表觀動力學 的英文怎麼說
中文拼音 [biǎoguāndònglìxué]
表觀動力學
英文
apparent kinetics- 表 : Ⅰ名詞1 (外面;外表) outside; surface; external 2 (中表親戚) the relationship between the child...
- 觀 : 觀名詞1. (道教的廟宇) taoist temple2. (姓氏) a surname
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
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By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent
最後,本文還對絮凝動力學和絮體結構進行了研究,在前人研究的基礎上,針對高分子絮凝黃河泥沙,對絮凝過程作了一些符合試驗條件的假設,建立了顆粒碰撞頻率表達式,應用了顆粒數量平衡方程,從而建立了絮凝過程的動力學生長模型,模型計算結果與試驗數據對比表明,二者趨勢一致,在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程;對絮體結構的研究中,應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察,將絮體分為絮粒、絮團和絮網三個不同的生長階段,通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體,建立了絮體結構模型,計算得到的模型絮體分形維數基本與試驗中的實際絮體相符,在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。In the present dissertation, friction - induced noises emitted by a flat specimen rubbing against another flat specimen or a ball specimen under reciprocating sliding are studied. the detailed observation of the scars is conducted by means of a scanning electrical microscope ( sem ), laser scanning microscope ( lsm ), optical microscope and profilometer. the dynamic state variables are analyzed in detail using the discrete wavelet transform
使用電子掃描顯微鏡( sem ) 、激光掃描顯微鏡( lsm ) 、光學顯微鏡和表面輪廓測量儀等設備對摩擦噪聲發生的區域進行了詳細的觀察和分析,運用小波變換技術對摩擦噪聲狀態下的動力學變量進行了深層次的研究,應用matlab simulink語言對摩擦系統進行了振動動力學模擬,系統地研究了摩擦噪聲的形成機理。Based on the basic relations of mechanics, electrics and magnetics, the governing equations which are expressed in term of displacements of ux, uy and uz, electric potential and magnetic potential are derived for transversely isotropic magnetoelectroelastic medium
從橫觀各向同性磁電彈性力學運動方程、本構關系、電學和磁學方程出發,導出了用位移u _ x , u _ y , u _ z ,電勢和磁勢表示的磁電彈性介質的控制方程組。The updated model with complete forcing has excellent ability of simulation and forecast. to study yellow and east china circulation in winter and summer, based on long - term ocean observation data of january and august, the fine structure of yellow and east china seas circulation is diagnostically calculated with complete forcing ( including surface wind stress, boundary transportation, baroclinic effect, tide, changjiang river runoff ) in winter. the influences of factors on main circulation patterns are discussed respectively
對于冬季和夏季海洋環流的情況,在多年觀測的溫鹽資料基礎上,分別以1月份和8月份代表黃東海冬季和夏季的情況,以月平均大氣風應力、邊界流輸送、溫鹽斜壓效應、潮汐、長江口徑流等作為強迫條件,對黃東海環流的細微結構作了高分辨的三維數值模擬,探討了各因子對冬、夏季主要流系的動力學作用。So it is chiefly that soil co2 concentration and its influencing factors should be studied in ordered to learn the mechanism of epikarst ecosystem and global carbon cycle. karst dynamics laboratory, ministry of land and resources, has been studied the mechanism of seven typical epikarst ecosystem and global changes through igcp 299 ( geology, climate, hydrology and karst formation, 1990 - 1994 ) and igcp 379 ( karst processes and the carbon cycle, 1995 - 1999 ) to igcp 448 ( world correlation of karst ecosystem, 2000 - 2004 ), while observation and analysis and research of epikarst ecosystem in mt. jinfo have just been beginning. the thesis analyzes that based - on observational point of green pond and deep dell in the west slope of jinfo mountain, co2 concentration and regularity of epikarst ecosystem contrasting woodland with uncovered land have been studied through the observation of temperature and humidity and co2 concentration
