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24篇 您的检索式:作者名="LIAO AnPing"
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1High-resolution remote sensing mapping of global land water显示文摘Land water, one of the important components of land cover, is the indispensable and important basic information for climate change studies, ecological environment assessment, macro-control analysis, etc. This article describes the overall study on land water in the program of global land cover remote sensing mapping. Through collection and processing of Landsat TM/ETM+, China's HJ-1 satellite image, etc., the program achieves an effective overlay of global multi-spectral image of 30 m resolution for two base years, namely, 2000 and 2010, with the image rectification accuracy meeting the requirements of 1:200000 mapping and the error in registration of images for the two periods being controlled within 1 pixel. The indexes were designed and selected reasonably based on spectral features and geometric shapes of water on the scale of 30 m resolution, the water information was extracted in an elaborate way by combining a simple and easy operation through pixel-based classification method with a comprehensive utilization of various rules and knowledge through the object-oriented classification method, and finally the classification results were further optimized and improved by the human-computer interaction, thus realizing high-resolution remote sensing mapping of global water. The completed global land water data results, including Global Land 30-water 2000 and Global Land 30-water 2010, are the classification results featuring the highest resolution on a global scale, and the overall accuracy of self-assessment is 96%. These data are the important basic data for developing relevant studies, such as analyzing spatial distribution pattern of global land water, revealing regional difference, studying space-time fluctuation law, and diagnosing health of ecological environment.LIAO AnPing CHEN LiJun CHEN Jun HE ChaoYing CAO Xin CHEN Jin PENG Shu SUN FangDi GONG Peng 2014Science China Earth Sciences2014,57,10:22
2Efficacy of Atorvastatin combined with adipose-derived mesenchymal stem cell transplantation on cardiac function in rats with acute myocardial infarction显示文摘间充质的干细胞(MSC ) 广泛地被申请了在尖锐心肌的梗塞(AMI ) 以后的 cardiomyocytes 损失的恢复。然而,在 ischemic 心疾病的 MSC 的最佳的治疗学的功效被他们的差的幸存和低区分的率妨碍了。因此, MSC 幸存的改进和区分的率被保证并且为在 AMI 的 MSC 的功效批评。在这份报纸,从腹股沟的胖纸巾作为脂肪质导出被称为间充质的干细胞(ASC ) 的老鼠孤立的 MSC,和 ASC 的第四个段落被文化 co 在一个 transwell 系统与 cardiomyocytes 预先指定作为 co-ASCs 称为。十四天以后, GATA-4 (一个抄写因素) 和心脏的 troponin -- 我被细胞的 immunofluorescence 检测。Atorvastatin (Ator 组) 或车辆(控制组) 在老鼠在 AMI 生产以后为开始的 24 h 被管理。十四天以后,煽动性的参数和心脏的功能被评估。另外的幸存老鼠与 1 普物敭 ? 潴戠 ? 的一个总数被注射 ? 楤敲瑣琠牡敧 ? 敧敮漠 ? 業??? 祢攠桮湡散 ? 牧敥 ? 汦潵敲 ' 諟?牰瑯楥? 敲潰瑲牥攠灸牥浩湥吗?Anping Cai Dongdan Zheng Yugang Dong Ruofeng Qiu Yuli Huang Yuanbin Song Zhigao Jiang Shaoqi Rao Xinxue Liao Jian Kuang Gang Dai Weiyi Mai 2011Acta Biochimica et Biophysica Sinica2011,43,11:16
3A comparative analysis of five global cropland datasets in China显示文摘Accurate information of cropland area and spatial location is critical for studies of national food security, global environmental change, terrestrial ecosystem geophysics and the geochemical cycle. In this paper, we compared five global cropland datasets in circa 2010 of China from in terms of cropland area and spatial location, including Global Land30, FROM-GLC, Glob Cover, MODIS Collection 5, and MODIS Cropland. The results showed that the accuracies of cropland area and spatial location of Globe Land30 were higher than the other four products. The cropland areas of the five products varied in most of the provinces. Compared with the statistical data, the best goodness of fit was obtained using Globe Land30, followed by MODIS Collection 5 and FROM-GLC, with MODIS Cropland and Glob Cover having the poorer accuracies. Regarding the spatial location of cropland, Globe Land30 achieved the best accuracy, followed by FROM-GLC and MODIS Collection 5, with Glob Cover and MODIS Cropland having the poorer accuracies. In addition, the spatial agreement of the five datasets was reduced from agricultural production area to pastoral area and significantly affected by elevation and slope factors. Although the spatial resolution of MODIS Collection 5 was the lowest, accuracies of the cropland area and spatial location were better than those of Glob Cover and MODIS Cropland. Therefore, high spatial resolution remote sensing images can help to improve the accuracy of the dataset during land cover mapping, while it is also important to select a suitable classification method. Furthermore, in northwestern and southeastern China, spectral mixing pixels are universal because of the complicated landscape and fragmentized topography and result in uncertainty and poor consistency when using the five products. Therefore, these regions require additional attention in future cropland mapping studies.LU Miao WU WenBin ZHANG Li LIAO AnPing PENG Shu TANG HuaJun 2016Science China(Information Sciences)2016,59,12:15
