Open Access. Powered by Scholars. Published by Universities.®

Other Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Iowa State University

Discipline
Keyword
Publication Year
Publication
Publication Type

Articles 1 - 28 of 28

Full-Text Articles in Other Engineering

Creating Garment Simulations: Effectiveness Of Traditional Textile Testing Equipment Versus Kes And Fast Systems, Evrim Buyukaslan, Fatma Baytar, Fatma Kalaoglu Jan 2018

Creating Garment Simulations: Effectiveness Of Traditional Textile Testing Equipment Versus Kes And Fast Systems, Evrim Buyukaslan, Fatma Baytar, Fatma Kalaoglu

International Textile and Apparel Association (ITAA) Annual Conference Proceedings

3D virtual garment simulation software packages offer various fabric alternatives in their fabric libraries. However, these libraries are limited in terms of providing their users with particular fabric compositions, structures, and drape properties. When a specific fabric needs to be used for a garment simulation to understand how the end-product would look like, individual fabric mechanical properties must be entered into the software. For this purpose, usually fabric mechanical values measured by either KES or FAST systems are used. Although these systems provide precise measurements, they are very expensive to obtain. Our research questions emerged from the need to use ...


Zipping Through Time: Extending The Life Of Children's Wear With Transformable Design, Michelle Park, Ja Young Hwang Ph.D., Haviet Huong, Shalia Johnson, Yahan Quing Jan 2018

Zipping Through Time: Extending The Life Of Children's Wear With Transformable Design, Michelle Park, Ja Young Hwang Ph.D., Haviet Huong, Shalia Johnson, Yahan Quing

International Textile and Apparel Association (ITAA) Annual Conference Proceedings

This project is focused on addressing the problem of children outgrowing their garments too quickly. Designs focus on transforming garments to be used for multiple purposes, in particular a transformable waterproof baby carrier cover/ children's poncho and a size-changing dress. The designed garments were based on client needs, and longevity was approached by transforming both size and function. Size was addressed by using zippers, panels, and buttons; function was approached by selection of two items in the same category of use, i.e., as the child changes, so does the garment. The implementation of strategic expansion points effectively extends ...


Investigation Of The Convective Heat Transfer Coefficient Of The Hand And Fingers In Firefighter Gloves Using A Thermal Hand, Jie Yang, Li Wang, Weiwei Chen, Rui Li, Liwen Wang, Huanjiao Dong, Chunhui Xiang, Akm Mashud Alam, Guowen Song Jan 2018

Investigation Of The Convective Heat Transfer Coefficient Of The Hand And Fingers In Firefighter Gloves Using A Thermal Hand, Jie Yang, Li Wang, Weiwei Chen, Rui Li, Liwen Wang, Huanjiao Dong, Chunhui Xiang, Akm Mashud Alam, Guowen Song

International Textile and Apparel Association (ITAA) Annual Conference Proceedings

The heat transfer coefficients of the hands are critical inputs of the thermoregulation model that can simulate thermal responses of the hand and fingers. Besides, the hand has a greater surface area to mass ratio and complex anthropometric parameters, thus is extremely important in heat transfer and thermoregulation.

However, the convective heat transfer coefficients of the fingers, palm, and dorsal of the hand are not fully investigated and understood. Accordingly, there is an urgent need for full understanding of the convective heat transfer coefficients in both the whole-hand and regional segments. The results of this study will provide guidance for ...


Investigating The Effects Of Size On Glove Thermal Insulation Using A Thermal Hand, Weiwei Chen, Jie Yang, Li Wang, Rui Li, Chunhui Xiang, Huanjiao Dong, Liwen Wang, Akm Mashud Alam, Guowen Song Jan 2018

Investigating The Effects Of Size On Glove Thermal Insulation Using A Thermal Hand, Weiwei Chen, Jie Yang, Li Wang, Rui Li, Chunhui Xiang, Huanjiao Dong, Liwen Wang, Akm Mashud Alam, Guowen Song

International Textile and Apparel Association (ITAA) Annual Conference Proceedings

Thermal insulation for gloves has also been measured to assess comfort using thermal hands. However, the previous studies mainly focused on the thermal insulation among different types of gloves, rather than across different-sized gloves of the same type. Actually, the air gap thickness and volume between the skin of the hand and the gloves varies with the size of the gloves and on different locations on the hand, thereby affecting the heat and mass transfer between the skin and its thermal environment.

