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Building Services Engineering

No abstract provided.

Manure Testing: What To Request?, Charles A. Shapiro, Charles S. Wortmann

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Manure testing is necessary to make optimum use of manure while protecting water resources. This publication is a guide to providing information on a Manure Sample Sub­mission Form for reliable interpretation of results.

The tests most frequently needed to optimize nutrient management are total and ammonium nitrogen (NH₄-N), phosphorus (P₂O₅), potassium (K₂O), pH, soluble salts, sodium, and dry matter content.

Nitrogen. Manure contains both organic and inorganic forms of nitrogen. Ammonium-N is the primary inorganic form in manure and is readily available to crops. Nitrate-N concentration is usually too small to …

Evaluation Of Irrigation Strategies With The Dssat Cropping System Model, Derek M. Heeren, Hal D. Warner, Todd P. Trooien

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Water is becoming an increasingly valuable commodity with shortages and water rationing more commonplace. Since irrigation is the largest consumptive use of water in South Dakota, accounting for over 70% of the water withdrawals, irrigation water management is critical to make the best use of the water available. This project uses the CERES-Maize cropping system model (available in DSSAT v4) to study the impact of various irrigation management strategies on corn production. SDSU management software developed by Oswald (2006) is used to simulate a center pivot for specific locations and years. Weather data from several sites in the Great Plains …

Steel Sheet Sheathing Options For Cfs Framed Shear Wall Assemblies Providing Shear Resistance, Cheng Yu, Hitesh Vora, Tony Dainard, Jimmy Tucker, Pradeep Veetvkuri

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

The North American Standard for Cold-Formed Steel Framing - Lateral Design, AISI S213-07, provides design provisions for cold-formed steel framed shear walls with steel sheet sheathing. However, options are limited to 18-mil and 27-mil steel sheet sheathing. Presented in this report are the findings from an extensive monotonic and cyclic testing program conducted at the University of North Texas of 30-mil and 33-mil steel sheet sheathed shear walls with 2:1 and 4:1 aspect ratios and 27-mil sheet steel shear walls with 2:1 aspect ratio and 6-in., 4-in., 3-in., and 2-in. fastener spacing at panel edges. It is anticipated that the …

North American Standard For Cold-Formed Steel Framing -- Floor And Roof System Design, 2007 Edition (Reaffirmed 2012), American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Ole Miss Engineer 2007

Ole Miss Engineer

No abstract provided.

Long-Term Trends From Ecosystem Research At The Hubbard Brook Experimental Forest, John L. Campbell, Charles T. Driscoll, Christopher Eagar, Gene E. Likens, Thomas G. Siccama, Chris E. Johnson, Timothy J. Fahey, Steven P. Hamburg, Richard T. Holmes, Amey S. Bailey, Donald C. Buso

Civil and Environmental Engineering - All Scholarship

The Hubbard Brook Experimental Forest was established by the U.S. Forest Service in 1955 as a major center for hydrologic research in the Northeast. The Hubbard Brook Ecosystem Study originated 8 years later with the idea of using the small watershed approach to study element flux and cycling and the response of forest ecosystems to disturbance. Since that time, the research program at Hubbard Brook has expanded to include various physical, chemical and biological measurements collected by researchers from a number of cooperating institutions. Collaborative, long-term data are the keystone of the Hubbard Brook Ecosystem Study and have provided invaluable …

Structural And Economical Impacts Of Heavy Truck Loads On Bridges, Xiang Zhou

Doctoral Dissertations

The study included in this dissertation assesses the strength, serviceability, and economic impact of overweight trucks on Louisiana bridges. Truck load configurations FHWA 3S2 and FHWA 3S3 were applied to bridge models that were originally designed for HS20-44 truck configuration to determine the effects of heavy truck loads on bridges. Behaviors of bridge components including bridge girder, deck, and diaphragm were evaluated separately.

AASHTO linear approach and finite element analysis were employed to evaluate bridge girder behaviors under the heavy truck load. Bridge models with different geometric configurations were considered. Both short term and long term effects on simple span …

Cold-Formed Steel Framing Design Guide, Second Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

This Design Guide has been developed under the direction of the American Iron and Steel Institute Committee on Specifications for the Design of Cold-Formed Steel Structural Members. The development of the Guide was sponsored by the American Iron and Steel Institute and the Steel Stud Manufacturers Association. The AISI Committee on Specifications wishes to acknowledge and express gratitude to Mr. Thomas Trestain of T. W. J. Trestain Structural Engineering who was the author of this Guide.

