این پژوهش با الهام گرفتن از نتایج یک طرح مطالعاتی کاربردی، رویکرد سلسله­‌مراتبی جهت پیگیری فرایند توسعه تأمین‌کنندگان و حمایت تصمیمات موجود در هر مراحل آن ارائه‌ می‌کند. ابتدا، زمینه‌های تأمین نیازمند سپس واجد شرایط هریک زمینه‌ها به کمک تصمیم‌گیری چندشاخصه بهترین-بدترین مشخص می‌گردند. معیارهای شناسایی نیز مرور مطالعات پیشین بهره‌گیری نظرات خبرگان حوزه‌ی خرید استخراج‌شده‌اند. درنهایت، مدل ریاضی ...

Abstract This paper proposes a novel method to measure each constituent of an oil–gas–water mixture in water continuous flow, typically encountered many processes. It deploys dual-plane electrical resistance tomography sensor for measuring dispersed phase volume fraction and velocity; gradiomanometer flow density meter drift flux model estimate slip velocities; with absolute pressure temperatur...

General value functions (GVFs) in the reinforcement learning (RL) literature are long-term predictive summaries of outcomes agents following specific policies environment. Affordances as perceived action possibilities with valence may be cast into predicted policy-relative goodness and modeled GVFs. A systematic explication this connection shows that GVFs especially their deep-learning embodime...

Rotodynamic multiphase pumps are usually equipped with many compression units to provide sufficient boosting pressure for the transportation of production fluid in gas oil field. It is a challenge maintain pump performance while flow parameters each stage vary due compressibility gas-liquid phase. In this article, stage-by-stage design method proposed improve capability pump. Variations investi...

Parametric active contour models cannot provide enough precision for object segmentation. Since, based on analyzing the diffusion process of GVF, an improved external force field called as (center of local mass) CLM is proposed in this paper. The results show that our proposed algorithm provides good convergence and have very good segmentation.