particle boundary 中文意思是什麼
particle boundary
解釋
粉這界-
The computational results of the particle images are agreement with the simulated datain reasonable, the most absolute difference of the displacement is 0. 6671 pixel at the x abscissa and 0. 7928 pixel at y abscissa ; the computational results are equal to the data form the algorithm of particle brightness - distribution pattern tracking ( the conventional cross - correlation algorithm ) at voluminous points, their discrepancy is only one pixel at few points, mostly in boundary area
西安理工大學碩士學位論文最後，在visualfortran環境下給出了這種演算法的具體實現，處理模擬粒子圖像的結果與模擬數據比較吻合，最大位移絕對誤差在x方向是0 . 6671像素，在y方向是0 . 7928像素;計算結果與示蹤粒子灰度分佈模板法（基本的互相關法）在絕大部分點是相同的，只在少數點相差一個像素，而且大多出現在邊界區域。 -
In this paper a kind of cardio - cerebral arterial bifurcation vessel hemodynamic characteristics are studied with the boundary element method, and the blood flowing velocity vector distributions have been calculated. in addition, the flow field distribution and the pressure on the particle surface are also calculated, when there is flow - round particle at the place of bifurcation, the move tendency of the particle is judged, the possible reasons of causing the atherosclerosis, thrombus, angioma are analysed
本文用邊界元方法研究了一類典型心腦動脈分支血管中血液流動的流體動力特性，計算了分支血管血液流動的速度矢量分佈，同時計算了分支附近有多個顆粒狀繞流物時血液的流場分佈，及顆粒物所受壓力狀況，給出了顆粒物的運動趨勢，分析了引起粥樣斑塊病變、血瘤、血栓的可能原因 -
As in the particle in a box, it is the boundary conditions that force us to quantize the energy.
象在箱中粒子那樣，邊界條件迫使我們使能量量子化。 -
However, the application of particle boundary condition may destroy the validity of the method. we present some methods to ensure the rigorous charge conservation
數值模擬中發現，粒子邊界條件的施加破壞了有效電流分配方法對靜電修正的自動滿足。 -
The microwave magnetic sintering can not only lower the sintering temperature and shorten the sintering time, but also decrease the micro - grain size of magnets and make intergranular phase and grain boundary of main phase distributed well. the abnormal grain growth was found in conventional sintered ndfeb magnets, which may be due to the greater particle size and uneven distribution of powder, and higher sintering temperature and longer sintering time. of course, the abnormal grain growth would deteriorate the magnetic properties
微波磁場燒結的不但降低燒結溫度，縮短燒結時間，而且使磁體整體加熱，受熱更均勻，因而磁體晶粒更細小，並且主相晶粒邊界趨于規則化，晶間相的分佈更均勻；在常規燒結的磁體中則出現了晶粒異常長大現象，造成這一現象的原因，一方面可能是燒結溫度過高或燒結時間過長，另一方面可能是磨製的粉體均勻性較差，存在的大顆粒被許多細小顆粒包圍，在燒結過程中，大顆粒不斷吞併小顆粒，逐漸長大，而異常長大的晶粒自然會導致磁體性能的惡化。 -
We apply the system to the ultra - fine grain steel welding, the simulated mean grain size in cghaz agreed well with the corresponding independent experimental data. in this paper, three factors influencing the grain growth, the steep temperature gradient in haz. the grain boundary liquid and the precipitates particle, were studied specially using mc technique
研究表明溫度梯度造成的「熱釘扎」現象和晶界液化現象都對靠近熔合線附近的晶粒長大有明顯的阻礙作用，對最終的晶粒大小分佈有重要的影響：而800mpa超細晶粒鑰中的tin粒子山于溶解溫度高，抑制奧氏體晶粒長大的效果十分顯著。 -
Result of numerical simulation shows that the grads of continuous phase " s velocities decreases with the presence of microbubble of which the diameter is 100 / / w, the profiles of air volume fraction in the boundary layers is similar to triangle or echelon, affected by interaction among the particle, there is a saturated air fraction, within the scope of saturated air fraction, increasing the air injection ratio can accrete the friction reduction ratio, under the condition of same air injection ratio, the free - steam velocity is larger, the effect of friction reduction is worse
