Research on tugboat scheduling optimization model considering the reliability of tugboat matching scheme [PDF]
Scientific ReportsThe 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.
Mengchi Li, Botang Li
exaly +6 more sources
A multi-objective fuzzy programming model for port tugboat scheduling based on the Stackelberg game [PDF]
Scientific ReportsTo 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
Yui-Yip Lau +2 more
exaly +3 more sources
Long working hours, poor sleep quality, and work-family conflict: determinant factors of fatigue among Indonesian tugboat crewmembers [PDF]
BMC Public Health, 2021 Background Tugboat crewmembers are susceptible to fatigue during their 24-h work shifts, despite the availability of rest time. The fatigue experienced by seafarers contributes to marine accidents and metabolic and cardiovascular diseases, which have ...
Muchtaruddin Mansyur +4 more
doaj +2 more sources
An improved gray wolf optimization to solve the multi-objective tugboat scheduling problem. [PDF]
PLoS ONEWith 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 +2 more sources
Quadratic programming-based autonomous cruise control of an intelligent tugboat. [PDF]
PLoS ONETo address the multi-objective control problem of autonomous cruising, collision avoidance, and input constraints in intelligent tugboats, a quadratic programming-based autonomous cruise control method is proposed. The method enables the tugboat to reach
Hongkun He +4 more
doaj +2 more sources
A Study on Control System Design for Tugboat-Assisted Vessel Berthing Under Tugboat Failure
ActuatorsThis paper investigates the controllability of vessel berthing systems assisted by multiple tugboats under actuator faults or failures. In such interconnected systems, a failure of an individual tugboat can potentially compromise the berthing operation ...
Jung-Suk Park +2 more
doaj +2 more sources
Rekayasa Hijau: Jurnal Teknologi Ramah Lingkungan, 2021 ABSTRAK Kapal tugboat digunakan untuk membantu kapal yang akan masuk atau keluar pelabuhan. Untuk mendorong dan menarik kapal maka diperlukan propeller sebagai mesin penggerak kapal.
Kelly Cristin Prananda Lumbanraja +2 more
doaj +1 more source
Analysis of the Concentration of Emissions from the Spanish Fleet of Tugboats
Atmosphere, 2022 At present, the sensitivity of society towards emissions in commercial maritime ports is increasing, which is reflected in the large number of studies on the control of emissions in them, perhaps because the most important commercial ports are located in
Andrés Ortega-Piris +4 more
doaj +1 more source
Barekeng, 2022 Optimizing adequate tugboat services is very much needed to support the operational improvement of the Tanjung Perak port. This study uses the triple exponential smoothing method to predict the number of tug service requests in 2021 and the assignment ...
Alvin Nuralif Ramadanti +4 more
doaj +1 more source
Neuroscience Approach to Situational Awareness: A Research on Marine Navigation
Journal of Eta Maritime Science, 2023 This study investigates the cognitive levels of tugboat captains, key players during port manoeuvres, which are a crucial part of sea navigation. The objective is to reveal the main neurophysiological findings related to the measurements of the tugboat ...
Serkan Kahraman +3 more
doaj +1 more source