電熱對流 的英文怎麼說
中文拼音 [diànrèduìliú]
電熱對流
英文
convection-
In section one, by using fice scheme and time - gcm, a model of trace gases and oh airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and oh airglow are analyzed. the result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. in this process, gravity wave undergoes growth, overturning, convection and breaking
在第一部分的工作中，利用全隱歐拉格式和全球熱層-電離層-中間層-電動力學環流耦合模式（ time - gcm ） ，對重力波的非線性傳播及其在傳播過程中對中高層大氣中氧族和氫族成分和與之密切相關的oh氣輝輻射的影響進行了數值模擬，結果表明，從對流層向上傳播的重力波經歷了產生、發展、飽和、對流產生直至破碎的非線性演化，大氣的非等溫結構加速了重力波在中層頂區的破碎，重力波的非線性傳播是小尺度對流和湍流產生的一個重要的源。Pre - data gathering module achieves the collection and communication of sixteen - route temperature signal. speed measuring and controlling module realizes the control of refolw soldering transfer speed by manipulating transducer. on - off outputting module fulfills calefaction control of calefaction tube by solid state relay. above position operator software programs by delphi, and realizes pid parameter automatic timing and no - oversnooting temperature control. software has friendly interface, convenient operation, complete functions
前置數據採集模塊完成16路溫度信號的採集和通訊；速度測量模塊與速度控制模塊通過控制變頻器來調節迴流焊的傳輸速度；開關量輸出模塊通過固態繼電器對加熱管進行控制；上位機軟體採用delphi編程，實現了pid參數自整定以及無超調的溫度控制。Hot water is likewise less dense than cold water and rises, causing convection currents which transport energy
熱水是同樣密度較低，比冷水上升，造成對流電流，其中運輸能源。Contraposing the measurement principle of the traditional hotwire air mass flowmeter, the reason of the excursion of the result for flow measurement was analyzed and inferred when environment temperature changed ; the method for temperature compensation and the realization circuit was given ; and compared the theory output of the new type hotwire air mass flowmeter with its real output after temperature compensation
摘要針對傳統型熱線式空氣質量流量計的測量原理，分析和推導出當環境溫度變化時對流量測量結果產生偏移的原因；提出了一種環境溫度的補償方法和具體的實現電路；並對經環境溫度補償后的一種新型熱線式空氣質量流量計的理論輸出和實際輸出進行了計算與比較。Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented
許多行星（如木衛三，水星，地球，木星和土星）和恆星（如太陽）具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動，磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線，即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色，並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型Effect of thermal diffusion and electrostatic force on the evolution of wind - blown sand flow
熱擴散和電場對風沙流發展過程的影響Based on the hydrodynamic energy transport model, the influence of variation of negative junction depth caused by concave depth on the characteristics of deep - sub - micron pmosfet has been studied. the results are explained by the interior physical mechanism and compared with that caused by the source / drain depth. research results indicate that with the increase of negative junction depth ( due to the increase of groove depth ), the threshold voltage increases, the sub - threshold characteristics and the drain current driving capability degrade, and the hot carrier immunity becomes better in deep - sub - micron pmosfet. the short - channel - effect suppression and hot - carrier - effect immunity are better, while the degradation of drain current driving ability is smaller than those with the increase of depth of negative junction caused by source / drain junction shallow. so the variation of concave depth is of great advantage to improve the characteristics of grooved - gate mosfet
