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They are activated by an array of stimuli including collagen and other factors in the subendothelial space exposed by disintegrity of vasculature architecture as well as by thrombin generated by the enzymatic coagulation cascades.
体循环携有止血所需的关键酶和细胞成分,同样循环中流经脉管系统的血小板是血凝块形成的中心环节。
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Six experimental stages were designed in our procedure, those are:(1) metabolite recovery and tested sample preparation: the metabolites were recovered by Amberlite XAD-2 absorption, followed by MeOH elution and solvent concentration;(2) antioxidant detection and strain selection: samples were quantitatively analyzed by the inhibition effects on formation of lipid peroxides and TBARS to screen the strains able to produce antioxidants. According to the established screening methods, we chose out a strain of actinomycetes, designed as AMBL-029C;(3) antioxidant purification: the fermentation broth was recovered by a series of separation techniques including centrifugation, Amberlite XAD-2 absorption, followed by MeOH elution and a successive TLC purification. The resulting primary purified compound [temperately designed as AMBL-029C-TS] was further analyzed by HPLC to monitor its purity;(4) physical-chemical characteristics: judging from the acid-base fractionation experiments, and the pH and temperature stability tests, the compound was deduced to be a acidic compound with the properties of low polarity and highly pH and temperature stable;(5) mechanism of the antioxidant: in comparison with some other known antioxidants, TS was subjected to investigate its antioxidant mechanism, together with BHT,-tocopherol, as well as two streptomyces metabolites, homogentisic acid and -phenylpyruvic acid, which were previously isolated as the natural antioxidants in our laboratory.
针对本实验目的,我们设计了以下的实验步骤﹔(1)二次代谢物回收及检测样本处理:我们将发酵所得的培养上清液,利用疏水吸附性树酯Amberlite XAD-2吸附回收,并以甲醇溶离及真空减压浓缩脱水等方式处理,以取得提供抗氧化活性筛选之检测样本;(2)抗氧化活性检测及菌种筛选:以「过氧化脂质」和「硫丙二醯尿」的生成量进行定性定量分析以作为抗氧化物质生产菌筛选之用;经此筛选程序,我们选获了具有抗氧化物质高生产力的菌株,命名为AMBL-029C;(3)抗氧化物质的分离纯化:针对生产菌株的发酵回收处理液,以矽胶薄层色层分离法经物质层析纯化后,并以高效能液相层析法(High performance liquid chromatography;HPLC)分析物质可得一初级纯化物质,命名为AMBL-029C-TS;(4)抗氧化物质的物理化学性质分析:由酸碱转溶(acid-base fractionation)实验得知,此抗氧化物质属於中低极性的强酸性物质,对温度(37℃-100℃)及酸碱度(pH3.0-13.0)均表现出高稳定性;(5)在抗氧化机制探讨方面,我们针对数种不同的抗氧化机制进行探讨,即: 1。
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True believers may have the assurance of their salvation in various ways shaken, diminished, and intermitted; as, by negligence in preserving of it; by falling into some special sin, which wounds the conscience, and grieves the Spirit; by some sudden or vehement temptation; by God's withdrawing the light of his countenance, and suffering even such as fear him to walk in darkness, and to have no light: So 5:2,3,6 Ps 51:8,12,14 Eph 4:30,31 Ps 77:1-10 Mt 26:69-72 Ps 31:22 Ps 88:1-18 Isa 1:10 yet are they never utterly destitute of that seed of God, and life of faith, that love of Christ and the brethren, that sincerity of heart and conscience of duty, out of which, by the operation of the Spirit, this assurance may in due time be revived, 1Jo 3:9 Lu 22:32 Job 13:15 Ps 73:15 Ps 51:8,12 Isa 1:10 and by the which, in the mean time, they are supported from utter despair.