With anticipated improvements in understanding of the behavior of cold-formed steel and the continuing development of new technology, this material might become dated. It …

North American Standard For Cold-Formed Steel Framing -- Wall Stud Design, 2007 Edition (Reaffirmed 2012), American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Steel Sheet Sheathing Options For Cfs Framed Shear Wall Aseemblies Providing Shear Resistance, Cheng Yu, Hitesh Vora, Tony Dainard, Pradeep Veetvkuri

CCFSS Library (1939 - present)

In cold-formed steel construction, stud walls covered with steel sheet sheathing is an available option to resist lateral loads such as those caused by wind and earthquakes. The current American Iron and Steel Institute (AISI) Standard for Cold-Formed Steel Framing - Lateral Design 2004 Edition provides nominal shear strength for a limited range of steel sheet sheathed shear wall configurations. This report presents a research project developed to add values for 0.030-in. and 0.033-in. steel sheet sheathed shear walls with 2:1 and 4:1 aspect ratios and 0.027-in. sheet steel shear walls with 2:1 aspect ratio and 6-in., 4-in., 3-in., and …

A Comparison Of Five Models For Estimating Clear-Sky Solar Radiation, Robert Leslie Annear, Scott A. Wells

Civil and Environmental Engineering Faculty Publications and Presentations

Many agencies in the USA are developing management approaches to address water quality concerns and threatened and endangered species habitat requirements in water bodies. Many of these water bodies are water quality limited for temperature. Factors influencing stream temperature include: streamside vegetation, topographic shading, inflows and outflows, stream width, stream depth, light extinction and solar radiation. One of the key driving factors in estimating a water body heat budget is calculating the amount of solar radiation incident on the water surface. Even though it is preferable to measure clear-sky solar radiation, many temperature models rely on theoretical estimates of clear-sky …

Training Module In Regional And Municipal Governance Of Public Private Partnerships, Louis Gunnigan

Conference papers

This module concentrates on the issues important to those who will be setting up PPPs and who are involved in government at a regional or municipal level.

The module is centred on five tasks, namely:

• How to identify PPP opportunities and to find the best private sector partners for a PPP;
• How to organize a PPP programme within a government by enhancing cooperation amongst the relevant departments and ministries, local, regional and national authorities;
• How to be an effective manager and leader in a dynamic PPP unit;
• How to engage public support for PPPs;
• How to use international instruments to …

A Comparison Of State Policies For Complying With The Endangered Species Act, Lenahan O'Connell, Ted Grossardt

Kentucky Transportation Center Research Report

In recent years the number of biological assessments (BAs) for the presence of endangered species conducted by KYTC has risen significantly. This was primarily due to new/additional restrictions imposed by the United States Fish and Wildlife Service (USFWS) in 2005. The most consequential restriction was the listing of the Indiana bat as potentially present in all Kentucky counties. Previously BAs for the Indiana bat were only conducted when a project occurred in a county in which the Indiana bat had been observed (a known occurrence). This study reviewed the policies of the states adjacent to Kentucky, as well as those …

Implementation Of The Aashto Lrfd Code In Geotechnical Design, Andrzej S. Nowak, Marek Kozikowski,, Tomasz A Lutomirski, Piotr Paczkowski, Jordan Larsen

Nebraska Department of Transportation: Research Reports

No abstract provided.

2007 Summary Of Major Moves Money Distribution, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

This report contains a summary of local units' use of the Major Moves funding to enhance their transportation systems provided for by the Indiana Legislature passing of House Bill 1008 on March 14, 2006.

The information contained herein is from either written or verbal responses to a survey that was sent to all Indiana counties and to the Indiana cities and towns over 20,000 in population. A copy of this survey can be found in the Appendix. In Appendix I, you will find a copy of the survey that was sent. Appendix II contains a table containing a breakdown of …

Bs News

Building Services Engineering

No abstract provided.

