نتایج جستجو برای: optimal nodal ordering

تعداد نتایج: 417446  

Journal: :European Journal of Operational Research 2015
Dennis Prak Ruud H. Teunter Jan Riezebos

There exist many inventory control studies that consider either continuous review & continuous ordering, or periodic review & periodic ordering. Mixtures of the two are hardly ever studied. However, the model with periodic review and continuous ordering is highly relevant in practice, as information on the actual inventory level is not always up to date while making ordering decisions. This pap...

K.N.V. Chandrasekhar, N.S.S. Sahithi

Topology optimization has been an interesting area of research in recent years.  The main focus of this paper is to use an evolutionary swarm intelligence algorithm to perform Isogeometric Topology optimization of continuum structures.  A two-dimensional plate is analyzed statically and the nodal displacements are calculated.  The nodal displacements using Isogeometric analysis are found to be ...

Journal: :international journal of industrial engineering and productional research- 0
masoud mahootchi 424 hafez aven, tehran, iranue taher ahmadi 424 hafez avenue, tehran, iran kumaraswamy ponnambalam 200 university avenue, waterloo, canada

this paper presents a new formulation for warehouse inventory management in a stochastic situation. the primary source of this formulation is derived from fp model, which has been proposed by fletcher and ponnambalam for reservoir management. the new proposed mathematical model is based on the first and the second moments of storage as a stochastic variable. using this model, the expected value...

We develop an inventory model to determine optimal ordering policy under permissible delay in payment by considering demand rate to be stock dependent. Mathematical models are derived under two different cases: credit period being greater than or equal to cycle time for settling the account, and credit period being less than or equal to cycle time for settling the account. The results are illus...

2007
Grace Chang Bin Yu Martin Vetterli

This work addresses the recovery of an image from noisy observations when multiple noisy copies of the image are available. The standard method is to compute the average of these copies. Since the wavelet thresholding technique has been shown to eeectively denoise a single noisy copy, it is natural to consider combining these two operations of averaging and thresholding. The rst important task ...

Journal: :J. Discrete Algorithms 2007
Ulrik Brandes

Ordering a set of items so as to minimize the sum of distances between consecutive elements is a fundamental optimization problem occurring in many settings. While it is NP-hard in general, it becomes polynomially solvable if the set of feasible permutations is restricted to be compatible with a tree of bounded degree. We present a new algorithm for the elementary case of ordering the n leaves ...

2006
Konstantin Moiseev Shmuel Wimer Avinoam Kolodny

The problem of ordering and sizing parallel wires residing in a single metal layer within an interconnect channel is addressed in this paper. Wires are ordered such that cross-capacitances between neighboring wires are optimally shared for circuit delay minimization. Using an Elmore delay model including cross capacitances, an optimal wire ordering is uniquely determined, such that average sign...

1974
Vijay S. BAWA

In this paper, we obtain the optimal selection rule for ordering uncertain prospects for all individuals with decreasing absolute risk averse utility functions. The optimal selection rule minimizes the admissible set of alternatives by discarding, from among a given set of altematives. those that are inferior (for each utility function in the restricted class) to a member of the given set. We s...

Journal: :تحقیقات آب و خاک ایران 0
سمانه سیف اللهی آغمیونی کارشناس ارشد، دانشگاه تهران امید بزرگ حداد استادیار، دانشگاه تهران محمدحسین امید استاد، دانشگاه تهران

uncertainty is undoubtedly an inevitable part of programming process. a lot of effective factors in the water resources’ performance are not deterministic while their values are surely needed for the design and implantation of water systems. since an optimal design of water distribution systems is in demand of a just evaluation of the costs, efficient operation of such systems calls for a prope...

Journal: :IEICE Transactions 2005
Kyeongyeon Kim Seijoon Shim Chungyong Lee Young Yong Kim

This paper proposes a new detection ordering scheme, which minimizes average error rate of the MIMO system with per antenna rate control. This paper shows an optimal scheme minimizing average error rate expressed by the Q function, and simplifies the optimal scheme by using the minimum equivalent SINR scaled by modulation indices, based on approximated error rate. In spite of reduced complexity...

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