Results 61 to 70 of about 15,709 (307)
Mixed integer programming in production planning with backlogging and setup carryover : modeling and algorithms [PDF]
, 2012 This paper proposes a mixed integer programming formulation for modeling the capacitated multi-level lot sizing problem with both backlogging and setup carryover.
A Federgruen +41 more
core +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Lot sizing and scheduling — Survey and extensions [PDF]
European Journal of Operational Research, 1997 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Drexl, Andreas, Kimms, Alf
openaire +3 more sources
Joint Economic Lot Sizing Optimization in a Supplier-Buyer Inventory System When the Supplier Offers Decremental Temporary Discounts [PDF]
, 2008 This research discusses mathematical models of joint economic lot size optimization in a supplier-buyer inventory system in a situation when the supplier offers decremental temporary discounts during a sale period.
Rusdiansyah, A. (Ahmad) +1 more
core
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source
On the Wagner-Whitin Lot-Sizing Polyhedron [PDF]
Mathematics of Operations Research, 2001 We study a family of unbounded polyhedra arising in the study of uncapacitated lot-sizing problems with Wagner-Whitin costs. We present a new proof of integrality based on completely characterizing the bounded faces of maximal dimension, and in particular showing that they are integral.
PEREIRA, Olivier, WOLSEY, Laurence
openaire +3 more sources
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Firefly Algorithm: Minimizing Cost on Single-Level Lot-Sizing Problem
Journal of Computing Research and Innovation, 2018 Nowadays, the industrial company plays a very important role to our country. However, the manufacturer industry has big issues in the production planning which called planning horizon where, the lot-sizing problem is one of the most important issues in ...
Siti Hafawati Jamaluddin +3 more
doaj
Implementasi Algoritma Wagner-Within pada Manajemen Inventori di PT X
Business and Finance Journal, 2018 The increasing competition in the manufacturing industry caused increasing inconsumer demand of the quality and quantity of a good product. Therefore, manufacturing companies must have reliable services, policies and product qualities to satisfy its ...
Puspandam Katias, Achmad Affandi
doaj +1 more source
Lot Sizing with Piecewise Concave Production Costs [PDF]
INFORMS Journal on Computing, 2014 We study the lot-sizing problem with piecewise concave production costs and concave holding costs. This problem is a generalization of the lot-sizing problem with quantity discounts, minimum order quantities, capacities, overloading, subcontracting or a combination of these.
Koca, E., Yaman H., Aktürk, M.S.
openaire +5 more sources