نتایج جستجو برای: two phase heuristic
تعداد نتایج: 2923069 فیلتر نتایج به سال:
This paper investigates the integrated optimization of production, distribution and inventory decisions related to supplying multiple retailers from a central production facility. A single-item uncapacitated lot-sizing problem is defined for optimizing production decisions and inventory management. The optimization of daily distribution is modeled as a traveling salesman problem or a vehicle ro...
the purpose of the present study was to see which one of the two instruction-processing instruction (pi) and meaningful output based instruction (mobi) accompanied with prompt and recast- is more effective on efl learners’ writing accuracy. in order to homogenize the participants in term of language proficiency a preliminary english test (pet) was administrated between 74 intermediate students ...
Standardized and objective design criteria for evaluating web-based learning platforms can effectively distinguish the quality of a platform and, therefore, contribute in improving web-based learning outcomes. This is a two-phase study, in which Delphi technique and heuristic evaluation were employed in the first phase to develop the evaluation criteria and scale of web-based learning platforms...
the purpose of this study was to examine the english language needs of medical students at tehran university of medical sciences . analysis of the needs took place for three groups: 320 undergraduate students, 30 postgraduate students and 20 university instructors. a triangulation approach to collect data was used in which a combination of the quantitative (using the questionnaires) and qualita...
a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...
In this study, a two phase hybrid heuristic approach was proposed to solve the multi-depot multi-vehicle inventory routing problem (MDMVIRP). Inventory routing problem (IRP) is one of the major issues in the supply chain networks that arise in the context of vendor managed systems (VMI) The MDMVIRP combines inventory management and routing decision. We are given on input a fleet of homogeneous ...
High profitability and high costs have stiffened competition in the airline industry. The main purpose of study is to propose a computationally efficient algorithm for integrated fleet assignments aircraft routing problems real-case hub spoke planning problem. economic concerns operations led need minimising increasing ability meet rising demands. Since fleets are most limited valuable assets c...
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