微观的
- 与 微观的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Data Structure Design and Actualization of GIS-based Micr-Simulation System of Road Network.
基于GIS的微观仿真路网数据结构设计和实现。
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Based on electro-characteristic and double electric layers models, directional mechanisms of soy protein molecular are analyzed for the first time on DC heating condition. After the main factors which effect soy protein gels transparency and strength being studied on DC heating condition, the different affects on soy protein gels transparency and strength by DC heating and water bath heating are analyzed and compared, and the transparent mechanisms of soy protein gels are further explored. In addition to temperature action as water bath heating, DC heating is added as electric field directional action. As a results, heating rate is increased. Directional range degrees of soy protein molecules are raised. These advantage the increase of soy protein gels transparency and strength. Microstructures of soy protein gels forming on DC heating condition are observed by SEM and the results showed that ordered structure of transparent soy protein gels on DC heating condition is more ordered than that of transparent soy protein gels on water bath heating condition.
首次从大豆蛋白的电特性和双电层模型上分析了直流电加热条件下,大豆蛋白分子定向的机理;通过对直流电加热条件下影响大豆蛋白凝胶透明性和强度主要因素的研究,分析和比较了直流电加热与水浴加热对大豆蛋白凝胶透明性和凝胶强度的不同影响,又进一步探讨了大豆蛋白凝胶透明的机理;直流电加热除了水浴加热中的温度作用以外,又增加了直流电场的定向作用,提高了加热速率,提高了大豆蛋白分子定向排列的程度,有利于蛋白质凝胶透明性和强度的提高;利用SEM对电场下大豆蛋白凝胶微观结构的观察,进一步证明了直流电加热比水浴加热形成的透明大豆蛋白凝胶微观结构具有更高的有序性。
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Hereinto, the study of Multi-Agent simulation of economies based on the complex adaptive system theory is an important research branch of the complexity of economy.
首先,由于现实经济中涉及的因素众多,相互关系复杂,给数学方法的运用带来了一定困难;其次,传统方法没有很好地解决经济系统的层次性结构问题,因此,无法对不同层次的特性差异给予一个整体性的解释,也就产生了宏观、微观相互脱节的理论体系上的缺陷;再次,传统经济理论对现实经济普遍存在的信息不完备与不确定性尚不能给予系统的解释;最后,传统经济中以观测数据为基础的经验主义的研究方法,无法深入了解经济的微观运行过程,从而降低了理论对现实的解释与预测能力。
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This article that focuses on the systematic and in-depth research in the current primal problem about abnormal burst pressure reservoir depress burst pressure has procured following main fruits:1 It forms the method which could obtain massive vertical static state mechanics parameters.2 In a foundation of acquisition of rock mechanics parameters,apply bent lamella that as mechanical model along with characteristic of actual geologic characteristics to analysis curvature for anticlinal strcture, get homologous tectonic stress value throug relation between the curvature and stress and different principal curvature in anticlinal structure,consequently set up laminational stress model for anticline reservoir. The block lamination for existed fracturing date has formed method of setting up mechanical model of lamination terrestrial stress by abtaining the block tectonic stress coefficients which are got by complex utilization test, laboratory test and fracturing date playback.3 Analysesing the main reason which lead to high burst pressure by considering the characteristic of reservoir geology,reservoir,and rock mechanics and reservoir damage,etc.Establishing burst pressure quantitative prediction model which provide gist for depressing construction risk and optimizing construction craft under the condition of open hole completion ,gun-perforated completion and damaged reservoir.4 Provding theoretical basis for interpreting acidification pretreatment which could depress busrt pressure by finding the relation between the influencing factors and rock machanics parameters and analysing the factors that have effect on rock mechanics parameters. Expounding the mechanism of reaction of mixed monomineral and acid from the angle of microcosmic element, evaluating quantitatively acid sensilility of different kinds of mineral effectively, and determing the first-order reaction dynamical equation of each mineral.5 Revealing rock mechanics property chage as a result of acid flooding in different condition by sandstone traumata experiment in different temperatures which combined with rock mechanics triaxial stress experiment.6 Associating damage mechanics with sandstone acidizing, established sandstone damage mechanics model in the foundation of the recognition on the rock mechanics parametric variation which is caused by acid-rock reaction in both macroscopic view and microscopic view ,also demonstrated those processes and quantitative estimated the acid busrt pressure to direct the site operation.
