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In this paper, we propose a mathematical model for a single period multi-product production inventory model producing stochastically imperfect items with continuous stochastic demand under budget and limited shortage constraints in Bi-fuzzy environment. The stochastic constraints are first converted into corresponding crisp values using expected value method. Here, we have considered the model as...
In this paper, queueing behavior of the Internet router employing priority based partial buffer sharing mechanism under synchronous self-similar traffic input is investigated. Input traffic is modelled by Markov modulated Poisson process (MMPP). In view of wavelength division multiplexing technology, output port of the router is modelled as multi-server (MMPP/D/c/K) queueing system. Service times...
In the modern manufacturing scenario, efforts are continuously being made to improve the performance of advanced machining processes. Electrochemical discharge machining (ECDM) is a hybrid non-traditional machining (NTM) process, which makes use of the combined advantages of two single-action NTM processes, i.e. electrical discharge machining and electrochemical machining. As a result, the performance...
A multi-product two echelon supply chain within a newsvendor framework is studied, in which semi-finished products are produced by a supplier and customized according to specific customer orders. The focus of this paper is to investigate a situation where the manufacturer wishes to determine the fraction of production performed by the supplier, its optimal semi-finished product order size, and price...
The paper aims to apply the $$({\widetilde{\alpha }}, {\widetilde{\beta }})$$ ( α ~ , β ~ ) -cuts and the resolution form of the interval-valued intuitionistic fuzzy (IVIF ) relations to develop a procedure for constructing a hierarchical clustering for IVIF max–min similarity relations. The advantage of the proposed scheme is illustrated in determining the criteria weights in multi-criteria...
In this paper, Lehmann-Type Laplace Type I reliability growth model is proposed for early detection of software failure based on time between failure observations. Cumulative time between failures of the software data is assumed to follow Lehmann-Type Laplace distribution-Type I (LLD-Type I). The parameters are estimated using Profile Likelihood Method. In terms of AIC and BIC, this distribution is...
The difference between integrated supply chain and decentralized supply chain is that in integrated supply chain, all the channel partners i.e., suppliers, manufacturers, transport providers, warehouse owners Will cooperate with each other and share the information on costs, capacities etc., to other partners with a view to reduce the overall supply chain cost. In decentralized supply chains, the...
In this paper, we have introduced the definition of $${G_{f}}$$ G f -bonvex function. To show the existence of such a function, we have also discussed a non-trivial example. Further, second-order G-Wolfe and G-Mond–Weir type primal-dual pairs have been formulated and appropriate duality results have been proved under aforesaid assumptions.
In this paper we introduce new classes of cone- $$(\Phi ,\rho )$$ ( Φ , ρ ) -convex functions which extend several generalized convexity notions introduced in the literature. We then employ the defined functions to study optimality and duality results for a vector optimization problem over cones involving support functions. A numerical example is given to illustrate the notions introduced...
In this paper we consider a single server queueing-inventory system having capacity to store S items which have a common-life time (CLT), exponentially distributed with parameter $$\gamma$$ γ . On realization of $${\textit{CLT}}$$ CLT a replenishment order is placed so as to bring the inventory level back to S, the lead time of which follows exponential distribution with parameter...
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