Results 231 to 240 of about 83,839 (349)

Design of power system stabilizer for damping power system oscillations

IOSR Journal of Electrical and Electronics Engineering, 2017
Ahmed Mohammed. Ishag, Eisa B. M. Tayeb
openaire   +1 more source

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

Deep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang, Jinxiao Liu, Gaoshuo Zhang, Wenxin Li, Changdi He   +4 more
wiley   +1 more source

High-performance low-velocity turbulent flow piezoelectric energy harvester using porous Ba_0.85Ca_0.15Zr_0.1Ti_0.9O₃ (BCZT) ceramics. [PDF]

iScience
Li Z, Roscow J, Khanbareh H, Yang R, Huo Z, Haswell G, Pan M, Taylor J, Bowen C.   +8 more
europepmc   +1 more source

New Insights in the Electrochemical Stability of Various Solid Polymer Electrolytes/Layered Positive Metal‐Oxide Electrode Interfaces in Solid‐State Lithium‐Ion Battery

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In this work, the electrochemical compatibility of a broad range of solid polymer electrolytes with two Ni‐rich nickel–manganese–cobalt cathodes (NMC622, NMC811) is investigated through a hybrid computational and experimental approach. The relative reactivity of NMC811 to NMC622 is demonstrated, as well as the role of Li cations in the electrolyte ...
Alexandre Roelens, Ashish Raj, Meron D. Tuemay, Lieven Bekaert, Xinhua Zhu, Mats Meeusen, Frank De Proft, Jean‐François Gohy, Annick Hubin, Mesfin H. Mamme   +9 more
wiley   +1 more source

Theoretical and experimental study of second order dynamic effects in nanocomposite thin film thermocouples affected by substrate roughness. [PDF]

Sci Rep
Wang H, Cui Y, Zhang H, Ma F, Bai H, Ding W, Yin J.   +6 more
europepmc   +1 more source

A Frequency-shaped Controller for Damping Inter-area Oscillations in Power Systems

, 2020
Felipe Wilches‐Bernal, David Schoenwald, Brian Pierre, Raymond H. Byrne   +3 more
openalex   +1 more source

GaIn‐Induced Polarization Control in PVDF for High‐Efficiency Energy Harvesting and Instantaneous Wireless Sensing

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a liquid metal–engineered β‐PVDF composite enabling high‐performance piezoelectric–triboelectric nanogenerators. Guided by MD/DFT simulations, GaIn doping promotes β‐phase formation and dipole alignment, while native oxides enhance charge retention.
Jiaqi Lu, Kaihang Zhang, Dinku Hazarika, Liangquan Xu, Jiatong Yao, Lifeng Xuan, Jiafeng Ni, Jianhui Wu, Jie Li, Rui Wan, Xinyu Cai, Chuanrui Chen, Yongjun Wu, Jikui Luo   +13 more
wiley   +1 more source

A unified framework to explore soliton boundary interaction using topological magnetic soliton spring oscillators. [PDF]

Sci Rep
Qiao S, Zhou Y, Yan S, Quan Z, Yang W.
europepmc   +1 more source

Damping of electromechanical oscillations using power system stabilizers

, 1995
Includes bibliographical references.
openaire   +1 more source

No Charging but Protection: Lifetime Prolongation of Spontaneously‐polarized Electrets for Energy Harvesting Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A bilayer protection approach is proposed for slowing down the surface potential decay of thin films of spontaneously‐polarized electret materials. The electret and the protective films are characterized, and the protection effectiveness is investigated under the effects of light illumination, water contact and mechanical impact.
Seyedali Sabzpoushan, Henry Juncker, Peter Woias   +2 more
wiley   +1 more source