四对的
- 与 四对的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The charomatographic conditions of separation and direct dermination of benzophenone-4(MS40), salizyle acid sodium, salol, benzophenone-3(M40), octyl dimethyl PABA(6007), butyl methoxy dibenzoyl methane(1789), octyl methoxyl cinnamate and octyl salicylate(587) from u-Bondapak C18 Column were studied with methanol-water-THF as elution. A HPLC method for these compounds was founded.
研究了用甲醇-四氢呋喃-水作为流动相,从C18柱上分离和测定羟苯甲酮-5-磺酸(MS40)、水杨酸钠、水杨酸苯酯、羟苯甲酮(M40)、对-二甲酸氨基苯甲酸-2-乙基己酯(6007)、4-叔丁基-4-甲氧基二苯甲酸甲烷(1789)、对-甲氧基肉桂酸-2-乙基己酯、水氧酸-2-乙基己酯(587)等8种紫外线吸收剂的色谱条件,建立了用HPLC测定上述物质的方法。
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The thesis consists of six chapters. In the first, the technologies of atomic force microscopy and of the measurement elasticity of biomolecules were introduced. In the second, the validity of VSPFM was confirmed by lift mode atomic force microscopy. In this chapter, the height of DNA was measured by lift mode atomic force microscopy, which demonstrated that the method of height measurement of biomolecules by VSPFM was correct and established the foundation of the method of measurement elasticity of biomolecules by vibrating mode scanning polarization force microscopy. In the third chapter, detailed work has been illustrated on the foundation of the method of measurement elasticity of biomolecules by VSPFM. And the compressive elasticity of DNA was measured. In fourth and fifth chapters, the method was applied in the measurement elasticity of proteins. Two proteins elasticity, fibre-like protein α-synuclein and global protein IgG, were measured by VSPFM, through which the method wound its way to the application of biomolecules. In last chapter, the final part of the thesis was a summary. A conclusion of the thesis and a self-comment on my work as a PhD candidate have been made, and expectation about the further works has been addressed.
本论文共分为六章,第一章,引言部分主要介绍了原子力显微镜技术及生物大分子弹性测量技术;第二章主要是VSPFM方法的正确性论证,介绍抬高模式原理,利用抬高模式原子力显微镜对DNA的高度进行测量,论证振动模式扫描极化力显微镜测量生物大分子的高度的正确性以及准确性,从而为振动模式扫描极化力显微镜测量生物大分子的弹性方法的建立奠定基础;第三章以脱氧核糖核酸为例详细介绍了振动模式极化力显微镜测量生物大分子弹性的方法的建立,对DNA的压弹性进行了初步的测量和分析;第四章和第五章介绍了振动模式扫描极化力显微镜在蛋白质弹性测量中的应用:α-synuclein和IgG分别是纤维状蛋白和球状颗粒蛋白,通过振动模式扫描极化力显微镜测量这两种蛋白质的弹性,摸索振动模式扫描极化力显微镜在蛋白质弹性测量中的应用;第六章对全文进行了总结,在对论文的工作进行归纳和自我评价之后,还对进一步的工作进行了展望。
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Based on the management principle and objective of Jiangsu SNWDP, the thesis establishes its management framework and designs three management patterns and four modes. Through analyzing the anticipative management effect, scopes in point, advantages and disadvantages of each modes seriatim, the thesis confirms the recommended pattern. It makes framework refinement design, defines rights and duties of control level, execution level and participation level for the recommended pattern. According to the principles of planned water use, metered water use, contract water use, toll water use, it studies project operation for recommended pattern from four aspects, namely water supply plan, measure intensified, water supply contract, and water rate enacted. The thesis analyses and studies how to ensure water supply quality of Jiangsu SNWDP from three levels, including doing watershed protection, intensifying intermediate process, and establishing a long-term mechanism. It makes brief design for dispatching management applied system, studies emphases parts which may affect operation of the pattern in practice, also analyses dispatching optimization of Provincial boundary project management, pumping station management, and different water resources. Finally, the thesis studies relevant basal supports and development stratagems for the management of Jiangsu SNWDP.
本文从分析南水北调江苏境内工程的管理原则、管理目标入手,构建南水北调东线江苏境内工程管理组织框架,设计了管理的三种模式,四个方案,对各种方案的预期管理效果、方案的适用范围、方案的利弊逐一分析,经比选后确定推荐模式;并对推荐模式进行结构细化设计,界定调控层次、执行层次、参与层次的权责;从供水计划、加强计量、供水合同、水价制定方面对推荐模式进行了工程运营的具体研究;从做好源头保护、强化中间过程、建立长效机制三个层次,分析研究如何确保南水北调江苏境内供水水质;对调度管理应用系统作了简要设计;针对实际管理中可能影响整个模式运行的重点细部:省界工程管理、泵站工程管理、不同水资源的优化调度等进行了研究;本论文还分析研究了南水北调江苏境内工程管理的相关基础支撑和发展战略。
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Digested and assimilated part of equipment and technology introduced by cold rolling sheet plant of Benxi iron and steel company and analyzed eccentricity compensation. Structure model of the whole hydraulic gap control system was established.
