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Articles 151 - 180 of 764
Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
Evaluation Of Periodontal Scaling Task And Development Of Force–Endurance Models For Simulated Scaling Task, Vettrivel Gnaneswaran
Evaluation Of Periodontal Scaling Task And Development Of Force–Endurance Models For Simulated Scaling Task, Vettrivel Gnaneswaran
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
Force exertion is critical in grasping and holding activities at sub-maximal levels. Exertion misjudgments lead to musculoskeletal disorders (MSDs) impairing performance and productivity. Published literatures on grasping have addressed the force balance and endurance issues for non-prehensile movements of hand. However, little information is available on the force exerted in precision gripping employed in health care. Professionals, especially dental hygienists, when treating patients adopt awkward postures for extended period leading to cumulative trauma. Literatures on cumulative trauma have identified force exertion to be an important risk factor. Lack of information on fatigue with precision gripping motivated this research to establish …
Information Quality On The World Wide Web: A User Perspective, Jaikrit Kandari
Information Quality On The World Wide Web: A User Perspective, Jaikrit Kandari
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
Information Quality has emerged as an important measure for the success of Information Systems. At the same time the World Wide Web has established itself as the key infrastructure for information administration, exchange, and publication. Users are getting information from the web at the click of a button however they must filter sub-standard information before they can use quality content. Researchers have aimed to address this problem by suggesting various information quality frameworks. Research till date has seen twenty important Information Quality (IQ) frameworks emerge. These models though varied in their approach and application share a number of characteristics regarding …
Estimation Of Mechanical Properties Of Soft Tissue Subjected To Dynamic Impact, Mohamed R. S. Amar
Estimation Of Mechanical Properties Of Soft Tissue Subjected To Dynamic Impact, Mohamed R. S. Amar
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
This study attempted to estimate the damping properties of human tissue by using spring and damper system as a model. Data of impacting human tissue at the deltoid area was used to obtain a continuous, second order system to represent the mass-spring-damper system. A discrete ARMA(2,1) model was fitted using the data obtained from experiments in which the deceleration of a pendulum impacting human shoulders in the area of the deltoid muscle was measured. The data of the deceleration was integrated twice to obtain estimates of displacement. The integration was done until the maximum displacement occurred at zero velocity.
An …
Using A Quality Based Analytic Hierarchy Process To Do Decision-Making Analysis In Transportation, Dejing Kong
Using A Quality Based Analytic Hierarchy Process To Do Decision-Making Analysis In Transportation, Dejing Kong
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
The automated identification technology, Radio Frequency Identification (RFID), provides the potential to reduce costs in the transportation operations. Local Department of Transportation (DOT) offices have to carefully consider technologies such as RFID when considering their use for operation such as Right of Way (ROW) property control. ROW operations require strategic planning in that inventory and access rights can be contestable in a myriad of situations. This research investigates the comprehensive impacts of using RFID systems for ROW inventory tracking. We utilize the House of Quality as a means to integrating strategic shareholders needs and their impact on the measurement of …
Acuta Enews November 2010, Vol 39, No. 11
Acuta Enews November 2010, Vol 39, No. 11
ACUTA Newsletters
ln This lssue
From ACUTA Headquarters: Relief from Cell Phone Regulations ......Jeri A. Semer, CAE, Executive Dir.
Security ls Not a Game......... Curt Harler
Nominate for ACUTA Board of Directors
Tech Talk: Cyber Security and Collateral Damage........ Kevin Tanzillo, Dux PR
Kansas Universities Get $1.176M Grant from the NSF to Enhance Cyber lnfrastructure
Deadline ls Nov.5 for lnstitutional Excellence Award Nominations
Campus Televideo Releases 2010 Bandwidth and lT Report
PAETEC Provides Catting Service
Learn More about Network Management and Financial lssues without Leaving Your Office
Thanks to Exhibitors and Sponsors at Fall Seminar
Washington Update Newsletter
There ls Still SPIT....................Gary …
Comparison Of Classical Analytic Hierarchy Process (Ahp) Approach And Fuzzy Ahp Approach In Multiple-Criteria Decision Making For Commercial Vehicle Information Systems And Networks (Cvisn) Project, Liyuan Zhang
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
Radio Frequency Identification (RFID) has emerged as an important technology with many possible applications in a wide variety of fields. It is said that RFID can perform well in transportation system. Nebraska Department of Motor Vehicles (NEDMV) is using this technique to perform an analysis on utilizing RFID license plates to assist with Commercial Vehicle Information Systems and Networks (CVISN) program with the cooperation of many other stakeholders. Previous House of Quality (HOQ) analysis evaluates stakeholders’ needs and provides the pairwise comparison values of six important technical requirements for each stakeholder. Based on these, this research aims to seek for …
Acuta Enews October 2010, Vol 39, No. 10
Acuta Enews October 2010, Vol 39, No. 10
ACUTA Newsletters
In This Issue
Nominate Now for 2011-2012 Board of Directors
From the President........... Matt Arthur, Washington Univ. in St. Louis, ACUTA President
Nominate Now for ACUTA Institutional Excellence Award
Tech Talk: The Land of Lync'in............... Kevin Tanzillo, Dux PR
That Smarts!
