共查询到20条相似文献,搜索用时 15 毫秒
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L Beach 《Information management (PTN Publishing Corporation)》1984,18(7):19, 22-13, 29
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The Epistemology of J. M. Keynes 总被引:1,自引:0,他引:1
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曾沧江 《中国科学院研究生院学报》1983,21(2):151-152
Diplopanax is a genus described by H. Handel-Mazzetti in 1933 according to a
flowered specimen. It was originally considered as belonging to the family Araliaceae.
But fruit characters of this genus such as very large in size, oblong-ovoid in shape,
and containing only one seed in a locule which has a curved embryo and very hard
when dry etc., differ greatly from all other araliaceous plants, and evidently resemble
those of the cornaceous genus Mastixia Bl. In addition, the fruit is very similar to
the cornaceous fossil genus Tectocarya F. Kirchh., from which it may be distinguished
by the absence of 2 germinate pores in the endocarp. Consequently, the present
author tends to consider that the genus Diplopanax Hand.-Mazz. is best placed in
Cornaceae, not in Araliaceae.
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Derek L. Bosworth 《Research Policy》1980,9(4):378-388
The causes of the transfer of technology between countries is now seen as an important dimension of the diffusion of new products and processes. Despite its obvious importance, there has been little empirical research investigating the international transfer of technology, although the work of Schiffel and Kitti (Research Policy 7 (1978)) provides a useful foundation on which to build. The research reported below tests the hypothesis that the transfer of technology between countries, as measured by the movement of patented invention, is influenced by both supply side and demand side factors. The principal variables are: patenting activity in the country of origin; the size of the recepient economy; international trade in goods and services; and the operations of multinational producing enterprises. These vaiables explain most of the variation across countries in the transfer of U.S. technology abroad. The worldwide distribution of U.S. based multinational enterprises appear to play an important part in explaining U.S. technology tranfer. On the other hand, the remaining international differences in patent law do not seem to significantly affect patent flows between countries. 相似文献
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陈介 《中国科学院研究生院学报》1964,9(1):1-12
The purpose of the present paper is to discuss the systematic position of the genus
Schnabelia originally proposed by H. Handel-Mazzatti in 1921, who considered it as be-
longing to the family Verbenaceae, a point which he further emphasized in 1936. How-
ever, in his paper on the Chinese verbenaceous plants (1932), Prof. Pei Chien thought
the genus should be removed from Verbenaceae into Labiatae and allied it with such
genera as Ajuga and Teucrium on the ground that it also has deeply lobed ovary. Since
then botanists on Chinese plants, such as Prof. Y. Z. Sun, F. C. How, etc. have always
considered Schnabelia Hand.-Mazz. as a genus of Labiatae.
The present writer has recently studied the genus, comparing its morphology of
ovary, calyx lobes, pedicels, pollen grains, etc. with a number of verbenaceous genera,
and comes to the conclusion that the genus should belong to Verbenaceae as H. Handel-
Mazzatti first proposed and that it is closely allied to the genus Caryopteris, especially
C. nepetaefolia (Benth.) Maxim. Moreover, he considers that the deeply lobed ovary
is not at all a good character even for generic separation, for several genera in Ver-
benaceae, such as Caryopteris, Clerodendron, just like Teucrium and Ajuga of Labiatae,
also have deeply lobed ovaries.
From the ample herbarium material, the present writer discovered for the first time
that the genus Schnabelia has two types of flowers, cleistogamous and chasmogamous.
The original founder of the genus did not know this peculiar floral character, as not
mention of it was made in the generic diagnosis. Chienodoxa Sun (1951) proves to be
the present genus, which is based upon the cleistogamous type of flowers of an allied or
perhaps the same species.
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评布鲁克斯的《情报科学的发展》 总被引:1,自引:0,他引:1
本文对世界知名的情报科学专家英国的B.C.布鲁克斯的专稿——《情报科学的发展》,从四个方面进行了学术评论:(1)努力向“科学”高度挺进;(2)对文献计量学独特的认识与理解;(3)适当地评价电子计算机在情报科学发展中的作用;(4)重视科学计量学。 相似文献
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H.A. Gould 《Journal of The Franklin Institute》1928,206(5):647-673
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发现卧龙乌头Aconitum wolongense W.T. Wang的模式实际上包含两种植物,即毛果甘青乌头A.
tanguticum (Maxim.)Stapf.var.trichocarpum Hand.-Mazz.和展毛大渡乌头A.franchetii Fin.et Gagnep.var.villosum W.T. Wang,故将该种予以归并。 相似文献
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