Results 71 to 80 of about 7,095 (298)

Research on high reliability detection of wideband oscillation signal in power system

Diance yu yibiao
Aiming at the problem of multi-target oscillating signal detection in the range of 2.5 Hz～300 Hz in wideband measurement for novel power system, the design method of detection algorithm with high reliability (extremely low false detection rate) as the ...
WANG Zebin, WANG Fuping, PEI Maolin, HUANG Songling, ZHAO Wei   +4 more
doaj   +1 more source

Long-range temporal correlations of broadband EEG oscillations for depressed subjects following different hemispheric cerebral infarction [PDF]

, 2017
Abnormal long-range temporal correlation (LRTC) in EEG oscillation has been observed in several brain pathologies and mental disorders. This study examined the relationship between the LRTC of broadband EEG oscillation and depression following cerebral ...
Dongzhe Hou, Yuanyuan Chen, Hou, Dongzhe, Chen, Yuanyuan, du, Jingang, Weijie Wang, Wang, Weijie; id_orcid, Chunfang Wang, Jingang Du, Wang, Chunfang   +9 more
core   +1 more source

High‐Power Terahertz Emission from Picosecond Nano‐Plasma Switching Driven by Secondary Electron Emission Avalanche

Advanced Science, EarlyView.
A nano‐plasma device enables watt‐level on‐chip THz generation through picosecond switching triggered by secondary electron emission avalanche. An ultra‐dense electron sheet initiates nano‐plasma formation within a ∼100 nm gap, driving rapid energy release into an integrated resonator.
Guangyu Sun, Mohammad Rezaei, Yuheng Hu, Guan‐Jun Zhang, Elison Matioli   +4 more
wiley   +1 more source

Stable LiF:F$\text{}_{2}^{+}$ Color Center Laser Oscillation at Room Temperature

, 1998
An LiF:F$\text{}_{2}^{+}$ color center laser using a two-mirror cavity is reported. The LiF:F$\text{}_{2}^{+}$ laser was achieved by creating the F$\text{}_{2}^{+}$ centers through the photoionization of the F$\text{}_{2}$ color centers at room ...
Tsuboi, T.
core   +1 more source

Broadband optical chaos for stimulated Brillouin scattering suppression in power over fiber [PDF]

, 2011
Broadband chaos generated in an optically injected semiconductor laser is applied for power-over-fiber transmission. By varying the injection power, period-one oscillation, period-two oscillation, and chaotic oscillation are observed in the injected ...
Wong, KKY, Qing Liu, Fu, X, Liu, Q, Xuelei Fu, Chan, SC, Kenneth Kin-Yip Wong, Sze-Chun Chan   +7 more
core   +1 more source

Ultrabroadband and Highly Sensitive Short‐Wave Infrared Molecular Fingerprinting via Acoustic MXene Plasmons

Advanced Science, EarlyView.
Acoustic plasmons in Ti3C2Tx MXene strongly compress infrared electromagnetic fields and enhance light–matter interactions at the nanoscale. This platform couples broadband plasmon excitations with molecular vibrations, enabling simultaneous sensing of high‐ and low‐frequency vibrational modes in ultrathin PMMA and graphene oxide films, and extending ...
Changhoon Park, Jisung Kwon, Nu‐Ri Park, Hyerim Kim, Hyeju Kim, Yury Gogotsi, Chong Min Koo, Myung‐Ki Kim   +7 more
wiley   +1 more source

Broadband Signal Measurement Method in the Background of Power Electronics in Substation Area of Distribution Network

IEEE Access
With the development and application of power electronic devices in distribution stations, the power grid has frequent broadband oscillations, with characteristics such as a wide frequency range and multiple modal components, etc.
Lina Liu, Tao Wang, Ruichao Li, Kun Liu, Xiaojun Li, Ming Qu, Fangshuo Li   +6 more
doaj   +1 more source

Fano resonances of dielectric gratings: Symmetries and broadband filtering

, 2015
© 2015 Optical Society of America. The guided mode resonances (GMRs) of diffraction gratings surrounded by low index materials can be designed to produce broadband regions of near perfect reflection and near perfect transmission.
Botten, LC, Sturmberg, BCP, De Sterke, CM, McPhedran, RC, Dossou, KB   +4 more
core   +1 more source

Helical Electron Beam Micro‐Bunching by High‐Order Modes in a Micro‐Plasma Waveguide

Advanced Science, EarlyView.
ABSTRACT Electron acceleration by a high‐power Laguerre‐Gaussian pulse in a micro‐plasma waveguide is investigated. When the incident laser travels in the waveguide, electrons on the wall are extracted into the vacuum core and accelerated by the longitudinal field of the waveguide mode.
Xingju Guo, Longqing Yi
wiley   +1 more source

A Review of Data-Model Hybrid-Driven Early Warning Research for Wideband Oscillation Risks in Power Systems

Applied Sciences
The problem of power system oscillation stability has become more and more prominent in the context of a high proportion of new energy sources and the gradual increase in power electronic devices.
Hong Fan, Mingze Sun
doaj   +1 more source