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浏览/检索结果: 共12条，第1-10条 帮助

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Consistency Discrimination and Experimental Study of Rock Discontinuities Based on Borehole Optical Images 期刊论文  OAI收割
APPLIED SCIENCES-BASEL, 2023, 卷号: 13, 期号: 6, 页码: -
作者:  Han, Zengqiang;  Li, Minghong;  Wang, Chao;  Wang, Yiteng;  Huang, Xiaohua
  |  收藏  |  浏览/下载：16/0  |  提交时间：2023/08/02
Effect of HfC and SiC on microstructure and mechanical properties of HfB2-based ceramics 期刊论文  OAI收割
CERAMICS INTERNATIONAL, 2016, 卷号: 42, 期号: 6, 页码: 7861-7867
作者:  Yuan, Ye;  Liu, Ji-Xuan;  Zhang, Guo-Jun
收藏  |  浏览/下载：20/0  |  提交时间：2017/02/27
Biochemical Characterization of Two Thermostable Xylanolytic Enzymes Encoded by a Gene Cluster of Caldicellulosiruptor owensensis 期刊论文  OAI收割
PLOS ONE, 2014, 卷号: 9, 期号: 8, 页码: 12
作者:  Mi, Shuofu;  Jia, Xiaojing;  Wang, Jinzhi;  Qiao, Weibo;  Peng, Xiaowei
收藏  |  浏览/下载：40/0  |  提交时间：2014/09/30
Tribological properties of Zr61Ti2Cu25Al12 bulk metallic glass under simulated physiological conditions 期刊论文  OAI收割
Materials Science & Engineering C-Materials for Biological Applications, 2014, 卷号: 37, 页码: 292-304
Y. Wang; L. L. Shi; D. L. Duan; S. Li; J. Xu
收藏  |  浏览/下载：27/0  |  提交时间：2014/07/03
Influences of alloying elements and oxygen on the stability and elastic properties of Mg17Al12 期刊论文  OAI收割
Journal of Alloys and Compounds, 2014, 卷号: 595, 页码: 142-147
J. H. Dai; Y. Song; R. Yang
收藏  |  浏览/下载：36/0  |  提交时间：2014/04/18
Isolation, structural characterization, and potential applications of hemicelluloses from bamboo: A review 期刊论文  OAI收割
CARBOHYDRATE POLYMERS, 2014, 卷号: 112, 页码: 701-720
作者:  Peng, Pai;  She, Diao
收藏  |  浏览/下载：27/0  |  提交时间：2015/12/09
Evaluation of spatial upscaling methods based on remote sensing data with multiple spatial resolutions (EI CONFERENCE) 会议论文  OAI收割
Satellite Data Compression, Communications, and Processing VIII, August 12, 2012 - August 13, 2012, San Diego, CA, United states
Ren R.; Gu L.; Cao J.; Chen H.; Sun J.
收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25
In most applications of remote sensing data  special spatial information is required from a finer to a coarser spatial resolution with appropriate upscaling methods. The purpose of this paper is to compare and evaluate current spatial upscaling methods using MODIS remote sensing data with multiple spatial resolutions. In the research  Northeast China was selected as the study area. MODIS data with spatial resolutions of 250 m (2 bands) and 500 m (7 bands) were used as the test data. Through using the selected upscaling methods  the Band 1 and Band 2 data of MODIS were scaled up from 250 m to 500 m spatial resolution. On the basis of land cover characteristics of Northeast China  the MODIS data located in the study area was classified into the five land cover types  including water  grasslands  forests  farmlands and bare lands using maximum likelihood method. The land cover classification results were further compared with MODIS Land Cover Type product. Finally  Structural Similarity (SSIM) was selected to evaluate the effects of these upscaling methods. The research can provide more useful information for spatial scaling transformation in remote sensing data applications. 2012 SPIE.  
Simulation and experiment of the static FTIR based on micro multi-step mirrors (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
作者:  Liang Z.-Z.;  Zhang J.;  Zhang J.;  Zhang J.;  Zhu W.-B.
收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25
In recent years  Fourier transform spectrometer (FTS) with small size and low mass is required in many applications with growing need for real-time and small platform spectral detection. In this paper  a micro Fourier transform infrared spectrometer (FTIR) based on spatial modulation mode was designed. This spectrometer has the advantages of high stability and simplified configuration. It also promises optical path differences (OPD) with high precision  as MOEMS technology is used in manufacturing the key components. The simulation and the experiments with regard to this FTIR configuration have been done. Firstly  the diffraction effect of the micro multi-step mirrors (MMSMs) is studied. We discuss the influence to the reversed spectrum by different mirror widths and different diffraction distances. Secondly  we simulate and analyze the influence of the source solid angle to the spectral resolution. Thirdly  we set up the theoretical model of the collimation error which is mainly from the defocus of the optical system and analyze the result caused by the collimation error. Fourthly  a new discrete Fourier transform arithmetic using least-squares cosines progression (LSCP) is proposed which can reconstruct the spectrum with nonuniform sampled signals. Finally  the MMSMs are fabricated used the MOEMS technology and the structural parameters are tested. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  
A field imaging spectrometer system 会议论文  OAI收割
3rd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2011,, Lisbon, Portugal, June 6, 2011 - June 9,2011
Zhang, Lifu; Wang, Jinnian; Fang, Junyong; Xue, Yongqi; Tong, Qingxi
收藏  |  浏览/下载：25/0  |  提交时间：2014/12/07
Rigid-flexible coupling dynamics analysis of a spot-welding robot 会议论文  OAI收割
Kunming, China, March 20-23, 2011
作者:  Luo HT(骆海涛);  Liu YW(刘玉旺);  Wang HG(王洪光)
  |  收藏  |  浏览/下载：17/0  |  提交时间：2012/06/06