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Ni-P-mCMC/mCS bipolar membrane was prepared from carboxymethyl cellulose modified with phosphorylated agent as a cation exchange layer and chitosan modified with glutaraldehyde as an anion exchange layer. The electrolysis cell was constituted by Ni-P-mCMC/mCS BPM as a septum for electrogenerating furfural alcohol and furoic acid.
以磷酸化试剂改性羧甲基纤维素钠制备了阳膜层,以戊二醛改性壳聚糖制备了阴膜层溶胶,将阴膜层溶胶流延于阳膜层上,制备了P-mCMC/mCS双极膜,而后以化学镀方法在阳膜层表面镀镍,制备了Ni-P-mCMC/mCS双极膜,并应用于成对电合成糠醇、糠酸。
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The trivalent chromium passivation film based on zincate plating obtained has compact structure with no obvious crack, and excellent anticorrosion performance. Different compositions are detected from the surface to inner film, the surface mainly contains Cr2O3-Cr3-ZnO compound, the inner (1030 nm to surface) composes of Cr2O3-ZnO-Zn.The forming process of passivation film possibly consists of four steps which are zinc dissolution, basic area appearance, gelatiniform film forming and converting to passivation film.
结果表明:锌酸盐镀锌层的三价铬钝化膜表面结构致密、无明显裂纹,具有较好的耐腐蚀性能;这种钝化膜表层与里层的组成不同,表层的组成为Cr2O3-Cr3-ZnO共混物;里层(离表层10~30 nm处)的主要组成为Cr2O3-ZnO-Zn共混物;钝化膜的成膜过程可能包括镀锌层的溶解、碱性薄层的形成、胶状膜的形成和胶状膜转化成钝化膜4个步骤。
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The pore distribution in the direction of coating thickness was self-existent and could not join to intercommunicating pore.The pore diameter was very tiny so that it could prevent hydrotropic solution entering into the pore.
机械镀锌的形层过程既没有热镀锌那样的高温冶金反应,也没有电镀锌那样的电沉积效应,镀层是常温常压下利用化学吸附沉积和机械碰撞使金属锌粉在工件表面镶嵌堆积而成[1],所以人们认为机械镀锌镀层的致密性要低于电镀和热镀锌镀层,但机械镀锌镀层又表现出良好的耐腐蚀性能。
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Thermal stability of different lamellar microstructure in TiAl alloys was studied by TEM methods. Thermal stability of lamellar microstructure in TiAl alloys is not only related to the grain size/average interlamellar spacing, but also closely related to interlamellar boundary structure.
本文还用TEM等手段研究了TiAl合金不同片层显微组织热稳定性,发现TiAl合金的片层组织热稳定性不仅与片层晶粒的大小以及片层间距有关,而且还与片层界面的位错结构等因素密切相关。
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Results The intramural capillary lymphatics of rat's rectum were observed in deep lamina propria of tunica membrane and the dermal papilla layer of anal pectin. The intramural capillary lymphatics and lymphatics were both observed in tela submucosa, reticular layer, hypodermis and intermuscular and serosa. The capillary lymphatics in rectums' wall have the similar ultrastructure feature to normal ones. Three kinds of endothelial cells junctions are overlapping junctions, embedding-junctions and end to-end-type junctions. About 21% of cell-junctions are opening types. There are normal organelles and many vesicals in the endothelial of capillary lymphatics.
结果 直肠壁内的毛细淋巴管见於黏膜固有层深部和肛梳区真皮乳头层;在黏膜下层和肛梳区的网状层、皮下组织以及肌层和浆膜层内均有毛细淋巴管和淋巴管,直肠壁内毛细淋巴管的超微结构具有一般毛细淋巴管超微结构的特点,内皮细胞连接有重叠、嵌插和端端连接3种类型,处於开放状态约占21%;胞质内含有一般的细胞器,幷含有大量的囊泡。
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The results were expressed in mean±1SD. Pearson X~2 test and One-way ANOVA test were used. The data analyzed using the SPSS (version 11.5). Results: The sensitivity, specificity, positive and negative value of US for the LPEH model on the children cadaver were 88%, 84%, 79%, 91%, respectively. With regard to the thickness of femora head cartilage, the thickness of the anterior layer or posterior layer, there were no significant differences among three groups. However, the anterior layer was thicker than the posterior layer in three groups. The fluid in hip joint was detected in all of 21 symptomatic hips, which was clear commonly (90%) in early procedure. The amount of fluid in anterior recess showed a positive correlation with age (p .05). No fluid was detected in the asymptomatic and normal hips (2mm). The mean maximum width of inferomedial recess was significantly larger than that of anterior recess (12.50±4.04mm vs.4.35±0.8mm, p 0.05) in the symptomatic hip joints. The echogenic entrapped labral plicaes were demonstrated in the inferomedial recess in all of 21 children with LPEH, whose length and width ranged from 5.3mm-25.0mm (mean,15.6±5.6mm) and from 4.0mm-17.0mm (mean,8.9±7.8mm).
