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Articles 1 - 24 of 24
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Low-Cost Rural Surface Alternatives: Demonstration Project, Cheng Li, Jeramy C. Ashlock, David White, Pavana Vennapusa
Low-Cost Rural Surface Alternatives: Demonstration Project, Cheng Li, Jeramy C. Ashlock, David White, Pavana Vennapusa
Jeramy C. Ashlock
The goals of this project were to implement several stabilization methods for preventing or mitigating freeze-thaw damage to granular surfaced roads and identify the most effective and economical methods for the soil and climate conditions of Iowa. Several methods and technologies identified as potentially suitable for Iowa were selected from an extensive analysis of existing literature provided with Iowa Highway Research Board (IHRB) Project TR-632.Using the selected methods, demonstration sections were constructed in Hamilton County on a heavily traveled two-mile section of granular surfaced road that required frequent maintenance during previous thawing periods. Construction procedures and costs of the demonstration …
Development Of A Safety Decision-Making Scenario To Measure Worker Safety In Agriculture, Gretchen A. Mosher Dr., Nir Keren Dr., Steven A. Freeman Dr., Charles R. Hurburgh Dr.
Development Of A Safety Decision-Making Scenario To Measure Worker Safety In Agriculture, Gretchen A. Mosher Dr., Nir Keren Dr., Steven A. Freeman Dr., Charles R. Hurburgh Dr.
Gretchen A. Mosher
No abstract provided.
Safety Impacts Of Signal-Warning Flashers And Speed Control At High-Speed Signalized Intersections, Zifeng Wu, Anuj Sharma, Fred L. Mannering, Shefang Wang
Safety Impacts Of Signal-Warning Flashers And Speed Control At High-Speed Signalized Intersections, Zifeng Wu, Anuj Sharma, Fred L. Mannering, Shefang Wang
Anuj Sharma
For many years, to reduce the crash frequency and severity at high-speed signalized intersections, warning flashers have been used to alert drivers of potential traffic-signal changes. Recently, more aggressive countermeasures at such intersections include a speed-limit reduction in addition to warning flashers. While such speed-control strategies have the potential to further improve the crash-mitigation effectiveness of warning flashers, a rigorous statistical analysis of crash data from such intersections has not been undertaken to date. This paper uses 10-year crash data from 28 intersections in Nebraska (all with intersection approaches having signal-warning flashers; some with no speed-limit reduction, and the others …
Out-Of-Classroom Experiences: Bridging The Disconnect Between The Classroom, The Engineering Workforce, And Ethical Development, Brian A. Burt, Donald D. Carpenter, Matthew A. Holsapple, Cynthia J. Finelli, Rob M. Bielby, Janel A. Sutkus, Trevors S. Harding
Out-Of-Classroom Experiences: Bridging The Disconnect Between The Classroom, The Engineering Workforce, And Ethical Development, Brian A. Burt, Donald D. Carpenter, Matthew A. Holsapple, Cynthia J. Finelli, Rob M. Bielby, Janel A. Sutkus, Trevors S. Harding
Brian Burt A.
