activation energy 中文意思是什麼

activation energy 解釋
活化能（分子開始反應所需最低能量，為活化分子能量與所有分子平均能量差）
  • 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. Catalysts that lower markedly the activation energy of the reactions are required.

    需要顯著降低反應活化能的催化劑。
  2. In the orthorhombic phase, the desorption activation energy has an obvious increase with the increase of temperature, while it varies smoothly in the tetragonal phase as the temperature increases

    當樣品為正交相時，脫附活化能隨著溫度的升高明顯增加，而四方相時則變化比較平緩。
  3. A reliability experiment of thermal aging was carried out for the two types of joints, scanning electron microscopy, energy dispersive x - ray spectrometer and micro x - ray diffractomer were adopted to investigate the interfacial evolution behavior of joints, and kinetics model of imc formation was established. the results show that imc growth follows the parabolic law as a function of aging time at certain aging temperature, imc growth is more sensitive to the aging temperature than the aging time, the activation energy of cu - al imc growth is 97. 1kj / mol and the major forming cu - al imc are cual2 and cu9al4, the activation energy of au - al imc growth is 40. 1kj / mol and the main au - al imc are au4al and au5al2, with au2al and aual at the interfacial periphery of joints, the rate of cu - al imc growth is about 1000 times slower than that of au - al imc, and kirkendall voids and cracks are easily appeared during thermal aging in gold ball bonds while voids and cracks are absent in copper ball bonds even after aging at 200 for 2900 hours and 250 for 169 hours

    研究結果表明:金屬間化合物厚度與老化時間的關系符合拋物線法則，金屬間化合物的生長對老化溫度比老化時間更加敏感; cu - al金屬間化合物生長的激活能為97 . 1kj / mol ，老化后金屬間化合物呈層狀分佈，主要相為cual2和cu9al4 ; au - al金屬間化合物生長的激活能為40 . 1kj / mol ，主要相為au4al和au5al2 ，同時在界面周邊區域生成了au2al和aual ;老化過程中cu - al金屬間化合物生長速率比au - al金屬間化合物生長速率小103數量級;金絲球鍵合點200老化96小時出現了明顯的kirkendall空洞和裂紋，但銅絲球鍵合點200老化2900小時和250老化169小時都沒有形成空洞和裂紋。
  4. The measurement of oxygen desorption activation energy by thermogravimetry ( tg ) and differential thermogravimetry ( dtg ) curves with different heating rates shows clear evidences that the behavior of tg, dtg, and desorption activation energy have some relations with the oxygen stoichiometry of the specimeri when temperature changes from 500c to 800c

    採用多升溫速率熱重法得到的tg 、 dtg數據計算yba _ 2cu _ 3o _ （ 7 - x ）的氧脫附活化能。實驗表明，當溫度在500 - 800范圍變化時， tg 、 dtg的變化行為及脫附活化能明顯的和樣品的氧含量有關。
  5. Short excited state lifetime and low activation energy for reactions in the excited states leave little room for manipulating the diastereomeric transition state when the photochemical reactions occur in solution

    最新的研究表明，採用含手性空間或經手性修飾的微環境可以使光化學反應的立體選擇性大大提高。
  6. Study on combustion kinetics of partial gasified coal char by using distributed activation energy model

    部分氣化煤焦燃燒動力學的活化能分佈模型研究
  7. 3. based jellification dynamics theory that the larger the jellification activation energy, the greater the lubricant ' s jelling tendency, it is advisable to analysis the whole jellification process in attempt to find out maximum jellification activation energy emax and its ambient temperature tmax, as a ground for judging the lubricant ' s pumpability

    根據凝膠動力學理論，凝膠活化能越大，潤滑油的凝固趨勢越大，因此對潤滑油應分析其凝膠全過程，從中找出最大凝膠活化能emax以及開始出現最大活化能的溫度tmax ，作為潤滑油低溫可泵性判據。
  8. The results show that the dynamic elastic modulus, loss modulus and complex viscosity of the nanocomposite are higher than those of pp, while the loss factor is lower, that the complex viscosity of the nanocomposites is more sensitive to temperature, and that the flow activation energy and the crystallization temperature increase respectively by 15 % and 10k as compared with pp, which may contribute to the enhanced interfacial interaction between pp and ommt resulting from the addition of tmpp

    結果表明：與純聚丙烯相比，納米復合材料具有較高的動態彈性模量、損耗模量和復合粘度，力學損耗因子則降低，納米復合材料的復合粘度對溫度的敏感性略高於聚丙烯；界面改性劑的加入增強了有機蒙脫土與聚丙烯的界面作用，與聚丙烯相比，納米復合材料的流動活化能提高約15 % ，結晶峰溫度提高10k左右。
  9. The association chain implied is general reactivity, delocalization, heat of reaction, activation energy, velocity constant.

    和該量有牽連的因素是一般活性，離域作用，反應熱，活化能，速度常數。
  10. Tendency of spontaneous combustion of coal based on activation energy

    基於活化能的煤自燃傾向性研究
  11. Enzymes enhance reaction rates by lowering the activation energy

    酶可以使反應的活化能降低從而加快反應速率。
  12. Study on spontaneous combustion period of coal based on activation energy index

    基於活化能指標的煤的自然發火期研究
  13. A new method of measuring activation energy of amorphous alloy

    測量鐵磁非晶合金激活能的新方法
  14. The apparent activation energy of jd and ty materials are 162 - 174kj / mol and 208 - 235 kj / mol, respectively

    由線性回歸分析計算出jd材料的燒結激活能為162 174kj mol ， ty材料的燒結激活能為208 235kj mol 。
  15. But the activation energy of water quenching samples are very different at different aging temperature, the lowest is 1. 27ev and the highest is 2. 4 lev

    而水淬試樣在不同的時效溫度下激活能計算的結果有很大的不同，激活能最低為1 . 27ev ，最高為2 . 4lev 。
  16. The activation energy of the tpl peak is calculated being about 1. 5 ev for four heat treated samples ( furnace cooling, air cooling, dry ice quenching, liquid nitrogen quenching ), and it is near the self diffuse activation energy of aluminum 1. 45ev

    爐冷、空冷、乾冰冷和液氮冷四種熱處理制度根據幾，峰峰溫數據計算的激活能的結果約為1 ? sev ，接近於鋁的自擴散激活能1 . 45ev 。
  17. Because modified arrhenius formula considers the effect of temperature variation to activation energy, by the proposed methods, propellant storage life can be predicted more accurately, compared with arrhenius method which considers activation energy as a constant

    由於修正的阿倫尼斯公式考慮了溫度變化對活化能的影響，所以與將活化能看成常數的阿倫尼斯方法相比，文中方法可以更準確地預測固體推進劑的貯存壽命。
  18. This article confirmed the grafting efficiency of starch grafted to acrylic acid and the structure of starch and its grafted matter through the separation, purification and analysis tests to the grafted copolymer and the grafted forked - chain matter produced from the process of this reaction ; and deduced the formula of the velocity of such reaction mentioned above with a calculated result of the apparent activation energy in this reaction by the curve showing the relationship among the consistency of starch, monomer and initiator and the velocity of the grafting copolymerization

    摘要對澱粉接枝丙烯酸所得接枝共聚物及接枝側鏈物進行分離提純和分析測試，確定了其接枝效率並表徵了澱粉及其接枝物的形態結構；通過分別測定接枝共聚反應速率與澱粉、單體、引發劑濃度的關系曲線，確定了該接枝共聚反應的速率關系式；推算出了反應的表觀活化能。
  19. The activation energy and pre - exponential factor for pyrolysis of the residues were estimated from the kinetic models for first order parallel reactions

    研究表明：木質素是木質纖維素類熱裂解產生焦碳的主要來源。
  20. The kinetics of homogeneous precipitation was studied, the activation energy was about 100. 19kj / mol, and reaction index was 1. 42

    經穩定態假設處理后，得到沉澱反應的表觀活化能為100 . 19kj mol ，硝酸鈷的反應級數為1 . 42 。
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