差

Based on the market microstructure theory, this paper firstly discusses how the different trading mechanisms decide the price and the relationship of the trading mechanism and the volatility of return. Then selecting the stocks synchronously listed in the market of Mainland China and Hong Kong as the sample, we empirically analyze the relationship of the trading mechanism and the volatility of return. After describing the originality variance ratio of the markets, this paper explains the outcome of the empirical and makes a GARCH (1, 1) model for further analyze.

本文以金融市场微观结构理论为基础，首先从理论上探讨了不同的交易机制对股票价格的确定过程，以及交易机制与股票价格波动性的关系问题；接着本文选用同在中国大陆和中国香港地区上市的公司股票每日的开盘和收盘价格为样本，分别以收益率的原始方差比和GARCH(1， 1)模型估计的方差比实证分析了交易机制与股价波动性的关系。

RESULTS The SOD activity had linear correlation with pH in the range of pH 2.2-8.0 when SOD concentration was fixed. The varication of activity after ultrosonication had linear correlcation with fluoresent intensity at 340 nm. With increase of uhtrosonic frequency, the microenviroment of tyrosine and tryptophan inside the SOD molecule was changed, then the balance of hydrophokicity and hydrophilicity inside the molecule was broken, this induced the blue shift of synchronous spectrum band and decrease of SOD activity.

结果 SOD浓度一定、pH2.2~8.0时，活性与其线性相关，超声后活性差值与340 nm荧光强度差值的线性相关；随着超声次数的增加，蛋白质SOD分子内部的酪氨酸、色氨酸所处的微环境被扰动，打破了分子内部的疏水和亲水平衡，使蛋白质的活性降低，在荧光检测中观察到普通荧光谱带蓝移，同步荧光的荧光峰位总体呈现峰位蓝移和强度下降。

The various representations of LPC residual signal are summarized, which can be unified as a Vector Decomposition problem.

在总结了语音LPC模型残差信号的各种表示方法之后，把这些方法都归结为一种统一的表示方法，即残差的矢量展开法。

A common mistake and its harm in CT secondary connection of transformer differential protection were analyzed,the correct connection mode was explaned,and how to use the hexagon vector diagram of checking was introduced.

分析了一种常见的变压器纵差保护电流互感器错误接线及其危害，说明了正确接线方式，并介绍了如何通过作六角图来检查纵差保护二次接线的正误。

Two mathematical models have been deduced in the case of dense-phase and light-phase conveying respectively. Combining the capacitance phase concentration sensor designed and the traditional Venturi flow meter, the powder velocity and instantaneous mass flowrate are obtained by measuring concentration and differential pressure signal.

本文最后提出了一种差压—浓度法测量气/固两相流瞬时质量流量的新方法，分别建立了稀相和浓相输送情况下的粉料速度和流量测量的数学模型，即将所研制的电容式相浓度传感器与传统的文丘里流量计相结合，通过测量浓度信号及差压信号，求得粉料的传送速度及其瞬时质量流量。

The R2val(coefficients of determination for validation) were 0.939 1,0.965 1 and 0.987 5.As RMSEP are 0.41,0.35 and 1.31.Then,these models were all used to predict practical maize samples.Comparing with the true values from chemical analysis,the NIR models could predict veraciously.

结果表明：近红外预测模型的内部交叉验证决定系数(R2cv)分别为：0.9778，0.9666和0.9927；交叉证实标准差分别为：0.38，0.40和1.51；模型外部验证决定系数(Rv2al)分别为0.9391，0.9651和0.9875；外部验证标准差为0.41，0.35和1.31。

The thermogravimetric analysis and differential scanning calorimetry results reveal that the additions of modification ions/compounds have great effects on the vitrifaction temperature of the membranes and their decomposition temperatures.

运用多种无机物及有机物体系对Nafion 膜进行了修饰，采用热重，微分热重，差热，差示扫描量热等热分析手段，及红外技术对其进行了表征，并展望了他们广泛的商业应用前景。

The programme through the transformer transformer, through the rectifier circuit filter circuit which will be AC into DC, and the adoption of the regulation by regulators more stable voltage, input voltage regulator when it can only be fixed when the voltage difference within the scope of regulation of the output voltage, and therefore out of voltage difference in the scope of automatic Diaodang, it is through the two comparator output voltage and the reference voltage comparison, and through the counter counting function control relay controller The input to determine the size of the output voltage at which the scope, and then automatically Diaodang.

该方案是通过变压器变压，再经过整流电路、滤波电路进而将交流电变为直流电，在通过稳压器的稳压得到较稳定的电压，由于稳压器当输入电压固定时只能在它的电压差范围内调节输出电压，、所以要在调出电压差的范围时自动调档，这是通过两个比较器将输出电压和基准电压进行比较，再通过计数器的计数功能控制继电器控制器的输入情况来判断输出电压的大小在哪个范围，然后进行自动调档。

The most recent work on wavefront aberrations and their corrections are reviewed in this article.

本文研究波前像差及其矫正方法，为抑制术后像差的增大提供理论依据。

The effects of pH value, temperature, light, metal ions and additives on the stability of red pigments from waxberry were studied.

研究了pH值、温度、光照、金属离子和添加剂等对杨梅鲜汁中红色素稳定性的影响，结果表明：杨梅果汁中的红色素对酸碱度极其敏感，热稳定性差，耐氧化和还原性极差，防腐剂的消色作用较大。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失