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Multifactorial analysis of recurrence of cholecystolithiasis in Shanghai area

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World Journal of Gastroenterology 1999年第1期5卷 36-38页

作者： CHEN Pei, WANG Bing Sheng and HE Lian Qi

ＮＴＲＯＤＵＣＴＩＯＮＷｉｔｈｔｈｅｃｌｉｎｉｃａｌａｐｐｌｉｃａｔｉｏｎｏｆｄｉｆｅｒｅｎｔｋｉｎｄｓｏｆｎｏｎｓｕｒｇｉｃａｌｔｈｅｒａｐｙ，ｓｕｃｈａｓｏｒａｌｄｉｓｏｌｕｔｉｏｎｏｆｇａｌｓｔｏｎｅ（ＯＤＧ... 详细信息

ＮＴＲＯＤＵＣＴＩＯＮＷｉｔｈｔｈｅｃｌｉｎｉｃａｌａｐｐｌｉｃａｔｉｏｎｏｆｄｉｆｅｒｅｎｔｋｉｎｄｓｏｆｎｏｎｓｕｒｇｉｃａｌｔｈｅｒａｐｙ，ｓｕｃｈａｓｏｒａｌｄｉｓｏｌｕｔｉｏｎｏｆｇａｌｓｔｏｎｅ（ＯＤＧ），ｅｘｔｒａｃｏｒｐｏｒｅａｌｓ...

关键词： cholecystolithiasis/therapy recurrence follow up studies

Policy Transition from Gated Community to Block System:Situation Study and Reform Approaches

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China City Planning Review 2016年第4期25卷 36-43页

作者： Wu Xiaolin Li Caige(译) School of Public Administration Central South UniversityChangshaP.R.China 不详

The policy transition from gated community to block system, which is related to intergenerational justice and sustainable urban development, has aroused many controversies concerning public space. Through questionnaires and online-opinion survey, this paper fi nds that the public generally has a misunderstanding on China's new "community opening up policy." In detail, there is a remarkable group difference in the public's evaluation on this policy transformation. Those who have already bought houses mostly disapprove of the policy, while other groups have various considerations based on their own interest. The public's attitudes always have been infl uenced by different policy options and the ambiguity in policy implementation. Since the adjustment of urban space involves a wide range of interests, the relationship between individual interest and public interest and that between the government and civilians have become complicated when some property owners use the immature "common interest" as an excuse to protect their interests. The situation becomes even more complex when the power and voice is unbalanced. Thus, rational communication should be promoted to guarantee the procedural justice of policies, and systematic reform should also be promoted to guarantee the substantive fairness of policies.

关键词： gated community block system community opening up urban space

Study on energy up-conversion in Yb, Ho:YAG crystal

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Chinese Optics Letters 2003年第3期1卷 180-182页

作者：黄莉蕾邬良能付晏彬 Optoelectronic Division China Institute of MetrologyHangzhou 310034 Department of Optical Engineering Zhejiang UniversityHangzhou 310027

Optic parameters, such as the probabilities of radiative and non-radiative transition and the cross-relaxation probability between Yb3+ and Ho3+ ions in Yb,Ho:YAG crystal, are calculated on the basis of Judd-Ofelt and Dexter theories. The energy up-conversion process is analyzed by solving the transition rate-equations. The results show that (1) the intensity of the green fluorescence relates to the square of the concentration of the active ions; (2) the intensity increases with the concentration of sensitive ions as well, but the increasing rate goes rather too slow; (3) the efficiency of the energy up-conversion relates with the speed of the energy up-conversion and the quantum efficiency of the transiting from upper level to lower level.

