机理

Then they were subjected to the classical corrosion experiment, such as outsea in-situ plates test and indoor salt-spray acceleration test in order to study the potential, thickness, and weight variation with time of different coating systems in different corrosive environment.

对喷涂锌铝再涂装有机涂层的的复合覆盖层的防腐规律和机理的研究则是少见报导，本论文的工作将初步揭示在该领域金属及有机复合覆盖层在海洋环境中的腐蚀过程及失效机理，为该技术在我国的发展提供理论基础。

The blasting excavation ways are the other factor of affecting overbreak as well as underbreak in the openings. So far, the research about the effect of blasting excavation to overbreak as well as underbreak is not be reported in the domestic. The openings perimeter shape that is be affected by blasting is researched from the angle of rock rupture.

论文旨在从岩体的破坏机理出发，对裂隙岩体开挖后的洞室周边分数维进行研究，提出了裂隙岩体洞室开挖周边的广义分数维模型，并且对不同影响参数与洞室周边分数维之间的关系进行分析，从分形理论的角度建立洞室周边广义分数维与洞室超挖之间的关系，从而建立了以岩体破裂机理为基础的超欠挖与广义分数维之间的关系。

Objective To study the mechanism of gastric bypass operation on treatment of type 2 diabetes mellitus, recognize the etiology and pathogenesy of the disease and frame therapy strategy for type 2 diabetes mellitus.

目的 回顾胃肠转流手术治疗2型糖尿病的临床实践及治疗机理的研究，为深入认识2型糖尿病的发病机理和制定综合治疗策略提供基础。

Hewever the caspase-3 expression was still very high in cortex. Conclusion: In KA model the hippocampus amygdala plays a key role in epilepsy. Therefore it provides a mimic optimal conditions for human temporal lobe epilepsy study. Its an effective method of studying the development, change and pathopoiesis of epilepsy. There is a close relationship between NPY and epilepsy. The regulation of NPY via VPA may be one of the antiepilepsy mechanism of mechanism of VPA. Moreover NGF can enhance the caspase-3 expression. Excito-amino acid can aggravate the apoptosis, which may be one of the reason for intractability of epilepsy.

KA模型因其海马杏仁核在癫痈中起核心作用，故具有模拟人类颗叶癫痈的理想条件，是研究癫痈发展变化、致痈机理的有效工具，NPY与癫病有着密切的联系，VPA调节NPY有可能是其抗癫痈机理之一，而NGF对caspase一3表达有促进作用，兴奋性氨基酸可造成细胞凋亡的增加，而凋亡细胞的增多有可能是癫痈久治不愈的原因之一。

Based on preliminary pharmacodynamical test on animals, the inhibition of gastric acid secretion of FM—DDS is better than its ordinary tablets, and the antiulcerative effect is better as well.

根据体外溶出试验表明，FPRP在服药10小时后脉冲式释药，这时药物应是到达回肠以下部位，为此，进行了药物肠道吸收部位及吸收机理的研究，结果表明：法莫替丁在十二指肠、空肠、回肠、结肠等部位均有吸收，其吸收量顺序：十二指肠＞空肠＞回肠＞结肠，其吸收机理属于被动扩散。

Starting with the crystal optics theory, the phase change, generated by photoelastic effect, is derived.

详细研究了相位调制型波导传感器的传感机理，分析了应力应变效应和温度应变效应引起的相位变化机理。

Objectives In order to investigate how does King's Brain pill work or mechanism of King's Brain pill effective in treating AD clinically, we observed effects of extract of King's Brain on neuronal and vascular lesions induced by Aβ combining with praxiology and neuropathology.

目的 运用现代分子神经病理学和行为学技术，围绕炎症假说、淀粉样蛋白瀑布流假说，以神经元和脑血管为保护目标，着眼于AD的关键病理机制Aβ（β淀粉样蛋白沉积和淀粉样血管病变）及其代谢，开展中药补肾活血化痰复方制剂金思维对损伤的神经元和血管的保护作用机理研究，从而探讨其防治老年性痴呆的机理。

The psammoma body mineralization in meningioma is a common type of mineralizationThe analysis of the mineral composition may provide some support information in finding the reason of happening and developing of the diseaseThis paper focuses on the concentric layered structure mineralization in meningiomas, using mineralogical methods, such as HRSEM, ESEM, EDAX, EPMA, HRTEM, XRD and FTIR to systematically investigate the mineral composition, structure and shape of the minerals in psammoma bodies in meningiomasWe have devised a method for preparing the silicon wafer sheet which was used for the ESEM insitu observations and analysisIn this study, we first got the ESEM and HRTEM images of the initial mineralization phase of meningiomasThese images showed that in the early stage of psammoma body mineralization in meningiomas, many mineralized balls composed of octocaphosphate were precipitated on the collagen fibersThese balls continued to grow and aggregate, and were gradually hydrolyzed to become the dahlliteThe continued development of mineralization resulted in the mineralized collagen fibersThe study revealed that the concentric layered structure of the psammoma bodies in meningiomas is formed by the spiral arrangement of the mineralized collagen fibers on which the mineralized grains precipitated.

砂粒体矿化是脑膜瘤中常见的矿化类型，对其形成机理和矿物成分的分析可能会对肿瘤发生、发展的研究提供辅助信息。该研究选取人脑膜瘤中的砂粒体矿化作为研究对象，采用偏光显微镜、环境扫描电镜及能谱、X射线衍射仪、高分辨透射电镜和电子探针对样品的形貌、结构和成分进行测试分析，并以此为依据探讨脑膜瘤中砂粒体的形成机理。研究结果表明矿化的初期为沉淀在胶原纤维上的矿化小球，成分为磷酸八钙；矿化小球不断生长聚集，并逐步水解为碳羟磷灰石晶体，矿化的不断发展致使胶原纤维也发生矿化。砂粒体的同心层状构造是由螺旋状排列的矿化胶原纤维及沉淀在其上的矿化颗粒组成的集合体，而不是多数研究中所述：砂粒体是以坏死细胞残骸为中心由内至外的同心层沉淀。

Function mechanism of Bt to Helicoverpa armigera and Mythimna separata is studied in this thesis. The results are as follows:1 Bt CrylAc toxin has high toxicity to H. armigera, but has low toxicity to M. separata.

本论文是以棉铃虫和粘虫为实验试虫，研究苏云金芽孢杆菌Bt CrylAcE毒素对昆虫的作用机理，为更好的了解Bt的作用机理以及了解昆虫的抗性问题奠定理论基础。

According to seriate daily precipitation and runoff data from 1980 to 1982, we use the model to identify parameter and the periods of from 1983 to 1986 and from 1990 to 2000 is used to validate model.

说明LL—Ⅱ模型真实的反映了流域的水循环机理，该模型同时考虑了蓄满产流和超渗产流等不同产流机理，适合在我国不同水文特性的流域使用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。