性能

Epoxy resin is an important category of thermosetting resin and is widely used in applications such as adhesion, coating, nonconductor materials, machine manufacturing and advanced composites due to its excellent chemical stability, shaping facility, thermal properties and low cost.

环氧树脂是一类重要的热固性树脂，以其优异的粘接性能、耐磨性能、机械性能、电绝缘性能、化学稳定性能、耐高温性能，以及低收缩率，易加工成形性和低廉的成本等优点，成为在胶粘剂、涂料、绝缘材料以及先进复合材料等领域得到最广泛使用的树脂之一。

The new method is given to design the optimum profile modification curve design The effects of optimum profile gear in improving the dynamic performance of gear transmission are verified in the Gear Dynamic Performance Test Rig In this dissertation, the main study contents and creative results are shown as following: The influences on the gear transmission system caused by the gear's accumulated error (periodic error and harmonic error) are theoretically studied. A new method is developed to simulate the gear's harmonic error by using the 2-order MARKOV process A simulated model of the dynamic performance which is excited by the gear's accumulated error is obtained.

本文在前人大量研究的基础上，结合作者承担的国家自然科学基金项目"齿轮传动动态系统辨识与三维修形研究"和山东省自然科学基金项目"齿轮传动动态性能仿真及结构参数、齿形的优化修形"，采用理论和试验相结合的新思路，系统地研究了齿轮传动的动态性能，建立了能正确描述齿轮传动系统动态性能的仿真模型和系统辨识模型，给出了确定齿轮传动轮齿修形曲线的优化设计方法，利用自行研制的齿轮传动动态性能试验装置，验证了优化修形齿轮对提高齿轮传动动态性能的突出作用。

Coke properties has been studied by high temperature SiC oven、infrared gas analyzer and X-ray diffraction. First set forward the relationship between UPC and coke reactivity, strength, fine coke and coke graphitization, and creatively find the graphitization degree of coke tends to 100% when temp. reaches to 1350℃ UPC is profitableness to coke properties;②The effect of UPC on liquid slag distribution and flow functions in experiment oven has been studied by mathematics simulation The effect of UPC on taking shape and dropping of high titanium-bearing B. F. slag has been studied by using high temp. oven simulation cohesive zone and dropping zone of blast furnace.

为了弄清楚这部分UPC对高炉冶炼钒钛磁铁矿过程的影响，①在实验室利用高温SiC炉、红外线气体分析仪、X—射线衍射仪等进行了一系列UPC对焦炭性能及石墨化度的影响研究，提出了UPC与焦炭反应性、抗压强度、粉化性能及焦炭石墨化度之间的关系，创造性的发现高炉内1350℃以上，焦炭的石墨化度已达100％，UPC对焦炭性能的影响有益而无一害；②采用数学模拟方式研究了UPC对实验炉内液态渣分布及流函数的影响，并利用高温熔滴炉模拟高炉软熔带、滴落带研究UPC对高钛渣滴落性能的影响，采用旋转式粘度计测定滴落渣性能并通过高倍矿相显微镜观察了滴落渣的矿物结构。

The merits of its performance, it is representative of the advantages and disadvantages of pump performance, the anti-clogging sewage pump performance, the level of efficiency and cavitation performance, anti-abrasion performance mainly by the pressurized water pump and leaves room to ensure that the two major components.

其性能的优劣，也就代表泵性能的优劣，污水泵的抗堵塞性能，效率的高低，以及汽蚀性能，抗磨蚀性能主要是由叶泵和压水室两大部件来保证。

Compared with that of 3Cr13 alloy, the oxidation resistance of the composites containing 5 vol.％TiC particle was improved greatly at 850℃, but the improvement was relatively limited at 950℃. But the oxidation resistance of 1Cr18Ni9 composites containing 5 vol.％ TiC particle was obviously improved at 950℃, and at 850℃ the improvement is not large. The TiC particle can improve the oxidation resistance mainly was by developing the oxidation selectiveness of the Cr element as to change the phase constitution of the oxidation film, to alleviate the production of the stress in the oxidation film and to improve the cohesive force of the oxidation film or matrix interface and the chemical combination of the oxidation film.

与3Cr13合金相比，含5％volTiC颗粒的复合材料在850℃的抗氧化性能得到大幅度提高，而在950℃复合材料的抗氧化性能提高作用却是有限的；与1Cr18Ni9合金相比，含5％volTiC颗粒的复合材料在850℃的抗氧化性能略有提高，而950℃复合材料的抗氧化性能提高却是明显的；TiC颗粒可以提高两种基体合金抗氧化性能，主要是通过促进Cr的选择性氧化，进而改变氧化膜的相组成、减缓氧化膜内应力的产生、增加氧化膜/基体界面凝聚力及提高氧化膜化学结合力而实现的。

The results showed the maximum cyclic stress of CFRP bar should be under 70 percent of ultimate tensile stress; when the maximum cyclic stress decrease 5 percent of ultimate tensile stress, the fatigue life of CFRP bars increase generally 10 times; with the decrease of cyclic ratios, the fatigue life of CFRP bars decrease heavily; for the brittleness, CFRP bar should possess a higher reserve of strength, the margin of safety against failure is a necessity; according to experimental cyclic stress-fatigue life curve, the fatigue behavior of CFRP bar is much better than the fatigue behavior of Q235 steel.

