نتایج جستجو برای: lot

تعداد نتایج: 44257  

Journal: :British Dental Journal 1993

The Materials Requirements Planning (MRP) method that is applied in production planning and management has some weaknesses. One of its weaknesses is that the time in MRP method is discrete, and is considered as time period. Hence we are not able to order our requirements at irregular time moments or periods. In this paper, a new form of MRP is introduced that is named Continuous Materials Requi...

Journal: :Oper. Res. Lett. 1998
Alper Sen Ömer S. Benli

We study lot streaming in shops in which the order the jobs are to be processed is immaterial. For a single job case, the properties of the optimal routing is determined. For the multi job case, two machine shops are analyzed. It is shown that lot streaming will improve makespan only if there is a job with large processing times. We show that there can be at most one such job and derive the opt...

2004
Yuxin Liu Bin Ni Xiaojun Feng Edward J. Delp

A robust, invisible watermarking scheme is proposed for digital images, where the watermark is embedded using the block-based Lapped Orthogonal Transform (LOT). The embedding process follows a spread spectrum watermarking approach. In contrast to the use of transforms such as DCT, our LOT watermarking scheme allows larger watermark embedding energy while maintaining the same level of subjective...

2000
T. M. YOUNG L. W. McLAUGHLIN

The expansion of export demand for sheep meats has led to a resurgance of interest by producers in short term feedlot systems of fattening for sheep and lambs. Apart from the cost of rations, the incidence of disease and metabolic disorders is an important determinant of profitability. This paper describes a feedlot experiment at Hamilton during which an outbreak of polioencephalomalacia (PEM) ...

Journal: :The Journal of Cell Biology 2008
Richard Robinson

A pair of adhesion receptors work together to fi ne-tune suppression of RhoA and promote membrane protrusion, say Bass et al. During cell migration, the actin cyto-skeleton regulator, RhoA, must be alternately inhibited (to allow the leading membrane edge to protrude) and reactivated (to pull up the trailing end of the cell from behind). Inhibition occurs when a receptor called α5β1 integrin, w...

Journal: :Scientific American 2017
Carlo Ratti Assaf Biderman

Journal: :Oper. Res. Lett. 2007
Hamish Waterer

This paper introduces the single item lot sizing problem with inventory gains. This problem is a generalization of the classical single item capacitated lot sizing problem to one in which stock is not conserved. That is, the stock in inventory undergoes a transformation in each period that is independent of the period in which the item was produced. A 0 1 mixed integer programming formulation o...

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