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浏览/检索结果: 共12条,第1-10条 帮助

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Himalaya to Hengduan: dynamics of alpine treelines under climate change 期刊论文  OAI收割
REGIONAL ENVIRONMENTAL CHANGE, 2023, 卷号: 23, 期号: 4, 页码: 157
作者:  
Tiwari,Achyut;  Adhikari,Arjun;  Fan,Ze-Xin;  Li,Shu-Feng;  Jump,Alistair S.
  |  收藏  |  浏览/下载:14/0  |  提交时间:2024/05/09
Genome-wide analysis of maize MBD gene family and expression profiling under abiotic stress treatment at the seedling stage 期刊论文  OAI收割
PLANT BIOTECHNOLOGY REPORTS, 2020, 页码: 16
作者:  
Qian, Yexiong;  Ren, Qiaoyu;  Jiang, Lingyu;  Zhang, Jing;  Chen, Changle
  |  收藏  |  浏览/下载:28/0  |  提交时间:2020/10/04
Characterization of the cis elements in the proximal promoter regions of the anthocyanin pathway genes reveals a common regulatory logic that governs pathway regulation 期刊论文  OAI收割
JOURNAL OF EXPERIMENTAL BOTANY, 2015, 卷号: 66, 期号: 13, 页码: 3775-3789
作者:  
Zhu, Zhixin;  Wang, Hailong;  Wang, Yiting;  Guan, Shan;  Wang, Fang
  |  收藏  |  浏览/下载:35/0  |  提交时间:2022/09/13
Multilocus species delimitation in the Crotalus triseriatus species group (Serpentes: Viperidae: Crotalinae), with the description of two new species 期刊论文  OAI收割
ZOOTAXA, 2014, 卷号: 3826, 期号: 3, 页码: 475-496
作者:  
收藏  |  浏览/下载:22/0  |  提交时间:2014/11/24
Structure and magnetic properties of (Al, Co) Co-doped ZnO thin films (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Materials Science and Nanotechnology, ICMSN 2012, November 16, 2012 - November 18, 2012, Guangzhou, China
Cao P.; Bai Y.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
In this study  Zn0.99Co0.01Al0.015O thin film has been prepared by sol-gel method. The structural and magnetic properties of the sample were investigated. X-ray diffraction spectroscopy analyses indicate that the Co and Al codoping can not disturb the structure of ZnO. No additional peaks are observed in the Zn0.99Co0.01Al xO and Al3+ and Co2+ substitute for Zn 2+ without changing the wurtzite structure. The resistance measurements confirm that Al ions increase the free carriers concentration. Based on the above experiments we think the ferromagnetic behavior of the sample could not originate from Co nanoclusters. The presence of free carriers and localized d spins is a prerequisite for the appearance of ferromagnetism. As the result  the carriers generated by Al doping is considered a main factor to induce the ferromagnetic phenomenon. (2013) Trans Tech Publications  Switzerland.  
The approximate calculation of atmospheric path radiance in close range and horizontal direction (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Sensors, Measurement and Intelligent Materials, ICSMIM 2012, December 26, 2012 - December 27, 2012, Guilin, China
作者:  
Sun Z.;  Chen Y.;  Zhang Y.
收藏  |  浏览/下载:31/0  |  提交时间:2013/03/25
Atmospheric path radiance is the key factor in the accuracy of objective radiation measurement. In the traditional radiation character measurements  it is compared with the results of MODTRAN and measurement in experiment. It is revealed that the accuracy of software is 7.8%  under the help of the atmospheric observation equipment  and the formula is 4.9%  MODTRAN and other software likewise  which could demonstrate the validity of the pproximate calculation formula in close range and horizontal direction. In this article  the indeterminacy rate could be around 10~20%  in the process of deducing and experiment  it is highly restricts the measurement accuracy of objective radiation. For this reason  the validity of the approximate calculation formula in close range and horizontal direction is fully proved  it is quite significant to develop the study of measure and calculation in path radiance. The approximate calculation formula for path radiance in close range and horizontal direction is expressed in this article  which supply a new method in approximate calculation of path radiance for objective radiation measurement. (2013) Trans Tech Publications  Switzerland.  
An Improved Chloroplast DNA Extraction Procedure for Whole Plastid Genome Sequencing 期刊论文  OAI收割
PLOS ONE, 2012, 卷号: 7, 期号: 2, 页码: e31468
作者:  
Shi, Chao;  Hu, Na;  Huang, Hui;  Gao, Ju;  Zhao, You-Jie
收藏  |  浏览/下载:24/0  |  提交时间:2012/06/07
The research of digltal CR medicine image adapitive enhancement method (EI CONFERENCE) 会议论文  OAI收割
4th International Conference on Mechanical and Electrical Technology, ICMET 2012, July 24, 2012 - July 26, 2012, Kuala Lumpur, Malaysia
Ming-Hui Z.; Yao-Yu Z.
收藏  |  浏览/下载:63/0  |  提交时间:2013/03/25
Digital CR medicine radiation image is in doctor's favor and has became medicine imaging technology new hot spot because of its high gray contrast  powerful computer disposal function  little radiation dosage  non-film diagnosis  different area consultation. But degradation of digital X-ray medical image such as low contrast and blurring during radiographic imaging  caused by complexity of body tissue and effects of X-ray scattering and electrical noise etc.  can worsen the results of analysis and diagnosis. So it is usually needed that CR medicine image is enhanced to improve its vision quality  and easy to doctor's more accurate diagnosis. The general enhancement algorithms over enhancing the contrast and lose image details  aiming at the defects  an enhancement algorithm for CR image is proposed based on the ratio of deviation to mean of domain. The arithmetic enhance CR image edge details by adjusting factor K based on the ratio of deviation to mean of domain of CR image. Experiment results demonstrate that the algorithm enhances CR image detail and CR image enhanced has good visual effect  the adaptive enhancement method is fit for CR medicine image. (2012) Trans Tech Publications  Switzerland.  
Design of stable image platform on airborne camera (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, September 16, 2011 - September 18, 2011, Guangzhou, China
作者:  
Yang L.;  Yang L.
收藏  |  浏览/下载:15/0  |  提交时间:2013/03/25
Modulation transfer function resulting from random vibration was analyzed. To conclude that the effect of angular displacement was the major factor. Allowable MTF degradation was represented  and 34dB reduction was achieved at frequency of 100HZ. With the help of MSC.ADAMS simulation software  and convert allowable MTF degradation into stable system design parameters  simulated curve proves correct for isolator  which can guide perfect design for stabilization system. Based on the spatial mechanism and translational principle of parallelogram  and the irrotational displacement mechanism was tested by optical method  an irrotational displacement isolator was developed. It can meet the requirements of irrotational displacement and damp. An instance was given  coupled angle is less than 8?  it can satisfy the demand of aerial imaging. (2011) Trans Tech Publications.  
PPIase domain of trigger factor acts as auxiliary chaperone site to assist the folding of protein substrates bound to the crevice of trigger factor 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY, 2010, 卷号: 42, 期号: 6, 页码: 890-901
Liu, ChuanPeng; Zhou, QiMing; Fan, DongJie; Zhou, JunMei; 周筠梅
收藏  |  浏览/下载:28/0  |  提交时间:2013/12/24