Results 61 to 70 of about 304,128 (233)

Collision Avoidance Decision Method for Unmanned Surface Vehicle Based on an Improved Velocity Obstacle Algorithm

open access: yesJournal of Marine Science and Engineering, 2022
To ensure navigation safety, unmanned surface vehicles (USVs) need to have autonomous collision avoidance capability. A large number of studies on ship collision avoidance are available, and most of these papers assume that the target ships keep straight
Yun Li, Haiyu Zhang
doaj   +1 more source

Virtual Simulation Objects Concept as a Framework for System-Level Simulation

open access: yes, 2012
This paper presents Virtual Simulation Objects (VSO) concept which forms theoretical basis for building tools and framework that is developed for system-level simulations using existing software modules available within cyber-infrastructure.
Boukhanovsky, Alexander V.   +3 more
core   +1 more source

YOLO-RC: SAR Ship Detection Guided by Characteristics of Range-Compressed Domain

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Conventional ship detection using synthetic aperture radar (SAR) is typically limited to fully-focused SAR images, limiting the development of real-time SAR ship detection.
Xiangdong Tan   +5 more
doaj   +1 more source

Ship’s Trajectory Planning Based on Improved Multiobjective Algorithm for Collision Avoidance

open access: yesJournal of Advanced Transportation, 2019
With vigorous development of the maritime trade, many intelligent algorithms have been proposed to avoid collisions due to resulting casualties and increased costs. According to the international regulations for preventing collisions at sea (COLREGs) and
Jinxin Li   +3 more
doaj   +1 more source

Numerical and Experimental Investigation of the Performance of Dynamic Wing for Augmenting Ship Propulsion in Head and Quartering Seas

open access: yesJournal of Marine Science and Engineering, 2021
Flapping-foil thrusters arranged at the bow of the ship are examined for the exploitation of energy from wave motions by direct conversion to useful propulsive power, offering at the same time dynamic stability and reduction of added wave resistance.
Kostas Belibassakis   +2 more
doaj   +1 more source

The NOMAD system : expectation-based detection and correction of errors during understanding of syntactically and semantically ill-formed text [PDF]

open access: yes, 1983
Most large text-understanding systems have been designed under the assumption that the input text will be in reasonably "neat" form (for example, newspaper stories and other edited texts).
Granger, Richard H.
core   +1 more source

Time-Domain Non-Linear Strip Theory For Ship Motions [PDF]

open access: yesThe International Journal of Maritime Engineering, 2004
A new implementation of strip theory is proposed based on the strip theory by Salvesen, et al. [1] and early work by Westlake and Wilson [2]. Compared with traditional strip theory, the main difference is that the calculation is carried out in the time domain.
Fan, Y.T., Wilson, P.A.
openaire   +3 more sources

A Novel Ship Domain-oriented Parameter of Ship Collision Risk Considering the Ship Maneuverability and Encounter Situation

open access: yesJournal of Marine Science and Application, 2023
AbstractThe identification of ship collision risks is an important element in maritime safety and management. The concept of the ship domain has also been studied and developed since it was proposed. Considering the existing trend that the ship domain is increasingly widely used in collision risk-related research, a new domain-oriented collision risk ...
Tianyu Yang, Xin Wang, Zhengjiang Liu
openaire   +1 more source

Linear time-domain strip method for ship motion prediction

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives] In order to study the nonlinear strip method for prediction of ship motions in waves, this paper develops a linear time-domain strip method to make a preliminary exploration.[Methods] Under the assumptions of strip theory,the boundary ...
ZHANG Yahui, MA Shan, DUAN Wenyang
doaj   +1 more source

LyGDI, a novel SHIP-interacting protein, is a negative regulator of FcγR-mediated phagocytosis. [PDF]

open access: yesPLoS ONE, 2011
SHIP and SHIP-2 are inositol phosphatases that regulate FcγR-mediated phagocytosis through catalytic as well as non-catalytic mechanisms. In this study we have used two-dimensional fluorescence difference gel electrophoresis (DIGE) analysis to identify ...
Payal Mehta   +10 more
doaj   +1 more source

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