FYI: Useful Information from the Campus......... Student Monitor
ACUTA Surveys Voice and Emergency Systems........... Ray Horak, The Context Corporation
Learn More about UC, WiFi, FMC, Green IT and More from Your Desktop
Visit the ACUTA Community Often!
Board Report........... George Denbow, Univ. of Texas, ACUTA Secretary/Treasurer
Washington Update Newsletter
Overheard on the Listserv: It's All about Access
In Memory: …
Acuta Enews September 2010, Vol 39, No. 9
Acuta Enews September 2010, Vol 39, No. 9
ACUTA Newsletters
ln This lssue
Survey Paints a Picture of Technology on Campus
From ACUTA Headquarters: Net Neutrality Heats Up........... Jeri A. Semer, CAE, Executive Dir.
Tech Talk: Let There Be Light......... Kevin Tanzillo, Dux PR
Nominations Open for 2011 ACUTA Institutional Excellence Awards
FYI: Useful Information from the Campus.......... Courtesy of Eric Weil, Student Monitor
Webinar: Overcoming Implementation Challenges with DAS at TAMU
Here's How We Collaborate
Learn More about WiFi, FMC, Green IT, and More from Your Desktop
Info Links......... Randy Hayes, Univ. of Northern Iowa
In Memory
"What Ifs..."........... Gary Audin, Delphi, Inc.
Thanks to Exhibitors and Sponsors at …
Acuta Enews August 2010, Vol 39, No. 8
Acuta Enews August 2010, Vol 39, No. 8
ACUTA Newsletters
ln This lssue
From the President........ Matt Arthur, Washington Univ. in St. Louis, ACUTA President
Web Seminar: The Future of United Communications
PAETEC Provides Calling Service
Tech Talk: Thinking Holistically about Mobility........ Kevin Tanzillo, Dux PR
Add Names from Your Campus to Your ACUTA Roster
Learn More about UC, WiFi, FMC, Green IT and More from Your Desktop
FYI: Useful Information from the Campus........... Student Monitor
Designing a DAS.............. Ron Walczak, Walczak Technology Consultants
Visit the ACUTA Community Often!
Board Report............... George Denbow, Univ. of Texas, ACUTA Secretary/ Treasurer
Info Links................... Randy Hayes, Univ. of Northern Iowa
Washington Update Newsletter …
Investigation Into Current Efficiency For Pulse Electrochemical Machining Of Nickel Alloy, Yu Zhang
Investigation Into Current Efficiency For Pulse Electrochemical Machining Of Nickel Alloy, Yu Zhang
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
INVESTIGATION INTO CURRENT EFFICIENCY FOR PULSE ELECTROCHEMICAL MACHINING OF NICKEL ALLOY
Yu Zhang, M.S.
University of Nebraska, 2010
Adviser: Kamlakar P. Rajurkar
Electrochemical machining (ECM) is a nontraditional manufacturing process that can machine difficult-to-cut materials. In ECM, material is removed by controlled electrochemical dissolution of an anodic workpiece in an electrochemical cell. ECM has extensive applications in automotive, petroleum, aerospace, textile, medical, and electronics industries.
