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Full-Text Articles in Social and Behavioral Sciences

Road Safety Audit For Ia 150/Us 52 From I-380 To The Minnesota Border, Thomas J. Mcdonald Dec 2009

Road Safety Audit For Ia 150/Us 52 From I-380 To The Minnesota Border, Thomas J. Mcdonald

InTrans Project Reports

On June 9, 2009, the Northeast Iowa Highway 150/52 Coalition met with the Iowa Department of Transportation (Iowa DOT) in Cedar Falls, Iowa to discuss concerns regarding roadway conditions and safety which has become a concern because of the potential economic development in the area. In response to the issues raised by the coalition, the Iowa DOT requested that a road safety audit be conducted on the corridor to identify where low-cost improvements could be beneficially applied to address safety concerns


Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna Nov 2009

Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna

Agriculture and Environment Extension Publications

Includes advantages and disadvantages of custom hiring and information on estimating costs; includes worksheets.


Impacts Of Agricultural Expansion On Surface Runoff: A Case Study Of A River Basin In The Brazilian Legal Amazon, E. E. Maeda, A. R. Formaggio, Y. E. Shimabukuro, Amy L. Kaleita Sep 2009

Impacts Of Agricultural Expansion On Surface Runoff: A Case Study Of A River Basin In The Brazilian Legal Amazon, E. E. Maeda, A. R. Formaggio, Y. E. Shimabukuro, Amy L. Kaleita

Agricultural and Biosystems Engineering Publications

This work presents an analysis of the Land Use and Land Cover (LULC) changes of a region in the Brazilian Legal Amazon, and an evaluation of their impacts on the surface runoff regime. This case study took place at the Suiá-Miçu River basin, located in the northeast region of Mato Grosso State. LULC maps were produced for the years 1973, 1984 and 2005 using remote sensing data. After analyzing the agricultural expansion in the study area, the Automated Geospatial Watershed Assessment Tool (AGWA) was applied in performing the surface runoff modeling for each of the analyzed years using the SCS ...


Recognizing, Characterizing, And "Unsettling" Unintended Bias In The Faculty Search Process In Engineering, Kristen P. Constant, Sharon R. Bird Jun 2009

Recognizing, Characterizing, And "Unsettling" Unintended Bias In The Faculty Search Process In Engineering, Kristen P. Constant, Sharon R. Bird

Materials Science and Engineering Conference Papers, Posters and Presentations

Faculty searches are one of the most critical activities undertaken with regards to shaping the future of a department, college or university. Despite the importance of this activity, most search committees are comprised of faculty who have very little time to commit to this task, and little if any training on ‘best practices’ or policies for conducting searches. National recognition of the need in faculty search processes for decision-makers to understand the prevalence of unintended biases and how to combat them has grown precipitously in recent years. Cognitive scientists have shown that many of the selection and evaluation processes we ...


Comparison Of Construction Costs For Vegetated Treatment Systems In The Midwest, Bradley J. Bond, Robert T. Burns, Todd P. Trooien, Stephen H. Pohl, Christopher G. Henry, Lara B. Moody, Matthew J. Helmers, John Lawrence Jun 2009

Comparison Of Construction Costs For Vegetated Treatment Systems In The Midwest, Bradley J. Bond, Robert T. Burns, Todd P. Trooien, Stephen H. Pohl, Christopher G. Henry, Lara B. Moody, Matthew J. Helmers, John Lawrence

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

Vegetated treatment systems (VTSs) provide an alternative to containment basin systems for beef feedlot runoff control. Beef producers in the Midwestern United States have shown an increasing interest in using VTSs as a perceived lower cost option to containment basin systems. This paper reports the actual construction costs associated with 21 VTSs (eight on permitted Concentrated Animal Feeding Operations (CAFOs) and 13 on non permitted Animal Feeding Operations (AFOs)) located within Iowa, Minnesota, South Dakota, and Nebraska. The VTS construction costs are reported on a per head basis in 2009 adjusted dollars for each system. Cost comparisons are presented between ...


Sensor Augmented Virtual Reality Based Teleoperation Using Mixed Autonomy, Muthukkumar Kadavasal Sivaraman, James H. Oliver Mar 2009

Sensor Augmented Virtual Reality Based Teleoperation Using Mixed Autonomy, Muthukkumar Kadavasal Sivaraman, James H. Oliver

Mechanical Engineering Publications

A multimodal teleoperation interface is introduced, featuring an integrated virtual reality (VR) based simulation augmented by sensors and image processing capabilities onboard the remotely operated vehicle. The proposed virtual reality interface fuses an existing VR model with live video feed and prediction states, thereby creating a multimodal control interface. VR addresses the typical limitations of video based teleoperation caused by signal lag and limited field of view, allowing the operator to navigate in a continuous fashion. The vehicle incorporates an onboard computer and a stereo vision system to facilitate obstacle detection. A vehicle adaptation system with a priori risk maps ...


