中国科学院机构知识库网格系统: 检索

Low terahertz-band scanning near-field microscope with 155-nm resolution 期刊论文 OAI收割
ULTRAMICROSCOPY, 2021, 卷号: 226, 页码: 7
作者: Dai, Guangbin; Wang, Jie; Zhang, Xiaoxuan; Chang, Tianying; Cui, Hong-Liang

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收藏 | 浏览/下载：61/0 | 提交时间：2021/08/20

Low terahertz-band Near-field Background scattering Antenna theory Mixer demodulation

Study on Electrical Properties of Multilayered Spherical Earth by Wireless Electromagnetic Method 期刊论文 OAI收割
IEEE ACCESS, 2021, 卷号: 9, 页码: 54090-54100
作者: Gao, Ya; Di, Qingyun; Ma, Zhenjun; Yun, Zhe

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收藏 | 浏览/下载：101/0 | 提交时间：2021/10/19

Earth Electromagnetic fields Ionosphere Electromagnetics Electromagnetic waveguides Electromagnetic scattering Impedance Extremely low frequency electromagnetic method spherical coordinate system “ earth-ionosphere” model multilayered sphere refined electrical structure

Correlative Full-Intensity Waveform Inversion 期刊论文 OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2020, 卷号: 58, 期号: 10, 页码: 6983-6994
作者: He, Bin; Liu, Yike; Lu, Huiyi; Zhang, Zhendong

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收藏 | 浏览/下载：45/0 | 提交时间：2020/12/07

Data models Linear programming Frequency-domain analysis Bandwidth Scattering Geology Geophysics Cycle-skipping full-waveform inversion (FWI) intensity low frequency source-independent

Ultra-broadband low scattering metasurface utilizing mixed-elements based on phase cancellation 期刊论文 OAI收割
Journal of Physics D-Applied Physics, 2020, 卷号: 53, 期号: 2
作者: Yang, Jianing; Huang, Cheng; Song, Jiakun; Ji, Chen; Luo, Xiangang

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收藏 | 浏览/下载：31/0 | 提交时间：2021/05/11

low scattering ultra-broadband mixed elements PSO algorithm metasurface

Measurement of strange baryon-antibaryon interactions with femtoscopic correlations 期刊论文 OAI收割
PHYSICS LETTERS B, 2020, 卷号: 802, 页码: -
作者: Acharya, S; Acosta, FT; Adam, J; Adamova, D; Adler, A

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收藏 | 浏览/下载：36/0 | 提交时间：2021/09/06

LOW-ENERGY MULTIPLE PRODUCTION NUCLEON INTERACTION BOUND-STATE SCATTERING SIGMA COLLISIONS

An underlying clock in the extreme flip-flop state transitions of the black hole transient Swift J1658.2-4242 期刊论文 OAI收割
Astronomy and Astrophysics, 2020, 卷号: 641, 页码: A101
作者: HXMT

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收藏 | 浏览/下载：58/0 | 提交时间：2022/02/08

accretion accretion disks black hole physics X-rays: binaries time Astrophysics - High Energy Astrophysical Phenomena Abstract:
Aims: Flip-flops are top-hat-like X-ray flux variations, which have been observed in some transient accreting black hole binary systems, and feature simultaneous changes in the spectral hardness and the power density spectrum (PDS). They occur at a crucial time in the evolution of these systems, when the accretion disc emission starts to dominate over coronal emission. Flip-flops remain a poorly understood phenomenon, so we aim to thoroughly investigate them in a system featuring several such transitions.
Methods: Within the multitude of observations of Swift J1658.2-4242 during its outburst in early 2018, we detected 15 flip-flops, enabling a detailed analysis of their individual properties and the differences between them. We present observations by XMM-Newton, NuSTAR, Astrosat, Swift, Insight-HXMT, INTEGRAL, and ATCA. We analysed their light curves, searched for periodicities, computed their PDSs, and fitted their X-ray spectra, to investigate the source behaviour during flip-flop transitions and how the interval featuring flip-flops differs from the rest of the outburst.
Results: The flip-flops of Swift J1658.2-4242 are of an extreme variety, exhibiting flux differences of up to 77% within 100 s, which is much larger than what has been seen previously. We observed radical changes in the PDS simultaneous with the sharp flux variations, featuring transitions between the quasi-periodic oscillation types C and A, which have never been observed before. Changes in the PDS are delayed, but more rapid than changes in the light curve. Flip-flops occur in two intervals within the outburst, separated by about two weeks in which these phenomena were not seen. Transitions between the two flip-flop states occurred at random integer multiples of a fundamental period of 2.761 ks in the first interval and 2.61 ks in the second. Spectral analysis reveals the high and low flux flip-flop states to be very similar, but distinct from intervals lacking flip-flops. A change of the inner temperature of the accretion disc is responsible for most of the flux difference in the flip-flops. We also highlight the importance of correcting for the influence of the dust scattering halo on the X-ray spectra.

Metasurface-Based Lens for Antenna Gain Enhancement and Radar Cross Section Reduction 期刊论文 OAI收割
IEEE Photonics Journal, 2019, 卷号: 11, 期号: 6
作者: Yang, Jianing; Huang, Cheng; Song, Jiakun; Zhang, Xu; Xie, Xin

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收藏 | 浏览/下载：19/0 | 提交时间：2021/05/06

Lens antenna low scattering gain enhancement metasurface

Probing intermediates of the induction period prior to nucleation and growth of semiconductor quantum dots 期刊论文 OAI收割
NATURE COMMUNICATIONS, 2017, 卷号: 8, 期号: -, 页码: -
作者: Liu, MY; Wang, K; Wang, LX; Han, S; Fan, HS

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收藏 | 浏览/下载：34/0 | 提交时间：2018/08/30

Magic-sized Cdse Strong Bandgap Photoluminescence Small-angle Scattering Low-temperature Cdte Nanocrystals Mass-spectrometry Calcium-phosphate Clusters Nanoparticles Nanoclusters

Nuclear resonant inelastic X-ray scattering at high pressure and low temperature 期刊论文 OAI收割
JOURNAL OF SYNCHROTRON RADIATION, 2015, 卷号: 22, 页码: 760-765
作者: Bi, WL; Zhao, JY; Lin, JH; Jia, QJ; Hu, MY

收藏 | 浏览/下载：43/0 | 提交时间：2016/04/18

nuclear resonant scattering phonon density of states high pressure low temperature iron-pnictides

The near threshold pi(-)p -> eta n reaction in an effective Lagrangian approach 期刊论文 OAI收割
MODERN PHYSICS LETTERS A, 2014, 卷号: 29
作者: Lu, Qi-Fang; Liu, Xiao-Hao; Xie, Ju-Jun; Li, De-Min

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收藏 | 浏览/下载：8/0 | 提交时间：2018/07/05

Hadron-induced Low- And Intermediate-energy Reactions And Scattering Baryon Resonances Hadronic Decays