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中国科学院技术科学部集成电路专题组 《中国科学院院刊》1990,5(1):26-28
微电子技术是当今世界发展高技术的不可缺少的基础.没有微电子技术,几乎所有其它高技术都难以发展.微电子产业是国民经济和国防建设的基础产业之一.它是我国发展农业、能源、交通、通讯、主要原材料等和改造传统产业所不可缺少的.集成电路是微电子技术和产业的核心.集成电路在我国大量应用是不可避免的,也是不可代替的.像超大规模集成电路这样的高技术是买不到,引不进的.发展集成电路必须主要依靠自己的力量.我国要独立自主、自力更生地发展国民经济,非发展集成电路不可.在我国,发展集成电路这件事,在高技 相似文献
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对实蕨属Bolbitis的17种植物的孢子进行了扫描电镜观察。根据孢子周壁特征,中国产实蕨属的孢子明显可分为3种类型：A型孢子具网状周壁,B型孢子具鸡冠状-波状周壁,C型孢子具平滑的波状周壁。孢子周壁特征、叶脉式样和叶片顶部的形态是实蕨属中最有价值的分类学性状。根据标本检查,结合野外调查和孢子形态观察,对中国产实蕨属的分类进行了修订,确定中国有实蕨属植物20种和3杂交种,其中包括2个新组合B. fengiana (Ching) S. Y. Dong和B. medogensis (Ching & S. K. Wu) S. Y. Dong,以及2个中国新分布B. costata Ching ex C. Chr.和B. hookeriana K. Iwats.。将B. latipinna Ching、B. media Ching & Chu H. Wang、B. yunnanensis Ching、Egenolfia crassifolia Ching、E. crenata Ching & P. S. Chiu、E. fengiana Ching、E. medogensis Ching & S. K. Wu和E. ×yunnanensis Ching & P. S. Chiu等8个名称处理为新异名。文中给出了分种检索表、每个种的生境和分布资料、大多数种的特征集要和孢子扫描电镜照片。 相似文献
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张茂祥 《内蒙古科技与经济》2007,(21):298-300
制造虚假会计信息行为的责任,实际上就是对违法会计行为施以何种制裁的问题,即"否定的法律评价"是国家强制责任人补偿和救济受到伤害的合法利益的手段.制造虚假会计信息行为的法律责任的形式有三种第一种是民事责任,它主要包括公开谴责、通报、批评、罚款、市场禁入、禁业、吊销职业证书等.针对民事赔偿问题,目前无依据可循.第二种是刑事责任,刑事处罚一般也不会超过5年的有期徒刑.第三种行政责任.它包括警告、记过、记大过、降级、开除、罚款等.制造虚假会计信息行为的治理也是一项系统工程.需要加强法律建设,使各种财经法律更具有科学性.需要加大执法力度,需要加强对会计工作的管理及对会计人员的职业道德教育.总之需要社会各有关部门及单位内部齐抓共管,相互协调和监督,只有这样才能为我国的经济发展创造良好的信息环境. 相似文献
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大国之路上的价值迷茫 总被引：1，自引：0，他引：1
徐友渔 《科学对社会的影响》2008,(1):49-52
100多年来.中国怀着大国之梦艰难地挣扎行进.在这之前的很多个世纪.中国是世界上第一号大国.我们祖先的生产水平、经济水平、技术水平、文化水平都是世界第一,中华文明的光辉照耀周边地区.引起远方人的羡慕和崇拜,中华帝国一度如日中天.使得四海臣服、八方来朝. 相似文献
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实现班级管理最优化是班主任们追求的目标.笔者认为需要做好以下四点1、提高职业修养,完善自身形象,树立班主任高威信.2、把班级交给学生,实现班级自治管理.3、制订并执行好班级管理制度.4、树立系统管理意识,全面调控班级. 相似文献
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自然界中的气候、土壤、水分、植物、动物等之间是相互联系、相互制约的.大农业包括植物和动物生产.动植物依靠着一定的气候、土壤、水分而生活,反过来,气、土、水也受着生物特别是植物的影响.动物吃植物或草食动物,没有植物就没有动物.动物直接或间接地又影响着植物的生长.所以它们之间的相互生态关系是错综复杂的.自然生态区划的目的就是根据 相似文献
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读写结合,这是语文教学的一大规律.读可丰富词汇、积累语言,为写奠定基础;反之,写对读又有促进作用,能提高读的自觉性、积极性,能提高读的质量.为此,每学期,我在教学就设计了这样的作业,让学生进行实践练习:1、摘录并背诵课文中的好词佳句.2、摘录课外阅读中自己喜欢的词、句、断,甚至篇.3、指导学生出黑板报、手抄报,要求主题突出,内容丰富. 相似文献
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《中国科学院院刊》1990,(2):165-171
乐森(王寻)(1899—1989),地质学和古生物学家.地学部委员.北京大学地质系主任、教授.贵州贵阳人.1924年北京大学地质学系毕业,1936年获德国马尔堡大学哲学博士学位.解放前后历任贵州矿产测勘团主任,西南地质调查所副所长,西南军政委员会文化教育委员,重庆大学地质系教授兼教研室主任、系主任,北京大学地质地理系主任,全国地层委员会委员,中国地质学会副理事长,第五届和第六届全国政协委员.抗战期间对贵州省的煤、铁、汞、铜、锰.金等矿产有很多发现.解放前后在广东、广西、贵州和江西等省从事地质矿产调查,对广西合山的二叠系煤田、西湾的侏罗系煤田、武宣的泥盆 相似文献
