能級粒子數 的英文怎麼說

中文拼音 [néngjílìzishǔ]
能級粒子數 英文
energy level population
  • 能 : 能名詞（姓氏） a surname
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 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...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 粒子 : grain; granule
  1. The rotational levels of the ground vibrational level may be depopulated by radiation.

    基態振動能級的各轉動能級的粒子數可能因幅射而減少。
  2. Abstract : the effect of correction of self - consistent potential on electronic structure in simple cubic nanocrystal particles is calculated by means of the green ' s function method in the tight - binding approximation, taking only the nearest neighbor matrix elements into account. the numerical results show that the electronic energy spectrum is shifted, the chemical potential is not equal to the atomic energy level, the electronic density at each lattice point is changed, and the variation of electronic density at surface lattice point is the largest

    文摘:在緊束縛近似下，只計及最近鄰的矩陣元，採用格林函數計算了自洽勢修正對簡立方納米晶體顆粒的電子結構的影響，發現電子能譜發生了移動，化學勢不等於格點原子能級，各格點的電子密度也發生了變化，其中以表面格點的電子密度變化最大。
  3. The absorption of this radiation in various lines followed by cascade transitions to lower levels might ultimately produce an anomalously high population for the excited levels of these molecules.

    在各譜線處對這種輻射的吸收以及接著向低能級的級聯躍遷最終可能使這些分子的激發能級產生異常高的粒子數。
  4. A co2 laser with the optimized resonator is made and to be proved by experiments. this dissertation focus on the following problems : the kinetics process of the cvl and the co2 laser, the rate equations for the laser level population, electron temperature and electron density

    本文的重點是：闡述清楚銅蒸汽激光和二氧化碳激光的動力學過程，定量描述激光能級的粒子數速率方程、電子溫度和電子密度等速率方程
  5. The entropy or number of states of system or subsystem are closely related to interaction of particles and energy level distribution, therefore, to study the temperature dependence of the specific heat may supply some important and useful microscopic information which may play an important role in understanding electronic structure, density of state, phonon spectrum etc. the specific heat measurements at low temperatures also play important roles in the finding of the third law of thermodynamics, the quantum theory of solid and bcs theory for superconducting etc. moreover, specific heat measurements help us to understand the different kinds of phase transitions ( such as : structural phase transition, magnetic phase transition, superconducting phase transition etc. ) and the scaling behavior near the critical point

    系統、子系統的熵或微觀狀態數與微觀粒子間的相互作用及能級分佈密切相關，因此研究比熱與溫度的依賴關系能夠提供被測量系統許多極其有用的微觀信息，對理解固體的電子結構、電子態密度、聲子譜等起著十分重要的作用。低溫比熱的測量和研究對熱力學第三定律、固體量子理論和超導bcs等理論的建立起到了積極的推動作用。比熱研究還有助於認識各類相變如結構相變，磁性相變，超導相變等及臨界點附近的標度規律。
  6. Compared with the existing techniques for enhancing heat transfer by adding millimeter and / or micrometer - sized particles in fluids, nanofluids appear to be ideally suited for practical application with incurring little or no penalty in pressure drop because the nanoparticles are so small that the nanofiuid behaves like a pure fluid

    在液體中添迦納米粒子，可以顯著增加液體的導熱系數，提高熱交換系統的傳熱性能，而且由於納米粒子的小尺寸效應，其行為接近於液體分子，不會象毫米或微米級粒子易產生磨損或堵塞等不良結果。
  7. In section one, we analyze the mechanism of lwi gain, and study the effects of the rabi frequency q of the driving field, the injection rates ratio rb / r ~, the exit rate r0, the decay rates ~ and rab between atomic levels, as well as 3 incoherent pump rate r on the gain without inversion, dispersion and population difference of the system. in section two, we discuss the effects of the detuning of the driving field and the probe field on the gain

    在第一節中分析了無粒子數反轉激光增益產生的機制、研究了驅動場的rabi頻率、粒子注入速率比值r _ b / r _ c 、粒子退出速率r _ o 、能級間的自發衰減速率r _ （ c - b ） 、 r _ （ a - b ）和非相干泵浦速率r對增益、色散和粒子數差的影響；第二節討論了驅動場和探測場的失諧對無粒子數反轉激光增益的影響。
  8. In the second part of the thesis, the non - thermal phase transition in high energy collisions is studied in detail in the framework of random cascade model. the relation between the characteristic parameter xq of phase transition and the rank q of moment is obtained using monte carlo simulation, and the existence of two phases in self - similar cascading multiparticle systems is shown. the relation between the critical point qc of phase transition on the fluctuation parameter q is obtained and compared with the experimental results from na22