The extant research on engineering ethics instruction shows that students receive ethics instruction within the engineering curricula. Unfortunately, the methods used in engineering undergraduate classrooms are described as ‘‘abstract’’ and have mixed results related to impacting students’ ethical development. Thus, exploring how out-of-classroom experiences—as a curricular alternative—influences students’ ethical development is warranted. This is an exploratory investigation to determine how out-of-classroom experiences influence students’ ethical development. The authors define ethical development using three constructs: knowledge of ethics, ethical reasoning, and ethical behavior. We draw upon a conceptual model that suggests students’ ethical development is impacted by what takes place inside …
Nanotechnology Education—First Step In Implementing A Spiral Curriculum, Ganesh Balasubramanian, Vinod K. Lohani, Ishwar K. Puri, Scott W. Case, Roop L. Mahajan
Nanotechnology Education—First Step In Implementing A Spiral Curriculum, Ganesh Balasubramanian, Vinod K. Lohani, Ishwar K. Puri, Scott W. Case, Roop L. Mahajan
Ganesh Balasubramanian
A nanotechnology learning module was implemented into a freshman engineering course at Virginia Tech. The novelty of our approach is that an established spiral curriculum model has been employed, for the first time to the best of authors’ knowledge, to design the nanotechnology option. The module was piloted in a freshman class (180 students) during spring ‘08. The key components included (1) a prior knowledge survey, (2) a 40-minute in-class presentation on basic nanotechnology concepts, (3) an activity that involves nanoscale image analysis and the plotting of molecular forces usingLabVIEWsoftware,and(4)apost-modulesurvey.Lessonslearnedfromthepilotimplementationwereincorporated appropriately to expose roughly 1450 freshmen to nanotechnology basics in …
Effects Of Dietary Distillers Dried Grains With Solubles And Soybean Meal On Extruded Pellet Characteristics And Growth Responses Of Juvenile Yellow Perch, Travis W. Schaeffer, Michael L. Brown, Kurt A. Rosentrater
Effects Of Dietary Distillers Dried Grains With Solubles And Soybean Meal On Extruded Pellet Characteristics And Growth Responses Of Juvenile Yellow Perch, Travis W. Schaeffer, Michael L. Brown, Kurt A. Rosentrater
Kurt A. Rosentrater
A 126-d feeding trial was performed to investigate graded combinations of distillers dried grains with solubles (DDGS) and soybean meal (SBM) in diets formulated for yellow perch Perca flavescens. Six experimental diets contained DDGS and SBM at 0 and 31.5% (dry matter basis), respectively (0/31.5 diet), 10 and 26% (10/26), 20 and 20.5% (20/20.5), 30 and 15% (30/15), 40 and 9.5% (40/9.5), and 50 and 4% (50/4) to obtain similar levels of crude protein (mean ± SE = 30.1 ± 0.2%), crude lipid (16.7 ± 0.7%), and digestible energy (13.5 ± 0.2 kJ/g). Fourteen fish (initial individual weight = 19.1 …
Tilapia: Profile And Economic Importance, Kamal Mjoun, Kurt A. Rosentrater, Michael L. Brown
Tilapia: Profile And Economic Importance, Kamal Mjoun, Kurt A. Rosentrater, Michael L. Brown
Kurt A. Rosentrater
Tilapia is the common name broadly applied to a group of cichlid fishes native to Africa, the Mediterranean, and the Middle East. Tilapia are some of the oldest cultured fishes, as depicted in line drawings found in Egyptian tombs that date back to 2000 BC. This group consists of three economically important genera, which are taxonomically distinguished according to their reproductive behaviors: Tilapia, Oreochromis, and Sarotherodon, all are commonly known as “tilapia.” Tilapia are biparental caring-substrate spawners; Oreochromis are generally maternal mouth brooders; and Sarotherodon are generally paternal or biparental mouth brooders. Currently, Nile tilapia (Oreochromis niloticus; fig. 1) and …
Tilapia: Environmental Biology And Nutritional Requirements, Kamal Mjoun, Kurt A. Rosentrater, Michael L. Brown
Tilapia: Environmental Biology And Nutritional Requirements, Kamal Mjoun, Kurt A. Rosentrater, Michael L. Brown
Kurt A. Rosentrater
