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The high pressure effects on the structure properties of glycinin and β-conglycinin are analyzed and the mechanism of high pressure denaturation protein is clarified; By simulating the real food systems, high pressure effects on the interaction of protein and polysaccharide are studied; The relationship between the change of protein structure and function are studied in the presence of polysaccharide.
研究超高压处理对大豆豆球蛋白和β—伴球蛋白分子结构特性的影响,了解超高压促使蛋白质变性的机理;模拟食品真实体系,研究超高压对蛋白质及多糖相互作用的影响;分析在多糖存在的条件下,超高压处理对蛋白质分子结构变化及功能特性的影响。
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Degradation test in vitro was carried out in phosphate buffer solution (0.1M, pH7. 4) at 37 ℃. The buffer solution was changed daily. Degradation test in vivo was implanted the sample to subdermal in adult ICH rat in the scapular area lateral to the dorsal midline. At suitable time the samples were recovered. Molecular weight changes in surface layer and bulk of polymer sample were measured by GPC and weight loss was determined gravimetrically. It was found that the degradation behavior can be regulated by changing the composition of copolymers. The critical compositions from surface to bulk degradation behavior for PGCA, PLCA, PLMCA, PLDCA systems were 15-20, 20-30, 30- 40, 40 of mol percent GA or LA unit in copolymers, respectively. The degradation behavior of PGCA, PLCA, PLMCA, PLDCA systems were compared and analysed. Some factors influencing the degradation character, such as copolymer composition, hydrophobicity, crystallinity and enzyme affect etc. played important role.
体外实验中材料降解环境为37℃,0.1M,pH7.4磷酸缓冲溶液,每天换液,定期取样;体内实验中将聚合物试样埋置于ICH小白鼠背部肩胛骨皮下部位,定期处死小鼠,取样,将体内体外样品进行重量损失及试样内外层分子量变化测定,分析各聚合物试样降解行为特性,实验结果证明,改变共聚物组成,可以调节各聚合体系降解行为特性,对PGCA,PLCA,PLMCA,PLDCA共聚体系,交酯摩尔百分含量15-20%,20-30%,30-40%,40%分别为各体系内降解行为特性由表面降解型向本体降解型过渡的临界转折点,交酯含量较低的聚合物不同程度地表现表面降解行为特性,论文对各共聚体系体内外降解行为作了分析对照,例如共聚物组成对材料降解速度与降解行为的影响;生物体内酶对降解行为的影响;材料亲疏水性,聚合物链段结晶行为及碳酸酯结构对材料降解行为的影响等,得出交酯/环碳酸酯共聚体系降解行为一些共性和规律。
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The synthesized PCU was then characterized by infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, small-angle X-ray scattering, and tensile strength measurement. The IR showed that the polymer synthesized by the above two methods both have the polycarbonate-urethane structure and the tensile measurement showed good mechanical performance of the polymer. The DSC and TGA data showed that there is an obvious soft-hard glass transition area, which indicated the existence of the micro-phase separation structure. The extent of the phase separation was affected by the ratio of starting materials, the molecular weight of PCD, and the polymerization method. The decomposition upon heating was observed in two steps. SAXS result showed that the radius (r_2), the distance between domains (d_2), and gyral radius (R_2) of hard segment micro-domain were fairly affected by the starting materials ratio and soft segment content.
IR结果表明两种方法合成的聚合产物均具有聚碳酸酯聚氨酯的结构;拉伸实验表明聚合产物具有良好的力学性能;DSC、TG结果表明,聚合物呈现出较为明显的软硬段玻璃化转变区,表明存在微相分离的结构,相分离的程度受原料配比、软段分子量、聚合方法的影响,其热分解分为明显的两个阶段; SAXS结果表明,聚合物原料配比、软段含量的变化对硬段微区回旋半径R_2,微区间距d_2,微区半径r_2影响不大其值分别为9.5(A|°、29、7.4,但对软段的微区半径及间距影响较大,随着软段含量的增大,软段微区的半径r1和间距d1都增大。
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There were a certain relationship between haemoconcentration and tess score(p.05),tess score influence male sexual function.conclusion:within a certain chloropromazine &clozapine haemoconcentration,higher haemoconcentration,higher impairment to sexual function,there were significant relationship between haemoconcentration and sexual function;also severely side effect with the haemoconcentration higher,there were a certain relationship between haemoconcentration and side effect,side effect also influence male sexual function.
