Production and Operations Analysis, Seventh Edition
Production and Operations Analysis, Seventh Edition
7th Edition
ISBN: 9781478623069
Author: Steven Nahmias, Tava Lennon Olsen
Publisher: Waveland Press, Inc.
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Chapter 11.9, Problem 38P
Summary Introduction

Interpretation: Assuming a minimax rectilinear objective, the problem 32 needs to be solved.

Concept Introduction: Minimax models are used for locating facilities like emergency facility, to serve the customer in the best way, who is at the farthest point.

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Consider above problem. Suppose that the weight of facility 2 is 20. Applying the median method, it can be verified that the optimal location is (10, 10) - the centroid of department 2, where immovable structures exist. It is now desired to find a feasible and “near-optimal” location using the contour line method.
An electronics firm located near Phoenix, Arizona, is considering where to locate a new phone switch that will link five buildings. The buildings are located at (0, 0), (2, 6), (10, 2), (3, 9), and (0, 4). The objective is to locate the switch to minimize the cabling required to those five buildings.a. Determine the gravity solution.b. Determine the optimal location assuming a straight-line distance measure. (If you are solving this problem by hand, iterate the appropriate equations at least five times and estimate the optimal solution.)
Consider the transportation problem having the cost and requirement table below.  a. Obtain the initial basic feasible solution using all the three methods (i. Northwest-Corner, ii. Least-Cost and iii. VAM) and determine the value of z.   b. Use the most optimal initial basic feasible solution from (a) as your starting point to find the optimal solution. c. Draw a network showing the quantities obtained in the final iteration and the optimal value of z.
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