核晶作用 的英文怎麼說
中文拼音 [héjīngzuòyòng]
核晶作用
英文
nucleaction-
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。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。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。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。To search proteins that associate with the mouse mint protein and regulate notch signaling in nuclei, and to study the function and mechanism of mint - mediated transcription repression, yeast two - hybrid assay was used to screen proteins that interact with a fragment of mint ( f5, amino acids 2226 - 2959 ). from 4x106 yeast clones transformed with the bait plasmid and a cdna library of 9 dpc mouse embryo, fifty - one were positive for nutritional screening and p - galactosidase assay. restriction digestion identified 10 independent positive clones and these were analyzed by dna sequencing these clones represent 3 correctly fused cdna fragments, which are mint, alpha a - crystallin - binding protein i ( alphaa - crybpl ), and nuclear receptor co - repressor 1 ( n - corl ), respectively
鑒于mwt基因編碼區較長,共有10799個堿基,故此我們將mint分為六段,分別命名為fi一f6 ,本研究以其中的f5 ( 222e959 )和f6 ( 296s576 )片段為研究對象,將h者分別插入pgb盯7載體中,結果顯示: mintfs可與核受體輔助抑制因子1階cori ) , o晶狀體蛋白結合蛋白1hlphatcrybp入及mw加互作用,而f6可與igm的重鏈恆定區、泛素結合酶2l6和一個未知功能的新的蛋白基因進行結合。The microtube zno econtrollable growth on the glass substrate, which was previously deposited, of zno hollow spheres was researched. the results showed that zno hollow spheres acted as crystal nucleus of zno microtubes. by this method regular zno microtubes were synthesised. the growth of microtubes can be controlled by change the size of zno hollow spheres
結果發現zno中空球層對zno微米管的生長起到了晶核的作用,能夠在玻璃襯底上形成形貌規則的zno微米管;改變zno中空球的粒徑能夠改變所形成的zno微米管的尺寸,從而實現了對zno微米管的可控生長。This has an important meaning to the industrial manufacture. dsc, waxd and polarizing microscope with hot stage experiments were performed to describe what led the ssp rate acceleration of pet / mmt. it was shown that montmorillonite acted as a very good nucleating agent in pet crystallization process, which results in the lower crystallinity, more small microlites, and more surfaces of microlites
為研究pet mmt固相縮聚效率提高的原因,通過熱臺偏光顯微鏡、 dsc 、 x -射線衍射等手段對樣品的結晶進行觀察與分析研究,結果表明蒙脫土對pet的結晶有明顯的成核作用,使其晶核生成速率迅速提高,晶核數量明顯增多,從而使整個結晶過程的時間變短,同時形成了更多結構不完善的微晶體。From the analysis of the microstructure of the modified epf30r, it indicated that the crystallinity, crystalline size, and the dimension of the filler particles of. the ppbc3b were all inferior to the epf30r ' s, which also verified the effect of the nucleator - dicpk
對改性epf30r的微觀結構分析結果表明ppbc3b的結晶度、晶體大小、所用填充粒子大小都要低於epf30r及相關材料,同時證實了成核劑dicpk的成核作用。The main circuit is consisted of 18 thyristors circuit and protection circuit. with the help of control subsystem, it can get the output of low frequency voltage ( current ) with the shape of sine wave ; the core of the control subsystem is the cpu of 87c196kc, and the synchronization circuit, the pulse - widen circuit, and the power - enlarged circuit form the accessorial subsystem of the control system. it possesses all the functions of digital triggering, digital tuning, analog / digital conversion ; the input transfer can isolate the input and output ; and the circumfluence reactor can reduce the circumfluence
主迴路採用由18個晶閘管組成的三相零式電路,並輔以晶閘管的保護電路,通過控制可以得到低頻正弦波的電壓(電流)輸出;控制迴路主要以87c196kccpu為核心,其外圍電路包括同步電路,脈沖拓寬電路,功率放大驅動電路等,完成了數字觸發、數字調節、模數轉換等功能;進線電源變壓器具有變壓和隔離作用;環流電抗器則實現了有效抑制主迴路瞬時脈動環流的功能。Hardware circuit adopts c8051f005 singlechip as key part, and uses integrated monolithic chip l297 and l298 to realize chopper drive of stepper motor. and achieves the control of the transfusion rate and quantum through controlling the rotate speed and number of the step motor by keyset
硬體電路採用c8051f005單片機作為控制核心,利用集成晶元l297和l298對步進電機實現斬波驅動,通過按鍵控制步進電機的轉速和轉數實現對輸液速度和輸液量控制。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。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。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。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。The best content of nanometer caco3 is 10 part by weight ( pbw ) ; light caco3 have no ditinct toughening and reinforcing effect in nanocrystal pvc / pvc / light caco3 composite. nanocrystal pvc promotes the form of claster crystal that induce t he improvement of property of pvc by sem test
輕質caco _ 3沒有明顯的增韌增強作用,僅起到降低成本的作用; sem照片顯示納米晶pvc促進了基體中細小串珠狀晶區的形成,表明納米晶pvc具有成核作用,可以提高體系的力學性能。In hardware design, an integrated multi - center a / d chip is for input signal conversion, cpld and arm empu are the core of fault diagnosis system and information processing. host computer is connected with the system through network technology - which owns certain advantages such as wide range of input signal, powerful processing ability and low power consumption ; also it can be extended as a remote portable terminal
在硬體設計上,採用集成多通道a / d轉換晶元完成輸入信號的轉換,使用大規模可編程邏輯器件和高性能嵌入式處理器作為故障診斷系統控制和信息處理的核心,採用網路技術實現診斷系統與主機的連接,系統具有前端輸入信號范圍寬,處理能力強,功耗低,可擴展為遠程診斷系統便攜式終端等優點。By analyzing of the potentiostatic transients, the diffusion coefficient d of the depositing nickel ions and saturated nucleus number density nsat were estimated, the effects of applied potential on nucleation and growth ware also discussed
通過分析恆電位暫態曲線,求出鎳離子的擴散系數d ,以及不同外加電位下的飽和晶核數密度n _ ( sat ) ,探討了外加電位對成核作用的影響。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。The results show that, core - shell impact modifier can act as nucleation agent, which can increase the crystallinity of nylon 11 blend alloy
實驗結果顯示,核-殼沖擊改性劑具有成核劑的作用,有助於共混體系結晶度的提高。分享友人