本文针对目前异常破裂压力储层降低破裂压力的主要问题展开较为系统和深入的研究,取得了以下主要成果:1形成了利用测井资料,结合室内岩芯测试结果,获取静动岩石力学参数的相关性特征,从而获得纵向上大量静态力学参数的方法。2在获取了岩石力学参数的此基础上,利用弯曲薄板作为力学模型,结合区块实际地质特征对背斜构造进行曲率分析,通过曲率与应力的关系,利用背斜构造不同部位的主曲率求得相应的构造应力值,从而建立起背斜储层的分层应力模型;对已有压裂资料的区块分层,形成了综合利用测试、室内实验、压裂资料反演获得该区块构造应力系数,建立起分层地应力的力学模型的方法。3综合考虑储层地质、油藏、岩石力学特性和储层伤害等因素,分析造成高破裂压力的主要原因,综合利用岩石力学、弹性力学等知识,建立了裸眼完井、射孔完井条件下以及储层受到伤害后的储层破裂压力定量预测模型,为降低施工风险和优化施工工艺提供了依据。4完成了物性、岩性影响岩石力学参数的因素分析,找出了各影响因素和岩石力学参数之间的关系,为从机理上解释酸化预处理降低破裂压力提供了理论基础;从微观元素的角度阐述了单矿物与酸反应的机理;并在此基础上,有效评价了各种矿物的酸敏感性,定量确定了岩石中各矿物的一级反应动力学方程。5完成了不同温度下的酸液类型、酸液浓度、注酸量等一系列砂岩损伤实验,结合岩石力学三轴应力实验,系统揭示了在不同条件下注酸而引起的岩石力学性质变化。6将损伤力学与砂岩酸化相结合,在宏观、微观两个方面认识酸岩反应引起岩石力学参数变化基础上,建立了砂岩损伤力学模型,并对其进行验证,在此基础上定量计算酸化后的破裂压力,有效指导现场施工
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The four sets of stator bars including those retired from three large generators and the standby bar subjected to Dynamic Mechanical Analysis, Scanning Electron Microscopic and optical microscope observation. It was revealed from DMA that the peak value tan d m of mechanical loss thermogram tan d ~ T shift toward a higher temperature and a lower amplitude, indicating that the amount of movement monomers diminished greatly in the insulation aging process, the tan d 195, increased very slightly with the service time of insulation, showing the degrading of bonding properties at interface, and the presence of more defects in insulation. The observation of SEM and optical microscope showed that more and more voids appears in insulation, and delamination was formed due to development of voids in aging process.
对不同运行年数的线棒进行了 DMA 、 SEM 、光学显微镜等微观分析试验,动态力学分析发现(参见 Hao et al, CEIDP, 2002:404),力学损耗温度谱 tan d ~ T 的峰值 tan d m 随老化时间向高温、低值方向移动,表明促成环氧发生玻璃化转变的活性侧基或发生局部运动的活性链段减少,分子链的刚性增强;195℃的力学损耗 tan d 195随老化时间有缓慢增大的趋势,表明有更多的能量耗散在界面处,界面的粘合性变差,甚至由于界面粘结不良出现微观缺陷; SEM 和光学显微分析发现(参见 Hao et al-2, IEEE DEI, 2003),老化后的绝缘气隙增多,随着老化时间气隙不断扩展或相互连通,绝缘逐渐分层。
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The ninth chapter contains the author's general study based on micro-level credit management. On the basis of summarizing the theories and methods for each procedure of credit risk control, referring to the recent total risk management concept in western countries, and with his years' of work experience, the author puts forward the theory of TRC that is based on micro-level credit management and the principles for the building of TRC.
第九章在总结微观信贷风险控制过程各流程环节的理论和方法研究的基础上,借鉴西方国家近几年才提出的全面风险管理思想,结合作者多年实践工作的体会,提出了基于微观信贷管理的全面风险控制的理论构想,TRC是对信贷风险控制所涉及的人员、过程和信贷品种三位一体(3P's)的全面的、系统的、动态的管理思路,并提出了构建TRC体系的原则框架。
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The formation of secondary phase in the non-equilibrium peritectic reaction was observed by precise transmission electron microscopy analysis. The microstructural evolution and phase selection regularities under different solidification velocities were constructed from the laser resolidification experiments. A new phenomenon involving two-phase coupled growth was firstly detected in the rapidly solidified Ti-Al peritectic alloy. The Ti-45Al-2Cr-2Nb alloy with fully lamellar structure ( a 2+ g ) was taken as an object to investigate the possible preparation of bulky metastable g phase materials based on both adjusting the competing nucleation relation and changing the growth kinetics condition.
