Results 21 to 30 of about 2,026,776 (294)

Research on the Withstand Voltage Properties of Cr/Mn-Doped Al₂O₃ Ceramics in Vacuum

Electronic Materials
Al2O3 ceramics are widely used in vacuum electronic devices. However, surface flashover in a vacuum during the application of high voltage significantly influences their reliability and restricts the development of vacuum electronic devices.
Dandan Feng, Xiaojing Wang, Xueying Han, Zhiqiang Yu, Jialun Feng, Hefei Wang   +5 more
doaj   +1 more source

Coexistence of multiuser entanglement distribution and classical light in optical fiber network with a semiconductor chip

Chip
Building communication links among multiple users in a scalable and robust way is a key objective in achieving large-scale quantum networks. In a realistic scenario, noise from the coexisting classical light is inevitable and can ultimately disrupt the ...
Xu Jing, Cheng Qian, Xiaodong Zheng, Hu Nian, Chenquan Wang, Jie Tang, Xiaowen Gu, Yuechan Kong, Tangsheng Chen, Yichen Liu, Chong Sheng, Dong Jiang, Bin Niu, Liangliang Lu   +13 more
doaj   +1 more source

Microwave Magnetoelectric Devices

Advances in Condensed Matter Physics, 2012
Tunable microwave magnetoelectric devices based on layered ferrite-ferroelectric structures are described. The theory and experiment for attenuator, band-pass filter and phase shifter are presented.
A. S. Tatarenko, M. I. Bichurin
doaj   +1 more source

Photo-devices for optical controlling of microwave circuits

Journal of Telecommunications and Information Technology, 2001
The most important optical devices which can be used for controlling microwave circuits will be presented in the paper. The performance and the parameters of the devices such as semiconductor microwave optoelectronic switches, photodiodes and ...
Zenon R. Szczepaniak, Bogdan A. Galwas
doaj   +1 more source

Ridge Gap Waveguide Based Liquid Crystal Phase Shifter

IEEE Access, 2020
In this paper, the gap waveguide technology is examined for packaging liquid crystal (LC) in tunable microwave devices. For this purpose, a line based passive phase shifter is designed and implemented in a ridge gap waveguide (RGW) topology and filled ...
Matthias Nickel, Alejandro Jimenez-Saez, Prannoy Agrawal, Ahmed Gadallah, Andrea Malignaggi, Christian Schuster, Roland Reese, Henning Tesmer, Ersin Polat, Dongwei Wang, Peter Schumacher, Rolf Jakoby, Dietmar Kissinger, Holger Maune   +13 more
doaj   +1 more source

Graphene‐Based Microwave Metasurfaces and Radio‐Frequency Devices

Advanced Photonics Research, 2021
Graphene, as a 2D material, has attracted significant attention due to its particular electronic band structure and unique physical properties. Metasurfaces integrated with graphene hold great promise for dynamic manipulation of the electromagnetic waves,
Jin Zhang, Weiren Zhu
doaj   +1 more source

Multi-mode coupling wave theory for helically corrugated waveguide [PDF]

, 2012
Helically corrugated waveguide has been used in various applications such as gyro-backward wave oscillators, gyro-traveling wave amplifier and microwave pulse compressor.
Ronald K, Donaldson CR, He, Wenlong, Young, Alan R., Whyte, Colin G., Robertson, Craig W., Phelps ADR, Phelps, Alan D. R., Zhang L, Ronald, Kevin, Craig R. Donaldson, Kevin Ronald, Whyte CG, Young AR, Liang Zhang, Cross AW, Zhang, Liang, Donaldson, Craig R., Colin G. Whyte, Adrian W. Cross, Alan R. Young, He W, Robertson CW, Craig W. Robertson, Cross, Adrian W., Wenlong He, Alan D. R. Phelps   +26 more
core   +1 more source

Generation of optical microwave signals using laser diodes with enhanced modulation response for hybrid radio/fiber systems [PDF]

, 2001
The authors present the idea of using a laser with improved modulation bandwidth to generate microwave optical signals for hybrid radio/fibre systems. External light injection has been used to enhance the frequency response of the laser and thus greatly ...
Anandarajah, Prince M., Barry, Liam P., Kaszubowska-Anandarajah, Aleksandra, L.P. Barry, A. Kaszubowska, P. Anandarajah   +5 more
core   +2 more sources

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

Molecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka, Wioleta Cieślik, Wojciech Płaziński, Katarzyna Stępnik, Anna Boguszewska‐Czubara, Elżbieta Kot, Robert Musioł, Mateusz Jasica, Anna Mrozek‐Wilczkiewicz, Katarzyna Malarz   +9 more
wiley   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source