Fractal study of scale effect in microscopic,mesoscopic and macroscopic states for fracture mechanism of rock materials;
岩石材料微、细、宏观断裂机理尺度效应的分形研究
The macroscopic property of the material differs from its microcosmic property greatly,the existing macroscopic theory is usually no longer suitable under the condition of the mesocosmic or microscopic view.
材料的宏观性能与微观性能相差甚远,已有的宏观理论在细观或者微观情况下通常不再适用;为更好地理解材料的力学性能,需要进行宏观,细观、及微观三个层次相结合的三观研究,但如何将这三个层次的现象联系起来,无论对哪一学科都还是难题。
The microscopic oil production mechanism and macroscopic oil production mechanism are discussed in this paper, the main origin for the existing remaining oil in the round of injectors is analyzed.
阐述了朝阳沟油田注水井微观出油机理和宏观出油机理,以及逆向驱油(注水井转抽)可以克服毛管力的圈闭作用和贾敏效应,证明了在毛管力作用下注水井周围的油层中存在大量的剩余油,为挖掘低渗透油田剩余油潜力提供理论依据。
The Macro-Survey for 《Research and Application in Remote Sensing and Monitoring over Jiulong River Watershed Eco-environment》Project;
宏观审视《九龙江流域生态环境遥感监测研究与应用》项目
This paper introduces the current actuality of the study of residual oil distribution in the world,addresses the technology of the study from the points of both micro and macro scale: the micro scale study includes physical modeling and computer modeling;and the macro scale study includes logging interpretation,3D seismic and flow unit division.
介绍了国内外剩余油分布的研究现状,从微观规模和宏观规模2个角度对剩余油研究技术进行了综述,微观规模常用的研究技术主要有物理模拟、计算机模拟等,宏观研究常用技术有测井解释、三维地震、流动单元划分等。
Based on the measurement of macro mechanical properties and surface microhardness,and the analysis of dislocation structure and micro-fracture of 45# steel in different periods of fatigue,the changing rulers of macro mechanical properties(elasticity,plasticity and strength)and meso mechanical property with cycles during fatigue damage were investigated systematically.
通过对疲劳不同阶段４５~＃钢试样的宏观力学性能测试、表面显微硬度测量及位错结构与显微断口分析，研究了疲劳损伤过程中材料的宏观与细观力学性能随疲劳损伤的变化规律，以及剩余力学性能变化与材料内部位错结构演变及断裂特征变化的关
While the contradict of microcosm and macrocosm is emphasized,the integration of them should be presented in order to make students get a more precise understand.
化学教学中有诸如物质性质、实验现象、物质作用等宏观概念,又有诸如分子、原子、离子、质子、中子、电子等微观概念。
This article illustrates by the specific examples that the integral formula of Gauss s law when having insulator is a macrocosm formula under a certain condition and it can t explain microcosm.
该文通过具体例子说明了有介质时的高斯定理的积分形式是在一定条件下的宏观表达式 ,它不能解释微观现
Methods-the microstructure and macro morphology changes at different processing condition were determined through digital cameral,metallographic microscope,scanning electro microscope.
为了研究腐蚀介质、预处理工艺对镁合金试样的影响,用数码相机、金相显微镜和扫描电子显微镜观察了不同工艺条件下镁合金试样的宏观形貌和微观组织变化。