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The paragenetic sequence of outcrop sandstones may induce to ealy compaction diagenetic facies、carbonate cementation diagenetic facies and feldspar dissolving diagenetic facies, the diagenetic facies of core sandstones are ealy compaction diagenetic facies、ankerite diagenetic facies、authigenetic quarze and kaolinite filling diagenetic facies.

露头砂岩的成岩组合可归纳为早期压实成岩相、碳酸盐胶结成岩相和长石溶解成岩相,岩芯砂岩成岩相为早期压实成岩相、铁白云石胶结成岩相、自生石英与高岭石充填成岩相。

Result show:the solution,extracted from rat rail tendons,consist mainly of type I collagen;No growth of bacteria in 37℃ thermostatic culture box for 72 hours;Absorbing the height of ultraviolet-spectrophotometry is 230 nm by using flicker photometer examination;Amino acid in type I collagen consist of aminoacetic acid(40 per cent) and proline(14.3 per cent);Under microscope:collagen gel netted constraction consist of original collagen fibril that had been fairly well-distributed and had a quite regular striate lines ;The collagen solution prepared collagen gel matrixes in 37℃ thermostasis for culture cells and also prepared collagen solid film by washing collagen gel with a phosphate solution for plasty surgery materials.

结果:提取液主要为Ⅰ型胶原蛋白;72小时37℃恒温培养箱内培养无细菌生长;紫外分光光度计测定,吸收高峰为230nm;氨基酸成分主要为甘氨酸:占40%,脯氨酸:14.3%。显微镜下见:相互交织的胶原原纤维结构组成的网状结构;纤维均匀,有规则横纹。胶原蛋白液在37℃恒温下,可制成凝胶,用于培养细胞;用磷酸液冲洗胶原蛋白凝胶可成固体片状,制成胶原膜,用作医用材料。

Exploration is done to the relationship of cot structure,cot rigidity to evenness of the resultant yarn and yarn strength;relationship of cot rigidity to friction factor and linear width of nipper jaws;relationship of cot diameter and telescoping tolerance to quality of resultant yarn .

阐述了胶辊结构、硬度与成纱条干、强力的关系,胶辊硬度与摩擦因数、钳口线宽度的关系;胶辊直径、套差与成纱质量的关系;分析了低硬度胶辊改善成纱条干的机理,指出胶辊制作中必须注意的问题及纺纱工艺配置。

The results showed that the effect of all conditions on gel strength was very large;the holding water ability was directly proportional to gel strength and viscosity;under the condition of no sodium chloride addition,the solidifying point and melting point were directly proportional to gel strength;however,when sodium...

结果表明,凝胶强度受各条件变化的影响很大;持水性与凝胶强度、粘度成正比关系;在不添加NaCl时,融点、凝固点与凝胶强度成正比关系,但添加NaCl时,则与NaCl浓度成正比关系;凝胶体具有热可逆性

The pcDNA〓-apoE〓 plasmid was transfected to SK-N-SH Neuroblastoma cell by liposome. It could be screened by G〓. The immunohistochemical assay was shown that neuroblastoma cell transfected by pcDNA〓-apoE〓 expressed the recombinant apoE protein. The intracellular expressed recombinant protein could inhibit the death of neuroblastoma cell induced by beta amyloidal peptides 25-35 fragment.

用pcDNA〓—apoE〓真核表达载体与脂质体共转染神经成纤维胶质瘤细胞,用G〓选择压力筛选,细胞免疫荧光检测表明,pcDNA〓—apoE〓转染的神经成纤维胶质瘤细胞表达了apoE〓重组蛋白,这种内源性的apoE〓重组蛋白对25μM Aβ25—35多肽诱导的神经成纤维胶质瘤细胞的死亡具有拮抗作用。

Objective: To explore the mechanisms resulting in the recurrence of urethral scar which make urethral strictures difficult to be cured, a series experiments were conducted to find potential effective factors involved in urethral scar formation and degradation, including the studies of extracellular matrix component of urethral stricture scar, the characteristics of urethral scar fibroblast, and the effects of urine on urethral fibroblast in vitro, as well as the studies to compare the difference of collagenase activity, type Ⅰ collagen and tissue inhibitor of metalloproteinase-1 (TIMP-1) in the tissues and cultured fibroblasts from normal urethra and strictured urethra respectively, and the studies to investigate the effect of antisense TIMP-1 oligodeoxyonucleotide on cell proliferation and collagenase activity of urethral scar fibroblast.

