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Distribution and Collection of China's Dinosaurs
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作者 HAO Ziguo FEI Hongcai +2 位作者 HAO Qingqing LIU Lian Susan TURNER 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2015年第6期2086-2087,共2页
It is estimated that the world has discovered more than1000 species and 800 genera of dinosaurs.Chinese scientists have named more than 170 species of dinosaurs,with 17 genera and 44 species of dinosaur egg fossils,35... It is estimated that the world has discovered more than1000 species and 800 genera of dinosaurs.Chinese scientists have named more than 170 species of dinosaurs,with 17 genera and 44 species of dinosaur egg fossils,35genera and 39 species of dinosaur footprints,since their first discovery in China in 1902. 展开更多
关键词 MORE Distribution and collection of China’s Dinosaurs THAN
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Chic Voyage——"Asahi Kasei· China Fashion Designer Creative awards" 2017 S/S collection Show Held in Beijing
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《China's Foreign Trade》 2016年第6期59-,共1页
'Asahi Kasei China Fashion Designer Creative awards'2017 S/S collection Show was held in Beijing Hotel to announce the theme of the nineteenth award-winning designer Richard Li’s works show on the evening of ... 'Asahi Kasei China Fashion Designer Creative awards'2017 S/S collection Show was held in Beijing Hotel to announce the theme of the nineteenth award-winning designer Richard Li’s works show on the evening of October 29,2016.This event is directly hosted by the China Fashion Week Organizing Committee,Asahi Kasei Corporation and Asahi Kasei Textile Corporation and Hong Kong Fashion Designers Association 展开更多
关键词 Designer China Fashion Designer Creative awards s/s collection show Held in Beijing Chic Voyage sHOW Asahi Kasei
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Comparison of in Clinic-Based Fecal Microbiome Collection Techniques for Increase in Study Participation and Utilization of Microbiome Analysis
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作者 Benjamin D. Besasie Dimpy P. Shah +1 位作者 Robin J. Leach Michael A. Liss 《Open Journal of Urology》 2019年第3期51-61,共11页
We compared the collection techniques of fecal specimens for DNA extraction and fecal microbiome analysis by utilizing the glove from a standard-of-care digital rectal exam (DRE) and the rectal swab from a pre-prostat... We compared the collection techniques of fecal specimens for DNA extraction and fecal microbiome analysis by utilizing the glove from a standard-of-care digital rectal exam (DRE) and the rectal swab from a pre-prostate biopsy bacterial rectal culture collected in clinical care settings. DNA yield from the swab technique compared to the glove technique yielded similar amounts of DNA (18.1 vs. 13.1 ng/μL, p = 0.06), slightly favoring the swab technique. However, utilizing DNA yield cutoffs of 15 ng/μL (37% vs. 29%, p = 0.18) and 30 ng/μL (15% and 9%, p = 0.16), we identified no differences in yield between the swab versus glove technique, respectively. Absorbance values for overall DNA quality were significantly different in favor of the glove technique (mean 1.6 vs. 2.0, p < 0.001). Using an absorbance value of 1.5 as an indication of DNA quality, only 26% (19/91) met the cutoff value using the swab group compared to 47.3% (53/112) if the glove technique was used (p < 0.001). Similar results occurred for the RNA quality with an absorbance value cutoff of 2.0 (2.2% vs. 30.4%, p < 0.001). To increase sampling feasibility and improve population sampling, gloves used from a DRE may be utilized as a consistent and efficient fecal DNA collection technique for fecal microbiome analysis. DNA yield and quality from the glove technique are comparable to—if not better than—rectal swab collection. 展开更多
