Optimizing Green Supplier Selection and Order Allocation: A Fuzzy DNAP-Fuzzy TOPSIS-Bi Objective Mathematical Model Approach with Harmony Search Algorithm (original) (raw)

2023, Industrial Management Journal (IMJ)

Objective In the realm of green supply chain management, the pivotal responsibilities of companies involve supplier selection and order allocation. These tasks were treated as independent challenges in prior studies. This issue holds significant importance within the context of green supply chain management, demanding the simultaneous consideration of both quantitative and qualitative criteria. These criteria, at times conflicting, necessitate an indepth analysis of trade-offs. There is a pressing need for a comprehensive framework capable of concurrently addressing both aspects. In addition to accommodating green criteria, such a framework should enable the determination of order quantities allocated to suppliers.

Ant Colony Optimization ( Aco ) for Graph Coloring Problem

2008

We describe an artificial Ant Colony Optimization (ACO) capable of solving the graph coloring problem. Ants of the artificial colony are able to generate successively shorter feasible tours by using information accumulated in the form of pheromone trail deposited of the edge of the colonies ant. Computer simulations demonstrate that the artificial ant colony is capable of generating good solutions. It is the successful use natural metaphor to design an optimization algorithm. We generated randomly 20 graphs of 100 nodes, the performance is a best than any other available heuristic techniques such that genetic algorithm and others, so the average of coloring of a graphs is less than any other algorithms. We achieve the goal the goal of the problem

ممارسات إدارة الموارد البشرية الخضراء والميزة التنافسية

Roa Iktissadia Review, 2018

تهدف هذه الدراسة إلى تحليل وبلورة الإطار المفاهيمي لممارسات إدارة الموارد البشرية الخضراء وإبراز أثرها في تحقيق الميزة التنافسية المستدامة لمنظمات الأعمال، وذلك عبر مواءمة ممارسات إدارة الموارد البشرية مع الاستراتيجية البيئية للمنظمة. علما أن هذه الدراسة تستمد أهميتها بشكل أساسي من كونها من الدراسات القليلة التي ربطت بين ممارسات إدارة الموارد البشرية الخضراء والميزة التنافسية وبشكل يحقق المواءمة بين البعد البيئي والبعد الاقتصادي الذي يعتبر هدفا جوهريا لمنظمات الأعمال. ومن جهة أخرى فإنها تمثل قيمة مضافة في مجال الدراسات باللغة العربية التي تعتبر نادرة في هذا المجال. وقد اعتمدت منهجية الدراسة على مقاربة نظرية تحليلية لأدبيات إدارة الموارد البشرية الخضراء والميزة التنافسية، وتوصلت الدراسة إلى نتائج تؤكد على التأثير الإيجابي لممارسات إدارة الموارد البشرية الخضراء على الأداء البيئي والميزة التنافسية.

Optimization of the reagent types and dosage in selective flotation of Taknar mine Cu-Zn ore by using D-Optimal method of statistical experiments design

In this research, optimization and modeling of chalcopyrite-sphalerite-pyrite selective flotation of TAKNAR Cu-Zn ore with 2.91% Zn and 1.26% Cu conducted by using D-Otimal method of experiments design. Process input factors were: A) four mixed collector types (MC1, MC2, MC3 and MC4), B) Tow depressant systems: (CuCN (60 g/t) – ZnSO4 ((200-500 g/t)) system and dextrin – ZnSO4 system) and C) pH (8-12). According to the results obtained from experiments, quadratic model for both Cu and Zn recovery and linear model for pyrite content in Cu concentrate were selected. For both Cu and Zn recovery responses, the mixed collector type factor was the most important one and for pyrite content, pH was the most important factor. In optimum flotation conditions, Cu recovery, Zn recovery and pyrite content were 89.04%, 25.3% and 2.02% respectively, with MC2 as mixed collector, dextrin as pyrite depressant, ZnSO4 dosage of 500 g/t and pH=11.35. When ZnSO4 consumption was minimized, Cu recovery, Zn ...

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