macroscopic particle 中文意思是什麼

macroscopic particle 解釋
宏觀粒子
  • macroscopic : adj. 【物理學】肉眼可見的;宏觀的，粗視的，粗顯的。
  • particle : n 1 顆粒，微粒；微量，極少量。2 【物、數】粒子，質點。3 【語法】虛詞，不變詞〈冠詞、副詞、介詞、...
  1. Inorganic nanoparticle is a particle with smaller characteristic latitudinal dimension than 1 00nm, being a substance between macroscopic solid and sub - stable immediate of molecule

    無機納米粒子是特徵緯度尺寸在納米數量級的粒子，是一種介於宏觀固體和分子的亞穩中間態物質。
  2. It is the main purpose of this paper to calculate the energy splitting of ground state and excited states induced by thermally assisted quantum tunneling. first, a brief introduction is given for the theoretical and experimental studies on the magnetic macroscopic quantum effects. then, spin tunneling in a uniaxial ferromagnetic particle in transverse magnetic field is converted to a pseudoparticle moving in effective double - well potential with the help of the effective potential description of quantum spin systems developed by ulyanov and zaslavskii. finally using the periodic instanton method we evaluate the transition amplitude, energy shift and prefactor of wkb exponential and the energy splitting of ground state and the tunneling rate for excited states induced by thermally assisted quantum tunneling are obtained

    文章首先對磁性宏觀量子效應的理論和實驗方面作了簡單介紹，然後藉助于ulyanov和zaslavskii發展的一種等效勢描述方法，把外磁場沿難磁化軸方向時的自旋隧穿約化成在等效雙勢阱中運動的粒子，利用瞬子方法給出基態能級劈裂，最後利用周期瞬子方法分別計算了隧穿幅、能級移動以及wkb前因子，從而給出由於熱助量子隧穿引起的激發態的隧穿率。
  3. The proposed model - beam - particle model is validated to simulate some routine tests of concrete which including uniaxial compressive test and uniaxial tensile test to prove that the numerical model can effectively to describe the complete failure process caused by the initiation, propagation and coalescence of cracks. the influence of the meso - mechanical properties to the macroscopic failure behavior is discussed in this paper. the proposed model is employed to simulate the dynamic failure process of concrete under impact loading, and analyse the failure behavior of concrete with different impacting velocity

    本文建立了混凝土的梁-顆粒數值模型，並利用該模型進行了混凝土在單軸壓縮和拉伸載荷作用下，混凝土從微裂紋的萌生、擴展、貫通直到宏觀裂紋產生導致破壞的全過程的數值模擬，探討了混凝土材料細觀結構對其宏觀力學行為的影響；利用該數值模型，模擬了鋼彈以一定的初始速率垂直侵徹混凝土圓板的動態過程，對計算結果進行了動畫顯示，並分析了不同鋼彈初始速率對混凝土圓板破壞形式的影響。
  4. For the transition induced by the asymmetric perturbations is double - direction, the particle number in the core state is always less half of the total particle number. so, from the point of view of average over time, it is a coexisting state of rotating and without rotating that is formed. this state which is in the josephson tunneling regime of the macroscopic quantum tunneling is a quantum self - trapping state

    由於不對稱的微擾引起的躍遷是雙向的，使得核心態上的粒子數總是少於總粒子數的一半，因此從時間平均的角度看，形成的是旋轉的和不旋轉的態共存的狀態，而且處于宏觀量子隧穿的約瑟夫森隧穿區域中，是量子自束縛狀態。
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