关键词 FECAL MICROBIOME sTOOL collection Technique sWAB Glove UROLOGY Digital Rectal Exam 16s rRNA Gene sequencing
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Greeting Hongkong’s Return to China in 1997" Musical Works Collection
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《China & The World Cultural Exchange》 1996年第2期1-1,共1页
关键词 Greeting Hongkong’s Return to China in 1997 Musical Works collection
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China Fashion Week 2019 S/S Collection More opportunities for designers and brands
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《China Textile》 2018年第12期48-51,共4页
The 9-day China Fashion Week 2019 S/S Collection,themed with“Thriving Towards the Sun”,came to a successful close on November 2nd,2018,attracting more than 150 Chinese and foreign designers from over 140 brands to h... The 9-day China Fashion Week 2019 S/S Collection,themed with“Thriving Towards the Sun”,came to a successful close on November 2nd,2018,attracting more than 150 Chinese and foreign designers from over 140 brands to hold over 130 collection shows,professional design contests,press release,salon and forum as well as lectures in the Bird’s Nest Culture Center,the Banquet Hall of Beijing Hotel,751D?PARK,etc.The numbers of shows and designers,and the internationalized brands in this fashion week was the highest on record,showing its strong influence and attraction of the 21-year-old China Fashion Week in the new era that welcomes a promising contemporary Chinese fashion and Chinese creativity and a prosperous Chinese fashion industry development. 展开更多
关键词 The 9-day China FAsHION WEEK 2019 s/s collection Thriving Towards the sUN
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Ms Gu Ze's Art Collection
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《China Today》 2002年第9期66-67,共2页
IN the 1990s, art collecting began to be a popular pursuit in China. At that time a large number of middle-aged and young artists carried out artistic exploration, creating numerous works with new artistic concepts an... IN the 1990s, art collecting began to be a popular pursuit in China. At that time a large number of middle-aged and young artists carried out artistic exploration, creating numerous works with new artistic concepts and styles. Active artistic cre- 展开更多
关键词 Ms Gu Ze’s Art collection
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CD-ROM需要何种信息?请查找Compton'S Reference Collection
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作者 Bruce Brown 黄国胜 《个人电脑》 1996年第4期32-32,共1页
Compton's Reference Collection 1996版售价为60美元,但包括了令人印象深刻的参考工具,特别适合于家庭或办公室使用。 Compton's Reference Collection分为两个部分:Desk Reference Center和Business Center,它使用了各种探索... Compton's Reference Collection 1996版售价为60美元,但包括了令人印象深刻的参考工具,特别适合于家庭或办公室使用。 Compton's Reference Collection分为两个部分:Desk Reference Center和Business Center,它使用了各种探索工具,以帮助你获得有用的信息。 展开更多
关键词 ROM CD-ROM Compton’s Reference collection
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Hong Kong exhibitor debuts International star's accessory collection Hong Kong Fashion Week for Fall/Winter closed
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作者 Flora Zhao 《China Textile》 2018年第2期58-61,共4页
Organized by the Hong Kong Trade Development Council(HKTDC),
