Embodied Interaction With Visualization And Spatial Navigation In Time-Sensitive Scenarios,
2014
Purdue University
Embodied Interaction With Visualization And Spatial Navigation In Time-Sensitive Scenarios, Yu-Ting Li
Open Access Dissertations
Paraphrasing the theory of embodied cognition, all aspects of our cognition are determined primarily by the contextual information and the means of physical interaction with data and information. In hybrid human-machine systems involving complex decision making, continuously maintaining a high level of attention while employing a deep understanding concerning the task performed as well as its context are essential. Utilizing embodied interaction to interact with machines has the potential to promote thinking and learning according to the theory of embodied cognition proposed by Lakoff. Additionally, the hybrid human-machine system utilizing natural and intuitive communication channels (e.g., gestures, speech, and body …
Acquisition, Retention And Transfer Of Heavy Equipment Operator Skills Through Simulator Training,
2014
Purdue University
Acquisition, Retention And Transfer Of Heavy Equipment Operator Skills Through Simulator Training, Chung Yin So
Open Access Dissertations
Initiatives and collaborations among heavy construction equipment manufacturing companies and training technology firms to develop and employ simulators for varied training purposes are becoming commonplace. However, human factors research on simulator training for operators of construction equipment is still sparse. For simulator training to be effective, it is necessary to understand how skills are learned using the simulator, how those skills are transferred to other tasks, devices, and real scenarios, and how well skills are retained after simulator training. ^ This research is on skill development, specifically as it applies to operator training for two specific types of heavy construction …
Emergency Diesel-Electric Generator Set Maintenance And Test Periodicity,
2014
Old Dominion University
Emergency Diesel-Electric Generator Set Maintenance And Test Periodicity, Stephen John Fehr
Engineering Management & Systems Engineering Theses & Dissertations
Manufacturer and industry recommendations vary considerably for maintenance and tests of emergency diesel-electric generator sets supporting critical operations power systems facilities. There is little consistency among sets of similar technology, and manufacturers and their representatives often provide contradictory guidance. As a result, periodicity of emergency diesel-electric generator set maintenance and tests varies considerably in practice. This work proposes and tests a research and analysis framework to develop parametric regression survival models of modern diesel-electric generator sets in emergency standby duty as a function of maintenance periodicity, test periodicity, and other predictors. Within this framework, predictors are developed from common maintenance …
A Control-Chart Based Method For Solder Joint Crack Detection,
2014
California Polytechnic State University - San Luis Obispo
A Control-Chart Based Method For Solder Joint Crack Detection, Jianbiao Pan
Industrial and Manufacturing Engineering
Many researchers have used different failure criteria in published solder joint reliability studies. Since the reported timeto-failure would be different if different failure criteria were used, it would be difficult to compare the reported reliability life of solder joints from one study to another. The purpose of this study is to evaluate the effect of failure criteria on the reported thermal fatigue life and determine which failure criterion could detect failure sooner. First, the application of the control-chart-based method in a thermal cycling reliability study is described. The reported time-to-failure data were then compared based on four different failure criteria: …
Dynamic Surgical Tool Tracking And Delivery System Using Baxter Robot,
2014
Purdue University
Dynamic Surgical Tool Tracking And Delivery System Using Baxter Robot, Sthitapragyan Parida, Juan Pablo Wachs, Maria Eugenia Cabrera
The Summer Undergraduate Research Fellowship (SURF) Symposium
Several hospitals face nurse staffing shortages for surgeries. This research focuses on building a system with Baxter robot capable of identifying surgical tools using computer vision and delivering them to the surgeon on demand. This would deal with the issue of nurse unavailability during simple surgical procedures. The key aspects of the project were: testing the accuracies of various Artificial Neural Networks (ANNs) in classifying surgical instruments, and programming Baxter to implement a surgical tool delivery system using magnets at the tip of its 7-DOF robotic arms. The methodology consisted of, first, implementing algorithms to enable Baxter to do pick …
Local Buckling Behavior Of Round Steel Tubes Subjected To Compressive Loads,
2014
California State University - Sacramento
Local Buckling Behavior Of Round Steel Tubes Subjected To Compressive Loads, Joseph Moore, Ben Fell
STAR Program Research Presentations
This project will investigate the local buckling induced fracture behavior of round steel tubes subjected to axial compressive loads, representative of observed failures in buried pipelines during seismic events. Nine initial tests will be conducted across three lengths of round steel tube: 8”, 12”, and 20”. Another twelve tests will be conducted on the lengths of 12” and 20” to test varying initial compressive force upon the round steel tubes. Three D/t ratios will be considered for each length of round steel tube: 52.6, 78.9, and 121.2. To verify the material properties of the test specimens an ancillary tensile coupon …
Evaluating The Effectiveness Of The Global Nuclear Detection Architecture Using Multiple-Objective Decision Analysis,
2014
University of Arkansas, Fayetteville
Evaluating The Effectiveness Of The Global Nuclear Detection Architecture Using Multiple-Objective Decision Analysis, Holly Hilliard
Industrial Engineering Undergraduate Honors Theses
