预作用

Objective To study the effects and mechanism of Naotaifang extract preconditioning on the cerebral ischemia-reperfusion injury in gerbil.

目的：研究脑泰方提取物预处理减轻沙土鼠脑缺血再灌注损伤的作用及作用机理。

2When Hypotonicity(220 mOsm, 260 mOsm, 300 mOsm)was preapplied extracellularly, it reduced ATP-activated currents significantly. This inhibitory effect was reversible, osmosis-dependent, and voltage-independent.

2预加低渗溶液(220 mOsm，260 mOsm，300 mOsm)，对IATP产生抑制作用，该抑制作用呈可逆性，渗透压依赖性和非电压依赖性。

Effects of H_2O_2 on the tension of isolated aortic rings of rat As above methods,Our results indicated that (1) aortic rings with endothelium precontracted by NE to 10000μmol/L H_2O_2 induced a relaxation; aortic rings with endothelium to 100μmol/L H_2O_2 induced a significant contraction;H_2O_2 induced the same effects in aortic rings without endothelium, there is significant difference in presence and absence of endothelium.

双氧水对大鼠离体血管环张力的影响方法同2，结果：①NE预收缩后，加入10000μmol／L H_2O_2，内皮完整血管环表现为舒张作用；加入100μmol／L H_2O_2后血管环表现为收缩作用；H_2O_2对去内皮的血管环同样具有上述作用，与内皮完整组相比差异显著；②10000μmol／L H_2O_2可使得内皮完整及去内皮血管环中NO含量升高；100μmol／L H_2O_2可使得NO含量降低。

When secondary building units characteristic of zeolite Beta detected by FT-IR appeared in the reaction mixture in the absence of crystals of zeolite Beta, the pre-treatment was terminated. The aluminosilicate gel with seconding building units characteristic of zeolite Beta was led to ordered-channel hexagonal mesoporous molecular sieve by the interaction between liquid-crystal micelles formed by the self-assembly of surfactants and pre-treated alumiosilicate gel. Therefore, the mesopore wall of SBU mesoporous materials showed the structural character of zeolite Beta.

当反应混合物出现用FT-IR可以检测到的Beta沸石次级结构单元且又没有生成Beta沸石晶体时，即刻终止预处理过程；然后利用表面活性剂超分子自组装形成的液晶胶团与经过预处理的无机物种通过界面作用把含有Beta沸石次级结构单元的无机物种导向为有规整孔道结构的六角中孔分子筛，这种SBU中孔材料的孔壁因而具有Beta沸石的结构特征。

This paper makes a three-dimensions finite element analysis for connecting the rod of Beijing Jeep 212 Engine by using ANSYS structural software and obtains the circularity of big-headed cylinder under the acting of pre-screwing force and the stress contours and deformation contours under the acting of pre-screwing force and the condition of working.

应用ANSYS结构分析软件，对北京吉普212发动机连杆进行了三维有限元分析。得出了螺栓预紧力对连杆大头圆度的影响；预紧力与工作载荷共同作用下连杆的应力和变形云图，为进一步改进设计提供了理论依据

Small deformation in the rubber parts within the preload can be approximately negligible, but the large amount of local deformation, rubber non-linear characteristic curve of a stronger, more obvious the role of preload.

在橡胶件的小变形范围内，预紧力可以近似忽略不计，但变形量大的地方，橡胶件的特性曲线非线性较强，预紧力的作用较为明显。

Second, considering the influence of well resistance, smear effect and structure breakage of thick soft clay, the equivalent calculation method is proposed. That is, the partially penetrating sand drain ground is viewed as the double-layered ground, and its consolidation is analyzed with 1-D consolidation theory, through the transformation from 3-D consolidation to 1-D consolidation in the region of sand drain. This can overcome the disadvantage that the excess pore water is discontinuous between the region of sand drain and under-lying soft layer. To the double-layered ground, based on the consolidation mechanism under surcharge, the excess pore water pressure calculation formula is deduced under the condition of multilevel equably loading or unloading, which perfects the consolidation theory.

然后，在充分考虑竖井区井阻、涂抹作用以及土体结构损伤破坏对固结影响的基础上，将未打穿竖井地基合理地转化为双层地基，按一维固结理论计算，克服了传统固结计算方法在竖井处理区与下卧层交界面处存在孔压间断的缺点；在此基础上，从超载预压法的基本原理出发，分析了双层地基超载预压固结、沉降机理，推导了多级等速加、卸载情况下双层地基的固结计算公式，进一步完善了双层地基固结理论。

RESULTS: Both HPC and treatment with ruthenium red (5 μmol/L) during the first 10 min reoxygenation improved recovery of LVDP,±dp/dtmax and decreased LVEDP, which was associated with reduced infarct size and lactate dyhydrogenase release.

用TTC染色法测心肌梗死面积。结果：低氧预处理和低氧后复氧期的前10 min用钌红（5 μmol/L）处理均可促进LVDP、±dp/dtmax和LVEDP的恢复，减小心肌梗死面积，减少LDH释放。复氧期的前10 min用精胺(20 μmol/L)处理可减弱低氧预处理的心脏作用。

We employed an anaesthetised open chest rabbit model of ischemic preconditioning to preliminarily observe the protective electrophysiologic basis, and approached the possible roles on reducing the appearance of lifethreatening arrhythmias.

我们用在体兔心脏缺血预适应模型，初步观察了预适应心脏保护的电生理基础，探讨其在减少恶性心律失常中的可能作用。

AIM: To investigate the effect of noradrenaline on transmembrane potential during delayed preconditioning phase.

目的： 研究微量去甲肾上腺素预处理晚期心肌细胞线粒体跨膜电位的变化，为探讨预适应晚期作用机制提供依据。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。