first excited state 中文意思是什麼
first excited state
解釋
第一激發態-
The neutron halo structure of the first excited state of i3c and the neutron - proton halo structure of the second excited state of 6li, which is the isobaric analog state of the ground state of 6he, were considered the most probable candidates to search for
前者的中子暈結構已為實驗所證實，後者是中子暈核~ 6he （基態）的同位旋相似態，其中子-質子暈結構至今尚未被實驗證實。 -
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。 -
The present work provides the first experimental evidence for the theoretical prediction that the second excited state of 6li is a neutron - proton halo state with an a cluster at its center
本論文第一次從實驗上證實了~ 6li第二激發態是一個以為核芯的中子-質子暈態的理論預言。 -
In the neon - filled franck - hertz experiment, the experimental value gravely deviates from the value of the first excited state because of the effect of highly excited state and bremsstrahlung
在充氖夫蘭克赫茲實驗中，由於高激發態和軔致輻射的影響使實驗值嚴重偏離第一激發態值。 -
This paper has studied the wavefunction expanded in terms of the two - dimensional harmonic oscillator eigenfunction through calculating the energy of the ground state, the energy of the first excited state and the oscillator strength in a square wire with finite barriers and studied its application in these fields. the most remarkable advantage of this wavefunction is that it can satisfy the continuity of the function and of its derivative divided by the band - mass and it is convenient to calculate some physical magnitudes because the number of the terms is small
本文通過計算有限深方形量子線中單電子的基態能、第一激發態能和振子強度研究了以二維諧振子本徵函數為基展開的波函數以及它在這些問題中的應用，此波函數的顯著優點是：在邊界處滿足波函數的連續性條件和粒子流的守恆條件，並且展開項數少，計算方便。 -
In this paper, the wavefunction is expanded in terms of the two - dimensional harmonic oscillator eigenfunction and the mismatch of the effective mass is considered. we calculate the energy of the ground state, the energy of the first excited state and the oscillator strength of the single electron in a square quantum wire with finite barriers
本文選取了以二維諧振子本徵函數為基展開的波函數，並且考慮了有效質量的失配性，計算了有限深方形量子線中單電子的基態能，激發態能和振子強度。 -
The results show that the contribution of direct capture is primary in the interested temperature range of astrophysics. toward the 12c ( n, y ) 13c reaction, our calculations are good agreement with a recent experiment at low energy. a obvious enhancement of the cross section of 12c ( n, y ) 13c first excited state has been found, and it supports that the first excited state 1 / 2 + of 13c is a neutron halo state which has been found experimentally by our department group
對于第一個核反應，我們計算了直接俘獲過程以及兩個共振態的俘獲截面和總截面，我們的計算結果顯示，在天體感興趣的溫度范圍內，直接俘獲過程對總截面的貢獻是主要的；對于第二個反應，我們的計算結果與已有的實驗結果符合的較好，其中~ （ 12 ） c （ n ， ） ~ （ 13 ） c的第一激發態計算結果顯示出截面有明顯增大，這從理論上支持了我所關于~ （ 13 ） c第一激發態具暈結構的實驗發現，這是國際上第一次在激發態中發現暈結構。 -
This dissertation has studied the structural model and model predictive control ( mpc ) algorithm that was first implemented for the structural vibration control of the tall building under earthquake excitation. based on analyzing structural motion equation and the state space form equation of the earthquake - excited structural model of the tall building, predictive model and control objective functions are defined and the mpc system of the tall building is set up
本文主要研究高層建築結構振動控制的結構模型和預測控制演算法，首次將預測控制應用到高層建築結構地震反應控制中，在分析受地震波激勵的高層建築結構模型的運動方程及其狀態空間形式方程的基礎上，確定預測模型和控制目標函數，建立高層建築結構預測控制系統，從理論上對預測控制在高層建築結構振動控制中的應用進行研究。
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