关键词 Hong Kong exhibitor debuts International star's accessory collection Hong Kong Fashion Week for Fall/Winter closed
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Molecular Typing of Brucella Suis Collected from 1960s to 2010s in China by MLVA and PFGE 被引量:13
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作者 LI Zhen Jun CUI Bu Yun +9 位作者 CHEN Hai CHEN Jing Diao ZHAO Hong Yan PIAO Dong Ri JIANG Hai ZHANG Li TANG Xu KE Chang Wen YAO zhen TIAN Guo Zhong 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2013年第6期504-508,共5页
Brucellosis is a bacterial anthropozoonosis usually caused by Brucella abortus, Brucella melitensis, Brucella suis and Brucella canis. Brucella suis, the causative agent of swine brucellosis, is classified into five b... Brucellosis is a bacterial anthropozoonosis usually caused by Brucella abortus, Brucella melitensis, Brucella suis and Brucella canis. Brucella suis, the causative agent of swine brucellosis, is classified into five biovars and preferentially infects different animal hostsIll. In China, brucellosis is a national notifiable communicable disease both in animals and in human. In 2009, 35 816 brucellosis cases were reported. The annual incidence was 2.7 per 100 000 population. 展开更多
关键词 MLVA Molecular Typing of Brucella suis collected from 1960s to 2010s in China by MLVA and PFGE 2010
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Fault tolerant controlled quantum dialogue against collective noise 被引量:3
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作者 Li-Wei Chang Yu-Qing Zhang +2 位作者 Xiao-Xiong Tian Yu-Hua Qian Shi-Hui Zheng 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第1期128-139,共12页
Quantum system is inevitably affected by the external environment in the real world.Two controlled quantum dialogue protocols are put forward based on logicalχ-type states under collective noise environment.One is ag... Quantum system is inevitably affected by the external environment in the real world.Two controlled quantum dialogue protocols are put forward based on logicalχ-type states under collective noise environment.One is against collectivedephasing noise,while the other is against collective-rotation noise.Compared with existing protocols,there exist several outstanding advantages in our proposed protocols:Firstly,theχ-type state is utilized as quantum channels,it possesses better entanglement properties than GHZ state,W state as well as cluster state,which make it difficult to be destroyed by local operations.Secondly,two kinds of logicalχ-type states are constructed by us in theory,which can be perfectly immune to the effects of collective noise.Thirdly,the controller can be offline after quantum distribution and permission announcement,without waiting for all the participants to complete the information coding.Fourthly,the security analysis illuminates that our protocols can not only be free from the information leakage,but also resist against the interceptand-resend attack,the entanglement-and-measure attack,the modification attack,the conspiring attack,and especially the dishonest controller’s attacks. 展开更多
关键词 controlled quantum dialogue collective noise logicalχ-type state dishonest controller’s attacks
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奖励-收集Steiner树问题的精确算法
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作者 曾宾 宁爱兵 +2 位作者 付振星 付馨懿 张惠珍 《系统管理学报》 CSSCI CSCD 北大核心 2024年第5期1242-1250,共9页
奖励-收集Steiner树问题是图的Steiner最小树问题的衍生,同时也是组合优化中的NP-hard问题。首先,提出该问题的数学性质并给出证明,利用数学性质能降低该问题的规模;其次,基于该问题的数学性质设计出上下界子算法、降阶子算法和回溯子算... 奖励-收集Steiner树问题是图的Steiner最小树问题的衍生,同时也是组合优化中的NP-hard问题。首先,提出该问题的数学性质并给出证明,利用数学性质能降低该问题的规模;其次,基于该问题的数学性质设计出上下界子算法、降阶子算法和回溯子算法,通过上下界子算法和降阶子算法可以降低该问题解空间的规模,从而缩短回溯子算法的搜索时间,进而降低求解该问题最优解的时间;最后,应用案例分析、算例分析以及算法分析与对比表明,所设计的算法不仅可以求出该问题的最优解,而且比没有考虑该问题数学性质的一般回溯算法的时间复杂度更低。 展开更多