基於能量輸運模型對由凹槽深度改變引起的負結深的變化對深亞微米槽柵pmosfet性能的影響進行了分析，對所得結果從器件內部物理機制上進行了討論，最後與由漏源結深變化導致的負結深的改變對器件特性的影響進行了對比.研究結果表明隨著負結深（凹槽深度）的增大，槽柵器件的閾值電壓升高，亞閾斜率退化，漏極驅動能力減弱，器件短溝道效應的抑制更為有效，抗熱載流子性能的提高較大，且器件的漏極驅動能力的退化要比改變結深小.因此，改變槽深加大負結深更有利於器件性能的提高Account for the high electrical field induced from the high applied voltage relative to small dimension device, the mechanism of hot - carrier generation is analysed, the si - h bond broken model for hot - carrier injection and interface states generation is deduced and the substrate current model is developed
基於mosfet偏壓不能按比例縮小所導致的高電場，對mosfet的熱載流子產生機理進行了分析，導出了熱載流子注入所引起的界面態的si - h健斷裂模型，並建立了表徵器件熱載流子效應的襯底電流模型。The adoption of patent technology iodine tungsten lamp red heating can incorporate the energies of electricity, light and infrared ray radiation into a whole ; and the water absorption rate can reach the best with the effects of radiation, conduction, convection and function of light energy
專利技術碘鎢燈紅加熱，集電能、光能、紅外線輻射於一體，利用輻射、傳導、對流及光能的作用使水吸熱率達到最佳。The new device consists of paint - drying box, heat carrier boiler, heating pipe, expansion tank, gas separator and oil tank, etc. the data of two applied examples shows that heat carrier paint drying method is able to make painting - drying cost drop by 88 %, compared with the conventional one, that it has some advantages such as uniform temperature field, good appearance and lower costs, compared with conventional hot air convection mode
該裝置主要由熱載體烤漆爐、輻射加熱管，熱載體爐、膨脹器、油氣分離器和儲油槽等組成。應用實例的測試數據表明，與傳統的遠紅外電加熱鋼瓶烤漆方式相比較，鋼瓶熱載體烤漆節能和降低能耗費用十分顯著，能耗費用降幅達到88 。與熱風爐對流烤漆方式相比較，熱載體烤漆方法不僅節能，而且烤漆爐溫度場均勻穩定，同時烤漆的外觀質量也得到了明顯提高。The ideology and experience regarding design of large capacity w flame units in foreign countries should be further acknowledged, this can be an example for us to draw a more reasonable rules and methods of calculation. in this thesis, the systematic numerical simulations were conducted for w flame boiler furnace
針對邯峰電廠的660mw機組w型火焰鍋爐的特點，編制和完善了爐內熱態流動及燃燒模擬程序，並進行了全面的爐內過程數值計算，得到了鍋爐爐膛內的溫度分佈和速度分佈，對鍋爐性能進行了預報。Mesoscale convective system ; geostationary satellite ; tropical rainfall measuring mission ; lightening
中尺度對流系統地球靜止衛星熱帶測雨衛星閃電It is proposed that the higher dose condition creates more hot carriers but the lower sensitivity to hot carrier effect. therefore, the optimum dose for reliability is determined from the trade - off between the above two aspects. finally, a simple model is proposed and discussed
本文還深入研究了sde區摻雜濃度對器件熱載流子可靠性的影響，指出濃度的提高雖然會產生更多的熱載流子，但由於其對熱載流子損傷的敏感度降低，因此將存在一種折衷，最後通過一個簡單的寄生電阻模型，對摻雜濃度提高后，器件對熱載流子損傷敏感度降低的現象做出了很好的解釋。The charge and discharge performances of different composites were studied by the charge and discharge ; the structures of composites were characterized by sem ; the electrochemical properties of sulfur positive materials were characterized by cyclic voltammetry and eis. we studied the charge process, discharge process, charge - discharge efficiency, self heat, and self - discharge of lithium - sulfur system on system shuttle constant, conduct the mechanism of these processes and simply analyse them
