晶核化作用 的英文怎麼說

中文拼音 [jīnghéhuàzuòyòng]
晶核化作用 英文
crystal nucleation
  • 晶 : Ⅰ形容詞（光亮） brilliant; glittering Ⅱ名詞1. （水晶） quartz; （rock） crystal 2. （晶體） any crystalline substance
  • 核 : 核構詞成分。
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 核化 : core
  1. For electrodeposition by dc methods, the metals deposite uninterrupted and the particles were also embeded uninterrupted into the coatings ; for electrodeposition by pc method, the particles with biggish volume were desorbed from the coatings and returned to the electrolyte again owing to the presence of pulse interval ; for electrodeposition by prc method, the particles carried positive charges are much more easy to desorb from the coatings owing to the effecf of reverse pulse current combined with pulse interval, in addition, the reverse pulse current also could dissovle the metals, further accelerates the desorption of particles, thus the particles size embeded in the coatings by prc method is the least

    直流電沉積時，基質金屬的沉積連續進行，粒子在電極表面不間斷嵌入鍍層;單脈沖電沉積由於脈沖間歇的存在使得具有較大體積的粒子會脫附，重新回到溶液中;採用周期換向脈沖時，反向脈沖電流使表面荷正電的較大的粒子更易從電極表面脫附，同時，反向脈沖電流對基質金屬的溶解作用，也會促進粒子的脫附，因此鍍層中復合粒子尺寸最小。隨著鍍層中粒子復合量的增加，三種鍍層的晶粒都明顯細化，說明al _ 2o _ 3的存在阻止了晶粒的長大，提高了電沉積過程中晶核的形成速率。
  2. The influence of the cloud droplet spectrum character and the spectrum growth and change is considered, which does not use a cut - off value for conversion from cloud water into rain water process. in the continuous coalescence equation, the particles fall velocity difference is not moved out from the integral, but is integrated in the equation as the function of diameter d to avoid the error of using particles average fall velocity. in the new scheme, generation rate of graupel due to the collection of snow by graupel and the collection of cloud ice by graupel are included

    雲中凝結核ccn的數濃度採用超幾何函數表示；雲水向雨水的自動轉換過程採用grabowski （ 1999 ）的公式，考慮了雲滴譜的特徵和發展變化對該過程的影響，而不是採用原方案給定閾值的方法描述該過程；對連續碰並方程不再將粒子落速差作為常量提出積分號外，而是直接作為粒子直徑函數在積分號內求解，這樣處理可以迴避使用粒子群的平均落速帶來的誤差；增加了霰和雪、霰和冰晶的碰並微物理過程。
  3. Through the analyzing the macro - structure to micro - structure, the author considers that retarding mechanism of citric acid is that citric acid and ca in the gypsum form the complexant ion, and hinder the crystallization center of dihydrate crystal bigger ; that of sodium tripolyphosphate is that it combined with ca, hinders the dissolve of hemihydrate. formation and growth of crystallization center ; that of bone glue is the glue - protection and chemical absorption action of active group, which also retards the formation and growth of crystallization center

    通過宏觀到微觀的分析，筆者認為，檸檬酸的緩凝作用的原因主要在於檸檬酸與鈣形成絡合離子，影響了二水石膏晶體的晶核長大過程；多聚磷酸鈉與鈣形成某種復鹽，對于石膏晶體的溶解、成核和長大過程均有強烈的阻礙影響；骨膠則在於膠體對半水石膏的包裹和活性基團的化學吸附，使二水石膏晶體的成核和長大困難。
  4. Quartz core zones : mineralisation occurs in enclaves of albitisation around the core of the pegmatite. tantalite crystals are large and randomly distributed

    石英核心帶：礦化作用存在於被納長石礦包圍的偉晶巖核心。鉭鐵礦呈現巨大而不規則分佈。
  5. The results from x - ray diffraction demonstrated that pp / mmtome was a fully intercalated nanocomposite, pp / mmtom and pp / ommt were partly intercalated nanocomposites, but the intercalation effect of pp / mmtom nanocomposite was better ; the crystallization characteristics of pure pp and pp / mmt nanocomposites were investigated by dsc, waxd and pom. the result of these testing showed that mmt nano - layers acted as nucleating agents for the crystallization of pp, the addition of mmt had effect on the crystallization process, leading the increasing of crystallization temperature crystallization rate and crystallinity, but also the dimension of spherulite reduced. but the formation of pp crystal did n ' t change, the formation of pp crystal in three pp / mmt nanocomposites and pure pp were a - form on the whole ; influences of three sorts of mmt on mechanical properties of pp / mmt nanocomposites were studied, as a result, the addition of mmt comprehensively improved mechanical properties of pp : notched impact strength, tensile strength and flexural properties were all increasing, but the extent of increasing were n ' t large

    通過xrd分析比較這三種pp mmt納米復合材料微觀結構得到， pp mmt _ （ ome ）屬于完全插層， pp mmt _ （ om ）與pp ommt的插層程度相近，但是pp mmt _ （ om ）相對較好；通過對純pp和三種pp mmt納米復合材料的結晶性能研究發現，蒙脫土納米片層對pp結晶產生明顯的異相成核作用，結晶能力增強，使pp的結晶溫度和結晶速率提高，結晶度增加，球晶晶粒細化，但是沒有改變pp的結晶形態，三種pp mmt納米復合材料的結晶形態都屬于晶；通過對pp mmt納米復合材料的力學性能測試得知，蒙脫土的加入全面提高了pp的力學性能，缺口沖擊強度、拉伸強度和彎曲性能都有一定程度的提高，浙江{ _業大學碩十學位論文摘要但是提高幅度都不是很大，不過ommt 、 mmtom和mmtc ） me三種蒙脫土對pp力學性能有著不同的改性作用，其中pp / mmtom最好， pp月邊mto崛次之， pp / ommt最低，這種情況主要是由蒙脫土對pp結晶性能的影響和蒙脫土的納米改性作用造成的。
  6. By increasing the h2 dilution ratio, it is found that atomic hydrogen can selectively etch amorphous phase and stabilize crystalline phase. from the study on the distance from substrate to catalyzer, choosing a proper distance can ensure the gas fully decomposed, while a relatively low substrate temperature can cause the nanocrystalline particles to lose mobility and keep their sizes. the pre - carbonization process can enhance the nucleation density and make the growth of high quality nanocrystalline p - sic films much easier

    實驗結果表明：隨著工作氣壓的減小，薄膜的晶粒尺寸有所減小；通過提高氫氣稀釋度，利用原子氫在成膜過程中起的刻蝕作用，可以穩定結晶相併去除雜相；選擇適當的熱絲距離能保證反應氣體充分分解，又使襯底具有較高的過冷度，是形成納米薄膜的重要條件；採用分步碳化法可以提高形核密度，有利於獲得高質量的納米- sic薄膜；襯底施加負偏壓可以明顯提高襯底表面的基團的活性，因負偏壓產生的離子轟擊還能造成高的表面缺陷密度，形成更多的形核位置。
  7. The gel c - s - h has the trend to crystallizing and transforming into low crystallized hydrates, which were similar to tobermorite. the incorporation of mineral mixtures improves greatly the orientation of ch either in interface zone or matrix zone and the crystal sizes also become small

    由於礦物摻合料的晶核作用、填充密實和二次水化作用，明顯改善了界面過渡區和基體中ch的擇優取向，並且不論是在界面區還是基體中，結晶相的晶粒尺寸都發生了明顯的細化。
  8. The paper works out the ice crystal spectrum distributing in the different macroscopic and micro - backgroud of the cloud ( ie, the thickness, the temperature and the supersaturation with respect to ice of the nucleation layer ). this paper also works out the amount of catalyst which is allowed in the cloud nucleation layer according to the different quantity of the supercooled water, the density of the supersaturation of the vapor with respect to ice. simultaneously, the paper discusses the i nfluence of remaining time when seeding artificial ice nucleus in the different ascending - velocity and altitude, and elicits the proper seeding altitude of the catalyst

    以此解為依據，得出了不同均流時，人工引入冰核在核化層存留時間，再以此時間作為人工冰核凝華增長時間，求出不同的雲宏微觀背景（如核化層厚度、溫度、冰面過飽和度等）下的冰晶譜分佈，經和實際資料比對符合相當好。進而求出核化層中不同過冷水量、冰面過飽和水汽密度下雲核化層可允許的催化用量。同時討論了不同升速，不同高度引入人工冰核時對其存留時間的影響。
  9. Abstract : based on the ahievement of epitaxial growth in several perovskite oxide films, we discuss the importance of substrate temperature ( ts ) and substrate material in the epitaxial growth of perovskite oxide thin films. influences of ts on growth orientation and epitaxial threshold temperature were observed. the results indicate that during the growth of the oxide films the phase formation and growth dynamics should be taken into consideration. the threshold temperature for epitaxial growth depends on the substrate materials. this demonstrates the influence of substrate material on the initial nucleation and epitaxial growth

