電化數學 的英文怎麼說
中文拼音 [diànhuàshǔxué]
電化數學
英文
audiovisual instruction-
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。Engine load simulated control system was consisted of two unattached parts of work resistance simulated control subsystem and electric bow wave dynamometer control subsystem. with the mathematic models of engine load simulation controller, which transferred the work resistance ' s change to engine load change immediately, the system can met the need of the simulation control system
發動機負荷模擬加載控制系統包括彼此獨立的作業阻力模擬控制子系統和電渦流測功機控制子系統兩部分，應用發動機負荷模擬控制器數學模型，使作業阻力的變化及時轉換為發動機負荷的變化，能夠滿足模擬系統的控制要求。Laboratory measurement of electrochemistry on rock
巖石電化學參數的實驗室測定With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed
本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。Math model of induction motor synchronization control
異步電動機同步化控制的數學模型The paper presents a distribution analysis software platform which is developed combining computer graphical theory and oop ( object - oriented programming ). the platform includes three modules, the graphics module, the database module and the computation module. the graphical module can draw the key diagram of power system ; the database module can save, browse and edit the data of power systems ; the computation module can compute the power flow
本文運用面向對象的程序設計方法結合計算機圖形學的知識，開發了一套可視化配電網分析軟體平臺，它包括用於繪制電力系統結線圖的圖形模塊、用於保存、瀏覽、修改電網數據信息的數據庫模塊和進行配電網潮流計算的計算模塊。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義There are the production lines established of intermediate - frequency melting, silicasol shuck, precision casting and metal ceramic, and 250 universal devices suck asvacuum melting electric furnaces, high - temperature and intermediate - temperature heat treatment electric furnaces, digitai - control lathes, milling and drilling machines, coreless millers, spherical surface millers, standing milling machines and so on, lt has established the central measuring roomm physicallab, chemical lab, metallic phase lab, crack detection test lab, seat ring lab, rocker lab and ducgt trestle lab, our esported gas engine valve seat to america was rewarded the second prize in terms of sichuan high - quality product
建有中頻熔煉真空熔煉硅膠溶模精密鑄造粉末冶金生產線。有中頻電爐真空熔練電爐高中溫熱處理電爐數控車床鉆銑床無芯磨外園磨立磨等通用設備250臺套。有中心計量室物理化學金相探傷檢測及座圈搖臂導管臺架實驗室。It combained potentiostat, potentiostatic circuit instrument and ac impedance measurement organticace, which can measure usual dynamic potentio - scan, experiment of dynamic potentio - scan, but also unique measurement of ac impedance measurement, also, this new type electrochemical workstation can carry on complex experiment, sucn as potentio / current scan ac impedance measurement procedural measurment, life - span - circle ac impedance measurement procedural measurement in order to fullfill the goal of track and analysis of parameter in various electrochemical conditions. this graduation thesis indicate the structure, function of the multifunct - ional electrochemical workstation
它把恆電位儀，恆電流儀和電化學交流阻抗分析儀有機地結合到一起，既可以做常規的基本測試如動電位掃描、動電流掃描試驗和電化學交流阻抗測量，也可以做基於這三種基本試驗的程式化試驗，如恆電流充電-電化學交流阻抗測量，電池壽命循環試驗-電化學交流阻抗測量試驗，從而完成多種狀態下電化學體系的參數跟蹤和分析。A short circuit calculation software has been developed by setting up visual mathematic model of power network, providing the criterion of the choosing of the equipments under high - handed electricity power transmission and distribution for ptcad2000
通過建立可視化的電網數學模型，程序實現了電力系統下短路故障的計算和分析，為在ptcad2000平臺下高壓輸配電網的設備選型提供了依據。Zhusuan is closer than writing calculation with computer in the distance, through the analyzing and researching in algorithm mechanism. the developed of mechanized mathematics, in ming dynasty, is the heights of chinese mathematics and the magnificent feats of the world in that times
