浓度

Measuring the coefficient of dynamic viscosity of 0-60g/l salt water under 10-30℃ by capillary tube viscosimeter, and performing the mathematical regression of coefficient of dynamic viscosity about temperature and concentration in order to realize the influence of temperature and concentration on dynamic viscosity of salt water.

2为了解温度和浓度对咸水粘滞系数的影响，使用品氏毛细管粘度计测定10—30℃下，浓度在0—60g/l之间的咸水的粘滞系数，并对咸水粘滞系数进行了浓度和温度的数学回归

Another important result is that, which can be easily drown from the figure of probabilities of the states vs pump power with different x, or the common logarithm figure of the populate probabilities vs x , the increasing of the concentration of Er ions increase both energy transfer which populate the state and the cross relaxation process which depopulate the state, but the total result is that ion number of high lying states increase with concentration.

从不同掺杂浓度下各态布居几率或粒子数与光强的变化关系图可以看出，虽然掺杂离子浓度的增大同时增强了产生上转换荧光能态布居的能量迁移上转换过程和消耗该能态布居的交叉驰豫过程，但两者竞争的结果是较高的掺杂浓度对产生高能激发态的粒子数有利。

0Mg/L 6-benzylaminopurine was the optimal concentration of shoots quantity inducing which frequency of inducing shoots and number of shoots per explant were 100% and 11.1 respectively. 0.5mg/L 6-benzylaminopurine was the optimal concentration of shoots length inducing which average length of shoots was 12.0mm. Explant size had significantly effects on direct shoots quantity and length induction. When complete cotyledon used as explant, frequency of inducing shoots, number of shoots per explant and average length of shoots could approach to 100%, 6.7 and 17.1mm respectively. 2.0mg/L silver nitrate could significantly increase shoot quantity induction, both frequency of inducing shoots and number of shoots per explant could be as high as 97.2% and 4.2 respectively. But silver nitrate also could restrain shoots elongation.

结果表明：不同黄瓜品种直接不定芽数量诱导存在显著差异，但长度诱导无显著差异；6-苄氨基嘌呤对直接不定芽数量和长度的诱导作用显著，其中4.0mg/L为数量诱导适宜浓度，其出芽率和每外植体出芽数达到最高，分别为100.0%和11.1，0.5mg/L为长度诱导适宜浓度，其平均芽长12.0mm；外植体的大小对直接不定芽数量和长度均具显著影响，随着子叶的增大诱导直接不定芽的数量和长度增加，其中单片完整子叶为最适宜大小，其出芽率、每外植体出芽数和平均芽长分别达到100%、6.7和17.1mm；硝酸银也对直接不定芽数量诱导影响显著，其中2.0mg/L为适宜浓度，出芽率和每外植体出芽数分别达到97.2%和4.2，但对芽长有抑制作用。

The effects of concentration of monomer, initiatorand dispersant, reaction temperature and time on copolymerization are studied.

考察了单体浓度、引发剂浓度、分散剂浓度、反应温度和时间等对共聚反应的影响。

Comparing the electrolyte concentration shifting along the time with the membrane surface potential shifting along the electrolyte concentration, the crimple phenomenon is related to the shift rate of electrolyte concentration and to the shift range of the membrane surface potential.

通过模型计算环境中平均盐浓度随时间的变化及实验测量膜表面电位随盐浓度的改变，我们发现皱褶的出现及形变程度与盐浓度变化的急剧程度有关，也与膜表面电势变化幅度有关。

Glyphosate brought the biggest vice-effects, clethodim took the second and fenoxaprop-p-ethyake minimum:(1)As to the pure growth, MDA accumulation, the relative permeability of plasma membrane and chlorophyll content, glyphosate had evident influences on them in the daily dosage, 1/2 and 1/4 of the daily dosage . The walnut seedling dried and died twenty days later.(2)The influences of clethodim in different concentration such as double daily dosage, daily dosage and 1/2 of daily dosage on the above four indexes demonstrated differently, the more concentration was, the more severe the influence. was. With the concentration reducing, the influence weakened gradually.(3) Double daily dosage, daily dosage and 1/2 daily dosage of fenoxaprop-p-ethy exerted a slight vice-influence to the MDA accumulation, the relative permeability of plasma membrane and chlorophyll content.