4Preparation of Fe–Co based MOF-74 and its effective adsorption of arsenic from aqueous solution显示文摘To obtain a cost-effective adsorbent for the removal of arsenic in water,a novel nanostructured Fe–Co based metal organic framework(MOF-74)adsorbent was successfully prepared via a simple solvothermal method.The adsorption experiments showed that the optimal molar ratio of Fe/Co in the adsorbent was 2:1.The Fe_2Co_1MOF-74 was characterized by various techniques and the results showed that the nanoparticle diameter ranged from60 to 80 nm and the specific surface area was 147.82 m^2/g.The isotherm and kinetic parameters of arsenic removal on Fe_2Co_1MOF-74 were well-fitted by the Langmuir and pseudo-second-order models.The maximum adsorption capacities toward As(III)and As(V)were 266.52 and 292.29 mg/g,respectively.The presence of sulfate,carbonate and humic acid had no obvious effect on arsenic adsorption.However,coexisting phosphate significantly hindered the removal of arsenic,especially at high concentrations(10 mmol/L).Electrostatic interaction and hydroxyl and metal–oxygen groups played important roles in the adsorption of arsenic.Furthermore,the prepared adsorbent had stable adsorption ability after regeneration and when used in a real-water matrix.The excellent adsorption performance of Fe_2Co_1MOF-74 material makes it a potentially promising adsorbent for the removal of arsenic.Jianqiang Sun Xiaobing Zhang Anping Zhang Chunyang Liao 2019Journal of Environmental Sciences2019,31,6:11
5Preliminary analysis of spatiotemporal pattern of global land surface water显示文摘Land surface water(LSW) is one of the most important resources for human survival and development, and it is also a main component of global water recycling. A full understanding of the spatial distribution of land surface water and a continuous measuring of its dynamics can support to diagnose the global ecosystem and environment. Based on the Global Land 30-water 2000 and Global Land 30-water 2010 products, this research analyzed the spatial distribution pattern and temporal fluctuation of land surface water under scale-levels of global, latitude and longitude, continents, and climate zones. The Global Land 30-water products were corrected the temporal inconsistency of original remotely sensed data using MODIS time-series data, and then calculated the indices such as water area, water ration and coefficient of spatial variation for further analysis. Results show that total water area of land surface is about 3.68 million km2(2010), and occupies 2.73% of land area. The spatial distribution of land surface water is extremely uneven and is gathered mainly in mid- to high-latitude area of the Northern Hemisphere and tropic area. The comparison of water ratio between 2000 and 2010 indicates the overall fluctuation is small but spatially differentiated. The Global Land 30-water products and the statistics provided the fundamental information for analyzing the spatial distribution pattern and temporal fluctuation of land surface water and diagnosing the global ecosystem and environment.CAO Xin CHEN Jun CHEN LiJun LIAO AnPing SUN FangDi LI Yang LI Lei LIN ZhongHui PANG ZhiGuo CHEN Jin HE ChaoYing PENG Shu 2014Science China Earth Sciences2014,57,10:8
6Global cultivated land mapping at 30 m spatial resolution显示文摘Cultivated land is one of the most important types of land cover in the global mapping of land cover, and its variation influences economic development, food security, and ecological environment protection. Existing products of global cultivated land mapping have a low resolution, and high spatial resolution products are in demand. This study uses global remote sensing image datasets in 2000/2010 with a spatial resolution of 30 m(Landsat TM/ETM+, HJ-1), MODIS 250 m NDVI time-serial data, and many types of reference data. An three-layer extraction method based on pixels, objects, and knowledge(POK) was adopted to ease cultivated land extraction in global-scale 30 m images, i.e., cultivated land classification based on pixel-scale multi-feature