Results 31 to 40 of about 64,211 (268)

Effect of terahertz irradiation on DNA damage repair in living cells

FEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno, Shota Yamazaki, Hiromichi Hoshina, Masahiko Harata   +3 more
wiley   +1 more source

X band bifrequency coaxial relativistic backward wave oscillator

AIP Advances, 2011
An idea of azimuthally dividing the slow wave structure (SWS) of a relativistic backward wave oscillator (RBWO) into two parts is introduced to realize a bifrequency oscillation.
Dong Wang, Fen Qin, Dai-Bing Chen, Jie Wen, Xiao Jin   +4 more
doaj   +1 more source

Multi-beam gun design for an S-band klystron

AIP Advances, 2022
This paper introduces the detailed design scheme of a multi-beam electron gun applied to an S-band high power multi-beam klystron. The multi-beam gun adopts a coaxial cavity arrangement, and the total number of electron beams are 40 (19 in the inner ...
Xiaobo Lin, Rui Zhang, Quangui Chao, Bingchuan Xie, Zhihui Geng, Yunfeng Liao, Xiudong Yang   +6 more
doaj   +1 more source

Extrusion‐Based Additive Manufacturing of Advanced Ceramics: Strengthening Mechanisms and Process Optimization Review

Advanced Engineering Materials, EarlyView.
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari, Mohammad Hadi Sheikh‐Ansari, Avinash Borgaonkar, Mehran Dadkhah, Abdollah Saboori   +4 more
wiley   +1 more source

Mode selection characteristics in a circular waveguide loaded with a left-handed metamaterial

AIP Advances, 2019
We theoretically study mode selection characteristics in a left-handed metamaterial (LHM) loaded into a circular waveguide. The existent modes in the circular waveguide are closely related to the radius of the coaxially loaded LHM, and a general rule ...
Zhiqiang Fan, Jun Sun, Yibing Cao, Zhimin Song, Ping Wu, Yanchao Shi   +5 more
doaj   +1 more source

Irradiation‐Induced Spin Bath Evolution and as‐Grown Hydrogen Defects in CVD Diamond Revealed by NV‐Based DEER Spectroscopy

Advanced Functional Materials, EarlyView.
Here, we provide the reader with the current state of the art in the fabrication of high‐T2‐coherence diamond, optimized through the use of double electron–electron resonance (DEER) spectroscopy. We reveal the main as well as yet unidentified spin defects, the reduction of which is essential for reducing the spin bath and fabricating materials for ...
Olga Rubinas, Jeroen Prooth, Michael Petrov, Remy Vandebosch, Emilie Bourgeois, David Chvátil, Milos Nesladek   +6 more
wiley   +1 more source

High-Efficiency, Broadband Converter From A Rectangular Waveguide TE₁₀ Mode to A Circular Waveguide TM₀₁ Mode for Overmoded Device Measurement

IEEE Access, 2018
To accurately measure the performance of overmoded devices used in high-power microwave systems, a novel structure that effectively converts the TE10 mode in a rectangular waveguide to a high-purity TM01 mode in a circular waveguide is proposed.
Xinhong Cui, Gang Wang, Tingyong Jiang, Hao Shao, Jun Sun, Xiaolong Wu, Xianchen Bai, Xiaowei Zhang, Zhiqiang Zhang   +8 more
doaj   +1 more source

Design and simulation of an S-band compact multi-beam klystron

AIP Advances, 2023
The miniaturization and high power of klystron are the main concerns of accelerators. Multi-beam klystron (MBK) can accommodate higher power and a lower operating voltage than single-beam klystrons, significantly reducing volume and weight.
Xiaobo Lin, Rui Zhang, Li Zuo, Quangui Chao, Bingchuan Xie, Zhicheng Wang, Zhihui Geng, Yunfeng Liao, Xiudong Yang   +8 more
doaj   +1 more source

Three‐Dimensional Anomalous Hall Sensing Enabled By Spin–Orbit Torque Driven Domain Reconfiguration In Chiral Multilayers

Advanced Functional Materials, EarlyView.
A three‐dimensional magnetic field sensor is realized in chiral W/CoFeB/MgO multilayers, where spin–orbit torques reversibly reconfigure homochiral stripe domains. The symmetry of the torque enables offset‐free in‐plane sensing, while the reproducible domain reconfiguration extends the linear out‐of‐plane range. An anomalous Hall readout delivers large‐
Sabri Koraltan, Rahul Gupta, Reshma Peremadathil Pradeep, Fabian Kammerbauer, Iryna Kononenko, Klemens Prügl, Michael Kirsch, Bernd Aichner, Santiago Helbig, Florian Bruckner, Claas Abert, Andrada Oana Mandru, Armin Satz, Gerhard Jakob, Hans Josef Hug, Mathias Kläui, Dieter Suess   +16 more
wiley   +1 more source

Effects of transverse electron beam motion in a relativistic backward wave oscillator operating at low guiding magnetic field

AIP Advances, 2020
We found that the electron drift length, L1, between a diode area and a resonant reflector in a relativistic backward wave oscillator operating at a low guiding magnetic field has a periodical influence on device power, which is a special characteristic ...
Huida Wang, Renzhen Xiao, Changhua Chen, Ping Wu, Yanchao Shi   +4 more
doaj   +1 more source