نتایج جستجو برای: loop model
تعداد نتایج: 2203088 فیلتر نتایج به سال:
We consider a quantum fully packed loop model on the square lattice with frustration-free projector Hamiltonian and ring-exchange interactions acting plaquettes. A boundary is added to favour domain-wall conditions link ground state properties combinatorics six-vertex literature. discuss how term fractures Hilbert space into Krylov subspaces, we prove that ergodic within each subspace, leading ...
میگوی ببری سبز خلیج فارس،p. semisulcatus یکی از گونه های مهم جنس penaeus در خلیج فارس است. براساس خصوصیات ریختی، زیرگونه جدیدی از آن، با نام p.(penaeus) semisulcatus persicus معرفی شده است. برای مطالـعه تفاوت های ژنتیکی میان گونه و زیر گونه مذکور، d-loop به عنوان نشانگر میتوکندریایی و its 2 به عنوان نشانگر ژنومیک مورد توجه قرار گرفتند. لذا 3 نمونه از گونه و 3 نمونه از زیر گونه از سواحل بوشهر جم...
The design of closed-loop logistics (forward and reverse logistics) has attracted growing attention with the stringent pressures of customer expectations, environmental concerns and economic factors. This paper considers a multi-product, multi-period and multi-objective closed-loop logistics network model with regard to facility expansion as a facility location–allocation problem, which more cl...
abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...
In a global economy, an efficient supply chain as a main core competency empowers enterprises to provide products or services at the right time in the right quantity, at a low cost. This paper is to plan a single product, multi-echelon, multi-period closed loop supply chain for high-tech products (which have continuous price decrease). Ultimately, considering components rated to procurement, pr...
an inexact-fuzzy-stochastic optimization model for a closed loop supply chain network design problem
the development of optimization and mathematical models for closed loop supply chain (clsc) design has attracted considerable interest over the past decades. however, the uncertainties that are inherent in the network design and the complex interactions among various uncertain parameters are challenging the capabilities of the developed tools. the aim of this paper, therefore, is to propose a n...
steady state and dynamic fermentations of baker's yeast in molasses based media were analyzed in a laboratory scale bioreactor. sugar and biomass balances together with the monod biokinetics were used to develop the process model. parameters of the model were obtained using collected experimental data. model predicted open loop responses to step changes in feed concentration as well as dilution...
today, due to the direct and reverse logistics plays an important role in reducing the costs in supply chain. in this paper, in order to provide a closed-loop supply chain network including supply centers, production, distribution, collection, recycling and disposal of a used linear mixed integer programming. this paper to consider multi-period and multi-product in multi-level supply chain and ...
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