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The metabolic characters of production phase in the fermentation of unde-cane dicarboxylic acid were analyzed.

分析了十三碳二元酸发酵过程中产酸期的代谢特点,对产酸期四相体系发酵动力学进行了研究。

The removal efficiency of dichloroacetic acid from drinking water using the advanced oxidation technology UV/H2O2 and the influencing factors were investigated in batch reactors,and the relevant dynamic analysis was carried out.

采用间歇式反应器考察了UV—H2O2高级氧化技术去除饮用水中二氯乙酸的效果及其影响因素,并进行了相关的动力学分析。

The UV and IR spectroscopic studies of the monomer films showed that the photoreaction ratio of monomer (about 50%) was higher than the corresponding photosensitive polymer (about 10%, PVCi). The polarized IR spectra proved that obvious anisotropic absorption was displayed in the irradiated photosensitive film. With polarizing microscopy method, we found that these kinds of photoalignment films exhibited good alignment ability, and the stability of the photoalignment film could reach about 100℃. 2 A photosensitive self-assembled monolayer was fabricated that contained photo-cycloadditable groups, such as, coumarin and cinnamate. The reaction process were detected by contact angle method because the IR absorption of monolayer was very weak. The photosensitive self-assembled monolayer promote uniform alignment of nematic liquid crystals by LPUV, and it thermal stability could reach about 130℃. 3 A cationic bolaform amphiphiles was synthesized that had two photosensitive double bonds, and can be polymerized by ultraviolet. A layer-by-layer self-assembled deposition film was prepared in aqueous solution by using this material and poly (sodium 4-styrenesulfonate). The UV-Vis. spectra proved that the multilayers film was uniform and layer-by-layer. When LPUV irradiated the film, the photopolymerizable double bond underwent [2+2] cycloaddition, and the production of the reaction distributed along the polarized direction of incident LPUV. Polarized UV-Vis. spectra indicated that the irradiated self-assembled multiplayer film was anisotropic, and the dichromic ration is about 0.09, it is higher than the spin-coating method of photosensitive polymer or monomer. We used this anisotropic film as alignment layer of nematic liquid crystals, and obtained a uniform and stability alignment result, the static contrast ratio is about 100, which is very close to application of liquid crystal device. This thesis is an instance that the photochemical material was used in the physics region of liquid crystals, the route that was from photosensitive monomer, self-assembled monolayer film to self-assembled multiplayer film was undergone, by this logical research method photoailgnment of liquid crystal was extended and consummated.

围绕上述思路开展了如下工作:1合成了三种可进行光二聚反应的光敏小分子单体,LPUV 辐照制作了光控取向膜;用紫外-可见光谱法和红外光谱法分析了薄膜中的光化学反应,发现小分子的光反应程度可达到50%以上,至少比光敏高分子高出5倍;薄膜的偏振红外光谱证实,经过LPUV 辐照后薄膜出现了明显的各向异性;将小分子光控取向膜制成液晶器件,在偏光显微镜下观察看到均匀一致的液晶取向;并且热稳定性达到100℃左右,接近实用化要求。2制备了含肉桂酸、香豆素基团的自组装单层膜;采用接触角的方法监测自组装反应的动力学过程;紫外-可见光谱证实了自组装单层膜在石英基板表面形成;自组装单层膜经LPUV 辐照后能诱导液晶均匀取向,而且热稳定性可达130℃,热稳定性进一步提高。3合成了含有光敏双键的双季铵盐,在水溶液状态下将它和聚乙烯基苯磺酸钠沉积生成layer-by-layer 自组装多层膜,紫外-可见光谱证实这是一个逐层均匀的沉积;在LPUV 照射下,自组装膜中的光敏双键按照偏振方向发生[2+2]环加成反应,形成取向膜,用二向色性值评价的分子取向度高于高分子及小分子光控取向膜的水平;实验证明用自组装多层膜制成的液晶器件亮暗态均匀,静态对比度约为100,达到实用化器件的水平。

The effect of Stress applied at certain temperature on low temperature phase transformation of T91 was studied with Baehr DIL805A/D high-resolution differential dilatometer. According to the results of dilatometric measurement and microstructure observation, kinetics of phase transformation was obtained.