Rapid Detection Of Analytes With Improved Selectivity Using Coated Microcantilever Chemical Sensors And Estimation Theory, Michael J. Wenzel, Fabien Josse Phd, Edwin E. Yaz, Stephen M. Heinrich, P. G. Datskos

Civil and Environmental Engineering Faculty Research and Publications

Rapid detection of analytes with improved selectivity is achieved though the use of estimation theory to analyze the response of polymer-coated microcantilever chemical sensors. In general, chemical sensors exhibit partial selectivity and can have relatively long response times. Using estimation theory, it is possible to make short-term response predictions from past data. This makes it possible to use the transient information (response time), often unique to an analyte/coating pair, to achieve an improvement in analyte species recognition while simultaneously allowing for a reduction in the time required for identification and quantification. An extended Kalman filter is used as a recursive …

Bulk Behavior Of Nanostructured Aluminum: Nanocrystalline Powders Compaction, Canning And Consolidation Via Intense Plastic Straining, Mohamed Mahmoud Hamed Shamma

Archived Theses and Dissertations

No abstract provided.

Integrated Modeling Of Nitrate Contamination Of Groundwater In Agriculture-Dominated Watersheds, M. Almasri, Jagath J. Kaluarachchi

Civil and Environmental Engineering Faculty Publications

This paper presents and implements a framework for modeling the impact of land use practices and protection alternatives on nitrate pollution of groundwater in agricultural watersheds. The framework utilizes the national land cover database (NLCD) of the United State Geological Survey (USGS) grid and a geographic information system (GIS) to account for the spatial distribution of on-ground nitrogen sources and corresponding loadings. The framework employs a soil nitrogen dynamic model to estimate nitrate leaching to groundwater. These estimates were used in developing a groundwater nitrate fate and transport model. The framework considers both point and non-point sources of nitrogen across …

Round-Robin Testing Of A Dewpoint Potentiameter Versus Filter Paper To Determine Total Suction, Thomas M. Petry, Cheng Ping Jiang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Expansive clays exhibit high potential for volume change when changes in soil moisture occur. It has been estimated that the annual cost of damage to facilities built on expansive clay in the United States exceeds $9 billion. the use of soil suction measurements to predict potential clay volume changes has shown significant promise, yet the currently utilized method to determine soil suction, the filter paper method, has serious drawbacks. First, the test takes approximately 8 days to complete, making it less than practical for broad use by practicing engineers. Second, and more troublesome, the filter paper test is difficult to …

Evaluation Of Current Nonlinear Static Procedures For Concrete Buildings Using Recorded Strong-Motion Data, Rakesh K. Goel, Charles Chadwell

Civil and Environmental Engineering

This paper evaluates current Nonlinear Static Procedures (NSPs) specified in the FEMA- 356, ASCE-41, ATC-40, and FEMA-440 documents using strong-motion data from reinforcedconcrete buildings. For this purpose, peak roof (or target node) displacements estimated from the NSPs are compared with the value derived from recorded motions. It is shown that: (1) the NSPs either overestimate or underestimate the peak roof displacement for several of the buildings considered in this investigation; (2) the ASCE-41 Coefficient Method (CM), which is based on recent improvements to the FEMA-356 CM suggested in FEMA-440 document, does not necessarily provide better estimate of roof displacement; and …

Water Savings And Rainwater Harvesting – Pilot Project In Ireland, Sean O'Hogain, Anna Reid, Liam Mccarton, Jenny Pender, Niamh Mcntyre

Conference papers

A pilot project to harvest rainwater was set up in Ireland in 2005 to examine the potential of using rainwater harvesting systems to replace treated mains water, for non-potable uses. The Project has two strands to it. The agricultural application assessed the feasibility of incorporating rainwater supply to supplement/replace mains or other water supplies for farms. The second strand involves rural water supply to domestic dwellings. Here the project installed rainwater harvesting and water conservation devices as part of a pilot project to assess the reduction in domestic demand. This paper will examine the water use recorded on both sites. …

Foundations For Seismic Loads, Vijay K. Puri, Shamsher Prakash

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Design of foundations in earthquake prone areas needs special considerations. Shallow foundations may experience a reduction in bearing capacity and increase in settlement and tilt due to seismic loading. the reduction in bearing capacity depends on the nature and type of soil and ground acceleration parameters. in the case of piles, the soil-pile behavior under earthquake loading is generally non-linear. the nonlinearity must be accounted for by defining soil-pile stiffness in terms of strain dependent soil modulus. Several behavioral and design aspects of shallow foundations and pile groups subjected to earthquakes have been critically reviewed. Copyright ASCE 2007.

