中国科学院机构知识库网格系统: 检索

OFx: A method of 4D image construction from free-breathing non-gated MRI slice acquisitions of the thorax via optical flux 期刊论文 OAI收割
MEDICAL IMAGE ANALYSIS, 2021, 卷号: 72, 页码: 18
作者: Hao, You; Udupa, Jayaram K.; Tong, Yubing; Wu, Caiyun; Li, Hua

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收藏 | 浏览/下载：49/0 | 提交时间：2021/12/01

4D construction Optical flux Dynamic MRI Respiratory signal extraction

Advances in critical technologies for hypersonic and high-enthalpy wind tunnel 期刊论文 OAI收割
CHINESE JOURNAL OF AERONAUTICS, 2020, 卷号: 33, 期号: 12, 页码: 3027-3038
作者: Jiang ZL(姜宗林); Hu ZM(胡宗民); Wang YP(汪运鹏); Han GL(韩桂来)

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收藏 | 浏览/下载：34/0 | 提交时间：2021/03/30

High-enthalpy flow Hypersonic wind tunnel Aerospace vehicle Aerodynamic balance Heat flux sensor Optical measurement technique

Fast in vivo bioluminescence tomography using a novel pure optical imaging technique 期刊论文 OAI收割
JOURNAL OF INNOVATIVE OPTICAL HEALTH SCIENCES, 2017, 卷号: 10, 期号: 3
作者: Zhang, Shuang; Leng, Chengcai; Liu, Hongbo; Wang, Kun; Tian, Jie

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收藏 | 浏览/下载：26/0 | 提交时间：2017/07/18

Optical Surface Reconstruction Bioluminescence Tomography Reconstruction Optical Molecular Imaging Light Flux Reconstruction

A two-dimensional magneto-optical trap for a cesium fountain clock 期刊论文 OAI收割
ACTA PHYSICA SINICA, 2013, 卷号: 62, 期号: 6
作者: Wu ChangJiang; Ruan Jun; Chen Jiang

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收藏 | 浏览/下载：13/0 | 提交时间：2021/11/29

two dimensional magneto-optical trap flux low-velocity atom beam cesium atom fountain clock

Control of N/N2 species ratio in NO plasma for p-type doping of ZnO (EI CONFERENCE) 会议论文 OAI收割
作者: Chen X.; Liu L.; Liu L.; Li B.; Li B.

收藏 | 浏览/下载：21/0 | 提交时间：2013/03/25

Nitrogen-doped ZnO thin films were grown on c-plane sapphire (Al 2O3) substrates via plasma-assisted molecular beam epitaxy using plasma activated nitric oxide (NO) as the oxygen source and dopant. X-ray diffraction measurements indicate that a small NO flux benefits the crystal quality of the thin films. Hall effect measurements indicate that the electron density of the ZnO films decreases gradually with decreasing NO flux and the conduction reverses to p-type at a certain flux. Optical emission spectra indicate that the N atom content in the NO plasma increases with decreasing NO flux and the origin of this is discussed. X-ray photoelectron spectroscopy measurements demonstrate that the number of N atom occupied O sites in the ZnO lattice increases correspondingly. 2011 American Institute of Physics.

Flux growth of cslib6o10 crystals 期刊论文 iSwitch采集
Journal of crystal growth, 2010, 卷号: 312, 期号: 16-17, 页码: 2415-2418
作者: Yu, Xuesong; Hu, Zhang-Gui

收藏 | 浏览/下载：26/0 | 提交时间：2019/05/10

Cslib6o10 (clbo) Top-seeded solution growth (tssg) Flux Nonlinear optical materials (nlo)

Design and image restoration research of a cubic-phase-plate system (EI CONFERENCE) 会议论文 OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, April 26, 2010 - April 29, 2010, Dalian, China
作者: Zhang J.; Zhang J.; Zhang J.; Shi G.; Zhang X.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

Wave-front coding technology is a novel jointly optical and digital imaging technology which can greatly extend the depth of focus of optical systems. The image restoration process is an important part of wave-front coding technology. Using wave-front coding makes the modulation transfer function(MTF) values of the optical systems change little over a range of several times the depth of focus which means the system MTF is quite insensitive to defocus and there is no zero in the passband. So we can design a single filter for the restoration of images in different defocus positions. However it's hard to avoid noise during image acquisition and transmission processes. These noises will be amplified in the image restoration especially in the high frequency part when the MTF drop is relatively low. The restoration process significantly reduces the system signal to noise ratio this way. Aimed at the problem of noise amplification a new algorithm was proposed which incorporated wavelet denoising into the iterative steps of Lucy-Richardson algorithm. Better restoration results were obtained through the new algorithm effectively solving the noise amplification problem of original LR algorithm. Two sets of identical triplet imaging systems were designed in one of which the cubic-phase-plate was added. Imaging experiments of the manufactured systems were carried and the images of a traditional system and a wave-front coded system before and after decoding were compared. The results show that the designed wave-front coded system can extend the depth of focus by 40 times compared with the traditional system while maintaining the light flux and the image plane resolution. 2010 Copyright SPIE - The International Society for Optical Engineering.

Single-crystal growth: From new borates to industrial semiconductors 期刊论文 OAI收割
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2010, 卷号: 207, 期号: 12, 页码: 2757
Wang, G; Chen, XL

收藏 | 浏览/下载：18/0 | 提交时间：2013/09/24

NONLINEAR-OPTICAL CRYSTAL SHARING BO4 TETRAHEDRA FUNDAMENTAL BUILDING-BLOCK HIGH-PRESSURE PREPARATION BROAD-BAND AMPLIFICATION SIC BULK CRYSTAL PVT METHOD LI3N FLUX LUMINESCENCE PROPERTIES NEGATIVE REFRACTION

A Cross-Comparison of Cotemporal Magnetograms Obtained with MDI/SOHO and SP/Hinode 期刊论文 OAI收割
SOLAR PHYSICS , 2009, 卷号: 260, 期号: 1, 页码: 233-244
Wang D.; Zhang M.; Li H.

收藏 | 浏览/下载：14/0 | 提交时间：2011/12/08

SOLAR OPTICAL TELESCOPE FLUX-DENSITY MAPS MAGNETIC-FIELDS CALIBRATION HINODE

Growth and optical properties of bulk KTP crystals by hydrothermal method 期刊论文 OAI收割
Journal of Crystal Growth, 2008, 卷号: 310, 期号: 7-9, 页码: 2010-2014
C. L. Zhang; Z. G. Hu; L. X. Huang; W. N. Zhou; Z. Lue; G. Zhang; Y. C. Liu; Y. B. Zou; F. H. Lu; H. D. Hou; S. J. Qin; H. X. Zhang and L. Bai

收藏 | 浏览/下载：28/0 | 提交时间：2013/01/22

anti-gray track characterization hydrothermal crystal growth KTP1 phosphates nonlinear optical materials potassium titanyl phosphate refractive-index coefficients ktiopo4 crystals analog crystals flux conductivity temperature solubility