熱擴散分離 的英文怎麼說
中文拼音 [rèkuòsǎnfēnlí]
熱擴散分離
英文
thermal diffusion fractionating- 擴 : 動詞(擴大) expand; enlarge; extend
- 散 : 散動詞1. (由聚集而分離) break up; disperse 2. (散布) distribute; disseminate; give out 3. (排除) dispel; let out
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 離 : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
-
The voltage of lithium - intercalation reaction, impedance and structural stability of intercalation - type cathode material were analysed and calculated. theoritical results show that the reaction voltage depends on the content of lithium and the bond energy, and that the key ways to lower the electrode impedance are to increase the electronic conductivity of the electrode and the diffusion coefficient of lithium ion in the host and to decrease the size of powder. in addition, the thermal stability of lithium - insertion structure can be improved by using crystallographic co - lattice theory and doping treatment
本文從嵌入式陰極材料的嵌鋰反應的電壓、阻抗及結構穩定性的分析和理論計算著手,得到了電壓取決于基體中各種離子間的鍵能及鋰含量、降低電極阻抗的關鍵是提高電子型導電性和li ~ +在基體中的擴散系數及減小粉末粒度的理論依據及其利用晶體的共格原理和摻雜改性的方式來提高材料嵌鋰結構的熱穩定性的設計思路。The membrane properties were found to be dependent upon the content of styrene. the membrane physic - chemical properties compare to nafion 117 except that their chemical stability has to be further improved to make them acceptable for practical use in the proton exchange membrane fuel cell. the proton transport through the membrane follows the " liquid - like " proton conductivity mechanism y and the water balance is important for the working condition of the fuel cell
對磺化膜的研究分析表明:膜的性能參數如離子交換容量、吸水率、水合系數、形體穩定性、導電性能、化學與熱穩定性等依賴于膜中苯乙烯含量,且接枝苯乙烯相互間的位阻效應對膜性能影響很大;膜的性能可與nafion膜相比較;質子在膜中的傳導遵循「似液體」質子傳導機理;電滲析與擴散作用使膜保持水平衡。A solid - state shear compounding technology based on pan - milling ( s3c ) has established, by which the graphite with weakly combined structure are exfoliated and then compounded with pp at nanoscale. the obtained pp / graphite nanocomposites have greatly enhanced electrical and thermal conductivity. their structures and properties were characterized by analysis of particle size and distribution, sem, tem, xrd, the electrical conductivity, the thermal conductivity and heat - decomposition temperature etc. by taking advantages of the layered inorganic fillers with a weak interaction between layers ( e. g
磨盤碾磨剪切力場使pp分子鏈斷裂,相對分子質量減小,石墨的導熱和潤滑性能抑制pp的降解和粉碎,使pp / yep250 (膨脹石墨250倍)復合粉磨盤碾磨固相剪切復合技術及導電導熱pp /石墨納米復合材料的制備與性能體中, pp分子運動活性提高,結晶能力增強,為pp在熔融加工中進一步向己剝離的石墨片層間擴散,形成納米復合結構創造了條件。The mechanism of hydrothermal process has also been studied. under the hydrothermal conditions, a small quantity of cu2 + in solutions were carried to the copper lattice due to the diffusion and convection, then the cu2 + move to the positions of lattice defect. the crystallization reaction happened and copper powders got a good crystallinity and an excellent antioxidation
在穩定的水熱條件下,由於擴散、對流或強迫流動引起少部分溶解在溶液中的銅離子向銅晶體表面附近的區域輸運,在晶面某一位置上被吸附,並通過表面擴散,順著臺階運動到扭折位置,發生結晶反應。The condensation heat - exchange characteristic of a separate - type heat - pipe was studied on a 1 : 1 model. the heat pipe is heated by electricity, and working fluid is distilled water, and it is cooled by air. the experimental results show that, ( 1 ) when charging liquid ratio is 45 %, condensation heat - exchange coefficient reaches to maxium ; ( 2 ) when there is not non - condensing gas, the coeffcient decreases a little with the increase of vapour pressure, and it decreases by 9. 