Results 31 to 40 of about 13,458,796 (341)

High energy storage density and power density achieved simultaneously in NaNbO3-based lead-free ceramics via antiferroelectricity enhancement

, 2020
High-performance lead-free dielectric ceramics with simultaneously high energy storage density and power density are in high demanded for pulse power systems. To realize excellent energy-storage characteristics, a strategy to enhance antiferroelectricity
Xiaoyan Dong, X. Li, Xiuli Chen, Hongyun Chen, Congcong Sun, Junpeng Shi, F. Pang, Huanfu Zhou   +7 more
semanticscholar   +1 more source

Localized Reluctivity Stabilization of Hysteresis Model for Transient Finite Element Simulation of Ferromagnetic Materials

Eng
The hysteresis model can be used to accurately predict the magnetic hysteresis characteristics of ferromagnetic materials. Incorporating the hysteresis model into finite element calculations enables precise prediction of field distributions, voltage or ...
Xiaotong Fu, Shuai Yan, Yaxing Zhou, Zhifu Chen, Xiaoyu Xu, Zhuoxiang Ren   +5 more
doaj   +1 more source

2W/nm Peak-power All-Fiber Supercontinuum Source and its Application to the Characterization of Periodically Poled Nonlinear Crystals

, 2007
We demonstrate a uniform high spectral brightness and peak power density all-fiber supercontinuum source. The source consists of a nanosecond Ytterbium fiber laser and an optimal length PCF producing a continuum with a peak power density of 2 W/nm and ...
B.A. Cumberland, Demircan, Dudley, Dudley, Dunsby, Fei, Genty, Hsiung, J.C. Travers, J.R. Taylor, Jones, Knight, Kudlinski, R.E. Kennedy, Rakich, Ranka, S.V. Popov, Travers, Wadsworth   +18 more
core   +1 more source

Control Strategy for Hybrid Magnetic Bearing Based on Improved Cascaded Reduced-Order Active Disturbance Rejection Controller

CES Transactions on Electrical Machines and Systems
During the startup of the hydraulic turbine generators, the hybrid magnetic bearing support system exhibits displacement fluctuations, and the nonlinearity and strong coupling characteristics of the magnetic bearings limit the accuracy of rotor modeling,
Kaiyu Shan, Ke Wang, Wei Zhang, Yuxiang Zhu, Lu Zhao, Jinquan Zhu   +5 more
doaj   +1 more source

Reduction of Device Operating Temperatures with Graphene-Filled Thermal Interface Materials

C, 2021
The majority of research into few layer graphene (FLG) thermal interface materials (TIM) concerns the direct quantification of innate composite properties with much less direct analysis of these materials in realistic applications.
Jacob S. Lewis
doaj   +1 more source

Sound Power Density Fields [PDF]

The Journal of the Acoustical Society of America, 1942
A theoretical study of the sound power density field radiated from a simple source, a doublet source, a single point source before a totally reflecting plane (free as well as rigid), and a piston vibrating in an infinite fixed wall have been investigated.
J. H. Enns, F. A. Firestone
openaire   +1 more source

Improving the Evaluation and Management of Transfusion‐Related Iron Overload in Children, Adolescents, and Young Adults Following Cancer Treatment or Hematopoietic Stem Cell Transplantation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Transfusion‐related iron overload (TRIO) is a late effect of therapy impacting survivors of childhood cancer and hematopoietic stem cell transplantation (HSCT) who receive frequent packed red blood cell (pRBC) transfusions. Surprisingly, there are no accepted guidelines to assist providers in identifying and treating at‐risk ...
Luke Gingell, Allison Close, Guoli Zhou, Troy C. Quigg   +3 more
wiley   +1 more source

Coupling Model and Early-Stage Internal Short Circuits Fault Diagnosis for Gel Electrolyte Lithium-Ion Batteries

Batteries
This paper presents a method for modeling and predicting ISC in gel-electrolyte lithium-ion batteries, addressing critical safety concerns in electric vehicles.
Liye Wang, Jinlong Wu, Chunxiao Ma, Xianzhong Sun, Lifang Wang, Chenglin Liao   +5 more
doaj   +1 more source

A 2023 update on the performance of ionic-liquid proton-exchange-membrane fuel cells

Frontiers in Energy Research, 2023
A mini-review is provided of the literature concerning the performance of proton-exchange-membrane fuel cells (PEMFCs) containing (immobilized) ionic liquids as possible electrolytes, focusing on papers reporting performance metrics (power and current ...
Allan L. L. East, Cuong M. Nguyen, Rolf Hempelmann   +2 more
doaj   +1 more source

Understanding redshift space distortions in density-weighted peculiar velocity

, 2016
Observations of the kinetic Sunyaev-Zel'dovich (kSZ) effect measure the density-weighted velocity field, a potentially powerful cosmological probe. This paper presents an analytical method to predict the power spectrum and two-point correlation function ...
Okumura, Teppei, Spergel, David N., Sugiyama, Naonori S.   +2 more
core   +1 more source