國土資源部巖溶動力學開放研究實驗室以igcp229 、 igcp379和igcp448項目為依託,開展了我國7個典型的表層帶巖溶生態系統運行規律及其全球變化影響研究,而其中金佛山的觀測、分析與研究則才剛剛起步,本文以金佛山西坡摘公碧潭幽谷為觀測點,主要通過coz濃度、溫度和濕度的觀測,開展林地表層帶巖溶生態系統與裸地表層帶巖溶生態系統coz濃度特徵及其變化規律的對比研究,這對進一步深入研究巖溶生態系統運行機制和全球碳循環以及開展全球巖溶生態對比有著重要意義。The research shows that students misunderstand the relation between force and motion. gravity and action / reaction ; that in dc circuit, students of different age groups have the belief of " consumption of current ", " clashing currents " and " the battery as a constant current generator " ; that in understanding the concepts of electricity students lack th e knowledge of relating the micro with the macro ; and that students have serious difficulties in understanding the propagation of mechanics wave, the speed of wave and superposition, and do not make a distinction between the initial conditions and the medium properties of the system
具體表現在:學生對力和運動的關系、重力和平衡、作用力與反作用力存在一些誤解;對直流電路,不同年齡的學生不同程度地存在電流消耗、碰撞電流、恆定電流源等觀念,而且對電學概念的理解缺乏宏觀與微觀的聯系;學生在機械波的傳播、波速、波的疊加上存在嚴重的困難,對于機械波的傳播學生不能區分初始條件和媒質特性,並錯誤地將動力學某些觀念與機械波進行類比。On the base of model, considering the disturbance from the other 5 legs and variating load, we design an h - inf controller integrated with ip controller, which makes the system with the advantage of both h - inf control and ip control, and restrains the bad effect from variating disturbance. the simulation shows that this stradgy enhances the system robustness. in another solution, the coupling and load disturbances are regarded as the parameter variations of motor model, and the variation is observed, thus, the coupled dynamics of vamt is decoupled to 6 single motor systems
在建立了模型的基礎上,本文針對單滑塊控制系統要受到其它滑塊及負載擾動的影響,採用h _控制方法設計的h _控制器與傳統ip位置控制器結合,使得系統具有ip位置控制器和h _控制的雙重優勢,有效地抑制了變化擾動對位置輸出的影響,模擬結果表明該方法大大提高了系統的魯棒性;本文提出的另一種方案是將桿間的耦合作用和負載擾動看作電機參數變化,利用觀測器進行觀測,從而將耦合的機床動力學系統解耦成為6個獨立的電機動力學系統。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Accordingly, a new framework, which provides a common scheme for the numerical simulation on the macroscopic behavior of ferroelectrics though multi - scale analysis on the coupled thermo - electrics - mechanical behavior of multiphase in heterogeneous material, is induced to construct the effective constitutive equation of multiphase. in chapter four, based on the law of domain nucleation and domain wall motion of 1800 domain switching, a new scheme of domain switching and numerical simulation approach is put forward on the foundation of thermodynamics. driving traction, nucleation criterion, velocity of domain wall motion, kinetic relation and rate of domain switching in a single grain are given
第四章以鐵電體1800疇變的過程中形核規律和疇界運動規律的實驗觀察結果為基礎,根據熱力學理論建立鐵電體疇變的理論框架和數值模擬方法;給出了單疇內疇變驅動力、新疇形核準則、疇界運動速度公式、疇變動力學的表達式,單晶的疇變速率公式;用細觀力學的觀點給出了對多晶鐵電體多場耦合的有效性質進行包含疇變速率影響的多尺度分析方法。The tg and dta techniques were used to research the decomposition kinetics of depositions. the decomposition mechanism and kinetics - equation were investigated according to phadnis methods, and the equation can be depict as follow : the kinetics parameter of decomposition were obtained by using kissinger methods. the activation energy was 162. 41kj / mol and reaction index was 1. 30
利用phadnis法則,推斷堿式碳酸鈷的熱分解反應機理符合反應級數法則,得到非等溫條件下堿式碳酸鈷的熱分解動力學方程為:並利用kissinger法計算堿式碳酸鉆熱分解反應的表觀活化能為162 . 41kj mol ,熱分解反應級數為1 . 30 。In air - water system, the influence of gas superficial velocity on hydrodynamic parameters and volumetric mass transfer coefficient ( k, a ) is investigated. in order to simulate microorganism, a series doses of solid particle are added into water. in such an air - water - solid particle system, the influence of solid concentration on hydrodynamic parameters and volumetric mass transfer coefficient are studied
在空氣-水體系研究了表觀氣速對流體動力學參數和傳質動力學參數的影響;以固體顆粒模擬生物相、以柔性填料模擬生物填料床在空氣-水-固體顆粒和空氣-水-填料體系中研究固含率對流體動力學參數和傳質動力學參數的影響;以cmc溶液模擬實際操作中的液相介質研究液相粘度對上述參數的影響; 4After the discussion of the algorithm of complexity parameters, lyapunov exponent and apen, the pressure fluctuation in fluidized beds is analyzed quantitatively. the effect of different operating conditions, such as variant gas superficial velocities, axial positions and static bed heights, is discussed
