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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
地理科学与资源研究所 [1]
地质与地球物理研究所 [1]
长春光学精密机械与物... [1]
南京地质古生物研究所 [1]
自动化研究所 [1]
广州能源研究所 [1]
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OAI收割 [6]
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期刊论文 [5]
会议论文 [1]
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2023 [1]
2021 [2]
2020 [1]
2011 [2]
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Two new species of Oricymba (Bacillariophyta) from China, described with reference to the structure of the apical pore field
期刊论文
OAI收割
PHYTOTAXA, 2023, 卷号: 591, 期号: 3, 页码: 181-195
作者:
Yuan, Li
;
Liu, Bing
;
Rioual, Patrick
;
Yi, Man-Qi
;
Zheng, Yan
  |  
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2023/12/29
Fanjing Mountain
headwater stream
marginal ridge
surface ridge
Xiao River
Lipid biomarker composition in surface sediments from the Carlsberg Ridge near the Tianxiu Hydrothermal Field
期刊论文
OAI收割
ACTA OCEANOLOGICA SINICA, 2021, 卷号: 40, 期号: 8, 页码: 53-64
作者:
Mao, Shengyi
;
Guan, Hongxiang
;
Liu, Lihua
;
Han, Xiqiu
;
Chen, Xueping
  |  
收藏
  |  
浏览/下载:77/0
  |  
提交时间:2021/11/01
Carlsberg Ridge
Tianxiu Hydrothermal Field
surface sediments
biomarkers
Spatial Downscaling of Land Surface Temperature Based on a Multi-Factor Geographically Weighted Machine Learning Model
期刊论文
OAI收割
REMOTE SENSING, 2021, 卷号: 13, 期号: 6, 页码: 33
作者:
Xu, Saiping
;
Zhao, Qianjun
;
Yin, Kai
;
He, Guojin
;
Zhang, Zhaoming
  |  
收藏
  |  
浏览/下载:49/0
  |  
提交时间:2021/07/09
land surface temperature
spatial downscaling
geographically weighted regression
ensemble learning
extreme gradient boosting
multivariate adaptive regression splines
Bayesian ridge regression
Sentinel-2A
Sporopollen records and implications for surface processes: A case study of Shell Ridge in the Qaidam Basin, Qinghai-Tibetan Plateau
期刊论文
OAI收割
QUATERNARY INTERNATIONAL, 2020, 卷号: 565, 页码: 41-53
作者:
Li, Wei
;
Song, Bing
;
Zhang, Shuqin
;
Li, Sha
  |  
收藏
  |  
浏览/下载:83/0
  |  
提交时间:2020/12/23
Shell ridge
Sporopollen
Surface processes
Paleoclimate
Qaidam basin in Qinghai-Tibetan plateau
Ridge extraction of a smooth 2-manifold surface based on vector field
期刊论文
OAI收割
COMPUTER AIDED GEOMETRIC DESIGN, 2011, 卷号: 28, 期号: 4, 页码: 215-232
作者:
Che, WuJun
;
Zhang, XiaoPeng
;
Zhang, Yi-Kuan
;
Paul, Jean-Claud
;
Xu, Bo
收藏
  |  
浏览/下载:48/0
  |  
提交时间:2015/08/12
Implicit surface
Invariant feature
Line of curvature
Parametric surface
Principal curvature
Principal direction
Ridge
Umbilical point
Vector field
Fabrication of high-efficiency ultraviolet blazed gratings by use of direct Ar2-CHF3 ion-beam etching through a rectangular photoresist mask (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, May 24, 2011 - May 26, 2011, Beijing, China
Tan X.
收藏
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浏览/下载:44/0
  |  
提交时间:2013/03/25
In ultraviolet spectroscopy
groove irregularity and surface roughness of nanometer magnitude can cause a significant loss of diffraction efficiency. Therefore
there is a constant need to improve the diffraction efficiency. A blazed grating can concentrate most of the light intensity into a desired diffraction order
it is important to control the groove shape precisely
so it is the optimum choice among gratings of different kinds of profile. As the operating wavelength of most UV spectral applications is less than 200 nm
especially the blaze angle and the apical angle. We have presented a direct shaping method to fabricate EUV blazed gratings by using an ion-beam mixture of Ar+ and CHF2 +to etch K9 glass with a rectangular photoresist mask. With this method
the required blaze angle is small
we have succeeded in fabricating well-shaped UV blazed gratings with a 1200 line/mm groove density and 8.54 blaze angles and 1200 line/mm groove density and 11.68 blaze angles
and the metrical efficiency is about 81% and 78%. The good performance of the gratings was verified by diffraction efficiency measurements. When one uses the etching model
the conditions on the ion-beam grazing incident angle and the CHF3partial pressure should be noted. Besides
since the etched groove shape depends on the aspect ratio of the photoresist mask ridge
if we wish to fabricate larger gratings with this method
we must improve the uniformity of the photoresist mask before ion-beam etching. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).