查询词典 continuum problem

Based on the theories of rheology, Non-Newtonian Fluid Mechanics, petroleum chemistry, crystallography and pipeline technology etc. and sampling Huabei crudes, experimental indexes and programmes are drew out, integrating the oil properties and parameter analysis; in terms of the macro analysis of continuum mechanics, substantial experiments are conducted with HAAKE RS600 rotational rheometer and the rheological equation as well as the viscosity-temperature equation are further developed with tested rhrogramme and viscosity-temperature curve, respectively. Beased on the researches on thixotropic mechanism and thixotropy fluid property, hysteresis loop curve, structure failure and viscosity build-up curve as well as shear stress decrement curve for one type oil are first present in this paper. According to the theoretical researches and testing results, a novel thixotropy equationwith τ=τ_∞e~ pattern, which is of hi-accuracy, few parameter and simplicity, is developed.Considering the influence of various parameters on rheological behaviour, depressant adding condition is optimized and experimental evaluation on BEM-5P is conducted, which further unrip its mechanism on the Huabei crude. A corresponding viable pipe transportion programmel is also recommended.

本文基于原油流变学、非牛顿流体力学、石油化学、结晶学、原油管输工艺学等理论，以华北原油为研究对象，结合原油物性及实验影响因素分析，制定出实验研究的评价指标及实验方案；从连续介质力学宏观分析的角度，利用HAAKE RS600高端旋转流变仪开展了大量的室内实验，并运用微观研究方法，测定了油样的流变曲线和粘温曲线，建立了流变方程和粘温方程；通过对触变性机理和触变性流体特征的研究，首次对华北原油测定出滞回环曲线、结构破坏与恢复粘时曲线、剪切应力裂降过程曲线，并在理论研究和实验结果的基础之上，建立了能定量描述含蜡原油剪切应力裂降过程的新型三参数触变模式τ=τ_∞e~b/(t+c，该模型具有精度高、参数少、实验简便且适用性强的特点；通过对含蜡原油流变性的影响因素理论研究，开展了加剂条件优选及BEM-5P降凝剂室内评价实验，进一步揭示了降凝剂对华北原油作用机理，在此基础之上，提出了华北原油管输的可行性方案。

A generalized equivalent-continuum method is presented for calculating variably saturated seepage flow in fractured porous media.

描述了一种计算裂隙多孔介质中变饱和渗流的广义等效连续体方法。

The difference of micropolar elasticity from classical continuum is that the former incorporates micro-rotation in its deformation formulation and couple stresses in its stresses.

本文综述了碳纳米管国内外研究现状及进展，然后在总结前人研究成果的基础上，应用适合于研究微观力学的微极性弹性理论和非局部弹性理论对碳纳米管的静力学、屈曲以及动力学性能进行了研究。

Directness and In directness in Intercultural Communisation;2. Discourse in directness degree is a continuum,with the lowest and highest in directness degree at either end.

仅仅用&直接的&和&间接的&两个形容词来区分男女的话语风格特点过于绝对和片面，不能解释生理性别与性别角色不相符的现象。

Most notably they contribute to broader conceptualisation of anxiety symptoms as a continuum of risk, in which avoidance may emerge as a relatively adaptive response to conditioned threat.

多数 他们对忧虑症状的更加宽广的概念化著名地贡献作为风险连续流，退避也许涌现作为对被适应的威胁的一个相对地能适应的反应。

The first part, first of all, made it clear that Continuum and Ideal Type proposed by Max Weber are the most important study tools in this paper.

第一部分，首先明确了本论文的研究工具，即连续统思维和马克斯·韦伯提出的理想类型法。

The mechanism of the continuum radiation of the plasma induced by laser ablating aluminum is discussed.

简要讨论了激光诱导等离子体连续辐射的产生机理。

Time distribution of the continuum radiation in the plasma induced by laser ablating Al .

激光诱导Al等离子体连续辐射的时间分布。

In this paper, exploration and exploitation are conceptualized in terms of a nonlocal-local search continuum in three-dimensional supply, demand, and geographic space.

本文从三维的供给、需求以及地理空间的非局部－局部连续统一体的角度，对探索与开发的概念进行阐释。

The two-dimensional continuum can be split into two one-dimensional continua: time and space.

对于每一个坐标系，二维连续区都可以分解为两个一维连续区：时间与空间。

I am a stripper at heart really.

我真的是个心灵的清洁工。

Some,like Leviton's Decora Occupancy Sensor($70),are designed to replace astandard wall switch.Others are ceiling-mounted.

有些人，如立维腾的装扮感应器(70美元)，旨在取代标准的墙壁开关。