Covid-19’un Tedarik Zincirine Etkileri ve Olası Senaryolar

Link: https://hbrturkiye.com/blog/covid-19-un-tedarik-zincirine-etkileri-ve-olasi-senaryolar Covid-19 küresel boyutta tüm tedarik zincirleri üzerinde yıkıcı etkilere yol açmaya devam ediyor. Ürünlerinde kullandıkları hammadde ve ara ürünleri Uzak Doğu’dan tedarik eden zincirler bu etkileri çok yoğun olarak hissediyor. Öte yandan Covid-19 tüm piyasalarda ürün ve hizmetlere olan talebi ciddi ölçüde değiştiriyor. Pandeminin yol açtığı bozulmaların diğer krizlerin yol açtığı bozulmalardan en…

Optimization of Supply Chain Systems with Price Elasticity of Demand

Link: https://doi.org/10.1287/ijoc.1100.0421 Summary: A centralized multiechelon, multiproduct supply chain network is presented in a multiperiod setting with products that show varying demand against price. An important consideration in such complex supply chains is to maintain system performance at high levels for varying demands that may be sensitive to product price. To examine the price-centric behavior…

Automated Box-Jenkins forecasting tool with an application for passenger demand in urban rail systems

Link: http://dx.doi.org/10.1002/atr.1332 Summary: Efficient management of public transportation systems is one of the most important requirements in rapidly urbanizing world. Forecasting the demand for transportation is critical in planning and scheduling efficient operations by transportation systems managers. In this paper, a time series forecasting framework based on Box–Jenkins method is developed for public transportation systems.…

Design and operation of intermodal transportation network in the Marmara region of Turkey

Link: https://doi.org/10.1016/j.tre.2015.08.006 Summary: This paper presents a multi-objective optimization model for integrating different transportation modes in the design and operation of an intermodal transportation network in a geographical region. The problem is formulated as a mixed-integer optimization problem that accounts for time and congestion dependent vehicle speeds. We present modeling approach, data analysis and outline…

The facility location problem from the perspective of triple bottom line accounting of sustainability.

Link: https://doi.org/10.1080/00207543.2017.1341064 Summary: Design of facilities network, allocation of customers to be served from the facilities and their operations have strong economic, environmental and social impacts. Although the decisions in the facility location problem may have varying effects on these impacts, simultaneous consideration of these effects in the early stages of decision-making for facility location…

A Multi-Criteria Decision Analysis to Include Environmental, Social, and Cultural Issues in the Sustainable Aggregate Production Plans

Link: https://doi.org/10.1016/j.cie.2019.04.036 Summary: Aggregate production planning (APP) that is an important concept of supply chain management (SCM), is one of the tools to determine production rates, inventory levels, and workforce requirements for fulfilling customer demands in a multi-period setting. Traditional APP models employ a single objective function to optimize monetary issues only. In this paper,…