Mic 7:7,8,9 Jer 32:40 Isa 54:7-10 Ps 22:1 Ps 88:1-18 4 )真正的信徒可能保证他们的救恩,在以各种方式发生动摇,削弱和intermitted ;作为,疏忽,在维护它;由落入一些特殊的单,其中伤口的良知,并格雷乌斯精神;一些突发或强烈诱惑;上帝的撤回根据自己的国家进行,与苦难,甚至如怕他走在夜色中,并没有轻:那么5:2,3,6的PS 51:8,12,14弗4: 30,31常任77:1-10吨26:69-72聚苯乙烯31:22的PS 88:1-18伊萨1:10 ,但他们从来没有赤贫的种子神的,和生活的信心,而基督的爱和弟兄们,表示真诚的心灵和良知的税,其中,由行动的精神,这样的保证,可在适当时候恢复, 1jo 3时09卢22时32分就业13:15的PS聚苯乙烯73:15 51:8,12伊萨1:10 ,由其中,在平均时间,他们都支持从绝望。
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Hence too both Tragedy and Comedy are claimed by the Dorians as their discoveries; Comedy by the Megarians--by those in Greece as having arisen when Megara became a democracy, and by the Sicilian Megarians on the ground that the poet Epicharmus was of their country, and a good deal earlier than Chionides and Magnes; even Tragedy also is claimed by certain of the Peloponnesian Dorians.
因此多利安人宣称悲剧和喜剧都是他们的发明;喜剧由西西里的麦加拉人发明,理由是诗人厄皮卡玛斯是他们国家的人,这时希腊已经兴起,麦加拉建立了民主制度,这比奇奥里德斯和麦克赖斯要早很多;甚至一些伯罗奔里萨的多利安人声称悲剧也是他们的发明。
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According to the characteristic of silver nanoparticles, their uniform dispersion in reaction media was obtained by surface modification, ultrasonic radiation and the select of emulsion, and then emulsion polymerization system were formed by combination with reactive monomer and initiator. Nano-Ag/Polystyrene core-shell particles were prepared by emulsion polymerization and their microstructure were characterized by TEM, FTIR, XPS, AFM and TG/DTA. The experimental results showed that silver nanoparticles were coated by polymer and the composite particles had typical core/shell structure, and the microlevel combination was realized. Meantime, the form mechanism of nano-Ag/polystyrene core-shell particles was tentatively researched. The conclusion is that the perfect coating was able to obtained by the control of reaction condition.
根据纳米银粒子的特性,借助于表面处理、超声辐照以及乳化剂的选择,使其均匀分散在反应介质中,再与反应单体、引发剂等形成乳液聚合体系;采用乳液聚合方法、包裹聚合方式,制备出纳米银/聚苯乙烯核壳复合粒子,并借助于TEM、FTIR、 XPS、AFM、TG/DTA等分析手段对复合粒子微观结构进行了表征;结果表明:纳米银粒子表面被聚合物层包覆,复合粒子呈明显的核壳结构,实现了微观尺度上的复合;同时,初步探讨了纳米银/聚苯乙烯核壳复合粒子的形成机理,指出:通过控制反应条件,可以使形成纳米银/聚苯乙烯核壳复合粒子的聚合反应方式占主导地位,实现最大限度地包覆。
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The author studied foreign sports insurance system modes and their inspi-ration to China, and revealed the following findings: different countries have different sports insurance system modes: 1 sports insurance system mode governed and participated by the government; 2 civil sports insurance system mode supported by the government; 3 commercial sports insurance system mode sponsored by the govern-ment; 4 sports insurance system mode selectively supported by the government; 5 sports insurance system mode monopolistically run by the government.
对国外体育保险制度模式及其对我国的启示进行了研究。研究表明,各个国家有不同的体育保险制度模式:(1)政府主导参与型体育保险制度模式;(2)政府支持下的民间体育保险制度模式;(3)政府资助的商业性体育保险制度模式;(4)政府重点选择性扶持型体育制度模式;(5)政府垄断经营体育保险制度模式。
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Methods After the wide type NCI-H446 cells and the three kinds of NCI-H446 cells transfected by three kinds of IL-15 genes respectively (Cmp transfected by the IL-15 maturation peptide gene, Cp transfected by prototypic IL-15 gene, and Csp transfected by modified IL-15 gene whose signal peptide was replaced with the IL-2 signal peptide) were treated by mitomycin, the cells (named MCw, MCmp, MCp, and MCsp, respectively) were used as stimulator cells to stimulate PBMC from healthy volunteers.
