IME Graduate Student Conference Papers
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Santos-Pinzon, Jorge E. (Wichita State University. Graduate School, April 23, 2010)[more][less]
Abstract: Revenue management (RM) is a methodology used to allocate resources in order to maximize revenue. Capacity allocation is one of the problems in RM when demand surpasses the available capacity. This problem is addressed by allocating capacity using a dynamic capacity apportionment procedure (DCAP). In this study, the objective is to analyze the effectiveness of DCAP and present its behavior under different scenarios and business conditions such as, non-decreasing due dates, multiple products, and contracts for capacity reservation. Simulations showed that among 600 experimental conditions replicated 10 times, DCAP resulted in a maximum total profit increase of 51.3% increase and a minimum of -0.18% compared to the first come first serve policy. Additionally, results also demonstrated that factors such as capacity tightness, profit attractiveness, and order rate scenarios significantly influenced DCAP’s performance. Description: Paper presented to the 6th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, April 23, 2010.Research completed at the Department of Industrial Engineering, College of Engineering URI: http://hdl.handle.net/10057/3238 Files in this item: 1
GRASP_2010_181-182.pdf (131.9Kb) -
Safaie, Nasser (Wichita State University. Graduate School, April 23, 2010)[more][less]
Abstract: The sample size determination plays a significant role in design and analysis of many engineering problems plus data sampling projects. There is a number of sampling techniques including both classical as well as Bayesian techniques and only some of them consider the economical aspect. The objective of this paper is to offer an economic Bayesian approach for determination of sample size. Mathematical models are derived and used to establish implementation boundaries from economic and technical viewpoints. In addition, numerical examples are used to highlight the economic advantages of Bayesian approach. Using simulated data, the performance of the proposed approach is compared to the classical methods in terms of the number of sample size criterion. Description: Paper presented to the 6th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, April 23, 2010.Research completed at the Department of industrial and Manufacturing Engineering, College of Engineering URI: http://hdl.handle.net/10057/3236 Files in this item: 1
GRASP_2010_177-178.pdf (126.8Kb) -
Krishnamurthi, Ranjith Kumar (Wichita State University. Graduate School, April 23, 2010)[more][less]
Abstract: The availability of the high capacity crawler cranes at the project site during the construction phase of the wind farm may help the turbine assembly rate, which may significantly vary due to the terrain at the project site. Increasing the crane availability at the project site by optimizing the crane utilization rate will reduce the project duration. As a result, the number of turbines that generate electricity early in the construction phase will increase and the payback time will be reduced, although increasing the number of cranes will result in higher investment costs. Description: Paper presented to the 6th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, April 23, 2010.Research completed at the Department of Industrial and Manufacturing Engineering, College of Engineering URI: http://hdl.handle.net/10057/3215 Files in this item: 1
GRASP_2010_135-136.pdf (109.3Kb) -
Nezami, Farnaz Ghazi (Wichita State University. Graduate School, April 23, 2010)[more][less]
Abstract: Corporate sustainability as a newly defined concept is based on five main pillars of environment, business excellence, innovation, governance and human contributions. Among these pillars, environment is an important one since it has a wide common area with other pillars. In this paper, environmental sustainability as an important challenge to achieve a sustainability program in any corporation is discussed. This paper develops some important metrics to assess the environmental sustainability program of any given corporation. Moreover, as there are some overlaps among environment and other pillars of sustainability, these similarities and overlaps will be discussed. Finally, the application of introduced metrics in top five Fortune companies will be illustrated to accredit the practicality of the introduced metrics. Description: Paper presented to the 6th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, April 23, 2010.Research completed at the Department of Industrial and Manufacturing Engineering, College of Engineering URI: http://hdl.handle.net/10057/3209 Files in this item: 1
GRASP_2010_103-104.pdf (102.2Kb) -
Abedin, Farhana (Wichita State University. Graduate School, April 23, 2010)[more][less]
Abstract: Laser machining being a non-contact process possesses several advantages such as no tool wear or damage and no contact force induced problems. Laser cutting involves thermal process and it does not depend on the strength and hardness of the work piece, thus making it ideal for cutting non-homogeneous material. In this research work several papers related to the heat affected zone (HAZ) of laser machining of CFRP and GFRP are reviewed. It was found that laser parameters such as specific laser energy, laser power, repetition rate, work piece temperature determine the extent of HAZ. In CFRP HAZ in perpendicular laser grooving is much higher than that in parallel grooving. Presence of nitrogen jet decreases the work piece temperature leading to lower HAZ. Observations of the HAZ area of CFRP material revealed fiber swelling of 50 or 60% and fibers near the top are seen to curl up. In case of GFRP charred black material called shell and melted glass fibers are observed in the HAZ. It is also observed that the extent of HAZ affect the static tensile and bending strengths of CFRP. Tensile strength reduces linearly as HAZ increases. A comparison of laser cutting on CFRP using three types of laser is also presented here. Nd:YAG laser cutting on CFRP at optimized parameters has produced least HAZ and highest bending strength. Description: Paper presented to the 6th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, April 23, 2010.Research completed at the Department of Mechanical and Industrial Engineering, College of Engineering URI: http://hdl.handle.net/10057/3180 Files in this item: 1
GRASP_2010_63-64.pdf (105.1Kb)
