敏化

This paper analyzes the defects in acid sensitivity standards from the rock/acid reaction mechanism and experimental methods and points out existing results from acid sensitivity evaluations cannot be as the judged bases for performing acid treatment in this reservoir.

从酸-岩反应机理和试验方法两方面分析了酸敏评价标准存在的问题，指出现行的酸敏评价试验结果不能作为储集层能否进行酸化处理的判定依据。

Results: The instant effects of Green Or (94.32%) and Gluma desensitizer (93.41%) were better than that of sodium fluoride glycerin (71.83%). One month later, there were no significant differences between 3 groups.

结果：极固宁脱敏组和Gluma脱敏剂的即刻有效率分别为94.32%、93.41%，显著优于氟化钠甘油脱敏组(71.83%)，而脱敏后1个月，3组间无显著性差异。

Methods A total of 147 patients with dentin hypersensitivity were randomly divided into two groups, 74 patients with 215 teeth in treatment group were treated with GLUMA desensitizer, and 73 patients with 186 teeth in control group were treated with 750 g/L sodium fluoride.

选取牙齿感觉过敏症病人147例401个牙，随机分为两组：治疗组74例215个牙，用GLUMA系统处理剂脱敏；对照组73例186个牙，用750g/L氟化钠甘油脱敏，观察两组即刻，1个月，3个月后的疗效。

Methods: 774 dentin hypersensitivity teeth of 99 patients were randomly divided into three groups: Group A-Green Or, Group B-Gluma desensitizer, Group C-75% sodium fluoride glycerin. The results of desensitization in 3 groups were evaluated immediately and 1 month after treatment by using a visual analogue scale.

将99例龈下刮冶术所致的774颗根面牙本质过敏症患牙随机分为3组，即极固宁脱敏组、Gluma脱敏剂组和氟化钠甘油脱敏组，分别进行脱敏治疗，观察即刻、1个月疼痛的VAS值。

In this thesis, three major achievements were made in theoretical study: conditions and rules for preparing nano-powders by chemical precipitation are analyzed from the point of view of thermodynamics and kinetics, the principle, standards and experimental method for the aqueous dispersion of nano-scaled metal oxide powders were proposed and verified, mathematical model of nano-filming addition of dopants by chemical coprecipitation was established. In experimental research, nm-ZnO, nm-Bi〓O〓, nm-Co〓O〓 and nm-MnO powder with spherical shape, narrow particle size distribution and small particle size were prepared successfully, highly stable and dispersive aqueous suspensoid of nm-ZnO, nm-TiO〓, nm-Co〓O〓 and nm-MnO powder were prepared successfully and surface modification on these nano-powders was also achieved, 0-3 nanocomposite ZnO varistors with nm-ZnO, nm-TiO〓and nm-MnO respectively were prepared successfully by conventional mechanical attrition, and exhibited much better electrical properties than those of conventional varistors.

综上所述，本文在理论研究方面取得了三项成果：（1）从热力学和动力学角度推导并分析了液相化学沉淀法制备纳米粉体的反应条件和规律，（2）提出了纳米氧化物的水分散体系的设计原理、规范和通用实验步骤，（3）提出了共沉淀的数学模型和计算方法；在实验方面所取得的成果有：（1）成功制备了粒度小、分布窄、形貌对称的纳米氧化锌、纳米氧化铋、纳米氧化钴和纳米氧化亚锰，（2）成功地制备了纳米氧化锌、纳米二氧化钛、纳米氧化钴和纳米氧化锰的高稳定分散悬浮液并实现了干粉体的表面改性，（3）成功地进行了纳米氧化锌、纳米二氧化钛和纳米氧化锰对压敏电阻的0—3复合掺杂实验，试样性能远优于常规压敏电阻，为实现压敏电阻的高能高压化提供了新的方法和思路。

When Gluma is applied in vivo, two reactions occur: first, GA reacts with part of the serum albumin in dentinal fluid, which induces a precipitation of serum albumin; and, second, the reaction of GA with serum albumin forms dihydropyridinium, whose disproportionation gives rise to free radicals, and the free radicals induce the polymerization of HEMA.

首次提出Gluma的脱敏机理为：当Gluma涂在过敏的牙本质上时，首先戊二醛交联牙本质液中的血清蛋白并产生沉淀；同时戊二醛与血清蛋白的反应产生二氢吡啶盐，它发生歧化反应，歧化过程中会有自由基产生，从而引发HEMA 聚合，生成另外一部分沉淀，这两部分沉淀共同堵住牙本质小管，起到了脱敏作用。

We hypothesised that if wind-up is a proxy for central sensitisation induced human isceral pain hypersensitiity, then oesophageal wind-up should be enhanced by secondary hyperalgesia.

我们假定如果以易化现象代替引起人类内脏痛觉高敏感的中枢致敏，那么，继发性痛觉增敏应该增强食管易化。

Enhanced wind-up after secondary oesophageal hyperalgesia suggests that isceral pain hypersensitiity induced by central sensitisation results from increased central neuronal excitability.

继发性食管痛觉增敏后的易化效应增强，这表明了内脏痛觉高敏感是由中枢致敏诱发，而中枢致敏由中枢神经的兴奋性决定。

Using whole-cell patch clamp recording, we observed multiple distinct ATPinduced currents in isolated DRG neurons of adult rats, each with unique desensitizing kinetics.β,γ-meATP, agonist of P2X1 receptor also induced fast inactivating and slowly desensitization current in small DRG neurons. PDBu, a selective agonist for PKC, decreased the P2X receptor-mediated inward currents in a dose-dependent manner, while SNP, nitric oxide donor, potentiated the ATP-evoked current through NO-cGMP pathway.

全细胞膜片钳记录观察到，在成年鼠离体DRG伤害性感受相关的小直径神经元上，ATP可诱导出多种具不同反应型式及脱敏动力学的由P2X受体介导的内向流；P2X1受体激动剂β，γ-meATP亦可诱导出快脱敏及慢脱敏两种型式的内向流；PKC激动剂可剂量依赖地削弱P2X受体介导的内向流，而NO供体硝普钠可通过NO-cGMP通途显著易化ATP介导的内向流。

In Zheng Min"s pomes, we can find that life is on the science constantly.The third part: text and speaking-In this part, I pay attention to the natural female consciousness in the view of "female oneself in Zheng Mins poetry writing.

第二部分：郑敏的生命写作——文章从存在的承担与言说、自救化的写作和母性思维三个层面展现郑敏诗歌写作的生命意义，并由此证明&生命&在郑敏诗歌写作中时时刻刻的&在场&。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。