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| 1 | Residual or recurrent cerebellar low-grade glioma in children after tumor resection: is re-treatment needed? A single center experience from 1983 to 2003显示文摘 | Benesch M Eder HG Sovinz P Raith J Lackner H Moser A Urban C | 2006 | 中国神经肿瘤杂志2006，4，3： | 15 |
| 2 | Landuse/landcover changes in Zhangye oasis of Hexi Corridor显示文摘Taking two f alse color composite Landsat 5 TM (Thematic Mapper) images of band 4,3,2 taken in 1995 and 2000 as data resources, this paper carried out study on LUCC of Zhan gye oasis in recent five years by interpretation according to land reso urces classification system of 1:100,000 Resources and Environmental Data base of the Chinese Academy of Sciences. The results show that great changes have taken place in landuse/landcover in Zhangye oasis since 1 995: (1) Changes of landuse structure show that cropland and land for urban c onstruction and built-up area increased, on the contrary, water area an d grassland decreased. These changes reflect the deterioration of eco-e nvironment and the acceleration of urbanization, and also indicate the problems existing in the arrangement of water and land resources betw een the upper and lower reaches of the Heihe River. (2) Regional diff erences of landuse/landcover are evident, characterized by following asp ects: in Sunan County located in Qilian Mountain area, unused land an d grassland decreased, but cropland and land for urban construction an d built-up area increased. In Minle and Shandan counties located in f oothills, unused land, water area and cropland decreased, but grassland and land for urban construction and built-up area increased. In Zhan gye City, Linze County and Gaotai County located in plain area of th e middle reaches of the Heihe River, unused land, water area and gra ssland decreased, while woodland, cropland and land for urban construction and built-up area increased. | MENG Jijun,WU Xiuqin,LI Zhengguo(Department of Urban and Environmental Scien ce, Peking University, Laboratory of Analysis and Simulation of Earth Surface P rocesses, the Ministry of Education, Beijing 100871, China) | 2003 | Journal of Geographical Sciences2003，13，1： | 9 |
| 3 | URBAN COMPETITIVE PATTERN AND ITS CHANGES IN CHINA显示文摘With the national economy’s transition from a planning one to a market one, the factors affecting regional economic pattern has changed greatly. In this paper we first construct an index system for evaluating competitiveness of Chinese cities based on modern competitive advantage theory. With principal component analysis and cluster analysis methods, we compare the factors affecling cities’ integrated competitiveness in 1990 and 1997. We find that four major factors are capital (including investment, FDI and urban financial revenue ), urban ithestructure (transporiation and communication, urbanization level, education etc. ), industrial performance and structure, degree of market openness and that these factors have become more advanced and complicated since 1990. Most Chinese cities are transforming from productive factors-oriented type to investment-oriented type and a few are becoming innovation oriented. The integrated competitiveness is closely related to cities’ scale, urban function, regional policy and degree of market openness and displays an uneven spatial pattern. The difference between the south and the north and the difference between the west and the east co-exist bul the former has been more larger. Finally, we discuss the mechanism behind the pattern and attribute the unevenness to change of factors dominating the cities’ compehtiveness regional innovation capacity and geographical differenceof traditional culture. | DOU Wen-zhang LI Guo-ping GAN Ying-jin WANG Li-ming YANG Kai-zhong(Department of Urban and Environmental Sciences, Peking University, Beijing 100871, P R. China) | 2000 | Chinese Geographical Science2000，10，2： | 5 |