Ciras News (Vol. 45, No. 1), Iowa State University Center For Industrial Research And Service Jan 2009

Ciras News (Vol. 45, No. 1), Iowa State University Center For Industrial Research And Service

CIRAS News

Contents: Appointment partners CIRAS, College of Engineering for industry outreach; Q&A with Jonathan Wickert, College of Engineering dean; CIRAS helps SPEED student 'break' into engineering; Iowa State's Center for Nondestructive Evaluation puts high-tech tools to work for Iowa companies; Record attendance at annual procurement conference; Why a business continuity plan may be the best investment your company ever makes


Ciras News (Vol. 44, No. 2), Iowa State University Center For Industrial Research And Service Jan 2009

Ciras News (Vol. 44, No. 2), Iowa State University Center For Industrial Research And Service

CIRAS News

Contents: How CIRAS is Respoiding to the Recession; PTAP opens new markets for former Iowa State basketball coach Wayne Morgan; ISO certification helps Softronics win a record-breaking contract; IPRT assistance keeps Metalcraft on the leading edge of RFID; Iowa State economist Dave Swenson sees some light at the end of Iowa's recessionary tunnel; How companies can smooth the way for our National Guard troops


Capacity Withholding In Restructured Wholesale Power Markets: An Agent-Based Test Bed Study, Hongyan Li, Leigh Tesfatsion Jan 2009

Capacity Withholding In Restructured Wholesale Power Markets: An Agent-Based Test Bed Study, Hongyan Li, Leigh Tesfatsion

Economics Presentations, Posters and Proceedings

This study uses a dynamic 5-bus test case implemented via the AMES Wholesale Power Market Test Bed to investigate strategic capacity withholding by generation companies (GenCos) in restructured wholesale power markets under systematically varied demand conditions. The strategic behaviors of the GenCos are simulated by means of a stochastic reinforcement learning algorithm motivated by human-subject laboratory experiments. The learning GenCos attempt to improve their earnings over time by strategic selection of their reported supply offers. This strategic selection can involve both physical capacity withholding (reporting of lower-than-true maximum operating capacity) and economic capacity withholding (reporting of higher-than-true marginal costs). We ...


Scenario Generation For Price Forecasting In Restructured Wholesale Power Markets, Qun Zhou, Leigh Tesfatsion, Chen-Ching Liu Jan 2009

Scenario Generation For Price Forecasting In Restructured Wholesale Power Markets, Qun Zhou, Leigh Tesfatsion, Chen-Ching Liu

Economics Presentations, Posters and Proceedings

Abstract: In current restructured wholesale power markets, the short length of time series for prices makes it difficult to use empirical price data to test existing price forecasting tools and to develop new price forecasting tools. This study therefore proposes a two-stage approach for generating simulated price scenarios based on the available price data. The first stage consists of an Autoregressive Moving Average (ARMA) model for determining scenarios of cleared demands and scheduled generator outages (D&O), and a moment-matching method for reducing the number of D&O scenarios to a practical scale. In the second stage, polynomials are fitted ...


Locational Marginal Pricing Basics For Restructured Wholesale Power Markets, Haifeng Liu, Leigh Tesfatsion, A.A. Chowdhury Jan 2009

Locational Marginal Pricing Basics For Restructured Wholesale Power Markets, Haifeng Liu, Leigh Tesfatsion, A.A. Chowdhury

Economics Presentations, Posters and Proceedings

Abstract: Although Locational Marginal Pricing (LMP) plays an important role in many restructured wholesale power markets, the detailed derivation of LMPs as actually used in industry practice is not readily available. This lack of transparency greatly hinders the efforts of researchers to evaluate the performance of these markets. In this paper, different AC and DC optimal power flow (OPF) models are presented to help understand the derivation of LMPs. As a byproduct of this analysis, the paper provides a rigorous explanation of the basic LMP and LMP-decomposition formulas (neglecting real power losses) presented without derivation in the business practice manuals ...


Development Of Open Source Software For Power Market Research: The Ames Test Bed, Hongyan Li, Leigh Tesfatsion Jan 2009

Development Of Open Source Software For Power Market Research: The Ames Test Bed, Hongyan Li, Leigh Tesfatsion

Economics Publications

Open source software (OSS) expresses the idea that developers should be able to license the publication of their software in a manner permitting anyone to freely use, modify and distribute the software. Today OSS is widely used in the software industry: for example, for language development tools (eg, NetBeans for Java), office document processors (eg, OpenOffice) and operating systems (eg, Linux, OpenSolaris).Yet OSS has been slow to penetrate the power industry; heavy reliance is still placed on closed-source commercial software packages. Open source software tends to be used for specialized purposes (eg, circuit design) rather than for the general-purpose ...


Derivation Of Locational Marginal Prices For Restructured Wholesale Power Markets, Haifeng Liu, Leigh Tesfatsion, Ali A. Chowdhury Jan 2009

Derivation Of Locational Marginal Prices For Restructured Wholesale Power Markets, Haifeng Liu, Leigh Tesfatsion, Ali A. Chowdhury

Economics Publications

Although locational marginal pricing (LMP) plays an important role in many restructured wholesale power markets, the detailed derivation of LMP as it is actually used in industrial practice is not readily available. This lack of transparency greatly hinders the efforts of researchers to evaluate the performance of these markets. In this paper, different alternating current and direct current optimal power flow models are presented to help us understand the derivation of LMP. As a byproduct of this analysis, we are able to provide a rigorous explanation of the basic LMP and LMP-decomposition formulas (neglecting real power losses) that are presented ...


Construction Resource Use Of Two Different Types And Scales Of Iowa Swine Production Facilities, Peter J. Lammers, Mark S. Honeyman, Jay D. Harmon, James B. Kliebenstein, Matthew J. Helmers Jan 2009

Construction Resource Use Of Two Different Types And Scales Of Iowa Swine Production Facilities, Peter J. Lammers, Mark S. Honeyman, Jay D. Harmon, James B. Kliebenstein, Matthew J. Helmers

Agricultural and Biosystems Engineering Publications

As global populations and affluence rise, there is increasing demand for energy, animal protein, and construction materials. In many cases, available resource pools are insufficient to meet growing market demands, resulting in increased prices and competition for limited resources. This study evaluates key construction resources needed to build different types and scales of Iowa swine production facilities. Two types of facilities — conventional confinement and hoop barn-based — within farrow-to-finish pig production systems scaled to produce either 5,200 or 15,600 market pigs annually are examined. Conventional confinement facilities are typical of pork industry practice in the United States and are ...