The National Academy of Sciences has recently completed a study of the Global Nuclear Detection Architecture (GNDA) Metrics for the Department of Homeland Security's Domestic Nuclear Detection Office. This research uses the reports strategic framework and notional metrics (and additional information) to develop one overall measure of GNDA effectiveness. The potential benefit of one effectiveness measure would be ability to assess and communicate progress over time to the diverse group of national and international stakeholders and decision makers. This thesis uses the mathematics of multiple objective decision analysis to develop the effectiveness measure. A notional model was developed and it …
Large-Scale Solution Approaches For Healthcare And Supply Chain Scheduling,
2014
University of Arkansas, Fayetteville
Large-Scale Solution Approaches For Healthcare And Supply Chain Scheduling, Ridvan Gedik
Graduate Theses and Dissertations
This research proposes novel solution techniques for two real world problems. We first consider a patient scheduling problem in a proton therapy facility with deterministic patient arrivals. In order to assess the impacts of several operational constraints, we propose single and multi-criteria linear programming models. In addition, we ensure that the strategic patient mix restrictions predetermined by the decision makers are also enforced within the planning horizon. We study the mathematical structures of the single criteria model with strict patient mix restrictions and derive analytical equations for the optimal solutions under several operational restrictions. These efforts lead to a set …
Disruption Response Support For Inland Waterway Transportation,
2014
University of Arkansas, Fayetteville
Disruption Response Support For Inland Waterway Transportation, Jingjing Tong
Graduate Theses and Dissertations
Motivated by the critical role of the inland waterways in the United States' transportation system, this dissertation research focuses on pre- and post- disruption response support when the inland waterway navigation system is disrupted by a natural or manmade event. Following a comprehensive literature review, four research contributions are achieved. The first research contribution formulates and solves a cargo prioritization and terminal allocation problem (CPTAP) that minimizes total value loss of the disrupted barge cargoes on the inland waterway transportation system. It is tailored for maritime transportation stakeholders whose disaster response plans seek to mitigate negative economic and societal impacts. …
Integrating Visual Mnemonics And Input Feedback With Passphrases To Improve The Usability And Security Of Digital Authentication,
2014
Clemson University
Integrating Visual Mnemonics And Input Feedback With Passphrases To Improve The Usability And Security Of Digital Authentication, Kevin Juang
All Dissertations
The need for both usable and secure authentication is more pronounced than ever before. Security researchers and professionals will need to have a deep understanding of human factors to address these issues. Due to their ubiquity, recoverability, and low barrier of entry, passwords remain the most common means of digital authentication. However, fundamental human nature dictates that it is exceedingly difficult for people to generate secure passwords on their own. System-generated random passwords can be secure but are often unusable, which is why most passwords are still created by humans. We developed a simple system for automatically generating mnemonic phrases …
Two-Stage Methodology For Managing And Controlling Material Flow Between Multiple Construction Projects,
2014
Clemson University
Two-Stage Methodology For Managing And Controlling Material Flow Between Multiple Construction Projects, Fatmah Almazkoor
All Dissertations
There is a strong connection between managing and controlling material flow in a supply chain and its performance. While this is true in all supply chains, it is particularly true in the construction supply chain (CSC) where the total demand for parts is finite, the storage space available can be small, and the variability in consumption is high. On the other hand, effectively controlling the CSC can have a significant impact on controlling risk and buffering their impact so that projects stay on schedule and within budget. Currently, a common control of the CSC is with a push-based material ordering …
The Impact Of Block Scheduling And Release Time On Operating Room Efficiency,
2014
Clemson University
The Impact Of Block Scheduling And Release Time On Operating Room Efficiency, Rebecca Weiss
All Theses
Planning for sufficient surgical capacity at a hospital requires that many tactical and operational decisions be made before the day of surgery. Typically, blocks of time in operating rooms (ORs) are assigned and specific surgical cases are placed in rooms. The hospital monitors utilization to determine the schedule's effectiveness in balancing the risk of overtime with idle time. In this thesis, we will examine how adjusting schedule risk ratios and penalty values, and providing shared, open posting time affected the hospital's ability to identify an efficient but high quality and low cost block schedule. The proposed schedules were tested by …
Investigating The Non-Adoption Of Electronic Health Records In Primary Care,
2014
Clemson University
Investigating The Non-Adoption Of Electronic Health Records In Primary Care, Saravanan Ramdoss
All Theses
The objective of this study was to investigate the underlying reasons behind primary care centers in the United States not implementing an Electronic Health Record system in spite of looming penalties under the Health Information Technology for Economic and Clinical Health (HITECH) Act. In order to do this, survey was developed and distributed among healthcare providers who have not yet implemented an EHR system at their practice. The questions for the survey were developed after conducting a literature review of the barriers to EHR implementation. In this review, six themes emerged: technical, cost, productivity, change process, privacy and time. These …
Pharmacists' And Patients' Perceptions Of Role Of Pharmacist In Discharge Process,
2014
Clemson University