采用Baehr DIL805A/D高精度差分膨胀仪测量线膨胀行为与微观组织分析获取了T91铁素体耐热钢低温相变过程动力学信息,研究不同温度(760、650和440℃)下施加不同压应力(100、150和200 MPa)对低温相变过程的影响。

The critical cooling rates in undercooled austenite transformation process of T91 ferritic heat-resistant steel were studied by DIL805A/D high-resolution differential dilatometer. According to the dilatometric measurements, phase transformation kinetic information was obtained with the aid of the analysis of the lever rule from the recorded dilatometric curves.

利用DIL805A/D高精度差分膨胀仪,通过线膨胀行为测量与微观组织分析,获得T91铁素体耐热钢连续冷却转变过程中相关动力学信息,结合冷却后T9l钢组织特征,确定了T91钢过冷奥氏体转变过程中的临界冷却速度。

The decomposition of EAK( Ethylenediamine Dinitrate Ammonium Nitrate Potassium Nitrate) eutectic intermolecular explosive was investigated by means of DSC.

通过DS C分析研究了EA K(乙二胺二硝酸盐硝酸铵硝酸钾)低共熔物分子间炸药的热分解特性,测定了EAK 的分解动力学参数。

The thesis toke problem of deformation and destroying of the earth mass as it's invention, integrated the earth mass's existing environment, ingredients and macrostructure, discovered mechanism of deforming and destroying, made clear the relationships between those.Through outdoors samples, indoors examination surface wave testing and audio wave testing ,do some research on physical, mechanical, chemical, disintegrative and dynamics property of stuff of earth mass and proposed four kinds of earth mass's stuff formed type;under the guidance of theory of dominant structural surface and adopting precision measurement of structural surface, proposed three dominant kinds of structural surface assembling;based on those , proposed four types of earth mass's deformation and destroying, carried out rationed estimation of stability on four types, then definite the characters of deforming and destroying and controlled relation between environment , stuff, macrostructure and deformation and destroying of mass earth, and breakthrough ordinary principle about soil's deformation and destroying, further proofed the theory of earth mass cybernetics's popularization

本学位论文针对台地危险土体的变形破坏问题,将土体的赋存环境、土体物质组成和土体宏观结构的研究紧密地结合,阐明了土体变形破坏的机制,明晰了土体变形破坏与土体的赋存环境、土体材料组成、土体宏观结构三要素之间的关系,并从土体的物质组成的角度,以野外取样、室内实验、现场面波、声波无损伤测试为手段,研究了土体物质的物理、力学、化学、矿物、崩解性、动力学性质,提出了研究区内土体物质成分的四种组合形式;以优势结构面理论为指导,以结构面的精确测绘为手段,通过统计、归纳与分析,提出三种有利于台地危险土体变形破坏的优势组合形式;据此提出了具有广泛代表意义的台地危险土体变形破坏的四种模式,并对其进行稳定性评价,从而明确了危险土体的宏观结构对变形破坏的控制作用,映证了土体结构控制论。

Based on tests and theoretical analysis,the dynamic mechanical model of dissipater is established,and a parameters separated identification method is presented to identify the.

在此基础上,结合理论分析建立耗能器的动力学模型,提出一种参数分离识别法,辨识出模型中的未知参数。

Base on the meaning about the agric resources optimize allocation of the complex system, the agric resources optimize allocation model was built by Non-linear dynamitic theory.

在分析复杂农业系统资源优化配置的含义的基础上,利用非线性动力学模型建立复杂农业系统资源优化模型

These nonlinear chaos dynamitic models forecast oil consumption quantity of China. In this dissertation, it has mainly studied the fractural dimension measure to petroleum economics system, the phase space reconstruction modeling and prediction techniquesto economic chaotic time series. It puts forward chaos dynamitic models, which are forecasting model for oil consumption. Corresponding countermeasures of the oil supply-security of China are suggested by analyzing the forecasting results and the problems existing in petroleum economic system of China, especially aiming at the balance between oil production and consumption quantity.

本论文主要研究了石油经济系统复杂性的分数维度量、经济混沌时间序列的相空间重构技术、建模和预测技术;建立了石油经济系统的混沌动力学模型:石油消费的预测模型;并将此模型应用于全国的石油经济系统研究之中,对全国石油消费量做出预测,根据预测结果分析我国石油经济系统中存在的问题,并提出对策。

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推荐网络例句

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。