Consequently, different-sized gloves will affect the thermal responses of hand and fingers as well as the thermal comfort ...


Different Impacts Of Boot Height And Air Bottles On The Mobility Of Tall And Short Firefighters, Huiju Park, Rumit Singh Kakar, Jie Pei, Hyunji Lee, Joshua Tome, International Personnel Protection Inc Jan 2018

Different Impacts Of Boot Height And Air Bottles On The Mobility Of Tall And Short Firefighters, Huiju Park, Rumit Singh Kakar, Jie Pei, Hyunji Lee, Joshua Tome, International Personnel Protection Inc

International Textile and Apparel Association (ITAA) Annual Conference Proceedings

This study conducted biomechanical tests with 21 firefighters and found that there is a significant correlation between boot height and lower body mobility, and that using a fixed boot height mandated by NFPA 1971 standard decreased lower body ranges of motion during various firefighters' job-related tasks. Statistical analysis of large anthropometric data also shows a fixed boot height cannot accommodate a wide range of firefighters' leg length. These findings indicate that shorter firefighters are likely to have limited lower body mobility due to reduced clearance between the knee and top of the boot, and thus decreased space causing greater mechanical ...


Investigating The Effluent Of Aluminum Acetate As A Pre-Mordant On Cotton Print Cloth, Kowshik Saha, Sarif Ullah Patwary, Sherry Haar Jan 2018

Investigating The Effluent Of Aluminum Acetate As A Pre-Mordant On Cotton Print Cloth, Kowshik Saha, Sarif Ullah Patwary, Sherry Haar

International Textile and Apparel Association (ITAA) Annual Conference Proceedings

Pretreated cotton print cloths were mordanted with aluminum acetate at five concentrations (0.0, 2.5, 5.0, 7.5, and 10% owf). Inductively coupled plasma mass spectrometry (ICP-MS) technology was used to determine the aluminum present in the mordant liquor and clothes. The amount of aluminum absorbed by the cotton print cloth, regardless of mordant concentration, was low (2.31 -5.16%) compared to the amount of aluminum (158.9 "“ 36.6 mg) in the control solution. The results of this study suggest that the aluminum acetate mordant treatment bath for samples retains most of the metals while the ...


Measuring The Effectiveness Of Team-Based Learning Outcomes In A Human Factors Course, Michael Dorneich, Sarah Bickelhaupt, Cassandra Dorius, Georgeanne Artz, Holly Bender, Laura Bestler, Beth Caissie, Sandra Gahn, Keri Jacobs, Monica Lamm, Lisa Orgler, Jane Rongerude, Ann Smiley-Oyen, Richard Stone Dec 2016

Measuring The Effectiveness Of Team-Based Learning Outcomes In A Human Factors Course, Michael Dorneich, Sarah Bickelhaupt, Cassandra Dorius, Georgeanne Artz, Holly Bender, Laura Bestler, Beth Caissie, Sandra Gahn, Keri Jacobs, Monica Lamm, Lisa Orgler, Jane Rongerude, Ann Smiley-Oyen, Richard Stone

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

This paper will describe a synopsis of the development and application of a survey instrument to assess team skills and professional development outcomes of Team-Based Learning (TBL) in a human factors course. TBL is an advancing teaching pedagogy that shifts instruction from a traditional lecture-based teaching paradigm to a structured learning sequence that includes individual student preparation outside of class followed by active, in-class problem solving exercises completed by student learning teams. As an evolving teaching method, TBL appears to be producing new empirical learning outcomes in areas that have only preliminarily been explored. Traditionally, the effectiveness of TBL has ...


An Evaluation Of Cognitive Skill Degradation In Information Automation, Katherine Volz, Euijung Yang, Rachel Dudley, Elizabeth Lynch, Maria Dropps, Michael Dorneich Sep 2016

An Evaluation Of Cognitive Skill Degradation In Information Automation, Katherine Volz, Euijung Yang, Rachel Dudley, Elizabeth Lynch, Maria Dropps, Michael Dorneich

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

The purpose of this research is to investigate long term effects of cognitive skill degradation through theuse of automation. Even though advanced studies have looked into information automation (IA) in aviation,the amount of empirical data on the effects of these systems on the retention of cognitive skills is lessdeeply examined. Measurement and analysis of the effects of IA on cognitive performance is an importantfirst step in understanding cognitive skill degradation, which should be considered during the design ofthese systems. The use of an automation aid is expected to result in a high level of performance degradationover time. Participants were ...


