流體基元 的英文怎麼說
中文拼音 [liútǐjīyuán]
流體基元
英文
fluid element-
Objective to investigate the effects of fluid shear stress on il - 8 gene in human umbilical vein endothelial cells ( huvecs ) and the roles of time course of low shear stress and intensity of fluid shear stress using lightcycler ? system ; to investigate the gene expression profiles in huvecs exposed on low shear stress ( 4. 20 dyne / cm2, 2 h ) and incubated by 17 p - estradiol ( 10 - 7 m ) + low shear stress ( 4. 20 dyne / cm2, 2 h ) using the cdna microarray approach. methods endothelial cells were isolated from human umbilical cord veins by collagenase treatment as described by jaffe and modified
目的探討人臍靜脈內皮細胞( humanumbilicalveinendothelialcells , huvecs )在流體切應力作用下il - 8基因的誘導表達以及切應力的作用時間和作用強度對il - 8基因表達影響的變化規律;利用表達譜基因晶元技術研究內皮細胞在低切應力( 4 . 20dyne cm ~ 2 , 2h )作用下其切應力相關基因的表達情況以及生理濃度( 10 ~ ( - 7 )的17 -雌二醇孵育內皮細胞48h ,再經同樣條件的切應力處理后對內皮細胞切應力相關基因表達的可能影響。Fluid power systems and components - cylinders - elements and identification code - part 3 : basic series of piston strokes
流體動力系統和元件.液壓缸.元件和識別碼.第3部分:活塞沖程的基本系列According to different signal forms, we plan for the execution methods of three test items : servosystem performance, discrete signal input, discrete signal output., and decide the necessary modules which this ate is composed of
按照測試信號流程劃分了三類測試項目?隨動系統性能檢測、離散信號輸入測試、離散量輸出測試?擬定了相應的實現方案,在此基礎上確定了構造這臺ate的所需的硬體單元。In this paper, the method of digital evolvable hardware is studied based on the dynamical reconfiguration of field programmable gate array ( fpga ). in the paper, firstly, the basic conception and theory of ehw are roundly introduced and the structure characters of ehw chip are analyzed. secondly, the thought of standard evolutionary algorithm is discussed and the flow of improved evolutionary algorithms is analyzed
本文首先較全面地介紹了硬體演化技術的基本概念和原理,分析了演化硬體晶元的結構特點;其次,討論了標準演化演算法的思想並對改進型演化演算法的流程進行了分析;然後著重分析了演化硬體實現中的關鍵技術,對其實現方案進行了深入的研究,文中分別採用外部演化和內部演化兩種方式對不同的應用電路進行了演化。We deduced the basic theoretical formula for analyse piezoelectrics and acoustic fluid using fem
推導了使用有限元分析壓電體和聲學流體的基本理論公式。Through the analyzes of electromagnetic system of a axial symmetry by the method of electromagnetic vector potential, an eddy current field math model is build by triangle cell, this article has researched the effect of power frequency to eddy current density, penetration depth and the skin effect
本文以電磁場矢量位有限元法為基礎對二維軸對稱場的磁場強度、渦流密度進行了計算求解,採用三角形單元和六面體單元建立了渦流場數學模型,研究了電源頻率對渦流密度、透入深度及集膚效應等場量的作用影響。The force, caused by the impact of the fluid on the obstruction, causes a deflection of the primary element.
