介質梯度 的英文怎麼說

中文拼音 [jièzhítīdù]
介質梯度 英文
dielectric gradient
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 梯 : Ⅰ名詞1 （梯子; 樓梯） ladder; stairs; steps; staircase 2 （姓氏） a surname Ⅱ形容詞（形狀像樓梯的...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  1. That is the premise of the bg / ha electrophoresis codeposition. the laws of the electrophoresis deposition of the bg and ha partic les were found by the study on each of their deposition under the different conditions. the electrophoresis codeposition of the bg and ha particles had been studied and the bg / ha graded coating, which is compact in the bottom layer and porous near the surface layer, had been prepared on the surface of the dental implant after the low temperature heat treatment ( about 740 ) and fast firing ( 50 - 80 / min, heat preservation time was 5 - 8min. )

    以bg微粉和ha微粉作為塗層原料，通過研究bg和ha微粉在非水介質中的分散情況和帶電特性，選擇冰醋酸為介質，使分散在其中的bg顆粒和ha顆粒表面均帶上正電荷，為電泳共沉積提供前提條件；通過對不同條件下bg 、 ha各自電泳沉積的研究，探索出了兩者電泳沉積的規律；通過對bg和ha在冰醋酸中電泳共沉積以及后續低溫（ 740左右）快燒（ 50 ? 80 min ，保溫5 ? 8min ）熱處理的研究，在鈦合金牙根種植體基體上成功制備出了底層緻密而表層多孔的bg ha梯度塗層。
  2. In this paper, the analytical method of linear stability has been applied to establish the marginal stability criterion of natural convection in porous medium, after considering the action of gravity, centrifugal and coriolis forces together in centrifugal force field

    理論研究的結果表明，當離心力與溫度梯度同方向時，只要滿足ra > 7 . 81 2或ra0 > 4 2 ，多孔介質中即可發生離心力、重力與哥氏力共同驅動的自然對流。
  3. In chapter 5, based on the measured refractive index distribution curve, according as the theoretical model of light transmission in the grin medium, using quadrivalent runger - kutta method to carry out the light tracking, we studied retro - reflection of grin polymer micro - sphere and its application and concluded the best conditions to get good results. in chapter 6 we analyzed the two ways to improve the retro - reflection effect of grin polymer micro - sphere using the light tracking and discuss the pleasant results we got

    第五章從上一章測量所得折射率分佈曲線出發，根據梯度介質球內光線傳輸的理論模型，用光線追跡的方法分析了327 #微球透鏡的反光性能，並對最佳性能條件進行了總結分析，發現效果提高並不明顯，進而在第六章中提出了提高grin聚合物微球回歸反射性能的兩個基本途徑，並用光線追跡方法進行了詳細的分析，最終得到了良好的效果，並對結果進行了一定的分析解釋。
  4. Chapter 5. based on the measured refractive index distribution curve, according as the theoretical model of light transmission in the grin medium, using quadrivalent runger - kutta method to carry out the light tracking, by this means the mainly imaging character index of the micro - lens such as foci, longitudinal and transverse spherical aberrations aberration etc is calculated. i

    第五章從測量所得折射率分佈曲線出發，根據梯度介質球內光線傳輸的理論模型，用四階runger - kutta方法進行光線追跡，計算了此種梯度球的縱橫向球差等光學特性，給出所製作梯度折射率微球透鏡成像性能的評價。
  5. When the moisture content is below fibre saturation point, the movement of absorbed water is subdivided into two parts : one is diffusion transfer due to the vapor pressure gradient, the other is moisture movement caused by the pressure fluctuation due to the variation of medium

    在纖維飽和點以下時，木材內部吸著水的遷移可分為：水蒸汽壓力梯度下的擴散遷移和由於乾燥介質壓力的波動而引起的浮動壓力下的遷移兩個部分。
  6. Topics include : planets, planet formation ; stars, the sun, " normal " stars, star formation ; stellar evolution, supernovae, compact objects ( white dwarfs, neutron stars, and black holes ), plusars, binary x - ray sources ; star clusters, globular and open clusters ; interstellar medium, gas, dust, magnetic fields, cosmic rays ; distance ladder ; galaxies, normal and active galaxies, jets ; gravitational lensing ; large scaling structure ; newtonian cosmology, dynamical expansion and thermal history of the universe ; cosmic microwave background radiation ; big - bang nucleosynthesis

