粒子分佈函數 的英文怎麼說
中文拼音 [lìzifēnbùhánshǔ]
粒子分佈函數
英文
particle distribution function- 粒 : Ⅰ名 (小圓珠形或小碎塊形物) small particles; grain; granule; pellet Ⅱ量詞(用於粒狀物)
- 子 : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 函 : 名詞1. [書面語] (匣; 封套) case; envelope 2. (信件) letter 3. (姓氏) a surname
- 數 : 數副詞(屢次) frequently; repeatedly
- 粒子 : grain; granule
- 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
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On the basis of this, we selected rms as feedback variable and constructed the controller g : add this controller to the right of ion radial self - edlctric force equation like equation ( 1 ). we simulated the motion of ion beam by using muti - paticle code ( partice - in - cell ( pic ) code ). the results demonstrated that the beam halo of five different initial distribution is eliminated well under the same controller. the halo intensity of k - v distribution, water - bag distribution and parabolic distribution and be reduced to zero. in the case of 3 - sigma distribution and full gauss distribution, the result is agree with minimum limitation ( 10 " ) of halo intensity of factual high intensity accelerator
在此基礎上,選擇a為控制變量,構造延遲反饋控制器g : g ( s glrrms ( s )一rms ( s ) ( 2 )同( l )式一致,將此控制器函數加在粒子徑向所受束自生場力方程的右邊。利用多粒子數值模擬程序( pic )進行了控制試驗。模擬結果表明,用同一個控制器和同一個控制參數即可實現五種不同初始分佈情況下的束運一混飩的有效控制。The integrands in the dispersion equation are not integrable in general, so we used the asymptotic expansion solution to analyze the behavior of the dispersion relation at the singularity and mapped the dispersion relation curves approximately the system composed of collisionless particles which obey maxwellian distribution or all kinds of degenerate distribution, even in their mixture system, their dispersion relation are analogous
一般來說,色散方程中的被積函數都是難以求積的,本文是用函數逼近法分析色散方程在奇點處的行為,並大致劃出色散關系曲線。由無碰撞粒子組成的系統,不管初始分佈是maxwell分佈還是各種簡並分佈,甚至是這些分佈的混合體,色散關系都是相似的。The present dissertation discusses two issues in the laser plasma interaction. in the first part, we introduce the basic concepts about laser plasma interaction and simulation, and give the simulation results concerning the influence on the propagation of the laser pulse in plasma, exerted by the spatial modulation on the surface of the preformed plasma
第一部分簡單介紹了激光等離子體相互作用物理與模擬的一些基本情況和基本概念,並模擬研究了靶表面等離子體的空間調制對激光傳播的影響,分析了等離子體溫度診斷問題及激光等離子體相互作用過程中粒子分佈函數的特徵。The number concentration of the activated cloud condensation nuclei ( ccn ) is described with the hypergeometric function
對降水物粒子引入分佈譜函數,採用了與之相適應的微物理過程計算公式。Here based on the kinetic theory, we have mainly discussed the distribution function of the component particles in qgp which is in quasi - equilibrium. our discussion can be divided into two aspects
Jtwa碩士學位論文w一步m僅盯e廠stiesis本篇論文的工作就是研究近平衡態下qgp成分粒子分佈函數的特性。The second aspect : from qgp kinetic equations with collision integrals, by using the relaxation time approximation, we calculate the distribution functions to the second order correction. we obtain the distribution functions for quarks ( and anti - quarks ) and gluons under perturbation of the fluctuation of the color field. then in the high - temperature - low - density area, we discuss the characteristics of the distribution functions, and use t hem to get the net baryon density and the energy density
第二,從有碰撞項的qgp動力論方程出發,忽略自旋,在色漲落擾動下,利用弛豫時間近似,得到夸克和膠子分佈函數的二級修正,通過數值分析重點討論了高溫低密情況下qgp中成分粒子分佈函數的特性,並且由分佈函數得到凈重子數密度和能量密度。These models require, in general, the rates of and energy released in nuclear reactions occurring in astrophysical environments
而這些模型需要巨量的數據輸入,其中主要的是天體核反應率(粒子運動速度的分佈函數與截面的卷積) 。分享友人