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筛选

浏览/检索结果: 共46条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Hilbert transformation deep learning network for single-shot moire profilometry 期刊论文  OAI收割 OPTICS AND LASERS IN ENGINEERING, 2023, 卷号: 160 作者:  Ma, Pu;  Du, Hubing;  Ma, Yueyang;  Zhang, Gaopeng;  Wang, Feng   |  收藏  |  浏览/下载：63/0  |  提交时间：2022/10/14 Moir? profilometry  Phase demodulation  2D Hilbert transform  Deep learning   High-Accurate Quantitative Phase Imaging Based on the Transport of Intensity Equation and Wavelet Transform 期刊论文  OAI收割 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2023, 卷号: 72 作者:  Fan, Chen;  Zhao, Hong;  Zhao, Zixin;  Li, Junxiang;  Du, Yijun   |  收藏  |  浏览/下载：26/0  |  提交时间：2023/08/01 Estimation  Wavelet transforms  Lighting  Imaging  Image resolution  Fitting  Mathematical models  Computational imaging  phase retrieval  quantitative phase imaging (QPI)  transport of intensity equation (TIE)  wavelet transform (WT)   Combination of FTIR and DFT to study the regulation law of [EMIM][OAc] on the microstructure of the acetone鈥搈ethanol azeotrope system 期刊论文  OAI收割 Journal of Molecular Liquids, 2022, 卷号: 362 作者:  Zheng, Yan-Zhen;  Lu, Yu-Miao;  Tian, Xin-Yu;  He, Hong-Yan;  Zhang, Yu-Cang   |  收藏  |  浏览/下载：0/0  |  提交时间：2023/06/26 Acetone - Fourier transform infrared spectroscopy - Hydrogen bonds - Ionic liquids - Methanol - Microstructure - Phase equilibria   Broad-band phase retrieval method for transient radial shearing interference using chirp Z transform technique 期刊论文  OAI收割 CHINESE PHYSICS B, 2021, 卷号: 30, 期号: 8 作者:  Xue, Fang;  Duan, Ya-Xuan;  Chen, Xiao-Yi;  Li, Ming;  Yuan, Suo-Chao   |  收藏  |  浏览/下载：41/0  |  提交时间：2021/08/12 radial shearing interference  chirp Z transform (CZT)  phase retrieval   Detection of Flare Multiperiodic Pulsations in Mid-ultraviolet Balmer Continuum, Lyl Hard X-Ray, and Radio Emissions Simultaneously 期刊论文  OAI收割 The Astrophysical Journal, 2021, 卷号: 921, 页码: 179 作者:     |  收藏  |  浏览/下载：27/0  |  提交时间：2022/02/08 Solar flares  Solar oscillations  Solar ultraviolet emission  Solar  x-ray emission  Solar radio emission  1496  1515  1533  1536  1522  Astrophysics - Solar and Stellar Astrophysics  Abstract: Quasi-periodic pulsations (QPPs), which usually appear as temporal pulsations of the total flux, are frequently detected in the light curves of solar/stellar flares. In this study, we present the investigation of nonstationary QPPs with multiple periods during the impulsive phase of a powerful flare on 2017 September 6, which were simultaneously measured by the Hard X-ray Modulation Telescope (Insight-HXMT), as well as the ground-based BLENSW. The multiple periods, detected by applying a wavelet transform and Lomb-Scargle periodogram to the detrended light curves, are found to be ~20-55 s in the Ly`and mid-ultraviolet Balmer continuum emissions during the flare impulsive phase. Similar QPPs with multiple periods are also found in the hard X-ray emission and low-frequency radio emission. Our observations suggest that the flare QPPs could be related to nonthermal electrons accelerated by the repeated energy release process, i.e., triggering of repetitive magnetic reconnection, while the multiple periods might be modulated by the sausage oscillation of hot plasma loops. For the multiperiodic pulsations, other generation mechanisms could not be completely ruled out.   Generalized phase retrieval: Measurement number, matrix recovery and beyond 期刊论文  OAI收割 APPLIED AND COMPUTATIONAL HARMONIC ANALYSIS, 2019, 卷号: 47, 期号: 2, 页码: 423-446 作者:  Wang, Yang;  Xu, Zhiqiang   |  收藏  |  浏览/下载：41/0  |  提交时间：2020/01/10 Phase retrieval  Frames  Fusion frames  Fourier transform  Measurement number  Low rank matrix recovery  Bilinear form  Embedding   A sequential feature extraction method based on discrete wavelet transform, phase space reconstruction, and singular value decomposition and an improved extreme learning machine for rolling bearing fault diagnosis 期刊论文  OAI收割 PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING, 2018, 卷号: 232, 期号: 6, 页码: 635-649 作者:  Li, D. Z.;  Zheng, X.;  Xie, Q. W.;  Jin, Q. B.   |  收藏  |  浏览/下载：193/0  |  提交时间：2019/07/12 Fault identification classification  rolling bearing  discrete wavelet transform  phase space reconstruction  singular value decomposition  improved extreme learning machine   Calcium deficiency in hydroxyapatite and its drug delivery applications 期刊论文  OAI收割 MICRO & NANO LETTERS, 2018, 卷号: 13, 期号: 4, 页码: 562-564 作者:  Rajagopalan, Vijayaraghavan;  Koppala, Sivasankar;  Swamiappan, Sasikumar;  Gangarajula, Yuvaraj;  Xu, Lei   |  收藏  |  浏览/下载：48/0  |  提交时间：2019/06/20 Calcium Compounds  Bioceramics  Drug Delivery Systems  Drugs  Nanoparticles  Particle Size  Nanofabrication  Nanomedicine  Fourier Transform Infrared Spectra  Precipitation  Calcination  X-ray Diffraction  Scanning Electron Microscopy  X-ray Chemical Analysis  Nanoporous Materials  Porosity  Drug Delivery Applications  Calcium Deficient Hydroxyapatites  Precipitation Method  Calcined Samples  Fourier Transformation Infrared Spectroscopy  Powder X-ray Diffraction  Scanning Electron Microscopy  Energy-dispersive X-ray Spectroscopy  Phase Purity  Particle Size  Particle Shape  Hap Structure  Ciprofloxacin  Sustained Drug Release  Phosphate Buffer Solution  Porous Structure  [Ca10-x(Po4)(6)(Oh)(2)]   Highly noise-tolerant hybrid algorithm for phase retrieval from a single-shot spatial carrier fringe pattern 期刊论文  OAI收割 OPTICS AND LASERS IN ENGINEERING, 2018, 卷号: 100, 页码: 176-185 作者:  Cheng, Haobo;  Dong, Zhichao   |  收藏  |  浏览/下载：28/0  |  提交时间：2018/01/08 Phase Retrieval  Single-shot Fringe Pattern  Hybrid Algorithm  Wavelet Transform   A low dose and in-vivo imaging system based on equally sloped tomography 会议论文  OAI收割 Melbourne, AUSTRALIA, APR 18-21, 2017 作者:  Zhou, GZ;  Du, GH;  Wang, YD;  Wang, DD;  Xiao, TQ   |  收藏  |  浏览/下载：26/0  |  提交时间：2019/12/31 X-RAY MICROTOMOGRAPHY  PHASE RETRIEVAL  FOURIER-TRANSFORM  DISTANCE