Engineering Commons^™

Evaluation And Modeling Of The Effect Of Tool Edge Radius On Machined Surface Roughness In Turning Uns A92024-T351 Aluminum Alloy, Ning Fang, P. Srinivasa Pai

Engineering Education Faculty Publications

Tool edge radius plays a significant role in affecting the surface integrity of machined products. The vast majority of existing research, however, takes no account of the effect of tool edge radius in the evaluation and modeling of machined surface roughness, an essential indicator of surface integrity. The present study fills this important research gap and has performed a total of 45 turning experiments on Unified Numbering System (UNS) A92024-T351 aluminum alloy with carefully selected cutting tools with three levels of tool edge radii. This article describes the experimental setup and measurements of tool edge radius and machined surface roughness. …

Evaluating And Redesigning The Self-Monitoring Tool, Harry Budi Santoso, Isnaeni Nurrohmah, Fadhilah Suci, Wade H. Goodridge

Engineering Education Faculty Publications

In order to facilitate self-monitoring interventions designed by the Faculty of Computer Science Universitas Indonesia a web-based self-monitoring tool was created. This paper aims to evaluate the tool regarding its usability and user-experiences prior to its wide adoption. The System Usability Scale (SUS) and the User-Experience Questionnaire (UEQ) were used to evaluate the self-monitoring tool. The tool was implemented in a Human-Computer Interaction course during odd semesters, and the evaluations were taken by the participants of the course. The evaluation results were analysed to help determine whether the tool needs to be enhanced or improved. Based on the results, a …

Cationic Starch Synthesis, Development, And Evaluation For Harvesting Microalgae For Wastewater Treatment, Renil John Anthony

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Microalgae are the preferred crop for the production of biodiesel. Microalgae are microplants that have the ability to harness sunlight more efficiently than other plants and store 20-80% lipids per g of dry algae in their cells. Microalgae have the extraordinary ability to grow in brackish water or wastewater. Microalgae can be grown in municipal wastewater to uptake phosphorus and nitrogen and remediate the wastewater of these nutrients. Microalgae thus cultivated accomplishes a dual role of wastewater treatment and provides a sustainable feedstock for biofuels and other bioproducts.

This study focused on efficiently harvesting microalgae from water using modified starch. …

Final Report: Accomplishments And Findings, Ncete Faculty

Reports to NSF

The National Center for Engineering and Technology Education (NCETE) was funded on August 15, 2004 under the auspices of the Centers for Learning and Teaching (CLT) program in the Division of Elementary, Secondary and Informal Education. The Program Solicitation (NSF 04-501) provided the following synopsis of the program: The Centers for Learning and Teaching program focuses on the advanced preparation of science, technology, engineering, and mathematics (STEM)educators as well as the establishment of meaningful partnerships with education stakeholders, especially PhD-granting institutions, school systems, and informal education performances. Its goal is to renew and diversify the care of leaders in STEM …

Year Eight Annual Report: Activities, Findings And Evaluators' Reports, Ncete Faculty, Jim Dorward

Reports to NSF

The National Center for Engineering and Technology Education (NCETE) is a collaborative network of scholars with backgrounds in technology education, engineering, and related fields. Our mission is to build capacity in technology education and to improve the understanding of the learning and teaching of high school students and teachers as they apply engineering design processes to technological problems. NCETE was granted a no-cost extension for an eighth year of work. Significant activities were focused in three areas: building research capacity within the engineering and technology education field; building on current research programs; and communicating and disseminating NCETE works and findings.

Year Seven Annual Report: Activities, Findings And Evaluators' Reports, Ncete Faculty

Reports to NSF

The National Center for Engineering and Technology Education (NCETE) is a collaborative network of scholars with backgrounds in technology education, engineering, and related fields. Our mission is to build capacity in technology education and to improve the understanding of the learning and teaching of high school students and teachers as they apply engineering design processes to technological problems. This year’s accomplishments include: completion of doctoral dissertations and post-doctoral research; continuation of research program; exploration of a strategic alliance of engineering and technology education groups in major doctoral-degree-granting universities; development of a caucus on high school engineering design challenges; and ongoing …

Year Six Annual Report: Activities, Findings And Evaluators' Reports, Ncete Faculty

Reports to NSF

The National Center for Engineering and Technology Education (NCETE) is a collaborative network of scholars with backgrounds in technology education, engineering, and related fields. Our mission is to build capacity in technology education and to improve the understanding of the learning and teaching of high school students and teachers as they apply engineering design processes to technological problems.

