence component; a Markovian precipitation distribution component; and a regressive spatial-distribution component. The theory of stochastic hydrologic modeling is described and procedures by which this theory can be applied to a hydrologic time series are presented. In particular, the application of the procedures to small-time-interval-intermittent hydrologic processes is given. The methodology is demonstrated by application to an actual precipitation network, the Boneyard Creek raingage network in Champaign-Urbana, Illinois, U.S.A. The trend in frequency of precipitation amounts from the 89-yr. …


Infiltration Formulas By Curve Number Procedure, Jerome A. Westphal Jan 1984

Infiltration Formulas By Curve Number Procedure, Jerome A. Westphal

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.


Irish H & V News Jan 1984

Irish H & V News

Building Services Engineering

No abstract provided.


H & V News Dec 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Nov 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Oct 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Sep 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Aug 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Jul 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News Jun 1983

H & V News

Building Services Engineering

No abstract provided.


H & V News May 1983

H & V News

Building Services Engineering

No abstract provided.