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	Salt crystallization in cold sulfate saline soil 期刊论文 iSwitch采集 COLD REGIONS SCIENCE AND TECHNOLOGY, 2017, 卷号: 137, 页码: 36-47 作者: Wan, Xusheng; Hu, Qijun; Liao, Mengke 收藏 \| 浏览/下载：36/0 \| 提交时间：2019/10/09 Supersaturation ratio Sodium sulfate decahydrate Surface free energy Critical nucleation radius Salt expansion force Frost heave pressure
	Optimized design of optical fiber displacement-vibration sensor based on reflection method 期刊论文 OAI收割 journal of applied optics, 2016, 卷号: 37, 期号: 2, 页码: 281-287 作者: Dong Qiaomiao 收藏 \| 浏览/下载：27/0 \| 提交时间：2016/10/21 optical fiber sensor reflection method power ratio optical fiber radius numerical
	SUPERMASSIVE BLACK HOLES WITH HIGH ACCRETION RATES IN ACTIVE GALACTIC NUCLEI. I. FIRST RESULTS FROM A NEW REVERBERATION MAPPING CAMPAIGN 期刊论文 OAI收割 ASTROPHYSICAL JOURNAL, 2014, 卷号: 782, 期号: 1 作者: SEAMBH collaboration 收藏 \| 浏览/下载：33/0 \| 提交时间：2015/12/02 SEYFERT 1 GALAXIES BROAD-LINE REGION AGN MONITORING PROJECT RADIUS-LUMINOSITY RELATIONSHIP SPECTRAL ENERGY-DISTRIBUTIONS DIGITAL SKY SURVEY X-RAY VARIABILITY COSMOLOGICAL EVOLUTION EDDINGTON RATIO OPTICAL VARIABILITY
	Key techniques of laser direct writing patterns on spherical substrate (EI CONFERENCE) 会议论文 OAI收割 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, July 8, 2007 - July 12, 2007, Chengdu, China 作者: Zhao J.-L.; Feng X.-G. 收藏 \| 浏览/下载：31/0 \| 提交时间：2013/03/25 Comparing with the writing method of plane pattern spherical pattern' has some remarkable different on several points. Firstly it is difficult to spin-coated a uniform photoresist film on a spherical substrate especially the ratio of spherical radius to caliber is smaller and the spin-coated way must match the ratio of spherical radius to caliber. Secondly if the sphere couldn't be regarded as a plane a so-called concentric optical scan movement way must be applied for the generation of spherical pattern because the reflex of substrate will affect the quantity of illumination. Commonly an alignment technique is indispensable with pattern generation of spherical surface by the concentric optical scan in order to ensure the orthogonal intersection of focusing laser beam and writing surface. Thirdly a uniform velocity control must be considered for the laser direct writing method on a spherical substrate. Otherwise the exposure time of photoresist will be different and the line widths of pattern will be also different at different areas. Fourthly commonly because the errors of concentric machine and substrate surface shape are bigger so focusing servo-control technique is also needful for writing a pattern on a spherical substrate. Focusing servo-control may keep the focal spot on the spherical surface by a focus detection and control system in the course of writing pattern. Using these techniques we fabricated a line width of 7m and a period of 600m isometric mesh on the concave of a spherical substrate.
	The relationships of sunspot magnetic field strength with sunspot area, umbral area and Penumbra-Umbra Radius Ratio 期刊论文 OAI收割 ASTROPHYSICS AND SPACE SCIENCE, 2006, 卷号: 306, 期号: 1-2, 页码: 23-27 作者: Jin CL(金春兰); Qu ZQ(屈中权); Xu CL(胥成林); Zhang XY(张霄宇); Sun MG(孙明国) 收藏 \| 浏览/下载：21/0 \| 提交时间：2016/04/08 sunspots-magnetic field-umbral area-radius ratio
	Effect of Eccentricity and Radius Ratio on Fluid Flow and Heat Transfer Inside an Eccentric Semicircular Enclosure 期刊论文 OAI收割 JOURNAL OF THERMAL SCIENCE, 2000, 卷号: 9, 期号: 2, 页码: 135,140 Prodip Kumar Das; Shohel Mahmud 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/03/12 eccentricity eccentric enclosure Nusselt number radius ratio