valence state 中文意思是什麼
valence state
解釋
價態-
When it is in this condition, the atom is said to be in a valence state.
當它處于這種狀態時，這個原子就可說是處于價態。 -
A model of the interface state density distribution near by valence band is presented, and the dependence of the threshold voltage on temperature, the c - v characteristics and the subthreshold characteristics are predicted exactly with this model ; the effects of s / d series resistance on the output characteristics, transfer characteristics and effective mobility of sic pmosfets are analyzed. thirdly, the output characteristics and the drain breakdown characteristics are modeled with the procedure medici. the output characteristics in the room temperature and 300 ? are simulated, and the effects of gate voltage. contact resistance, interface state and other factors on sic pmos drain breakdown characteristics are analyzed
提出了一個價帶附近的界面態分佈模型，用該模型較好地描述了sicpmos器件閾值電壓隨溫度的變化關系、 c - v特性曲線以及亞閾特性曲線；分析了源漏寄生電阻對sicpmos器件輸出特性、轉移特性以及有效遷移率的影響；論文中用模擬軟體medici模擬了sicpmos器件的輸出特性和漏擊穿特性，分別模擬了室溫下和300時sicpmos器件的輸出特性，分析了柵電壓、接觸電阻、界面態以及其他因素對sicpmos擊穿特性的影響。 -
The degrees of crystallinity of pure ptfe under the different conditions of water cooling, air cooling and furnace - varying cooling were made comparison by xrd. the thermal stability of pure ptfe and solid lubricant was analyzed by dsc - tg ; the composition and valence state of elements in the surface of carbon fiber, solid lubricant before and after friction test and lubricant transfer film were characterized by xps ; the frictional property of solid lubricant was tested by pin and disk test rig. the frictional wear property of solid lubricant between embedded bearing sleeve and steel axle friction pair ring was tested by special simulate test machine, the hardness of solid lubricant was tested by pm ; the compression strength of solid lubricant was tested by material test machine
用sem表徵原料微觀結構、摩擦表面及潤滑轉移膜表面形貌：用xrd進行原料物相分析，及比較水冷卻、空氣冷卻、隨爐冷卻三種工藝條件下的純聚四氟乙烯樹脂的結晶度；用dsc - tg分析純聚四氟乙烯樹脂及固體潤滑劑的熱穩定性；用xps表徵碳纖維表面、固體潤滑劑摩擦前後表面、潤滑轉移膜表面的元素組成、價態變化；用銷盤式摩擦磨損試驗機對固體潤滑劑進行摩擦性能測試；採用專用的臺架模擬試驗機對固體潤滑劑鑲嵌軸承套與鋼軸摩擦副間的摩擦磨損性能進行測定；用萊次偏光顯微鏡（ pm ）測試固體潤滑劑的硬度；用材料試驗機測試固體潤滑劑的抗壓強度等。 -
These methods and techniques include techniques for sieving and inspection of 1 : 200000 regional geochemical anomalies, geogas survey, active state survey of metals, extraction and measurement of valence state gold, electric and new attempts at botanogeochemical survey
這里包括1 : 20萬區域化探異常篩選與查證的方法技術，地氣測量方法、金屬活動態測量方法、價態金提取與測量方法、電提取方法及植物地球化學測量方法的新探索等。 -
Meanwhile, the ancs are 1. 16 + 0. 10 fin - 1 / 2, 1. 34 + 0. 12 fm - 1 / 2 and 0. 94 + 0. 08 fm - 1 / 2 ; rms radii are 3. 16 + 0. 32 fm, 4. 01 + 0. 61 fin and 5. 64 + 0. 90 fin ; and the probabilities of valence neutrons outside the potentials are 19. 9 %, 53. 6 % and 66. 8 % for the ground state, the second and third excited states of 12b, respectively
2 。結果證實13c的第一激發態為單中子暈核態，首次從實驗上證實在b穩定線上存在激發的暈核態。同時得到12b基態、第二和第三激發態anc系數分別為1 -
The alloy structure has been shown by x - ray powder diffraction. x - ray photoelectron spectroscopic data have confirmed that the nickel and cobalt in the bimetallic nanoclusters is in the zero - valence state and alloy state, respectively
利用差熱分析、紅外光譜、 x射線粉末衍射和透射電子顯微鏡對反應的氧化過程、結晶過程和產物的結構與形貌進行了表徵。 -
Abstract : in this work, atom structure features of rare earth elements have been analyzed. reasons why changeable valence rare earth oxide can strengthen stability of atom valence in oxidized state, ability to conserve oxygen and heat stability for catalysts are discussed from mechanism. auxiliary catalyst functions are understood more deeply on the base theory
文摘:本文從原子結構分析了變價稀土元素原子的結構特點，從機理上分析了變價稀土氧化物對催化劑原子氧化價的穩定性、貯氧能力和熱穩定性等性能增強的根源，從理論上深入認識了稀土氧化物的助催化作用。
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