離子化常數 的英文怎麼說
中文拼音 [lízihuàchángshǔ]
離子化常數
英文
ionization constant-
By home analyzing the experiment result, we think that the covalent bond is more than the electrovalent bond in y - fe _ ( 2 ) o _ ( 3 ) crystallites. it is the dominating reason that the dependence of y - fe _ ( 2 ) o _ ( 3 ) crystallites grin size on lattice constant is differ from one of the ionic crystallites
通過對實驗結果的進一步分析,我們認為其主要原因是在丫一fezo3中原子之間結合的共價性超過了離子性,因而導致了它們的晶格常數隨晶粒線度的變化趨勢和離子晶體正好相反。By film thickness measured, fourier transformed infrared spectrometer ( ftir ) analysis, x - ray photoelectron spectroscopy ( xps ) analysis and relative irradiance measurement, the effect of microwave input powers on deposition rates, f / c ratios, bonding configurations of ct - c : f films and the radicals in plasma originating from source gases dissociation is analyzed
由於微波功率的改變會導致等離子體中電子溫度和等離子體密度發生變化,從而造成不同的源氣體分解過程,結果微波功率的升高導致了薄膜沉積速率的提高、 f / c比的降低,同時也導致薄膜中cf和cf _ 3基團密度的降低,而保持cf _ 2基團密度接近常數。According to the law of mass action, the law of mass conservation and the principles of chemical thermodynamics, mathematics model about components " modes of occurrence ( that is simple ions, complex anions and complex compounds ) and their concentration in dam foundation solution has been set up with balance constant method
本文根據質量作用定律、質量守恆定律和化學熱力學的基本原理,應用平衡常數法建立了地下水水質組份存在形式(即單一離子、絡陰離子和絡合物)及其濃度分佈的數學模型。Part i this paper has minutely studied the interaction between ag ( i ) and serum albumin. the binding of ag ( i ) to human serum albumin ( hsa ) or bovine serum albumin ( bsa ) has been studied by equilibrium dialysis at ph ( 5. 4 ). the scatchard analysis indicates that there exists several strong binding sites of ag ( i ) in both hsa and bsa. a notable hysteretic effect has been observed in the interaction of ag ( i ) with hsa or bsa using uv - visible spectrometry at ph ( 5. 4 ), which shows that the binding between ag ( i ) with hsa or bsa may induce a slow transition of hsa or bsa from the conformation of weaker affinity for ag ( i ) to one of stronger affinity ( a - b transition ). the rate constants and activation parameters of this transition parameters of this tansition were measured and discussed. the binding equilibrium has been also studied by resonance light - scattering spectrum ( rls ) and flurescence quenching
第一部分:等離子點ph ( 5 . 4 )條件下,用平衡透析法和紫外光譜,熒光光譜,共振散射光譜研究了ag ( )與人血清白蛋白( humanserumalbumin ,簡稱hsa )或牛血清白蛋白( bovineserumalbumin ,簡稱bsa )的結合。 scatchard圖分析表明, ag ( )在hsa或bsa中有強弱兩類結合部位,通過計算機擬合獲得結合的逐級穩定常數值。紫外掃描發現ag ( )與hsa或bsa的結合存在滯後效應,表明ag ( )與hsa或bsa的結合可能誘導蛋白質構象發生緩慢變化( a - b ) ,測得並討論了這一構象變化的速度常數和活化參數。The paper puts forward the clustering algorithm includes : clustering based on grid and iterative, enhanced clustering algorithm base on density and k - medoids, enhanced k - means algorithm ( optimize chooseing consult _ points in iterative process ), enhanced clustering algorithm base on distance. they can overcome many limitations ( some traditional algorithms terminate in local optimization. many results of cluster are roundness, too many times in partition iterative process ), which are related to the static architecture of traditional model
在傳統聚類演算法的基礎上,結合我們科學數據挖掘的應用對象?分子動力學數據,提出了迭代網格聚類演算法, k -平均和基於密度結合的聚類演算法,迭代過程中優化選擇中心點的k -平均方法,以及改進型的基於距離的聚類演算法等模式識別方法,能夠解決傳統演算法帶來的諸多問題(比如一些傳統的聚類演算法常常收斂于局部最優,發現都模式都趨近於球形,劃分方法中迭代次數過多帶來的效率問題) 。In young chickens aev induces paralysis, ataxia and muscular dystrophy, while in older chickens, infection is usually subclinical, resulting in a decline in egg production and hatchability. infectivity was shown to remain unaffected by chloroform, low ph, pepsin, trypsin and deoxyribonuclease. magnesium cations were shown to stabilise preparations of the virus against heat inactivation. the buoyant density of virions are 1. 31g / ml. the diameter of the virion was estimated to be 22 to 30nm. the aev can be adapted to grow in chicken embryo. the inability of aev to grow effeciently in most cell cultures