2007 Engr333/Biol354 Project Assignment, Matthew K. Heun

ENGR 333

The Fall 2007 semester ENGR333 project involved a collaboration with students in BIOL354, taught by my colleague Dave Warners. We asked our students “What would it take to make Calvin College carbon neutral?”

This project resulted in the first-ever carbon dioxide emissions and sequestration assessment of Calvin College, attached below.

The student presenters animated the pie charts, and an audible gasp filled the hall when the imbalance between carbon emissions and carbon sequestration became clear.

The students also studied potential routes to carbon neutrality, one of which was a green revolving fund.

This class project resulted in a co-authored publication …

A Web-Based Flood Informat Ion System, Jordan Black, Subhankar Karmakar, Slobodan P. Simonovic

Water Resources Research Report

The web has become a major source of information for many water resources management tasks. With the growing popularity of the Internet, it provides a convenient, accessible way to provide the public with flood-related information. The present study focuses on web dissemination of information on flood risk and vulnerability to different types of users; general public, decision makers, and professionals. By gearing the display and representation of risk to each user, the information can be better understood and facilitate the flood management process. A user-friendly web-based flood information system is developed to provide flood risk, different components of flood vulnerability, …

Physical, Economical, Infrastructural And Social Flood Risk -- Vulnerability Analyses In Gis, Angela Peck, Subhankar Karmakar, Slobodan P. Simonovic

Water Resources Research Report

An exhaustive knowledge of flood risk, vulnerability and exposure in different spatial locations is essential for developing an effective flood mitigation strategy for a watershed. In the present study, a flood risk-vulnerability analysis is performed. All four components of flood vulnerability: (a) physical; (b) economic; (c) infrastructure and (d) social, are evaluated individually using a Geographic Information System (GIS) environment. The proposed methodology estimates the impact on infrastructure vulnerability due to inundation of critical facilities, emergency service stations, and road bridges. The components of vulnerability are combined to determine the overall vulnerability. The patterns of land use and soil type …

Assessment Of The Bill Emerson Memorial Cable-Stayed Bridge Based On Seismic Instrumentation Data, Genda Chen, Dongming Yan, Wenjian Wang, Man Zheng, Louis Ge, Frank Liu

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In this study, both ambient and earthquake data measured from the Bill Emerson Memorial Cable-stayed Bridge are reported and analyzed. Based on the seismic instrumentation data, the vibration characteristics of the bridge are investigated and used to validate a three-dimensional Finite Element (3-D FE) model of the bridge structure. The 3-D model is rigorous and comprehensive, representing realistic dynamic behaviors of the bridge. It takes into account the geometric nonlinear properties caused by cable sagging and soil-foundation-structure interaction in the Illinois approach of the bridge. The FE model is successfully verified and validated by using the natural frequencies and mode …

Analysis Of Procurement Processes And Development Of Recommendations For Intelligent Transportation Systems (Its) Procurements, Joseph D. Crabtree, Christopher W. Frost, Jennifer Walton, John Crossfield

Kentucky Transportation Center Research Report

Traditional state procurement processes are not well-suited to the procurement of Intelligent Transportation Systems (ITS). The objective of this study was to analyze Kentucky’s existing procurement processes, identify strengths and weaknesses of each, and develop recommendations for a revised process (or processes) that would meet the unique requirements of ITS procurements. Four existing processes were identified, studied, documented, and assessed. The study also looked at design-build processes, both in Kentucky and in other states. Recommendations were developed for statutory changes to improve Kentucky’s ability to procure ITS technologies and systems.

Analysis Of Traffic Crash Data In Kentucky (2002 - 2006), Eric R. Green, Kenneth R. Agent, Jerry G. Pigman

Kentucky Transportation Center Research Report

This report documents an analysis of traffic crash data in Kentucky for the years of 2002 through 2006. A primary objective of this study was to determine average crash statistics for Kentucky highways. Average and critical numbers and rates of crashes were calculated for various types of highways in rural and urban areas. These data can be used in Kentucky’s procedure to identify locations that have abnormal rates or numbers of crashes. The other primary objective of this study was to provide data that can be used in the preparation of the problem identification portion of Kentucky’s Annual Highway Safety …