Architecture Commons^™

Phytoremediation: Plant Uptake Of Atrazine And Role Of Root Exudates, Joel G. (Gerard) Burken, Jerald L. Schnoor

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Phytoremediation is an Emerging Technology for Degradation of Organic Chemicals. the Potential of Phytoremediation in the Cleanup of Contaminated Sites and Prevention of Non-Point-Source Pollution Was Examined with the Pesticide Atrazine in Two Experimental Systems. Uptake Was Determined in Batch Experiments with 14C Ring-Labeled Atrazine and Hybrid Poplar Trees Grown in Two Soil Types. Mineralization Was Studied Utilizing Soil Microcosms with the Addition of Root Exudates. Results Indicate that Poplar Cuttings Were Able to Uptake the Majority of Applied Atrazine that Was Not Tightly Sorbed to the Organic Fraction of the Soil, with No Detectable Adverse Effects to the Trees. …

On Seismic Displacements Of Rigid Retaining Walls, Yingwei Wu, Shamsher Prakash

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Rigid retaining walls experience both sliding and rocking displacement during earthquakes. Richards and Elms' (1979) method incorporates only sliding displacements in design. A realistic method of computing both sliding and rocking displacements of the walls based on nonlinear soil properties both for the base soil and backfill was developed by Rafnsson and Prakash (1994). A design procedure based on this method was then developed by Prakash. et al (1995, b). Comparisons of the displacements of typical walls by both the methods have been made. Also, typical field data from recent earthquakes has been analyzed to compare the observed displacements with …

Behavior Of Low Ductility Steels In Cold-Formed Steel Connections, S. Seleim, Roger A. Laboube

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Accepted design approaches for the strength of a steel connection rely on adequate ductility of the connected parts. In cold-formed steel connection design, adequate ductility is defined by the Specification for the Design of Cold-Formed Steel Members. To assess the influence of low ductility steels, i.e. steels not meeting the specification ductility requirements, single lap bolted connections were studied. The experimental study reflected key connection strength parameters: edge distance, sheet thickness, sheet width, bolt pattern, Fu/Fy, and percentage elongation. Test results indicate that failure modes in low ductility steels are inconsistent with observed failure modes in adequate ductility steels. It …

Performance Of Laminated Glass Units Under Simulated Windborne Debris Impacts, Richard A. Behr, Paul A. Kremer

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Severe windstorm events such as Hurricane Andrew in 1992 have underscored the vulnerability of building envelopes to breaching under the combined effects of windborne debris impacts and wind pressures. Damage to building interiors and disruption of building functions are exacerbated greatly when building envelopes are breached. When the inner glass ply in a laminated glass window unit is unbroken, the integrity of that part of the building envelope is preserved - provided that the inner glass ply has sufficient resistance to subsequent positive and negative wind pressures. In an effort to develop glazing systems that are resistant to breaching due …

Multiobjective Optimization Of Structures With And Without Control, Franklin Y. Cheng, Dan Li

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

A multiobjective optimization algorithm is introduced, and the effect of different objective functions on structural design is investigated. The basic idea of this approach is to support the decisionmaker by directly selecting the best compromise solution from the Pareto optimal solutions. A payoff matrix is first constructed by optimizing each objective function subject to the given constraints; a substitute function is then formed. Under the original constraint conditions, maximizing the substitute function gives the best compromise solution. This research shows that multiobjective optimization should be carried out to obtain a rational structural design. Two structural optimal design examples - one …

Comparison Of Linear And Nonlinear Seismic Drift Histories For Midrise Steel Frames, K. Z. Truman, C. Pantelides, Richard A. Behr, Abdeldjelil Belarbi

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The linear and nonlinear seismic responses for two midrise office buildings of five- and 24-storeys were generated by two independent research groups using three commercial analysis packages, ABAQUS, SAP90 and DRAIN-2DX. The results indicate that a variability of up to 25% occurred between the independent research groups' seismic responses. Originally, these models and analyses were generated for the purpose of aiding in the development of load histories for the seismic testing of architectural glass at the University of Missouri-Rolla. The independent researchers were provided with the same structures, accelerograms and basic modelling assumptions and were directed to perform both linear …

