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308 full-text articles. Page 1 of 13.

Designing The Teachactive Feedback Dashboard: A Human Centered Approach, Dana AlZoubi, Jameel Kelley, Evrim Baran, Stephen B. Gilbert, Shan Jiang, Aliye Karabulut 2021 Iowa State University

Designing The Teachactive Feedback Dashboard: A Human Centered Approach, Dana Alzoubi, Jameel Kelley, Evrim Baran, Stephen B. Gilbert, Shan Jiang, Aliye Karabulut

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Effective facilitation of active learning is key to enhancing student engagement in engineering classrooms. Instructors need opportunities for frequent observation, feedback, and reflection on the use of their active learning strategies, yet there are no validated automated approaches available. We address this need by designing a feedback dashboard, TEACHActive, that leverages classroom analytics from an automated sensing observation system. The TEACHActive dashboard provides feedback on the in-class implementation of various active learning strategies in engineering classrooms. In this poster, we present the initial phases of a human-centered dashboard design process. The human-centered design (HCD) approach includes techniques such as, creating ...


A Composite Framework Of Co-Located Asymmetric Virtual Reality, Kaitlyn M. Ouverson, Stephen B. Gilbert 2021 Iowa State University

A Composite Framework Of Co-Located Asymmetric Virtual Reality, Kaitlyn M. Ouverson, Stephen B. Gilbert

Industrial and Manufacturing Systems Engineering Publications

As the variety of possible interactions with virtual reality (VR) continues to expand, researchers need a way to relate these interactions to users' needs and goals in ways that advance understanding. Existing efforts have focused mainly on the symmetric use of technology, which excludes a rising form of interaction known as asymmetric VR, in which co-located participants use different interfaces to interact with a shared environment. There must be a clear path to creating asymmetric VR systems that are rooted in previous work from several fields, as these systems have use cases in education, hybrid reality teams (using VR and ...


Modeling Of Co Accumulation In The Headspace Of The Bioreactor During Organic Waste Composting, Karolina Sobieraj, Sylwia Stegenta-Dabrowska, Jacek A. Koziel, Andrzej Białowiec 2021 Wrocław University of Environmental and Life Sciences

Modeling Of Co Accumulation In The Headspace Of The Bioreactor During Organic Waste Composting, Karolina Sobieraj, Sylwia Stegenta-Dabrowska, Jacek A. Koziel, Andrzej Białowiec

Agricultural and Biosystems Engineering Publications

Advanced technologies call for composting indoors for minimized impact on the surrounding environment. However, enclosing compost piles inside halls may cause the accumulation of toxic pollutants, including carbon monoxide (CO). Thus, there is a need to assess the occupational risk to workers that can be exposed to CO concentrations > 300 ppm at the initial stage of the process. The objectives were to (1) develop a model of CO accumulation in the headspace of the bioreactor during organic waste composting and (2) assess the impact of headspace ventilation of enclosed compost. The maximum allowable CO level inside the bioreactor headspace for ...


Nondominant Hand Computer Mouse Training And The Bilateral Transfer Effect To The Dominant Hand, Drew Schweiger, Richard T. Stone, Ulrike Genschel 2021 Iowa State University

Nondominant Hand Computer Mouse Training And The Bilateral Transfer Effect To The Dominant Hand, Drew Schweiger, Richard T. Stone, Ulrike Genschel

Industrial and Manufacturing Systems Engineering Publications

This study explored the effects of training computer mouse use in the nondominant hand on clicking performance of the dominant and nondominant hands. Computer mouse use is a daily operation in the workplace and requires minute hand and wrist movements developed and refined through practice and training for many years. Our study had eleven right-handed computer mouse users train their nondominant hand for 15 min a day, five days per week, for six weeks. This study found improved performance with the computer mouse in the dominant hand following nondominant hand training because of the bilateral transfer effect of training. Additionally ...


