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9篇 您的检索式:作者名="Wu Yaoping"
    题名 作者 年代 出处 被引量
1Estimating biophysical parameters of rice with remote sensing data using support vector machines显示文摘Hyperspectral reflectance (350-2500 nm) measurements were made over two experimental rice fields containing two cultivars treated with three levels of nitrogen application.Four different transformations of the reflectance data were analyzed for their capability to predict rice biophysical parameters,comprising leaf area index (LAI;m-2 green leaf area m-2 soil) and green leaf chlorophyll density (GLCD;mg chlorophyll m 2 soil),using stepwise multiple regression (SMR) models and support vector machines (SVMs).Four transformations of the rice canopy data were made,comprising reflectances (R),first-order derivative reflectances (D1),second-order derivative reflectances (D2),and logarithm transformation of reflectances (LOG).The polynomial kernel (POLY) of the SVM using R was the best model to predict rice LAI,with a root mean square error (RMSE) of 1.0496 LAI units.The analysis of variance kernel of SVM using LOG was the best model to predict rice GLCD,with an RMSE of 523.0741 mg m-2.The SVM approach was not only superior to SMR models for predicting the rice biophysical parameters,but also provided a useful exploratory and predictive tool for analyzing different transformations of reflectance data.YANG XiaoHua HUANG JingFeng WU YaoPing WANG JianWen WANG Pei WANG XiaoMing Alfredo R. HUETE 2011Science China(Life Sciences)2011,54,3:12
2A Compact Implementation of AES S-Box Using Evolutionary Algorithm显示文摘S-Box based on Composite field arithmetic(CFA) technology is optimized by Genetic algorithm(GA)and Cartesian genetic programming(CGP) model for reducing the hardware complexity. After using the CFA technique to map Multiplicative inverse(MI) over GF(2~8)into composite field GF((2~4)~2), the compact MI circuit over GF(2~4) is selected from 100 evolved circuits, and same design method is applied to the compact multiplication circuit over GF(2~2). Compared with the direct implementations, the areas of optimized circuits of MI over GF(2~4) and multiplication over GF((2~2)2) are reduced by66% and 57.69%, respectively. The area reductions for MI over GF(2~8) and the whole of S-Box are up to 59.23%and 56.14%, separately. In 180 nm 1.8V COMS technology,compared to previous works, the S-Box proposed in this paper has the minimum area and minimum power, which are 11.27% and 6.65% smaller than that of the smallest area S-Box, respectively.LIU Yaoping WU Ning ZHANG Xiaoqiang ZHOU Fang GE Fen 2017Chinese Journal of Electronics2017,26,4:2
3Multiresolution Delaunay Triangulation Model-based Image Representation Scheme显示文摘Lu Zhaoyang Yan Yaoping Wu Chengke 1996Journal of Xidian University1996,26,3:1
4Posterolateral spinal fusion in rabbits using a RP-based PLGA/TCP/Col/BMSCs-OB biomimetic grafting material显示文摘Ma Xing Wu Xiaoming Wu Yaoping 2009J Bioactive Compatible Polym2009,24,5:1
5A New Robust Multiple Description Coding Method Based on Region of Interest 显示文摘Song Xiao Fang Zhang Chengke Wu Yunsong Li Yaoping Yan 2003IEEE AINA2003,,:1
6What af-fects green consumer behavior in China? A case study from Qingdao显示文摘Zhao Huihui Gao Qian Wu Yaoping 2014Journal of Cleaner Production2014,63,2:1
7Continued Increases of Gross Primary Production in Urban Areas during 2000-2016显示文摘Urbanization affects vegetation within city administrative boundary and nearby rural areas.Gross primary production(GPP)of vegetation in global urban areas is one of important metrics for assessing the impacts of urbanization on terrestrial ecosystems.To date,very limited data and information on the spatial-temporal dynamics of GPP in the global urban areas are available.In this study,we reported the spatial distribution and temporal dynamics of annual GPP during 2000–2016 from 8,182 gridcells(0.5°by 0.5°latitude and longitude)that have various proportion of urban areas.Approximately 79.3%of these urban gridcells had increasing trends of annual GPP during 2000-2016.As urban area proportion(%)within individual urban gridcells increased,the means of annual GPP trends also increased.Our results suggested that for those urban gridcells,the negative effect of urban expansion(often measured by impervious surfaces)on GPP was to large degree compensated by increased vegetation within the gridcells,mostly driven by urban management and local climate and environment.Our findings on the continued increases of annual GPP in most of urban gridcells shed new insight on the importance of urban areas on terrestrial carbon cycle and the potential of urban management and local climate and environment on improving vegetation in urban areas.Yaoping Cui Xiangming Xiao Jinwei Dong Yao Zhang Yuanwei Qin Russell BDoughty Xiaocui Wu Xiaoyan Liu Joanna Joiner Berrien Moore III 2022Journal of Remote Sensing2022,,1:0
8Radiofrequency ablation of hepatocellular carcinoma: Current status,challenges, and prospects显示文摘Local ablation technologies, such as radiofrequency ablation (RFA), microwave ablation (MWA) andcryoablation, have become a standard treatment option for hepatocellular carcinoma (HCC) less than5 cm in size, particularly in individuals who are not candidates for hepatectomy. Except for equivalentprognosis and efficiency, RFA has various advantages over surgical excision, including a lower rate ofcomplications, a cheaper cost, more normal tissue preservation, and a shorter hospital stay. However, therate of tumor recurrence and/or distant metastasis after RFA therapy is still high. RFA has been widelyemployed in multiple cancers, large cancer, and lesion identified at “high-risk” sites in recent years, withthe advancement of ablation types and operating techniques, particularly the combined use of manytechnologies. The real value of RFA technology has been more fully reflected.We will examine the status,progress, and problems of RFA in the treatment of HCC in this review.Hongye Wang Zhaorong Wu Dan Cui Yaoping Shi Bo Zhai 2023Liver Research2023,7,2:0
9Adaptive DT Mesh Points Tracking——A Novel Sequential Image Inter-frame Predictive Scheme显示文摘AdaptiveDTMeshPointsTracking———ANovelSequentialImageInterframePredictiveSchemeYanYaopingWuChengke(DepartmentofInformationEn...Yan Yaoping Wu Chengke (Department of Information Engineering, Xidian University, Xi’an 710071) 1998通信学报1998,19,5:0
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