查询词典 fluid dynamics

The second part was to test the appearance, ingredient analysis, surface potential, thermal conduction properties, and magnetism of the nano composite fluid prepared from the parameters. The experiment found that unoxidized particles, Ag, Cu, Fe, and Ni appeared round. If combined with oxygen in water as oxides, the nano particles would grow toward certain directions. In copper/iron nano composite fluid, FeO appeared cubic, Cu2O appeared coniferous. In silver/iron nano composite fluid, FeO was polygonal. In dielectric potential detection, the nano composite fluid was likely to aggregate and deposit, except for silver/iron set. In other sets, the pH of silver/cobalt nano composite fluid was 7, surface potential was 21.21mV; the pH for silver/nickel nano composite fluid was 6.5, surface potential was 21.04mV; the pH for copper/iron nano composite fluid was 7, surface potential was -30mV. The fluid particles of the three sets could all maintain suspension of 2 weeks or more. For thermal conduction, the silver/nickel, nano composite fluid showed the best thermal conduction. Under temperature of 30℃ fluid weight conduction of 0.4%, the thermal conduction increase was 26%. For magnetic detection, except for silver/iron nano composite fluid, the nano particles of other three sets were paramagnetic, and all four sets were soft magnetic nano composite materials.

第二部分。将由较佳制备参数所产出的奈米复合流体，进行形貌外观、成分分析、表面电位及热传导性质实验与磁性检测；在奈米颗粒的形貌部分，经实验发现Ag、Cu、Fe、Ni等未氧化的颗粒皆呈现近似圆形，而若与水中的氧结合形成氧化物，奈米颗粒则会朝特定方向成长，在铜/铁奈米复合流体中FeO为四方体结构、Cu2O的颗粒是针叶状，在银/铁奈米复合流体中FeO则为多边形结构；而介面电位检测方面，结果显示经本制程所产出的奈米复合流体除银/铁奈米复合流体这一组较容易聚集沉淀外，其他三组中银/钴奈米复合流体的pH值为7，表面电位为21.21mV，银/镍奈米复合流体的pH值6.5表面电位为21.04mV而铜/铁奈米复合流体的pH值为7时表面电位约在-30mV，且此三组流体颗粒皆能维持悬浮性2周以上，悬浮性较佳；热传导实验部分，四组奈米复合流体中以银/镍奈米复合流体在增进热传上效果最佳，在温度30℃及流体重量浓度0.4﹪条件下热传导系数增进达26﹪；磁检测方面，除了银/铁奈米复合流体外，其他三组奈米颗粒皆属顺磁性，且这四组奈米复合材料都是属软磁性。

Under the basis of physiological data, a non-linear and unsteady comprehensive mathematical model of microcirculatory dynamics with distributed parameters is developed. Hemodynamics, interstitium dynamics, lymph dynamics, dynamics of protein transport, oxygen dynamics, dynamics of heat transfer, and myogenic and metabolic regulation procedures are included. The interactions between these factors are comprehensively exhibited. The influences of arteriolar vasomotion and non-linear viscoelasticity of blood in arteriole are considered.

根据微循环系统的生理情况，建立了微循环系统动力学非定常、非线性分布参数模型，包括血液动力学、间质动力学、淋巴动力学、蛋白质传输动力学、氧动力学、热量传输动力学和肌原性与代谢性调控过程，综合反映了它们之间的相互作用，并考虑了微动脉自律运动和血液非线性粘弹性的影响。

The BMSCs were divided into six groups after repeatedly passaged: A,the BMSCs were cultured with conventional culture fluid(DMEM culture fluid+20%fetal bovine serum+2 mmol/L aminoglutaric acid amine) all the time;B,the BMSCs were cultured with conventional culture fluid+HGF(25ng/ml)+dexamethasone10~(-7M;C(HGF and Zuoguiwan induced group), the BMSCs were cultured with conventional culture fluid+ HGF(25ng/ml)+ dexamethasone10~(-7M+ 10%Zuoguiwan drug serum;D(conditioned medium and contrast serum induced group), the BMSCs were cultured with conventional culture fluid+50 % conditioned medium+10 % normal rat serum;E(conditioned medium and Bazhentang drug serum induced group), the BMSCs were cultured with conventional culture fluid+50 % conditioned medium+10 % Bazhentang drug serum;F(conditioned medium and Zuoguiwan drug serum induced group), the BMSCs were cultured with conventional culture fluid+50 % conditioned medium+10% Zuoguiwan drug serum.