Year Five Annual Report: Activities, Findings And Evaluators' Reports, Ncete Faculty

Reports to NSF

The National Center for Engineering and Technology Education (NCETE) received funding from the National Science Foundation on September 15, 2004. Originally NCETE proposed the following goals for the Center: • To build capacity in graduate education and develop a new cadre of leaders who are engaged in research, teacher preparation, and professional development with the knowledge and skill to integrate engineering into technology education • To conduct research in how students learn engineering and technological concepts; how students learn design and problem solving, assessment and evaluation strategies; and how best to prepare technology teachers • To refocus technology teacher education …

Year Four Annual Report: Activities, Findings And Evaluators' Reports, Ncete Faculty

Reports to NSF

The National Center for Engineering and Technology Education is a collaborative network of scholars with backgrounds in technology education, engineering, and related fields. Our mission is to build capacity in technology education and to improve the understanding of the learning and teaching of high school students and teachers as they apply engineering design processes to technological problems.

Year Three Annual Report: Activities, Findings And Evaluators' Reports, Ncete Faculty

Reports to NSF

The Center continues to strengthen the research climate across the institutional settings. A number of activities have been directed at this effort: internal funding of small student and faculty research projects; development of an internal funding process for doctoral student research; and presentations by researchers at Center meetings and professional conferences. The internal research program has been successful in providing relatively non-threatening experiences with proposal preparation, review, negotiation, and the conduct of small research projects. Six proposals were funded for exploratory research projects in 2005-06 and five projects were funded in 2006-07. As these projects are completed, findings are shared …

Year Two Annual Report: Activities, Findings And Evaluators' Reports, Naida Tushnet, Jodie L.S. Hoffman, Jaclyn Ziobrowski, Khadijah Salaam, Isabel Ochoa

Reports to NSF

A major challenge in the work of the National Center for Engineering and Technology Education has been the need to strengthen the research climate across the institutional settings. A number of activities have been directed at that effort: internal funding of small student and faculty research projects; presentations by researchers at Center meetings; providing a research focus for the required core courses in cognitive science, design, problem solving, and creativity; and the evolution of the research framework for the Center. The internal research program has been successful in providing relatively non-threatening experiences with proposal preparation, review, negotiation, and the conduct …

Year One Annual Report: Activities, Findings And Evaluators' Reports, Naida Tushnet, Jodie L.S. Hoffman, Jaclyn Ziobrowski

Reports to NSF

The ultimate goal of NCETE is to infuse engineering design, problem solving and analytical skills into 9-12 grades through technology education in order to increase the quality, quantity, and diversity of engineering and technology educators, and to significantly strengthen the pathways to engineering and technology professions for students. The Center is doing this by teaming engineering faculty and technology education faculty in a systematic approach that involves: 1. Building a community of researchers, leaders, and PhD students to conduct research in emerging engineering and technology education areas. 2. Creating a body of research that improves our understanding of learning and …

Evaluation Of Two-Dimensional Hydraulic Modeling In A Natural River And Implications In Instream Flow Assessment Methods, Karl L. Tarbet

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Logan River was used as a study site to assess the capabilities of two-dimensional depth-averaged hydraulic modeling in the x-y plane of a natural river for use with instream flow studies. Data were collected to spatially represent the study reach with depth, velocity, northing, easting, elevation, and substrate values using a total station and electronic velocity meter. Computational finite element meshes were generated using four different density levels of geometry data to examine the relationship between field data density and computational mesh on geometry errors. Geometry errors were found to be related to smoothing effects, which removed complex channel …

Preliminary Evaluation Of The Effects Of A Pumping Well On Existing Surface Water Resources Located In T. 12n, R. 2e, Sec. 23, Cache And Box Elder Counties, Denny J. Johnson, Richard C. Peralta

Civil and Environmental Engineering Faculty Publications

This report contains the results of a preliminary study of the impact of pumping a well located in T. 12N, R. 2E, sec. 23, Cache and Box Elder Counties, Utah. A semianalytical capture zone analysis was performed to determine if pumping at the well is likely to reduce flow in Willow Creek or any of three springs in the surrounding area. The well has been used from 1974 to present and is sometimes pumped at 90 gallons per minute (gpm) (verbal communication, Veibell, 1996).