野生型NCI-H446细胞和被3种IL-15基因分别转染的3种NCI-H446细胞(Cmp:被IL-15成熟肽基因转染;Cp:被原型IL-15基因转染;Csp:被信号肽换为IL-2信号肽的改型IL-15基因转染),用丝裂霉素处理后(分别名为MCw、MCmp、MCp和MCsp)作为刺激细胞刺激健康志愿者的PBMC。
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The mian works are as follows:(1)By coprecipitation technique and coprecipitation- gel technique the nano zirconia powder was produced, factors affecting the properties of nano zirconia powder such as pH and the content of stabilizator are analyzed;(2)By the new pressless sintering process, the nano zirconia ceramic was produced, factors which can affecting the properties of nano zirconia sinter body such as moulding press and the sinter temperature are analyzed;(3)By the microtherm pressless sintering process, the nano copper added functional zirconia ceramic composite was produced, microscopic dimensionality and electric properties of such sinter body and the factors affecting such sinter body are analyzed;(4)By the self-invented "external albumen coating" technique the zirconia powder was successfully coated by carbon in the corresponding sinter body, which can help solve the traditional aggregation problem to some degree;(5)Based on analyze the characteristics in the nano powder sinter process, the "three-ball sinter model" was proposed, for the relationship between the relative density and porosity of sinter body, by mathematical fitting, such model was successfully verified.
本研究比较系统地研究了纳米氧化锆陶瓷的合成与成型机理,特别是讨论了纳米氧化锆陶瓷的稳定性,为防止纳米颗粒在外场作用下的团聚和长大提供了理论基础和实验数据,具体工作有以下几方面:(1)采用共沉淀法和共沉淀-凝胶法制备了纳米氧化锆粉体,并分析了pH值和稳定剂含量对粉体性能的影响;(2)采用新型无压烧结工艺制备了纳米氧化锆陶瓷,并分析了成型压力和烧结温度对烧结体性能的影响;(3)采用低温无压烧结工艺制备出添加纳米铜的功能性纳米氧化锆复合陶瓷,并分析了烧结体的微观尺度和电学性能的变化以及影响因素;(4)通过自创的&鸡蛋清外敷法&在真空镀膜台上对纳米氧化锆粉体进行包敷碳颗粒的表面处理,并采用真空烧结工艺制得相应烧结体,初步开始解决陶瓷烧结过程中团聚长大这一传统难题;(5)通过分析纳米颗粒在制备烧结体过程中的实际特点,提出了&三球烧结数学模型&,通过引入坯体相对密度和孔隙率的相对关系分析并通过自行编写的数学拟合软件,验证了这一数学模型。
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The sizes of the self-assembly micelles of the amphiphilic block copolymers and the effects werestudied by dynamic light scattering and UV-visible spectrophotometer. The micelle sizes werelargely influenced bythe hydrophobic chain content in the copolymer, the properties of the solvent and the copolymer concentration in the organic phase. The morphology of the micelles was investigated by transmission electron microscopy. Theresults showed that the micelles appeared spheres with inner core and outer shell. The critical association concentrations were determined by pyrene monomer fluorescence probe technology. The degradability of copolymer was studied by the loss of the intrinsic viscosity in the degradation process. The results indicated that the degradation rate of PECL was slower thanthat of PELLA and PEDLLA. The stability of the copolymer micelle dispersion was examined by measuring the critical flocculation concentration, which gradually decreased with increasing the content of thehydrophobic chain in the copolymer. The rheological results showed thatthe viscosity ofthe micelle dispersion with higher content of PEG segments was firstly decreased and then increased with the increasingthe temperature. Otherwise, the variation of viscosity was irregular. The viscosity of the micelle dispersion increased with the increase of the electrolyte (Na 2SO 4) concentrations. Polymer micelles paclitaxel was prepared by self-emulsification/solvent evaporation method and solid dispersion technique with amphiphilic block polymers as the carrier material.