Effects Of Accelerated Weathering On Architectural Laminated Glass In A Windstorm Environment, Richard A. Behr, Joseph E. Minor, Paul A. Kremer

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

An experimental study was conducted to assess the serviceability and ultimate limit state behavior of a fully glazed architectural laminated glass system under accelerated weathering conditions. Glazed specimens included heat-strengthened laminated glass with a low-emissivity, metallic solar coating on one glass surface next to the polyvinyl butyral interlayer. The laminated glass units were anchored to the aluminum curtain wall frame with a perimeter anchor bead of medium-modulus structural silicone sealant. Accelerated weathering was performed in a manner similar to the provisions of ASTM E773-88 and E774-92. All specimens (weathered and unweathered) were then subjected to a severe windstorm simulation test, …

Bending And Shear Behavior Of Web Elements With Openings, M. Y. Shan, Roger A. Laboube, Wei-Wen Yu

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Cold-formed steel C-sections are frequently used as wall studs and floor joists in both commercial and residential construction. To facilitate installation of ancillary systems such as electrical wiring and plumbing, the C-section is manufactured with a web opening. Although the opening offers construction advantages, it may degrade the structural integrity of the member. To quantify the degrading effect of a web opening, a study has been conducted at the University of Missouri-Rolla (UMR). The UMR study included the loading conditions of bending, shear, web crippling, and the combinations thereof. This paper summarizes the results of an experimental study which addressed …

Seismic Test Methods For Architectural Glazing Systems, Richard A. Behr, Abdeldjelil Belarbi

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

An ongoing effort is being made at the University of Missouri-Rolla to develop standard laboratory test methods and codified design procedures for architectural glass under seismic loadings. Recent laboratory work has yielded some promising results regarding the development of an appropriate seismic test method for architectural glass, as well as identifying ultimate limit states that quantify the seismic performance and damage thresholds of various glass types. Specifically, a straightforward "crescendo-like" in-plane dynamic racking test, performed at a constant frequency, has been employed successfully. Two ultimate limit states for architectural glass have been defined: (1) a lower ultimate limit state corresponding …

Degradation Of Trichloroethylene By Methanol-Grown Cultures Of Methylosinus Trichosporium Ob3b Pp358, Mark W. Fitch, G. E. Speitel, G. Georgiou

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

A Soluble Methane Monooxygenase-Constitutive Mutant Strain of Methylosinus Trichosporium OB3b, Strain PP358, Was Grown with Methanol as the Carbon Source, and the Kinetics of Trichloroethylene (TCE) Degradation Were Determined. PP358 Exhibited High TCE Degradation Rates under Both Oxygen- and Carbon-Limiting Conditions. the Optimal Pseudo First-Order Rate Constant for TCE Was Comparable to the Values Measured for Cells Grown with Methane. We Found that Growth under Oxygen-Limiting Conditions Results in Increased Accumulation of Polyhydroxybutyrate, Which in Turn Correlates with Higher Transformation Capacities for TCE. It Was Also Shown that Methanol Inhibits TCE Degradation Only at High Concentrations. Thus, Methanol-Grown Cultures of …

Computer Simulations Versus Real Experiments In A Portable Structural Mechanics Laboratory, Richard A. Behr

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Efforts are being made to develop practical and effective innovations for undergraduate engineering teaching laboratories. The 'ANEX' process, in which computer simulations are compared in nearly real time with physical measurements made on bench-scale model experiments, is now being used successfully in an introductory structural analysis course. ANEX is described, as well as current plans to develop software simulation modules and matched, bench-scale model experiments for new 'MECH-ANEX' laboratory applications in lower-division statics and mechanics of materials courses. The ANEX process could also be adapted to undergraduate laboratory applications in a wider range of engineering and science disciplines.

Bs News

Building Services Engineering

No abstract provided.

The "Door To Nowhere" Leads To "Manure Manor", Elise H. Stephens

The Historic Huntsville Quarterly

No abstract provided.

The Planter's Railway, Paul Harncourt

The Historic Huntsville Quarterly

No abstract provided.

The Historic Huntsville Quarterly Of Local Architecture And Preservation: Preservation For All Times And All Seasons, Vol. 21, No. 4, Winter 1995, Historic Huntsville Foundation

The Historic Huntsville Quarterly

No abstract provided.

