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浏览/检索结果: 共10条，第1-10条 帮助

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Streamflow trends during recent decades at some near-natural catchments in Iran 期刊论文  OAI收割
HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES, 2022, 卷号: 67, 期号: 1, 页码: 107-116
作者:  Zhang, Qinghuan;  Hosseini-Moghari, Seyed-Mohammad;  Tang, Qiuhong;  Wang, Zhihui
  |  收藏  |  浏览/下载：24/0  |  提交时间：2022/09/21
Streamflow trends during recent decades at some near-natural catchments in Iran 期刊论文  OAI收割
HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES, 2022, 卷号: 67, 期号: 1, 页码: 107-116
作者:  Zhang, Qinghuan;  Hosseini-Moghari, Seyed-Mohammad;  Tang, Qiuhong;  Wang, Zhihui
  |  收藏  |  浏览/下载：16/0  |  提交时间：2022/09/21
The effect of low-temperature event on the survival and growth of Juglans mandshurica seedlings within forest gaps 期刊论文  OAI收割
JOURNAL OF FORESTRY RESEARCH, 2018, 期号: 4, 页码: 943-951
作者:  Wen, Yongjing;  Wang, Yi;  Yan, Tao;  Jin, Lei;  Liu, Limin
  |  收藏  |  浏览/下载：40/0  |  提交时间：2018/09/10
The effect of low-temperature event on the survival and growth of Juglans mandshurica seedlings within forest gaps 期刊论文  OAI收割
JOURNAL OF FORESTRY RESEARCH, 2018, 卷号: 29, 期号: 4, 页码: 943-951
作者:  Li Xiufen;  Wen Yongjing;  Zhang Jinxin;  Liu Limin;  Jin Lei
  |  收藏  |  浏览/下载：21/0  |  提交时间：2021/02/02
Using delta Dn-alkane as a proxy for paleo-environmental reconstruction: A good choice to sample at the site dominated by woods 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2017, 卷号: 599-600, 期号: 2017, 页码: 554-559
作者:  Wu, Huawu;  Wang, Zheng;  Liu, Jinzhao;  An, Zhisheng
  |  收藏  |  浏览/下载：34/0  |  提交时间：2018/10/16
Using δDn-alkane as a proxy for paleo-environmental reconstruction: Agood choice to sample at the site dominated by woods 期刊论文  OAI收割
Science of the Total Environment, 2017, 卷号: 599-600, 期号: 2017, 页码: 554-559
作者:  Liu,JZ(Liu,Jinzhao);  An,ZS(An,Zhisheng);  Wang,Z(Wang,Zheng);  Wu,HW(Wu,Huawu);  Liu,Jinzhao
  |  收藏  |  浏览/下载：22/0  |  提交时间：2018/10/25
Environmental Factors that Affect Primary Plant Succession Trajectories on Lahars (Popocatépetl Volcano, Mexico) 期刊论文  OAI收割
Journal of Mountain Science, 2015, 卷号: 12, 期号: 5, 页码: 1254-1266
作者:  GARCÍA-ROMERO Arturo;  ALANÍS-ANAYA Rocío Marisol;  MUÑOZ-JIMÉNEZ Julio
收藏  |  浏览/下载：25/0  |  提交时间：2015/09/22
Dispersion compensating properties of microstructure fiber (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Communication, August 21, 2005 - August 26, 2005, Changshun, China
作者:  Li C.;  Wang W.;  Wang W.;  Li C.;  Li C.
收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25
Microstructure fiber is a new kind of optical fiber. An arrangement of air holes running along the full length of the fiber provides the confinement and guidance of light. The light is confined in the silica core along the fiber axis. This fiber has endlessly single mode  special dispersion characteristics and so on. Using a vectorial effective-index numerical method  we investigated the dispersion characteristics of a microstructure fiber with honeycomb cladding structures. The dispersion  dispersion slope  and Kappa parameter can be designed neatly by changing the air hole size and the separation of the holes in fiber cladding. We demonstrated the Microstructure fiber with large absolute value of normal dispersion and negative dispersion slope at the wavelength of 1550nm. Conventional communication non-shifted single-mode fibers and nonzero-dispersion shifted fibers (NZ-DSF) can be compensated efficiently using the microstructure fiber at the wavelength around 1550nm.  
Developing of in-suit long trance profiler for testing slope error of aspherical optical Elements (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
Zhou C.; Li H.; Chen C.; Zhou C.; Qian S.
收藏  |  浏览/下载：42/0  |  提交时间：2013/03/25
Profile error of super smooth surface of optical elements at X-ray/EUV in synchrotron radiation (SR) light beam line is described as slope error of them generally. The Long Trace Profiler (LPT) is used for testing surface slope error of SR optical elements in world generally. It is requisite to use In-suit LTP measuring surface thermal distortion of SR optical elements with high heat under high bright SR source. Authors design an In-suit LTP by means of co-path interferometer with pencil light beam. The instrument not only can be used for testing slope error of mirrors in Lab. also in situation test the distortion of mirror with high heat load at synchrotron light beam line. The device can be used to test various absolute surface figures of optical elements such as aspherieal  spherical and plane. It is needless standard reference surface. It is named by LTP-III. This paper describes its basic operating principle  optical system  mechanical constructions  DC serve motor control system  array detector  data acquisition system and computer system for controlling and data analysis of LTP-III. The Instrument has advantages of high accuracy  low cost  multifunction and wide application. Length of surface measured of optical element accuracy is 0.04 arcsec.  
Growth of ZnO hexagonal nanoprisms 期刊论文  OAI收割
NANOTECHNOLOGY, 2005, 卷号: 16, 期号: 11, 页码: 2665
Liu, DF; Xiang, YJ; Zhang, ZX; Wang, JX; Gao, Y; Song, L; Liu, LF; Dou, XY; Zhao, XW; Luo, SD; Wang, CY; Zhou, WY; Wang, G; Xie, SS
收藏  |  浏览/下载：20/0  |  提交时间：2013/09/17