Improving current efficiency is a challenging task for any electro-physical or electrochemical machining processes. The current efficiency is defined as the ratio of the observed amount of metal dissolved to the theoretical amount predicted from …
Preparation Of Coated Microtools For Electrochemical Machining Applications, Ajaya K. Swain
Preparation Of Coated Microtools For Electrochemical Machining Applications, Ajaya K. Swain
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
PREPARATION OF COATED MICROTOOLS FOR ELECTROCHEMICAL MACHINING APPLICATIONS
Ajaya K. Swain, M.S. University of Nebraska, 2010
Advisor: K.P. Rajurkar
Coated tools have improved the performance of both traditional and nontraditional machining processes and have resulted in higher material removal, better surface finish, and increased wear resistance. However, a study on the performance of coated tools in micromachining has not yet been adequately conducted. One possible reason is the difficulties associated with the preparation of coated microtools. Besides the technical requirement, economic and environmental aspects of the material and the coating technique used also play a significant role in coating microtools. …
A Methodology To Evaluate Obsolete Inventory In Health Care, Rama Thummalapalli
A Methodology To Evaluate Obsolete Inventory In Health Care, Rama Thummalapalli
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
Many organizations are currently facing inventory management problems such as distributing inventory on-time and maintain the correct inventory levels to satisfy the customer or end users. Organizations understand the need for maintaining the accurate inventory levels but sometimes fall short leading a wide performance gap in maintaining inventory accurately. The inventory inaccuracy can consume much of the investment on purchasing inventory and many times leads to excessive inventory. The research objective of thesis is to provide a decision making criteria to the management for closing or maintaining the warehouse based on basic purchasing and holding cost information. The specific objectives …
Acuta Enews July 2010, Vol 39, No. 7
Acuta Enews July 2010, Vol 39, No. 7
ACUTA Newsletters
ln This lssue
From ACUTA Headquarters: FCC: Traveling with Wireless Phones .....Jeri A. Semer, CAE, Executive Dir.
Why Should You Visit the ACUTA Community Often?
Tech Talk: The lnternet Just Keeps on Growing ....Kevin Tanzillo, Dux PR
Hurricane Preparedness Checklist
Cloud Security, Some Guidance...........Gary Audin, Delphi, lnc.
lnfo Links ............. Randy Hayes, Univ. of Northern lowa
Write for the ACUTA Journal in 2011
Second-Notice Membership Dues Mailed July 1
Washington Update Newsletter
Board Report......... George Denbow, Univ. of Texas, Austin
New Members
Check lt Out: Press Releases...Job Postings...RFls/RFPs...Special Deals
Acuta Enews June 2010, Vol 39, No. 6
Acuta Enews June 2010, Vol 39, No. 6
ACUTA Newsletters
In this Issue
Extremely Strong Program Planned for San Francisco Seminar
From the President..........Matt Arthur, Washington Univ. in St. Louis, ACUTA President
Can Wireless Replace the RSTN?.... Gary Audin, Delphi, lnc.
Add Names from Your Campus to Your ACUTA Roster
Multi-Event Discount: Attend More in 2010 and Save More!
ACUTA Resources Are Better than Ever
Hurricane Preparedness Checklist
FYI: Useful lnformation from the Campus...................Student Monitor
Board Report............ George Denbow, Univ. of Texas, ACUTA Secretary/Treasurer
lnfo Links .......... Randy Hoyes, Univ of Northern lowa
Washington Update Newsletter
Welcome New Members
Check lt Out: Press Releases...Job Postings...RFls/RFPs...Special Deals
Multi-Robot System Control Architecture (Mrsca) For Agricultural Production, Santosh Pitla, Joe D. Luck, Scott A. Shearer
Multi-Robot System Control Architecture (Mrsca) For Agricultural Production, Santosh Pitla, Joe D. Luck, Scott A. Shearer
Department of Agricultural and Biological Systems Engineering: Presentations and White Papers
Coordinating multiple autonomous robots for achieving an assigned collective task presents a complex engineering challenge. In this paper multi robot system control architecture (MRSCA) for the coordination of multiple agricultural robots is developed. The two important aspects of MRSCA; coordination strategy and inter-robot communication were discussed with typical agricultural tasks as examples. Classification of MRS into homogeneous and heterogeneous robots was done to identify appropriate form of cooperative behavior and inter-robot communication. The framework developed, proposes that inter-robot communication is not always required for a MRS. Three types of cooperative behaviors; No-cooperation, modest cooperation and absolute cooperation for a MRS …
Pneumatic Control Of A Variable Orifice Nozzle, Joe D. Luck, Michael P. Sama, Santosh Pitla, Scott A. Shearer
Pneumatic Control Of A Variable Orifice Nozzle, Joe D. Luck, Michael P. Sama, Santosh Pitla, Scott A. Shearer
Department of Agricultural and Biological Systems Engineering: Presentations and White Papers
A variable-orifice nozzle with droplet optimization was recently developed and introduced for use on agricultural sprayers. The VariTarget (VT) nozzle reacts to changes in the system flow rate via a metering assembly that is controlled by a diaphragm and spring. As the liquid pressure changes, the VT metering assembly attempts to control the flow rate and spray pattern exiting the nozzle. The goal of this study was to replace the spring controlled “reactive” system with a pneumatically controlled metering assembly. The proposed system would allow for the metering assembly to adjust the flow rate and spray pattern exiting the nozzle …
Acuta Enews May 2010, Vol 39, No. 5
Acuta Enews May 2010, Vol 39, No. 5
ACUTA Newsletters
ln This lssue
Report from Annual Conference in San Antonio
From ACUTA Headquarters: Expanded ACUTA Benefits Jeri A. Semer, CAE, Executive Dir.
