Results 1 to 10 of about 97 (65)

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

open access: yesScientific Reports
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.
Yangjun Ren   +6 more
exaly   +5 more sources

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

open access: yesScientific Reports
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
Maxim Dulebenets   +2 more
exaly   +5 more sources

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

open access: yesPLoS 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.
Peng Yao, Xingfeng Duan, Jiale Tang
doaj   +6 more sources

Tugboat Scheduling with Multiple Berthing Bases under Uncertainty

open access: yesJournal 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   +2 more
exaly   +5 more sources

Dynamic Tugboat Scheduling for Large Seaports with Multiple Terminals

open access: yesJournal 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   +2 more
exaly   +4 more sources

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

open access: yesJournal 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   +4 more sources

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

open access: yesJournal 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   +3 more
exaly   +4 more sources

An adaptive large neighborhood search algorithm for the tugboat scheduling problem

open access: yesComputers and Industrial Engineering, 2023
10.1016/j.cie.2023 ...
Xiaoyang Wei, Yijing Liang
exaly   +2 more sources

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

open access: yesJournal 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   +3 more
doaj   +2 more sources

Joint Scheduling of New Energy Hybrid Tugboats and Berths Under Shore Power Constraint

open access: yesJournal of Marine Science and Engineering
With the rapid advancement of battery technology, new energy hybrid tugboats have been progressively adopted. In order to align with the trend of electrifying tugboat fleets, a mixed-integer linear programming (MILP) model for the joint scheduling of new
Liangyong Chu   +4 more
doaj   +2 more sources

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