常规培养组始终使用常规培养液(DMEM培养液+体积分数20％胎牛血清+2mmol／L谷氨酸胺)进行培养；HGF诱导组以常规培养液+促肝细胞生长因子(HGF，25ng／ml)和地塞米松10~(-7M进行培养；HGF加左归丸组以常规培养液+促肝细胞生长因子(HGF，25ng／ml)和地塞米松10~(-7／M+10％的左归丸含药血清进行培养；条件培养液加对照血清组以常规培养液+50％的条件培养液+10％正常大鼠血清进行培养；条件培养液加八珍汤组以常规培养液+50％的条件培养液+10％八珍汤含药血清进行培养；条件培养液加左归丸组以常规培养液+50％的条件培养液+10％左归丸含药血清进行培养。

For frequency information fluid identification technology:the basic theory of fluid identification based on frequency information has been introduced,for inner and external factor affecting frequency,some steps have been proposed to attain reserved amplitude and frequency analysis data with high resolution,high S/N ratio;through the comparison of time-frequency analysis method, the high accuracy time-frequency analysis method has been selected to extract time-frequency attributes;the analysis method flow of common single frequency fluid identification has been proposed,according to the data of full frequency band,several anomaly zone modes of common single frequency attribute have segregated; incorporating converted wave and compression wave,fluid identification method based on PS wave combined time-frequency analysis has been proposed;the AVO property of various fluid type in frequency domain has been studied;the generalized fourier analysis method,Proni absorption filter has been introduced,and researched for anti-noise and for the seismic processing interpretation flow.The above technology have been applied to fluid identification of organic reef in WBT area in the east of Sichuan and fluid identification of clastic rock in GUANGAN area in the middle of Sichuan,the results show that the above methods are effective.

基于频率信息的流体识别技术方面：介绍了利用频率信息流体识别的基本理论，针对影响频率的内、外在因素，提出一些针对措施，以获得高分辨率、高信噪比的保幅、保频分析数据；通过时频分析方法的比较，选取高精度的时频分析方法提取时频属性；提出共单频属性进行流体识别的分析方法流程，结合全频带数据，分出几种共单频属性异常带模式；联合转换波资料和纵波资料，提出基于纵横波联合时频分析进行流体识别方法；研究了频率域内不同流体类型AVO现象；引进一种广义傅立叶分析方法：Proni吸收滤波，研究其抗噪性以及进行地震处理解释的流程；将这些技术应用川东北五百梯区块进行生物礁储层流体的识别和川中广安陆相碎屑岩的流体识别，取得较好的效果。

Experiment results indicate that the magnetic fluid flux has a direct relation with the magnetic field under the effect of traveling wave magnetic field. The bigger the magnetic field is, the more the flux is, when the structure of the magnetic fluid travellig pump and the saturation magnetization of magnetic fluid are constant. The volumes of the magnetic fluid from the travelling wave pump increase from 1.9 ml to 3.1 ml, when the magnetic field intensity increases from 25 900 A/m to 40 000 A/m. In addition, the change rate of the magnetic fluid decreases with the increase of the magnetic field due to the effect of magnetic field on magnetic fluid viscosity. The bigger the saturation magnetization of the magnetic fluid is, the more the flux is.

结果表明，行波磁场作用下的磁性流体流量与磁场的强度有直接关系：在磁性流体行波泵结构和磁性流体饱和磁化强度相同的条件下，磁场强度越强，其流量越大；当磁场强度从25900A/m增加到40000A/m时，单位时间内从行波泵内流出的磁性流体的体积由1.9 ml增加到3.1 ml；随着磁场强度的不断增加，磁性流体流量的变化率由于磁场对其粘度的影响而减小；而磁性流体的饱和磁化强度越大，其流量也越大。

The rules of fluid rate with different technical parameters: the increase of electromagnetic force causes the increases of the fluid rates at S/L interface and free surface, the decrease of skin depth, the increase of electric current density which will make the fluid at free surface flowing faster, while it doesnt affect the fluid rate at S/L interface. When the height of melt increases, the both of fluid rates will increase too. The increase of the width-thickness ratio augments the fluid rates along the wider edges at S/L interface evidently, while the rates along the narrow edges will have little change, and the rate at free surface has little change too. The increase of overheat degree minishes the range of mush zone, while the fluid rates at S/L interface and free surface will increase evidently.

流速的大小随各种不同工艺因素的变化呈现出一定的变化规律：随电磁力的增大，固液界面以及自由表面处的流速都会增大；集肤层渗入深度变薄，电流密度增大，会导致自由表面上流动的加强，但对固液界面处的流动速度影响不大；熔区高度的增加，也会使固液界面及自由表面处的流动增强；宽厚比增大时，固液界面上沿宽面方向的流动显著增强，但窄面方向流速变化不大，同时自由表面上流速变化也较小；过热度及温度梯度的增大，使糊状区减小，导致固液界面及自由表面处的流速显著增大。

This course introduces basic knowledge of Analytical Mechanics and theory of movement stability, and focuses on dynamics knowledge related tightly with engineering technique such as orbit moment in central gravitation field, electromechanical coupling dynamics, rigid-body dynamics, gyroscopic dynamics, manipulator dynamics et al.

