Results 11 to 20 of about 6,987,863 (341)

A Novel PLL Structure for Dynamic Stability Improvement of DFIG-based Wind Energy Generation Systems During Asymmetric LVRT

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
The dynamic coupling effect, which is introduced by the dual-sequence phase-locked loops (PLLs) used in doublyfed induction generator (DFIG) based wind energy generation systems (WEGSs) during asymmetric low voltage ride-through (LVRT) in weak grid ...
Lei Guan, Jun Yao
doaj   +1 more source

The Effect of Water on Deck on the Roll Bifurcation of Crafts under Random Waves [PDF]

open access: yesمجله مدل سازی در مهندسی, 2021
The stability of the roll motion of crafts is of great importance because of its significant impact on safety, ease of travel, overall performance and potential capsizing of the system.
asnafi asnafi
doaj   +1 more source

Experimental Study on the Workability and Stability of Steel Slag Self-Compacting Concrete

open access: yesApplied Sciences, 2020
There is important application value and economic value in exploring the potential use of steel slag to prepare self-compacting concrete (SCC) and make full use of solid waste resources.
Suiwei Pan   +5 more
doaj   +1 more source

Effect of Different Protection on Lateral Ankle during Landing: An Instantaneous Impact Analysis

open access: yesBioengineering, 2022
Ankle sprain is the most common injury during parachute landing. The biomechanical behavior of the tissues can help us understand the injury mechanism of ankle inversion.
Junchao Guo   +5 more
doaj   +1 more source

Research on Parametric Vibration of a Steel Truss Corridor under Pedestrians Excitation Considering the Time-Delay Effect

open access: yesBuildings, 2022
With the development of the Steel Truss Corridor (STC) toward long-span and gentle development, human-induced vibration often causes large lateral vibration problems and time-delay effects of the STC, which will have a non-negligible impact on the ...
Zhou Chen   +6 more
doaj   +1 more source

Electrical system with distributed generation of radio center with abruptly variable nature of load [PDF]

open access: yesОмский научный вестник, 2022
In this work using the example of a radio center the issue of organizing an electrical system with distributed generation of a consumer with a sharply variable nature of the load is considered.
B. A. Kosarev   +3 more
doaj   +1 more source

Nonlinear Dynamic Measures of Walking in Healthy Older Adults: A Systematic Scoping Review

open access: yesSensors, 2022
Background: Maintaining a healthy gait into old age is key to preserving the quality of life and reducing the risk of falling. Nonlinear dynamic analyses (NDAs) are a promising method of identifying characteristics of people who are at risk of falling ...
Arezoo Amirpourabasi   +3 more
doaj   +1 more source

Improving Dynamic Security in Islanded Power Systems: Quantification of Minimum Synchronous Inertia Considering Fault-Induced Frequency Deviations

open access: yesElectricity, 2023
In isolated power systems with very high instantaneous shares of renewables, additional inertia should be used as a complementary resource to battery energy storage systems (BESSs) for improving frequency stability, which can be provided by synchronous ...
José Gouveia   +2 more
doaj   +1 more source

Assessment of Static Steadiness and Dynamic Stability at Various Stages of Healing of a Grade 2 Medial Collateral Ligament Tear: A Case Report

open access: yesSci, 2021
Injuries to ligaments of the knee are extremely common among athletes who participate in high-risk sports or any sport that requires frequent cutting motions, jumping, or contact. In order to determine the best way to heal these injuries, it is important
Kaycee Glattke   +4 more
doaj   +1 more source

Control of dynamic biped walking machine with limited friction in foot [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2023
A non-trivial problem in the biped walking is the preservation of stability under external influences without slowing down velocity. A dynamic walking control algorithm with a hierarchical structure is proposed in the article.
Borina A.P.
doaj   +1 more source

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