نتایج جستجو برای: routing and lateness penalties a mixed
تعداد نتایج: 20370985 فیلتر نتایج به سال:
Purpose The purpose of this study was to create an air movement operations planning model rapidly generate mission request (AMR) assignment and routing courses action (COA) in order minimize unsupported AMRs, aircraft utilization cost. Design/methodology/approach In paper, the US Army Aviation problem is modeled as a mixed integer linear program (MILP) extension dial-a-ride (DARP). paper also i...
what miller wants is a theatre of heightened consciousness. he speaks of two passions in a man, the passion to "feel" and the passion "know". he belives that we can have more of the latter. he says: drama is akin to the other inventions of man in that it ought to help us know more and not merely to spend our feelings. the writing of the crucible shows us that he is trying to give more heightene...
the debate whether esp teachers need to have knowledge of the specialized field they are teaching has been an issue in the literature over the last two decades. the aim of conducting this study was to explore iranian learners’ and instructors’ beliefs and attitudes concerning the role of specialized knowledge in teaching esp classes. a seventeen item questionnaire was administered to 400 esp le...
The freshness of perishable products, in addition to other economic aspects such as production, inventory, and transportation management, is one the main challenges food supply chains. Therefore, integration routing decisions essential. In this study, a new production model for products with uncertain demand presented. aim minimize costs routing, wasted penalties non-fresh products. more applic...
Cell formation problem mainly address how machines should be grouped and parts be processed in cells. In dynamic environments, product mix and demand change in each period of the planning horizon. Incorporating such assumption in the model increases flexibility of the system to meet customer’s requirements. In this model, to ensure the reliability of the system in presence of unreliable machine...
we commence by using from a new norm on l1(g) the -algebra of all integrable functions on locally compact group g, to make the c-algebra c(g). consequently, we find its dual b(g), which is a banach algebra so-called fourier-stieltjes algebra, in the set of all continuous functions on g. we consider most of important basic theorems about this algebra. this consideration leads to a rather com...
Multi-constraint quality-of-service routing will become increasingly important as the Internet evolves to support real-time services. It is well known however, that optimum multi-constraint QoS routing is computationally complex, and for this reason various heuristics have been proposed for routing in practical situations. Among these methods, those that use a single mixed metric are the most p...
Abstract Following the emergency caused by Covid‐19 pandemic, there is need, among other measures, to modify urban mobility plans in order reduce use of collective public transport, reducing crowding people while also preventing traffic congestion through discouraging private vehicles. From this perspective, retail companies operating within cities must reorganize themselves, considering both u...
this study aimed at examining the effects of iranian efl learners’ anxiety, ambiguity tolerance, and gender on their preferences for corrective feedback (cf, henceforth). the effects were sought with regard to the necessity, frequency, and timing of cf, types of errors that need to be treated, types of cf, and choice of correctors. seventy-five iranian efl students, twenty-eight males and forty...
textbooks play a crucial role in language learning classrooms. the problem is that among the great quantity of available textbooks on the market which one is appropriate for a specific classroom and a group of learners. in order to evaluate elt textbooks, theorists and writers have offered different kinds of evaluative frameworks based on a number of principles and criteria. this study evaluate...
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