Results 141 to 150 of about 1,805,271 (277)

Super-Nyquist asteroseismology with the Kepler Space Telescope

, 2013
Barycentric corrections made to the timing of Kepler observations, necessitated by variations in light arrival time at the satellite, break the regular time-sampling of the data -- the time stamps are periodically modulated. A consequence is that Nyquist
Kurtz, Donald W., Murphy, Simon J., Kurtz, Donald Wayne, Simon J. Murphy, Shibahashi, Hiromoto, Hiromoto Shibahashi, Donald W. Kurtz   +6 more
core   +1 more source

Biodegradable Zn‐Based Implants: Progress, Challenges, and Pathways toward Clinical Translation

Advanced Science, EarlyView.
Exploring biodegradable Zn‐based implants offers a promising pathway to next‐generation biomedical devices with balanced degradation and biocompatibility. A comprehensive overview of biodegradable Zn‐based implants, covering their biological significance, material design principles, and advanced engineering strategies is provided.
Panfeng Zhao, Zhengquan Wang, Hui Yang, Xiyuan Zhang, Hanyuan Liu, Xiaotong Lu, Xiaocheng Li, Yanyan Liu, Xi Zhao, Wenhao Zhou, Yufeng Zheng   +10 more
wiley   +1 more source

Micro‐Galvanic Coupling Programs the Therapeutic Zinc Ion Window to Reconfigure Immune Cascades for Pro‐Regenerative Bone Healing

Advanced Science, EarlyView.
This study utilized alloy micro‐galvanic coupling design to regulate the release of essential elements, thereby programming immune responses and promoting regeneration. The sacrificial anodic process of Zn‐0.8Mg reduced Zn2+ release compared to the “large cathode‐small anode” coupling of Zn‐0.8Fe.
Chaoyang Sun, Bo Jia, Jiahui Shi, Shuang Li, Guo Bao, Dong Bian, Kai Chen, Junlong Tan, Xuenan Gu, Yan Guan, Yu Qin, Xinhua Qu, Xiaogang Wang, Yufeng Zheng, Hongtao Yang   +14 more
wiley   +1 more source

Influence of laser surface hardening on corrosion properties of Al-Zn-Si cast alloy

Metalurgija, 2017
This work is focused on the effect of the laser surface treatment (laser power 50 and 80 W) on microstructure and corrosion properties of self-hardened AlZn10Si8Mg cast alloy used for engine and vehicle constructions.
E. Tillová, L. Kuchariková, M. Chalupová, J. Belan, A. Vaško, I. Švecová   +5 more
doaj  

3D‐Mixer‐Assisted High‐Entropy Doping of LiNiO2 for Co‐Free Ni‐Rich Cathodes in Lithium‐Ion Batteries

Advanced Science, EarlyView.
High‐entropy doping of Co‐free Ni‐rich LiNiO2 cathodes is achieved through a scalable 3D mixing process. Multi‐element incorporation stabilizes the layered structure, alleviates Li/Ni disorder and electrode swelling, and enhances cycling stability. This approach underscores the potential of high‐entropy strategies to deliver structurally robust and ...
Seung Ri Kim, Thillai Govindaraja Senthamaraikannan, Jun Jae Myeong, Hyung Do Kim, Dong‐Hee Lim, Eun Mi Kim, Sang Mun Jeong   +6 more
wiley   +1 more source

Super Sub-Nyquist Single-Pixel Imaging by Means of Cake-Cutting Hadamard Basis Sort. [PDF]

Sensors (Basel), 2019
Yu WK.
europepmc   +1 more source

Metal Ion‐Induced Fast Gelation of 2D MnO2 Nanosheets With Cationic Vacancies for Durable Aqueous Zinc‐Ion Batteries

Advanced Science, EarlyView.
We report Mn‐deficient aerogels by inducing the first gelation of MnO2 nanosheets in solution using divalent metal ions as crosslinking agents, thereby inhibiting nanosheet restacking and enhancing surface utilization. Benefiting from abundant Mn vacancies and 3D porous structures, the A‐MnO2 cathode exhibits improved conductivity, fast reaction ...
Yalei Wang, Xinyu Huang, Shulong Chang, Bowen Li, Caichao Ye, Feng Yang, Yahui Xue   +6 more
wiley   +1 more source

Polynomial Root Finding on Frequency Estimation with Sub-Nyquist Temporal Sampling

Journal of Measurement Science and Instrumentation, 2011
This paper addresses an algebraic approach for wideband frequency estimation with sub-Nyquist temporal sampling.Firstly,an algorithm based on double polynomial root finding procedure to estimate aliasing frequencies and joint aliasing frequencies-time ...
Hai-jie SHI, Zhi-guo GUI, Quan ZHANG
doaj  

Wideband Spectrum Sensing Based on Single-Channel Sub-Nyquist Sampling for Cognitive Radio. [PDF]

Sensors (Basel), 2018
Liu C, Wang H, Zhang J, He Z.
europepmc   +1 more source

Ambiente di test per generazione e misure di segnali wireless [PDF]

, 2011
Il lavoro si compone di due parti. Nella prima si descrive la realizzazione di un modulo software che rappresenta un vero e proprio “editor” per la costruzione di un segnale composito attraverso un generatore di forme d’onda arbitrario a radiofrequenza.
Brunelli, Davide
core