A Process For Evaluating The Gender And Professionalism Of Web Design Elements, Jacklin Stonewall, Michael Dorneich Sep 2016

A Process For Evaluating The Gender And Professionalism Of Web Design Elements, Jacklin Stonewall, Michael Dorneich

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

This work lays the foundation for creating gender neutral web design guidelines by determining the following: the gendering of web design element examples (including whether some examples are distinctly masculine or feminine), the perceived professionalism of design elements, and whether there is an interaction between gender and professionalism. Designing for a particular gender is common in both product and web design, but in many situations is exclusionary. In the study, participants rated a series of graphical element examples in six categories: Font, Color, Image, Shape, Texture and Mixed Elements. Participants rated each element on their femininity, masculinity and professionalism. Some ...


Developing Game-Based Learning Requirements To Increase Female Middle School Students Interest In Computer Science, Desmond Bonner, Michael Dorneich Sep 2016

Developing Game-Based Learning Requirements To Increase Female Middle School Students Interest In Computer Science, Desmond Bonner, Michael Dorneich

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

This paper presents work on the development of a Game-Based Learning (GBL) application’s requirements for female middle school students which teaches fundamental concepts of programming. Currently, there are not enough students who desire to pursue Science, Technology, Engineering, and Mathematic (STEM) career fields. Additionally, female are underrepresented in STEM fields, and increased female participation may help partially address this gap. GBL was used to encourage middle school student interest in STEM by allowing them to practice computer science concepts in engaging contexts outside the classroom. The game Sorceress of Seasons was built to teach fundamental programming concepts, and was ...


Evaluation Of Etiquette Strategies To Adapt Feedback In Affect-Aware Tutoring, Euijung Yang, Michael Dorneich Sep 2016

Evaluation Of Etiquette Strategies To Adapt Feedback In Affect-Aware Tutoring, Euijung Yang, Michael Dorneich

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

The purpose of this research is to investigate how to mitigate user frustration and improve task performancein the context of human-computer interaction (HCI). Even though user frustration plays a role in manyaspects of HCI and studies have looked into the consequences of frustration in various fields, the ways tomitigate frustration are less deeply examined. Once the system has the ability to understand and includeuser emotions as factors in HCI, the interaction between the user and the computer system could be adaptedif the computers are able to modify its behavior with users in appropriate ways to further joint performance.Specifically, a ...


Using Human Factors To Establish Occupant Task Lists For Office Building Simulations, Kelly Kalvelage, Michael Dorneich Sep 2016

Using Human Factors To Establish Occupant Task Lists For Office Building Simulations, Kelly Kalvelage, Michael Dorneich

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

The purpose of this research is to establish an in-depth understanding of task-related occupant behaviors toserve as the basis for the design of an occupant-building interaction interface. Building simulations arefrequently used to design buildings and predict energy performance. Yet, all of these assumptions are relatedto occupant behavior and interactions with the building. In an occupant-controlled environment, anunderstanding of the occupant decision-making process must be represented in the simulation task lists.Current task lists assume general occupant behaviors based on averages, and lack the details required for thisunderstanding. This paper looks to strike a balance between simplicity and complexity in the ...


Utility Of Baroreflex Sensitivity As A Marker Of Stress, Amanda A. Anderson, Nir Keren, Andrew Lilja, Kevin Godby, Stephen B. Gilbert, Warren D. Franke Jun 2016

Utility Of Baroreflex Sensitivity As A Marker Of Stress, Amanda A. Anderson, Nir Keren, Andrew Lilja, Kevin Godby, Stephen B. Gilbert, Warren D. Franke

Industrial and Manufacturing Systems Engineering Publications

Presently, adaptive systems use various cognitive and cardiovascular measures to evaluate the functional state of the operator. One marker that has been largely ignored as an assessment tool is baroreflex sensitivity (BRS). This study examined the extent to which BRS changed in response to acute psychological and physical stressors. A total of 20 participants underwent 6-min exposures to a psychological stressor and a physical stressor. Baroreceptor sensitivity, blood pressure, heart rate, heart rate variability, stroke volume, cardiac output, mean blood pressure, total peripheral resistance, left ventricular ejection time, and pre-ejection period were continuously measured at rest and throughout the testing ...