药物血浓度与tess评分呈现一定相关性(p.05),对性功能产生影响(p.05)。结论:氯丙嗪、氯氮平的药物在一定范围内血浓度越高,对男性性功能影响越大,呈现显著正相关;而药物的副反应随血药浓度递增而增大,显现出一定的正相关性,对性功能产生一定影响。
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Using cytochalasin D to prevent global actin from forming filamentous structures, the production of Heliothis armigera nuclear polyhedrosis virus in Hz-AM1 cells grown in the medium containing 0.5μg/ml CD was completely inhibited while its production was reduced to 10〓 in the presence of 0.1μg/ml CD by plaque assay. However, Western blotting revealed that the actin quantity in infected host cells treated or untreated with CD was almost identical. Additionally, CD had no effect on the DNA synthesis of HaNPV.
Western blot表明细胞松弛素D并不影响受染细胞中肌动蛋白的含量,Dot blot表明病毒DNA的合成也没有受到影响,但电子显微镜超薄切片发现在0.5ug/mL细胞松弛素D中形成的病毒粒子形态与正常的有明显区别,认为细胞松弛素D抑制棉铃虫核型多角体病毒的增殖是因为抑制病毒的DNA和蛋白组装成完整有感染性的病毒粒子,即丝状肌动蛋白对病毒粒子的脱壳和DNA的复制、转录没有影响,但对病毒粒子的组装是必须的。
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In this program, the declining segment of the stress-strain relation of the concrete, the restriction effect of hooped reinforcement and the bond-slip problem of the reinforcement are considered, as the same time the optimized arithmetic is applied to accelerate calculation procedure. Though the appropriate experiment arrangement, the influential factor such as the strength of concrete, the ratio of hooped reinforcement, the ratio of axial compression and the loading angle are researched, some available rules of carrying ability and ductility of the special-shaped column can be attained.
程序中考虑了混凝土应力应变曲线的下降段及箍筋对混凝土的约束影响,采用了合适的算法加速计算过程并考虑了纵筋锚固滑移的影响,通过正交试验分析了混凝土强度、体积配箍率、轴压比和荷载角对异形柱截面抗弯承载能力及截面曲率延性比的影响。
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The NT increase the Gliadin, Globulincontent and decrease the Glutenin, Albumin contents compared with CT.1.3 In NT, 7 days after anthesis and in the sequel, flag leaf NR activityshows higher, photosynthetic ration and transpiration ratio 16 days after 5anthesis and in the sequel higher and have longer continuance ability thanthose in CT.1.4 In NT, total nitrogen contents in crop and fertilizer utilization efficiencyare lower than those in CT.2 The ecology characteristics of wheat field of NT2.1 The contents of hydrolyzable nitrogen,available phosphorus andpotassium in 0-20cm soil layer are all higher in NT fertilization zone thanthose in CT, While the differentiations are in different levels.
肥料利用率免耕各处理均显著低于常规处理。1.5 和常规耕翻处理相比,免耕处理玉米秸秆腐解率无显著差异。冬前是秸秆腐解的主要时期。小麦生育后期肥料对秸秆腐解的促进作用显著,肥料用量与秸秆腐解率存在显著相关性。2 免耕对土壤理化性状的影响2.1 在成熟期免耕施肥区,和常规耕翻处理相比,免耕处理 N3T 对0-40cm 土层碱解氮含量影响不显著。免耕处理 N3T 显著提高了 0-20cm 土层土壤速效磷和速效钾含量,对 20cm 以下土层速效磷和速效钾含量无显著影响。
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The temperature and pH value were two important factors for hydrolyzation ofγ-PGA, not only affected the hydrolyzation velocity, but also affected the ultimate hydrolyzation degree.
温度和pH值是影响聚谷氨酸降解的两个重要因素,不仅影响聚谷氨酸的降解速度,也影响聚谷氨酸的降解程度。
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We find that the youth dependency ratio has a weak and small significant impact on the household consumption, which is differenct from Life-Cycle Hyperthesis and existing literature's findings; while the old dependency ratio does not have a significant impact on household consumption.
我们发现,与生命周期假说的预言和现有文献结论不同,中国儿童抚养系数对居民消费具有负的影响,并且这种影响在数量上并不大;中国老年抚养系数变化对居民消费的影响并不显著。
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In the photoproducts with predominant quinoidal structure, abathochromic shift of absorption spectra is observed with increasing solvent polarity; inthose with predominant zwitterionic structure, a hypsochromic shift does so.
然而,所有这些取代基对光致变色反应的影响要较2〓位取代基的效应小得多。四。溶剂极性对光开环产物的吸收光谱和寿命的影响也被讨论了。这种影响效应的情况可概括如下: 1。
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。