initial vacuum 中文意思是什麼

initial vacuum 解釋
初始真空度
  • initial : adj 最初的，開始的；原始的；初期的，初發的。 the initial boiling point 【化學】初餾點〈第一滴餾物...
  • vacuum : n （pl vacuums vac ua ）1 真空；空處，空虛，空白。2 〈美口〉吸塵器（＝ vacuum cleaner）。vi vt 〈...
  1. It is found that if the cavity dissipation is losses and the reservoir is in vacuum, the quantum nonlocality appears periodically. when the cavity dissipation and the average photon number of the reservoir are taken into account, the initial quantum nonlocality will be lost. the rapidity of the loss of the initial quantum nonlocality depends on the amplitude of the initial field, the average photon number n and the cavity damping constant k

    結果表明，如果腔場無損耗且處于真空庫，則量子態周期性地顯現出一定的非局域性；如果考慮到腔場的損耗和熱庫的平均光子數，那麼，量子態將會喪失它初始的非局域性，初始量子非局域性喪失的速度與初始腔場的幅度、腔的衰減系數以及熱庫的平均光子數有關，場越強、平均光子數和衰減系數越大，量子非局域性喪失得就越快。
  2. In this thesis, we studied the effects of the initial field state and thermal environment on quantum nonlocality and purity in atom - field system, in which the field initially in the squeezed vacuum state and in the squeezed coherent state are considered respectively

    本文研究了光場初態和熱庫性質對原子?場耦合系統量子非局域性的影響，分別討論了腔場初始處于壓縮真空態和壓縮相干態兩種情形。
  3. Abstract : we have studied the spontaneous emission from a three - level atom with an external - driving field in a photonic crystal. as a result of quantum interference and photon localization, the population in the two upper levels displays quasi - oscillatory oroscillatory behavior. this depends on the initial atomic state and the relative positions of the two upper levels from the forbidden gap. the intensity and the phase of the external field can affect spontaneous emission from the atom. the properties are different from a three - level atom either in vacuum or in aphotonic crystal without an external driving field

    文摘:討論了在雙光子驅動場作用下，三能級原子在光子晶體中的自發發射問題.由於量子干涉和光的局域化作用，兩個上能級中的占據數將具有周期振蕩或準周期振蕩的性質，這不僅依賴于兩個上能級與禁帶的相對位置，同時也依賴于原子的初始狀態，而且還與驅動場的強度、驅動場的入射位相有關.這些性質既與真空中帶有驅動場的原子的自發發射性質不同，也有別于無驅動場作用下光子晶體中三能級原子的自發發射性質
  4. Test method for determining initial fractional filtration efficiency of a vacuum cleaner system

    測定真空吸塵器系統初始部分過濾效率的試驗方法
  5. Standard test method for determining initial, fractional, filtration efficiency of a vacuum cleaner system

    測定真空吸塵器系統初始部分過濾效率的標準試驗方法
  6. The results indicate that drying thickness, radiant temperature and pressure of drying chamber are the most three significant factors. there ' s hardly any relationship between freezing rate and drying time, the sublimation drying time of slow freezing material is shorter than quick freezing one, but its desorption drying time is relatively longer, so the total drying time is approximately the same. the initial freezing temperature and freezing manner has little influence on vacuum freeze drying process

    試驗表明：凍干厚度、加熱板溫度、系統的真空度是最重要的三個過程參數；凍結速率對總凍干時間沒有影響，慢凍物料的升華乾燥時間要比快凍物料短，但慢凍的解析時間相對較長，兩者的總凍干時間相差很小；初始凍結溫度對凍干過程的影響可以忽略。
  7. Finally, eels and aes were combined to study initial oxidation processes of uranium, niobium and uranium - niobium alloys in an ultra - high vacuum chamber at the temperature of 373k, 473k, 573k and 673k

    最後，還利用eels和aes研究了超高真空下不同溫度（ 373k 、 473k 、 573k和673k ）時鈾、鈮及鈾鈮合金的初始氧化過程。
  8. The state function for the interaction of a a - type three - level atom with two - mode squeezing vacuum field is derived in the paper. the influences of detuning 8 and initial squeezed light - field factor r on the cauchy - schwartz inequality, light squeezing and nonclassical properties are investigated

    本文還導出了雙模壓縮真空場與型三能級原子非共振相互作用系統的態函數，研究了場模失諧量和場的初始壓縮因子r對原子布居概率、光場壓縮和非經典特性的影響。
  9. The results show that the increase of vacuum energy can not expand the influence scope of vacuum degree obviously when vacuum degree under membrane is high. the vacuum degree in the pvds is higher than vacuum degree in the sand drains, and the vacuum degree in the sand drain is higher than vacuum degree in the silt at the same depth in the ground during the initial stage of pumping

    分析結果表明：當膜下真空度較高時，真空能量的增加不會明顯增大真空度的影響范圍；在抽真空的初期，一般在地基相同的深度處：塑排真空度砂井真空度淤泥真空度。
  10. Under an appropriate condition, the squeezed vacuum field can trap the two atoms in ri ). an analytical expression of emission spectrum for three - level atom interacted with two - mode cavity field is given. the effects of the initial state of system on the emission spectrum for three - level atom are explored

    我們給出了好腔中與雙模腔場相互作用的三能級原子發射譜的一般表達式，探討了系統初態對三能級原子發射譜的影響，闡明了只有原子和雙模驅動場初始時刻均處于相干疊加態，原子不同躍遷通道間的量子干涉才使得原子發射譜呈現相位敏感性。
  11. 3. by investigating the two - atom dipole amplitude - squared squeezing and two - mode second - power : h - squeezing in a system of a two - mode vacuum field interacting with two coupled atoms, the influences of the initial atomic coherence and dipole - dipole interaction on the two types of squeezing have been discussed. the relation between the two types of squeezing has also been revealed

    中文摘要3 .研究了雙模真空場與兩個禍合二能級原子相互作用系統的雙原子偶極振幅平方壓縮和雙模光場二次方h壓縮，探討了原子的初始相干性及原子間偶極相互作用對這兩種壓縮的影響，並揭示了原子偶極振幅平方壓縮和雙模光場的二次方h壓縮的聯系。
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