    課程的主題包含了：行星、行星形成；恆星、太陽、正常的恆星、恆星形成；恆星演化、超新星、緻密天體（白矮星、中子星及黑洞） 、波霎、雙x -射線源；星團、球狀及疏散星團；星際介質、氣體、塵埃、磁場、宇宙射線；距離階梯；星系、正常及活躍星系、噴流；重力透鏡；大尺度結構；牛頓宇宙學、宇宙的動力膨脹及溫度發展歷史；宇宙背景微波輻射；大霹靂核合成。
  7. This article mainly concerns sources and classification of magnetic media which boom the magneto - bioseparation, as well as principles and applications of magneto - bioseparation methods including mixing / settling, hgms / f ， aqueous two - phase separation, msfb and magnetophoresis

    論述了磁性介質的來源、分類及以其為基礎的生物物質磁性分離技術，著重介紹了混合/澄清、高梯度磁分離/過濾、雙水相萃取、磁穩定流化床及磁泳等操作過程的原理和應用實例。
  8. This article mainly concerns sources and classification of magnetic media which boom the magneto - bioseparation, as well as principles and applications of magneto - bioseparation methods including mixing / settling, hgms / f, aqueous two - phase separation, msfb and magnetophoresis

    摘要論述了磁性介質的來源、分類及以其為基礎的生物物質磁性分離技術，著重介紹了混合澄清、高梯度磁分離過濾、雙水相萃取、磁穩定流化床及磁泳等操作過程的原理和應用實例。
  9. Seepage influences on the temperature distribution by means of heat transfer and communication, temperature influences on seepage field by changing the hydraulic conductivity and inducing fluid flow because of the temperature potential, thus finally approaching the stable seepage and temperature fields

    滲流通過參與熱量傳遞與交換影響溫度分佈，溫度通過改變介質滲透系數和溫度勢梯度引起水流運動來影響滲流場，兩者相互作用最終達到穩定的滲流場和溫度場。
  10. Selective absorption of electromagnetic wave. adw employing gases which do n ' t absorb the laser energy can form a gas urtain " whose pressure of the two sides is equal to the low pressure of laser cavity and the ambient circumstance pressure respectively so it can isolate the higher pressure ambient air from entrancing into the laser cavity and maintain the hel ' s running normally

    氣動窗口利用對激光器輸出波長沒有任何吸收作用的特殊氣體作為窗口工作介質，並根據氣體動力學部分相關原理，能生成一個具有與激光腔低壓和環境大氣高壓相匹配的壓力梯度、並把激光器低壓工作介質和外界大氣相隔離的「氣幕」 ，從而保證高能激光器的正常工作。
  11. Facilitated diffusion a passive transport of molecules across a cell membrane along a concentration gradient, mediated by carrier molecules or complexes, usually proteins

    易化擴散（促進擴散） ：分子沿濃度梯度由載體分子或復合物（通常是蛋白質）作為媒介的一種被動跨膜運輸。
  12. In this paper a numerical method for equations of transport and biodegradation in the fractured media is discussed. because the equations consist of terms related to advection, diffusion, biochemical as well as the term of exchange betwen the fracture and the porous media, it is very difficult to find their solution. in order to find more efficient method for solving these equations, several numerical methods for the equations without biochemical terms are discussed first. the numerical results show that the cubic spline method can be used to solve advection flow dominated problem which often occurred in the fractured media. then, the equation with both advection - diffusion term and biochemical term are discussed. the splitting - operator is used to decouple the advection and diffusion terms with biochemical term in the equations. the way to determine the smaller time step for solving fast biochemical terms is introduced through comparing the order of characteristic time of biochemical term with that advection ( diffusion ) term. numerical simulation results show that good agreement between analytical solution and experiment result is attained

    本文討論了含裂隙介質地下水污染物輸運與生物降解非線性方程組數值求解方法.方程含有對流項、擴散項、生長、死亡、吸附、解吸、趨化和孔隙與裂隙介質界面間的交換項的非線性偶合，使演算法十分困難.本文討論了無生化過程時的幾種求解方法，數值結果表明：用三次迎風插值法對常見的對流項占優勢，且場變量有較大梯度的問題較適用.在討論有生化反應過程時，利用對流項與生化反應項的特徵時間量級估算，給出了求生化過程作用子步的時間步長估算辦法.用上述方法所得到的模擬結果與解析解、無化學反應和有化學反應的實測值對比，吻合很好
  13. Micro - lenses with a spherical gradient index ( grin are a new kind of optical device. their optical properties are chiefly depending on their non - uniform index distributions. there are many merits about them