消化和吸收了本钢冷轧厂引进的1676mm四辊冷连轧机的部分关键技术,对整个液压辊缝控制系统建立了结构模型并主要对偏心补偿进行了分析。
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Objective To investigate clinical significance of color Doppler echocardiographic diagnosis in prenatal diagnosis of fetal congenital heart disease.Methods 520fetuses in24~40weeks were examined by color Doppler echocardiography on four-chamber views and subcostal views to determine CHD.
目的 探讨彩色普勒超声心动图对胎儿先天性心脏病产诊断的临床意义方法使用彩色多普勒超声诊断仪随机对520例胎龄24~40周的胎儿,在心脏超声四腔观基础上结合多切面观察胎儿心内结构,以确定胎儿有无先心病。
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In this paper, the effects of processing and heat treatment of terephthalate/polyte-traoxymethylene block copolymer on their dynamic mechanical temperature spectra were studied.
本文首先研究了成型方法和热处理对聚对苯二甲酸乙二酯与聚氧四亚甲基嵌段共聚物动态力学温度谱的影响,结合应力-应变曲线讨论了微相分离与力学性能的关系。
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Monosomic 3, monosomic 5, monosomic 10, trisomic 4 and trisomic 5 as experiment materials, their meiosis behavior of pollen mother cell, pollen characteristics, physiological and biochemical characteristics of anther, section observation of pollen development and the structure of embryo sac were studied, and the effects on the seed set and transmission rate were analyzed.
本文以大白菜同源四倍体小孢子培养产生的且已鉴定为3号单体、5号单体、10号单体、4号初级三体、5号初级三体的非整倍体株系及二倍体株系等为试材,对各材料的结籽率、雄配子传递率进行了统计,并对花粉母细胞减数分裂行为、花粉特性、花粉发育和胚囊结构以及花药生理生化特性等方面进行了观察研究,进而分析了其对大白菜单体n-1雄配子和三体n+1雄配子传递率的影响。
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In this paper, the natural characteristics of TSS will be analyzed firstly, and then the peculiarity of its frequency and vibration will be summarized.
本文第四章首先对张弦桁架结构的自振特性进行了分析,对其自振频率和振型的特点进行了总结。
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The main design is CW6163-general of the turret lathe NC transformation, the main design of the four-position electric turret vertical structure of the mechanical design.
本次设计主要是对CW6163型普通车床的刀架进行数控化改造,设计中主要对四工位立式电动刀架的机械结构进行设计。
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Stressing on "fine reputation","quality","service","credit","practice", not only the grandeur.④Encouraging the innovation, not the unearthliness, playing down the effect of entertainment stars or idols, decreasing the fashion index.⑤"personality" is not the "self central". Social sense of responsibility and interpersonal "feeling of affinity" are both intensified.3.1.2 Factor analysis, revealing 19 value element vectors, which include "comfort","personality","simple","fine reputation","responsibility","service","price","wisdom","distinction","enthusiasm","stimulation","taste","sex difference","quality","vigor","idol","fashion","affinity","aesthetic" and so on. Four orientation diagrams coordinated with the average factors and the standard deviations of these 19 value elements, described the multi directional value orientation structure for China college students' sportswear consumption.3.1.3 Clustering analysis are applied to classify the former 19 value elements, which discovered that three inferior group are classified from the college students' consumption group based on the whole specimen data. It could be the reference of enterprise brand building for the orientation of consumption values.3.2 General personal values, self conception and demographic are lead into as three major variables for the interrelationship analysis of sportswear consumption value system.3.2.1 Firstly, the college students having their general values and existing the inferior group feature regarding to the consumption values.
三、研究的主要成果及其意义对中国大学生休闲服消费价值体系进行探索性分析1、首先对中国大学生休闲服消费价值观量化问卷所调查的样本数据进行频数统计趋向性分析,发现呈现的主要特点有:(1)"个性化"和"简约"已成为潮流,而寻"刺激"、找"激情"总体收敛;(2)追求"美感",更不放弃"舒适",两者兼得才是完美;(3)重"美誉"、讲"质量",重"服务"、讲"信用",求实际、不求高贵,"明智"有素;(4)求新不求怪异,明星、偶像效应淡化、时尚指数不高;(5)"个性化"不是"唯我化",社会责任感和人际"亲和力"在强化。2、其次对样本数据进行因子分析,揭示出以"舒适"、"个性"、"简约"、"美誉"、"责任"、"服务"、"价格"、"明智"、"独特"、"激情"、"刺激"、"品位"、"性差"、"质量"、"活力"、"偶像"、"时尚"、"亲和"和"美感"等十九个价值元素为矢量的休闲服消费价值体系,并以因子均值和标准差为参数勾画出19个价值元素坐标四方位图,从总体上描述了中国大学生休闲服消费多维的价值取向结构。3、再者进行聚类分析,对上述十九个休闲服消费价值元素作不同量值的分类,发现在样本总量中可以细分为有较大区分度的三个类别,呈现出大学生消费群体中存在休闲服消费价值体系不同的亚群体,可为以消费价值观为取向的企业品牌价值定位提供参考基谱。
- 推荐网络例句
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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
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The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。