ارتقای قابلیت اطمینان در زنجیره‌های تامین دارویی بیمارستانی با رویکرد پویایی‌شناسی سیستم‌ مبتنی بر بلاک‌چین

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه صنایع، دانشکده مهندسی صنایع، دانشگاه علوم و فنون مازندران، بابل، ایران.

چکیده
هدف: این پژوهش بررسی می‌کند که چگونه فناوری بلاکچین می‌تواند قابلیت اطمینان و عملکرد عملیاتی را در زنجیره‌های تامین دارویی بیمارستان با تمرکز بر تغییرپذیری موجودی و پاسخگویی به تقاضا بهبود بخشد.
روش‌شناسی پژوهش: یک مدل پویایی‌شناسی سیستم‌ها برای شبیه‌سازی زنجیره سه‌سطحی شامل تولیدکننده، توزیع‌کننده و بیمارستان توسعه داده شد. در این مدل دو سناریوی اشتراک‌گذاری اطلاعات، مقایسه گردید که شامل: روش سنتی با جریان اطلاعات متمرکز و دارای تاخیر و روش مبتنی بر بلاک‌چین با اشتراک‌گذاری بلادرنگ و غیرمتمرکز داده‌ها.
یافتهها: نتایج نشان داد که به‌کارگیری بلاک‌چین موجب پایداری بیشتر موجودی‌ها، کاهش ماندگاری عقب‌ماندگی سفارش بیمارستان و کوتاه‌تر شدن میانگین تاخیر تحویل می‌شود. شفافیت اطلاعات بلاک‌چین، پویایی‌های داخلی سیستم را بهبود می‌بخشد. متوسط زمان تاخیر تحویل سفارشات بیمارستان حدود %15.1 کاهش و متوسط سفارشات معوق بیمارستان نیز %15.8 بهبود یافته است. همچنین، پایداری موجودی‌ها و سفارشات معوق تقویت شده است، به‌طوری‌که انحراف معیار موجودی بیمارستان %21.5 کاهش و انحراف معیار زمان تاخیر تحویل حدود %10 کاهش یافته است. این تغییرات درمجموع به بهبود قابلیت اطمینان خدمت و ارتقای عملکرد کلی زنجیره‌تامین منجر می‌گردد.
اصالت/ارزش افزوده علمی: این پژوهش با ادغام فناوری بلاک‌چین و مدل‌سازی پویایی‌شناسی سیستم‌ها در بستر زنجیره دارویی بیمارستانی، شواهد کمی و کاربردی در زمینه نقش شفافیت غیرمتمرکز در مدیریت کیفیت‌محور زنجیره تامین ارایه می‌کند.

کلیدواژه‌ها

موضوعات

عنوان مقاله English

Reliability enhancing in hospital pharmaceutical supply chains using a blockchain-based system dynamics approach

نویسندگان English

Hamidreza Savarolia
Babak Shirazi
Iraj Mahdavi
Ali Tajdin
Department of Industrial Engineering, Mazandaran University of Science and Technology, Babol, Iran.
چکیده English

Purpose: This paper examines how blockchain technology can improve reliability and operational performance in hospital pharmaceutical supply chains with a focus on inventory variability and responsiveness to demand.
Methodology: A system dynamics model of a three-echelon chain (manufacturer–distributor–hospital) is developed. Two information-sharing scenarios are compared: a traditional setting with centralized, delayed information and a blockchain setting with real-time, decentralized data sharing.
Findings: Results indicate that blockchain adoption enhances behavioral stability, reduces the persistence of hospital backlog, and shortens mean delivery lead time. Specifically, mean lead time decreases by ~15.1% and mean hospital backlog decreases by ~15.8% (both statistically significant). However, the difference in mean hospital inventory is not significant; stability improves, with inventory SD decreasing by ~21.5% and lead-time SD decreasing by ~10%. Taken together, these effects strengthen service reliability and overall supply-chain performance.
Originality/Value: By integrating blockchain-based decentralized data sharing with system dynamics modeling in the hospital pharmaceutical context, this study provides quantitative evidence of how transparency supports quality-oriented supply chain management.

کلیدواژه‌ها English

Blockchain
System dynamics
Hospital pharmaceutical supply chain
Reliability
Performance paper
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