1用草甘膦常用量、1/2倍常用量、1/4倍常用量处理之后，对核桃苗新梢生长量、叶片中丙二醛含量、膜相对透性以及叶片中叶绿素含量的影响最大，几乎所有样枝的新梢在药后20天后都发生干枯及死亡现象；(2)用收乐通2倍常用量、常用量、1/2倍常用量处理之后，对核桃苗的新梢生长量、叶片中丙二醛含量、膜相对透性及叶片中叶绿素含量的影响，呈现出浓度不同影响亦不同的现象，浓度越大，影响越明显，随着浓度的降低，影响也逐渐减弱；(3)用威霸2倍常用量、常用量、1/2倍常用量处理之后，对核桃苗新梢生长量、叶片中丙二醛含量、膜相对透性及叶片中叶绿素含量的影响最小；(4)三种除草剂对核桃苗的影响随着药后时间的延长，其影响在逐渐减小。

Through determination experiment of AP solutions concentration by using densimeter and thermometer, relation table of temperature-density-concentration of AP solutions was obtained.

通过用密度计和温度计测定高氯酸铵溶液浓度的试验，并由此得到AP溶液的温度-密度-浓度三者之间的关系表，通过该表用密度计和温度计可快速测定AP质量浓度，偏差为±4g/L，符合工艺要求。

The results revealed that the conversion was 92.4% when aniline concentration was 1 mol/L, feeding temperature was 25℃ and residence time was 11 s. With feeding temperature being the main factor, the effect of residence time decreases successively. The diazotization anomalies could be caused at aniline concentration above 1.5 mol/L. The proper feeding temperature which can lead to the highest conversion was 20~30℃.

试验结果表明，在苯胺浓度为1 mol/L，进料温度为25℃，停留时间为11 s时反应转化率达92.4%；苯胺浓度、进料温度、停留时间对反应影响程度各不相同，其中进料温度的影响最大，停留时间次之，苯胺浓度高于1.5mol/L后，对反应影响加剧，导致反应异常；从进料温度对反应的影响试验分析可得，反应转化率最高的进料温度在20~30℃之间。

Then select the very surfactants\' concentration to treat SBP for one hour, scan on the circular dichromatism spectrum and fluorescent spectrum; ultraviolet-visible spectrum scans SBP\'s variations within 2h after surfactants\' adding to immediately.

实验前加适量相应缓冲液溶解使SBP浓度为250mg/ml.30℃下，设置三种表面活性剂的浓度梯度，使得每种表活剂的加入使得SBP酶活力变化，并在某一特定浓度和特定时间残留酶活力稳定。

First the traditional non-optical detection technology for gas concentrations is briefly introduced, such as ultra-sound technology, gas sensing, catalytic thermal, gas chromatography, interferometry applications, and then the spectral analysis based on the concentration of gas detection is discussed. The latest technological developments on the differential absorption spectroscopy, Fourier transform infrared spectroscopy, tunable laser diode laser absorption spectroscopy, laser radar and differential absorption Raman scattering laser radar, laser-induced fluorescence spectroscopy, laser Photoacoustic Spectroscopy are reviewed in detail.

首先对传统的非光学气体浓度检测技术作出了简单的介绍，包括超声波技术、气敏法、热催化法、气相色谱法、干涉法应用技术，被动检气管法，然后重点阐述了基于光谱学分析气体浓度检测技术的最新发展动态，其中分别对差分吸收光谱技术、傅里叶变换红外光谱技术、可调谐激光二极管激光吸收光谱技术、差分吸收激光雷达和拉曼散射激光雷达、激光诱导荧光光谱技术、激光光声光谱技术进行了详细介绍，最后提出了现代气体浓度检测技术的发展方向。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。