From The Chair, Suzi Bolton

The Historic Huntsville Quarterly

No abstract provided.

A House For All Seasons: Number Six Cruse Alley, Sarah Dudley Hall Edwards

The Historic Huntsville Quarterly

No abstract provided.

From The Editor, Elise H. Stephens

The Historic Huntsville Quarterly

No abstract provided.

A House For All Time: The New Old House On White Street, Sim Liddon

The Historic Huntsville Quarterly

No abstract provided.

Juice December 11, 1995, Students Of Risd, Risd Archives

All Student Newspapers

Juice was a short-form student publication primarily intended to publicize upcoming events occurring on or around campus. The December 11, 1995 issue includes listings of the lectures, exhibitions, and the American Institute of Architecture performance about the life and work of Frank Lloyd Wright for the week of December 11-17.

Juice December 4, 1995, Students Of Risd, Risd Archives

All Student Newspapers

Juice was a short-form student publication primarily intended to publicize upcoming events occurring on or around campus. The December 4, 1995 issue includes listings of the movie and music events, art exhibitions, and lectures in the week of December 4-10.

Review Of The Phoenix And The Flame: Catalonia And The Counter Reformation, By Henry Kamen, Gary W. Mcdonogh

Growth and Structure of Cities Faculty Research and Scholarship

No abstract provided.

Review Of The Origins Of Industrial Capitalism In India: Business Strategies And The Working Classes In Bombay, 1900-1940 By Rajnarayan Chandavarkar, Hemalata C. Dandekar

City and Regional Planning

No abstract provided.

Landmark Report (Vol. 15, No. 3), Kentucky Library Research Collections

Landmark Report

Newsletter published by the Landmark Association; this local group advocates the preservation, protection and maintenance of architectural, cultural and archaeological resources in Bowling Green and Warren County, Kentucky.

Legislation And Education As Strategies To Reduce Behavioral Health Risk Factors In The State Of Nebraska, Kimberly M. Poindexter

Community and Regional Planning Program: Theses

In the interest of improving health care planning and practice, this paper exami~es legislation and educational strategies designed to reduce behavioral health risk factors in the state of Nebraska and the United States. The growing problem of modifying health behavior in the nation and Nebraska is reviewed, including trends in seat belt use, drinking and driving, smoking, hypertension, obesity, and sedentary lifestyle. Nebraska's rate of death associated with these risk factors is higher than the national average. Several of the strategies which Nebraska and the United States have implemented are reviewed.

Legislation to reduce the prevalence of seat belt nonuse, …

1995.2 - Concert Hall Fort Worth, Martin Price, Per Johan Dahl

School of Architecture Student Projects - Archive

Design work from the 1995 fall semester, Studio Martin Price, School of Architecture, The University of Texas at Arlington. Concert Hall. Per Johan Dahl. The large scale of the project is reduced by spiraling it into the ground and weaving it into the scale of the surrounding Fort Worth urban fabric. This provides for a more comfortable descent into the entry. Color is used to articulate and enhance a sense of movement through a gradation of warm color at the entrance to cool color inside the hall. The roof slopes and folds upward in two sections, which provide for daylight …

Design Research: The Newsletter Of The Design Research Society No.55, Necdet Teymur

Design Research Newsletters (1966-1999)

No abstract provided.

Juice November 27, 1995, Students Of Risd, Risd Archives

All Student Newspapers

Juice was a short-form student publication primarily intended to publicize upcoming events occurring on or around campus. The November 27, 1995 issue includes the listings of the lectures, exhibitions, movie screenings, and other campus events for the week of November 27-December 3. The issue also highlights performance for World AIDS Day, and video screenings on AIDS.

Ua1b3/6 Meeting Minutes, Wku Parking & Traffic Committee

WKU Administration Documents

WKU Parking & Traffic Committee meeting minutes and attachments.

Juice November 13, 1995, Students Of Risd, Risd Archives

All Student Newspapers

Juice was a short-form student publication primarily intended to publicize upcoming events occurring on or around campus. The November 13, 1995 issue includes listings of the movie screenings, exhibitions, lecture series, contemporary video series, and information about the freshman department selection in the week of November 13-19. It also includes information about the NYC Bus Trip for the Thanksgiving weekend and The Artist Masquerade Ball '95.