在討論復雜性參數、 lyapunov指數、近似熵的演算法基礎上,對流化床壓力脈動進行定量分析,討論了表觀氣速、軸向位置、靜床高等不同操作條件對混沌特徵參數的影響及其對應的動力學規律。Using a stringent objectie statistical algorithm to reduce false discoery rates below 5 %, we isolated a panel of 87 genes that represent major focal points of the autonomous response of cancer cells to the abrogation of microtubule dynamics
用嚴格客觀的統計表格減少假陽性率至5 %以下,我們對一組87個基因(代表著腫瘤細胞自主反應的主要局部位點)進行分離到無微小管動力學存在的水平。The predominantly expressed nr2 subunits in hippocampus and neocortex are nr2a and nr2b, they have different developmental expression profiles - there is a developmental decrease in expression of the nr2b subunit and an increase in expression of the nr2a subunit, which endow the nmda receptor with distinct channel properties
而隨著年齡的增長, nr2a亞單位的表達量和突觸含量逐漸增加。不同的nr2亞單位賦予nmda受體不同的通道動力學特性,如在老年動物中觀察到nr2b向nr2a亞單位的轉換降低了突觸可塑性。Single - layer model is convenient to apply but the unclear relationship between radiative and aerodynamic temperatures is still a bottleneck in this field. a new method was developed to derive reliable surface heat fluxes from radiative temperature viewed from arbitrary zenith angle. aerodynamic and radiative temperatures are connected through a so - called optimum component fraction ( ocf ) parameter - the fraction of vegetation in the field of view when the two temperatures are equivalent in oblique viewing
該方法利用表面熱輻射方向性和顯熱通量都是源於土壤和植被溫度的貢獻這一共同點,發現在一定傾斜角度的觀測下,視場中植被與土壤的比例可以較好地反映植被和土壤與大氣進行湍流熱交換的貢獻率,所以稱該方法為最佳組分面積比法,用最佳組分面積比可以將任意角度下觀測到的輻射溫度訂正為空氣動力學溫度,經過地面和遙感數據驗證表明,用該方法計算的通量精度高於普通的單層模型。The kinetic characteristics of the electrochemical oxidation of adrenaline to adrenochrome was studied by uv - vis spectroscopy. the measurements showed that the electrooxidation of adrenaline to adrenochrome was typical of the first order reaction and the average apparent rate constant is 1. 92110
以紫外-可見分光光度法為主要手段,研究了腎上腺素電氧化生成腎上腺素紅的反應動力學特徵。研究結果表明:該反應具有一級反應的動力學特徵,且反應的表觀反應速率常數的平均值為1 . 92110The thermal decompostion kinetics of up / montmorillonite nanocomposites under nitrogen was studied. the reaction order and apparent activation energy of nanocomposites were obtained by freeman - carroll method. the results indicate the thermal stability of nanocomposites is higher than pure up ' s
研究了氮氣氣氛下不飽和聚酯蒙脫土納米復合材料的熱分解動力學,用freeman - carroll法確定了復合材料的反應級數n和表觀反應活化能e 。Ground on the knowledge of the form mechanisms of the coating defects, the research work proposed some thoughts related to preparation / deposition process to control the coating defects. based on observation of micro - morphologies of the coatings, combined with relative weight change in oxidation, the effects of these modifications on coating defects control and the behaviors of 2d c / sic at constant temperatures in air condition were investigated. the main contents and conclusions are as follows : 1
本文從多層cvdsic塗層缺陷形成的根源出發,通過塗層制備工藝進行塗層缺陷控制;以對塗層顯微形貌的觀察為基礎,結合氧化重量變化率,研究了不同塗層改性工藝對多層cvdsic塗層面缺陷的影響以及對2dc sic復合材料恆溫氧化行為的影響,主要研究內容與研究結果如下: ( 1 )研究了多層cvdsic塗層的2d和3dc sic復合材料在空氣中的恆溫氧化行為,表明2d和3dsic ? c sic在空氣中表現出類似的氧化動力學行為。Numerical results show the obvious difference between the model of isotropic saturated poroelastic media and that of transversely isotropic saturated poroelastic media
研究表明採用各向同性飽和介質的動力學模型不能準確描述橫觀各向同性飽和土地基的動力特性。3. kinetic study of phase change of the composite materials was given by dsc method, the activation energies and the reaction orders of the phase changes in the composite materials were calculated
3 、運用dsc對上述復合貯能材料的相變動力學進行了研究,確定了各相變過程的表觀活化能值及反應級數。分享友人