关键词 奖励-收集steiner树 上下界子算法 降阶子算法 回溯子算法
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Collective Excitations in Spin-2 Bose-Einstein Condensates
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作者 HOU Jing-Min TIAN Li-Jun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第6X期1025-1036,共12页
The Green's functions and the correlation functions in spin-2 Bose-Einstein condensates at finite temperature are defined and the generalized Dyson-Beliaev equations are introduced. We discuss the spin conservation i... The Green's functions and the correlation functions in spin-2 Bose-Einstein condensates at finite temperature are defined and the generalized Dyson-Beliaev equations are introduced. We discuss the spin conservation in z direction and decouple the Green's functions and the generalized Dyson-Beliaev equations according to different spin conservations in z direction. The anomalous vertex functions are introduced and the self-energies are separated into the proper self-energies and the improper self-energies. The generalized Dyson-Beliaev equations are decoupled according to separation of the self-energies. We calculate the Green's functions step by step in the Bogoliubov approximation and discuss the collective excitations in spin-2 Bose-Einstein condensates in the polar, ferromagnetic, and cyclic cases, respectively. 展开更多
关键词 Bose-Einstein condensates collective excitations Green's function
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S盒NPNP等价匹配算法
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作者 贾皓珑 曾骁 +1 位作者 张菊玲 杨国武 《密码学报(中英文)》 CSCD 北大核心 2024年第4期845-860,共16页
根据S盒和布尔函数的相关性,S盒可以看作向量布尔函数.本文在基于布尔函数的NP等价匹配算法的基础上,设计了一个基于深度优先搜索的S盒NPNP等价匹配算法,用于判断两个不同的S盒是否NPNP等价,若等价则同时计算出NPNP变换方式.此算法的深... 根据S盒和布尔函数的相关性,S盒可以看作向量布尔函数.本文在基于布尔函数的NP等价匹配算法的基础上,设计了一个基于深度优先搜索的S盒NPNP等价匹配算法,用于判断两个不同的S盒是否NPNP等价,若等价则同时计算出NPNP变换方式.此算法的深度优先搜索结构基于树,且在进入深度优先搜索之前根据规则仅生成了部分可能存在解的路径,并在计算过程中实时判断以当前结点为新起点的剩余路径是否可能存在解,若不存在就直接剪枝并回溯避免了继续计算的时间开销,故其时间复杂度取决于树结点的个数.不同于仿射变换,本文提出的算法对于判断非可逆S盒是否NPNP等价的计算复杂度与判断可逆S盒是否NPNP等价的计算复杂度一致.实验方面,本文使用现在各个密码算法中常用的S盒进行实验,实验结果证实了本文方法的有效性,且计算过程远远优于直接搜索. 展开更多
关键词 s盒NPNP等价匹配 布尔匹配 深度优先搜索 剪枝回溯
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Research on the Characteristics of Collective Impression of China in the Perspective of Modern Western Peregrinators
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作者 LI Chaojun 《Journal of Landscape Research》 2022年第2期75-79,84,共6页
Since modern times,western countries had influenced the formulation of rules for travelling China through a series of gunboat diplomacy and a series of unequal treaties,and promoted the formation of three major peregr... Since modern times,western countries had influenced the formulation of rules for travelling China through a series of gunboat diplomacy and a series of unequal treaties,and promoted the formation of three major peregrination routes,namely south China centered on Guangzhou and Shanghai,southwest China centered on the Yangtze River and Chengdu,and north China centered on Beijing and the Great Wall.Overpopulation,lack of curiosity and knowledge,difficulties in board and lodging,good onlookers,beauty of exotic scenery,and intensive farming were the common perceptions of the collective impression of China by the three types of peregrinators coming to China.These perceptions were the historical map for the west to construct the image of modern China,and had a profound influence on the formation of China’s image of “the inferior other”. 展开更多
