常数

As the carbon/ epoxy composites for the example, when fiber volume content and braid angle is fixedness, the influence of the 3-dimensional braided composites effective modulus that caused by thickness is more than by width, when width larger certain value and thickness larger certain value the modulus that composite is steady.

宽度变化对于E1 1影响较大，其他模量影响很小，当宽度大于一定值趋于稳定；而厚度的变化，对于复合材料不同弹性常数影响都很大，当厚度达到一定以后各个弹性常数的变化趋于稳定。

They were reversible un-competitive inhibitors, and their inhibition constants of free enzymeK(subscript I were 254.00 and 136.78 mmolL^(-1), respectively. Urea was reversible mixed-type inhibitor, and its inhibition constants of free enzymeK(subscript I and enzyme-substrate complexK(subscript IS were determined to be 379.02 and 1182.00 mmolL^(-1), respectively.

Na2SO3和H2O2对酶的抑制均表现为可逆反竞争性类型，它们对游离酶的抑制常数K(下标 I分别为254.00和136.78 mmolL^(-1)；尿素对酶的抑制表现为可逆的混合型抑制，它对游离酶的K和对酶－底物复合物的抑制常数K(下标 IS分别为379.02和1182.00 mmolL^(-1)。

The representation, estimation and computation of pointwise geometric constant are quantitative of pointwise geometric property and locally representation of geometric constant of space.

点态几何常数的表示、估计、计算是点态几何性质的量化，是空间几何常数的局部化。

Based on this model, the age of the universe, and the Hubble constant value can be accurately determined by the Velocity of light,and the mode indicates the reasons of Hubble constant becoming smaller with farther observation of celestial body and changing trends of Gravitational constant.

依据此模型，可以通过光速值准确测定宇宙的年龄、哈勃常数值，揭示哈勃常数随所测天体距离越远越小的原因和引力常数变化的趋势。

Simultaneously, how the gum acacia affects the hydrolysis rate constants of fatty acid esters in 38.6% ethanol solution, and the combination behavior between gum acacia and fatty acid esters have been found. And the way to determine the combination costants between them quantitatively is also found. In addition, the validated quantitative mathematic expression between hydrolysis rate constants of ester and the concentration of gum acacia: k=k'/(1+AM) is verified.

同时研究了38%乙醇溶液中阿拉伯胶与脂肪酸酯之间的缔合行为，并建立了定量确定缔合常数的方法，推导并验证了定量表达酯水解速率常数k与GA浓度关系的数学表达式：k'=k/(1+AM)，得出了GA对脂肪酸酯水解起禁阻作用的结论。

The axial direction and radial direction spectrum is blue-shift or red-shift. On axial direction, the blue-shift or red-shift increases with the relative propagation distance, truncation parameter, refractive index constant increases and temporal coherence length decreases, and the spectral-shift gurgitation becom gragually steady. On radial direction, spectral switches appear, and the truncation parameter, spatial coherence parameter, temporal coherence length and refractive index constant also influence critical position and transition height et al.

光谱沿轴向、径向均出现蓝移或红移，随着相对传输距离、光阑截断参数、空间相干参数及折射率结构常数的增大，脉冲时间相干长度的减小，轴向光谱蓝移量或红移量逐渐增大，并且由明显地起伏逐渐趋于稳定，沿径向出现了光谱开关，光阑截断参数、脉冲时间相干长度、空间相干参数和折射率结构常数对光谱开关的数目、光谱开关的临界位置和光谱跃迁量等也产生影响。

In the GUV, hypericin select adsorption on cholesterol. We further find out that the binding constant of cholesterol is three times higher than that of phospholipid.

而用GUV方法也证实金丝桃素喜欢吸附於胆固醇上，更进一步从结合常数的测量发现胆固醇的结合常数为磷脂质的三倍。

The theory and application is explained in this paper. Software XMGREDIT5 matching ELCIRC is used to generate unstructured grid, and is considered fit for ocean but rivers. Tidal current is simulated and validated well, and sensitivity of current structure to bathymetry is visible. Affection of wind is qualitatively analyzed here. At the same time the model is improved on as required, like the tidal open boundary which could choose not only long period harmonic constant but also short period harmonic constant and tidal level, and multi-point results and flow field data could be exported effectively with binary results.

本文介绍了ELCIRC的理论及使用；基于其在Linux平台下的软件XMGREDIT5生成全三角形网格并评价其特性，认为XMGREDIT5较适合大范围海域而不适用于河道；应用ELCIRC模型计算了长江口的潮流场并进行验证，结果与实测资料吻合良好，且能较好地模拟出地形变化对水流结构的影响；文中对于风场的影响作了定性分析，同时根据实际需要对模型作了改进，如将仅支持长期资料调和常数的开边界条件改为可选择的短期调和常数边界和潮位边界，使二进制格式结果文件数据输出可以处理多点数据及流场等等。

When the temperature is 30℃and pH=9, the rate of hydrolysis of C.I.

活性黑5的水解反应速率常数为3.5×10^(-5)min^(-1)；相同温度下，在pH值为10、11、12时该染料的水解反应速率常数分别是pH值为9时的3、27、233倍，因此，C.I。

The relations of inducing skin current of shielding layer, core voltage and core current with the environment field were obtained. The change of shield layer current wave with grounding state of external shield and core voltage with loading resistance was analyzed. According to the dependence of shield layer current oscillating frequency on electromagnetic wave propagation velocity, conception of transporting line of shield layer-ground with equivalent relative dielectric constant was presented. fited equation of equivalent relative dielectric constant with change of cable height was given.

试验得到九芯电缆屏蔽层感应电流、芯线感应电压、芯线感应电流以及环境场之间的关系；分析了皮电流波形随外皮接地状态的变化，芯电压随负载电阻的变化；基于皮电流振荡频率与电磁波传播速度的关系，提出了屏蔽层-大地"传输线"等效相对介电常数概念，给出了等效相对介电常数随电缆高度变化的拟合式；皮电流计算与测量结果在波形、振荡周期、衰减规律等方面有较好的一致性。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。