Results 21 to 30 of about 146,048 (267)

Target guiding self-avoiding random walk with intersection algorithm for minimum exposure path problem in wireless sensor networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
To solve minimum exposure path (MEP) problem in wireless sensor networks more efficiently, this work proposes an algorithm called target guiding self-avoiding random walk with intersection (TGSARWI), which mimics the behavior of a group of random walkers
Tinghong Yang   +5 more
doaj   +1 more source

Variable Cell Transmission Model for Mixed Traffic Flow with Connected Automated Vehicles and Human-Driven Vehicles

open access: yesJournal of Advanced Transportation, 2022
The current research on the mixed traffic flow characteristics of human-driven vehicles (HDVs) and connected automated vehicles (CAVs) mainly focuses on the micro-level.
Yuting Jin   +4 more
doaj   +1 more source

Expected Length of the Shortest Path of the Traveling Salesman Problem in 3D Space

open access: yesJournal of Advanced Transportation, 2022
Finding the shortest path of the traveling salesman problem (TSP) is a typical NP-hard problem and one of the basic optimization problems. TSP in three-dimensional space (3D-TSP) is an extension of TSP. It plays an important role in the fields of 3D path
Hongtai Yang   +5 more
doaj   +1 more source

Intra-City Logistics Connection and Network Structure from the Perspective of Flow Space: A Case Study of Shenzhen City

open access: yesRedai dili, 2023
With the rapid development of lifestyle logistics in the service industry, such as e-commerce express and same-city delivery, new challenges have arisen in the planning and implementation of urban logistics freight and related industries.
Zhou Huan, Huang Jin, Zou Xiao
doaj   +1 more source

Differences between typical logistics systems and other city logistics generators [PDF]

open access: yesTehnika, 2021
Logistics flows in urban areas are generated by systems engaged in various business. Flows generators can be divided into typical logistics systems (logistics, distribution centers, freight terminals, logistics systems of companies, etc.), for which ...
Tadić Snežana R., Veljović Miloš M.
doaj   +1 more source

Business logistics and logistics engineering: the rocky road to a unified science of logistics [PDF]

open access: yesLogistics Research, 2010
A ‘‘science of logistics’’: Is there any? And if so, is there one—or two, or even several? To answer these questions is not easy. We know that different members of the large worldwide logistics community (which certainly does exist) would have very different views. When we started this journal, one of our assumptions was that definitely there should be
openaire   +1 more source

Regional Airports Influence Economic Development of the Region

open access: yesMATEC Web of Conferences, 2018
The paper deals with the importance of regional airport for economic development of the particular region with the possibility to cover also freight transport. In technical terms it is called the logistics centre or Freight Village.
Cempírek Václav, Dočkalíková Iveta
doaj   +1 more source

Experimental Study on Gas–Liquid Interface Evolution during Liquid Displaced by Gas of Mobile Pipeline

open access: yesEnergies, 2022
The mobile pipeline is the most effective and reliable means for the emergency oil transfer task, which is temporarily laid on the field. After completing the task, the oil in the pipeline should be emptied before the mobile pipeline is removed.
Jimiao Duan   +5 more
doaj   +1 more source

Aspects of Improvement in Exploitation Process of Passenger Means of Transport

open access: yesJournal of Advanced Transportation, 2018
Effective exploitation of means of transport in transport companies is one of the most important ways of achieving competitive advantage. Mentioned problem is particularly important in the market of passenger transport services in large agglomerations ...
Marian Brzeziński   +5 more
doaj   +1 more source

An Optimal Hierarchical Decision Model for a Regional Logistics Network with Environmental Impact Consideration

open access: yesThe Scientific World Journal, 2014
This paper proposes a new model of simultaneous optimization of three-level logistics decisions, for logistics authorities, logistics operators, and logistics users, for regional logistics network with environmental impact consideration.
Dezhi Zhang, Shuangyan Li, Jin Qin
doaj   +1 more source

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