关键词 Peregrinator collective impression China’s image
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集体经营性建设用地入市农户满意度影响因素研究——基于Logistic-ISM模型的分析
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作者 周香梅 王恒伟 刘秀华 《西南大学学报(自然科学版)》 CAS CSCD 北大核心 2024年第7期57-70,共14页
农户满意程度可以反映政策改革成效,探究农户集体经营性建设用地入市满意度影响因素,有助于评价政策实施效果,同时对提升农村发展和农民幸福感也有一定的现实意义.采用问卷调查和访谈的方式,选取重庆市大足区作为研究区域,基于Logistic... 农户满意程度可以反映政策改革成效,探究农户集体经营性建设用地入市满意度影响因素,有助于评价政策实施效果,同时对提升农村发展和农民幸福感也有一定的现实意义.采用问卷调查和访谈的方式,选取重庆市大足区作为研究区域,基于Logistic模型确定农户满意度的影响因素,结合ISM模型分析各影响因素之间的层次关系,对农民的政策实施满意度影响因素进行实证分析.研究结果显示:(1)针对入市实施效果,绝大部分农户持满意态度,不满意的地方集中在收益分配不及时和环境污染方面;(2)家中是否有村干部、生态环境变化情况、是否参与表决、分配公平性、入市实际收益、程序透明性、入市风险存在情况、对入市土地所有者的认知对入市农户满意度有显著影响.其中对入市土地所有者的认知、入市风险存在情况、入市实际收益为表层直接因素,中层间接因素有生态环境变化情况、是否参与表决、分配公平性以及程序透明性,家中是否有村干部为深层根源因素.应进一步完善土地产权制度,明晰入市到期后土地权属问题;健全监督管理机制,建立集体经营性建设用地入市单位的产业目录和准入标准制度;完善收益分配机制,制定集体土地入市指导性分配意见;将村集体负责人纳入政府基层领导队伍体系,提高程序透明性. 展开更多
关键词 集体经营性建设用地入市 满意度 影响因素 Logistic-IsM模型 大足区
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基于B/S结构的中医药信息采集系统 被引量:2
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作者 倪晨 邱鹏 曹慧 《山东科学》 CAS 2013年第4期56-59,70,共5页
将MyEclipse与SQL Server 2000组合作为系统的开发工具,通过运用相关技术对数据进行先抽取、后标准化处理的方法,研究开发了中医药信息采集系统。该系统能够从互联网上采集中医药信息,并根据设定的规则从网页中分析提取出特定的信息并... 将MyEclipse与SQL Server 2000组合作为系统的开发工具,通过运用相关技术对数据进行先抽取、后标准化处理的方法,研究开发了中医药信息采集系统。该系统能够从互联网上采集中医药信息,并根据设定的规则从网页中分析提取出特定的信息并整理存放在指定的数据库中,实现了对中医药信息较为有效的分析、总结和管理。 展开更多
关键词 中医药 信息采集 B s结构
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基于B/S的企业数据采集系统设计与实现 被引量:5
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作者 胡金明 李健 《自动化与仪表》 北大核心 2010年第5期43-46,共4页
通过对C/S结构与B/S结构进行比较,为采集系统的软件复用和快速开发提供了体系结构上的支持。随后根据企业对生产线上产品信息的应用需求提出了基于B/S的实时数据采集系统的设计方案,最后对关键技术的实现进行了详细的介绍。目前此系统... 通过对C/S结构与B/S结构进行比较,为采集系统的软件复用和快速开发提供了体系结构上的支持。随后根据企业对生产线上产品信息的应用需求提出了基于B/S的实时数据采集系统的设计方案,最后对关键技术的实现进行了详细的介绍。目前此系统在企业运行效果良好,成功地解决了管理层和生产现场的数据同步问题,使企业管理层可以根据生产线的具体情况及时做出决策。 展开更多
关键词 数据采集 B/s结构 软件复用 企业信息化
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Omeka S在特藏资源库建设中的实践研究——以中国年谱数据库平台的建设为例 被引量:3
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作者 鲁丹 张毅 《图书馆杂志》 CSSCI 北大核心 2022年第9期52-58,共7页
Omeka S是一款适用于图书馆、博物馆和档案馆等领域特藏资源建设中的开源内容管理软件。本文首先介绍Omeka S及其在各领域使用的典型案例,然后介绍年谱数据库平台,最后详细介绍使用Omeka S构建中国年谱数据库平台的过程,以期给国内其他... Omeka S是一款适用于图书馆、博物馆和档案馆等领域特藏资源建设中的开源内容管理软件。本文首先介绍Omeka S及其在各领域使用的典型案例,然后介绍年谱数据库平台,最后详细介绍使用Omeka S构建中国年谱数据库平台的过程,以期给国内其他机构使用Omeka S建设数字馆藏平台提供借鉴。 展开更多
关键词 特藏资源 年谱 Omeka s 开源内容管理系统
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B/S模式下博物馆馆藏数据库管理系统设计 被引量:8
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作者 任丽红 赵丽芳 《现代电子技术》 北大核心 2019年第15期157-159,164,共4页
为了提高馆藏的管理水平,在分析国内外现有博物馆管理系统状况的基础上,以现有主要业务流程作为需求信息,构建博物馆馆藏数据库的E-R模型,并采用Oracle数据库的FormsBuilder进行具体实现。设计的系统采用B/S体系架构,包括库房数据库、... 为了提高馆藏的管理水平,在分析国内外现有博物馆管理系统状况的基础上,以现有主要业务流程作为需求信息,构建博物馆馆藏数据库的E-R模型,并采用Oracle数据库的FormsBuilder进行具体实现。设计的系统采用B/S体系架构,包括库房数据库、修复数据库、流动数据库、在线数据库和统计报表数据库等。以某地级市博物馆为例进行具体应用,用户可以使用Web浏览器访问基于B/S架构的博物馆馆藏Oracle数据库系统,从而能够便捷、有效地解决馆藏数据的管理和维护问题。 展开更多
关键词 博物馆 数据库管理 ORACLE 馆藏数据库 B/s架构 E-R模型
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基于C/S的计重收费交通量数据采集系统 被引量:2
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作者 武奇生 王秋才 +1 位作者 席筱利 王丹 《微计算机信息》 北大核心 2006年第08X期140-142,共3页
针对传统的连续式交通量调查的缺点,基于C/S模式,采用Access和SQLServer数据库,设计了一个计重收费交通量数据采集系统,并进行了工程实现。介绍了系统的工作原理,描述了软件功能,设计了数据库结构,并给出实现流程。最后通过实际交通量... 针对传统的连续式交通量调查的缺点,基于C/S模式,采用Access和SQLServer数据库,设计了一个计重收费交通量数据采集系统,并进行了工程实现。介绍了系统的工作原理,描述了软件功能,设计了数据库结构,并给出实现流程。最后通过实际交通量数据处理结果表明该系统能够实现24小时连续不间断数据采集,保证了交通量数据采集的准确性和可靠性。 展开更多
关键词 计重收费 交通量 C/s模式 数据采集 数据库
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