人生准则     

齐云 《科技文萃》2005,(8):101

30年前,美国华盛顿一个商人的妻子,在一个冬天的晚上,不慎把一个皮包丢在了一家医院里.商人焦急万分,亲自连夜去找.因为,皮包内不仅有10万美金,还有一份十分机密的市场信息.  相似文献   

双语实验课教材编写的改革探索     

鲁逸人  刘宪华  姜晓峰  迟杰  齐云 《高校实验室工作研究》2008,(4)

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如何有效地提高学生的语文素养     

齐云 《商情·科学教育家》2010,(15)

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幸运数字     

齐云 《中学生数理化》2008,(7)

报刊、书籍、电视、网络中经常出现“幸运数字”这样的字眼，什么是幸运数字呢？就是有一个神秘的一位数，对某人有特殊的关系，生活、事业、爱情等好事情都会和这个数字相联系。幸运数字的确定方法不止一种，并且结果也可能不一样。有一种比较简单的方法，现以出生于1992年8月14日（阳历）的李浩为例说明。  相似文献   

Effects of Shallow Groundwater Table on Soil Matric Potential and Hydraulic Characteristics     

姜建梅  赵林  齐云  翟喆 《天津大学学报(英文版)》2014,(6):463-468

Groundwater recharge significantly affects soil moisture redistribution through capillary rise. In this study,the soil matric potential at depths of 5, 10, 20 and 30 cm above the groundwater tables of 10, 30 and 60 cm were measured for 5 d. Soil hydraulic properties were analyzed by using the Philips and de Vries model. Results showed that evaporation mainly influenced the matric potential of the shallow layer at the 5 cm depth regardless of the saturation of the layer. Groundwater recharge mainly affected soil moisture at the depth of 20 cm or more. A constant matric potential layer existed between the evaporation front and capillary rise front where moisture content did not change.The isothermal-liquid hydraulic conductivity(KLh) and the thermal-vapor hydraulic conductivity(Kv T) were the dominant hydraulic conductivities in the liquid and vapor phases. At the groundwater table depths of 10, 30 and 60 cm,the mean peak values of KLh were 2.32×10-7, 1.63×10-7 and 0.29×10-7 m/s, respectively, whereas the mean peak values of K-v T were 2.7×107, 2.4×10-7 and 1.8 ×10-7m/s, respectively.  相似文献   

阿里汉 魔鬼、小人物、商人     

齐云 《中国新闻周刊》2003,(22)

兼具“魔鬼”、“小人物”和“商人”于一身的阿里汉,在中国队会有多大作为?人们希望,阿里汉不仅和希丁克“形似”,而且“神似”  相似文献   

有一种爱叫放手     

齐云 《初中生学习》2005,(Z1)

有一种爱叫做放手。如果你只为自己的快乐,而攥紧了你的珍爱,那么我提醒你:与其眼睁睁地看着自己喜欢的东西失去生命,不如就此放手……  相似文献   

“镜头剪辑法”在作文中的巧用     

齐云 《初中生学习指导(初三版)》2011,(7):34-35

根据表达主题的需要,选择几个典型的人物、事件或景物片段组合成文,这就是我们所说的“镜头剪辑”。主题是文章的灵魂,是串联文章内容的思想红线。因此,所选的镜头片断,  相似文献   

Effects of concentration and freeze-thaw on the first hydration shell structure of Zn²⁺ ions     

王文华  赵林  阎波  谭欣  齐云  贺博 《天津大学学报(英文版)》2011,17(5):381-385

To investigate the effects of salt concentration and freeze-thaw （FT） on the first hydration shell of Zn2+ ions in Zn（NO₃）₂ aqueous solutions, extended X-ray absorption fine structure （EXAFS） spectroscopy was used to examine Zn K-edge EXAFS spectra of Zn（NO₃）₂ aqueous solutions with various concentrations before and after FT treatment. The influences of salt concentration and freeze-thaw on the structural parameters of the first hydration shell of Zn2+ ions, including hydration number, Zn-O distance and thermal disorder, were analyzed. The results show that Zn2+ ions have 3.2―6.8 nearest oxygen neighbors with the Zn-O distance being 0.202―0.207 nm. In highly concen-trated solutions, Zn2+ ions are hydrated with four water molecules in a tetrahedral form. The dilution of Zn（NO₃）₂ aqueous solutions increases the number of water molecules in the first hydration shell of Zn2+ ions to six with their octahedral arrangement. Both the hydration number in the first hydration shell of Zn2+ ions and the degree of thermal disorder increase when the FT treatment is operated in Zn（NO₃）₂ aqueous solutions.  相似文献   

矿物纤维用于文化用纸的中试实验     

杨晓娜  赵子亮  齐云洹  马晓东 《漯河职业技术学院学报》2012,11(2):63-64

对矿物纤维用于文化用纸进行中试实验。结果表明,在添加8％的矿物复合纤维后,纸张的灰分平均比原纸提高4％（900℃）,其纸张的表面强度、平滑度均有所增加,而裂断强度、耐折度稍微有所下降,但仍然在质量控制指标之内,可以有效降低纸张生产成本。  相似文献