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The paper investigated the effect of malayic grafted polypropylene on WF/PP interface, the respective influence of filler size and filler content on composite performance, and the influence of treatment by stearic acid, titanmi...
研究了马来酸酐接枝聚丙烯对复合材料的界面与性能的影响,竹粉尺寸及含量对复合材料力学性能及加工性能的影响,硬脂酸及偶联剂NDZ105、NDZ201、KH550 对木粉/聚丙烯复合材料界面与性能的影响,以及玻纤/木粉/PP 三相复合体系中玻纤含量和木粉含量对材料力学性能的影响。
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This paper focuses on the stability study of Rhizopus oryzae IFO4697 when used for the methanolysis of renewable oils for biodiesel production. The results showed that water content was important for achieving high catalytic activity and good stability of the biocatalyst. The optimum water content was found to be 5%-15%. Both particle size and desiccation methods showed no obvious effect on the stability of the biocatalyst. With GA cross-linking pretreatment, the stability of the biocatalyst could be improved significantly. When Rhizopus oryzae IFO4697 repeatedly used for next batch reaction, direct vacuum filtration was found to be a good way for the maintenance of good stability of the biocatalyst.
本实验对固定化全细胞Rhizopus oryzae IFO4697催化植物油脂合成生物柴油的稳定性进行了系统地研究,结果表明:反应体系水含量对于全细胞催化剂的反应活性和催化稳定性有重要影响, 5%~15%含水量适宜;研究范围内,载体粒度及干燥方式对稳定性影响不显著;经过戊二醛交联后,全细胞催化油脂甲醇解反应的稳定性显著提高, 1200 h反应后,仍然可以保持75%的生物柴油得率;真空抽滤直接回用的方式有利于稳定性的保持。
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In terms of culm size, biomass, distribution and adaptability, 33 bamboo species with potential value for energy-oriented use are listed in this paper, among which 14 being sympodial, 18 monopodial and 1 amphipodial.
摘要根据竹子个体大小、生物量高低及其分布状况和适应性,文中列出了33种具有潜在能源化利用价值的竹种,其中,合轴丛生或散生型14种,单轴散生型18种,复抽混生型1种。
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In the paper, the multidentate carboxylic acid ligands were used to combine with Cd, resulting in the three dimensional MOCPs single crystals—C12H16CdN2O8, with a low temperature hydrothermal synthesis method. The sample was characterized with IR spectra to affirm the organic groups in the frameworks, single-crystal X-ray diffraction to determine the crystal structure and composition of the frameworks, N2 adsorption isotherms at low temperature to measure the specific surface area and pore size distribution, and with TGA/DGA analysis to scale the thermal stability. Furthermore, the dissolution property and the photocatalytic activity of MOCPs under the ultraviolet ray condition were explored.
本文用低温水热合成法,用多齿羧酸配体异烟酸和Cd配位合成出[Cd(C6H4O2N)2(H2O)4]∞三维晶体并进行了表征:采用红外光谱法确认骨架中的有机官能团;用单晶X射线衍射分析法测定MOCPs的晶体结构,并确定其骨架的组成;通过低温氮气吸附等温线测定了其比表面积和孔径分布;以热重分析和差热分析测定材料骨架的热稳定性;测定了晶体的溶解性能;最后以亚甲基蓝为目标降解物,对[Cd(C6H4O2N)2(H2O)4]∞的光催化活性及亚甲基蓝的氧化动力学进行了探索(来源:A2444BC论文网www.abclunwen.com)。
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Digital image process technique is used in pantographic faults monitoring, and a new algorithm named window-edge tracking is proposed in this paper. Based on the binary image of edges which is detected by Canny operator, a window in proper size is set to track the discontinuous edges to estimate the position of the lost edges. With this method continuous edges will be obtained, and continuous and smooth edges will be got after least-squares curve-fitting.
中文摘要:将数字图像处理技术应用于受电弓故障监测,提出一种新型的窗口边缘跟踪算法,在采用Canny算子计算出边缘二值图的基础上,设置适当大小的窗口对初始不连续边缘进行遍历,估计断点处边缘点位置获得连续边缘,并采用最小二乘法拟和出连续平滑的曲线函数。
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In this paper,the effects that size reduction of the raw material,the conditioning temperature,the post-cooking time,the conditioning moisture content and the compressing ratio of the die on the durability for the aquatic pelleted feed were studied.
试验研究了原料粉碎粒度、调质温度、后熟化时间、入模水分和环模压缩比五个因素对水产颗粒料耐水性的影响。
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An adaptive motion estimation algorithm named RAME is proposed in this paper, which has improved the accuracy of the prediction. RAME and the variable-size-block binDCT are used in motion regions. It has improved the image quality in these regions.
首先,采用背景减法进行运动目标检测,对运动区域,本文提出了一种高精度的自适应运动估计算法-RAME,采用RAME和可变尺寸块的birtDCT编码运动区域,增强其图像质量。
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This paper studies the vertical distribution of the mass concentration and particle size distribution of the respirable particles in autumn of Shijiazhuang.
研究了石家庄市秋季可吸入颗粒物质量浓度垂直分布和粒度分布特征。
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Previously contract information, property resource information need to be arranged by hand type data, the font size of Excel form is smaller and smaller, a4 paper wants sidewards to print.
以前合同信息、物业资源信息等都需要手工整理录入数据,Excel表格的字号越来越小,A4纸都要横着打印。
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In this paper, the mechanism research of lime dry hydration was studied using small equipment. Then the effect tendencies of operational parameter of hydration process(water/solid) on lime slaking rate、 particle size and specific surface was put forward.
本文利用小型机理实验装置进行了石灰干式消化机理实验研究,得出了消化工艺操作参数对生石灰的转化率、消化产物的粒径和比表面积的影响趋势。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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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。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力