Results 61 to 70 of about 25,143 (223)
A Survey of Vehicle Routing Problem
MATEC Web of Conferences, 2017 In recent years, vehicle routing problem (VRP) has become an important content in logistics management research, and has been widely used in transportation system, logistics distribution system and express delivery system.
Cao Wujun, Yang Wenshui
doaj +1 more source
, 2013 The plasmonic properties of sphere-like bcc Na nanoclusters ranging from Na$_{15}$ to Na$_{331}$ have been studied by real-time time-dependent local density approximation calculations. The optical absorption spectrum, density response function and static
Guo, Guang-Yu +2 more
core +1 more source
Dynamic VRP in pharmaceutical distribution—a case study [PDF]
Central European Journal of Operations Research, 2006 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Magalhães, José, Sousa, Jorge de
openaire +2 more sources
Leveraging Public Transit for Robotic Deliveries: A Column Generation Approach
Naval Research Logistics (NRL), EarlyView.ABSTRACT Autonomous mobile robots (AMRs) are small, electric, wheeled vehicles that operate at pedestrian speeds. In the last‐mile delivery service considered in this study, a fleet of AMRs is deployed across multiple recharging depots within a service area, from which they depart to perform point‐to‐point deliveries. We consider an operational setting
Yishay Shapira, Mor Kaspi
wiley +1 more source
Multi-Robot exploration for coal mine rescue based on the extension of undirected graph
Meitan kexue jishuAfter coal mine disasters, the environment deteriorates and rescue tasks are complex and arduous, resulting in numerous threats to the rescue personnel.
Linna ZHOU +4 more
doaj +1 more source
Vehicle routing under time-dependent travel times: the impact of congestion avoidance [PDF]
, 2008 Daily traffic congestions form major problems for businesses such\ud as logistical service providers and distribution firms. They cause\ud late arrivals at customers and additional hiring costs for the truck\ud drivers.
Hans, E.W., Kok, A.L., Schutten, J.M.J.
core +1 more source
Ant colony optimization and its application to the vehicle routing problem with pickups and deliveries [PDF]
, 2009 Ant Colony Optimization (ACO) is a population-based metaheuristic that can be used to find approximate solutions to difficult optimization problems. It was first introduced for solving the Traveling Salesperson Problem. Since then many implementations of
Catay, Bulent, Çatay, Bülent
core +1 more source
Consistent Collaborative Vehicle Utilization
Networks, EarlyView.ABSTRACT Carriers are often reluctant to collaborate with other carriers in delivering goods to customers despite potential cost reductions. A durable collaboration requires attention to more aspects. Carriers typically wish to remain competitive, unconstrained by the collaboration, increasing profits by attracting new customers and withholding ...
Sahand Asgharieh Ahari +2 more
wiley +1 more source
Analysis and optimization of weighted ensemble sampling [PDF]
, 2017 We give a mathematical framework for weighted ensemble (WE) sampling, a binning and resampling technique for efficiently computing probabilities in molecular dynamics. We prove that WE sampling is unbiased in a very general setting that includes adaptive
Aristoff, David
core +2 more sources
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract The highly threatened African cycad genus Encephalartos faces severe threats such as habitat loss and poaching. In addition, the lack of sexual recruitment due to the absence of pollinators (pollinator collapse) has emerged as another major threat.
Paul D. Janse van Rensburg +2 more
wiley +1 more source