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[期刊论文] 作者:刘平,颜承农, 来源:南都学坛 年份:1989
Lewis—Randall规则是化学热力学中一个重要规则,不少物理化学教科书都提到它,文献[1]认为该规则适用于实际气体的理想溶液,即其混合性质满足理想气体混合性质的气态溶液,但...
[期刊论文] 作者:陆建芳, 来源:数学研究 年份:2001
讨论了Hansen-Patrick迭代的局部特征关系式,引入函数T(t),利用逐步归纳技巧,证明了在α为一定条件下Hansen-Patrick迭代过程对方程f(z)=0零点的局部收敛性....
[学位论文] 作者:彭国文, 来源:大连理工大学 年份:2002
Brane模型是近年来的研究热点.该文在回顾Brane模型的基础上,重点讨论了Randall-Sundrum(RS)双膜模型的不稳定性和紧致额外维的量子特性.我们从五维测地线方程出发,研究了RS...
[期刊论文] 作者:陈上伟, 来源:重庆建筑工程学院学报 年份:1983
本文采用单位立方体固体材料中包含一个摆线旋转体形孔隙的强度组合模型来代替T.C.Hansen的单位立方体中包含一个圆球孔隙的强度模型,导得多孔固体材料的强度理论公式为R=R_0...
[期刊论文] 作者:, 来源:China's Foreign Trade 年份:1997
China’s petrochemical enterprises are one of the key industrial sectors of China’s national economy....Among China’s top 50 state-owned enterprises, there are...
[期刊论文] 作者:梁克维,, 来源:应用数学学报 年份:2000
1977年Hansen和Patrick提出了一族求复函数f:C→C零点的带参数λ的迭代方法[1]:xn+1=xn-(λ+1)f(xn)/λf1(xn)±(√f1(xn)2-(λ+1)f(xn)fn(xn...
[期刊论文] 作者:毛汉礼,任允武,万国铭, 来源:海洋与湖沼 年份:1964
自1916年Helland-Hansen首次将“水团”一词导入海洋学以后,几十年来,水团的分析研究,一直是海洋学上的重要问题之一;而Helland-Hansen所创立的T-S图解法,迄今亦仍被认为是...
[期刊论文] 作者:王铁成,, 来源:西安矿业学院学报 年份:1991
采用与拉式变换解答相容的求特解的方式对形象表达混凝土流变持征的Burgers模型和Hansen模型的本构关系进行了数学解析,...
[期刊论文] 作者:, 来源:中华医学杂志英文版 年份:1930
[期刊论文] 作者:, 来源:China's Tibet 年份:1994
Tibet' History of TobaccoTibet'sHistoryofTobacco¥byFangJianchangDomesticandforeignrecordsshowthatTibethasalonghistoryofShred...
[期刊论文] 作者:, 来源:China's Foreign Trade 年份:1996
To assist you in opening up China’smarket,China’s Foreign Tradeprovides services of China’s marketsurvey.... 1.Supplying written reports onChina’s markets 1)Ch...
[期刊论文] 作者:, 来源:China's Foreign Trade 年份:1995
China’s refrigerator industry developed at a rapid pace in the 1980s when the purchase of household electrical...
[期刊论文] 作者:, 来源:China's Foreign Trade 年份:1995
As one of the world’s major watch producers, China’s timepiece production ranks fourth after Japan, Hongkong...
[期刊论文] 作者:, 来源:China's Foreign Trade 年份:1994
China’s insurance system was introduced from abroad in the 19th century....Before the establishment of the People’s Republic of China, only a few metropolises h...
[期刊论文] 作者:, 来源:China's Foreign Trade 年份:1994
Beijing Municipality’s foreign trade has developed rapidly since 1979....Beijing’s exports in 1978 was only US$285 million, but they reached US$1.69 billion in...
[期刊论文] 作者:, 来源:China's Foreign Trade 年份:1997
Since the reform and opening policy was introduced, China’s food industry has been developing rapidly...In the 1980s the total output value increased 10% each y...
[期刊论文] 作者:, 来源:China's Foreign Trade 年份:1996
China’s opening,reform and economicdevelopment,as well as the worldinformation technology revolution,...hasenhanced China’s information consultancyservice.Before...
[期刊论文] 作者:, 来源:China's Foreign Trade 年份:1997
In the 1980s, China’s auto market saw three dramatic fluctuations....Since the beginning of the 1990s, the market, as a whole, has become calm and stable without...
[期刊论文] 作者:, 来源:China's Foreign Trade 年份:1995
The Advertising Law of the People’s Republic of China, adopted at the Tenth Session of the Standing Committee...of the Eighth Chinese People’s Congress, came in...
[期刊论文] 作者:, 来源:China's Foreign Trade 年份:1996
China’s export of sewing machinesstarted in the 1950s.At that time theButterfly brand household sewingmachine...
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