    文摘:在成功地外延生長超導、鐵電、鐵磁等多種性質的鈣鈦礦結構氧化物薄膜的基礎上，討論影響氧化物薄膜外延生長的一些因素.考慮到相形成和薄膜生長動力學，在利用脈沖激光淀積法外延生長氧化物薄膜中襯底溫度是十分重要的工藝參數.襯底溫度對成相和生長薄膜的取向都有影響.考慮到薄膜是首先在襯底表面成核、成相併生長.因此襯底材料晶格的影響是不容忽視的.觀察到襯底材料對薄膜外延生長溫度的影響.在適當的工藝條件下，利用低溫三步法工藝制備得到有很強織構的外延薄膜.這突出表明界面層的相互作用對鈣鈦礦結構薄膜的取向有著相當大的影響
  10. Based on the cavitation in the melt generated by ultrasound, the mechanism by which the tiny insoluble particles were activated and became active solidification nuclei was discussed, and fine grains were obtained

    基於超聲波對熔體產生的空化效應，討論了熔體中微粒超聲活化成為結晶核心，促進形核和細化晶粒的作用機制。
  11. The wxrd characterization showed that o - mmt possessed obvious nucleation effect on the crystallization process of b - pp. jeziorny and mo methods were used to study the non - isothermal crystallization process. the obtained value of kinetics parameters such as tp, n, zc, t1 / 2, a h, f ( t ), e showed that the o - mmt has nucleation effect in crystallization of pp and can increases the crystallization temperature of pp, quickens the crystall ization velocity, decreases the crystallization activation energy of pp but decreases the crystallization degree of pp at the same time

    運用jeziorny法和mo法研究了聚丙烯和復合材料的非等溫結晶過程，所得到的非等溫結晶過程動力學參數t _ p ， n ， z _ c ， t _ （ 1 / 2 ） ， h ， f （ t ） ， e的數值表明，有機蒙脫土的加入可以起到異相成核的作用，從而提高pp的結晶溫度，加快pp的結晶速率，降低pp的結晶活化能，但同時也會降低pp的結晶度。
  12. Based on the liquid crystal polymer theory, two kinds of polyacrylates were synthesized by choosing biphenyl group as rigid nucleus of mesophase group and six methylene chain as flexible spacing group. an important chiral additive was synthesized by choosing l ( - ) ~ 2 - octanol as chiral group. mixture was made of the additive and liquid crystalline polymer, which structure was identified by ftit, " ii nmr, dsc and pom

    本論文根據液晶分子結構理論，選擇聯苯基作為介晶基元的剛性核、柔性的六亞甲基脂肪鏈為柔性間隔基，與丙烯酸反應，合成了兩種丙烯酸酯型聚合物；以拆分的l （ - ） 2 -辛醇為手性基團合成了一種液晶手性添加劑，並將所合成的手性添加劑與液晶聚合物共混，採用ftit 、 ~ 1h - nmr 、 dsc 、 pom等手段對合成的化合物、共混物進行了表徵。
  13. Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system

    該系統可通過沉積參數的精確控制，以控制沉積過程，減少金剛石膜生長過程中的缺陷，並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程；利用微波對材料的選擇加熱特性，通過構造等效方程，並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中，建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型，為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備，並對基片加熱材料進行了設計和優選，以獲取大面積均勻的溫度場區，甚至獲得大於基片臺尺寸的均勻溫度區；作為研究重點之一，開展了微波等離體化學氣相沉積金剛石的成核與生長研究，系統地研究了在（ 100 ）單晶硅基片上mpcvd沉積金剛石膜的實驗過程中，基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響，分別用raman光譜、 x射線衍射（ xrd ） 、掃描電鏡（ sem ） 、紅外透射光譜（ ir ） 、原子力顯微鏡（ afm ）對薄膜進行了表徵，確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。
  14. The hardware circuit and software of the portable copying instrument is researched. a feasible structure scheme is put forward according to the desired function, at89c51 single chip computer is used as the core of the instrument, zlg7289a and many kinds of new type circuit chip ( including : parallel data memory - ds1245, sms0823 lcd ) are used as interface during hardware circuit designing, the printer ' s port and rs232 communication interface is also designed

