Results 91 to 100 of about 7,095 (298)

Full‐Stack Architectures for Intelligent Brain‐Computer Interfaces

Advanced Science, EarlyView.
System‐level overview of brain–computer interfaces (BCIs), illustrating the integration of neural signal acquisition, wireless transmission, and adaptive decoding. Advanced electrode, tissue interfaces, energy‐efficient communication, and robust algorithms collectively enable stable signal quality, real‐time processing, and closed‐loop operation ...
Hee Kyu Lee, Hyun Bin Kim, Sang Uk Park, Janghoon Joo, Jinhong Min, Geumbee Lee, Joohoon Kang, Hyoyoung Jeong, Jae‐Young Yoo, Sang Min Won   +9 more
wiley   +1 more source

A Method for Locating Wideband Oscillation Disturbance Sources in Power Systems by Integrating TimesNet and Autoformer

The large-scale integration of new energy generators into the power grid poses a potential threat to its stable operation due to broadband oscillations. The rapid and accurate localization of oscillation sources is fundamental for mitigating these risks.
Huan Yan, Shilin Gao, Zongsheng Zheng, Keqiang Tai, Mengchen Liu, Yunzhang Yang, Yuhong Wang, Zhe Wang, Xu Zhou   +8 more
core   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

Advanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh, Ki‐bum Lee, Junghyeon Lee, Seunghee Cho, Malkeshkumar Patel, Hangfei Li, Yu Wen, Ye Zhou, Joondong Kim   +8 more
wiley   +1 more source

Power Transmission Limits Assessment on PCC of Grid-connected Wind Power Based on Nodal Electromagnetic Transient Thevenin Equivalence

Taiyuan Ligong Daxue xuebao
Purposes Transmission power limit exists in point of common coupling (PCC) of grid-connected wind power, when the transmission power exceeds the limit, it may lead to voltage instability and broadband oscillation problems, threatening the safety and ...
GUO Xiaolong, KANG Pengpeng, SONG Pengfei, CHEN Wuhui, KANG Jiale   +4 more
doaj   +1 more source

Transient Spin Density Wave Order Induced in the Normal State of BaFe2As2 by Coherent Lattice Oscillations

EPJ Web of Conferences, 2013
We trace the ultrafast dynamics of the spin density wave gap of the pnictide system BaFe2As2 probing resonantly with broadband multi-terahertz pulses. The photoexcitation in the low-temperature ground state leads to a fast suppression of the spin order ...
Bernhard C., Porer M., Wolf T., Beyer M., Schäfer H., Pashkin A., Kim K. W., Demsar J., Huber R., Leitenstorfer A.   +9 more
doaj   +1 more source

Network Asynchrony Underlying Increased Broadband Gamma Power.

, 2021
Synchronous activity of cortical inhibitory interneurons expressing parvalbumin (PV) underlies expression of cortical γ rhythms. Paradoxically, deficient PV inhibition is associated with increased broadband γ power in the local field potential. Increased
João Pereira Leite (12098831), Marie Carlén (89778), Kim Hoseok (18658156), Leonardo Rakauskas Zacharias (19869621), Nicolas Gustavo Guyon (18658159), Cleiton Lopes-Aguiar (127509), Eliezyer Fermino de Oliveira (19869648)   +6 more
core  

Stress Accumulation Induced by Ion Exchange for Synchronous Modulation of Mode and Wavelength in Microlasers

Advanced Science, EarlyView.
This work demonstrates a paradigm‐shifting strategy to simultaneously achieve broadband wavelength tunability and single‐mode control within a single perovskite microwire structure. Using a facile heating‐assisted solid–solid anion‐exchange strategy, we synthesized phase‐pure CsPbClxBr3‐x microwires that exhibit the widest reported continuous lasing ...
Bingwang Yang, Lingling Sun, Jinhui Wang, Jitao Li, Peng Wan, Daning Shi, Caixia Kan, Mingming Jiang   +7 more
wiley   +1 more source

Bending‐Induced Vibrational Landscape Reorganization Governs Energy Dissipation in Perylene Bisimides

Angewandte Chemie, EarlyView.
Gradually bent perylene bisimides (PBIs) isolate structural distortion as the sole variable and exhibit negligible intersystem crossing, uncovering rapid vibrational dephasing as the dominant driver of internal conversion through excited‐state vibrational landscape reorganization.
Wei Zhang, Di Zhao, Byeongjoo Kang, Hui‐Jun Zhang, Yeonju Park, Young Mee Jung, Woojae Kim, Jianbin Lin, Dongho Kim   +8 more
wiley   +2 more sources

Stability Analysis Method of a Hierarchical Control Structure Microgrid Based on a Small-Signal Model and Hopf Bifurcation Theory

International Journal of Electrical Power & Energy Systems
To the oscillation and stability problem caused by multi-scale and broadband electromagnetic dynamics among many isomerized power electronic devices in a microgrid, a small-signal model of hierarchical control structure microgrid and stability analysis ...
Xusheng Yang, Wei Chen, Lizhen Wu, Jiying Tuo, Nan Qiu   +4 more
doaj   +1 more source

The Cause and Eliminate Method of Self-excited Oscillation in Long Cable Amplifier Circuits

MATEC Web of Conferences, 2018
SMA long cable distributed capacitance is easy to trigger broadband amplifier circuit’s self-oscillation. In this study we design an amplifier circuit based on OPA691 chip, discuss the influence of long cable’s distributed capacitance, then prompt a ...
Wang Can, Huang Ming, Peng Zhaomin, Cui Jinbao   +3 more
doaj   +1 more source