关键词： Ho of Study on energy up-conversion in Yb up YAG in on

基于SURF特征和Delaunay三角网格的图像匹配

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自动化学报 2014年第6期40卷 1216-1222页

作者：闫自庚蒋建国郭丹合肥工业大学计算机与信息学院合肥230009

图像特征匹配的核心是通过距离函数实现在高维矢量空间进行相似性检索.重点研究提取好的特征点并快速准确地找到查询点的近邻.首先,提取图像的多量、有区别且稳健的SURF(Speeded up robust feature)特征点,并将特征点凸包进行Delaunay剖... 详细信息

图像特征匹配的核心是通过距离函数实现在高维矢量空间进行相似性检索.重点研究提取好的特征点并快速准确地找到查询点的近邻.首先,提取图像的多量、有区别且稳健的SURF(Speeded up robust feature)特征点,并将特征点凸包进行Delaunay剖分.然后,对Delaunay三角边抽样、聚类、量化并构建索引.通过票决算法,将点对匹配与否映射到矩阵中以解决距离度量没有利用数据集本身所蕴含的任何结构信息和搜索效率相对较低的问题.结合SURF算法和Delaunay三角网提出一种特征匹配的新方法,在标准图像集上的实验验证,在耗时基本相同的情况下,提取的特征点较多且正确匹配率较高.

关键词： SURF(Speeded up robust feature)特征 Delaunay三角网格点对特征匹配

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基于自然场景在线学习的跟踪注册技术

软件学报 2016年第11期27卷 2929-2945页

作者：桂振文刘越陈靖王涌天中国电子科技集团公司第七研究所广东广州510310 北京理工大学光电学院北京100081 北京市混合现实与新型显示工程技术研究中心(北京理工大学) 北京100081

三维注册是移动增强现实的关键技术之一,提出了一种在线学习的跟踪注册方法,能够精确地对自然场景进行跟踪注册.该方法首先改进SURF(speeded up robust features)描述符匹配方法,提高初始注册矩阵的正确性;然后,通过对场景进行有效的在... 详细信息

三维注册是移动增强现实的关键技术之一,提出了一种在线学习的跟踪注册方法,能够精确地对自然场景进行跟踪注册.该方法首先改进SURF(speeded up robust features)描述符匹配方法,提高初始注册矩阵的正确性;然后,通过对场景进行有效的在线学习,提高注册精度;最后,利用前一帧的注册矩阵快速恢复已丢失的关键点,以提高注册的速度.实验结果表明,该方法能够较为流畅地对视频帧进行跟踪,并能保持较好的注册精度.

关键词：跟踪注册 SURF(speeded up robust features)描述符在线学习

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up

海洋世界 2015年第1期 46-51页

作者：凌晨

2015年深蓝文学栏目将连载凌晨科幻系列小说。小说描述近未来时期。人类为了争夺生存资源而展开的一场世纪大战。但与以往的战争不同，这场战争没有硝烟，甚至没有人类的直接对抗。有的是生物战、基因战、气候战……海洋、海洋生物以及... 详细信息

2015年深蓝文学栏目将连载凌晨科幻系列小说。小说描述近未来时期。人类为了争夺生存资源而展开的一场世纪大战。但与以往的战争不同，这场战争没有硝烟，甚至没有人类的直接对抗。有的是生物战、基因战、气候战……海洋、海洋生物以及整个大自然，都成为人类战争的武器。出乎人类意料，大自然也加入了战争之中，各种生物不再沉默，它们中的一部分团结齐心，由智力进化的海豚、章鱼率领，开始了对人类的反攻。

关键词：彩虹鱼身体姿态一丛丛五彩斑斓跳出来 up 一团团胜利女神蟹壳这个世界

一种智能摄像机网络中重叠区域的快速探测方法(英文)

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仪器仪表学报 2007年第7期28卷 1153-1158页

作者：周昌陈耀武 Kwei Jay Lin KweiJay Lin浙江大学数字技术及仪器研究所 Dept.of Electrical Engineering and Computer Science Uiversity of CaliforniaIrvineCalifornia 92697美国