| 4 | Sensitivity analysis of parameters and contrasting performance of ground filtering algorithms with UAV photogrammetry-based and LiDAR point clouds显示文摘Most ground filtering algorithms are primarily designed for airborne LiDAR point cloud processing and their successful use in identifying ground points from photogrammetric point clouds remains questionable.We compared six ground filtering algorithms implemented in Metashape,ArcGIS,CloudCompare,LAStools,and PDAL.We used UAV photogrammetry-based(acquired under leaf-off conditions)and airborne LiDAR(leaf-on)point clouds of the same area to:(i)compare accuracy of generated DTMs;(ii)evaluate the effect of vegetation density and terrain slope on filtering accuracy;and(iii)assess which algorithm parameters have the greatest effect on the filtering accuracy.Our results show that the performance of filtering algorithms was affected by the point cloud type,terrain slope and vegetation cover.The results were generally better for LiDAR(RMSE 0.13–0.19 m)than for photogrammetric(RMSE 0.19–0.23 m)point clouds.The behavior in varying vegetation and terrain conditions was consistent for LiDAR point clouds.However,when applied on photogrammetric point clouds,the algorithms’behavior was inconsistent,especially in areas of steep slope(except for the Progressive Triangulated Irregular Network in LAStools).Parameters related to the selection of the initial minimum elevation ground points were the most influential in all algorithms and point clouds. | Petr Klápště Michal Fogl Vojtěch Barták Kateřina Gdulová Rudolf Urban Vítězslav Moudrý | 2020 | International Journal of Digital Earth2020，13，12： | 2 |
| 5 | Infection of a Human Hepatoma Cell Line by Hepatitis B Virus 显示文摘 | GRIPON P RUMIN S URBAN S | 2002 | Proc Natl Acad Sci USA2002，99，15： | 1 |
| 6 | Double-blind study of the safety of clopidogrel with and without a loading dose in combination with aspirin compared with ticlopidine in combination with aspirin after coronary stenting : the clopidogrel aspirin stent international cooperative study (CLASSICS) 显示文摘 | RUPPRECHT HJ URBAN P | 2000 | Circulation2000，102，6： | 1 |
| 7 | Randomized evaluation of anticoagulation versus antiplatelet therapy after coronary stent implantation in high - risk patients : the multicenter aspirin and ticlopidine trial after intracoronary stenting (MATI'IS) 显示文摘 | Urban P Macaya C Rupprecht H | 1998 | Circulation1998，98，20： | 1 |
| 8 | Prospectively gated transverse coronary CT angiography versus retrospectively gated helical technique: improved image quality and reduced radiation dose显示文摘 | Earls J P Berman E L Urban B A | 2008 | Radiology2008，246，3： | 1 |
| 9 | Double-blind study of the safety of clopidogrel with and without a loading dose in combination with aspirin compared with ticlopidine in combination with aspirin after coronary stenting:the clopidogrel aspirin stent international co-opreative study(CLASSICS)显示文摘 | Rupprecht HJ Urban P | 2000 | Circulation2000，102，6： | 1 |
| 10 | In-hospital complicalions of percutaneous intraaortic balloon counterpulsation显示文摘 | ARCEO A URBAN P DORSAZ PA | 2003 | Angiology2003，45，5： | 1 |
| 11 | Randomized evaluation of anticoagulation in high-risk patients:The multicenter aspirin and ticlopididine trial after intracoronary stenting(MATTIS)显示文摘 | Urban P Macaya C Rupprecht HJ | 1998 | Circulation1998，98，20： | 1 |
| 12 | Emergence of carbapenem-resistant Klebsiella species possessing the class A carbapenem-hydrolyzing KPC-2 and inhibitor-resistant TEM-30 β-lactamases in New York city显示文摘 | Bradford P A Bratu S Urban C | 2004 | Clin Infec Dis2004，39，1： | 1 |
| 13 | Effect of hip hemiarthroplasty on articular cartilage and bone in a canine model显示文摘 | Minihane K P Turner T M Urban R M | 2005 | Clin Orthop Relat Res2005，，437： | 1 |
| 14 | Over- view of potential oncomarkers for detection of early stages of ovarian cancer显示文摘 | Urban P Bilecovi-Rabajdovci M Stefekovi Z | 2011 | Klin Onkol2011，24，2： | 1 |
| 15 | Paired-end mapping reveals extensive structural variants detection in the human genome 显示文摘 | KORBEL J O URBAN A E AFFOURTIT J P | 2007 | Science2007，318，5849： | 1 |
| 16 | Vehicle lateral control for automated highway systems 显示文摘 | O'Brien R T Iglesias P A Urban T J | 1996 | IEEE Trans Contr Syst Technol1996，4，3： | 1 |
| 17 | Construction of internal cDNA competitors for mearuring IL-10 and IL-12 cytokine gene expression in swine显示文摘 | Urban J F Murtaugh M P | 1998 | Vet Immunol Immunopathol1998，65，： | 1 |
| 18 | Successful unrelated cord blood transplantation in a-year-old boy with Evans syndrome refractory to immunosuppression and double autologous stein cell transplantation 显示文摘 | Urban C Laekner H Sovinz P | 2006 | Eur J haematol2006，76，： | 1 |
| 19 | Construction of internal cDNA competitors for mearuring ID 10 and IL-12 cytokine gene expression in swine显示文摘 | Mansfield L S Urban J F Murtaugh M P | 1998 | Vet Immunol Immuno-Pathol1998，65，： | 1 |
| 20 | Electrophysiological brainstem investigations in obstructive sleep apnoea syndrome显示文摘 | Urban P P Schlegel J Ellrich J | 1996 | J Neurol1996，243，2： | 1 |
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