Hurricane Preparedness Checklist
Tech Talk: A Different Way of Measuring Value of Unified Communications....... Kevin Tonzillo, Dux PR
See the Conference on Your Desktop
DC Update ................Dove Ostrom, Washington State Univ. (retired)
ACUTA Alert: Write Your Senators to Urge Passage of IRS/Cell Phone Legislation
Dues lnvoices Mailed May 1
Washington Update Newsletter
lnfo Links ............ Randy Hayes, Univ. of Northern lowa
Another Great Conference, More Terrific Prizes!
Board Report ......... George Denbow, Univ. of Texas, Austin
New Members …
The Use Of Factor Analysis In The Development Of Hand Sizes For Glove Design, Trevor M. Mclain
The Use Of Factor Analysis In The Development Of Hand Sizes For Glove Design, Trevor M. Mclain
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
Factor analysis was used to develop a more detailed description of the human hand to be used in the creation of glove sizes; currently gloves sizes are small, medium, and large. The created glove sizes provide glove designers with the ability to create a glove design that can provide fit to the majority of hand variations in both the male and female populations. The research used the American National Survey (ANSUR) data that was collected in 1988. This data contains eighty-six length, width, height, and circumference measurements of the human hand for one thousand male subjects and thirteen hundred female …
Adaptive Cutting Force Control For Process Stability Of Micro Ultrasonic Machining, Ala'a M. Al-Okaily
Adaptive Cutting Force Control For Process Stability Of Micro Ultrasonic Machining, Ala'a M. Al-Okaily
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
The growing demand for miniaturized products motivates the advancement in micromanufacturing processes research and development. Micro Ultrasonic Machining (Micro USM) is a downscaled version of a macro USM process that is developed to fabricate complex features in chemically inert, nonconductive, hard, brittle materials such as quartz, glass, and ceramics. These materials have many applications in various fields such as optics, electronics, MEMS, and biotechnology. The micro USM process stability is hard to accomplish, because it is highly influenced by the accuracy of the machining system and the variation of the process control parameters. The repeatability of micro USM machined features …
Study Of Micro Rotary Ultrasonic Machining, Aarati Sarwade
Study Of Micro Rotary Ultrasonic Machining, Aarati Sarwade
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
Product miniaturization for applications in fields such as biotechnology, medical devices, aerospace, optics and communications has made the advancement of micromachining techniques essential. Machining of hard and brittle materials such as ceramics, glass and silicon is a formidable task. Rotary ultrasonic machining (RUM) is capable of machining these materials. RUM is a hybrid machining process which combines the mechanism of material removal of conventional grinding and ultrasonic machining. Downscaling of RUM for micro scale machining is essential to generate miniature features or parts from hard and brittle materials.
The goal of this thesis is to conduct a feasibility study and …
Evaluation Method For Strategic Investments, Olabode Alabi
Evaluation Method For Strategic Investments, Olabode Alabi
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
Real Options Analysis (ROA) has become a complimentary tool for engineering economics. It has become popular due to the limitations of conventional engineering valuation methods; specifically, the assumptions of uncertainty. Industry is seeking to quantify the value of engineering investments with uncertainty. One problem with conventional tools are that they may assume that cash flows are certain, therefore minimizing the possibility of the uncertainty of future values. Real options analysis provides a solution to this problem, but has been used sparingly by practitioners. This paper seeks to provide a new model, referred to as the Beta Distribution Real Options Pricing …
Maintenance Optimization For Substations With Aging Equipment, Haifeng Ge
Maintenance Optimization For Substations With Aging Equipment, Haifeng Ge
Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research
Today’s electric utilities are confronted with a myriad of challenges that include aging infrastructure, enhanced expectation of reliability, reduced cost, and coping effectively with uncertainties and changing regulation requirements. Utilities rely on Asset Management programs to manage inspections and maintenance activities in order to control equipment conditions. However, development of strategies to make sound decisions in order to effectively improve equipment and system reliability while meeting constraints such as a maintenance budget is a challenge.