optimization, cultivated land automatic identification based on objects, and interactive object processing based on information service and priori knowledge. Global 30 m cultivated land mapping was accomplished for the two reference years(2000 and 2010), and statistical analysis was conducted on the data. Results showed that the total cultivated land area was 1.903 billion ha and 1.960 billion ha, respectively. Accuracy assessments showed that overall accuracy of global cultivated land mapping are higher than 92% for both the two reference years. The global cultivated land products in 2000/2010 developed in this research are superior to their international counterparts in terms of spatial resolution and classification accuracy. They also provide significant basic data on global food security, ecological environment supervision, and global change.CAO Xin CHEN XueHong ZHANG WeiWei LIAO AnPing CHEN LiJun CHEN ZhiGang CHEN Jin 2016Science China(Information Sciences)2016,59,12:8
7Geospatial knowledge-based verification and improvement of GlobeLand30显示文摘Assuring the quality of land-cover data is one of the major challenges for large- area mapping projects. Although the use of geospatial knowledge and ancillary data in improving land-cover classification has been studied since the early 1980 s, mature methods and efficient supporting tools are still lacking. This paper presents a geospatial knowledge-based verification and improvement approach for global land cover(GLC) mapping at 30-m resolution. A set of verification rules is derived from three types of land cover and its change knowledge(natural, cultural and temporal constraints). A group of web-based supporting tools is developed to facilitate the integration of and access to large amounts of ancillary data and to support online data manipulation and analysis as well as collaborative verification workflows. With this approach, two 30-m GLC datasets(Globe Land-2000 and Globe Land-2010) were verified and modified. The results indicate that the data quality of Globe Land30 has been largely improved.ZHANG WeiWei CHEN Jun LIAO AnPing HAN Gang CHEN XueHong CHEN LiJun PENG Shu WU Hao ZHANG Jun 2016Science China Earth Sciences2016,59,9:5
8Global mapping of artificial surfaces at 30-m resolution显示文摘Urbanization is expected to accelerate with population growth and economic development at the global scale. The artificial surface is the main land cover form of urbanization. On the one hand, urbanization provides spaces for industry, economic activities and residence. On the other hand, artificial surfaces change the earth surface to a large extent, thus significantly affecting natural processes such as the heat exchange, hydrological processes and ecological balance. Therefore, the global mapping of artificial surfaces is valuable for both natural science and social science. This study produced the global artificial surface maps at 30-m resolution for two base-years using the satellite images acquired around 2000 and 2010. First, we proposed a new definition of 'artificial surface' based on patch level with consideration of its geographic meaning and image features at 30-m resolution. Second, pixel-based and object-based image processing techniques were combined for the extraction of artificial surface patches. Finally, human editing and a quality control system were employed to guarantee the quality of global mapping. Independent accuracy assessments show that the user's accuracy of this product is higher than 80%. It can be concluded that the product is the most reliable one among all the available global datasets of artificial surfaces(or related types). The data can significantly contribute to various research fields, such as urbanization and ecosystem assessment.CHEN XueHong CAO Xin LIAO AnPing CHEN LiJun PENG Shu LU Miao CHEN Jin ZHANG WeiWei ZHANG HongWei HAN Gang WU Hao LI Ran 2016Science China(Information Sciences)2016,59,12:3
9OPTIMAL APPROXIMATE SOLUTION OF THE MATRIX EQUATION AXB = C OVER SYMMETRIC MATRICES显示文摘在 A, B 和 C 被给合适的尺寸的矩阵的地方,让 S<sup>E</sup> 表示矩阵方程 AXB = C 的最少平方的对称的答案集合。在集合 SE 发现最佳的近似答案到一个给定的矩阵,我们基于设计定理,概括 SVD 和正规修正分解给一个新可行方法。Anping Liao Yuan Lei 2007Journal of Computational Mathematics2007,25,5:3
10On Hermitian positive definite solution of the matrix equation X -A*XrAi - Q显示文摘Duan Xuefeng Liao Anping 2009Journal of Computational and Applied Mathematics2009,229,:1
11Best approximate solution of matrix equation AXB +CYD = E 显示文摘LIAO Anping BAI Zhongzhi LEI Yuan 2006SIAM J Matrix Anal Appl2006,27,3:1
