با سلام خدمت کاربران در صورتی که با خطای سیستم پرداخت بانکی مواجه شدید از طریق کارت به کارت (6037997535328901 بانک ملی ناصر خنجری ) مقاله خود را دریافت کنید (تا مشکل رفع گردد).
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A supply chain model with service level constraints and strategies under uncertainty
یک مدل زنجیره تامین با محدودیت ها و استراتژی های سطح خدمات تحت عدم قطعیت-2021 In the current socio-economic situation, the daily demand for essential goods in the business sector is always changing owing to various unavoidable reasons. As a result, choosing the right
method for profitable business has become quite tricky. This study introduces different business
strategies based on constant and fuzzy demands. There are two types of constraints considered
in this model to avoid the backorder cost. However, combining the service-level constraints with
the constant and fuzzy demand, this study compares the total costs, and finally, the best strategy
is established. Moreover, investing a small amount, this model improves the quality of the products
and reduces the vendor’s setup cost. Depending on the number of transported products, this model
follows the transportation discount policy for hassle-free delivery of the products with a minimum
delivery rate. The Kuhn-Tucker optimization technique is employed, and global optimality is verified numerically, analytically using the Hessian matrix. This model’s robustness is discussed
through a comparative study, numerical examples, sensitivity analysis, graphical representation,
and managerial insights. Finally, some concluding remarks along with future extensions are discussed.
KEYWORDS: Supply chain management (SCM) | Controllable lead time | Fuzzy demand | Transportation discounts | Distribution-free approach (DFA) | Service level constraints (SLC) |
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