5 % when the pressure increases from 0. 16mpa to 0. 36mpa ; ( 3 ) when there is non - condensing gas, the coefficient decreases a little, but when the gas is discharged by an exhaust value, it can be improved, when the volume content of the gas is 2. 5 %, it can increased by 22 % ; ( 4 ) the effect of the non - condensing gas on the coefficient decreases with the increase of the pressure, and when the volume content of the gas is 5 % and the pressure increases from 0. 16mpa to 0. 36mpa, the coefficient increases by 6 %. the relative curves are given between condensation heat - exchange coefficient and air flowrate, charging liquid ratio and vapour pressure
建立了空氣冷卻實驗臺,熱管的加熱方式為電加熱,工質為蒸餾水.在1 1模型上對分離式熱管管內凝結換熱特性、不凝性氣體對凝結換熱的影響及不凝性氣體的擴散規律進行了試驗,得出分離式熱管有一最佳充液率,其值為45 %左右;凝結換熱系數隨著蒸汽壓力的增加略有降低,在實驗的壓力范圍內,降低了9 . 5 % ;不凝性氣體對分離式熱管的凝結換熱僅影響冷凝段下部較小部分,通過排氣閥排出不凝性氣體可有效地改善冷凝段下部的凝結換熱;隨著壓力的增加,不凝性氣體對分離式熱管冷凝段的影響減少.這些結論可用於分離式熱管換熱器的工程設計和控制Abstract : the condensation heat - exchange characteristic of a separate - type heat - pipe was studied on a 1 : 1 model. the heat pipe is heated by electricity, and working fluid is distilled water, and it is cooled by air. the experimental results show that, ( 1 ) when charging liquid ratio is 45 %, condensation heat - exchange coefficient reaches to maxium ; ( 2 ) when there is not non - condensing gas, the coeffcient decreases a little with the increase of vapour pressure, and it decreases by 9. 5 % when the pressure increases from 0. 16mpa to 0. 36mpa ; ( 3 ) when there is non - condensing gas, the coefficient decreases a little, but when the gas is discharged by an exhaust value, it can be improved, when the volume content of the gas is 2. 5 %, it can increased by 22 % ; ( 4 ) the effect of the non - condensing gas on the coefficient decreases with the increase of the pressure, and when the volume content of the gas is 5 % and the pressure increases from 0. 16mpa to 0. 36mpa, the coefficient increases by 6 %. the relative curves are given between condensation heat - exchange coefficient and air flowrate, charging liquid ratio and vapour pressure
文摘:建立了空氣冷卻實驗臺,熱管的加熱方式為電加熱,工質為蒸餾水.在1 1模型上對分離式熱管管內凝結換熱特性、不凝性氣體對凝結換熱的影響及不凝性氣體的擴散規律進行了試驗,得出分離式熱管有一最佳充液率,其值為45 %左右;凝結換熱系數隨著蒸汽壓力的增加略有降低,在實驗的壓力范圍內,降低了9 . 5 % ;不凝性氣體對分離式熱管的凝結換熱僅影響冷凝段下部較小部分,通過排氣閥排出不凝性氣體可有效地改善冷凝段下部的凝結換熱;隨著壓力的增加,不凝性氣體對分離式熱管冷凝段的影響減少.這些結論可用於分離式熱管換熱器的工程設計和控制Two sources of si were identified. one was from the sif62 - ions, which were formed by a reaction between the treatment solution and quartz substrate. the other was attributed to the diffusion of si from the surface of quartz substrate into tio2 thin film at 700 c or higher calcination temperatures
薄膜中的si元素來源於二部分,其中一部分來源於反應液與石英玻璃基片反應所生成的[ sif _ 6 ] ~ ( 2 - )離子,另一部分則來自於薄膜在高溫熱處理( 700或高於700 )過程中從石英玻璃表面擴散到薄膜中的si元素。Since the novel m41s mesoporous materials ( particularly mcm - 41 ) was firstly reported by mobil ' s researchers, much attention has been paid to this kind of materials. they have not only larger surface area, uniform pore structure and huge pore volume, which can reduce bottleneck phenomenon in molecular diffusion, but also higher mechanically and chemically stability as new inorganic materials. these materials have been widely used as catalysts, sorbents and separation materials as they were synthesized firstly
介孔材料作為一種新型功能材料,由於其具有較大的比表面積、長程有序的孔道結構、較大的孔容、良好的擴散性能和能夠減小分子擴散中的瓶頸效應等特點,以及作為無機材料所具有的機械和熱穩定性,所以自1992年mobil公司開發研製了以mcm - 41為代表的m41s系列介孔材料以來,被廣泛應用於催化、吸附和分離等領域。分享友人