The primary objective of this dissertation is to develop models and algorithms to study the impact of maintenance toward equipment/system reliability and economic cost, and …
Acuta Enews April 2010, Vol 39, No. 4
Acuta Enews April 2010, Vol 39, No. 4
ACUTA Newsletters
ln This lssue
From the President.. ...,Harvey "Buck" Buchanan, Florida State Univ., ACUTA President
Board Report...........,.. George Denbow, Univ of Texas, ACUTA Secretary/Treasurer
Tech Talk Riding the Hype Cycle ...Kevin Tanzillo, Dux PR
Washington Update Newsletter
DC Update Dave Ostrom, Washington State Univ (retired)
Magnussen Named to Pandemic Planning Working Group
Congratulations to Sharon Stille and Mark Watters
Add Names from Your Campus to Your ACUTA Roster
Member Anniversaries
Multi-Event Discount: Attend More in 2010 and Save More!
Welcome New Members
Check lt Out: Press Releases...Job Postings...RFls/RFPs...Special Deals
Acuta Enews March 2010, Vol 39, No. 3
Acuta Enews March 2010, Vol 39, No. 3
ACUTA Newsletters
ln This lssue
Board of Directors for 2010-2011
From ACUTA Headquarters: Broadband Grants Announced..........Jeri A. Semer, CAE, Executive Dir.
Mark Watters, Ball State University, Wins ACUTA Conference Package
Message from ACUTA Young Professionals Subcommittee ......... Jana McDonald, Texas A&M University
Be a Moderator or Monitor at the Annual Conference
Mutli-Event Discount: Attend More in 2010 and Save More!
Tech Talk: Meeting the Challenge of Measuring UC's Benefits...... Kevin Tanzillo, Dux PR
Washington Update Newsletter
DC Update ..............Dave Ostrom, Washington State Univ. (retired)
Pennsylvania Coalition Awarded $99.6 Million NTIA Grant
ln Memory: Denny Grandowicz
lnfo links............. Randy Hayes, Univ. of Northern …
Acuta Enews February 2010, Vol 39, No. 2
Acuta Enews February 2010, Vol 39, No. 2
ACUTA Newsletters
In This Issue
From the President.......... Harvey "Buck" Buchanan, Florida State Univ. ACUTA President
Tech Talk: MANET: Not the Art, but the Science......... Kevin Tanzill, Dux PR
Cast Your Vote for ACUTA Board
DC Update........... Dave Ostrom, Washington State Univ. (retired)
Overheard on the Listserv: Handling Large Volumes of Incoming Calls
Washington Update Newsletter
Your State/Province Could Be #1
A Rank Amateur's Guide to Twitter........... Daphne Gray-Grant
Thanks to Sponsors for 2009
Multi-Event Discount: Attend More in 2010 and Save More!
Bring Winter Seminar to Your Desktop
Board Report............ George Denbow, Univ. of Texas, ACUTA Secretary/ Treasurer
Info Links........... Randy …
Peer Review Of Teaching Project - Castl: Expanding The Sotl Commons Cluster Final Report, Jennifer Meta Robinson, Paul Savory, Gary Poole, Tom Carey, Dan Bernstein
Peer Review Of Teaching Project - Castl: Expanding The Sotl Commons Cluster Final Report, Jennifer Meta Robinson, Paul Savory, Gary Poole, Tom Carey, Dan Bernstein
Department of Industrial and Management Systems Engineering: Reports
In 2006, the Peer Review of Teaching Project at the University of Nebraska-Lincoln was selected to join the Carnegie Academy for the Scholarship of Teaching and Learning (CASTL) Institutional Leadership Program. Our participation in this national leadership program (“Expanding the Teaching Commons: A social and technical infrastructure to promote and support effective learning & student success, through teacher community collaborations to develop, adapt, share and mobilize pedagogical content knowledge, exemplary practices, and shared resources.”) allowed us to engage a broad audience to help define, develop, refine, and share the models and approaches of our project. The combined group effort for …
Acuta Enews January 2010, Vol 39, No. 1
Acuta Enews January 2010, Vol 39, No. 1
ACUTA Newsletters
In this Issue
From ACUTA Headquarters: Seizing Opportunity in a New Decade.... Jeri A. Semer, CAE, Executive Dir.