重叠区域探测是构建多摄像机传感网络的一个基本问题。多摄像机协作视觉分析任务中,摄像机必须知道相互位置关系。本文提出了一个基于图像匹配快速重叠探测方法,该方法适用于非标定的摄像机网络。该方法利用关键点的局部图像描述匹配完... 详细信息

重叠区域探测是构建多摄像机传感网络的一个基本问题。多摄像机协作视觉分析任务中,摄像机必须知道相互位置关系。本文提出了一个基于图像匹配快速重叠探测方法,该方法适用于非标定的摄像机网络。该方法利用关键点的局部图像描述匹配完成重叠区域标定。其中关键点探测使用了最新的SURF(speedup robust feature)算法,该方法适用于实时计算。局部图像描述采用简单易算的LPB统计直方图,该局部图像描述具备光照,旋转不变特征。本文在实际的智能摄像机网络进行了测试,取得了良好的效果。

关键词：重叠区域探测智能摄像机网络 LBP(local binary pattern) SURF(speeded up robust feature)

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对儿童运动代谢的新认识(英文)

Journal of Sport and Health Science 2012年第1期1卷 18-26页

作者： Neil Armstrong Alan R.Barker Children’s Health and Exercise Research Centre University of Exeter

Research in paediatric exercise metabolism has been constrained by being unable to interrogate muscle in vivo.Conventionally,research has been limited to the estimation of muscle metabolism from observations of blood and respiratory gases during maximal or steady state exercise and the analysis of a few muscle biopsies taken at rest or post-exercise.The purpose of this paper is to review how the introduction of up>31up>P-magnetic resonance spectroscopy and breath-by-breath oxygen uptake kinetics studies has contributed to current understanding of exercise metabolism during growth and maturation.Methodologically robust studies using up>31up>P-magnetic resonance spectroscopy and oxygen uptake kinetics with children are sparse and some data are in conflict.However,it can be concluded that children respond to exercise with enhanced oxygen utilization within the myocyte compared with adults and that their responses are consistent with a greater recruitment of type I muscle fibres.Changes in muscle metabolism are age,maturation- and sex-related and dependent on the intensity of the exercise challenge.The introduction of experimental models such as "priming exercise" and "work-to-work" transitions provide intriguing avenues of research into the mechanisms underpinning exercise metabolism during growth and maturation.

关键词： Children Magnetic resonance spectroscopy Oxygen up

Long-term eficacy of plasma-derived hepatitis B vaccine among Chinese children:a 12-year folow-up study

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World Journal of Gastroenterology 1999年第2期5卷 77-78页

作者： LIAO Su Su 1, LI Rong Cheng 2, LI Hui 1, YANG Jin Ye 2, ZENG Xian Jia 1, GONG Jian 2, WANG Shu Sheng 2, LI Yan Ping 2 and ZHANG Kong Lai 1

ＩＮＴＲＯＤＵＣＴＩＯＮＴｏｅｖａｌｕａｔｅｌｏｎｇｔｅｒｍｅｆｉｃａｃｙｏｆａｐｌａｓｍａｄｅｒｉｖｅｄｈｅｐａｔｉｔｉｓＢｖａｃｃｉｎｅａｎｄｐｒｏｖｉｄｅｅｖｉｄｅｎｃｅｆｏｒｄｅｃｉｓｉｏｎｍａｋｉｎｇ... 详细信息

ＩＮＴＲＯＤＵＣＴＩＯＮＴｏｅｖａｌｕａｔｅｌｏｎｇｔｅｒｍｅｆｉｃａｃｙｏｆａｐｌａｓｍａｄｅｒｉｖｅｄｈｅｐａｔｉｔｉｓＢｖａｃｃｉｎｅａｎｄｐｒｏｖｉｄｅｅｖｉｄｅｎｃｅｆｏｒｄｅｃｉｓｉｏｎｍａｋｉｎｇｏｎｔｈｅｖａｃｃｉｎｅｂｏｏｓｔ...

关键词： Hepatitis B vaccines hepatitis B virus HBsAg follow up study