Results 21 to 30 of about 1,857 (291)

APPLYING A FUZZY-AHP FOR THE SELECTION OF A SUITABLE TUGBOAT BASED ON PROPULSION SYSTEM TYPE

open access: yesBrodogradnja, 2018
Selection of a tugboat to be used in a port according to the operations to be carried out is a difficult problem that requires many criteria to be evaluated at the same time.
Gökay Çakıroğlu   +2 more
doaj   +1 more source

On the Effect of Tugboat Assistance in Harbour-III : A Study on the Standard of Tugboat Assistance

open access: yesThe Journal of Japan Institute of Navigation, 1995
This paper discusses a conventional standard of tugboat assistance in a harbour using a mathematical model. Diagrams show required tug-power for each element of the harbour manoeuvres and for each ship type. The turning and drifting motion in a harbour is the most typical combined ship handling manoeuvre and the final position of this motion is ...
Hiroaki KOBAYASHI, Yasuhiro SAKAGUCHI
openaire   +2 more sources

ADRC-Based cooperative control for unmanned towing operation by multiple DP tugboats: A comparative study of two cooperative controllers

open access: yesJournal of Ocean Engineering and Science
This paper addresses the challenge of coordinated manipulation of an unactuated floating object by multiple tugboats to execute both positioning and towing operation within complex marine environments.
Xu Jiang, Lei Wang, Yiting Wang
doaj   +1 more source

The Semirara Oil Spill: Its Implications to Maritime Legislations [PDF]

open access: yesTransNav, 2007
In the stormy morning of December 18, 2005, Power Barge 106 operated by the National Power Corporation (NAPOCOR) ran aground some 200 meters off Barangay Semirara.
Melchor M. Magramo
doaj  

A Study on the Dynamic Analysis of Mooring System During Hook-up Installation

open access: yes한국해양공학회지, 2020
This study evaluated the Hook-up installation of an offshore site construction process, which is the final step in an offshore site installation process.
Min Jun Lee   +6 more
doaj   +1 more source

Analysis of Hull Shape Impact on Energy Consumption in an Electric Port Tugboat

open access: yesEnergies, 2022
The trend to replace internal combustion engines with electric zero-emission drives, visible in the automotive industry, also exists in the shipbuilding industry.
Wojciech Koznowski, Andrzej Łebkowski
doaj   +1 more source

Autonomous berthing control of tugboat based on improved backstepping sliding mode control algorithm

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveAiming at the problem of the autonomous berthing control of tugboats, this study focuses on the application of a target tracking control strategy based on virtual leadership.
Jialun LIU   +4 more
doaj   +1 more source

Investigation on a Novel Support System for Automatic Ship Berthing in Marine Practice

open access: yesJournal of Marine Science and Engineering, 2019
For safe ship berthing, all steps involved, from bringing the ship to the fairway area to directing it to the final wharf position at a desirable speed, need to be performed properly.
Van Suong Nguyen
doaj   +1 more source

Evaluation of Digital Technologies for Home‐Based Assessment in People With Amyotrophic Lateral Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Digital technologies hold promise for transforming healthcare by enhancing personalized treatments and offer valuable opportunities to improve patient care. Here, we evaluated several novel, self‐administered, home‐based, digital endpoints for their association with corresponding conventional standard clinical measures (primary) in ...
Arne Mueller   +14 more
wiley   +1 more source

Study on Abilities of Harbour Tugboats

open access: yesJournal of the Society of Naval Architects of Japan, 1987
It is widely known that tugboats play very important roles for harbour manoeuvres of large ships. There have, however, been few researches on abilities of such tugboats.In the present report, an attempt is done to establish the procedure for estimating the abilities of tugboats running with large ships.
Kose, Kuniji   +3 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy