Results 211 to 220 of about 112,216 (344)

Research on a Miniaturized Digital Servo System for Passive Hydrogen Masers. [PDF]

Sensors (Basel)
Guo S, Cao M, Chen P, Shuai T, Hu W, Pei Y.   +5 more
europepmc   +1 more source

Evolutionary Optimization of Microwave Filters

, 2011
Maria José Pereira Dantas, S. Adson, Ciro J. A. Macedo, Leonardo da Cunha Brito, P.C.M. Machado, Paulo H. P. de Carvalho   +5 more
openalex   +2 more sources

Stress‐to‐Light Conversion in an Earth‐Abundant Oxide Semiconductor

Advanced Science, EarlyView.
Stress‐to‐light conversion in solids represents a unique photonic functionality, yet it has never been realized in a chemically simple and sustainable material. Here, we show that sustainable semiconductor ZnO exhibits strong near‐infrared (NIR) luminescence under elastic stress when defect‐engineered to stabilize the p‐type state.
Tomoki Uchiyama, Koki Otonari, Reona Omori, Guangfa Yang, Eiji Nishibori, Ying Chen, Xu‐Guang Zheng, Chao‐Nan Xu   +7 more
wiley   +1 more source

High selective SIW bandpass filter with flexible bandwidth and transmission zero for 5G application. [PDF]

Sci Rep
Mishra GK, Pandey HK, Pathak NP.
europepmc   +1 more source

High-Q microwave photonic filter with self-phase modulation spectrum broadening and third-order dispersion compensation

, 2014
Dan Zou, Xiaoping Zheng, Shangyuan Li, Hanyi Zhang, Bingkun Zhou   +4 more
openalex   +1 more source

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, EarlyView.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

Driving Hydrolysis and Acetolysis of Poly(ethylene terephthalate) (PET) by Microwave and Thermal Energy Inputs: A Comparative Study. [PDF]

ACS Omega
Pereira P, Daniszewski AC, Staack M, Salmanzadeh E, Toraman HE, Hu J, Pester CW, Savage PE.   +7 more
europepmc   +1 more source

A band-pass microwave filter in high-temperature superconducting films

, 2005
V.M. Pan, V. F. Tarasov, N. A. Skorik, S. I. Futimsky   +3 more
openalex   +1 more source

Enhancing Biogenic Formic Acid Production in the Modified OxFA Process by Acetonitrile Addition

Advanced Science, EarlyView.
In this study, the beneficial effect of using acetonitrile as a co‐solvent in the modified OxFA process is shown, outperforming methanol, demonstrating improved reaction kinetics combined with high selectivity for the HPA‐2 (H5PV2Mo10O40) catalyzed oxidation of xylose to FA.
Jan‐Dominik H. Krueger, Pegah Saedi, Maximilian J. Poller, Alberto Collauto, Jason P. Hallett, David Robinson, Maxie M. Roessler, Jakob Albert   +7 more
wiley   +1 more source

Coherent microwave comb generation via the Josephson effect. [PDF]

Nat Commun
Greco A, Ballu X, Giazotto F, Crippa A.
europepmc   +1 more source