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The results showed that MGM had good spherical shape and narrow size distribution,and the particles with diameters ranging from 0.13 mm to 0.28 mm were about 91 wt%.The surface hydrophilicity of Fe3O4 microcrystal was improved by formamide dispersing treatment.The gel particles made by the copolymerization of glycidyl methacrylate and N,N′-methylene bisacrylamide could encapsule Fe3O4 microcrystal to produce colloid cores,and uniform and stable MGM microspheres were formed by the conglomeration of the colloid cores.

结果表明,合成的MGM呈球形,且粒度分布较窄,粒径为0.13~0.28 mm的粒子占91%;甲酰胺分散Fe3O4,微晶表面的亲水性进一步增强,单体甲基丙烯酸缩水甘油酯和 N,N′亚甲基双丙烯酰胺交联共聚生成的胶粒能够包埋Fe3O4微晶形成胶核,胶核聚集形成均匀、稳定的MGM微球。

The colour of most detected bands became light in the five media with the order of mannosan, mannose, xylan, glucose and pectin.(4)The pectinase in the supernatant was purified by centrifuge , acetone precipitation and sephadex G-75 cloumngel filtration. The specific activity was increased 9.8-fold with an activity recovery of 32.98%.The molecular weight of pectinase was 42.2KD estimated by SDS-PAGE.

确立了以葡萄糖培养基6h的发酵液为提取果胶酶的最初取样点,发酵液经离心,丙酮沉淀,Sephadex G-75葡聚糖凝胶柱层析后获得了凝胶电泳均一的样品,比活力较原酶液提高了9.8倍,回收率达到了32.98%,用SDS-PAGE凝胶电泳测的纯化后的果胶酶分子量为42.2KD。

Most of the substances in the deposit were the nonsticky calcium carbonate and fines that could adhere to the sticky contaminants and deposit together, resulting in a great deal of the deposit.

对福建南平纸厂网前压力筛处的胶粘物进行分离和分析发现,以聚醋酸乙烯酯和聚丙烯酸酯为代表的人工合成聚合物以及机械浆中的木材树脂是产生胶粘物的根本来源,但它们在胶粘物沉积中的含量只有5%左右。

This pattern is characterized by the combination of pro-MMP-2 and membrane type 1 (MT1)-MMP expression, which drie pericellular generation of actie MMP-2 and local degradation of normal lier matrix. In addition there is a marked increase in expression of TIMP-1 leading to a more global inhibition of degradation of fibrillar lier collagens by interstitial collagenases (MMP-1/MMP-13). These pathways play a significant role in the progression of lier fibrosis.

其降解肝正常基质,同时抑制引起肝纤维化的纤维胶原降解,这种情况的特点是前明胶酶A合成和膜型1-MMP表达,使得小叶内细胞激活MMP-2和降解当处的正常肝基质,此外血浆1型组织基质金属蛋白酶抑制剂(TIMP-1)明显升高引起广泛的抑制间隙胶原酶(MMP-1/MMP-13)对纤维肝脏胶原的降解。

A case is made that areas of chronic demyelination arise because of concurrent loss of oligodendrocyte progenitor cells and oligodendrocytes and that because of the slow rate of repopulation that occurs in old individuals the recruited OPCs are not exposed to the acute inflammatory environment required to generate remyelinating oligodendrocytes.

一种说法是慢性脱髓鞘的区域产生系因少突胶质原始细胞和少突胶质细胞并存,而且因老年个体中缓慢的再生率,补充的OPCs没有暴露于产生髓鞘再生少突胶质细胞需要的急性炎症的环境。

The results show sheafing strength of wood glued-product produced by adhesive prepared with the optimal formulation of six starch-based API wood adhesive can completely meet requirement of JIS K6806 and each property indices of adhesive satisfy demand for the practical process technology.

其次,以复合变性玉米淀粉、乙二酸、聚乙烯醇、P-MDI为影响因素,按照日本JIS K6806标准中关于水性高分子-异氰酸酯木材胶粘剂胶接木材时的不同耐水性要求,通过正交试验,分别优化出Ⅰ型、Ⅱ型中Ⅰ、Ⅱ类的常态胶接、热水浸渍、反复煮沸胶接强度的六种淀粉基API的配方,并在对实验结果进行了验证性试验的基础上,进行了工业化生产试验。

PART 1 EXPRESSION OF MMP/TIMP IN SKELETAL MUSCLE OF ARTERIAL OCCLUSION DISEASE MODELS OF DOG'S HIND LIMB Objective To study the distribution changes of typeⅠand typeⅢcollagen in skeletal muscle of arterial occlusion disease models of dog's hind limb and the expression of MMP-2/TIMP-2 in skeletal muscle of arterial occlusion disease models of dog's hind limb. To investigate the significances of collagen metabolism and MMPs in skeletal muscle remodeling due to ischemia.

第一部分MMP/TIMP在犬后肢动脉闭塞性病变模型骨骼肌中表达的变化目的研究Ⅰ型胶原、Ⅲ型胶原在犬后肢动脉闭塞性病变模型骨骼肌的分布变化以及MMP-2、TIMP-2在犬后肢动脉闭塞性病变模型骨骼肌表达的变化,探讨胶原代谢和基质金属酶系统在缺血导致的骨骼肌重塑中的意义和作用。

Rubber trees initiate laticifer differentiation in June and July while no laticifer differentiation occur during the periods from November to May under natural conditions on Hainan Island. Application of jasmonates induced laticifer formation in both immature and mature rubber trees. Tapping and/or pre-tapping enhanced the ability of vascular cambia to differentiate the secondary laticifers.

结果表明,在海南岛自然条件下,乳管分化开始于6~7月份,在11月~翌年的5月没有乳管分化;割胶包括正式割胶前的预割能显著提高橡胶树形成层分化乳管的能力,其影响的范围相当大;外施茉莉酸对未开割树和割胶树的乳管分化都有促进作用。

Based on major ingredients of the distillery waste water and the material consumption in the fermentation of Welan gum, using distillery waste water as the processes water, the recycle fermentation medium of Welan was determined, and the closed-circuit technology of circular utilization with distillery wastewater constructed, and the purpose of clean production achieved.

在分析乙醇蒸馏母液主要成分的基础上,对比威兰胶发酵过程的物质耗用量,以蒸馏母液作为配制培养基用水,确定威兰胶循环发酵培养基的组成,构建威兰胶生产废液循环利用的闭路工艺,达到清洁生产的目的。

We have made use of the spectral of effective gluons in static limit, calculated the effective thermodynamic potential in QGP with a soft exchange gluon at two-loop level, and studied the influence from the transverse gluon width to the potential.

我们先采用静极限下有效胶子的谱函数,通过计算含单个软交换胶子的QGP系统的热力学势直到两圈,研究了横胶子的有限宽度对系统热力学势的影响。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。