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Operations Research, Systems Engineering and Industrial Engineering Commons

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Articles 1 - 9 of 9

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

Investigation Of Electrical Transport In Hydrogenated Multiwalled Carbon Nanotubes, Adam Friedman, Hyunkyung Chun, Don Heiman, Yung Jung, Latika Menon Jun 2011

Investigation Of Electrical Transport In Hydrogenated Multiwalled Carbon Nanotubes, Adam Friedman, Hyunkyung Chun, Don Heiman, Yung Jung, Latika Menon

Latika Menon

Highly disordered multiwalled carbon nanotubes of large outer diameter (~60 nm) fabricated by means of chemical vapor deposition process inside porous alumina templates exhibit ferromagnetism when annealed in a H2/Ar atmosphere. In the presence of an applied magnetic field, there is a transition from positive to negative magnetoresistance. The transition may be explained in terms of the Bright model for ordered and disordered carbon structures. Additionally, temperature dependent electrical transport experiments exhibit a zero-bias anomaly at low temperature.


Magnetic And Structural Investigation Of Heat Treated Ion Beam Sputtered Amorphous Co₇₄Fe₆B₁₅Si₅ Films, V. Harris, S. Oliver, W. Nowak, C. Vittoria, R. Culbertson, W. Elam, K. Kim Apr 2011

Magnetic And Structural Investigation Of Heat Treated Ion Beam Sputtered Amorphous Co₇₄Fe₆B₁₅Si₅ Films, V. Harris, S. Oliver, W. Nowak, C. Vittoria, R. Culbertson, W. Elam, K. Kim

Vincent G. Harris

As-deposited and annealed specimens of ion beam sputtered amorphous Co₇₄Fe₆B₁₅Si₅ thin films were examined to explore the correlation between changes in magnetic properties and atomic structure. Specimens were characterized magnetically, by traditional ac and dc techniques and structurally, via conversion-electron extended x-ray absorption fine structure analysis. Results show significant ordering of the higher order atomic shells around the transition metal ions well below the crystallization temperature. This ordering evolves into a body- centered-cubic configuration around both the Co and Fe ions. Increases in nearest neighbor peak positions in the EXAFS Fourier transforms were observed to correlate with increasing annealing temperatures ...


Information Sharing In Capacity Constrained Supply Chains, Lauren Davis, Russell King, Thom Hodgson, Wenbin Wei Dec 2010

Information Sharing In Capacity Constrained Supply Chains, Lauren Davis, Russell King, Thom Hodgson, Wenbin Wei

Dr. Lauren B Davis

We present a modelling approach for quantifying the value of information in supply chains using Markov decision processes (MDP). The case where information sharing occurs is modelled using a completely observable MDP. A restricted observation MDP is used to model the case where no information sharing occurs. We illustrate the use of this framework on a two-stage capacity-constrained supply chain consisting of a supplier and a retailer. We quantify the value of information sharing in this setting and construct several performance measures to identify the benefits to both the retailer and supplier as a result of the information sharing partnership.


Checking The Feasibility Of Dial-A-Ride Instances Using Constraint Programming, Gerardo Berbeglia, Gilles Pesant, Louis-Martin Rousseau Dec 2010

Checking The Feasibility Of Dial-A-Ride Instances Using Constraint Programming, Gerardo Berbeglia, Gilles Pesant, Louis-Martin Rousseau

Gerardo Berbeglia

No abstract provided.


Covering Models And Optimization Techniques For Emergency Response Facility Location And Planning: A Review, Xueping Li, Zhaoxia Zhao, Xiaoyan Zhu, Tami Wyatt Dec 2010

Covering Models And Optimization Techniques For Emergency Response Facility Location And Planning: A Review, Xueping Li, Zhaoxia Zhao, Xiaoyan Zhu, Tami Wyatt

Tami H Wyatt

No abstract provided.


Evaluating The Impact Of Patient Arrival Patterns In The Performance Of Appointment Scheduling Rules, Alcides Santander-Mercado, Jose Zayas-Castro, Laila Cure, Ali Yalcin Dec 2010

Evaluating The Impact Of Patient Arrival Patterns In The Performance Of Appointment Scheduling Rules, Alcides Santander-Mercado, Jose Zayas-Castro, Laila Cure, Ali Yalcin

Laila Cure

This paper evaluates the ability of commonly used Appointment Scheduling Rules (ASRs) in smoothing the effect of environmental factors in the performance of an outpatient scheduling system. ASRs have been widely implemented in outpatient clinics to improve performance measures such as staff idle time, patient waiting time, and facility congestion. However, the successful implementation of an ASR depends on its ability in dealing with the environmental factors affecting the system. Factors such as no-shows, variability of consultation times, patient unpunctuality, walk-in patient arrivals and the number of admitted patients per session affect the performance of the clinics in terms of ...


Challenges And Models In Supporting Logistics System Design For Biomass-To-Bioenergy Industry, Xiaoyan Zhu, Xueping Li, Qingzhu Yang, Yuerong Chen Dec 2010

Challenges And Models In Supporting Logistics System Design For Biomass-To-Bioenergy Industry, Xiaoyan Zhu, Xueping Li, Qingzhu Yang, Yuerong Chen

Xueping Li

No abstract provided.


Intelligent Dynamic Control Of Stochastic Economic Lot Scheduling By Agent-Based Reinforcement Learning, Jiao Wang, Xueping Li, Xiaoyan Zhu Dec 2010

Intelligent Dynamic Control Of Stochastic Economic Lot Scheduling By Agent-Based Reinforcement Learning, Jiao Wang, Xueping Li, Xiaoyan Zhu

Xueping Li

No abstract provided.


Business Ethics As Rational Choice, John Hooker Dec 2010

Business Ethics As Rational Choice, John Hooker

John Hooker

No abstract provided.