运用动态光散射和紫外分光光度计研究了两亲性嵌段共聚物自组装胶束的粒径及其影响因素,结果表明,自组装胶束的形成机理受制备方式的控制,胶束的粒径随着共聚物相对分子质量或疏水嵌段相对分子质量和有机相中共聚物浓度的增大而增大,随着有机溶剂的水溶性的增强而减小;采用透射电镜观察胶束的形态结构,发现胶束呈具有核壳结构的均匀球形;采用芘荧光探针法测两亲性嵌段共聚物的临界聚集浓度;通过降解过程中共聚物特性粘度的变化研究两亲性共聚物的降解性能,发现与PELLA和PEDLLA的相比,PECL 降解速率较慢;随着共聚物中疏水嵌段含量的增大,纳米分散液的稳定性逐渐下降;PEG含量高的PEDLLA纳米分散液随着温度的升高,纳米分散液的粘度先下降然后增大,反之,没有规律性,且随着电解质Na 2SO 4浓度的增大,体系粘度增大。
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For preparing for the researches of text digital watermarking and advantaging other researchers" development when using the Chinese mathematical expression theory, this paper designs and realizes a development platform of Chinese mathematical expression. It has been proved by experiments that the platform"s function, execution speed and stability can satisfy the requirements of conversion and operation of enormous data.This research found out that the structure information of Chinese have plenty redundant information that can be used by the Chinese mathematical expression for the digital watermarking, the data embedded can possess better robustness. Based on this finding, this paper designs a kind of text digital watermarking method of embedding watermarking by using Chinese structure, and realizes the method by using the Chinese mathematical expression platform.Considering the watermarking embedding algorithms importance to the robustness of the text digital watermarking, this paper makes fully use of the advantage of the Chinese mathematical expression theory to design a kind of layered text method, which has being realized by using the Chinese mathematical expression platform. The layered text method can handle the text as a solid structure, and the embedding data havepreferable robustness.Finally, based on the researches of the text digital watermarking method and the text layered method, this paper integrates the method of making use of the Chinese structure embedding watermarking with the robust algorithm based on text layered, and realizes a brand-new text digital watermarking method. Proved by lots of experiments, this brand-new method has good robustness and better invisibility.
为了为研究工作做准备和方便其他使用汉字数学表达式理论体系的人进行开发,本文基于汉字数学表达式理论设计实现了一个汉字数学表达式平台,实现了Unicode汉字集中的汉字、汉字数学表达式、汉字的Unicode码之间的相互转化、依据汉字数学表达式提取汉字的结构信息、由汉字数学表达式在非中文平台上不依赖字库显示汉字的图像等功能,使用复合文档技术和流压缩技术进行数据的存储,使用对汉字数学表达式进行二叉树拆分来处理汉字数学表达式中包含的信息,使用自定义哈希函数来提高运行速度,实验证明,该平台功能、速度和稳定性完全能满足大量数据的转化和运算要求;通过研究表明汉字的结构信息中存在大量可使用汉字数学表达式理论加以利用的水印加载空间,加载在该空间的数据可以具有较好的鲁棒性,基于此,本文设计了一种利用汉字结构加载水印的文本数字水印方法,并使用汉字数学表达式平台将其实现;由于水印嵌入算法对于文本数字水印的鲁棒性至关重要,本文充分利用汉字数学表达式理论的优点,设计了一种文本分层的方法,并使用汉字数学表达式平台将其实现,使文本成为一个立体的空间,使嵌入在其中的数据具有更好的鲁棒性;最后在基于汉字数学表达式的文本数字水印嵌入方法的研究和基于汉字数学表达式的文本分层方法的研究的基础上,结合利用汉字结构嵌入水印的方法和基于文本分层的抗攻击文本水印嵌入算法实现了一种全新的文本数字水印方法,经实验证明,该方法有良好的鲁棒性和较好的隐蔽性。
- 相关中文对照歌词
- The Hunter Gets Captured By The Game
- By The Light Of The Silvery Moon
- Flowers By The Side Of The Road
- The Train Runs Over The Camel But Is Derailed By The Gnat
- If You Live By The Sword, You Die By The Sword
- Down By The Side Of The Road
- Got The Bull By The Horns
- The Hunter Gets Captured By The Game
- In The Evening By The Moonlight
- A Woman A Man Walked By / The Crow Knows Where All The Little Children Go
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。