Trunk Kinematic Variability As A Function Of Time During The Early Phase Of A Repetitive Lifting Task, Emmanuel Tetteh, Gary A. Mirka 2021 Iowa State University

Trunk Kinematic Variability As A Function Of Time During The Early Phase Of A Repetitive Lifting Task, Emmanuel Tetteh, Gary A. Mirka

Industrial and Manufacturing Systems Engineering Publications

Lift‐to‐lift variability occurs in repetitive lifting tasks due to alterations in the lifting techniques used by the lifter, resulting in variability in lower back tissue loading. Understanding how trunk variability changes with time in the initial phases of a lifting bout may provide insights into the risk of injury during work startup. The purpose of this study was to quantify the variation of lifting kinematics and kinetics during the initial phase of a lifting bout. Twenty participants performed a repetitive lifting task continuously for 30 min. The load was equivalent to 10% of each participant's body weight ...


Who Are Virtual Reality Headset Owners? A Survey And Comparison Of Headset Owners And Non-Owners, Jonathan W. Kelly, Lucia A. Cherep, Alex Lim, Taylor Doty, Stephen B. Gilbert 2021 Iowa State University

Who Are Virtual Reality Headset Owners? A Survey And Comparison Of Headset Owners And Non-Owners, Jonathan W. Kelly, Lucia A. Cherep, Alex Lim, Taylor Doty, Stephen B. Gilbert

Industrial and Manufacturing Systems Engineering Publications

The number of people who own a virtual reality (VR) head-mounted display (HMD) has reached a point where researchers can readily recruit HMD owners to participate remotely using their own equipment. However, HMD owners recruited online may differ from the university community members who typically participate in VR research. HMD owners (n=220) and non-owners (n=282) were recruited through two online work sites—Amazon’s Mechanical Turk and Prolific—and an undergraduate participant pool. Participants completed a survey in which they provided demographic information and completed measures of HMD use, video game use, spatial ability, and motion sickness susceptibility ...


The Effectiveness Of Locomotion Interfaces Depends On Self-Motion Cues, Environmental Cues, And The Individual, Jonathan W. Kelly, Stephen B. Gilbert 2021 Iowa State University

The Effectiveness Of Locomotion Interfaces Depends On Self-Motion Cues, Environmental Cues, And The Individual, Jonathan W. Kelly, Stephen B. Gilbert

Industrial and Manufacturing Systems Engineering Publications

The proliferation of locomotion interfaces for virtual reality necessitates a framework for predicting and evaluating navigational success. Spatial updating---the process of mentally updating one's self-location during locomotion---is a core component of navigation, is easy to measure, and is sensitive to common elements of locomotion interfaces. This paper highlights three factors that influence spatial updating: body-based self-motion cues, environmental cues, and characteristics of the individual. The concordance framework, which characterizes locomotion interfaces based on agreement between body movement and movement through the environment, serves as a useful starting point for understanding the effectiveness of locomotion interfaces for enabling accurate navigation.


The Effect Of Feedback Type On Perception Of Performance, Jamiahus Walton, Stephen B. Gilbert 2020 Clemson University

The Effect Of Feedback Type On Perception Of Performance, Jamiahus Walton, Stephen B. Gilbert

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

In an increasingly connected world, it’s essential to have efficient teams. Training is a common method used to maintain or improve team performance. However, implementing high quality team training can be costly and require a significant amount of time and effort. An Intelligent Tutoring System (ITS) designed for a team, or an Intelligent Team Tutoring System (ITTS), can provide a solution that would reduce the cost, time, and effort required to implement high quality training. Few studies have examined the influence that feedback delivered by an ITTS has on an individual’s perception of their performance and their team ...