    硬體電路以at89c51單片機為核心，以zlg7289a按鍵組集成晶元作為人機介面，並採用新型電路晶元（包括大容量并行數據存儲器ds1245 、液晶顯示器sms0823 ）設計手持抄錄器的硬體電路，並設計了手持抄錄器的印表機介面和rs232通信介面，從而簡化了電路，減小了手持抄錄器的體積，按鍵的軟體實現過程。
  15. Tempering can cause the boundary of main phase more straight and regular, and the quantity of micro - particles in the grain boundary will increase and these particles nail the neighbor boundaries. the co - effect of these factors improved the cocercivity of magnets

    時效使主相晶界平直規整，從而使反磁化疇難以形核；同時，晶界中的微粒相數量增多，這些微粒相強化了對晶界相的釘扎作用。
  16. This system is developed based on high performance, low cost and many controllers inside of the embedded processor, and enlarged gpio for the plat of the hardware and software. this system is applied to the high - speed numerical control carving machine. show the operate interface by lcd, input the control code from the keyboard, the data is readed from the usb interface and store that in sdram

    本系統應用於高速數控雕刻機，以lcd為人機可視化操作界面，以編碼鍵盤為操作控制部分，以嵌入式處理器s3c44b0x晶元為核心，文件數據經usb口讀取u盤中的雕刻數據文件暫存於sdram中，經嵌入式處理器進行相關演算法處理，得出相應參數傳送到fpga ，由fpga控制輸出脈沖和脈沖間延時，通過高速光耦隔離（ 2mbit / s ）后輸出，控制步進電機的運轉。
  17. The focus is about the char device driver design used in the dvb receiving card and the drive development process in user space ; analyzing the dvb receiving system working principle and process under linux and providing a method to load the linux dvb receive card device drive into the linux kernel ; analyzing and implementing the firmware design of saa7146 chipset working with linux kernel and working characteristic in vrious working mode ; analyzing and implementing the frontend drive programing of the digital tv receive system ; realized the qam demodulation and the mpeg stream filter, so that the output stream can be used to playing on pc better. and this article designs an event management mechanism based on the mhp, which improve the linux dvb software system

    重點研究了數字電視接收卡的字元設備驅動問題，闡述了用戶空間開發驅動程序的過程;分析了linux下數字電視接收系統的工作原理和驅動程序開發過程，給出了linuxdvbapi接收卡設備驅動程序加載到linux內核中的方法;研究實現了saa7146晶元配合linux內核共同工作的固件設計和不同工作模式下的工作特性;研究實現了dvb接收系統中前端驅動程序的編寫;設計實現了qam解調和mpeg流解復用，使輸出傳輸流較好地用於pc播放;同時，本文所設計的一種符合mhp規范的中間件事件管理機制，優化了linuxdvb軟體系統。
  18. It was the first time that the silica nanoparticles was coated with gd2o3 : eu rare - earth oxides, then the core - shell structure compound particles were obtained. the characterizations showed that the thickness of uniform coating is in 10 - 20nm ; the silica core is linked with the gd2o3 : eu shell by chemical bond si - o - gd ; because of the size effects and interface effects of nano - crystal coating, the diffraction and emission peaks become broadened. and at the same time, the transfer temperature of silica from amorphous to crystal is decreased

    首次在納米sio2表面包覆一層gd2o3 : eu稀土復合氧化物，得到了核-殼結構的復合顆粒，表徵結果表明，均勻包覆層的厚度為10 - 20nm ； sio2核和gd2o3 : eu殼層物質之間通過化學鍵si - o - gd鍵的作用結合在一起；由於包覆層納米晶的尺寸效應和界面效應使xrd衍射峰和熒光光譜發射峰出現了寬化現象。
  19. Finally, it briefly discusses the feasibility, the applying foreground and the approach with regard to the calculating method about the amount of catalyst provided in this paper by integrating the ascending - velocity field and cloud water field in the possible working section abstracted from the mm5 mesoscale model with the thickness of the ice crystal particles in nucleation layer and supercooled water quantity which is surveyed by the plane

    得出適合的催化劑引入高度等。最後，簡要討論了用mm5中尺度區域模式提取可能作業區的升速場和雲水量場，並結合飛機實測核化層冰晶粒子濃度、過冷水量等，探討了本文提出的催化劑用量計算方法的可行性，應用前景和途徑。
  20. The value of f ( t ) of nancomposites was larger than that of hope, indicating that the crystallization rate of nanocomposite was faster than that o

    蒙脫土和pe - g - mah的加入降低了pe的結晶活化能，起到了異相成核作用。
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