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The growing apprehension regarding greenhouse gas emission accompanied by fossil fuel depletion has instigated the electrification of transportation sector. As a consequence of this Electric Vehicle (EV) has emerged as an environment friendly solution for the automobile industry. For large scale deployment of EVs development of proper charging infrastructure is indispensable. Charging stations (CS)...
Increased number of container shipping nowadays, brings new challenges for container terminal to improve their operational performance. In addition with the increase of competition between ports, optimal and integrated planning will help terminal to face those challenges. This research studies about optimizing an integrated planning of the container terminal in Indonesia, using a bi-objective optimization...
Orders accepting/selection, delivery date assignment and order scheduling are important functions in a modern apparel manufacturing system where Clients request delivery dates and where it's such a big diversity of styles, fabrics and colors. In a competitive make-to-order environment in this field, it is important that the manufacturer uses the capacity efficiently and satisfies the expectations...
Pricing strategies are critical to attract buyers and motivate them to purchase more. Quantity discounts are pricing incentives used by suppliers and benefit the buyers in the sense that the more the purchased quantity the lower the unit price. This paper uses an incremental quantity discount scheme in a green supplier selection and order allocation context and proposes a multi-period single-product...
Dose-volume (DV)-based objectives are widely used in most intensity-modulated radiation therapy treatment planning, because numerous DV endpoints have been utilized. In clinical practice, DV-based optimization (DVO) with uniform or random initial intensity distributions is utilized, but without considering the non-convexity of the DV objectives. To improve the quality of DVO radiotherapy plan and...
The service network design problem (SNDP) is a fundamental problem in consolidated freight transportation. It involves the determination of an efficient transportation network and the scheduling details of the corresponding services. Compared to vehicle routing problems, SNDP can model transfers and consolidations on a multi-modal freight network. The problem is often formulated as a mixed integer...
The reduction of waste is a concept companies adopt in order to enhance their friendliness versus the environment and to contribute to sustainability. Constraints on lifetimes of products force organizations to carefully plan their production in cooperation with their supply chain partners in order to prevent decreased quality or waste of production parts and products. This gains importance because...
The individual tools of a tool group need to be qualified to run lots of certain families in wafer fabs. A qualification time window is associated with each family and each tool. This window lasts typically from a couple of days to few weeks. The time window can be re-initialized with separate qualification effort on a need by basis and can be extended by on-time processing of qualifying families...
This paper presents a simulation-based optimisation approach for planning railway hump yard operations. A hump yard is used for processing carriages (cars) brought by incoming trains, through a set of classification tracks, into newly formed outbound trains. There are specific constraints on the order in which each operation can be carried out, as well the standing order of cars in each outbound train...
This paper proposes a route recommendation system for sightseeing based on a network optimization problem. Sightseeing route planning is not difficult if a tourist initially sets satisfaction values of sightseeing spots numerically. However, it was hard to evaluate the satisfaction values objectively according to the tourist's feelings. The tourist can subjectively do a qualitative and pairwise comparison...
In this study, we are interested in the reusable containers management (e.g gases bottles, pallets, maritime containers, etc.). In this context, we address a dynamic reusable containers planning problem in a close-loop supply chain to optimize reusable containers collect, exploitation, storage and redistribution under environmental constraint in the context of reverse logistic. We propose firstly...
During orbital operations of the space station, several test missions require astronauts to conduct extravehicular activities. Because of the limitations of man-hours and resources such as extravehicular spacesuits, the overall programming of spacewalk events is a critical issue to address in operation mission planning for the space station. Based on the theory of bin packing, this paper establishes...
This paper presents the optimization of integer program, which combines linear lighting with energy saving as the objective function to manage the illumination. Most illumination usually don't abide by the design limits at the initial time of installation, so this would make the intensity of illumination extremely high. In this paper, an improved method of optimizing the energy-saving objective function...
Multi-Crop planning (MCP) optimization model for cropping pattern and water allocation is introduced as a nonlinear programming problem. Its solution promotes an efficient use of water with a flexibility to keep the chosen crops at either full or deficit irrigation throughout different stages so that the net financial return is maximized within certain production bounds and resources constraints....
In this paper, we consider a supply chain planning problem for a single manufacturer with corporate social responsibility (CSR) investment decision under uncertain demand. The activity of CSR is modeled as the investment to customers. In the mathematical model, we assume that the average demand increases if the investment of CSR is increased. The objective function is the total profit including the...
Distribution network operators (DNOs) tend to supply electrical energy to its customers in an economical and reliable manner. If wind power generation (WPG) units are planned with a suitable way, they will be the best option to reduce costs and increase the distribution network reliability. This paper proposes a WPG units planning model to determine technology type, capacity and location of WPG units...
For many years, using capacitor as generally was one of the big challenges in electrical industrials. Some of these problems refer to economical and other ones are based on technical limits. Capacitor placement is a challenge that define as the base of capacitors problems, is considered in this paper. In this paper, in order to maximizing the loss reduction benefit and voltage profile improvement...
This paper presents a study of the development of a Multiagent System for transformer placement according to its load. The growing demand for electricity requires a better management of distribution transformer load. Due to this problem many transformers are operating over their load limits. The replacement of an overloaded transformer by another of higher power is the normal procedure to solve the...
The container loading problem has been widely studied recently, in order to reduce logistical costs. The container's applicability is based on the reduction on losses, theft, damaging of goods and general costs, that such device provides. On the other hand, automated planning research, intends to assist the industrial processes for systematically specifying a set of actions that allows achieving a...
This paper deals with the home health care services. The home health care services are defined as a set of medical, paramedical and social services delivered to patients in their domicile rather than in hospital. In this paper, a new Mixed Integer Linear Programming (MILP) model is proposed to make a planning for a home health care problem. The model is optimizing routes and rosters for the health...
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