fragment density 中文意思是什麼
fragment density
解釋
破片密度-
The main simulation results were as follow : the average energy of electron decreases with the increasing pressure ; it decreases with the increasing methane concentration in the filling gas in the lower pressure range and increases in the higher pressure range ; the number density of fragment h and ch3 does not always increases with the gas pressure, but reaches an individual maximum ; energy carried by neutral dissociative fragment ch3 decreases with increasing gas pressure and ch4 concentration
主要結果如下：平均電子能量隨著反應室內氣壓的增加呈下降趨勢；在較低氣壓范圍內平均電子能量隨著反應源氣體中甲烷濃度的增加而減少；在較高氣壓范圍內平均電子能量則隨著甲烷濃度的增加而增加；隨著氣壓的增加碎片h和ch _ 3的數目並不是一直增加的，而是在不同的特定氣壓下出現各自的最值；碎片攜帶的能量基本隨甲烷濃度和氣壓的增加而減小。 -
The isospin effect and k production in intermediate and high energy heavy ion collisions ( hics ) are hot topics in the nuclear physics. based on the isospin - dependent quantum molecular dyanmics ( iqmd ) model and self - consistent relativistic boltzmann - uehling - uhlenbeck ( rbuu ) model, we have studied them and obtained some interesting results. as for the study of isospin in intermediate energy hics, we ' ve investigated how both stength ( q ) and density dependence of symmetry potential ( sp ) affect many measurable observables, such as the yield, phase - space, and isospin distributions of fragments, as well as the correlations between intermediate - mass - fragment ( imf ) multiplicity n and charged - particle multiplicity n, light - charged - particle ( lcp ) multiplicity n, and neutron multiplicity n,
在中能重離子碰撞的同位旋研究方面，分別研究了對稱勢的強度（ c _ s ）和其密度依賴形式對中能重離子核反應各類碎片產物產額、相空間、及其同位旋的分佈，中等質量碎片多重數（ n _ （ imf ） ）與帶電粒子多重數（ n _ c ） 、輕帶電粒子多重數（ n _ k ） 、中子多重數（ n _ n ）的關聯等多種實驗觀測量的影響，以獲取對稱勢中該兩方面的信息，尤其著重於研究如何分別獲取有關該兩方面的信息的途徑。 -
Abstract : according to the fragment warhead of the missile, we propose dynamic characteristic of fragment dispersion in different reference frames, calculate dynamic distributing density function in earth reference frame and missile reference frame, and point out the dispersion section of the warhead is different from the dynamic distributing density in earth reference frame and missile reference frame
文摘:以某型防空導彈的破片殺傷式戰斗部為例，分析了在不同坐標系中的破片動態飛散特性，分別計算出在地面坐標系和彈體坐標系中破片的動態飛散密度函數，指出在不同的坐標系中戰斗部的飛散區和飛散密度不同。
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