将纤维复合材料用于土木工程结构的研究成果，已应用于实际工程【2j_国外对CFRP筋的一些短期性能以及CFRP筋构件的粘结性能、CFRP加筋混凝土结构的抗弯性能等都做了大量的研究，但对其长国家自然科学基金50278029，50538020和交通部西部交通科技200l431882021资助项目。2OO6年2月13日收到初稿；2006年9月4日收到修改稿。本文联系人：欧进萍，院士期性能如疲劳性能的研究还不够

It shows in clinic as tooth sensitivity, pulpitis,periodontitis,food impaction ,deformation of basifacial caused of loss of occlusal height, temporomandibular disorder syndrome, etc. The wear property of artificial tooth material will lead a direct effect to restoration result, when it exists in oral environment. It will cause tooth enamel loss too much in a very short period, if the wear property of artificial tooth superior to tooth enamel; but if it is inferior to tooth enamel, serious wear will occur on restoration occlusions, which will lead to loss of bite functions and even decrease of occlusal vertical dimension, disorder of bite functions, etc. Therefore, it is important to artificialtooth material not only it"s biotic compatibility, mechanical function, chemistry property but also it"s wear property.

当口腔中存在修复体时，人工牙材料的磨耗性能也直接影响临床修复的效果，当其磨耗性能强于天然牙釉质门时，将会引起天然牙釉质过度磨耗；当其磨耗性低于天然牙釉质时，又会在较短时期内引起修复体咬合面磨损过度，失去咬合功能，严重者甚至出现咬合垂直距离降低，咬合功能紊乱等症状因此，对于人工牙材料除了考虑生物相容性、机械性能及化学性能外，还应考虑到材料的磨耗性能，而磨耗率的测定一直是评价天然牙及人工牙磨耗性能的优越指标之一。

These indexes describe the fabric's thermal properties during the heated process. The heat insulation ratio preferably manifests fabric's insulation property; the difference of calefactive ratio describes dynamic conditions average calefactive case; effective thermal conductivity and compound thermal resistance are mainly considering the wholly testing characteristics and describing the compound thermal property; the response time expresses the time of step response during dynamic testing process. 3. Dynamic heat transmitting properties of fabrics and warmth retention testing methods have been developed; many different textile materials are used for actual test, and the data are analyzed, illustrated, and compared.

这些指标从不同的侧面描述了试验过程中织物试样的传热隔热性能，其中隔热率是从整体上来考虑的指标，它较好的描述了试样的隔热保温性能；升温速率差考虑的是动态变化过程中平均升温变化情况，它的大小表现了织物热性能的差异；名义导热系数和复合热阻是从试验装置的特点出发整体来考虑的热传递指标，描述了铜板、试样、铜板三者复合时的传热性能与隔热性能；而温度动态响应时间表示动态热传递过程中趋于稳态所经历的时间。

These indexes describe the fabric"s thermal properties during the heated process. The heat insulation ratio preferably manifests fabric"s insulation property; the difference of calefactive ratio describes dynamic conditions average calefactive case; effective thermal conductivity and compound thermal resistance are mainly considering the wholly testing characteristics and describing the compound thermal property; the response time expresses the time of step response duringdynamic testing process.3. Dynamic heat transmitting properties of fabrics and warmth retention testing methods have been developed; many different textile materials are used for actual test, and the data are analyzed, illustrated, and compared.

这些指标从不同的侧面描述了试验过程中织物试样的传热隔热性能，其中隔热率是从整体上来考虑的指标，它较好的描述了试样的隔热保温性能；升温速率差考虑的是动态变化过程中平均升温变化情况，它的大小表现了织物热性能的差异；名义导热系数和复合热阻是从试验装置的特点出发整体来考虑的热传递指标，描述了铜板、试样、铜板三者复合时的传热性能与隔热性能；而温度动态响应时间表示动态热传递过程中趋于稳态所经历的时间。

Compared with the Epoxy resorcinol-formaldehyde resin pretreatment system and Maleic anhydride pretreatment system developed by Xusigui, the 40% carbolated styrene-butadiene latex system can keep the composite"s properties and reduce the cost of pretreatment and simplify the pretreatment technology; especially to the HST 2073 latex system, the composite"s mechanics properties are improved greatly. Secondly, the composite"s comprehensive properties and interface performance are improved by reinforced with short fiber grafted with rubber in the surface. Thirdly, to simplify the production technology of composite, we add TKM-M and RF-90 as adhesive agent to the composite blended in an internal mixer, so as to the composite can be used to industry widely, then the effect of the amount adhesive agent on the composite"s properties and interface adhesive performance was studied, from the experiments the optimum amount of adhesive agent was deduced.

其中采用特软羧基丁苯胶乳预处理短纤维的方案，降低了预处理成本，相对许泗贵的低分子环氧和马来酸酐体系来说，预处理工艺大大简化了，而材料的力学性能保持良好，尤其是 HST 2073A 胶乳预处理体系，力学性能有较大幅度的提高；第二，通过对尼龙短纤维表面进行接枝橡胶分子链预处理，改善了复合材料的界面粘合性能，复合材料的综合性能也得到了相应的提高；第三，为了简化复合材料的生产工艺，使复合材料的应用得到工业化推广，我们选用TKM—M和RF—90长效增粘剂，直接加入短纤维橡胶复合材料中，采用密炼工艺，探讨了增粘剂的用量对复合材料界面粘合以及性能的影响，得出了增粘剂在复合材料中的最佳用量。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。