Contents: Variety and Quality. Variability loss and tolerance. Determining tolerances. Tolerance design and experimental design. Offline and online quality control. Parameter design and tolerance design: case study. Experimental design for smaller is better characteristics. Experimental design for larger is better characteristics. Bypassing the S/N ratio: spring experiment. Experimental design for dynamic characteristics.

Introduction to quality engineering. designing quality into products a

Sustainable distributed permutation flow-shop scheduling model based on a triple bottom line concept

Designing a Closed-loop Supply Chain Network Considering Social Factors; A Case Study on Avocado Industry

Designing a supply chain network for blood decomposition by utilizing social and environmental factor

In the history of sustainable development, logistics has been thought of as one of the key factors in the supply chain network. In the meantime, the issue of Closed-loop Supply Chain (CLSC) has received considerable attention as it ensures many diverse industries toward sustainability. But many industries including agricultural section often fail to address and fulfill these requirements. In this study, a new CLSC network is designed for the walnut industry as a part of agricultural crop by conducting a complete review of the past studies. Therefore, a new Mixed Integer Linear Programming (MILP) for the proposed network is developed minimizing the overall costs of the walnut industry. The designed network considers both forward and reverse flow not only to meet the demands of various markets, but also to prepare the returned products for the second use. In order to solve the proposed model, a set of exact, metaheuristics, and hybrid metaheuristics are employed. Finally, the best solutions are obtained by assessing the finest initial answers using Taguchi method. The results notoriously illustrated the excellent consistency between the proposed network and the employed algorithms along with its applicability and efficiency.

Designing a sustainable closed-loop supply chain network for walnut industry

In the history of sustainable development, particular attention has been paid to waste management systems (WMS), especially in smart cities. Putting real-world assumptions into practice with real-time waste bins' fill levels has not been considered in previous literature and can be investigated by utilizing the Internet of Things (IoT) concept. In this paper, two sub-models are developed using the vehicle routing problem concept. The first sub-model uses modern traceability IoT-based devices to obtain data in real-time, making it possible to identify the threshold waste level (TWL) parameter. The importance of the first sub-model is not only to determine an effective and innovative collection route for achieving sustainable being social and environmental impacts on WMS, but also to consider the priority of visiting bins based on their significance. Both waste separation and transferring them into the recovery value center are considered in the second model, both to maximize the recovery value and minimize visual pollution. The recent and capable meta-heuristic algorithms are utilized and probed to test the proposed problem's accuracy and find the best algorithm for this problem. Finally, in the sensitivity analysis section, different parameters of the problem were investigated. Besides, by defining and analyzing two indices, the best efficiency in using the transport fleet, the optimal amount of traveled distance, and the amount of collected waste can be achieved by setting the TWL between 70 and 75%. 

Navid Akbapour

Papers

Designing a sustainable closed-loop supply chain network for walnut industry

Designing an effective two-stage, sustainable, and IoT based waste management system