Pharmacists' And Patients' Perceptions Of Role Of Pharmacist In Discharge Process, Ravi Teja Vempati
All Theses
The objective of this study was to identify the perceptions of both patients and pharmacists about the pharmacist's role in the hospital discharge process. In order to do this, observations were conducted with the patients and interviews were conducted with both patients and pharmacists. During the interviews, both the patients and pharmacists were asked about the pharmacist's role in the hospital discharge process. The interviews were qualitatively analyzed using the in vivo technique. Four high-level themes emerged from this study: Current role of a pharmacist in the hospital, Ideal role of a pharmacist in the discharge process, Pharmacists' perceptions of …
Multistage Accelerated Reliability Growth Testing Model And Data Analysis,
2014
University of Arkansas, Fayetteville
Multistage Accelerated Reliability Growth Testing Model And Data Analysis, Leiying Jiang
Graduate Theses and Dissertations
Accelerated reliability growth testing has recently received a renewed interest in reliability engineering. The concepts of accelerated testing and reliability growth individually have been used in a variety of applications, either for hardware systems or software systems. The advantage of using a combined strategy is that it could shorten the testing time while maximizing the reliability. In the literature, there are many references related to optimal test design for reliability from either a component level or a system level. In this research, we suggest an approach which conducts accelerated testing at the component level while supporting estimates of reliability at …
Design Of A Sign-Out Process To Improve Surgical Safety,
2014
Clemson University
Design Of A Sign-Out Process To Improve Surgical Safety, Sumonthip Chompoodang Gmitro
All Theses
According to the World Health Organization (WHO), the surgical safety checklist consists of three parts; sign-in, time-out and sign-out. It has been observed that the sign-out process is the least frequently completed. In this study, because of a concern for the risk of adverse events occurring in the OR, the sign-out process used in a local hospital was redesigned as a web-based application embedded on a desktop computer and on a mobile device. Both web-based platforms were tested along with the current sign-out process on a computer. Eighteen circulating nurses in the operating rooms of Greenville Memorial Hospital used each …
A New Integrated Design Framework For The Facility Layout Problem,
2014
Purdue University
A New Integrated Design Framework For The Facility Layout Problem, Kyle F. Thomas
Open Access Theses
This thesis proposes a new integrated design framework for solving facility layout problems (FLP). The most popular existing framework, Muther's Systematic Layout Planning (SLP) does not address the variety of design goals associated with facility layout problems and is highly manual and so time consuming to perform. Furthermore, the SLP framework does not help the designer select a modeling tool to use in developing design alternatives, either by defining what a requisite model would include, or explicitly suggesting ones from literature. With the advancements made in academic research and computational capabilities since the development of the SLP framework, a new …
Influence Of Referential Coding In A Choice Task Performed In A Simulated Driving Cockpit,
2014
Purdue University
Influence Of Referential Coding In A Choice Task Performed In A Simulated Driving Cockpit, Aiping Xiong
Open Access Theses
Driving and other tasks performed by the driver of a vehicle are spatial. Thus, it is important to understand how the driver represents the spatial environment. In laboratory studies, the Simon task is used to study spatial coding. Participants are to make a left or right response to a nonspatial stimulus feature, but the stimulus can occur in a left or right position. The Simon effect is that responses are faster when the stimulus location corresponds with the response location. That effect is not usually found for a go/no-go task in which only one response is made to one of …
Solvent System Selection For Xylooligosaccharides Separation By Centrifugal Partition Chromatography Using Conductor-Like Screening Model For Real Solvents,
2014
Purdue University
Solvent System Selection For Xylooligosaccharides Separation By Centrifugal Partition Chromatography Using Conductor-Like Screening Model For Real Solvents, He Zhang
Open Access Theses
The production of value-added, bio-based industrial commodity chemicals is an important area in science right now and this study provides an initial step in the recovery of bio-based chemicals from hemicellulose. Hemicellulose is a long chain polymer mostly consisting of xylose, which is a five-carbon sugar, and a variety of other compounds that are ubiquitous in plant life. The hemicellulose polymer chain can be depolymerized into smaller components, called xylooligosaccharides (XOS) with different chain lengths of xylose linked by beta-1-4 glycosidic bonds, using either hot water, or dilute sulfuric acid. The xylooligosaccharides can then be purified from one another from …
Multimodal Perception Of Histological Images For Persons Blind Or Visually Impaired,
2014
Purdue University
Multimodal Perception Of Histological Images For Persons Blind Or Visually Impaired, Ting Zhang
Open Access Theses
Currently there is no suitable substitute technology to enable blind or visually impaired (BVI) people to interpret visual scientific data commonly generated during lab experimentation in real time, such as performing light microscopy, spectrometry, and observing chemical reactions. This reliance upon visual interpretation of scientific data certainly impedes students and scientists that are BVI from advancing in careers in medicine, biology, chemistry, and other scientific fields. To address this challenge, a real-time multimodal image perception system is developed to transform standard laboratory blood smear images for persons with BVI to perceive, employing a combination of auditory, haptic, and vibrotactile feedbacks. …