12Least squares Hermitian solution of the matrix equation norm over the skew field of quaternions 显示文摘YUAN Shifang LIAO Anping (AXB CXD) = (E F) with the least 48: 91-100 LEI Yuan 2008Math Comput Modeling2008,,:1
13Stereo mapping of Ming Great Wall with remote sensing显示文摘Listed by UNESCO in 1987 as a World Heritage site,the world-famous Ming Great Wall stretches several thousands of kilometers across northern China,and served as a massive military defensive system which in recent times has a unique historical,artistic and scientific value.Due to historical reasons and lack of advanced technologies,construction resources and conservation status of Ming Great Wall have not been investigated in any systematic manner;indeed,the extent of the Great Wall has not even been measured.This has resulted in a shortage of reliable first-hand scientific information on actual size,spatially resource distribution and preservation status of this World Heritage site.Driven by the urgent need to establish protection,research,renovation and management of Ming Great Wall,a comprehensive investigation and spatial mapping was jointly organized and completed by the State Bureau of Survey and Mapping and State Administration of Culture Heritage.High resolution digital stereo models at 1:10000 map scale covering the whole length of the Ming Great Wall have been created by photogrammetric reconstruction using nearly ten thousand aerial images.Spatial distribution and attributes of the wall sections,trenches and various subsidiary facilities in the surroundings of the Great Wall were measured with the help of digital photogrammetry workstations and results from field studies.Reliable and precise information about the Ming Great Wall has now been obtained and documented,including surface lengths,resource distribution,and preservation status.For example,the total length of Ming Great Wall is 8851.8 km,of which 6259.6 km is of actual wall,2232.5 km of natural terrain,and 359.7 km of trenches.In category lengths,1828.8 km is constructed of stone,3411.3 km of earth,249.6 km in brick,197.5 km of cliff wall and the rest 572.4 km of other means.Such information provides the scientific basis and strong platform in helping to delineate areas needing protection,in planning conservation and renovation programs,as well as digital archiving for posterity and web-based applications for modern promotions of one of the world's great attractions,the Ming Great Wall.CHEN Jun JIN ShuPing LIAO AnPing ZHAO YouSong ZHANG HongWei RONG DaWei YANG ZhaoJun 2010Chinese Science Bulletin2010,55,21:1
14Positive definite solution of the matrix equation显示文摘Guozhu Yao Anping Liao Xuefeng duan 0,,:1
15Catalytic effect of nanogold on Cu (Ⅱ)-N2 H4 reaction and its application to resonance scatte ring immunoassay显示文摘JIANG Zhiliang LIAO Xianjiu DENG Anping 0,,22:1
16Solutions and perturbation analysis for the nonlinear matrix equation X + ∑ i = 1 m A i ? X - 1 A i = I显示文摘Xuefeng Duan Chunmei Li Anping Liao 2011Applied Mathematics and Computation2011,,8:1
17On the nonlinear matrix equation X - ∑ i = 1 m A i ? X δ i A i = Q显示文摘Xuefeng Duan Anping Liao Bin Tang 2008Linear Algebra and Its Applications2008,,1:1
18MINIMIZATION PROBLEM FOR SYMMETRIC ORTHOGONAL ANTI-SYMMETRIC MATRICES显示文摘由同时使用概括的单个值分解和正规关联分解,我们导出最佳的近似解决方案 X̂ 的一个分析表达式,它两个都是矩阵方程 A<sup>T</sup>XA = B 和最好的近似的一个最少平方的对称的直角的反对称的解决方案到给定的矩阵 X * 。而且,为发现这个最佳的近似答案详细被描述的一个数字算法,和一个数字例子被介绍显示出我们的算法的有效性。Yuan Lei Anping Liao Lei Zhang 2007Journal of Computational Mathematics2007,25,2:1
19Least-Squares Solutions of the Matrix Equation A^TXA=B Over Bisymmetric Matrices and its Optimal Approximation显示文摘A real n×n symmetric matrix X=(x_(ij))_(n×n)is called a bisymmetric matrix if x_(ij)=x_(n+1-j,n+1-i).Based on the projection theorem,the canonical correlation de- composition and the generalized singular value decomposition,a method useful for finding the least-squares solutions of the matrix equation A^TXA=B over bisymmetric matrices is proposed.The expression of the least-squares solutions is given.Moreover, in the corresponding solution set,the optimal approximate solution to a given matrix is also derived.A numerical algorithm for finding the optimal approximate solution is also described.Yanyan Zhang Yuan Lei Anping Liao 2007Numerical Mathematics A Journal of Chinese Universities(English Series)2007,16,3:1
20Temporal logic and operation relations based knowledge representation for land cover change web services显示文摘Jun Chen Hao Wu Songnian Li Anping Liao Chaoying He Shu Peng 2013ISPRS Journal of Photogrammetry and Remote Sensing2013,,:1
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