Where Were You in 2000? Where Will You Be in 2020?
Tech Talk: When Reality Isn't Good Enough, Augment It.......... Kevin, Tanzillo, Dux PR
Multi-Event Discount: Attend More in 2010 and Save More!
DC Update............. Dave Ostron, Washington State Univ. (retired)
Come to New Orleans- Or Bring New Orleans to Your Office
Nominate Now for ACUTA Ruth A Mickalecki Leadership Award
Be a Moderator or Monitor at the Annual Conference
Board Report.......... Jeri A. Semer, CAE, Executive Director
Info Links............. Randy Hayes, …
Air-Exposed Microbial Fuel Cells And Screening Techniques, Justin C. Biffinger, Bradley R. Ringeisen
Air-Exposed Microbial Fuel Cells And Screening Techniques, Justin C. Biffinger, Bradley R. Ringeisen
United States Navy: Publications
Microbial fuel cells (MFCs) harvest energy from a wide variety of natural carbon sources to produce electricity at neutral pH and ambient temperatures. To date, standard H2/O2 PEMFC technology has yet to generate significant power under those conditions. Because most environments on earth are exposed to significant levels of oxygen, we believe the transition from sediment based MFCs to oxygen-tolerant MFCs is necessary. This transition would require both a way to simultaneously sequester the metal-reducing microbes and reduce the overall concentration of oxygen in the anode chamber. Recent work suggests that power can be generated with significant …
Probing Electron Transfer Mechanisms In Shewanella Oneidensis Mr-1 Using A Nanoelectrode Platform And Single-Cell Imaging, Ziaocheng Jiang, Jinsong Hu, Lisa A. Fitzgerald, Justin C. Biffinger, Ping Xie, Bradley R. Ringeisen, Charles M. Lieber
Probing Electron Transfer Mechanisms In Shewanella Oneidensis Mr-1 Using A Nanoelectrode Platform And Single-Cell Imaging, Ziaocheng Jiang, Jinsong Hu, Lisa A. Fitzgerald, Justin C. Biffinger, Ping Xie, Bradley R. Ringeisen, Charles M. Lieber
United States Navy: Publications
Microbial fuel cells (MFCs) represent a promising approach for sustainable energy production as they generate electricity directly from metabolism of organic substrates without the need for catalysts. However, the mechanisms of electron transfer between microbes and electrodes, which could ultimately limit power extraction, remain controversial. Here we demonstrate optically transparent nanoelectrodes as a platform to investigate extracellular electron transfer in Shewanella oneidensis MR-1, where an array of nanoholes precludes or single window allows for direct microbeelectrode contacts. Following addition of cells, short-circuit current measurements showed similar amplitude and temporal response for both electrode configurations, while in situ optical imaging demonstrates …
The Role Of Shewanella Oneidensis Mr-1 Outer Surface Structures In Extracellular Electron Transfer, Rachida A. Bouhenni, Gary J. Vora, Justin C. Biffinger, Sheetal Shirodkar, Ken Brockman, Ricky Ray, Peter Wu, Brandy J. Johnson, Eulandria M. Biddle, Matthew J. Marshall, Lisa A. Fitzgerald, Brenda J. Little, Jim K. Fredrickson, Alexander S. Beliaev, Bradley R. Ringeisen, Daad A. Saffarini
The Role Of Shewanella Oneidensis Mr-1 Outer Surface Structures In Extracellular Electron Transfer, Rachida A. Bouhenni, Gary J. Vora, Justin C. Biffinger, Sheetal Shirodkar, Ken Brockman, Ricky Ray, Peter Wu, Brandy J. Johnson, Eulandria M. Biddle, Matthew J. Marshall, Lisa A. Fitzgerald, Brenda J. Little, Jim K. Fredrickson, Alexander S. Beliaev, Bradley R. Ringeisen, Daad A. Saffarini
United States Navy: Publications
The ability of the metal reducer Shewanella oneidensis MR-1 to generate electricity in microbial fuel cells (MFCs) depends on the activity of a predicted type IV prepilin peptidase; PilD. Analysis of an S. oneidensis MR-1 pilD mutant indicated that it was deficient in pili production (Msh and type IV) and type II secretion (T2S). The requirement for T2S in metal reduction has been previously identified, but the role of pili remains largely unexplored. To define the role of type IV or Msh pili in electron transfer, mutants that lack one or both pilus biogenesis systems were generated and analyzed; …