结果1,尸体LPEH髋关节模型的超声诊断敏感性、特异性分别为88%、84%,阳性预测值、阴性预测值分别为79%、91%。2,21例患儿的LPEH患髋(21侧)、健髋(21侧),以及21例正常儿童健髋(42侧)的超声检查显示:髋关节周围软组织及股骨头无形态结构差别;股骨头软骨厚度无统计学差异(3.5±0.5mm vs.3.6±0.4mm vs.3.6±0.5mm,p>0.05);关节囊前层及后层厚度无统计学差异(前层厚度2.79±0.74 mm vs.2.56±0.40mm vs.2.56±0.72mm;后层厚度2.70±0.82mm vs.2.48±0.54mm vs.2.44±0.58mm,p>0.05),但LPEH患髋关节囊前、后层均较后二组有增厚趋势。3,LPEH患髋均存在关节腔内积液,且早期较为清晰;积液以髋关节内下间隙明显,内下间隙较前间隙明显增宽(12.50±4.04mm vs.4.35±0.8mm,p<0.05),其内见嵌顿滑膜唇皱襞呈稍强回声的占位性团块,长约15.6±5.6mm,宽约8.9±7.8mm,90.5%(19/21)嵌顿皱襞内未见血流信号。4,所有LPEH患髋治疗后超声复诊均显示正常。
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And the long axis of simple pit Varied along with CMfs orientation of each secondary wall.This paper proposed a structure model of Phyllostachys pubescens cell wall,based on the results of CMfs deposition and thickness of each secondary wall.Secondly, it was a multilamellate structure of parenchyma cell wall,but its thin and thick lamellate was not evident.CMfs orientation on primary wall of parenchyma cell was perpendicular to cell axis.
纤维的细胞壁为典型的薄厚层相间的同心圆多层结构,初生壁CMfs排列方向与细胞轴向垂直90°次生壁中厚层的CMfs均以接近平行的小角度(0~5°沉积;薄层一般以大角度沉积,且薄层的CMfs角度由壁外侧向细胞腔里逐渐增加,直到完全垂直。
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Based on lots of achievements of predecessors, directed by reservoir sedimentology, high-resolution sequence stratigraphy and petroleum geology, taking full advantage of loggin, core and thin section data from different wells, this paper has taken detailed study on the Upper Paleozoic strata in Tabamiao area.
本论文在众多前人研究成果的基础上,以储层沉积学,及高分辨率层序地层学、石油地质学等理论为指导,充分利用测井、钻井岩芯、薄片鉴定等资料,针对塔巴庙地区上古生界沉积相及沉积微相类型与展布,高分辨率层序地层特征与层序—岩相古地理演化,成岩作用类型与序列,孔隙类型与特征,以及储层物性特征与分布规律等方面展开了系统深入研究,最后对有利区带进行了预测。
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The structure of the bladder was defined firstly to be 6 layers, tegument , exterior mesenchyma , parenchyma layer , interior mesenchyma , interior matrix zone and interior layer . The structure of the cervix was 3 layers, tegument , mesenchyma and Parenchyma .
首次明确了猪囊尾蚴的囊壁由外向内有皮层、外侧间质层、实质区、内侧间质区、内侧皮下基质区和内层6层结构;头颈部由外向内有皮层、间质层和实质区3层结构。
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The phase structure of the ceramic-coating includes γ-Al2O3, AlPO4 and CoO. The forming process of the ceramic-coating includes iron movement, melting of surface layer, movement of electrolyte towards the melting-zone and the final nucleus-forming and sintering. The ceramic coating looks like islands and islets. The ceramic coating and the matrix are integrated metallurgically.
结果表明:该陶瓷膜层由γ-Al2O3, AlPO4和CoO等组成;通过对陶瓷膜层的表面形貌和显微结构观察及分析,发现陶瓷膜层形成过程是一个离子运动,表面层不断被击穿形成熔融区,处理体系中的电解质不断向熔融区运动、成核并迅速烧结的过程;陶瓷膜层呈现岛屿状;陶瓷膜层与基体之间为冶金结合。
- 推荐网络例句
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I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
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At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
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Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。