Visible light positioning (VLP) is widely believed to be a cost-effective answer the growing demand for real-time indoor positioning. However, due high computational cost of image processing, most existing VLC-based systems fail deliver satisfactory performance in terms speed and accuracy, both which are crucial navigation. This paper proposes novel VLP solution that provides accurate high-speed navigation via designs an elaborate flicker-free line coding scheme lightweight processing...

Abstract Photons provide an excellent platform for information transfer and processing. The detection extraction of carried by photons are essential quantum communication computation. However, current schemes difficult to meet the anticipation scaling up processing networks. Here, we propose a multi-node network (MIND) scheme experimentally verify its feasibility large-scale free-space optical network. By retrieving spatial arrival time correlation from multiple nodes, demonstrate...

We formulate the production inventory routing planning with an integrated mixed integer linear programming (MILP) model where food quality level is explicitly traced throughout supply chain. The objective of proposed to maximize total profit, which equals selling revenue minus summation production, and transportation cost. then use illustrative examples show effectiveness investigate impact perishability. Analyses based on computational results a set randomly generated instances are given.

As a consequence of industrial development, large quantities hazardous materials are shipped everyday. Most related studies consider the risks as fixed weights on edges. However, loads vehicles important factors about risks. Thus, considering parameters cannot reflect actual practice. In addition, vehicle routing models in previous simultaneously minimize total transportation cost and risk. simply risk fleet whole evaluate each vehicle's Although is low, specific may still be very high. this...

In general, reverse logistics network design has been driven by a need to reduce costs and improve customer service without considering its environmental impact. this paper, we address problem regarding carbon emission. The is formulated as bi-objective, mixed-integer, nonlinear programming model under various operation technologies transport modes in the truck tire remanufacturing industry. An improved non-dominated sorting genetic algorithm II (NSGA-II) solves NP-hard with bi-objectives....

Proactive scheduling aims at the generation of robust baseline schedules, which has been studied for many years with assumption that activity splitting is not allowed. In this paper, we focus on proactive resource-constrained project problem in each can be split discrete time instants under constraints a maximum number and minimum period continuous execution. problem, setup times are also considered. A mathematical model established analyzed, two properties one lemma proposed. As proved to...

Aircraft stands and runways at airports are critical airport resources for aircraft scheduling parking. Making use of limited apron runway to improve efficiency is becoming increasingly important. In this paper, we study a realistic Scheduling Parking Problem (ASPP) with the goal simultaneously determining takeoff landing time each consideration wake vortex effect constraints parking positions in target airport. The objective ASPP minimise total service aircraft. We developed mixed-integer...

In this paper, we consider the finite-time synchronization for drive-response BAM neural networks with time-varying delays. Instead of using stability theorem and integral inequality method, by maximum-value two new criteria are obtained to ensure considered systems. The inequalities in our applied obtaining maximum-valued designing novel controllers, different from those existing papers.

We study a new problem of location-inventory-routing in forward and reverse logistic (LIRP-FRL) network design, which simultaneously integrates the location decisions distribution centers (DCs), inventory policies opened DCs, vehicle routing decision serving customers, goods are produced damaged repaired by manufacturer then returned to market satisfy customers’ demands as ones. Our objective is minimize total costs manufacturing remanufacturing goods, building shipping (new or recovered)...

This article investigates the impact of information sharing on supply chain performance when considering product loss in e-commerce. By characterizing four mechanisms, we analyze optimal decisions bullwhip effects and inventory costs near/far-distance e-commerce contexts. The analytical results reveal vital significance to cost reductions. Particularly, far-distance e-commerce, if online retailer only shares demand information, wholesaler may suffer an even worse effect than that without...

In this paper, we study a two-echelon capacitated facility location problem with plant size selection (TECFLP-PSS). Given set of potential sites for plants, each which is associated several possible sizes and corresponding unit production costs, depots customers demands, the TECFLP-PSS aims to optimise locations sizes, depot product flows from opened plants then end under single-source constraints. The objective satisfy all customers’ demands minimum total cost opening, transportation. We...

This research examines how a traditional handwritten paper shopping list differs from digital created on smart devices in influencing consumers’ planning and behavior. We propose that includes more items than list, products are less hedonic those list. Furthermore, the use of leads to unplanned purchases store, while results planned purchases. also discuss psychological processes underlying these effects. conduct three studies which we manipulate type track actual provide support for our hypotheses.