Results 51 to 60 of about 1,285,259 (263)

In-Lab Demonstration of an Underwater Acoustic Spiral Source

open access: yesSensors, 2023
Underwater acoustic spiral sources can generate spiral acoustic fields where the phase depends on the bearing angle. This allows estimating the bearing angle of a single hydrophone relative to a single source and implementing localization equipment, e.g.,
Ruben Viegas   +2 more
doaj   +1 more source

Research on the Vibration Behavior of Ring–Block Friction Pair Made of Materials of Water-Lubricated Rubber Bearing under Special Operating Conditions

open access: yesApplied Sciences, 2023
A water-lubricated rubber bearing (WLRB) is prone to generate frictional vibration noise under special operating conditions, which seriously affects the acoustic stealth performance of warships and threatens their navigation safety.
Zi-Ang Zhang   +4 more
semanticscholar   +1 more source

Application of response reconstruction method of wing box structure based on neural network

open access: yesHangkong gongcheng jinzhan, 2023
It is of great practical significance for real-time health monitoring to reconstruct other position responses by using limited measuring point information of wing box structure in complex navigation with harsh bearing conditions.
WANG Xianhao   +4 more
doaj   +1 more source

A Decision Support System Using Fuzzy Logic for Collision Avoidance in Multi-Vessel Situations at Sea

open access: yesJournal of Marine Science and Engineering, 2023
The increasing traffic and complexity of navigation at sea require advanced decision support systems to ensure greater safety. In this study, we propose a novel decision support system that employs fuzzy logic to improve situational awareness and to ...
Tanja Brcko, Blaž Luin
doaj   +1 more source

Evidence consistent with the multiple-bearings hypothesis from human virtual landmark-based navigation [PDF]

open access: yesFrontiers in Psychology, 2015
One approach to explaining the conditions under which additional landmarks will be learned or ignored relates to the nature of the information provided by the landmarks (i.e., distance versus bearings). In the current experiment, we tested the ability of such an approach to explain the search behavior of human participants in a virtual landmark-based ...
Forloines, Martha R.   +2 more
openaire   +5 more sources

Effects of a 1-mm difference in bearing thickness on intraoperative bearing movement and kinematics in Oxford unicompartmental knee arthroplasty

open access: yesBMC Musculoskeletal Disorders, 2022
Background The choice of mobile bearing (MB) thickness is essential for obtaining successful results after mobile-bearing Oxford unicompartmental knee arthroplasty (UKA).
Kohei Kawaguchi   +7 more
doaj   +1 more source

Using Surface-Motions for Locomotion of Microscopic Robots in Viscous Fluids [PDF]

open access: yes, 2014
Microscopic robots could perform tasks with high spatial precision, such as acting in biological tissues on the scale of individual cells, provided they can reach precise locations.
Hogg, Tad
core   +1 more source

A novel approach to investigate temperature field evolution of water lubricated stern bearings (WLSBs) under hydrodynamic lubrication

open access: yesAdvances in Mechanical Engineering, 2021
Water lubricated stern bearings (WLSBs) are the critical component of ship propulsion system and have important effect on navigation safety. Operating temperature plays a main role on the performance of WLSBs. This paper aims to investigate the effect of
Hao Zhang, Chengqing Yuan, Zusheng Tan
doaj   +1 more source

The suitability of coconut shell concrete as a replacements in term of mechanical and thermal properties – a review [PDF]

open access: yes, 2020
The most critical issue in environment protection and natural resource conservation is waste management [1]. Changes in environment and an increase in population are the main causes of the many processes of deterioration which have altered the ecosystem ...
Leman, Alif Syazani   +2 more
core  

Distal Femur Intraarticular Fracture in a Late Arthritic Knee Treated With Osteosynthesis and Computer Navigation Assisted Primary Total Knee Replacement: A Case Report

open access: yesCureus, 2022
The incidence of osteoporosis and osteoarthritis is on the rise. What further complicates the scenario is a stress fracture in a weight-bearing joint such as a knee in the presence of arthritis, making the treatment challenging.
S. K. Bhattacharjee, A. Mehta
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy