vacuum energy 中文意思是什麼

vacuum energy 解釋
真空能量
  • 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 〈...
  • energy : n. 1. 干勁，活力。2. （語言、行為等的）生動。3. 〈pl. 〉 （個人的）精力；能力。4. 【物理學】能，能量。
  1. Vacuum contactor and its ability of energy - saving

    真空接觸器及其節能
  2. In quantum chromodynamics ( qcd ), vacuum is not trivial, that is, vacuum carry quantum numbers. such a behavior is embodied by non - perturbative con - densates of quarks and gluons. since hadrons are excitations with respect to the vacuum, hadronic properties are ultimately related to properties of the vacuum. based on the vacuum structure, some hadron properties have been described well. in the low energy region, qcd has two very important proper - ties : chiral symmetry spontaneous breaking and confinement, which are closely related to the vacuum characteristics of qcd. much experiments and theoretical studies have shown that chiral symmetry spontaneous breaking is very important to understand the low - energy feature of the strongly interacting physics, and the quark condensates give an expression to chiral symmetry spontaneous breaking. according to goldstone ' s theorem, the goldstone bosons with zero mass will emerge as the chiral symmetry is spontaneously broken. there are two ways : inear and non - linear methods to carry out this constraint. in our paper, we will use the non - linear method

    大量實驗和理論研究表明，手征對稱自發破缺對于理解低能強相互作用十分重要，而夸克凝聚又是導致手征對稱自發破缺的因素。按goldstone理論，伴隨手征對稱自發破缺應該會有零質量的goldstonebosons產生。而對于這一條件的實現有線性和非線性兩種方法本文將用非線性的方法將手征對稱自發破缺應用於su （ 3 ）模型即重子八重態，得出描述其強相互作用的手征對稱自發破缺lagrange密度。
  3. Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )

    本研究以武裝直升飛機防護裝甲材料為研究對象，採用真空熱壓粉末冶金燒結工藝制備了含sic顆粒體積分數分別為5 、 15和25的sic顆粒增強鋁基復合材料，結合其力學性能、掃描電鏡和界面微區能譜分析結果，分析了sic _ p al復合材料的真空燒結過程中的界面現象，以及材料增強和斷裂機理，並利用hopkinson高速壓桿沖擊實驗系統對其從靜態到動態（應變率為3 . 3 10 ~ （ - 3 ） s ~ （ - 1 ） 5 . 2 10 ~ 3s ~ （ - 1 ） ）的壓縮破壞響應進行了研究，分析了不同體積分數sic _ p al復合材料高應變率壓縮載荷下，材料的變形和微觀損傷機理，以及利用高速沖擊空氣炮測定了改復合材料制備剃度復合板的穿透性能。
  4. The surface energy of mica cleaved in vacuum is about ten times that of mica cleaved in air.

    在真空中剖開的雲母的表面能比在空氣中剖開的雲母的表面能大十倍左右。
  5. With the aid of baffle movement, a technique named masking pretreatment and the method of vacuum deposition have been used to fabricate the ag - o - cs photoemissive thin films with internal field - assisted structure for the first time. the internal field - assisted photoemission characteristics of ag - o - cs thin films show that the photoelectric sensitivity is increased when the internal electric field is applied to the thin films, which indicates that the electric field has been effectively provided to the thin films by the above - mentioned internal field - assisted structure. such an enhanced photoemission is attributed to the variations in energy - band structure of ag - o - cs thin films, and which are considered to induce the lower - energy electrons to participate in the photoemission

    通過掩膜預處理和擋板轉移技術的配合，利用真空沉積方法首次制備了內場助結構ag - o - cs光電發射薄膜。 ag - o - cs薄膜內場助光電發射特性測試結果表明，該方法能夠有效地實現ag - o - cs薄膜體內電場的加載與表面電極的引出，薄膜光電靈敏度隨內場偏壓的增大而上升。 ag - o - cs薄膜在內場作用下的光電發射增強現象與薄膜體內能帶結構變化低能電子參與光電發射等物理機制有關。
  6. A very interesting physical interpretation of the dark energy can be obtained as a vacuum energy, from the following line of reasoning

    最有趣的看法是黑暗能量來自真空能量，且讓我細細道來。
  7. The huge energy - momentum of particles can be transformed into thermal energy by accelerator experiment at high energy to study perturbative vacuum of quantum chromodynamics and determine the signal of quark - gluon plasma

    在實驗上，人們通過相對論性重離子碰撞實驗把巨大的動能轉化為熱能，來研究量子色動力學的微擾真空及其所預言的夸克?膠子等離子體。
  8. Vacuum phase - transition and the energy mechanism of quasars

    真空相變與類星體的能源機制
  9. A specific vacuum tube which converts light into electrical energy

    把光轉換成電能的一種真空管。
  10. The product of electric furnace fittings including : micro - computer program temperature control instrument 、 refractory brick ( ultra - light weight energy saving brick ) 、 resistance wire 、 electroheat belts 、 electrical heat tube 、 silicon carbide rod 、 furnace bottom plate 、 muffle tank 、 vacuum sealed fan 、 wind wheel 、 axis 、 substructure 、 bin seat 、 flat shape plate 、 box 、 panel 、 weatherstrip plate 、 return air plate 、 bin 、 connection box 、 educe rod 、 thermocouple 、 thyristor 、 porcelain pipe 、 crucible 、 furnace chamber 、 furnace frame 、 charging bin 、 substructure 、 pit furnace cover lifter framework ( sole design ) and otherwise

    電爐配件產品包括：微電腦程序控溫儀、耐火磚（超輕質節能磚） 、電阻絲、電阻帶、電熱管、硅碳棒、爐底板、馬弗罐、真空密封風機、風葉、軸、底座、料筐座、扁形板、箱體、面板、擋風板、回風板、料筐、爐柵、接線盒、引出棒、熱電偶、可控硅、瓷管、坩堝、爐膛、爐門、爐框、裝料筐、底座、井式爐蓋升降機構（獨家設計）等。
  11. The leading candidate to explain dark energy ' s effects is vacuum energy, which is mathematically equivalent to the cosmological constant that einstein invented in 1917

    要解釋暗能量效應的首選，便是真空能量，它與愛因斯坦在1917年所創的宇宙常數，在數學上是等價的。
  12. If the vacuum energy density were really that high, all matter in the universe would instantly fly apart and galaxies would never have formed

    要是真空能量的密度真的如此之大，宇宙中所有的物質早就被稀釋不見，更別提會形成星系了。
  13. The casimir energy can be considered as the polarization of the vacuum energy of quantized fields due to the distortion caused by the presence of boundaries, curvature of the space - time manifold or some background fields

    Casimir能量本質上是由於邊界的出現、時空的彎曲或是某些背景場的存在而引起的量子場真空能量。
  14. Although it is possible that new attempts to estimate the vacuum energy density may yield just the right amount to explain cosmic acceleration, many theorists believe that a correct calculation, incorporating a new symmetry principle, will lead to the conclusion that the energy associated with the quantum vacuum is zero. ( even quantum nothingness weighs nothing

    雖然新的估算有可能得到能解釋加速膨脹現象的真空能量密度，但多數科學家相信，經過正確的計算再配上新的對稱性原理，得到的量子真空能量將會是零（量子真空亦是空） 。
  15. Therefore the vacuum energy cannot be set to zero and it ought to be included as a source for gravitation, where it acts like the cosmological constant

    換言之，不可以把真空能量視為零，這種能量可視為一種引力源。特別的是，這種引力就好像液體一樣有負壓強，產生的排斥力相類于宇宙常數。
  16. Because there is more than one parameter, we should actually think of this vacuum energy curve as one slice through a complex, multidimensional mountain range, which leonard susskind of stanford university has described as the landscape of string theory [ see middle illustration on page 85 ]

    因為參數不只一個，我們實際上應把這個真空能量曲線想像成是一個復雜、多維度山脈的剖面，美國史丹佛大學的色斯金將此描述成弦論地景（請見73頁能量地形的中圖） 。
  17. 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。
  18. Secondly, it is consistent with the hope that the ultimate vacuum energy might actually be zero, and that we simply haven t relaxed all the way to the vacuum as yet

    此外，把真空能量重新假設為零亦符合不少科學家的祈望，除非事非必要，我們仍不想放棄對真空的傳統理解。
  19. The increase of vacuum energy can not accelerate the surface settlement when the flow is small

    在出水量已較少的情況下，增加真空能量並不能加快地表的沉降速率。
  20. These three local minima differ by virtue of whether the resulting vacuum energy is positive, negative or zero

    我們可以使用真空能量是正、負或零，來區分這三個局部最小值。
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