The Hidden Challenges Of Team Tutor Development, Desmond Bonner, Anna Slavina, Anastacia Macallister, Joseph Holub, Stephen B. Gilbert, Anne M. Sinatra, Michael C. Dorneich, Eliot H. Winer Jan 2016

The Hidden Challenges Of Team Tutor Development, Desmond Bonner, Anna Slavina, Anastacia Macallister, Joseph Holub, Stephen B. Gilbert, Anne M. Sinatra, Michael C. Dorneich, Eliot H. Winer

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

This paper describes the unexpected challenges of team tutor development such as the task and logistics. Previously, a research team from Iowa State University (ISU) working with the U.S. Army Research Laboratory (ARL) developed the reconnaissance (Recon) task for simple team tutoring with the Generalized Intelligent Framework for Tutoring (GIFT) (Bonner et al., 2015; Gilbert et al., 2015). Considerations were included for the testing environment such as audio-based team interactions, initialization of the scenario simultaneously, and the inclusion of eyetracking and screen capture technology. Throughout the process of tutor development, several computational challenges have been encountered such as the ...


Gradient Enhanced Surrogate Modeling Methods For Nde Applications, Matthew R. Cherry, John C. Aldrin Jan 2016

Gradient Enhanced Surrogate Modeling Methods For Nde Applications, Matthew R. Cherry, John C. Aldrin

Review of Progress in Quantitative Nondestructive Evaluation

Over the past 15 years, there has been significant interest in the NDE community in surrogate modeling applied to both uncertainty propagation (UP) as well as inverse uncertainty quantification (UQ). There has been a general acceptance in the value of surrogates due to the quick model evaluations that can be made during an inverse problem or for fast Monte Carlo sampling, evidenced by the fact that surrogate modeling techniques now appear in multiple commercial NDE simulation tools. Many techniques have been explored such as regular grid methods, polynomial chaos, sparse grids, response surfaces, and Kriging models, among others. While these ...


An Iterative Design Of Experiments Based Data Collection Approach For Ultrasonic Guided Waves, Mark R. Courtier, Anthony J. Croxford, Kathryn Atherton Jan 2016

An Iterative Design Of Experiments Based Data Collection Approach For Ultrasonic Guided Waves, Mark R. Courtier, Anthony J. Croxford, Kathryn Atherton

Review of Progress in Quantitative Nondestructive Evaluation

To validate modelling results it is necessary to collect experimental data, in this case ultrasonic guided wave measurements to validate a forward model of an acoustic emission system on a complex structure. Traditionally when ultrasonic data is collected over an area of a structure it is collected in a raster scan. This approach comprehensively covers the area of interest at a desired resolution which is determined by the feature of the signals that needs to be measured. In most cases however the feature of interest, such as a defect or, in this work, a geometrical feature, is only present in ...


Applicability And Limitations Of 3d Printing For Civil Structures, Mostafa Yossef, An Chen Jan 2015

Applicability And Limitations Of 3d Printing For Civil Structures, Mostafa Yossef, An Chen

Civil, Construction and Environmental Engineering Conference Presentations and Proceedings

Three Dimensional Printing (3DP) is a manufacturing process that builds layers to create a three-dimensional solid object from a digital model. It allows for mass customization and complex shapes that cannot be produced in other ways, eliminates the need for tool production and its associated labor, and reduces waste stream. Because of these advantages, 3DP has been increasingly used in different areas, including medical, automotive, aerospace, etc. This automated and accelerated process is also promising for civil structures, including building and bridges, which require extensive labor. If successful, it is expected that 3D structural printing can significantly reduce the construction ...


Decision-Based Learning For A Sophomore Level Thermodynamics Course, Matthew Hagge, Mostafa Amin-Naseri, Stephen B. Gilbert, John K. Jackman, Enruo Guo, Gloria Starns, Leann E. Faidley Jan 2015

Decision-Based Learning For A Sophomore Level Thermodynamics Course, Matthew Hagge, Mostafa Amin-Naseri, Stephen B. Gilbert, John K. Jackman, Enruo Guo, Gloria Starns, Leann E. Faidley

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Decision based learning for a sophomore level thermodynamics courseAn electronic tutor was designed and used to study the effectiveness of a new pedagogy calledDecision Based Learning. Decision based learning (DBL) has similarities to existing activelearning methods, but differs in the following important ways: 1) learning consists of developinga general to specific decision set that students can use to solve novel problems 2) students practicemaking the decisions in the instructor decision set, and are given help with understanding. Thegoal of this method is to improve student understanding through the process of decision makingso that they have a better chance of solving ...