Dynamic Escape Signs For Safe Egress In School Shooter Situation, Michael Poole, Stephen B. Gilbert 2020 Iowa State University

Dynamic Escape Signs For Safe Egress In School Shooter Situation, Michael Poole, Stephen B. Gilbert

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

School shooter situations can be a terrifying time for all involved. It is important that, if the situation occurs, there is a smart, efficient system in place to move each classroom to safety as quickly as possible. Methods like Run, Hide, Fight do not tell the civilians where to run, and messaging systems that attempt this are often thwarted by the shooter’s movement. A dynamic system is needed to track the shooter’s location and communicate to people how to best escape. Dynamic escape signs have been useful for improving trust and egress time during a fire. Similar smart ...


Creating Metrics For Human-Agent Teams, Elizabeth Cavanah, Zachery Ford, Angelica Jasper, Jacklin Stonewall, Stephen B. Gilbert, Michael C. Dorneich 2020 Iowa State University

Creating Metrics For Human-Agent Teams, Elizabeth Cavanah, Zachery Ford, Angelica Jasper, Jacklin Stonewall, Stephen B. Gilbert, Michael C. Dorneich

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

This paper describes the requirements and overall design of a testbed for a human-agent team. A robust, flexible testbed will enable researchers to evaluate the effectiveness of human-agent teaming concepts and issues. In the testbed, MazeWorld, multiple agents play different roles in which tasks are interdependent. Each role can be served by a human or an autonomous agent. Metrics were developed to capture individual and team effectiveness and allow researchers to compare different types of teams and teamwork protocols. Examples of the current task design are presented with the discussion of the future development of the system.


Do You Need To Travel? Mapping Face-To-Face Communication Objectives To Technology Affordances, Rachel E. Dianiska, Charles J. Peasley, Nicholas Wilson, Neil Barnett, Leilani Hammel, Ben Purdy, Peggy Wu, Elizabeth Shirtcliff, James H. Oliver, Stephen B. Gilbert 2020 Iowa State University

Do You Need To Travel? Mapping Face-To-Face Communication Objectives To Technology Affordances, Rachel E. Dianiska, Charles J. Peasley, Nicholas Wilson, Neil Barnett, Leilani Hammel, Ben Purdy, Peggy Wu, Elizabeth Shirtcliff, James H. Oliver, Stephen B. Gilbert

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Computer-mediated communications (CMC) can be used as a substitute for face-to-face (FtF) meetings but their effectiveness is highly context dependent. This paper describes a theoretical framework and initial experimental design for characterizing a travel replacement threshold. This effort begins with a use case of remote engineering maintenance training, conducted in three conditions: side-by-side (physically proximate), teleconference (using off-the-shelf software), and a custom VR/AR system designed to provide the apprentice with a virtual view of both the instructor’s larger scale lab and smaller scale workbench. The research hypotheses, experimental protocol, and dependent measures are described. The task involves an ...


Civilian Pepper Spray For Self Defense: Understanding User Perception And Impact Of Design On User Performance, David Strybel, Anil R. Kumar 2020 San Jose State University

Civilian Pepper Spray For Self Defense: Understanding User Perception And Impact Of Design On User Performance, David Strybel, Anil R. Kumar

Faculty Publications

Pepper spray is widely used in the US, and is marketed as an effective self-defense device. While pepper spray can be useful in deterring an attacker, many pepper spray owners do not have any experience using it. There is a dearth of published studies that focus on civilian pepper-spray use, not to mention first time pepper-spray users. A study to analyze pepper-spray designs with first-time users, to see how the design, specifically the safety mechanism, affects response time and overall performance would be helpful. The study was conducted in 2 parts – a survey to understand user perception, and a lab ...