    文章第二部分中，我們用隨機級聯模型對高能碰撞中的非熱相變作了仔細研究，用montecarlo模擬得到了表徵相變的特徵參數_ q與矩階數q之間的關系，證實了自相似多粒子系統中存在兩相，求出了相變點q = q _ c對起伏參數的依賴關系，並和na22實驗結果進行了比較。
  9. But difficulty in maths will come forth when meeting high spin particles if we using such method. on base of the characteristic of energy space, we obtained the wavefunctions and geometric phase by the trial function method in this paper. the berry phase of the system are also obtained after an evolution period

    文中在絕熱近似下根據自旋粒子能級間隔特點用嘗試波函數法求出了旋轉磁場中高自旋粒子系統的波函數及幾何相位，解決了用一般方法求解時出現高階微分方程的困難。
  10. In chapter 2, we analyzed the effect of the driving field phase fluctuation on the gain and dispersion and population differences in an open v - type three - level non - inversion lasing system and then discussed the effects of the incoherent pumping rate, the ratio of the atomic injection rates, the atomic exit rate, the rabi frequency of the probe and driving fields and their corresponding detuning on the gain, dispersion and population differences of the system, and got some important conclusions different from those in closed or other open systems

    第二章討論了驅動場的相位漲落對開放的v型三能級無反轉激光系統的影響，根據解析解的數值計算結果討論了非相干泵浦速率、粒子注入速率之比、粒子退出速率、探測場和驅動場的rabi頻率和相應失諧對系統增益、色散和粒子數差的影響，得到了一些不同於封閉的v型系統及其他開放的無反轉激光系統的重要結論。
  11. The number of parameters that you can change, coupledwith some of the advanced features such as " super emitters " ( particleemitters that create other particle emitters automatically ), allow someof the most complex and realistic effects available anywhere

    有多少參數，你可以改變，再加上其他一些先進功能，如"超級排放大戶" （粒子排放造成其他粒子排放自動） ，讓一些最復雜的和現實的影響，可在任何地方。
  12. The second part is about co2 lasers. we first discuss the mechanisms of population inversion, including excitations and relaxations ( electron collision excitation, resonance transition excitation impacted by excited n2 molecules, the relaxation of both the lower - upper laser levels and the lowest level of co2 )

    首先，討論了二氧化碳激光粒子數的反轉機理，包括電子碰撞激勵、激發態n2分子等共振轉換激勵過程，激光上下能級co2 （ 00 1 ， 10 0 ）以及最低能級co2 （ 0110 ）的弛豫過程等幾個方面
  13. On the basis of photoelectronic dynamics, an energy model at room temperature that describes the cubic silver halide microcrystals not doped or doped with metal ion complex at deferent doping amounts is proposed, and then a series of differential equations describing the relationship between carriers number are set up

    本工作以光電子動力學理論為依據，建立了一種描述純鹵化銀微晶及摻有不同濃度金屬離子絡合物的鹵化銀立方體微晶在室溫下的能級模型，由此生成了一組描述粒子數關系的微分方程。
  14. Drawing the following concludes : ( 1 ) for the different metallic small particles with even number or odd number, the heat capacity is varied. the result is different from the bulk metal in essence. at the low temperature, the distribution of the discrete energy levels has important effects on the heat capacity ; at the high temperature, the distribution of the discrete energy levels has little effects because of the involving of mass electrons into the energy distribution

    得到如下結論： （ 1 ）金屬小粒子所含的電子數奇偶性不同，其電子熱容是不同的，這與大塊金屬有本質區別；低溫極限時電子熱容受能級分佈的影響很大；而在高溫時，有大量的電子參與能量配位，比熱遵循大塊金屬的線性規律，能級分佈的影響小時。
  15. 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。
  16. And based on the intra - nuclear cascade model, the p - seu cross sections of some devices are calculated. after comparison with the result published and experimental data, it showed that it is a very good choice using intra - nuclear cascade model to simulate protons " nuclear reaction. and the result of protons transport is just fitted with the one calculated by lahet ; the p - seu cross sections calculated are in good agreement with the experimental data

    經比較和分析發現，用核內級聯模型模擬質子的核反應，在入射質子的能量很高（ 50mev ）時與文獻和實驗結果吻合得非常好；所計算的高能質子在硅材料中的輸運結果，與lahet程序的計算結果基本符合；所計算的質子在硅器件中的單粒子效應，與文獻和實驗數據符合得非常好。
  17. The difference at low temperature and the concordance at high temperature still appear. analysis is made and all the results are shown in the form of graph. the result shows the tendency of the critical temperature ' s changing to the given particle number, when the quantum effect is major, is more slow than that got by the integral method

    並利用所得能級找出了相互作用系統中粒子的狀態分佈、相互作用對激發態占據數的影響、不同作用下基態占據與溫度的關系以及相互作用對系統轉變溫度的影響，然後用圖形表現出有相互作用時和無相互作用時所得結果的區別。
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