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Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies. 相似文献
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Prof. Raymond C.K. Chen a neuropsychologist with the CAS Institute of Psychology has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.…… 《中国科学院院刊(英文版)》2008,22(1):15-15
Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology. 相似文献
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潘开玉 《中国科学院研究生院学报》1988,26(6):429-442
Ten new species, three new varieties and a new section of the family Ge-
sneriaceae are described from China in the present paper. They are Tremacron urceolatum
K. Y. Pan from Muli of SW Sichuan, T. obliquifolium K. Y. Pan from Miyi and Yanyuan
of SW Sichuan, T. aurantiacum K. Y. Pan from Mabian and Pinshan of S Sichuan, lsometrum
Sect. Chorianthera W. T. Wang et K. Y. Pan (with I. eximium Chun as the section type),
Isometrum eximium Chun ex K. Y. Pan from Jiulong, Muli and Jinyang of SW Sichuan;
Ancylostemon mairei (Levl.) Craib var. emeiensis K. Y. Pan from Mt. Emei of Sichuan, A.
aureus (Franch.) Burtt var. angustifolius K. Y. Pan from Zhenkang of SW Yunnan, A. ga-
mosepalus K. Y. Pan from Hanyuan, Yanyuan and Yuexi of SW Sichuan, A. rhombifolius K.
Y. Pan from Meigu of SW Sichuan, A. ronganensis K. Y. Pan from Rong an of Guangxi;
Corallodiscus flabellatus) (Craib) Burtt var. puberulus K.Y. Pan from Zhongdian and Deqin
of NW Yunnan, Nanchuan of S Sichuan and Zayü of Xizang (Tibet), Beccarinda minima
K. Y. Pan from Jinxiu and Xiangzhou of Guangxi, Boeica stolonifera K. Y. Pan from Fang-
cheng, Shiwandashan, Pingnan and Dongxing of S Guangxi, B. multinervia K. Y. Pan from
Yingjiang of W Yunnan, and Paraboea barbatipes K. Y. Pan from Napo of W Guangxi and
Xichou of SE Yunnan. 相似文献
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潘开玉 《中国科学院研究生院学报》1988,26(6):450-457
Ten new species, three new varieties and a new section of the family Ge-
sneriaceae are described from China in the present paper. They are Tremacron urceolatum
K. Y. Pan from Muli of SW Sichuan, T. obliquifolium K. Y. Pan from Miyi and Yanyuan
of SW Sichuan, T. aurantiacum K. Y. Pan from Mabian and Pinshan of S Sichuan, lsometrum
Sect. Chorianthera W. T. Wang et K. Y. Pan (with I. eximium Chun as the section type),
Isometrum eximium Chun ex K. Y. Pan from Jiulong, Muli and Jinyang of SW Sichuan;
Ancylostemon mairei (Levl.) Craib var. emeiensis K. Y. Pan from Mt. Emei of Sichuan, A.
aureus (Franch.) Burtt var. angustifolius K. Y. Pan from Zhenkang of SW Yunnan, A. ga-
mosepalus K. Y. Pan from Hanyuan, Yanyuan and Yuexi of SW Sichuan, A. rhombifolius K.
