The simplest examples where the simplex method cycles and conditions where expand fails to prevent cycling This paper introduces a class of linear programming examples which cause the simplex method to cycle indefinitely and which are the simplest possible examples showing this behaviour. The structure of examples from this class repeats after two iterations. Cycling is shown to occur for both ...

A worldwide shortage of SAP related skills threatens the viability of many Enterprise Systems implementations limits the adoption of Enterprise Systems in developing countries. SAP, the leading Enterprise Systems vendor, has established its University Alliance Program (UAP) to help address these skill shortages. The SAP UAP provides the opportunity for universities to access SAP solutions and a...

Wireless local area network (WLAN) has been widely used in many sectors. The popularity gained is due to many reasons, such as ease of installation, installation flexibility, mobility, reduced cost-of-ownership, and scalability. However, regardless of the benefits, WLAN have some security threats. This paper begins by introducing the concept of WLAN. The introductory section gives brief informa...

Organizations spend significant resources tracking customer satisfaction and managing service delivery. Although a great deal of effort is expended in understanding what goes on within each of these areas, little or no effort has been applied to identifying and quantifiing the relationships between the two. The objective of this research is to discover and establish potential relationships betw...

Major goals for the future of transportation materials include reduced weight of components, reduced cost of materials and increased use of renewable content. Reinforcement of transportation composites with plant fibers has the potential to decrease component weight relative to glass fiber reinforcement, reduce cost of materials relative to carbon fiber reinforcement, and significantly increase...

What is the reason for acquisitions? Till now, strategies related to the daily operations of the firm like increased sale, reduced cost or managerial ambitions have been the prevalent motive. However, a new dynamic motive, the competence explanation is emerging. The purpose of this paper is to develop the existing typology on acquisition motives with a combined approach of competence, resource ...

Laser forming of sheet metal offers the advantages of requiring no hard tooling and thus reduced cost and increased flexibility. It also enables forming of some materials and shapes that are not possible now. In single-axis laser bending of plates, the bending edge is found to be somewhat curved and the bending angle varies along the laser-scanning path. These phenomena are termed edge effects,...

In this paper a general shop scheduling problem with sequence dependent setup times arid alternative r[.~ sources is considered, where optimization criteria are both makespan and sum of setup times. Two cooperative models for the problem based on Constraint Programming arc proposed. The first is used to model the scheduling constraints, while the second is a muhipath model used for setup optimi...

Measurements of atmospheric temperature, pressure, water vapor, and composition are important to users in the Earth science, defense, and intelligence communities. Nanosatellites (with mass < 10 kg, such as CubeSats) can support miniaturized instruments for atmospheric sounding and characterization. Nanosatellite constellations can improve spatial and temporal weather sensor coverage of Earth a...

Fractional step (or projection) methods are a widely used technique for uncoupling the pressure solution in the incompressible Navier-Stokes equations while still satisfying the incompressibility constraint. Traditional fractional step methods have a time splitting error that can become quite significant if any of the terms in the momentum equation are treated implicitly. Higher order splitting...