首先通过过冷合金微观组织分析界定了各包晶合金熔体中各竞争相以初生相出现的过冷度区间;结合高温区的相图计算,从各相形核孕育时间角度揭示了过冷熔体中亚稳相与稳定相的竞争形核关系;通过精细微观组织分析,阐明了远离平衡时包晶反应中次生相的形成机理;在激光重凝快速凝固实验中建立了不同凝固速度下合金的组织与相形成规律,并对包晶合金中两相共生生长行为进行了深入分析;最后选取初生相为 a 的全层片 Ti-45Al-2Cr-2Nb 合金,从调整各相竞争形核关系和改变晶体生长动力学条件两个方面探索了块状亚稳 g 相材料的制备和控制。
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In this project, the selection criteria of matrix and reinforcement for obtaining composites with high strength and toughness are determined. The as-cast and aged microstructures of composites reinforced with particles of different strength are observed, and their metallurgical conditions and stabilization mechanisms are analyzed. The aging precipitation behaviors and mechanisms are studied. Some characteristics of nano-materials (micro-distortion areas) are found in 150nm- Al2O3p/Al composites and their formation mechanisms are expatiated. The "flexible" restriction to the deformation of the matrix by low strength AlN particle is observed by in-situ TEM and SEM techniques, and the mechanisms of its resist on cracks propagation and its contribution to composite strength are revealed. The high temperature deformation behaviors of Al2O3p/Al composites are studied. A rare-earth coating is established on sub-micron Al2O3 particles, leading to an improvement in wettability between coated Al2O3 and liquid aluminum and a decrease in infiltration pressure. The strength and ductility of coated particles reinforced composite are also increased. The interfacial characteristics, bonding structures and their formation mechanisms are studied, and the crystal orientation relationships between reinforcement particles and aluminum matrix are investigated. Finally a lighter composite with better balance of strength and damping properties is reinforced with hollow ceramic microballoons of ultra-lower strength.
本项目发现了获得高强度和高韧性复合材料的基体、增强体选择依据;观察了各种强度质点增强复合材料的铸态和时效态微观组织,分析其微观结构形成的金属学条件及稳定性机理,研究了其时效析出规律和时效机制,发现了150nmAl2O3颗粒增强铝基复合材料基体中的纳米材料特征,并解释了其形成机理;利用TEM和SEM动态拉伸技术发现了低强度质点AlN颗粒对变形协调的&柔性强化&机制,揭示了其对裂纹扩展的阻碍作用和对复合材料高强度的贡献;研究了中强度质点的Al2O3颗粒增强铝基复合材料的高温变形行为,并对其进行了稀土界面层设计与制备,改善了颗粒与铝合金之间的界面润湿性,降低了复合材料铸造渗透压力,提高了复合材料的强、韧性;研究了多种复合材料界面结构及形成机理,确定了增强体与基体之间的界面结合机制,分析了复合材料界面处的晶体学位向关系;最后制备了含微孔的中空型陶瓷颗粒增强的特种复合材料,得到了强度和阻尼综合性能较好的轻质复合材料。
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Relying on both dynamic and static analysis methods,both microstructure and macrostructure analysis methods,both on-line and off-line analysis methods,as well as both along-line sampling and die sampling techniques,the author of this thesis studied and developed an on-line microscopic system,the on-line rheometers and the on-line samplers which are used in single screw extruding process for the first time. Based on the analyses of a plenty of experimental results, the thesis mainly discussed following several questions: solid-bed break-up phenomenon on macroscopic scale,melting and deforming mechanism of a solid particle on small particle scale,and polymer morphology on microscopic scale.
本文作者通过把动态和静态分析相结合、微观和宏观分析相结合、在线和非在线分析相结合、沿程取样和机头出口样品分析相结合的方法,在单螺杆挤出过程的在线显微观察与摄影、在线流变测试、在线取样的大量实验分析的基础上,针对挤出过程中从宏观尺度范围的固体床破碎现象、到较小的颗粒尺度范围的固体粒子的熔融与变形、以至微观尺度范围的聚合物材料的形态结构的变化情况等有关几个的问题进行研究讨论。
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For the aged aluminum alloys which generally contain disc/plate-shaped or rod/needle-shaped precipitates, a model has been established, from the viewpoints of thermodynamics, kinetics and strengthening theory, to relate quantitatively the yield strength to the size, volume fraction and aspect ratio of precipitates which all were analytical associated with the chemical compositions of alloys, aging temperature and aging time. This model has been experimentally proved to well predict the variation of yield strength with the evolution of disc/plate-shaped or rod/needle-shaped precipitates for present Al-4. 62wt% Cu-0.65wt% Mg alloy aged at 513K and Al-1. 12wt% Mg0.57wt% Si alloy aged at 463K, respectively, and the yield strengths simulated by this model were also found to be in well agreement with previously measured values for a series of aged Al-Cu binary alloys, AA6061 and Al-Zn-Mg alloys.
以析出热力学、长大动力学及强化理论为基础,研究了含有盘/片状、棒/针状时效析出强化相铝合金在时效过程中时效析出相尺寸、体积分数和长径比等参数的演变及其对合金时效强化效果的影响,给出了合金成分、时效变量与微观组织参数之间非线性的解析表达关系式,进而从微观结构—宏观性能相结合的角度出发建立起了具有盘/片状、棒/针状时效析出相铝合金的时效工艺—屈服强度量化模型,并将该模型应用于不同温度、连续不同时间时效下Al-Cu二元系列合金、6061铝合金和Al-Zn-Mg系列合金的屈服强度预测,得到了与前人实测值吻合良好的结果。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。