Tilapia is one of the most widely cultured fish in the world. Currently, farmed tilapia represents more than 75% of world tilapia production (FAO, 2009), and this contribution has been exponentially growing in recent years. Several factors have contributed to the rapid global growth of tilapia. Tilapia are easily cultured and highly adaptable to a wide range of environmental conditions. Tilapia feed on a wide variety of dietary sources, including phytoplankton, periphyton, zooplanktons, larval fish, and detritus. Adult tilapia are principally herbivorous but readily adapt to complete commercial diets based on plant and animal protein sources. In the United States, …
Malnutrition, A Global Problem, Shirin Pourafshar, Kurt A. Rosentrater, Padmanaban Krishnan
Malnutrition, A Global Problem, Shirin Pourafshar, Kurt A. Rosentrater, Padmanaban Krishnan
Kurt A. Rosentrater
Malnutrition is a general term for medical conditions caused by an inadequate diet and poor nutrition. Hunger and malnutrition are among the major difficulties confronting many countries around the world. Malnutrition can be caused by several factors, such as the sharp increase in population (current world population is approximately 6,800,000,000), poor distribution of foods, lack of access to highly nutritious foods, and most important, lack of knowledge about healthy diets. Malnutrition can lead to other problems, such as reduced school attendance, learning capacity, spread of HIV/AIDS, malaria and other diseases, and it can have a negative effect on a nation’s …
Sensory Evaluation Of Barley Chocolate Chip Cookies By Consumers With Different Demographic Background And Eating Patterns, Maria Botero Omary, Kurt A. Rosentrater, Douglas L. Lewis, Elizabeth Arndt, Diana J. Frost, Lauren M. Winstone
Sensory Evaluation Of Barley Chocolate Chip Cookies By Consumers With Different Demographic Background And Eating Patterns, Maria Botero Omary, Kurt A. Rosentrater, Douglas L. Lewis, Elizabeth Arndt, Diana J. Frost, Lauren M. Winstone
Kurt A. Rosentrater
Health organizations have recommended an increase in consumption of whole grains, total dietary fiber, and soluble fiber to help reduce the potential risk factor for the development of type-2 diabetes, obesity, and cardiovascular disease, among others. The purpose of this project was to determine the sensory characteristics of chocolate chip (CC) cookies containing a high-soluble fiber whole barley flour (HSFWB). Cookies with 0, 30, 50, and 70% HSFWB were evaluated for appearance, color, flavor, texture, and overall acceptability using a 9-point hedonic scale. Forty-nine students, faculty, and staff tested the cookies on three different days. Demographic and behavioral data on …
Understanding Consumer Preference For Functional Barley Tortillas Through Sensory, Demographic, And Behavioral Data, Ayako Toma, Maria Botero Omary, Kurt A. Rosentrater, Elizabeth A. Arndt, Naruemon Prasopsunwattana, Sutida Chongcham, Rolando A. Flores
Understanding Consumer Preference For Functional Barley Tortillas Through Sensory, Demographic, And Behavioral Data, Ayako Toma, Maria Botero Omary, Kurt A. Rosentrater, Elizabeth A. Arndt, Naruemon Prasopsunwattana, Sutida Chongcham, Rolando A. Flores
Kurt A. Rosentrater
Consumption of whole grains as part of a health-promoting diet is encouraged among Americans due to beneficial nutrients and phytochemicals. The main objectives of this study were to investigate the effect of whole barley flour particle size on consumer acceptance of whole grain and soluble fiber-enriched tortillas; to examine the effect of demographic and behavioral data on consumer acceptance; and to establish relationships between consumer acceptance and survey results to identify market opportunities among particular groups of consumers. Four experimental tortillas and two representative commercial brands were tested by 95 untrained panelists using a 9-point hedonic scale for appearance, color, …
Ifees: Enhancing Engineering Education At A Global Scale, Lueny Morrell, Claudio Borri, Hans J. Hoyer, Sarah A. Rajala, Seeram Ramakrishna, Xavier Fouger, Bruno Laporte, José Carlos Quadrado, Maria M. Larrondo Petrie, Duncan Mckenzie Frasier
Ifees: Enhancing Engineering Education At A Global Scale, Lueny Morrell, Claudio Borri, Hans J. Hoyer, Sarah A. Rajala, Seeram Ramakrishna, Xavier Fouger, Bruno Laporte, José Carlos Quadrado, Maria M. Larrondo Petrie, Duncan Mckenzie Frasier
Sarah A. Rajala
