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Decision Making in Location Selection:
An Integrated Approach with Clustering and TOPSIS
-- K Kumar and S Kumanan
Selection of the location is one of the most important decision-making processes which requires considering several criteria based on the mission and the strategy. In supply chain management, determining optimal facility location is a crucial problem. This study aims to provide a decision support model in order to help the decision makers to select the best location. It proposes a hybrid method, which incorporates K-means and Fuzzy C-Means (FCM) clustering techniques and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) into an evaluation process to solve the Facility Location Selection (FLS) problem. These methods effectively shortlist a set of viable locations out of several alternatives and choose the most suitable option effectively. The results of hybrid method are validated with other approaches, demonstrated for effectiveness and feasibility of the model to real world applications. As a result, this application shows that the method can be an important supportive decision-making tool for FLS. Further, the suggested methodology can be applied for any type of selection problems involving any number of attributes. © 2011 IUP. All Rights Reserved.
Design Optimization Studies
on Compressor Rotor Blade Root Attachment
-- H R Rekha, R V Praveena Gowda and U Chandrashekar
Gas turbine engine components for military applications need to be designed with high strength to weight ratio, in addition to higher durability. Dovetail joints are used to secure compressor blades to rotor disc in a gas turbine. One of the weakest parts of the entire rotating assembly in gas turbine engine is the joint between rotor disc and the compressor blade. Stress analysis of dovetail attachments presents great challenges due to high stress concentration and weight budgeting. The objective of this paper is to conduct integrated stress analysis to evaluate the distribution of stresses in dovetail disc and blade attachment of compressor. The integrated method like finite elements technique and photoelasticity can provide accurate assessment of stress situation. Optimization of disc parameters using design of experiments is also done for redistribution of stress and mitigation of stress concentration. Slight variation in the dovetail geometry shows significant reduction of stress at dovetail joint. © 2011 IUP. All Rights Reserved.
Multi-Item Inventory Control Model
with Space Constraints for Perishable Items
-- G N Purohit and Himanshu Rathore
In this paper, a multi-item inventory control model is developed for perishable items in which production (or supply) is instantaneous with no lead time. Demand is uniform and deterministic and shortages are not allowed. The model is solved analytically for minimizing the total inventory cost, using Kuhn-Tucker theorem. The results are also illustrated numerically. © 2011 IUP. All Rights Reserved.
Selection of Project as Important Beginning
for Information Technology Project Management
--Nasina Jigeesh
In project management, selection of project is the foremost activity. Since it is the foundation on which all the project management is based, it should be given top priority by keeping in view the organization’s strategy and business. Several factors influence the project selection process. This study focuses on the factors influencing the Information Technology (IT) project selection process. A survey was conducted in two mid-sized IT organizations, one public and another private, and nine small-sized IT companies to study their business practices in selecting projects, and major influencing issues were identified. Along with developing a framework, the study presents a System Dynamics (SD) influence diagram and describes the type of influence among the issues and ultimately on project selection. © 2011 IUP. All Rights Reserved.
Information Technology for Maintaining Land Records in India:
An Operations Perspective
--S N Singh and O P Dubey
Recent developments in Information and Communication Technology (ICT) have introduced a plethora of opportunities for development in every conceivable area. A weak land record system has been viewed as a systematic weakness. As a result, the Government of India started the centrally sponsored scheme of Computerization of Land Records (CoLR). The CoLR scheme involved three agencies: the National Informatics Centre (NIC); the Ministry of Rural Development (MoRD); and the state government. NIC is responsible for upgrading the district centers with latest hardware, software, terminals and printers to expedite the work of data entry. The progress across the country has been highly skewed. Some of the states have made good progress, while others have lagged behind. As a result of this, overall human resources and infrastructure requirement for land management has reduced. © 2011 IUP. All Rights Reserved.
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