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Er3+-doped (100-x)TeO2-xNb2O5 (x=5,10,15,20 mol%) niobic tellurite glasses were synthesized, and their density, refractive index, glass transition temperature, crystallization temperature, Vickers microhardness, absorption spectra, fluorescence spectra and the lifetimes of Er3+∶4I13/2 level were measured.

熔制了掺铒碲铌玻璃样品100-XTeO2-XNb2O5(X=5，10，15，20 mol%，测试了其密度、折射率、转变温度、析晶温度、维氏机械强度、吸收光谱、荧光光谱、荧光寿命等参量。

An evaluation of Linear, Freundlich and Langmuir equations on both accuratity and stability indicates that the Linear equation is the best. Sorption of p nitrophenol to sediment is dominated by the partition of solutes to sedimental organic matter. The influences of temperature on sorption of p nitrophenol to sediment was also investigated. The sorption parameters of thermodynamics,Δ H =-7 8?kJ·mol -1 , suggest that the sorption behavior is dominated by dispersive force.

研究了对硝基苯酚在不同沉积物上的吸附等温线，比较分析了Linear方程、Freundlich方程和Langmuir方程描述吸附等温线的准确性和稳定性结果表明，Iinear方程更适合描述沉积物吸附对硝基苯酚的等温线对硝基苯酚在沉积物上的吸附主要是溶质在沉积物有机质中的分配，其吸附热为-7 8 kJ·mol-1，主要的吸附作用力为疏水键力。

Eighty percent of the potassium taken up by cotton was from nonexchangeable potassium of the soil.Both the pot and the field experiment showed a same result that the content of soil nonexchangeable potassium will no longer decrease when it reached a certain level,while nonextractable potassium with 1 mol/L HNO3 will continue to decline.

棉花吸收的钾素中有80%来自于土壤非交换性钾，盆栽生物耗竭与连续种植10年棉花的田间土壤，具有相同的结果，土壤交换性钾在下降到一定程度后不再下降，而1mol/LHNO3不能提取的钾一直在下降。

The experiment results showed that the optimum reaction condition were as follow: concentration of H_(2)SO_(4) was 0.5 mol/L, calcinations time were 4 h at the temperature 550℃, the molar ratio of acrylic acid to octadecyl alcohol was ...

丙烯酸十八酯的优化工艺条件为：丙烯酸与十八醇的摩尔比为1.2，固体超强酸及对苯二酚的用量分别为6%、0.8%，反应温度为120℃，反应时间为3 h。在此反应条件下，酯化收率可达97%。

When catalyst (sherwood oile was used to dissolve stannous octoate and get liquor which concentration was 0.00001 mol/ml) was 1ml, temperature was 165℃, time was 5h, the percentage yield of PGLA was 79.5%.

合成共聚物采用的催化剂为用石油醚溶解的浓度为0.00001mol/ml的辛酸亚锡溶液，当催化剂用量为1ml，温度为165℃，时间为5h时，产率达到最大值，为79.5

Based on these techniques, one-dimensional rare earth orthovanadate nanorods doping with Eu~(3+) ions were synthesized by adding 2～5% mol Eu(NO_3)_3 respectively.

在合成一维LaVO_4、CeVO_4和YVO_4纳米棒的最佳工艺参数的基础上，在前驱体中添加2～5％mol的Eu(NO_3)_3水热合成了具有较好一维形貌的掺Eu的LaVO_4、CeVO_4和YVO_4纳米棒。

Methods Osteogenetic culture medium containing different concentrations of atorvastatin 10^(-6, 10^(-7), 10^(-8)mol/L and control were added in the murine bone marrow cell subculture. The proliferation of the stromal cells was observed, and alkaline phosphatase staining and examination were done to check the differentiation ability of bone marrow cells. Alizarin red staining was performed to evaluate the mineralization of the osteoblasts in culture.

分别将10^(-8)、10^(-7)、10^(-6)mol/L的阿托伐他汀和空白药物加入传代培养的小鼠骨髓基质细胞，通过细胞形态学观察、细胞增殖率检测、碱性磷酸酶检测和钙结节染色，比较药物在成骨细胞分化过程中对细胞增殖和分化的影响。

The experimental results have shown that ofloxacin in HCl (0. 1 mol/L)solution has maximum absorptivity at 293nm. Good linear correlation is seen between concentrations of ofloxacin in the range of 18 μg/ml and their absorptlvity. The results of experiment of stability show that light and heat have almost no effect on ofloxacin otic Solution. The validity is two ...

实验结果表明氧氟沙星用盐酸作溶剂在紫外区有最大吸收，最大吸收波长为293nm，在测定范围内（1－8μg／ml）浓度与吸光度呈线性关系；药用辅料对浦耳液中氧氟沙星的含量测定无干扰；稳定性试验表明光、热对氧氟沙星滴耳液（pH＝6－7）的含量影响不大，根据加速试验和室温留样试验可将本品有效期定为二年。

Thepotential energy surface of these reactions were plotted, and the energy barrier of the reaction between THF and secondary oxonium ion was determined to be 182.0.116 kJ/mol.

本文进一步对四氢呋喃阳离子开环聚合反应过程中，氧鎓离子与水反应的机理进行了分析。

As to butylene oxide and secondary oxonium ion the barrier was determined to be 92.672kJ/mol.The reaction between oxonium ion and water in the polymerization of THF was investigated too.

结果表明，与四氢呋喃单体相比，水更容易与氧鎓离子发生反应，因此可以用水作为中止剂，来控制聚合产物的分子量。

You have to walk your own alk in this life.

次生中你必须走自己的路。

To start with, the thesis analyses ***ism in terms of the generic masculine words, word order and semantic derogation of women in greater detail.

论文首先从阳性词泛指，词序，词义的贬降等方面对英语中的性别歧视现象进行了详细的分析。