中文题名尿道瘢痕基础研究副题名胶原酶活性,TIMP-1的表达及其反义基因治疗外文题名 Experimental study on urethral scar-activity of collagenase,expression of TIMP-1,and antisense TIMP-1 gene transfection of urethral scar fibroblast 论文作者黄翔导师杨宇如教授学科专业外科学研究领域\研究方向学位级别博士学位授予单位四川大学学位授予日期2002 论文页码总数104页关键词尿道手术瘢痕胶原酶成纤维细胞尿道瘢痕馆藏号BSLW /2003 /R699 /12 目的:研究尿道瘢痕的细胞外基质的组成,尿道瘢痕成纤维细胞的生物学特性以及尿液对其生长的影响;比较胶原酶活性,金属蛋白酶组织抑制因子-1(TIMP-1)以及Ⅰ型胶原含量在尿道瘢痕和正常尿道组织及体外培养的成纤维细胞中的差异;研究反义TIMP-1寡核苷酸对尿道瘢痕成纤维细胞增殖以及胶原酶活性的影响。

The technology called agiationformatinggel,agiationstatic crystallization' has been used to synthetize NaA zeolite and the better products have been obtained.

为了合成出适合洗涤剂用的NaA沸石产品既有高的Ca2+交换容量又有小的粒度,作者尝试了用动态成胶、动-静晶化的技术合成洗涤剂用的NaA沸石,得到了较好的产品。

The hydrophobic monomers such as glycidyl octyl dimethylammonium chloride, glycidyl dodecyl dimethylammonium chloride, glycidyl tetradecyl dimethylammonium chloride was applied to the hydrophobic modification of two kinds of sodium cellulose sulfate in isopropyl alcohol under 65℃.The success of synthesis of a kind of novel amphoteric surfactant by FT-IR and NMR. 3. By the measuring surface tension of all kinds of amphoteric polymeric surfactants based on cellulose, the critic micelle concentration was obtained such as 0.4wt%、0.3wt%、0.25wt% and corresponding surface tension was about 30mN/m

通过动态接触角测量仪确定了各种纤维素表面活性剂的表面张力和临界胶束浓度,结果表明该类表面活性剂可与小分子表面活性剂的降低表面张力的能力相媲美,最低可达28.41 mN/m,随着疏水基中碳链的增长,降低表面张力的能力下降,而临界胶束浓度从0.4wt%相应降低0.25wt%;应用环境扫描电镜确定其不同浓度胶束形态,结果表明在较低浓度下形成棒状单分子胶束,随着浓度的升高,单分子胶束逐渐聚集成树枝状胶束,进一步提高浓度,则聚集成网状结构;此外,采用了高级流变仪对其溶液的流变性质进行了研究,结果表明其溶液属于剪切变稀流体,是高分子溶液特有的性质。

Our company was established in 2001, is a franchise company of food additives, the main agent of some well-known brand products at home and abroad, is Japan's Meiji FOS and India guar gum Songda national exclusive distributor, or Roche Vitamins Fonterra and New Zealand bovine colostrum powder, as well as Japan Ajinomoto aspartame, such as an agent of the East China, and all products are directly import declaration, the price is very advantageous.

我司成立于2001年,是一家专营食品添加剂的公司,主要代理一些国内外知名品牌的产品,是日本明治FOS和印度桑达瓜胶的全国独家经销商,还是罗氏维生素和新西兰FONTERRA牛初乳粉以及日本味之素阿斯巴甜等的华东一级代理商,全部产品都直接进口报关,在价格上是非常有优势的。

Sizing is clearly headed in the direction of neutral, and neutral divides in two directions: one is self-retention of neutral, such as the AKD, ASA cationtype Rosin, neutrase ployster and the other is a non-self-fixed neutral, such as the anion dispersed oil Rosin, anion, neutral polyester resin, and the latest research interest is the preparation, to meet the many self-retention and Rosin Sizing the performance of the Department of sizing agent, such as neutrase ployster, epoxidized Rosin, etc.

造纸施胶正朝着中性施胶方向迅猛发展,而中性施胶剂又分为两个方向,一是自身留着型中性施胶剂,如AKD、ASA、阳离子分散松香胶、中性聚酯,另一类是非自定型中性施胶剂,如阴离子中性分散松香、阴离子石油树脂、中性聚酯等,而最新型研究方向则是将二者统一起来,制备成兼具自身留着和松香系施胶性能的施胶剂,如中性聚酯,环氧化松香等。

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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。