四、從演算法的基本機制要素（輸入、儲存、計算和輸出）上，對明代機械化數學（珠算）與西方同期的機械化數學（筆算） ，進行了具體分析和比較，說明從與數字電子計算機思想方法的距離上看，珠算要比筆算近得多。Firstly, according to the detailed analysis on the mathematical model of pmsm, the principle of field oriented control ( foc ) is illustrated. spwm and svpwm are analyzed and contrasted in detail too, and the digital realization techniques based on dsp are given
本文首先在分析永磁同步電機數學模型的基礎上，闡述了永磁同步電機矢量控制基本原理；對正弦波調制技術（ spwm ）和空間矢量調制技術（ svpwm ）兩種脈寬調制策略進行了詳細的分析和對比研究，給出了基於dsp的數字化實現方法。According to energy conservation equation and fusion and evaporation characteristics of electrode materials, a simplified one - dimension mathematical model was made and numerically solved by means of fdtd ( finite - difference time - domain )
根據能量守恆方程，同時考慮了電極材料的熔解和氣化特性，建立了電極燒蝕過程的一維簡化數學模型，並採用時域有限差分法（ fdtd ）進行了數值求解。Abstract : this article is based on the theory of fuzzy optimization design. the running speed and width and initialtensileforce and interval distance of roller are its design variable. the objective function is the minimum power loss of the traction motor. it constructs the fuzzy optimization mathematical model of the two - way running belt conveyer ' s main parameters
文摘:以模糊優化設計理論為基礎，以雙運帶式輸送機輸送帶的運行速度、寬度、初張力及托輥間距為設計變量；以牽引電機運行的最小功率消耗為目標函數，構造出了雙運帶式輸送機主參數的模糊優化數學模型。The actuators are nozzle vetor controller, rotational measuring valve controller and vane controller. the smart actuators are capable of data collection, self - calibration, power - on self - test and local close - loop control, etc. a simplified mathematical model for the vector nozzle is constructed, and the relationship between the state of vector nozzle and actuator cylinders ’ position is obtained. the effect of the position controller is tested
實現了智能執行機構的數據採集、自校準、上電自檢測和局部閉環控制等功能，建立了矢量噴口實驗件的簡化數學模型，推導了矢量噴口狀態和作動筒位置之間的關系，並在含實物平臺上對位置控制器的效果進行了實驗驗證。And then, this parallel connection operating optimization reconstruction project is put forward in variable speed pump of circulating water system, finally we found the optimization mathematic model and workout its optimization operation program
然後又結合某電廠循環水系統優化運行方式的改造，給出循環水系統變速泵並聯運行優化改造方案。通過建立變速泵並聯運行時的優化數學模型，並編制了相應的優化運行程序。Moreover, in order to represent the influence of temperature and irradiation to the characteristic of solar array, a physical mathematical model of solar array is established which based on short - circuit current ( isc ), open circuit voltage ( voc ), the voltage of mpp ( vm ), the current of mpp ( im ). the characteristic of solar array in varied temperature and irradiation can be established with the appropriated parameters deduced by the above model
為了能夠反映環境溫度、日照強度對太陽電池陣列的i - v特性的影響，系統建立了基於短路電流（ i _ （ sc ） ） 、開路電壓（ v _ （ oc ） ） 、最大功率點電壓（ v _ m ）和最大功率點電流（ i _ m ）的太陽電池陣列的工程化數學物理模型，該模型可以依據現場測量的數據確定任意照度、溫度條件下的特性參數，預估太陽電池陣列在不同溫度、照度下的特性曲線。Furthermore, under the vector control strategy of stator field - orient, a vector control model will derive from the generator, which form a close control system with the generator model
本文利用定子磁鏈定向的矢量控制方法，將同步坐標系下的雙饋電機數學模型簡化后得到矢量控制系統的模型；矢量控制模型與雙饋電機模型一起構成閉環控制系統。For the generator operation conditions of full range of loads optimization model was established and the model was solved by use of optimization computation approach
建立了適合於電站運行情況的全工況優化數學模型，並應用最優化計算方法進行了求解。On the basis of producing the mathematical model of calculating the induced currents on the passive feedback coils, the distribution and variation of the induced currents and the eddy currents magnetic field are given by numerical calculation. these conclusions are necessary to study the vertical unstability of plasma and design the coils
在建立求解被動導電板感應電流數學模型的基礎上，通過數值計算，給出了感應電流的分佈和變化情況，同時對渦流磁場的分佈和變化也給出詳細的計算結果，這些結論對研究等離子體垂直不穩定性和線圈的設計是必需的。分享友人