Y. Pan from Meigu of SW Sichuan, A. ronganensis K. Y. Pan from Rong an of Guangxi;
Corallodiscus flabellatus) (Craib) Burtt var. puberulus K.Y. Pan from Zhongdian and Deqin
of NW Yunnan, Nanchuan of S Sichuan and Zayü of Xizang (Tibet), Beccarinda minima
K. Y. Pan from Jinxiu and Xiangzhou of Guangxi, Boeica stolonifera K. Y. Pan from Fang-
cheng, Shiwandashan, Pingnan and Dongxing of S Guangxi, B. multinervia K. Y. Pan from
Yingjiang of W Yunnan, and Paraboea barbatipes K. Y. Pan from Napo of W Guangxi and
Xichou of SE Yunnan. 相似文献
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Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors. 相似文献
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李秉滔 《中国科学院研究生院学报》1988,26(1):58-65
The present paper is part of taxonomic study on Chinese Phyllanthoideae. Inclu-
ded in it are two new varieties, Leptopus esquirolii var. villosus and Drypetes hainanensis var.
longistipitata, one new combination, Glochidion triandrum var. siamense, and seven new re-
cords in China: Drypetes salicifolia, D. hoaensis. Actephila subsessilis, Glochidion khasicum,
G. nubigennum, Bridelia spiosa and B. poilanei. In addition, seventeen taxon names are new-
ly reduced: Liodendron formosanum = Drypetes formosana, Liodendron matsumurae = Dry-
petes matsumurae, D. longipes = D. indica, Antidesma paxii = A. acidum, A. hiiranense, A.
filipes and A. pentandrum var. hiiranense = A. japonicum, A. calvescens = A. montanum,
A. microphyllum = A. venosum, Breynia stipitata var. formosana and B. jormosana = B.
vitis-idaea, Glochidion zeylanicum var. tomentosum = G. hirsutum, G. rubidulum = G. thom-
sonii, G. acuminatum = G. triandrum, G. fagifolium and Phyllanthus fagifolius = Gloc-
hidion sphaerogynum, Bridelia penangiena = B. insulana, B. henryana = B. tomentosa. All
the types are kept in SCBl and PE. 相似文献
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Prof. SUN Changpu from the CAS Institute of Theoretical Physics coworkers from University of Basel in Switzerland have worked out a way - at least in theory - to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams is similar to the famous Stern-Gerlach effect whereby a beam of atoms passing through a magnetic field is split in two according to the atoms' spin states 《中国科学院院刊(英文版)》2008,22(1):23-23
Prof. SUN Changpu from the CAS Institute of Theoretical Physics and coworkers from University of Basel in Switzerland have worked out a way --at least in theory --to split a beam of molecules according to their chirality. The technique involves passing the molecules through three different laser beams and is similar to the famous Stern-Gerlach effect, whereby a beam of atoms passing through a magnetic field is split in two according to the atoms＇ spin states （Phys. Rev. Lett. 99 130403）. 相似文献
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Since the early 1990s, Brazilian IT policy has changed substantially from greenhouse protectionism in selected segments of the market to a more liberal regime. This article analyses the impact of liberalization on IT equipment production, diffusion, employment, and foreign trade. There were both benefits and setbacks, depending on the aspect analyzed. Users benefited from greater access to imported equipment, which could eventually contribute to productivity growth in the overall economy.On the negative side, there was a loss of local linkages with internal sources of components, technology, and employment. The article concludes that the future of the Brazilian IT industry does not seem to be in commodity hardware production. Rather, it lies in design- and engineering-intensive applications. Such "production close to use" can spur domestic use as well as create business opportunities for domestically owned companies in markets not dominated by foreign multinationals. 相似文献
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Milton Mueller 《The Information Society》2001,17(3):151-163
Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP. 相似文献
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刘守炉 《中国科学院研究生院学报》1990,28(2):145-152
Five new taxa of the family Umbelliferae are described from China
They are Pimpinella filipedicellata S. L. Liou, Acronema yadongense S. L. Liou,
Sinocarum bijiangense S. L. Liou, Hydrocotyle salwinica var. obtusiloba S. L.
Liou, Cryptotaenia japonica f. pinnatisecta S. L. Liou. 相似文献