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浏览/检索结果: 共11条,第1-10条 帮助

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Diversity of medicinal plants and their therapeutic usages of Kachin people (Jinghpaw) in the central part of Kachin State, Myanmar 期刊论文  OAI收割
JOURNAL OF ETHNOPHARMACOLOGY, 2023, 卷号: 302, 期号: B, 页码: 115921
作者:  
Hein,Pyae Phyo;  Arunachalam,Karuppusamy;  Fu,Yao;  Zaw,Moe;  Yang,Yongping
  |  收藏  |  浏览/下载:8/0  |  提交时间:2024/07/25
Genus Ribes Linn. (Grossulariaceae): A comprehensive review of traditional uses, phytochemistry, pharmacology and clinical applications 期刊论文  OAI收割
JOURNAL OF ETHNOPHARMACOLOGY, 2021, 卷号: 276
作者:  
Sun, Qing;  Wang, Na;  Xu, Wenhua;  Zhou, Huakun
  |  收藏  |  浏览/下载:31/0  |  提交时间:2021/11/18
Natural Products, Traditional Uses and Pharmacological Activities of the Genus Biebersteinia (Biebersteiniaceae) 期刊论文  OAI收割
PLANTS-BASEL, 2020, 卷号: 9, 期号: 5
作者:  
Zhang, Benyin;  Jin, Xiaona;  Yin, Hengxia;  Zhang, Dejun;  Zhou, Huakun
  |  收藏  |  浏览/下载:19/0  |  提交时间:2020/11/25
Multipurpose plant utilization in ethnic areas of Guizhou, southwest China 期刊论文  OAI收割
ECOLOGICAL INDICATORS, 2018, 卷号: 90, 页码: 547-553
作者:  
Deng, Hongbing;  Shen, Yuan;  Mao, Shuxin
  |  收藏  |  浏览/下载:38/0  |  提交时间:2019/06/17
A shape context based Hausdorff similarity measure in image matching 会议论文  OAI收割
5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications, Beijing, June 25-27, 2013
作者:  
Ma TL(马天磊);  Liu YP(刘云鹏);  Shi ZL(史泽林);  Yin J(尹健)
收藏  |  浏览/下载:36/0  |  提交时间:2013/12/26
The traditional Hausdorff measure, which uses Euclidean distance metric (L2 norm) to define the distance between coordinates of any two points, has poor performance in the presence of the rotation and scale change although it is robust to the noise and occlusion. To address the problem, we define a novel similarity function including two parts in this paper. The first part is Hausdorff distance between shapes which is calculated by exploiting shape context that is rotation and scale invariant as the distance metric. The second part is the cost of matching between centroids. Unlike the traditional method, we use the centroid as reference point to obtain its shape context that embodies global information of the shape. Experiment results demonstrate that the function value between shapes is rotation and scale invariant and the matching accuracy of our algorithm is higher than that of previously proposed algorithm on the MEPG-7 database.  
Reentry guidance based on feedback linearization (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China
Li D.-W.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
This paper presents a new reentry guidance algorithm for RLV (Reusable Launching Vehicle). The algorithm consists of two integrated components: trajectory planning algorithm and tracking algorithm. The most striking feature of algorithm here lies in that both planning and tracking are executed directly in height-velocity space  which is different from the methodology of configuration of drag in traditional shuttle guidance. In the session of trajectory planning  all trajectory constraints can be expressed with upper bound and lower bound in height-velocity space  then a linear interpolation is carried to search the nominal trajectory satisfying the requirement of downrange and target constraints. Then the tracking algorithm uses feedback linearization method to track this nominal profile and meet all constraints. Another typical feature of this algorithm is the strategy of downrange extension using FPA (flight path angle) controller to fulfill the requirement of large downrange. Proper combination of planning-tracking algorithm and FPA controller can bring great flexibility and adaptability to reentry guidance. The algorithm is proved to be robust enough to accommodate the model error and noises in the dynamics. 2011 IEEE.  
Design for target classifier based on semi-supervised learning (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
Jiangrui K.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
Measuring instrument for radial composite deviations of high-precision master gear (EI CONFERENCE) 会议论文  OAI收割
6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China
作者:  
Zhang Y.;  Wang L.;  Wang L.;  Wang L.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
During double flank rolling composite detection  the radial composite deviations of master gears has been existed and transferred to the measured gear by the primary harmonic curve. In order to improve measurement accuracy  a measuring instrument is developed for radial composite deviations of high-precision master gear in the paper. This instrument uses the structure of spring-suspend swing span to overcome the shortcomings of large rotation errors  low sensitivity  low resolution and large measuring force appearing in the traditional combination-type gear inspection instrument. Artificial intelligence technology is used to improve the efficiency and accuracy of this instrument. The result is that the measuring apparatus is able to meet the requirement and improve efficiency through the measuring experiments on master gears of precision grade 2 with modulus 2 mm and 3 mm  respectively. 2010 SPIE.  
Layered fast correlation tracking algorithm combined with target feature (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Guo L.-H.
收藏  |  浏览/下载:21/0  |  提交时间:2013/03/25
Ethnobotanical survey of medicinal plants at periodic markets of Honghe Prefecture in Yunnan Province, SW China 期刊论文  OAI收割
JOURNAL OF ETHNOPHARMACOLOGY, 2008, 卷号: 117, 期号: 2, 页码: 362-377
作者:  
Lee, Sangwoo;  Mao, Chunjie;  Pei, Shengji
收藏  |  浏览/下载:24/0  |  提交时间:2012/04/18