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NOTE ON A NEW PROETID FROM UPPER DEVONIAN OF KWANGSI

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古生物学报 1955年第3期 35-36页

作者： W.T.CHANG Academia Sinica Institute of palacontology

In 1950,some interesting specimens of small trilobites have been forwardedthe writer for examination by Prof.C.C.Y(?) which form the subject of the *** specimens were collected by Prof.Y(?) from the PisoliticLimestone Series near Fonglingshan,Lingchuan-Hsien,Kwangsi *** trilobite fossils were found in association with some ostracods and *** ostracods have been recently identified by *** as Richterinasubstriatula Hou,*** Hou and Healdia lingchuanensis Houassigning to the Upper Devonian *** is interesting that the evidence of thetrilobites points also to the Upper Devonian age.

关键词： Upper writer shallow marginal border backward erior straight outline branches

Analysis of motion on agile shell-feeding system

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Journal of Marine Science and Application 2005年第3期4卷 47-52页

作者： LUO A-ni LIU He-ping ZHANG Jia-tai HU Sheng-hai LI Shou-ren School of Mechanical and Electrical Engineering Harbin Engineering University Harbin 150001 China

Since cannon drum of agile shell-feeding system rotates frequently and intermittently, its motion must be steady. outline of driving cam determines the motion of cannon drum, so it is necessary to select the proper outline of cam. Through analysis of parabolic outline and cycloid outline of the cams, the outline that combines the two curves is obtained. According to the demand of production,the value of the outline is revised, and then the method of fitting curve is used to get the expression of the angle of cam and the displacement of the driven part. Through analyzing the motion of the cannon drum, it is suggested that the angle of the cam is proportion to the displacement of the driven part. The cam with the specially derived outline can move steadily.

关键词： cam outline shell drum agile shell-teeding system

China's High-Tech Industry

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China's Foreign Trade 1994年第2期 9-10页

作者： Sun Suhui High-Tech Planning Joint Office State Science and Technology Commission

In 1986, China began to implement its Fast high-tech research and development programme, the 863 Programme. Its objective was to lay a solid foundation for the take-off of the national economy by the end of this centu... 详细信息

关键词： programme breakthrough beginning outline cording 以力 encourage automation nitride secure

Recommendation for Establishing a National Bioethics Commission

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Bulletin of the Chinese Academy of Sciences 2017年第3期31卷 168-171页

Commissioned by the Academic Divisions of the Chinese Academy of Sciences(CAS),a task force headed by CAS Member LIN Qishui recently conducted a study entitled Studies of Bioethical Issues and Advances of Life Science *** on the results of the study,the research team has recommended that a National Bioethics Commission be created under the State *** following paragraphs outline the reasons for the recommendation.

关键词： Recommendation entitled ethics headed created commission supervision ethical outline reasons

Target Recognition and Localization of International Standard Platform Humanoid Robot

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Target Recognition and Localization of International Standar...

Official “Order for rare earth integration” –Guangdong to Complete Rare Earth Integration with in Four Years

第24届中国控制与决策会议

作者： Shuying Zhao, Xiaotao Wang, Han Su, Gaoyang Dai, Ziyi Feng College of Information Science and Engineering, Northeastern University, Shenyang Liaoning, China. 110819

According to the rules of Chinese robot competition and RoboCup open standard platform league competition, the problem of the target recognition and localization with the NAO robot need to be solved. Through setting white balance of the robot’s vision sensor, the images are processed and threshold’s segmentation is got. Then the outline of the target can be got and the centroid is calculated. Thus the position of the target is located by structuring the geometric relation model between robot and targets.

关键词： RoboCup NAO robot threshold outline recognition and localization

来源： cnki会议评论

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China Nonferrous Metals Monthly 2014年第1期 6-7页

Guangdong Provincial Rare Earth Industrial Group,established in February this year,has recently received an "order" from the government to basically complete the integration of the province’s rare earth industrial re... 详细信息

关键词： Guangdong Official basically outline publicly list

How to Develop a Good Speech in English Speaking

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海外英语 2011年第8X期 13-13,30页

作者：陈慧娟河南省永城市永城职业学院河南永成476600

On different occasions, you will face challenge in speaking. Good speaking can leave a favorable impression on the others. Exactly, trying to be a experienced speaker is a key to one's successful life or career. But there are so many difficulties we would encounter in the process of speaking, thus how to develop a perfect speech is a sticking question for most of speakers. This article can help you to find ways to being a good speaker.

关键词： outline self-confidence stage fright practice

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A Vision Statement

Beijing Review 2023年第42期66卷 26-27页

作者： Yuan Yuan 不详

Actively building a global community of shared future In a white paper released during a press conference on September 26,China outlined its proposals for solving some of the world’s most pressing challenges.

关键词： challenges white outline

市场结构与技术提升 ——来自IT业2nd mobile conversions的证据

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市场结构与技术提升 ——来自IT业2nd mobile conversions的证据

作者：李锺旭复旦大学

学位级别：硕士

新技术的发展不仅是影响人们生活和市场结构的主要因素,现存企业的兴亡、新兴企业的成败也都依赖于此。新技术的产生可能削弱或破坏已有的市场。在1st mobileconversions时,随着mp3,DMB,导航仪,手机等设备的结合,许多企业不得不面临倒... 详细信息

新技术的发展不仅是影响人们生活和市场结构的主要因素,现存企业的兴亡、新兴企业的成败也都依赖于此。新技术的产生可能削弱或破坏已有的市场。在1st mobileconversions时,随着mp3,DMB,导航仪,手机等设备的结合,许多企业不得不面临倒闭。因为有了融合各种设备的多功能手机,人们不再需要其他的设备。mp3,DMB,导航仪的市场因此被削弱甚至消灭:同时,技术的革新还可能开辟新的市场。例如,计算机技术和网络技术使得网上购物的市场应运而生;此外,新技术还会给市场集中度带来影响。通常,增加市场规模的技术导致市场集中度的提高,减小市场规模的技术带来市场集中度的降低。除此之外,技术对市场还有许多其他影响,两者的关系十分密切。基于以上原因,已有许多学者探讨过新技术同消费者态度、市场转变以及产业变革间的关系。本文中,笔者首先找出了影响2nd mobile conversions的市场和产品,并考察了市场和技术间的关系。然后,分别建立了市场规模、技术变革之间以及市场集中度与技术变革之间的M atrix。最后,根据上述结果分析得出本文的结论,以实现本文的主要目的,即:考察关于技术转变带来市场变革的各理论是否仍然有效,如果理论已经失效,找出失效的原因。

关键词：市场结构集中度消费者态度新兴企业产业变革 Android indust customer outline companies