Results 41 to 50 of about 227,325 (292)

Current Trends in the Development of Microwave Reactors for the Synthesis of Nanomaterials in Laboratories and Industries: A Review

Crystals, 2018
Microwave energy has been in use for many applications for more than 50 years, from communication, food processing, and wood drying to chemical reactions and medical therapy.
Sylwia Dąbrowska, Tadeusz Chudoba, Jacek Wojnarowicz, Witold Łojkowski   +3 more
doaj   +1 more source

NEW TYPE ELECTRONIC DEVICE - GYROTON ON A CORRUGATED RESONATOR [PDF]

Радиофизика и электроника, 2017
The article describes a new type electronic device - gyroton on a corrugated resonator. In this device there is no spatial grouping of the electron beam, but it is possible to achieve a high conversion factor of the power of the electron beam into the ...
S. V. Kolosov, A. A. Kuraev, I. E. Zaitseva   +2 more
doaj   +1 more source

Nonlinear behavior and mode coupling in spin transfer nano-oscillators

, 2014
By investigating thoroughly the tunable behavior of coupled modes, we highlight how it provides new means to handle the properties of spin transfer nano-oscillators.
Araujo, Flavio Abreu, Cros, Vincent, Fukushima, Akio, Grollier, Julie, Kubota, Hitoshi, Lebrun, Romain, Locatelli, Nicolas, Tsunegi, Sumito, Yakushiji, Kay, Yuasa, Shinji   +9 more
core   +1 more source

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Design of an ultrashort H‐plane coupler without transition structure for sheet beam traveling‐wave tube amplifier at W‐band

Electronics Letters, 2023
An ultrashort H‐plane sheet beam traveling‐wave tube (SB‐TWT) coupler without transition structure is proposed. The coupler adopts a new idea of directly coupling the microwave from H‐plane of the slow‐wave circuit (SWC) and optimizes the matching by ...
Zheng Guo, Changqing Zhang, Jun Cai, Jinjun Feng   +3 more
doaj   +1 more source

Reconfigurable optomechanical circulator and directional amplifier

, 2017
Non-reciprocal devices, which allow the non-reciprocal signal routing, serve as the fundamental elements in photonic and microwave circuits and are crucial in both classical and quantum information processing.
Chen, Yuan, Dong, Chun-Hua, Guo, Guang-Can, Shen, Zhen, Sun, Fang-Wen, Zhang, Yan-Lei, Zou, Chang-Ling, Zou, Xu-Bo   +7 more
core   +2 more sources

Nanodiamond Quantum Sensors for Probing Free Radical Biology

Advanced Functional Materials, EarlyView.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +1 more source

High-speed and broadband $$\upmu$$ μ TP-heterogeneously integrated InGaAs/GaAsSb photodetectors for next-generation optical interconnects

PhotoniX
As communication rates continue to increase and wavelength-division multiplexing (WDM) becomes ubiquitous, the conventional fiber-optic O and C bands no longer suffice.
Yan Liang, Yuxuan Wang, Faran Chang, Guanyu Li, Wenguang Zhou, Xiangbin Su, Xiaochen Li, Dongwei Jiang, Donghai Wu, Guowei Wang, Guang Qian, Yingqiang Xu, Zhichuan Niu, Youdou Zheng, Yi Shi   +14 more
doaj   +1 more source

Effects of [Zn_0.5Si_0.5]³⁺ Substitution on Microwave Dielectric Properties of ZnAl_2-x(Zn_0.5Si_0.5)_xO₄ Ceramics

Crystals
Microwave dielectric ceramics are indispensable in modern communication technologies, playing a pivotal role in components such as filters, oscillators, and antennas.
Xuekai Lan, Bairui Chen, Huatao Tang, Changzhi Yin, Bin Tian, Wen Lei   +5 more
doaj   +1 more source

A compact differential branch‐line coupler using folded substrate integrated suspended parallel strip line

Electronics Letters, 2023
This letter presents a compact fully differential branch‐line coupler. It is composed of folded substrate integrated suspended parallel strip line (SISPSL), which can generate slow‐wave effect and help reduce the circuit size.
Huajiao Shen, Yongqiang Wang, Fanyi Meng, Kaixue Ma   +3 more
doaj   +1 more source