本课程较系统地叙述了分析力学和运动稳定性理论的基础知识，着重介绍与工程技术密切相关的动力学知识，如中心引力场中的轨道运动、机电耦合系统动力学、刚体动力学与陀螺力学、机械臂的动力学分析方法。

The dynamics model of missile sealifts system for navy ships connected parallely is established. The dynamics simulation analysis of system is studied. The dynamics characteristic of missile box on the condition of different sea states and place parameters of crane are analyzed. The theory and technology bases for the design of system of missile sealifts or navy ships connected parallely are presented. The controlled multibody system dynamics of the system of missile sealifts with wave compensation for navy ships connected parallely is presented. On the condition of stochastic momevement of depot ship and incept ship and under the action of sealifts and wave compensation, the dynamics of sealifts system is studied by using discrete time transfer matrix method of multibody system. The calculate method of electric machine impule is developed in the process of supplying missile and action of wave compensate. Based on the PLC control system, the control method, which control supply process by testing torque of guide strings is presented.

本文建立了舰艇并靠导弹补给动力学模，进行了舰艇并靠导弹补给及波浪补偿系统动力学仿真分析，获得了导弹箱在不同海况下和舰用起重机不同位置参数的运动规律，为舰艇并靠导弹补给系统设计提供了理论依据和技术基础；建立了舰艇并靠导弹补给及波浪补偿受控系统多体动力学，在补给舰和被补给舰随机运动下，在补给和波浪补偿系统作用下，应用多体系统离散时间传递矩阵法进行了补给系统动力学分析，得到了导弹补给过程中，波浪补偿时，导引电机和卷扬电机输入电机脉冲计算方法；建立了以PLC 控制系统为核心，用扭矩传感器测量导引带产生的扭矩来控制补给过程的控制方法；对系统振动问题进行了研究，提出了通过调整伺服电机参数减少系统振动的方法。

Body fluid bears two physiological functions: moistening and nourishing:body fluid distributed to the body surface moistens and nourishes the muscles and skin with hairs; body fluid permeated through the body orifices moistens and protects the eyes, nose,mouth and other openings; body fluid infiltrated into the blood vessels nourishes and smooths them and is also the basic component of blood; body fluid poured into the internal organs nourishes and moistens them, and body fluid in the bone nourishes and moistens the bone marrow, spinal cord and brain marrow.

津液有两种生理功能：滋润和营养。津液分布于肌表滋养肌肤毛发；渗透于体窍滋润和保护眼、鼻、嘴和其它官窍；津液渗透至脉管起到营养和滑利的作用，也是血液的基本组成成分；津液注入内脏使其得到滋养；骨中的津液对骨髓、脊髓和脑髓起到滋养作用。

The biometallogenesis system of Jinya gold deposits consists of the following procedure: pre-concentration of gold and metallogenic matter in living organisms in Luodian-Danchi rift depositional basin; solution, absorption and concentration of metallogenic matter in organic matter and organic thermal fluid generated from organisms during lithogenesis; migration of gold and metallogenic matter in organic fluid from basin to Lingyun underwater carbonate platform and concentration at its boundary convex (palaeo-blind-mountain) during basin compaction ; metallization due to depth thermal fluid making organic fluid thermal degradation and forming new fluid which riches in gold and sulfur, and the fluid migrating upward and depositing in upside ore-controlling structures because of absorptions by organic carbon and atc.

通过研究金牙金矿作用的生物成矿系统内容为：在早、中三叠世罗甸—丹池裂谷盆地接受沉积时，生物对金等成矿物质就存在预富集作用；在成岩过程中，生物转化为有机质及有机热流体，对生物及沉积物中的金等成矿物质存在溶解、萃取、富集作用；在盆地压实成岩作用中，盆地中有机热流体向凌云水下碳酸盐台地运移，并在台地边缘外凸部位集中，此过程流体携带大量成矿物质，对金等成矿物质存在迁移集中作用；深部热流上侵使有机流体发生降解和释放金的热作用、形成高含金的有机热液，含金热液上移在构造通道中沉积并被有机碳再次吸附，最终形成金矿床，对金存在成矿作用。

"Please accept this talisman as a token of our thanks."

请收下这个护身符以表达我们的感谢。

If I have that magic, I will be more acceptable in the society.

如果我拥有那种魔法，我将更加被这个社会所容纳。