以充放電技術研究了不同類別復合正極的充放電性能;以掃描電鏡技術觀測了復合正極的表面形貌;以循環伏安技術和交流阻抗技術研究了復合正極電極的電化學性能;並初步探討了鋰-硫電池體系中充電過程、放電過程、充放電效率、自熱和自放電等對體系飛梭常數的影響，推導了這些過程的機理並簡要的進行了分析。In this condition heat convection inside and outside of tube are coupled. coefficient of convective heat transfer inside and outside of tube gotten through such way compare with coefficient of convective heat transfer inside and outside of tube gotten through by electricity. for comparability between this two condition, the average heat flux on the tube must be equal for this two condition
這種情況下管內外對流換熱是藕合的，得到的管內外對流換熱系數分別與電加熱管道壁面的邊界條件下管內和管外流動的對流換熱系數相對比，為了使他們具有可比性，我們規定在這兩種邊界條件下通過管子的平均熱流密度相等。Congregates latest music video from europe, america, hong kong taiwan and china. with mtvs global coverage range, the countdown show brings you the best pop music, synchronizing you with the global trend of music
匯集歐美港臺和內地原創的最新mv ，憑借mtv全球音樂電視臺覆蓋全球的網路優勢，將最權威最流行最熱門的流行音樂傳遞給國內觀眾，使音樂愛好者對流行音樂達到同步了解的地步。At the same time, the mathematical models of the electric field and the flow field distribution were established from the theory of electrostatic enhancement of heat transfer. employed finite differential method and over - relaxation iteration method, according to certain boundary conditions in the wire - plate electrode space, the electric field and the flow field in the wire - plate space were numerically simulated under different initial velocities of r11 stream and different magnitudes of applied voltage. the calculation results agreed with theoretical analysis satisfactorily
同時從靜電強化換熱理論出發，建立了表徵線板電極間的電場和流場分佈的數學模型，並根據線-板電極間的邊界條件，利用有限差分法和超鬆弛迭代法，分別就不同氣流初速度和不同外施電壓的情況下，對線-板空間的電場和流場進行了數值模擬，計算結果與理論分析基本一致。To the cabin which is designed by the forth department chongqing communication college, the model which includes the air in the cabin, generator set and public muffler is built integer, meshed, and added by boundary condition and load. the normal k - model etc are used to be turbulence model of the air in cabin respectively, the turbulence model is calculated by simplef or simplen algorithm, and by the first order accurate msu or the second order accurate supg in advection discretization scheme
論文對艙內空氣、發電機組和公用消聲器進行了整體建模和網格劃分，施加機組艙模型的邊界條件和載荷，採用標準k -等多個模型來分別模擬機組艙通風散熱的空氣湍流流動，採用simplef和simplen兩種不同的數值演算法以及一階msu和二階supg的對流項分離方案來對流動模型進行運算。In order to investigate the effect of high - field hot - carrier on devices and circuits, the electrical stress experiment is carried out with 1. 2 n m, 1. 0 n m and 0. 8 u m channel length home - made mosfet ' s by the monitor system with ate and cat technology. by using the fresh and degraded experiment data, bsim2 model parameters are extracted
為了分析研究高場熱載流子效應對器件和電路特性可靠性的影響，採用自動測試與cad技術相結合的監測系統，對國內溝道長度1 . 2 m 、 1 . 0 m和0 . 8 m的mosfet進行了電應力退化實驗，並根據實驗結果提取了退化前後器件的bsim2模型參數。The main work lists as following : 1 on the condition that cfrc is an macroscopically isotropic material, the governing equations of electric and thermal conduction for the inspection were established ; the current density and joule heat distribution around several kinds of flaws were investigated 2 by fem, the process of inspection was simulated ; the current density, joule heat and temperature distribution were also investigated, and the simulation results were contrasted with experimental data
主要工作為： 1 、將機敏混凝土合理假定為宏觀各向同性材料的基礎上，建立了檢測過程中的熱、電傳導相關的控制方程；並研究了幾種不同缺陷周圍檢測過程中的電流密度、焦耳熱分佈規律。 2 、通過有限元方法對機敏混凝土的電熱場進行了模擬分析，研究電流密度、焦耳熱分佈及試件表面溫度分佈變化規律並與實驗所得試件表面溫度場進行了對比分析研究。分享友人