    梯度折射率（ grin ）微球透鏡及其陣列是一類新型光學器件，主要依靠介質特殊的非均勻折射率分佈以實現其各種光學功能，具有極簡單的幾何形狀。
  14. 3. algebraically explicit analytical solutions of two - buoyancy natural convection in porous media applying the approach of separating variables with addition, the thesis derives three sets of simple and clear algebraically explicit analytical equations describing the natural convection in porous media with both temperature and concentration gradients. besides the theoretical meaning, they are more valuable for be the benchmark solutions to check and improve the computational fluid dynamics and computational heat and mass transfer

    三、多孔介質中溫度與濃度梯度耦合自然對流基本方程的代數顯式解析解本論文對王補宣院士等給出的反映多孔介質中溫度與濃度耦合自然對流的五元非線性聯立偏微分方程，利用加法分離變量法，導出了三套比較簡明的代數顯式解析解。
  15. Chapter 2 : the beam propagation of x - ray in an inhomogeneous plasma with a continuous varied refractive index is studied. we emphasize, theoretically and numerically, on the analysis of the effect of refractive index gradient on the beam parameters

    第二章：研究了x射線激光光束在折射率連續變化的非均勻等離子體介質中的傳播，從理論和數值模擬上著重討論了折射率梯度效應對光束參數的影響。
  16. After the simple analyses with the single phased media theory, a more detailed analyses has been done, based on two phased media theory, on rayleigh wave propagation in saturated soil. the new results show that rayleigh wave will really cause larger shear stress and pore pressure than s wave in shallow layers and thus easily induce sand liquefaction

    進一步，基於兩相介質理論的有效應力法，研究了rayleigh波在飽水介質中的傳播情況，給出了rayleigh方程，分析了飽水介質中產生的應力，並同單相介質模型的結果做了對比，證實了rayleigh波較s波可產生較大的剪應力和法向應力梯度，從而導致液化的論斷。
  17. Firstly, based on the basic theory of grin optics the optical effects of the spherical symmetry grin micro - sphere lens were analyzed systematically. then two suitable monomers were selected to fabricate grin micro - sphere lens by suspension - diffusion - copolymerization method. finally, the refractive index distribution curve and other optic parameters of the micro - lens were measured

    本工作從梯度折射率介質光學的基本理論出發對球對稱grin微球透鏡的光學性能進行了系統分析；選擇兩種適當單體，採用懸浮擴散共聚法制備出聚合物梯度折射率微球透鏡；測量所得透鏡的折射率分佈曲線和其他光學參數。
  18. Polymer gradient refrective index ( grin ) micro - sphere - lens are a new - type optical element of very simple geometrical shape, whose optical function is mainly achieved by the inhomogeneous reflective index distribution of the medium

    梯度折射率（ gradientrefractiveindex ， grin ）微球透鏡是一類具有極簡單幾何形狀的新型光學器件，主要依靠介質內特殊的非均勻折射率分佈實現其各種光學功能。
  19. The heated part of thermal resistance temperature sensor is thin wire which circled framework that made up by insulated material. if there is different temperature in the measured medium, the measured temperature is its average temperature. although the shapes of thermal resistance are different, their basic structure are same on the whole, usually composed by temperature sensor insulated jacket protective tube junction box, etc

    熱電阻的受熱部分感溫元件是用細金屬絲均勻地雙繞在絕緣材料製成的骨架上，當被測介質中有溫度梯度存在時，所測得的溫度是感溫元件所在范圍內介質層中的平均溫度。
  20. Phase gradient auto - focus algorithm ( pga ) and rank one phase estimation auto - focus algorithm ( rope ) satisfying high - resolution air - borne sar image formation needs are analyzed. aimed at disadvantages of pga and rope algorithms, improved rank one phase estimation auto - focus algorithm ( irope ) is introduced. at last, combining fsa and irope algorithms, using air - borne sar actual flight data, the algorithms " feasibility and validity are validated

    第三，針對相位誤差對圖像質量的影響進行了定性分析，同時對多普勒參數估計的必要性及其幾種演算法進行了討論；接著系統研究了適合於高解析度機載sar成像要求的相位梯度自聚焦演算法（ pga ）和秩一相位估計自聚焦演算法（ rope ） ，並針對pga和rope演算法的不足之處，介紹了改進的秩一相位估計自聚焦演算法（ irope ） ；最後，結合fsa成像演算法和irope自聚焦演算法，以機載sar實際飛行數據為基礎，對演算法的可行性和有效性進行驗證。
分享友人
分享到 Line

分享到臉書