Every day, an abundance of perishable materials and products are transferred from suppliers to producers, as well producers retailers. In the meantime, operating costs, transportation environmental impacts enhance due limited lifespan dairy products, time constraints, inventory hold, high frequency transportation. This paper is about designing a three-level sustainable supply chain under uncert...

every time a visitor sets foot in an ecotourism site, he/she causes a negative impact. this is an unavoidable fact. an ecotourism program initiates many public use activities that will have impacts ,both positive and negative. an ecotourism management plan seeks to minimize the negative impacts.therefore monitoring and managing of visitor impacts are fundamental ecotourism management strategie...

Sustainable solutions to our nation's material and energy needs must consider environmental, health, and social impacts while developing new technologies. Building a framework to support interdisciplinary interactions and incorporate sustainability goals into the research and development process will benefit green chemistry and other sciences. This paper explores the contributions that diverse ...

Appropriate production plans can make resources utilized effectively as well as minimize waste. However, currently most of the precast fabricators propose production plans depending on the rule of thumb, resulting in the squander of resources and postponed delivery. Computerized scheduling techniques provide more precise outcomes than those made manually. The goal of this study is to develop a ...

The mapping of tasks and messages and the assignment of fixed priorities in distributed real-time systems are known to be NP-hard problems, and thus there are no optimal methods to accomplish them in polynomial time. This fact makes them suitable problems to be approached with generic search and optimization algorithms. In this paper we propose a genetic algorithm with a permutational solution ...

This paper presents a new mathematical programming model for the bi-criteria mixed-model assembly line balancing problem in a just-in-time (JIT) production system. There is a set of criteria to judge sequences of the product mix in terms of the effective utilization of the system. The primary goal of this model is to minimize the setup cost and the stoppage assembly line cost, simultaneously. B...

The Ant Colony Optimization (ACO) metaheuristic is a bio-inspired approach for hard combinatorial optimization problems for stationary and non-stationary environments. In the ACO metaheuristic, a colony of artificial ants cooperate for finding high quality solutions in a reasonable time. An interesting example of a non-stationary combinatorial optimization problem is the Multiple Elevators Prob...

Recent literature on sustainable logistics networks points to two important questions: (i) How to spot the preferred solution(s) balancing environmental and business concerns? (ii) How to improve the understanding of the trade-offs between these two dimensions? We posit that a visual exploration of the efficient frontier and trade-offs between profitability and environmental impacts are particu...

In the last decade, a lot of effort has been put into securing software application during development in the software industry. Software security is a research field in this area which looks at how security can be weaved into software at each phase of software development lifecycle (SDLC). The use of attack patterns is one of the approaches that have been proposed for integrating security duri...