反应作用

Based on the sliding response theory of the free-standing equipment, the differential equation of motion of the free-standing equipment under seismic excitations is presented. The equation is solved by Runge-Kutta algorithm, therefore the absolute acceleration, relative velocity and relative displacement of the equipment can be obtained. The sequential coulomb friction model is applied to the analysis.

以前人研究建立的浮放设备滑移反应分析理论为基础，给出了浮放设备在水平和竖向地震输入下滑移反应运动微分方程，选取连续型的库仑摩擦力模型，采用Runge-Kutta法求解浮放设备地震滑移反应运动微分方程，可以得到浮放设备在地震作用下的绝对加速度、相对速度和相对位移反应时程。

First,the basic formulas solving the artificial earthquake wave compatible with object response spectra are established;the integration equations are translated into the algebraic equations by interpolation function.

首先，从单质点系在地震作用下的反应出发，直接推导了求解与目标反应谱拟合的人造地震动基本公式；随后，利用插值函数将积分方程变换为代数方程组，进而从反应谱的变分求得人造地震动的时域变分。

These results indicate that the potent antianaphylaxis effect of myricetin may be associated with the inhibition of typeⅠand type Ⅳ allergic reaction .

杨梅素具有抗过敏作用，机制可能与抑制Ⅰ、Ⅳ型变态反应有关。关键词杨梅素；抗过敏；被动皮肤过敏反应；瘙痒反应；迟发型超敏反应

The experimental results indicate that the autoxidation of phosphine has two types of reaction operating at the same time: a free radical chain reaction and the direct reaction between phosphine and oxygen.

实验结果表明，膦化物在燃油介质中的氧化反应有两种反应类型同时进行，即：自由基链反应及膦化物与氧气的直接作用。

The effects of reaction factors of oxidation, grafting copolymerization and chelation on the corrosion and scale inhibition performance of modified product were studied.

实验研究了影响氧化反应、丙烯酸接枝共聚反应和螯合反应的各因素对木素磺酸钠改性产物缓蚀阻垢性能的作用规律。

They had suppressed the cathodic process of carbon steel electrode. Their inhibition performance was also related with their molecule stereo conformation and electron configuration. Four of bis-(1, 1'-benzotriazoly)-α,β-diamide compounds linked via-CO 〓CO-chain were synthesized and certified by IR and 〓H-NMR. The minimum energy conformations of these compounds were obtained by MM2 forcefield program. The two benzotriazole moiety in BBT1 was more planar than in other compounds. This was beneficial in increasing the inhibition effects of BBT1. In 0.5M H〓SO〓 solution, BBT1 suppressed anodic corrosion reaction. In 3%NaCl solution, BBT1 suppressed both cathodic and anodic corrosion reactions. 1- [ (1'-imidazolly)-methyl] benzotriazole was synthesized by Mannich reaction.

合成了四个通过-CO〓CO-连接的双（1，1'-苯并三唑）-α，ω-二酰胺化合物，采用MM2分子力学程序优化了它们的分子结构，双（1，1'-苯并三唑）-α，ω-二酰胺化合物的缓蚀作用与其分子内两个苯并三唑单元的空间取向有关系，良好的平面性有利于苯并三唑二聚体的吸附和缓蚀作用，苯并三唑二聚体BBT1分子内两个苯并三唑单元近似平行，所以显示出较好的缓蚀效果。0.5M硫酸中BBT1主要抑制铜的阳极溶解的电化学反应；3％NaCl溶液中，BBT1对铜的阳极溶解和氧的阴极还原过程均有抑制作用，相比较而言对阴极过程的抑制作用更大一些。

In immunohistochemistry slices of skeletal muscle injury induced by contusion, the expression conditions of MyoD protein (one molecule symbol during the differentiation of sarcoblast) in satellite cells are followings: it is expressed continuously in gastrocnemius of treated group at 24 hours、2 days and 4 days after injury positive it is expressed at 4th day in fast muscle of untreated group; it is expressed at 2th day after injury in soleus (slow muscle of treated group; it is negative in slow muscle of untreated group.

由此可见，云南白药在骨骼肌损伤后的修复过程中的作用是通过抑制炎性细胞对伤后肌肉组织的破坏作用，缩短炎症反应进程，对骨骼肌卫星细胞的增殖分化有一定的促进作用，并且该作用在快肌纤维上表现较为显著，从而有利于损伤肌组织的修复。

Its hydro-chemical mechanisms include the functions of H(superscript +) and secondary CO2, salt effects, common-ion effects, ion pair effects, and dolomitization and dedolomitization effects.

分析该反应过程的水化学作用包括H的作用、次生CO2、盐效应、同离子效应、离子对的作用、白云石化和去白云石化作用等。

Mannitol challenge also has a tussive effect that is independent of bronchoconstriction, suggesting different physiologic pathways.

甘露醇同时具有诱发咳嗽的作用，该作用不依赖于支气管收缩，表明该作用与其诱导的支气管反应具有不同的生理学作用通路。

The characteristics of the thermostableα-amylase were also discussed. The optimal temperature and pH for the enzyme were determined as 95℃and 10.0 respectively.

通过对酶性质的研究可得知：酶的最适反应温度为95℃，最适酶作用pH10.0，适量浓度Ca2+在60℃~80℃的范围对酶活力有激活作用，在80℃以上对酶活力有抑制作用，过高浓度的Ca2+对酶活力有抑制作用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。