Results 31 to 40 of about 9,571 (299)

The development of algorithms for safe control of an autonomous ship [PDF]

International Journal of Electronics and Telecommunications
The paper presents the results of a research on the development of algorithms for ship’s safe ship trajectory calculation and automatic control of the ship along the determined trajectory.
Monika Rybczak, Agnieszka Lazarowska
doaj   +1 more source

Application of fuzzy controllers in automatic ship motion control systems

International Journal of Electrical and Computer Engineering (IJECE), 2023
Automatic ship heading control is a part of the automatic navigation system. It is charged with the task of maintaining the actual ship’s course angle or actual ship’s course without human intervention in accordance with the set course or setting parameter and maintaining this condition under the effect of disturbing influences.
Oleksiy Melnyk, Oleg Onishchenko, Svitlana Onyshchenko, Oleksandr Shumylo, Sergiy Volyanskyy, Alla Bondar, Nataliia Cheredarchuk   +6 more
openaire   +1 more source

Improvement of Ship Motion Control Using a Magnitude-Rate Saturation Model [PDF]

, 2018
Motion control concepts for ships have traditionally not focused on handling actuator constraints. This paper investigates the effects on performance of a pair of nonlinear control schemes by developing and implementing a magnitude-rate saturation (MRS ...
Mikkel Eske Norgaard Sorensen, Lyngstadaas, Ole Nikolai, Tore Egil Saeterdal, Sæterdal, Tore Egil, Morten Breivik, Breivik, Morten, Ole Nikolai Lyngstadaas, Sørensen, Mikkel Nørgaard   +7 more
core   +1 more source

Time-Scale Decomposition Techniques Used in the Ship Path-Following Problem with Rudder Roll Stabilization Control

Journal of Marine Science and Engineering, 2021
The motion control of a surface ship based on a four degrees of freedom (4-DoF) (surge, sway, roll, and yaw) maneuvering motion model is studied in this paper.
Ru-Yi Ren, Zao-Jian Zou, Jian-Qin Wang
doaj   +1 more source

Perceived Motion Sickness and Effects on Shooting Performance Following Combat Vehicle Transportation

, 2006
This study used a quasi-experimental, repeated measures design to study the relationship between targeting performance and perceived motion sickness following exposure to motion in a land-based transportation setting.
Dahlman, Joakim, Staffan Nählinder, Joakim Dahlman, Nählinder, Staffan, Torbjörn Falkmer, Falkmer, Torbjörn   +5 more
core   +1 more source

Aquaporin‐4 in Narcolepsy Type 1: Investigation of Perivascular Fluid Movement in Sleep Disorders

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Narcolepsy type 1 (NT1) is caused by the loss of hypocretin‐1 leading to excessive daytime sleepiness and cataplexy. Additionally, disrupted nighttime sleep has become an increasingly recognized feature of NT1. As the glymphatic fluid movement has been linked to sleep architecture, we investigated cerebrospinal fluid (CSF) Aquaporin‐4 (AQP4 ...
Jonas Ranke, Petra Steinacker, Steffen Halbgebauer, Patrick Oeckl, Geert Mayer, Markus Otto   +5 more
wiley   +1 more source

Variable- and Fixed-Structure Augmented Interacting Multiple Model Algorithms for Manoeuvring Ship Tracking Based on New Ship Models [PDF]

, 2000
The real-world tracking applications meet a number of difficulties caused by the presence of different kinds of uncertainty - unknown or not precisely known system model and random processes’ statistics or due to abrupt changes in the system modes of ...
Semerdjiev, E., Mihaylova, L.
core  

A Two‐Stage Questionnaire and Actigraphy Screening for iRBD in a Multicenter Retrospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Isolated rapid‐eye‐movement sleep behavior disorder is a prodromal marker of synucleinopathies. However, most cases remain undiagnosed due to the insufficient predictive value of questionnaires and limited access to confirmatory video‐polysomnography. We assessed a two‐stage screening strategy combining a brief questionnaire on rapid‐
Caleb A. Massimi, Giorgio Ricciardiello Mejia, Andre Metzger, Kang Hyun Ryu, Salonee Marwaha, Eva Grzegorczyk, Li Zhou, Eliana Jacobs, Boris Gilyadov, Claudia Kunney, Liqhwa Ncube, Ankit Parekh, Emmanuel Mignot, Fanny M. Elahi, Joseph Winer, Kathleen Poston, Andreas Brink‐Kjaer, Emmanuel H. During   +17 more
wiley   +1 more source

Engagement Patterns with an AI Health Coach for Systemic Sclerosis Self‐Management: A Mixed Methods Study

Arthritis Care &Research, Accepted Article.
Objective To evaluate utility of an artificial intelligence (AI) health coach for systemic sclerosis (SSc) self‐management and identify patterns associated with participant engagement. Methods We conducted a mixed‐methods study in which an AI health coach, powered by a large language model (LLM), was used to support self‐management for SSc.
Nirali Shah, Melanie Morris, Cristina Daraban, Sophia Johnson, Susan L. Murphy   +4 more
wiley   +1 more source

A Ship Weather Routing Optimization Method Incorporating Ship Seakeeping Model [PDF]

TransNav
Weather routing problem represents one of the most significant advancements in ship energy conservation and emission reduction. Weather routing problems involve a numerous spatio-temporal ship motion states and weather characteristics, leading to ...
Zhepeng Han, Yan Zhou, Jinfen Zhang, Da Wu   +3 more
doaj   +1 more source