Engineering and technology play a key role in globalization as developed and developing countries develop and implement effective and efficient strategies that advance their economies and social development. Engineering has played a critical role in economic development in the history of civilization, because engineers are important not only in solving local problems but also in knowledge creation and knowledge transfer. Thus, science and technology education need to be in continuous evolvement in order to keep assisting countries reduce poverty, boost socio-economic development and make the right decisions for sustainable and environmentally compatible development. In a flat world, a global approach …
Engineering Education Societies Becoming Global: The Evolving Development Of The International Federation Of Engineering Education Societies (Ifees), Lueny Morell, Claudio Borri, Sarah A. Rajala, Bruno Laporte, Maira M. Larrondo Petrie, Seeram Ramakrishna, Xavier Fouger, Adriana Garboan, Jose Carlos Quadrado, Duncan Fraser, Hans Hoyer
Engineering Education Societies Becoming Global: The Evolving Development Of The International Federation Of Engineering Education Societies (Ifees), Lueny Morell, Claudio Borri, Sarah A. Rajala, Bruno Laporte, Maira M. Larrondo Petrie, Seeram Ramakrishna, Xavier Fouger, Adriana Garboan, Jose Carlos Quadrado, Duncan Fraser, Hans Hoyer
Sarah A. Rajala
Globalization is making both developed and developing countries think about effective and efficient strategies that will advance their economies and social development. Throughout the history of civilization, engineering has played a critical role in economic development. Engineers are key not only in solving local problems but also in knowledge creation and knowledge transfer. Thus, it is imperative that technical know-how be supplemented with professional skills to develop an ‘adaptive leader’ who is capable of addressing the multiple challenges of an ever changing world. The key-question posed by the 21st century global economy to engineering educators and stake-holders is this: “How …
Mycotoxins In Corn Distillers Grains: A Concern In Ruminants?, Alvaro Garcia, Kenneth Kalscheur, Arnold Hippen, David Schingoethe, Kurt A. Rosentrater
Mycotoxins In Corn Distillers Grains: A Concern In Ruminants?, Alvaro Garcia, Kenneth Kalscheur, Arnold Hippen, David Schingoethe, Kurt A. Rosentrater
Kurt A. Rosentrater
Themain fungi that produce toxins during storage belong to three genera: Aspergillus, Fusarium, and Penicillium. When dealing with cattle diets, it is not easy to correlate the presence of mycotoxins to that of molds. The same types of molds can produce different types of toxins, and different types ofmolds can produce the samemycotoxin.
An Integrated Living And Learning Community For First And Second Year Undergraduate Women In Science & Engineering, Katherine Titus-Becker, Sarah A. Rajala, Laura Bottomley, Dianne Raubenheimer, Jo-Ann Cohen, Kala Bullett, Susan Grant, Fay Cobb Payton, Barbara Kirby, Adrianna Kirkman, Wendy Krause, Carrie Thomas
An Integrated Living And Learning Community For First And Second Year Undergraduate Women In Science & Engineering, Katherine Titus-Becker, Sarah A. Rajala, Laura Bottomley, Dianne Raubenheimer, Jo-Ann Cohen, Kala Bullett, Susan Grant, Fay Cobb Payton, Barbara Kirby, Adrianna Kirkman, Wendy Krause, Carrie Thomas
Sarah A. Rajala
The Women in Science and Engineering (WISE) Village combines a group living experience with resident, upper-class mentors who assist in the transition to university life. Programs for the WISE community are designed to promote academic success, foster the formation of lasting relationships with fellow students, professors and mentors, and provide out-of-classroom experiences. The WISE Village is a supportive environment in which women engage in focused inquiry within their disciplines and develop the skills and talents necessary to become successful students and professionals in STEM fields. When the WISE Village began in 2003, it was as a partnership with University Housing, …
The North Carolina State University Women In Science And Engineering Program: A Community For Living And Learning, Sarah A. Rajala, Laura J. Bottomley, E. A. Parry, J. D. Cohen, Susan C. Grant, C. J. Thomas, T. M. Doxey, G. Perez, R. E. Collins, J. E. Spurlin
The North Carolina State University Women In Science And Engineering Program: A Community For Living And Learning, Sarah A. Rajala, Laura J. Bottomley, E. A. Parry, J. D. Cohen, Susan C. Grant, C. J. Thomas, T. M. Doxey, G. Perez, R. E. Collins, J. E. Spurlin
Sarah A. Rajala
Women are underrepresented in many of the disciplines in engineering, the mathematical sciences, and the physical and natural sciences, both at the undergraduate and the graduate levels. Depending upon the discipline, we lose women at varying points along the way. The pipeline of women interested in studying in engineering disciplines and in physics, for example, narrows considerably at the undergraduate level. In other disciplines such as mathematics, the retention rate for women at major research universities is much lower than at liberal arts institutions and the percentage of women who pursue graduate studies is much lower than that of their …
K-12 And University Collaboration: A Vehicle To Improve Curriculum And Female Enrollment In Engineering And Technology, Janis P. Terpenny, Thomas Gralinski
K-12 And University Collaboration: A Vehicle To Improve Curriculum And Female Enrollment In Engineering And Technology, Janis P. Terpenny, Thomas Gralinski
Janis P. Terpenny
In 1993, the State of Massachusetts enacted the Educational Reform Act to improve student performance and to increase school accountability. One of the curriculum frameworks of this initiative is titled Science and Technology/Engineering. One of the strands within that framework, Technology/Engineering, outlines standards in seven curriculum areas to be assessed at the high school level on the Massachusetts Comprehensive Assessment System (MCAS). This framework is somewhat controversial but supported by numerous surveys focusing on national needs. The movement of traditional Industrial Arts programs to a Technology/Engineering approach in both delivery and content has created a new set of problems with …
Outcomes Assessment: Developing An Electronic Assessment Database As A Model For Collection And Analysis Of Data, Joni E. Spurlin, Sarah A. Rajala, Jerome P. Lavelle, O. Jerome Hoskins
Outcomes Assessment: Developing An Electronic Assessment Database As A Model For Collection And Analysis Of Data, Joni E. Spurlin, Sarah A. Rajala, Jerome P. Lavelle, O. Jerome Hoskins
Sarah A. Rajala
As the ABET process in each institution moves toward outcomes assessment, it pushes each program to develop and implement its outcome assessment plans. Assessment plans document how programs will gather data, interpret the findings, and use the results to make improvements in programs, curricula, and resources. The ABET team at North Carolina State University (faculty from each engineering discipline along with assessment-knowledgeable personnel) has developed a model that academic programs within the College of Engineering use to determine what data to gather, where to obtain the data, and what criteria may be most appropriate when interpreting the data. This paper …
Succeed-Sponsored Freshman Year Engineering Curriculum Improvements At Nc State: A Longitudinal Study Of Retention, Matthew W. Ohland, Sarah A. Rajala, Timothy J. Anderson
Succeed-Sponsored Freshman Year Engineering Curriculum Improvements At Nc State: A Longitudinal Study Of Retention, Matthew W. Ohland, Sarah A. Rajala, Timothy J. Anderson
Sarah A. Rajala
NC State’s involvement in the NSF-sponsored SUCCEED Coalition has led to a number of changes to the freshman year of the engineering curriculum as reported previously (e.g., ASEE 1999, Porter, et al.). An explicit objective of these changes was to retain in engineering those students who were qualified and interested in engineering, but were leaving engineering for other reasons. While a number of isolated innovations have been studied and have demonstrated positive benefit, this study looks at each freshman cohort from 1987 through 1998 to evaluate changes in retention in engineering during that period. Eleven cohorts were studied; five (1987- …
Evaluation Of Fabric Swatch Types For Relative Odor Intensity At Beef Cattle Feedyards, Sean D. See, David B. Parker, Brent W. Auvermann, Jacek A. Koziel, John Sweeten
Evaluation Of Fabric Swatch Types For Relative Odor Intensity At Beef Cattle Feedyards, Sean D. See, David B. Parker, Brent W. Auvermann, Jacek A. Koziel, John Sweeten
Jacek A. Koziel
A research project was conducted to determine which type of fabric swatch was best suited for on-site sampling of odor intensity at open-lot beef cattle feeding operations. Five different types of fabric were tested: cotton flannel, cotton muslin, acetate, polyester and polyester felt. Square swatches (20 × 20 cm) were suspended 1 m above the ground surface downwind of cattle pens for 24 hours. The swatches were placed in glass jars and presented to 8-10 human panelists who were asked to rank the swatches based on relative odor intensity. Five trials were conducted at 3 feedyards. Sums of ranks and …
