Results 1 to 10 of about 323,862 (145)

Research on tugboat scheduling optimization model considering the reliability of tugboat matching scheme. [PDF]

Sci Rep
The selection and scheduling of tugboat matching schemes are key tasks in tugboat assistance operation management. With large ships requiring more tugboat assistance, a two-stage multi-criteria decision-making method is proposed.
Ren Y, Li M, Lei Y, Zhou Y, Liu D, Tu J, Li B.   +6 more
europepmc   +4 more sources

An improved gray wolf optimization to solve the multi-objective tugboat scheduling problem. [PDF]

PLoS One
With the continuous prosperity of maritime transportation on a global scale and the resulting escalation in port trade volume, tugboats assume a pivotal role as essential auxiliary tools influencing the ingress and egress of vessels into and out of ports.
Yao P, Duan X, Tang J.
europepmc   +5 more sources

A multi-objective fuzzy programming model for port tugboat scheduling based on the Stackelberg game. [PDF]

Sci Rep
To solve the optimization problem of tugboat scheduling for assisting ships in entering and exiting ports in uncertain environments, this study investigates the impact of the decisions of tugboat operators and port dispatchers on tugboat scheduling under
Ren Y, Chen Q, Lau YY, Dulebenets MA, Li B, Li M.   +5 more
europepmc   +3 more sources

Tugboat Scheduling with Multiple Berthing Bases under Uncertainty

Journal of Marine Science and Engineering, 2023
This study proposes a novel fuzzy programming optimization model for tugboat scheduling, directly considering multiple berthing bases, time windows, and operational uncertainties.
Maxim Dulebenets, Yui Yip Lau, Botang Li   +2 more
exaly   +4 more sources

Dynamic Tugboat Scheduling for Large Seaports with Multiple Terminals

Journal of Marine Science and Engineering
Effective utilization of tugboats is the key to safe and efficient transport and service in ports. With the growth of maritime traffic, more and more large seaports show a trend toward becoming super-scale, and are divided into multiple specialized ...
Linying Chen, Pengfei Chen
exaly   +4 more sources

Optimal Scheduling of an Electric Propulsion Tugboat Considering Various Operating Conditions and Navigation Uncertainties

Journal of Marine Science and Engineering, 2022
The operating conditions of all-electric tugboats are flexible and changeable. They are more complicated than conventional vessels in terms of joint voyages and power generation scheduling.
He Yin, Peng Cheng, Hai Lan
exaly   +3 more sources

Dual-Objective Optimization of Port Tugboat Scheduling with Heterogeneous Service Capabilities

Journal of Marine Science and Engineering
As critical hubs in the global supply chain, a port’s competitiveness and sustainability are directly impacted by the efficiency and carbon emissions of its tugboat scheduling.
Chao Fang, Tian Chai, Wei Huang, Huaiwei Zhu   +3 more
doaj   +2 more sources

Logic-Based Benders Decomposition for Unmanned Electric Tugboat Scheduling Considering Battery-Swapping Operations

Journal of Marine Science and Engineering
As the electrification reform accelerates in ports worldwide, the application of electric tugboats is becoming more widely applied, posing a challenge in the balance between working arrangement and energy replenishment, especially when the shore energy ...
Guodong Ma, Yongming Huang, Guobao Zhang, Peiyu Fan   +3 more
exaly   +3 more sources

Integrated optimization of vessel traffic organization and heterogeneous tugboat scheduling in a seaport with dual one-way channels

Frontiers in Marine Science
The joint optimization of vessel traffic organization and tugboat scheduling plays a critical role in improving the efficiency of port seaside operations.
Fuquan Xu, Hongxiang Ren, Yuanjun Feng, Ye Li, Xinjian Wang   +4 more
doaj   +1 more source

Joint optimization of vessel scheduling and tugboat allocation in seaports with one-way navigation channels

Frontiers in Marine Science
With the continuous growth of port traffic volumes, limited navigation channel capacity and tugboat resources have emerged as major bottlenecks to port service efficiency, particularly in ports with one-way channel configurations, where vessel congestion
Fuquan Xu, Hongxiang Ren, Ye Li, Jiahui Shi, Changhai Wang, Changhai Wang, Yulong Wang, Yulong Wang, Xinjian Wang   +8 more
doaj   +1 more source