計算結果表明，直徑為100 m的微氣泡能減小近壁面連續相的速度梯度；微氣泡在邊界層中的濃度分佈近似為三角形或梯形分佈；受粒子間相互作用的影響，存在一飽和濃度；減阻率隨噴氣量的增大而增大，直至飽和噴氣量，此後，增大噴氣量，壁面摩擦阻力變化不大；相同噴氣量下，來流速度越大，減阻率越低。 -
As the moving particle in the turbulence boundary layer, the resistance on microbubble from water may be fallen inside the scope of the stokes law
作為湍流邊界層中運動的粒子，微氣泡受到水的阻力可能會在stokes阻力范圍內。 -
Certain discrepancy remain between the simulation results and the experiment results, not only caused by the turbulent model, but also by the simplification of the inlet boundary condition and the mesh generation. modeling gas - particles interaction flows is complex. in this thesis, gas - phase transport equations coupled with the gas - particle interaction are derived based on the dsm turbulent models to handle the interaction of momentum and kinetic energy of turbulence between the gas and particles
分離器內的固體顆粒運動採用涉及湍流擴散影響的隨機軌道模型和確定軌道模型，同時在湍流模型中加入了顆粒影響的源項，在流場計算的基礎上，模擬了不同直徑的顆粒在分離器內的運動規律及顆粒分離效率，並同理論和實驗得到的數據進行了比較。 -
The thesis mainly studies the assistance model of the structure evolution when the hsla steel is heated, works out the mathematic expression of the grain boundary in the process of interaction between grain boundary and second - phase particle, and develops a new physical model when grain are pinned by the second - phase participle
本文主要研究了碳鋼和微合金鋼在加熱過程中的組織演變規律的部分輔助模型，推導了晶界與二相粒子相互作用過程中變形晶界的數學表達式，建立了新的二相粒子釘扎晶界的物理模型。 -
2. we present a solution to the scattering of gaussian beams by a concentric multilayered non - confocal spheroidal particle by taking a concentric two - layered one as an example. because the boundaries of these two layers are connected with two different spheroidal coordinate systems, firstly, the electromagnetic fields between the inner and outer boundaries are expanded in terms of the spheroidal vector wave functions with reference to these two systems, and the electromagnetic fields within the inner boundary with reference to the system for it
2 .以雙層橢球為例，我們提出了一種研究同心非共焦多層橢球粒子散射的方法，首先把兩層橢球之間的電磁場用對應于兩個橢球坐標系的橢球矢量波函數展開，這兩個橢球坐標系分別與兩層橢球的邊界面相聯系，在每層橢球邊界面上分別應用邊界條件，建立關于各展開系數的方程組。 -
The boundary particle theory “ looks like ” a theory of particles in the absence of gravity
邊界上的粒子理論「看起來」像是一個不含重力的粒子理論。 -
From the boundary particle theory, quantum gravity and an extra dimension emerge when the equations are analyzed the right way
同樣的，如果循正確的途徑分析方程式，就能從邊界粒子理論中，解讀出量子重力論與額外維度。 -
Stated simply, the idea is as follows : a quantum gravity theory in the interior of an anti - de sitter spacetime is completely equivalent to an ordinary quantum particle theory living on the boundary
簡單來講，全像理論的想法是：位於反德西特時空內部的量子重力論，會完全等價於一個位在邊界上的一般量子粒子理論。 -
Sio _ 2 nano particle concentrates in the boundary lubricant film in the process of friction can repair the wear surface, embody the fine anti - wear performance
Sio _ 2納米微粒，在摩擦過程中富集在邊界潤滑膜內，能夠對磨損表面起到修復作用，表現出優良抗磨性能。 -
The micromechanics model of self - consistent scheme is that a particle is embedded in a homogeneous and isotropic medium whose conductivity is the unknown. at infinite distance from the particle a homogeneous boundary condition is prescribed
自洽方法的微觀力學模型是：夾雜相顆粒處于熱導率恰為原復合材料等效熱導率的均勻各向同性介質中，無窮遠處受均勻邊界條件。 -
Particle swarm optimization for chemical dynamic process optimization with fixed boundary value
粒子群演算法求解邊值固定的化工動態過程優化問題
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