Evaluating Producer Selection Policies In Intermediated Regional Food Distribution Systems: An Agent-Based Approach, Caroline C. Krejci, Richard T. Stone, Michael C. Dorneich, Stephen B. Gilbert Jan 2015

Evaluating Producer Selection Policies In Intermediated Regional Food Distribution Systems: An Agent-Based Approach, Caroline C. Krejci, Richard T. Stone, Michael C. Dorneich, Stephen B. Gilbert

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

The recent increase in demand for regionally-produced food has resulted in a need for more efficient distribution methods. To connect regional food producers and consumers, intermediated regional food supply networks have developed. The intermediary, known as a regional food hub, serves as an aggregation point for products and information and may also act as a filter to ensure that the requirements of both producers and consumers are consistently met. This paper describes an empirically-based agent-based model of a regional food network in central Iowa that is intermediated by a food hub. The model was used to test a variety of ...


Flight Deck Information Automation: A Human-In-The-Loop In-Trail Procedure Simulation Study, Emmanuel Letsu-Dake, William Rogers, Stephen D. Whitlow, Michael Dillard, Michael C. Dorneich, Rachel Dudley Jan 2015

Flight Deck Information Automation: A Human-In-The-Loop In-Trail Procedure Simulation Study, Emmanuel Letsu-Dake, William Rogers, Stephen D. Whitlow, Michael Dillard, Michael C. Dorneich, Rachel Dudley

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Information automation systems are generally intended to support pilot tasks and improve flightcrew awareness and decision making, but not to directly control the aircraft or its systems. As a result these systems do not include cases where automation decisions and actions directly affect the aircraft performance, flight path or systems. Next Generation Air Transportation System (NextGen) operational concepts and technologies will dramatically affect both the types and amount of information available on flight decks. Much of that information will be produced by flight deck information automation systems that collect, process, and present that information to the flightcrew. It is therefore ...


Authoring Example-Based Tutors For Procedural Tasks, Stephen B. Blessing, Vincent Aleven, Stephen B. Gilbert, Neil T. Heffernan, Noboru Matsuda, Antonija Mitrovic Jan 2015

Authoring Example-Based Tutors For Procedural Tasks, Stephen B. Blessing, Vincent Aleven, Stephen B. Gilbert, Neil T. Heffernan, Noboru Matsuda, Antonija Mitrovic

Industrial and Manufacturing Systems Engineering Publications

No abstract provided.


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. Jan 2014

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.


Space Perception In Virtual Environments: Displacement From The Center Of Projection Causes Less Distortion Than Predicted By Cue-Based Models, Jonathan W. Kelly, Melissa Burton, Brice Pollock, Eduardo Rubio, Michael Curtis, Julio De La Cruz, Stephen B. Gilbert, Eliot H. Winer Jan 2013

Space Perception In Virtual Environments: Displacement From The Center Of Projection Causes Less Distortion Than Predicted By Cue-Based Models, Jonathan W. Kelly, Melissa Burton, Brice Pollock, Eduardo Rubio, Michael Curtis, Julio De La Cruz, Stephen B. Gilbert, Eliot H. Winer

Industrial and Manufacturing Systems Engineering Publications

Virtual reality systems commonly include both monocular and binocular depth cues, which have the potential to provide viewers with a realistic impression of spatial properties of the virtual environment. However, when multiple viewers share the same display, only one viewer typically receives the projectively correct images. All other viewers experience the same images despite displacement from the center of projection (CoP). Three experiments evaluated perceptual distortions caused by displacement from the CoP and compared those percepts to predictions of models based on monocular and binocular viewing geometry. Leftward and rightward displacement from the CoP caused virtual angles on the ground ...