幼雞感染該病毒后,引起麻痹、頭頸震顫甚至共濟失調,而成雞常呈亞臨床感染或導致產蛋量和孵化率下降。病毒的感染性不受氯仿、低ph 、胃蛋白酶、胰酶和脫氧核糖核酸酶的影響,鎂離子可增強病毒對熱的穩定性,病毒的浮密度為1 . 31g ml ,直徑為22 - 30nm ,該病毒主要在雞胚中增殖,在大多數細胞培養物中不生長。The investigation of structure by x - ray diffraction shows that crystal parameters changes clearly when percenting ca and la into pbtio _ 3, it was caused by the ca ion and la ion replaced the pb ion of a position in perovskite compound, that bring lattice mismatch and asymmetrical replace
在pbtio _ 3中摻入la和ca可以有效改變薄膜的晶格常數,這是因為在abo _ 3型化合物中,鈣離子、鑭離子取代了a位的鉛離子,造成晶格失配和不對稱取代。In this work, un - doped and nano sic doped mgb2 / fe tapes and wires were fabricated by the powder in tube ( pit ) technique, and the short samples were synthesized through two different routes of the traditional vacuum sintering and the sparking plasma sintering ( sps ). the sintering parameters were optimized in both sintering methods
本文採用粉末套管法( powderintube )原位( in - situ )制備了非摻雜和納米sic摻雜的mgb2 / fe超導線帶材,分別採用常規真空燒結和放電等離子燒結( sps )兩種方式合成mgb2超導相,優化了燒結工藝參數。It is indicated by quantum chemistry calculation that dissociation energy of ti, c and si is 108kj / mol, 499. 7 kj / mol and 626. 1 kj / mol, respectively, coincided well with the experimental ones found in literatures
量子化學計算表明其離解能分別為108kj mol 、 499 . 7kj mol和626 . 1kj mol ,與文獻報道的試驗值吻合。離解能數據及速率常數的計算均證明ti的離解較為容易。On the base of analysis of hydrologic geology from aquifer distribution, boundary conditions and dynamic characters etc. in the research area, the paper sums up the hydrologic geologic condition, builds up the conceptual model of groundwater resource evaluation and presents 2d calculation model, as well as numeric solution and computing flow chart. after introducing general solutions of mathematic models and implementation method of rectangular grid, the paper realizes the automatic technique of spatial dispersion rectangular grid of evaluation models based on gis. finally, the paper fulfills the integration of gis with groundwater resource evaluation models from gis - based basic management information, spatio - temporal dispersion of models, definition of subprogram and visual evaluation of parameters, as well as models simulation etc., and visualizes the results of evaluation models
論文以地下水超采?地下水降落漏斗?地面沉降現象較為嚴重的常州、武進地區作為研究評價區域,在對評價區域的含水層分佈、邊界條件和動態特徵等水文地質條件分析的基礎上,概化了其水文地質條件,構建了相應的地下水資源評價概念模型與數學模型,並給出其數值解法和相應的計算流程;論文在介紹數學模型的兩種常用數值解法和模型空間離散的矩形網格生成技術的基礎上,實現了基於gis的評價模型空間離散矩形網格的自動生成;最後,論文從基於gis的評價模型基本信息管理、模型空間時間離散方法、子程序包與模型計算參數可視化賦值、模型的擬合等方面實現了gis與評價區域的地下水資源評價模型的集成,並將模型評價結果可視化。The results showed that the mic was controlled by three factors ( the content of ag ~, the proportion of surface and the status of crystal ) at normal temperature with which matched m = amoexp ( - kc ~ 3. it also showed that when the ag ~ was on the powder ' s surface, the anti - bacterial capacity of power was controlled by the action of cell death. 4 ) the toxicological test the toxicological properties of the powders, which was prepared in different route, was tested
建立了抗菌粉體的抗菌機制:粉體的最小抑菌濃度由銀離子含量、粉體比表面積和二氧化鈦的結晶狀況三種因素控制,它們遵循m am _ 0exp ( - kc _ ( ag ) )關系;當粉體表面的銀離子過量時,粉體的抗菌能力受細胞死亡反應控制,為一級反應,粉體的抗菌能力越強,細菌的死亡速率常數越小。Several influence factors to result plasma drift in hainan were analyzed. in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained, the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm, that a layer with very strong electron density and density grad was found during the recovery phase of the storm, its horizontal scale is beyond 100km and temporal scale is about 2 hours, this phenomena repeated 3 times continuously. a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found