Rotational Self-Motion Cues Improve Spatial Learning When Teleporting In Virtual Environments, Alex F. Lim, Jonathan W. Kelly, Nathan C. Sepich, Lucia A. Cherep, Grace C. Freed, Stephen B. Gilbert 2020 Iowa State University

Rotational Self-Motion Cues Improve Spatial Learning When Teleporting In Virtual Environments, Alex F. Lim, Jonathan W. Kelly, Nathan C. Sepich, Lucia A. Cherep, Grace C. Freed, Stephen B. Gilbert

Industrial and Manufacturing Systems Engineering Conference Proceedings and Posters

Teleporting interfaces are widely used in virtual reality applications to explore large virtual environments. When teleporting, the user indicates the intended location in the virtual environment and is instantly transported, typically without self-motion cues. This project explored the cost of teleporting on the acquisition of survey knowledge (i.e., a ”cognitive map”). Two teleporting interfaces were compared, one with and one without visual and body-based rotational self-motion cues. Both interfaces lacked translational self-motion cues. Participants used one of the two teleporting interfaces to find and study the locations of six objects scattered throughout a large virtual environment. After learning, participants ...


Spatial Cognitive Implications Of Teleporting Through Virtual Environments, Lucia A. Cherep, Alex F. Lim, Jonathan W. Kelly, Devi Acharya, Alfredo Velasco, Emanuel Bustamante, Alec G. Ostrander, Stephen B. Gilbert 2020 Iowa State University

Spatial Cognitive Implications Of Teleporting Through Virtual Environments, Lucia A. Cherep, Alex F. Lim, Jonathan W. Kelly, Devi Acharya, Alfredo Velasco, Emanuel Bustamante, Alec G. Ostrander, Stephen B. Gilbert

Industrial and Manufacturing Systems Engineering Publications

Teleporting is a popular interface to allow virtual reality users to explore environments that are larger than the available walking space. When teleporting, the user positions a marker in the virtual environment and is instantly transported without any self-motion cues. Five experiments were designed to evaluate the spatial cognitive consequences of teleporting and to identify environmental cues that could mitigate those costs. Participants performed a triangle completion task by traversing 2 outbound path legs before pointing to the unmarked path origin. Locomotion was accomplished via walking or 2 common implementations of the teleporting interface distinguished by the concordance between movement ...


Listening To The Voice Of The Customer Using An Immersive Combine Simulator: Innovative Techniques For Product Development, Don Kieu, Greg R. Luecke, Stephen Gilbert, Timothy Hunt, Brian Gilmore, Chase Meusel, Norene Kelly 2020 Iowa State University

Listening To The Voice Of The Customer Using An Immersive Combine Simulator: Innovative Techniques For Product Development, Don Kieu, Greg R. Luecke, Stephen Gilbert, Timothy Hunt, Brian Gilmore, Chase Meusel, Norene Kelly

Industrial and Manufacturing Systems Engineering Publications

This work describes a combine harvester simulator and virtual environment (VE). This interactive and realistic simulator is a novel and unique apparatus used for development and testing of human-machine systems during the design of agricultural vehicles and systems. The combine simulator and VE are being used to develop and evaluate new technologies and automated systems. The simulator provides an innovative testing platform in which to conduct active harvesting experiments that would otherwise be difficult or impossible to perform. The successes of two studies, 'auger spout aiming' and 'combine implement adjust' are described, including experimental results. The novel approach used with ...


Gender Differences And Cockpit Design, Susan Archer, Heidi Brewer, Stacie Fain, Stephanie Smith 2020 Embry-Riddle Aeronautical University

Gender Differences And Cockpit Design, Susan Archer, Heidi Brewer, Stacie Fain, Stephanie Smith

Student Works

The design project reported in this paper examined female pilots’ experiences with how well or poorly cockpit design allowed them to safely accomplish their flying missions. The general aviation aircraft cockpit is not designed for female pilots, often causing them to find ways to adapt to the cockpit in order to operate the aircraft safely. Two primary focal areas for adaptations address issues with accessibility of controls and “viewability” inside and outside the cockpit. The design team used a Situation Awareness-Oriented Interface Design (SAOD) approach in preparing cockpit design recommendations for general aviation aircraft that would accommodate female pilots.