The Right View From The Wrong Location: Depth Perception In Stereoscopic Multi-User Virtual Environments, Brice Pollock, Melissa Burton, Jonathan W. Kelly, Stephen B. Gilbert, Eliot H. Winer Apr 2012

The Right View From The Wrong Location: Depth Perception In Stereoscopic Multi-User Virtual Environments, Brice Pollock, Melissa Burton, Jonathan W. Kelly, Stephen B. Gilbert, Eliot H. Winer

Industrial and Manufacturing Systems Engineering Publications

Stereoscopic depth cues improve depth perception and increase immersion within virtual environments (VEs). However, improper display of these cues can distort perceived distances and directions. Consider a multi-user VE, where all users view identical stereoscopic images regardless of physical location. In this scenario, cues are typically customized for one "leader" equipped with a head-tracking device. This user stands at the center of projection (CoP) and all other users ("followers") view the scene from other locations and receive improper depth cues. This paper examines perceived depth distortion when viewing stereoscopic VEs from follower perspectives and the impact of these distortions on ...


Lvc Interaction Within A Mixed Reality Training System, Brian Pollock, Eliot H. Winer, Stephen B. Gilbert, Julio De La Cruz Jan 2012

Lvc Interaction Within A Mixed Reality Training System, Brian Pollock, Eliot H. Winer, Stephen B. Gilbert, Julio De La Cruz

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

The United States military is increasingly pursuing advanced live, virtual, and constructive (LVC) training systems for reduced cost, greater training flexibility, and decreased training times. Combining the advantages of realistic training environments and virtual worlds, mixed reality LVC training systems can enable live and virtual trainee interaction as if co-located. However, LVC interaction in these systems often requires constructing immersive environments, developing hardware for live-virtual interaction, tracking in occluded environments, and an architecture that supports real-time transfer of entity information across many systems. This paper discusses a system that overcomes these challenges to empower LVC interaction in a reconfigurable, mixed ...


Omniscribe – Enhancing Aar In An Lvc Environment, Alden Peterson, Stephen B. Gilbert, Eliot H. Winer, Jeffrey Welch, Julio De La Cruz, Hector Gonzalez Jan 2012

Omniscribe – Enhancing Aar In An Lvc Environment, Alden Peterson, Stephen B. Gilbert, Eliot H. Winer, Jeffrey Welch, Julio De La Cruz, Hector Gonzalez

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Innovations in live, virtual and constructive (LVC) environments geared for US military joint force training allow a more effective utilization of space and time for training exercises across the globe. As this use becomes more prominent, the need for a suitable after action review (AAR) tool to incorporate an ever-increasing number of data sources is fast becoming a requirement. To perform an AAR fully, data from a variety of input sources must be saved, synchronized, and analyzed. It is important to equip military trainers with an effective tool to facilitate this need for comprehensive data in AARs to maximize the ...


Preparation Of Fish Feed Ingredients: Reduction Of Carotenoids In Corn Gluten Meal, H. Park, Rolando A. Flores, Lawrence A. Johnson Jun 1997

Preparation Of Fish Feed Ingredients: Reduction Of Carotenoids In Corn Gluten Meal, H. Park, Rolando A. Flores, Lawrence A. Johnson

Center for Crops Utilization Research Publications

Carotenoids in corn gluten meal (CGM) were eliminated by extraction with ethanol and butanol or by bleaching with soy flour as a lipoxygenase source. Corn gluten meal (50 g at 67% moisture basis) was extracted with 150 mL of ethanol or butanol followed by a second extraction with 100 mL of extractant. Of the carotenoids present in CGM, 87% and 94% were removed after the second extraction with ethanol and butanol, respectively. Total solid loss during extraction was greater with butanol (24%) than with ethanol (10%). Increasing the level of soy flour substituted from 5% to 15% did not improve ...


Cost Effective, High Technology Classroom Delivery Systems, Lawrence J. Genalo Jun 1993

Cost Effective, High Technology Classroom Delivery Systems, Lawrence J. Genalo

Materials Science and Engineering Conference Papers, Posters and Presentations

Iowa State University is a member of the Synthesis Coalition, funded by the National Science Foundation in the inaugural year for coalitions. The other coalition partners are Cal Poly at San Luis Obispo, Cornell, Hampton, Southem, Stanford, Tuskegee, and UC Berkeley. The Synthesis Coalition is creating a National Engineering Education Delivery System (NEEDS). This will include a multimedia data base of engineering courseware modules which can be transported at network speeds for classroom delivery. In order for these lesson modules to be effectively delivered, appropriate classroom delivery systems are being designed, prototyped, and tested.