由流體障礙物撞擊而產生的力,使基本元件發生變位。The paper depicts the elasticity with euler form and associates the form with depiction of behavior of fluid. the method takes the velocity as basic variables and then derives the left - deformation tensor from the velocity in order to deal with the time - independent motion. at last in this chapter the equations of the finite flow - element are set up from the principle of the virtual work
首先建立流管元的概念,對彈性固體相關的部分採用euler描寫,並融入流體行為的描寫中;以速度為變量,反推左變形張量,用於處理流固物質的定常運動,給出了控制方程和相應的變分式;以此為基礎發展了一套相應的有限流管元演算法。In this work, we detailedly introduced the whole ideas of rkdg finite element method and the theory of constructing gas - kinetic schemes based on boltzmann equation. and then presented a kind of new computational method for solving id and 2d compressible euler equations, i. e. firstly, we discretize euler equations in the space with discontinuous galerkin finite element method ; secondly, we discretize temporal variable t with runge - kutta formula ; thirdly, for numerical fluxes constructing, we give two kinds of different numerical fluxes - kfvs and bgk numerical fluxes by using gas - kinetic schemes
本文分別對rkdg有限元方法的整個思想和基於boltzmann方程的分子動力學格式的構造思想給予了詳細的介紹,並分別結合rkdg有限元方法與kfvs數值通量和bgk數值通量的構造方法,給出了一種求解一維、二維可壓縮流體力學方程組新的計算方法,即,我們先用間斷有限元方法進行空間離散,然後再對所得到的半離散格式使用runge - kuttatvd方法進行時間離散,得到全離散格式。On the basis of the study on ore deposit geology, the paper discussed thedistribution of temperature field of ore body through mineral inclusion thermometry. combining with mineralizing elements distribution condition and the zoning feature of orefabrics, flowing direction of ore - forming fluid was also inferred in the paper
在研究礦床地質的基礎上,使用礦物包裹體測溫方法,研究礦體溫度場的分佈,配合礦化元素的分佈狀態和礦石組構分帶特徵,推斷成礦流體的噴口位置和運移方向。Treating the soil as a two - phase mixture and considering the interactive influence of seepage and solid deformation, this paper analyzes the dynamic impedance of group piles in layered saturated porous media by indirect boundary element method and investigates the effects of pore fluid in saturated soils on dynamic impedance of piles
摘要將飽水軟土地基視為兩相介質,考慮水的滲流和土骨架變形的耦合作用,用間接邊界元法分析層狀飽水軟土地基中橫向受荷群樁動力阻抗,探討飽和土中孔隙流體對飽和土中橫向受荷群樁動力阻抗的影響。In the chapter 3, after the multi - stroke plane distributor was designed, pressure field of the plane distributor was calculated with fem. at the same time, the cad software for it was developed according to the above arithmetic
第三章在初步設計計算內曲線端面配流盤的基礎上,採用流體有限元方法精確計算分析了端面配流盤的壓力流場,同時根據上述演算法開發了端面配流盤計算機輔助設計軟體。In this dissertation, the author presents a model of transforming element fracture net into element equivalent hydraulic conductivity tensor. this model can effectively reflect the obvious anisotropy and non - homogeneity of fracture rock seepage and makes it easier to simulate the various aperture fissure and display the fundamental characteristics of discrete fissure net. in addition, the model is can also make the best use of the sound theoretic foundation of equivalent continuum model
< wp = 5 > 5 、本文提出將單元裂隙網路轉化為等效單元滲透張量的裂隙網路轉換模型(單元網路模型) ,具有真正體現裂隙巖體滲流明顯的各向異性和顯著的非均質性、易於模擬變隙寬裂隙、基本顯示巖體裂隙網路滲流的基本特點、充分利用連續介質模型雄厚的理論基礎等特點。In chapter 1, the magnetostrictive mechanism of the giant magnetostrictive materials and the main features of the materials are introduced briefly, and the research background including the materials applications in abroad and home is given. furthermore, the problems existing in the update applications are pointed out. especially the various applications of the magnetostrictive material in fluid power - transmission and control are also introduced
