Results 11 to 20 of about 38,832 (252)

Simulation and Analysis of Passive Rolling Compensation of High Sea Salvage System

open access: yesMATEC Web of Conferences, 2017
Method and device of a flexible interception and salvage system was introduced in this paper. In order to study the effect of wave motion on salvage operation, we proposed a passive wave compensation scheme that utilizes a combination of variable-pitch ...
Lin Liqun, Chen Zhixin
doaj   +3 more sources

Design and Full-Scale Experimental Results of a Semi-Active Heave Compensation System for a 200 T Winch

open access: yesIEEE Access, 2019
Lifting and lowering a load on the ocean can be a dangerous task but can be made easy and safe by adopting heave compensation (HC) devices. The design and full-scale experimental results of a 3000-m semi-active heave compensation (AHC) system for a 200-T
Wangqiang Niu   +3 more
doaj   +1 more source

The Interaction of Pre-programmed Eye Movements With the Vestibulo-Ocular Reflex

open access: yesFrontiers in Systems Neuroscience, 2018
The Vestibulo-Ocular Reflex (VOR) works to stabilize gaze during unexpected head movements. However, even subjects who lack a VOR (e.g., vestibulopathic patients) can achieve gaze stability during planned head movements by using pre-programmed eye ...
Stephanie E. Haggerty   +2 more
doaj   +1 more source

Hybrid Adaptive Fault-Tolerant Control for Compound Faults of Hypersonic Vehicle

open access: yesIEEE Access, 2021
This study investigates the hybrid fault-tolerant control (FTC) for hypersonic flight vehicles (HFVs) under the rudder structure fault (RSF) and rudder angle deviation fault (RADF).
Kai-Yu Hu, Wenhao Li, Zian Cheng
doaj   +1 more source

Unbalanced and Reactive Currents Compensation in Three-Phase Four-Wire Sinusoidal Power Systems

open access: yesApplied Sciences, 2020
In an unbalanced linear three-phase electrical system, there are inefficient powers that increase the apparent power supplied by the network, line losses, machine malfunctions, etc.
Rafael Montoya-Mira   +4 more
doaj   +1 more source

Wind power compensation is not for the birds : an opinion from an environmental economist [PDF]

open access: yes, 2011
This article advocates for better implementation of the Environmental Impact Assessment (EIA) framework as applied to wind power development, with a particular focus on improving compensatory restoration scaling.
Cole, Scott, Scott G. Cole
core   +1 more source

Co-contraction and passive forces facilitate load compensation of aimed limb movements [PDF]

open access: yes, 2006
Zakotnik J, Matheson T, Dürr V. Co-contraction and passive forces facilitate load compensation of aimed limb movements. Journal of Neuroscience. 2006;26(19):4995-5007.Vertebrates and arthropods are both capable of load compensation during aimed limb ...
Zakotnik, Jure   +2 more
core   +2 more sources

Improving the Force Display of Haptic Device Based on Gravity Compensation for Surgical Robotics

open access: yesMachines, 2022
Haptic devices are applied as masters to provide force displays for telemedicinal robots. Gravity compensation has been proven to be crucial for the accuracy and capability of force displays, which are critical for haptic devices to assist operators ...
Lixing Jin   +4 more
doaj   +1 more source

An impedance approach to reduce the contact-instability whilst drilling with active heave compensation [PDF]

open access: yes, 2012
The bit-bounce, or contact-instability, phenomenon which occurs in the drill string suspended from a floating vessel with an active drill string compensator to maintain a steady weight on the drill bit is investigated.
Hatleskog, Jan, Dunnigan, Mathew Walter
core   +1 more source

Development and Application of a 60 t Drilling String Motion Compensator

open access: yesShiyou jixie, 2020
A 60 t drill string motion compensator has been developed to adapt the structural characteristics of the hydraulic portal derrick of the drilling system in exploration vessel "Marine Geology No. 10".
Zheng Wanli   +6 more
doaj  

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