North Carolina State University Summer Transition Program – A High School To College Bridge Program For Enhancing Undergraduate Engineering Education, Tony L. Mitchell, Alisa Hunt-Lowery, Sarah A. Rajala
North Carolina State University Summer Transition Program – A High School To College Bridge Program For Enhancing Undergraduate Engineering Education, Tony L. Mitchell, Alisa Hunt-Lowery, Sarah A. Rajala
Sarah A. Rajala
The NC State University College of Engineering is an internationally recognized producer of engineers and computer scientists who are prepared to make an immediate contribution to the workforce. Our research faculty are recognized around the world for cutting edge research. Essential to our mission and continued success is a steady stream of top-notch students who contribute to and celebrate ethnic, academic and gender diversity. Each year an entering freshman class of 1100 new engineering students includes 20% women and 20% underrepresented minority students. The rate at which they persist through our undergraduate program is impacted by how they adapt during …
North Carolina State University Center For Minority Engineer Development, Tony L. Mitchell, Sarah A. Rajala, Laura J. Bottomley, Mary Clare Robbins
North Carolina State University Center For Minority Engineer Development, Tony L. Mitchell, Sarah A. Rajala, Laura J. Bottomley, Mary Clare Robbins
Sarah A. Rajala
North Carolina State University, located in Raleigh, North Carolina, USA, is the largest state-supported university of the sixteen-campus University of North Carolina educational system. The College of Engineering at NC State University is among the best in the country, offering outstanding degree programs and preparing students for exciting and rewarding careers. Our graduates are heavily recruited internationally for positions in a variety of settings, including business management, construction, transportation, hardware and software development, computer engineering and design. The College of Engineering comprises 10 departments offering 16 BS, 17 MS, and 14 Ph.D. degree programs and conducts the largest undergraduate and …
Introduction To Engineering Problem Solving—A New Course For 1100 First Year Engineering Students, Richard L. Porter, Laura J. Bottomley, Mary Clare Robbins, Walthea V. Yarbrough, Sarah A. Rajala, Hugh Fuller
Introduction To Engineering Problem Solving—A New Course For 1100 First Year Engineering Students, Richard L. Porter, Laura J. Bottomley, Mary Clare Robbins, Walthea V. Yarbrough, Sarah A. Rajala, Hugh Fuller
Sarah A. Rajala
During the past several years, NC State University has offered several experimental courses designed for the first year student in engineering; IMPEC, an integrated approach to mathematics, physics, engineering, and chemistry; E123, a mechanical dissection course which is now linked with the first year writing and composition course; and ECE 292D, a hands-on team based design course offered to upper class students as well. All were offered as an alternative to the introductory course (E100) that had little academic content, no engineering problem solving, and consisted of a large lecture room format with information dissemination as the major goal. Although …
Attitude About Engineering Survey, Fall 1995 And 1996: A Study Of Confidence By Gender, Hugh Fuller, Susan C. Grant, Kristine C. Lawyer, Richard L. Porter, Sarah A. Rajala
Attitude About Engineering Survey, Fall 1995 And 1996: A Study Of Confidence By Gender, Hugh Fuller, Susan C. Grant, Kristine C. Lawyer, Richard L. Porter, Sarah A. Rajala
Sarah A. Rajala
One of the primary goals of the North Carolina State University College of Engineering (COE) is to enroll the best undergraduate students possible. One factor hampering the achievement of this goal is the lack of interest of many female high school students in the traditionally male-dominated field of engineering. With no special recruiting activities aimed at informing young women about the field of engineering and recruiting them to our campus, the results are not surprising: even though women represent forty percent of the undergraduate enrollment at the University, they represent just under twenty percent in the COE. In order to …