Evaluation Of Biological Treatability Of Soil Contaminated With Manufactured Gas Plant Waste, J. S. Ginn, Ronald C. Sims, I. P. Murarka

Biological Engineering Faculty Publications

The biological treatability of subsurface soil contaminated with manufactured gas plant (MGP) waste was evaluated. Mineralization assays incorporating ¹⁴C-phenanthrene were used to evaluate the biotransformation potential of indigenous microorganisms at the site. Multi-phase laboratory microcosms were used to evaluate the interphase transfer potential and chemical mass distribution of phenanthrene. The Microtox™ bioassay was used to evaluate detoxification trends at the site. Mineralization results indicated that indigenous microorganisms at the site were capable of transforming phenanthrene, a component of coal-tar creosote. Results also indicated that spiked ¹⁴C-phenanthrene mineralization was influenced by nutrient addition and by the amount of contamination. …

Design And Evaluation Of Stepped Spillways For High Dams, Jeffrey Scott Rau

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this research was to investigate the hydraulic performance of stepped spillways. A thorough investigation was made of all printed material on stepped spillways, and a summary of this material is presented in the text. Data from experiments in the laboratory were used to develop a design procedure for stepped spillways and hydraulic jump stilling basins. The experimental study was conducted at Utah State University - Utah Water Research Laboratory in Logan, Utah. Four models were built and tested in the laboratory under various flowrates.

The crest of the model spillway was constructed in the shape of a …

Thiokol/Wasatch Installation Evaluation Of The Redesigned Field Joint Protection System (Concepts 1 And 3) Final Test Report, United States, National Aeronautics And Space Administration

Miscellaney

Redesigned field joint protection system installations were performed between 7 and 15 Nov 1989 at the Thiokol Corporation Static Test Bay T-18. The purpose of the installations was to develop procedures for two field joint protection system redesign concepts (Concepts 1 and 3), and to evaluate the processing capability of each concept. The Concept 1 (Double Cork Band Design) configuration consists of two cork bands with K5NA ablation compound applied between them and to the bottom edge of the aft cork band. The Concept 3 (K5NA Design) configuration consists of a single layer of K5NA over the joint/heater/sensor/pin retainer band …

Review And Evaluation Of Current Design And Management Practices For Land Treatment Units Receiving Petroleum Wastes, J. P. Martin, Ronald C. Sims, J. Matthews

Biological Engineering Faculty Publications

Land treatment is categorized in the Resource Conservation and Recovery Act of 1976 (RCRA) as one of the land disposal options for managing hazardous wastes. Land treatment relies on detoxification, degradation, and immobilization of hazardous waste constituents within the defined treatment zone to ensure protection of surface water, groundwater, and air. Under the authority of Subtitle C of RCRA, the U.S. Environmental Protection Agency has promulgated regulations governing the treatment of hazardous wastes in land treatment units (40 CRF, Part 264, Subpart M, July, 1982).

This paper describes the land treatment practices used by petroleum waste land treatment facilities in …

Evaluation And Accessing Of Data For A Water Resources Simulator, Richard C. Peralta, Roberto Arce, Timothy Skergan

Civil and Environmental Engineering Faculty Publications

This report evaluates the availability of data needed to use a groundwater simulation model for real time conjunctive water management in the Arkansas Grand Prairie. It is assumed that the goal of such management is to protect existing groundwater rights by maintaining water levels so that wells do not go dry, even in time of drought.

Sufficient hydrogeologic data exists to use the simulation model to predict the effect of known pumping rates on groundwater levels. Developing an optimal set of "target" levels and annually managing pumping to achieve those levels requires additional data: fall groundwater levels, degree of connection …

Evaluation Of A Welded Wire Retaining Wall, Jerold Albert Bishop

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this paper is to evaluate the performance of a Welded Wire Retaining Wall and present design recommendations for its future use. Field data from the instrumentation of a Welded Wire Retaining Wall as well as laboratory data from a study of welded wire fabric as a reinforcing agent for soil was gathered. A study of the theory and practice of reinforced soil construction was made. On the basis of this study and the experimental data obtained, the wall is evaluated and design recommendations presented.

Farm Irrigation System Evaluation: A Guide For Management, John L. Merriam, Jack Keller

Civil and Environmental Engineering Faculty Publications

This manual describes and explains detailed procedures for field evaluation of the performance of several types of sprinkle, surface, and trickle (drip) irrigation systems and of management practices. Most chapters include lists of equipment needed for performing these evaluations, give step-by-step instructions for gathering data in the field, show sample forms for recording and organizing these field data, and present sample studies that demonstrate the entire process. The book includes analyses and recommendations for a few actual case studies.

The introduction states and explains the general concepts of uniformity, efficiency, and management that are used in evaluating each system and …