Results 161 to 170 of about 66,276 (316)

On the Sign and Magnitude of the Coefficients in the Fourier Series, the Sine Series and the Cosine Series [PDF]

, 1919
K. Ogura
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Rate‐Adaptive Site Transformation Catalyst for Parallel Water Dissociation and Hydrogen Adsorption in Alkaline Hydrogen Evolution

Advanced Functional Materials, EarlyView.
This work presents a rate‐adaptive site transformation strategy in Ag‑ethylenediamine intercalated Co9S8, which not only enables parallel water dissociation and H* adsorption, but also allows the catalyst to provide more active sites under high demand, removing a major bottleneck. The catalyst achieves a record current density of 4.2 A cm−2@2.0 V, with
Yongqi Ye, Yuzhuo Jiang, Bin Tian, Derek Ho   +3 more
wiley   +1 more source

On the real zeroes of half-integral weight Hecke cusp forms. [PDF]

Math Ann
Jääsaari J.
europepmc   +1 more source

On the Fourier Coefficients of High-Dimensional Random Geometric Graphs [PDF]

Kiril Bangachev, Guy Bresler
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Polymer Network Modified Perovskite for High‐Performance Pure Blue Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
A polymer network of poly(4‐vinylphenol) (PVPh) is introduced to improve pure blue perovskite light‐emitting diodes. PVPh effectively passivates defects, enhances film morphology, reduces lattice strain, and suppresses ion migration. These effects lead to record device performance, achieving 9.82% external quantum efficiency and stable blue emission at
Zhongkai Yu, Jiawei Hong, Jiaxin Song, Zihao Ren, Ke Zhou, Shengnan Liu, Minhui Yu, Yue Xu, Minjeong Ha, Yongbin Hua, Baodan Zhao, Bo Ram Lee   +11 more
wiley   +1 more source

PCA whitening improves the illumination tolerance for visual place recognition with Fourier signatures. [PDF]

Sci Rep
Offermann L.
europepmc   +1 more source

The distribution of Fourier coefficients of cusp forms over sparse sequences [PDF]

, 2014
Huixue Lao, Ayyadurai Sankaranarayanan
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Revealing the Hidden Role of Cd in p‐Type Mg3Sb2: Enhanced Thermoelectric Performance by Grain Boundary Segregation Engineering

Advanced Functional Materials, EarlyView.
The hidden role of Cd segregation at grain boundaries is revealed in p‐type Mg3Sb2 by atom probe tomography and other advanced characterizations. Grain boundary Cd enrichment suppresses the SbMg+ hole‐killer formation and lowers potential barriers, enhancing electrical conductivity.
Zhou Li, Deming Dong, Xiaoyu Yang, Jun Qian, Mengruizhe Kong, Han Wan, Ni Ma, Wei Bai, Pengfei Nan, Binghui Ge, Jiming Song, G. Jeffrey Snyder, Yuan Yu   +12 more
wiley   +1 more source

Graphical Fourier-coefficient analysis as a paper-based method for teaching structure factors. [PDF]

Acta Crystallogr E Crystallogr Commun
Weirich TE.
europepmc   +1 more source

Multiplicativity of Fourier coefficients of Maass forms for $\operatorname{SL}(n,\mathbb{Z})$

Dorian Goldfeld, Eric Stade, Michael Woodbury   +2 more
openalex   +1 more source