This paper develops a decentralized leader-follower game for network design of a competitive supply chain problem in which a new chain as the leader enters a market with one existing supply chain as a follower. Both chains produce an identical product, customer demand is inelastic and customer utility function is based on Huff gravity-based model. The leader wants to shape his network and set a...

هدف: پژوهش حاضر با هدف شناسایی پیامدهای تحمل ابهام رهبران و طراحی الگوی جامعی از این پیامدها صورت ­گرفته ­است.طراحی/ روش‌شناسی/ رویکرد: رویکرد کیفی روش تحلیل­ مضمون انجام­ شده­ است. جامعه­ آماری عبارتند خبرگان دانشگاهی اجرایی وزارت نفت که تجربه تصمیم‌­گیری مدیریت در شرایط عدم اطمینان را دارند. نمونه نوزده نفر بوده ­است. نمونه‌­گیری پژوهش، هدفمند گلوله‌برفی انجام ­شد. داده‌ها نیز طریق مصاحبه گرد...

In view of the current situation lack suitable calculation models for analysis production dynamics fractured horizontal well with CO2 huff and puff in shale reservoirs，based on process mechanism puff, an analytical model reservoirs was proposed, which took into account changes crude oil viscosity volume caused by difference concentration at different locations formation after soaking...

It is now well known that a healthy urban ecosystem crucial element to healthier citizens (Astell-Burt and Feng 2019), better air (Ning et al. 2016) water quality (Livesley 2016), overall, more resilient environment (Huff 2020). With ecoTeka, an open-source platform for tree management, we leverage the power of OpenStreetMap (Mooney 2015), Mappilary, open data allow decision makers improve thei...

Abstract. Access to homecare is paramount for the older population wishing not move retirement homes. In Zurich, organization “Spitex Zürich” public provider, allowing experience high-quality life at home through regular visits. A major factor ensuring self-determined living consists of a detailed understanding spatial accessibility Spitex locations. Therefore, this paper concerned with applyin...