How Does Robotic Surgery Influence Communication, Leadership, And Team Outcomes? A Multimethod Examination., Jordan E. Rogers 2020 Embry-Riddle Aeronautical University

How Does Robotic Surgery Influence Communication, Leadership, And Team Outcomes? A Multimethod Examination., Jordan E. Rogers

PhD Dissertations and Master's Theses

The practice of delivering surgical care has evolved to be less invasive to the patients undergoing surgery. Minimally-invasive surgery can be practiced through traditional laparoscopic methods as well as with robotic technology that displaces the surgeon from the operating table. Robotic surgery has been cited to be safer and more effective than traditional laparoscopic surgery; however, little research has endeavored to investigate the role of surgical modality upon aspects of teamwork. This dissertation contributes to the human factors and teamwork literature by evaluating how surgical modality may influence communication, shared leadership, and team outcomes. Multiple methods were employed to study ...


The Interaction Between Physical And Psychosocial Stressors, Esraa S. Abdelall, Zoe Eagle, Tor Finseth, Ahmad A. Mumani, Zhonglun Wang, Michael C. Dorneich, Richard T. Stone 2020 Iowa State University and Jordan University of Science and Technology

The Interaction Between Physical And Psychosocial Stressors, Esraa S. Abdelall, Zoe Eagle, Tor Finseth, Ahmad A. Mumani, Zhonglun Wang, Michael C. Dorneich, Richard T. Stone

Industrial and Manufacturing Systems Engineering Publications

Do physical and psychosocial stressors interact to increase stress in ways not explainable by the stressors alone? A preliminary study compared participants’ stress response while subjected to a physical stressor (reduced or full physical load) and a predetermined social stressor (confronted by calm or aggressive behavior). Salivary cortisol samples measured endocrine stress. Heart rate variability (HRV) and electrodermal activity (EDA) measured autonomic stress. Perceived stress was measured via discomfort and stress state surveys. Participants with a heavier load reported increased distress and discomfort. Encountering an aggressive individual increased endocrine stress, distress levels, and perceived discomfort. Higher autonomic stress and discomfort ...


Effects Of Design Autonomy On The Flow Experience, Antonio F Coriano 2020 University of Louisville

Effects Of Design Autonomy On The Flow Experience, Antonio F Coriano

Electronic Theses and Dissertations

Most modern workplace settings are laden with operating procedures aimed at standardizing action in the name of efficiency. The cost of this standardization is the autonomy of the operator. Mihaly Csikszentmihalyi stated the problem concisely in his 1975 work Beyond Boredom and Anxiety “… [M]ost of the institutions that take up our time…are organized around the assumption that serious work is grim and unpleasant. Because of this assumption, most of our time is spent doing unpleasant things”. An experiment was created to study and better understand how to redress this harmful situation. Sixteen subjects were given a SolidWorks computer-aided ...


Teleporting Through Virtual Environments: Effects Of Path Scale And Environment Scale On Spatial Updating, Jonathan W. Kelly, Alec G. Ostrander, Alex F. Lim, Lucia A. Cherep, Stephen B. Gilbert 2020 Iowa State University

Teleporting Through Virtual Environments: Effects Of Path Scale And Environment Scale On Spatial Updating, Jonathan W. Kelly, Alec G. Ostrander, Alex F. Lim, Lucia A. Cherep, Stephen B. Gilbert

Industrial and Manufacturing Systems Engineering Publications

Virtual reality systems typically allow users to physically walk and turn, but virtual environments (VEs) often exceed the available walking space. Teleporting has become a common user interface, whereby the user aims a laser pointer to indicate the desired location, and sometimes orientation, in the VE before being transported without self-motion cues. This study evaluated the influence of rotational self-motion cues on spatial updating performance when teleporting, and whether the importance of rotational cues varies across movement scale and environment scale. Participants performed a triangle completion task by teleporting along two outbound path legs before pointing to the unmarked path ...


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