本文從超磁致伸縮材料的主要特點及其應用概況出發,以國產的超磁致伸縮材料為基礎,進行了超磁致伸縮電?機械轉換器的結構及在流體控制元件中應用的研究,探討了超磁致伸縮電?機械轉換器常用的熱補償方法,並結合流體控制元件的具體特點,採用熱補償管進行熱補償。The piezoelectric - pump driven by piezoelectric - stack is a newly development trend, it can accommodate frequency and pressure in a large scale and control the output flux in precision. this pump will widely apply to transfusion, feed oil and clean the equipment in industrial automation, and scientific research, lab, chemical preparation and cooling of cpu etc. driven theory of piezoelectric - stack because the piezoelectric - stack is the core part of the pump that we designed, we should pay more attention to driven principle of the piezo - stack so that we can using it correctly. this paper introduces piezoelectric material and interrelated parameter, output characteristic and driven principle and driving type of piezoelectric - stack
壓電疊堆泵是一種以壓電疊堆作為驅動元件的微型泵,它是隨著mems的發展而發展起來的。本文提出利用壓電疊堆與柔性鉸鏈放大機構配合來驅動微型泵的橫隔膜,以達到泵送流體的目的。本文在查閱國內外大量文獻的基礎上,總結了國內外壓電疊堆泵的研究現狀,分析了壓電疊堆的動靜態特性,提出一種以壓電疊堆作為驅動源的壓電流體泵的構想。Based on the careful strata correlation and division of chang - 6 formation of panguiang in jing ' an oil field, the article discusses the structure characteristics, the sand body shape and distribution and the microfacies feature of chang - 6 oil set, analyses the physical properties and heterogeneities of the reservoir which is classified three types as i, ii and iii type, summarizes the relation between microfacies, sandbody distribution and physical properties, evaluates the reservoir from the flow unit aspect, reveals the affecting feature of oil concentration
本文在對靖安油田盤古梁油藏長6油層組進行小層精細劃分和對比的基礎上,詳細研究了盤古梁長6油層組的構造,砂體形態、展布方向及沉積微相特徵,對儲層的非均質性作了定性定量的分析並且對其進行分類,總結了沉積微相和砂體展布、物性之間的關系,從流動單元的角度對砂體進行了評價,揭示和確定油氣富集規律的影響因素。On the base of the quasi two - stage compression heat pump system with economizer, considering that it can make use of the pressure energy of liquid with high pressure and minish energy losing of the system, ejector is adopted to replace the throttle in the assistant loop, and design the quasi two - stage compression heat pump system coupled with ejector
本課題正是在帶閃發器準二級壓縮熱泵系統的基礎上,考慮到噴射器元件可以有效利用高壓流體壓力能,減小系統能量損失的優點,將其引入系統以替代輔路節流閥,設計出了準二級壓縮?噴射復合熱泵系統。Fortunately, we can solve this problem by using ap ( alternating projection ) algorithm, by this way ; the computational load can reduce dramatically. doa estimation is mostly research base on linear array, because of the limitation of linear, it can estimate the azimuth only ; solid array can estimate the azimuth and elevation, in this paper, the solid array is used for doa estimation ; when the signal sources are uncorrelated, the music algorithm is chosen, using mdl / aic algorithm, we attain the signal number of sources
本文採用立體六元陣進行測向,在非相干信號源條件下,採用music演算法進行doa估計,採用基於信息論原理mdl準則或者aic準則判斷信號源數目,通過對陣列流形的研究,指出基於圓陣的陣列流形具有的某種對稱性,利用該對稱性來降低運算量,並且通過對演算法的研究,提出用維數較小的信號子空間或噪聲子空間來計算空間譜,進一步減小music演算法運算量。Electromechanical components for electronic equipment. basic testing procedures and measuring methods. chemical resistance tests. fluid resistance
電子設備用機電元件.基本試驗程序和測量方法.耐化學性試驗.流體阻力The mafic rocks have high ( 87sr / 86sr ) j ( 0. 7046 - 0. 7077 ) and 207pb / 204pb ( 15. 47 - 15. 67 ), but relatively low in ( 143nd / 144nd ) i ( 0. 5125 - 0. 5127 ) and 206pb / 204pb ( 18. 26 - 18. 52 ). the negative correlation between 143nd / 144nd and 206pb / 204pb and the positive relationship between 87sr / 86sr - 206pb / 204pb suggest a mixing of a depleted mantle source and an em2 component in the study area. calculation reveals that the maopin - shaianjiao mafic rocks are formed by 5 - 15 % degree of partial melting of an lree - riched spinel iherzolite
模擬計算表明,該基性巖墻群是尖晶石二輝橄欖巖地幔5 - 15部分熔融的產物;微量元素配分模式及理論模擬表明茅坪?曬鞍角基性巖體的地幔源區在熔融前曾受到1俯沖沉積物熔體的源區混染和5流體交代作用。分享友人