本文較為系統地給出了海南地區電離層的參數變化特徵,特別是得到了一些暴時與以往不同的季節特性;第一次給出了海南地區的電離層等離子體漂移特徵,發現等離子體漂移暴時擾動在三個方向上有內在的聯系,得到了電場變化曲線;研究結果還表明海南電離層的半厚指數和形狀參數等與國際參考電離層iri - 2001存在很大差別;通過對強磁擾動事件期間的參數變化特性分析發現,在磁暴恢復相期間海南地區電離層底部存在一個電子密度非常大的高密度區,高密度區底部電子密度梯度隨高度急劇增加,該區域的水平尺度可達100公里以上時間尺度約為2小時,連續出現過三次,這是一個在海南從來未發現的新現象;研究還發現了暴時東亞地區電離層擾動會出現高低緯負相而中緯正相的現象。Cubic nitride boron ( c - bn ) films have been prepared at room temperature ( 25 ) by radio frequency plasma enhanced pulsed laser deposition ( rf - pepld ), assisted with substrate negative bias. in this paper, we primarily studied the effect of laser energy density, radio frequency power, substrate bias and depositing time on the growth of c - bn films, and analyzed the formation process and mechanism of c - bn films deposited by rf - pepld method at room temperature
本文採用偏壓輔助射頻等離子體增強脈沖激光沉積( rf - pepld )方法在常溫下( 25 )制備立方氮化硼( c - bn )薄膜,初步研究了薄膜沉積參數:激光能量密度、射頻功率、基底負偏壓和鍍膜時間對立方氮化硼薄膜生長的影響,並分析了常溫下用rf - pepld方法沉積立方氮化硼薄膜的形成過程和機理。From the concentration dependence of bsa apparent diffusion coefficients, protein interaction parameters have been regressed. it bears a net effective charge of - 9. 0 and has a hamaker constant of 2. 8ket
根據擴散系數隨蛋白濃度變化的斜率與離子濃度變化的相關性,回歸出了蛋白相互作用參數,蛋白所帶的有效電荷zp二一9 . oe 、 hamaker常量= 2Abstract : the working principle, structure and parameters design of plasma arc generator for heat treatment are described. experiment has shown that it has good effect on partial surface hardening
文摘:論述了用於金屬材料表面熱處理的等離子弧發生器的工作原理、結構特點和參數設計。試驗證明這種發生器對材料的表面局部硬化非常有效。Moreover, the longitudinal piece is higher twist ( suppressed by a factor i / a / 2 ). the dipole cross section is largely unknown, only at small distance p it can be expressed in terms of gluon density
偶極截面只有在小距離時才能表示成膠子密度的函數,在整個范圍內求解偶極截面,需要解非常復雜的演化方程,目前是不能做到的。A theoretical binding - energy difference can be obtained using an electrostatic model that has been applied to other ionic components [ 25 ] and values from the literature for the madelung constants [ 26 ] and c60 polarizability [ 27 ]. [ p9872l ]
結合能的差異理論上可以從適用於其它離子成分[ 25 ]的靜電模型估算出來,這里需要的數據是文獻中的馬德隆能常數[ 26 ]和c60的極化率[ 27 ] [ p9872l ] 。The chemical reactions in the flame area are very complex. it is very difficult to measure the number density distribution of the particles ( atoms, ions and molecules ), so the relative intensity method is employed
由於固體推進劑燃燒區內發生的化學反應非常復雜,直接測量火焰區內的粒子(原子、離子以及分子等)數密度比較困難,因此選用相對強度法來進行計算。In this paper, we first investigate the impurity effect ( ba2 + ) on the dielectric and phase transition properties in srtio3 within the framework of the transverse - field ising model ( tim ). then a possible coupling mechanism between the magnetism and dielectric properties in eutio3 is discussed and the magnetic influence on the frequency of the soft - phonon mode is investigated via the heisenberg model, soft - mode theory under the mean field approximation, the second quantization theory and the perturbation theory. and we proceed further investigation on eu1 - xbaxtio3 of
我們發現baxeul _ xtio3 ( o 『 x 『 0 . 2 )的介電常數和由內察的偏置場導致的電極化除了隨雜質濃度產生相應的變化,同時在磁和介電性質的藕合作用影響下在低溫下偏離通常的量子順電體行為,在尼爾溫度附近出現異常,且磁場通過對最近鄰自旋關聯的作用來影響介電常數和電極化。Henan road technologies limited is a pure chemical production of fine chemicals mainly to study the high - tech enterprises, is the production of carbon jimiji surface - active agents, and conventional carbon surface active agent than its spot, more pro - oil base, a number of lower - level critical jiaoshu concentrations may increase as the number of levels of reactive surface in the extremely low concentrations of an outstanding performance, and some anions and surface active agent hunrong without precipitation
河南省道純化工技術有限公司是一家以研究生產精細化學品為主的高新技術企業,現生產多種吉米奇陽離子表面活性劑,與常規陽離子表面活性劑相比,其親水、親油基更多,可成數量級降低臨界膠束濃度,可成數量級提高表面活性,在極低濃度下即具有優異的性能,並可和部分陰離子表面活性劑混溶而不沉澱。分享友人