Results 1 to 10 of about 9,791 (320)

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

Scientific 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, Mengchi Li, Yushun Lei, Yan Zhou, Di Liu, Jianjun Tu, Botang Li   +6 more
doaj   +5 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, Risna Sagitasari, Grace Wangge, Astrid B. Sulistomo, Aria Kekalih   +4 more
doaj   +4 more sources

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

Scientific 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
Yangjun Ren, Qiong Chen, Yui-yip Lau, Maxim A. Dulebenets, Botang Li, Mengchi Li   +5 more
doaj   +3 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.
Peng Yao, Xingfeng Duan, Jiale Tang
doaj   +3 more sources

The Ballad of the Little Tugboat in the Context of Brodsky’s Poetry

RUDN Journal of Studies in Literature and Journalism
Examined Brodsky’s first published poem, The Ballad of the Little Tugboat , in connection with other texts by the poet: Stanzas , Stanzas to the City , Poems in April , and some others.
Elena G. Tumanova
doaj   +4 more sources

Intelligent Multi-Objective Tugboat–Barge Scheduling for Inland Waterway Operations Using Generative Adversarial Learning and Reinforcement-Based Optimization

IEEE Open Journal of Intelligent Transportation Systems
Tugboat–barge coordination in inland waterway transportation presents critical multi-objective optimization challenges due to interdependent constraints including fleet capacity, operational costs, dynamic tidal conditions, and temporal ...
Rapeepan Pitakaso, Kanchana Sethanan, Thanatkij Srichok, Kongkidakhon Worasan, Kuo-Jui Wu   +4 more
doaj   +3 more sources

Developing a Decision Support Framework for Tugboat Capacity Expansion: PT PIT’s Dual-Port Tugboat Operations

INOVASI
Indonesia’s growing coal production has increased pressure on port logistics, particularly tugboat operations that are vital for barge maneuvering. PT PIT, the sole tug service provider for PTBA, currently operates with only two tugboats, resulting in limited capacity and increasing delays in coal shipments.
Cahyo Ady Nugraha, Akbar Adhi Utama
semanticscholar   +4 more sources

Coordinated Allocation of Channel-Tugboat-Berth Resources Under Tidal Constraints at Liquid Terminal

Applied Sciences
Driven by the surging global demand for crude oil and its byproducts, liquid tanker vessels have undergone a marked shift toward ultra-large dimensions.
Lingxin Kong, Hanbin Xiao, Yudong Wang, Keming Chen, Min Liu   +4 more
doaj   +3 more sources

Desain Konseptual Hybrid Propulsion Mesin Diesel dengan Motor Listrik pada Tugboat 70 Ton Bollard Pull Untuk Aplikasi di Pelabuhan [PDF]

Jurnal Teknik ITS, 2015
Tugboat Adalah Salah Satu Jenis Kapal Yang Berfungsi Untuk Membantu Menarik Kapal Besar Di Area Pelabuhan. Dalam Menjalankan Kerjanya, Tugboat Beroperasi Pada Mode Operasi Yang Berbeda – Beda.
Imron Noor Ardiwijaya, Indrajaya Gerianto, I Made Ariana   +2 more
doaj   +1 more source

Investigation of Effect on Environmental Performance of Using LNG as Fuel for Engines in Seaport Tugboats [PDF]

Journal of Marine Science and Engineering, 2021
Decarbonization of ship power plants and reduction of harmful emissions has become a priority in the technological development of maritime transport, including ships operating in seaports.
Sergejus Lebedevas, Lukas Norkevičius, Peilin Zhou   +2 more
doaj   +2 more sources