Results 161 to 170 of about 8,473 (273)

Integrated Dynamic Modeling and Ground Test Validation for Spacecraft Micro-Vibration Suppression Considering Disturbance, Isolation, and Pointing Control. [PDF]

Sensors (Basel)
Wang H, Yan H, Tian L, Zang X, Zu Y.
europepmc   +1 more source

Temporal and Cell‐Specific Regulation of Synaptic Homeostasis by the Chromatin Remodeler Chd1

Advanced Science, Volume 13, Issue 33, 15 June 2026.
Chd1, the Drosophila homologue of mammalian CHD2 ‐ a gene linked to autism, epilepsy, and intellectual disability, is required for synaptic homeostatic plasticity. Chd1 in glia is necessary for the rapid induction of synaptic homeostasis, whereas Chd1 in motoneurons, muscle, and glia is critical for long‐term maintenance.
Danielle T. Morency, Tao Cui, Yimei Cai, Chloe Lok, Rachel E. Nokku, Ruoxian Huang, Grace L. Chu, Yumeng Xie, Saleem W. Abu‐Tayeh, Kaikai He, Chengjie Qiu, Junyi Wang, Paxton M. Paganelli, Ting Wang, Gabrielle Williams, Sreejith Nair, Huadong Pei, Dion K. Dickman, Stefano Vicini, Tingting Wang   +19 more
wiley   +1 more source

Multivariate Frequency and Amplitude Estimation for Unevenly Sampled Data Using and Extending the Lomb-Scargle Method. [PDF]

Sensors (Basel)
Seilmayer M, Wondrak T, Garcia F.
europepmc   +1 more source

Single‐Atom Pt Anchoring on Self‐Doped ZrO2@G‐C3N4 Nanostructure Enables Efficient Photocatalytic Seawater Hydrogen Evolution

Advanced Science, Volume 13, Issue 34, 19 June 2026.
Grain‐like Zr3+‐ZrO2 and Pt single atoms are integrated into an S‐scheme Zr3+‐ZrO2@g‐C3N4 heterostructure to enable efficient visible‐light‐driven seawater hydrogen production. The combined effect of Pt single‐atom sites and the S‐scheme charge‐transfer pathway accelerates carrier separation, preserves strong redox ability, and markedly enhances ...
Hezheng Sun, Yifan Guo, Xin Yu, Yajie Tian, Feng Gao, Bin Wang, Yanting Tang, Dani S. Assi, Vellaisamy A. L. Roy   +8 more
wiley   +1 more source

Novel Recursive Discrete Fourier Transform with Compact Architecture

, 2014
在本篇論文，我們提出一新的遞迴方式來計算離散傅利葉轉換，我們提出的遞迴結構的優點有減少迴圈數以及比已知的Goertzel所提出的方法有較高的信號量化雜訊比(SQNR)。在此Goertzel的方法需要N2個乘法器及2N2個加法器。 由Goertzel所提出的方法雖然比直接方式較有效率，但它的計算數仍然正比於N2。其他相關的遞迴演算法，例如DFR-DFT及FFR-DFT，分別需要2N2個以及N2個迴圈數來計算所有傅利葉轉換輸出X[k]。 對於減少計算量的目的 ...
蘇國安
core  

Direct FFT oversampling without zero-padding. [PDF]

Sci Rep
Donciu C, Temneanu MC, Serea E.
europepmc   +1 more source

Diffusion‐Driven Targeted Passivation of Selenium Vacancies via an I‐Doped CdS Buffer Layer for Efficient Sb2Se3 Solar Cells

Advanced Science, Volume 13, Issue 31, 4 June 2026.
Iodine incorporation into the CdS buffer layer induces spontaneous anion diffusion and selectively passivates selenium vacancies in Sb2Se3 absorbers. The formation of low‐energy, charge‐neutral ISe defects effectively suppresses non‐radiative recombination, resulting in a substantially enhanced open‐circuit voltage and boosting the device efficiency to
Luyan Shen, Deyang Qin, Er Nie, Jiahua Tao, Hidefumi Akiyama, Junhao Chu, Shaoqiang Chen   +6 more
wiley   +1 more source

POSSIBILITIES OF APPLICATION OF DISCRETE FOURIER TRANSFORM

U radu je obrađena i opisana diskretna Fourierova transformacija. Definirana je diskretna Fourierova transformacija, njen inverz te DFT matrica. Fourierovom analizom također su analizirane valne duljine te se primjenio postupak direktnog računanja DFT-a.
Kotromanović, Josip
core  

SpecFlu-Net: A frequency-aware neural architecture with temporal-dependency optimization for long-term seasonal influenza transmission forecasting. [PDF]

Infect Med (Beijing)
Feng T, Huang Y, Luo C.
europepmc   +1 more source

Electron Delocalization Induced by 3d–4f Orbital Hybridization of Co─Ce Atom Pairs Toward Enhanced Electromagnetic Wave Attenuation and Antibacterial Performance

Advanced Science, Volume 13, Issue 31, 4 June 2026.
Co─Ce dual atomic configuration anchored on the surface of NC matrix has been constructed to regulate the local electron structure. The higher occupied states induced by the Co 3d‐Ce 4f orbital hybridization facilitate the formation of polarized electric fields, which in turn strengthens the polarization relaxation and partially repairs the effective ...
Da Li, Yinyin Zhao, Yang Zhang, Cui Ni, Xiaoguang Zhao, Chongchang Zhou, Guoqiang Ren, Pengfei Liu, Xiubo Xie   +8 more
wiley   +1 more source