Results 21 to 30 of about 5,150,898 (294)

In-plane and out-of-plane bending moments and local stresses in mooring chain links using machine learning technique

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2021
This paper proposes an efficient approach based on a machine learning technique to predict the local stresses on mooring chain links. Three-link and multi-link finite element analyses were conducted for a target chain link of D107 with steel grade R4; 24,
Jae-bin Lee   +2 more
doaj   +1 more source

Focused Crawler for Rainstorm Disaster Strategy Based on Web Space Evolutionary Algorithm [PDF]

open access: yesJisuanji gongcheng, 2019
Aiming at the shortcomings of single target optimization algorithm to solve the problem that the crawler problem is difficult to obtain the optimal weighting factor and easy to fall into the local optimum,the multi-objective optimization algorithm is ...
LIU Jingfa,LI Xin,JIANG Shengyi
doaj   +1 more source

Multiple UAVs as Relays: Multi-Hop Single Link Versus Multiple Dual-Hop Links [PDF]

open access: yes, 2018
Unmanned aerial vehicles (UAVs) have found many important applications in communications. They can serve as either aerial base stations or mobile relays to improve the quality of services.
Zhao, Nan   +3 more
core   +1 more source

Link Services or Link Agents?

open access: yes, 1998
A general link service for the WWW has been used within an Electronic Libraries' project. Experience using it shows that as the links become increasingly interesting to the user, processing them becomes increasingly expensive. Eventually textual analysis,
W. Hall   +5 more
core   +2 more sources

DE-Algorithm-Optimized Fuzzy-PID Controller for AGC of Integrated Multi Area Power System with HVDC Link

open access: yesEnergies, 2022
A power system’s nonlinearity and complexity increase from time to time due to increases of power demand. Therefore, properly designed power system controlsare required.
Solomon Feleke   +4 more
doaj   +1 more source

Comparative Analysis of Multi-Link Selection Strategies for Next-Generation Aeronautical Communications

open access: yesIEEE Access
Next-generation aviation demands seamless connectivity across heterogeneous networks, yet maintaining uninterrupted links under strict performance requirements remains a major challenge.
Stefan Subasu   +4 more
doaj   +1 more source

Dynamic Modeling and Simulation of a Rotating Single Link Flexible Robotic Manipulator Subject to Quick Stops [PDF]

open access: yes, 2014
Single link robotic manipulators are extensively used in industry and research operations. The main design requirement of such manipulators is to minimize link dynamic deflection and its active end vibrations, and obtain high position accuracy during its
Noroozi, Siamak, Dupac, Mihai
core   +1 more source

Multi‐antenna joint covert communication with a public communication link over wireless fading channel

open access: yesIET Communications, 2021
This paper studies multi‐antenna covert communication exploiting a public communication link over the wireless fading channel. In particular, a relatively practical covert communication scenario is considered for the first time, where a warden with ...
Yuda Lin   +3 more
doaj   +1 more source

Performance Analysis of a Multi-Hop Parallel Hybrid FSO/RF System over a Gamma–Gamma Turbulence Channel with Pointing Errors and a Nakagami-m Fading Channel

open access: yesPhotonics, 2022
Due to the influence of the atmospheric environment and pointing errors, the performance of free space optical communication is greatly limited. In this paper, we propose a parallel multi-hop hybrid free space optical (FSO)/radio frequency (RF) system to
Yan Wu   +4 more
doaj   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben   +4 more
wiley   +1 more source

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