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Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering

Mitigating Visually Induced Motion Sickness: A Virtual Hand-Eye Coordination Task, Michael Curtis, Kayla Dawson, Kelli Jackson, Liat Litwin, Chase Meusel, Michael Dorneich, Stephen Gilbert, Jonathan Kelly, Richard Stone, Eliot Winer Dec 2015

Mitigating Visually Induced Motion Sickness: A Virtual Hand-Eye Coordination Task, Michael Curtis, Kayla Dawson, Kelli Jackson, Liat Litwin, Chase Meusel, Michael Dorneich, Stephen Gilbert, Jonathan Kelly, Richard Stone, Eliot Winer

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Virtual reality has grown rapidly over the past decade, yet visually induced motion sickness (VIMS),continues to affect the usability of this technology. Aside from medicine, physical hand-eye-coordinationtasks have been found to be effective in mitigating symptoms of VIMS, however the need for equipmentoutside of virtual reality limits the usefulness of these mitigation techniques. In this study, 21 participantswere sickened via a virtual obstacle course and used one of two mitigation techniques. The first, naturaldecay, is simply waiting outside the virtual environment (VE) for symptoms to subside; the other was avirtual peg-in-hole task, performed in the VE with a gamepad ...


Assessing Values-Based Sourcing Strategies In Regional Food Supply Networks: An Agent-Based Approach, Caroline C. Krejci, Michael C. Dorneich, Richard T. Stone Oct 2015

Assessing Values-Based Sourcing Strategies In Regional Food Supply Networks: An Agent-Based Approach, Caroline C. Krejci, Michael C. Dorneich, Richard T. Stone

Industrial and Manufacturing Systems Engineering Publications

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. It 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 ...


Operator-Centered Task Analysis: A Hybrid Methodology For Human-Machine Interaction Observation In The Field, Chase Meusel, Norene Kelly, Stephen Gilbert, Michael Dorneich, Brian Gilmore, Bruce Newendorp Sep 2015

Operator-Centered Task Analysis: A Hybrid Methodology For Human-Machine Interaction Observation In The Field, Chase Meusel, Norene Kelly, Stephen Gilbert, Michael Dorneich, Brian Gilmore, Bruce Newendorp

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

The practice of human factors in agriculture presents numerous challenges for the researcher. Difficulties include measuring operator behaviors in the agricultural field as well as identifying individual tasks, order of tasks, length of tasks, and operator motivation for each task. To confidently build a baseline for how operators use and appropriate their resources during the planting agricultural season, a variety of qualitative and quantitative research methods were combined to create OCTA (operator-centered task analysis), a hybrid methodology to observe, document, explain, and potentially predict operator behaviors in the field. The OCTA model draws from four main methodologies: observation, interview, behavioral ...


Characteristics Of A Multi-User Tutoring Architecture, Stephen B. Gilbert, Eliot H. Winer, Joseph Holub, Trevor Richardson, Michael C. Dorneich, Michael Hoffman Jun 2015

Characteristics Of A Multi-User Tutoring Architecture, Stephen B. Gilbert, Eliot H. Winer, Joseph Holub, Trevor Richardson, Michael C. Dorneich, Michael Hoffman

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Intelligent tutor systems have been quite successful in instruction of individuals (Koedinger, Anderson, Hadley, & Mark, 1997; Ritter, Kulikowich, Lei, McGuire, & Morgan, 2007; Vanlehn, et al., 2005), but multiple challenges exist when attempting to tutor a team. Sottilare, Holden, Brawner, and Goldberg (2011) describe some of the architectural challenges of team tutoring at a high level in terms of functional requirements. In this paper we describe specific challenges in terms of implementing a team architecture within the Generalized Intelligent Framework for Tutoring (GIFT), including simultaneous startup and synchronization with distributed team members, maintaining state of multiple users, and timing feedback for teams and individuals appropriately.


Multi-Agent Simulation Modeling Of Supplier Selection For Local Food Systems, Hardik D. Bora, Caroline C. Krejci Jan 2015

Multi-Agent Simulation Modeling Of Supplier Selection For Local Food Systems, Hardik D. Bora, Caroline C. Krejci

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Consumer demand for regionally-produced food has increased dramatically in the past decade, in response to concerns over food safety and quality, as well as the serious environmental, economic, and social equity issues that pervade the modern industrial food supply system. As demand grows, distributors of regionally-produced food (i.e., food hubs) face many challenges in their efforts to scale up, particularly with supply chain management. They must find ways to operate more efficiently without undermining their support for the regional farming community. In this paper we describe a multi-agent simulation model of a theoretical regional food system in which multiple ...


The Development Of A Testbed To Assess An Intelligent Tutoring System For Teams, Desmond Bonner, Jamiahus Walton, Michael C. Dorneich, Stephen B. Gilbert, Robert A. Sottilare Jan 2015

The Development Of A Testbed To Assess An Intelligent Tutoring System For Teams, Desmond Bonner, Jamiahus Walton, Michael C. Dorneich, Stephen B. Gilbert, Robert A. Sottilare

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Work has been ongoing to develop an Intelligent Tutoring System (ITS) for teams. As part of this work, we are developing a flexible, scalable, military-based set of collaborative team tasks that can serve as a “testbed” to exercise various aspects of a team ITS architecture. Warfighting teams are a core part of any operation as individual soldiers combine their skill sets and plan, coordinate and act as one entity to accomplish assigned objectives. The team ITS test bed presented in this paper uses simple team tasks to train soldiers on basic functions including observation, target detection, target identification, communication within ...


Virtual Operator Modeling Approach For Construction Machinery, Yu Du, Michael C. Dorneich, Brian L. Steward, Eric R. Anderson, Lawrence F. Kane, Brian J. Gilmore Jan 2015

Virtual Operator Modeling Approach For Construction Machinery, Yu Du, Michael C. Dorneich, Brian L. Steward, Eric R. Anderson, Lawrence F. Kane, Brian J. Gilmore

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Greater understanding of how highly skilled operators achieve high machine performance and productivity can inform the development of automation technology for construction machinery. Current human operator models, however, have limited fidelity and may not be useful for machinery automation. In addition, while physical modeling and simulation is widely employed in product development, current operator simulation models may be a limiting factor in assessing the performance envelope of virtual prototypes. A virtual operator modelling approach for construction machinery was developed. Challenges to the development of human operator models include determining what cues and triggers human operators use, how human operators make ...


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 ...


Evaluating Distributed Teams With The Team Multiple Errands Test, Jamiahus Walton, Stephen B. Gilbert, Eliot Winer, Michael C. Dorneich, Desmond Bonner Jan 2015

Evaluating Distributed Teams With The Team Multiple Errands Test, Jamiahus Walton, Stephen B. Gilbert, Eliot Winer, Michael C. Dorneich, Desmond Bonner

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Modern day teams, whether in the military or civilian workplace, have the ability to achieve goals that are otherwise unobtainable by individuals. The timing and characteristics of feedback that teams receive during training are critical. Though there is a solid foundation of research on optimal feedback, there is limited exploration of what constitutes ideal team feedback including addressing the individual team member versus the whole team and whether that feedback is public (visible to the entire team) or private (visible only to one member of the team). Previous research that studied the effect of feedback on team performance has yielded ...


A Novel Framework For Visual Detection And Exploration Of Performance Bottlenecks In Organic Photovoltaic Solar Cell Materials, A. Aboulhassan, D. Baum, O. Wodo, Baskar Ganapathysubramanian, A. Amassian, M. Hadwiger Jan 2015

A Novel Framework For Visual Detection And Exploration Of Performance Bottlenecks In Organic Photovoltaic Solar Cell Materials, A. Aboulhassan, D. Baum, O. Wodo, Baskar Ganapathysubramanian, A. Amassian, M. Hadwiger

Mechanical Engineering Publications

Current characterization methods of the so-called Bulk Heterojunction (BHJ), which is the main material of Organic Photovoltaic (OPV) solar cells, are limited to the analysis of global fabrication parameters. This reduces the efficiency of the BHJ design process, since it misses critical information about the local performance bottlenecks in the morphology of the material. In this paper, we propose a novel framework that fills this gap through visual characterization and exploration of local structure-performance correlations. We also propose a formula that correlates the structural features with the performance bottlenecks. Since research into BHJ materials is highly multidisciplinary, our framework enables ...