mathematic constant 中文意思是什麼
mathematic constant
解釋
數學常數- mathematic : 精確的
- constant : adj 1 恆定不變的，固定的，穩定的，恆久的；繼續不斷的。2 不屈不撓的，堅韌的。3 忠實的，有節操的。n...
-
Chapter iii tries to establish the mathematic model of daily gas consumption forecasting, focusing on the introduction of index smooth forecasting theory and determining the reasonable flatness constant
第三章，建立了日用氣負荷預測的數學模型，重點介紹了指數平滑預測理論，確定了合理的平滑常數，進行日用氣負荷預測，用歷史統計數據與預測結果進行對比分析。 -
The mainly work of this project : 1 a mathematic model of the ground clutter for airborne pd radar is established and the clutter power spectrum is calculated by the method of integrating reflected energy between constant doppler loci in range - gate circle
本課題的主要工作包括：一、對機載相控陣雷達的雜波功率譜進行數學建模，採用沿距離門等多普勒線區域積分的方法求解雜波功率譜。 -
Based on the information theory, it is proved that the entropy of information system and the mutual information of decision system are constant in the hierarchization of attributes. so the rst hierarchical reduction approaches have strict mathematic basis. the application in acquiring the control decision of a cement kiln shows the validity of the hierarchical reduction approach
本文從信息理論的角度分別證明屬性分層遞階不改變信息系統的信息熵和決策系統的互信息，從而使分層遞階約簡演算法體系具有嚴格的數學基礎；分層遞階約簡演算法在某水泥窯爐控制決策獲取中的應用證實其有效性。 -
Mainly discussed the use of plc in wrapper, constant tensioned winding under variable frequency speed regulation, the use of servo system in accurate location, and also discussed the mathematic model of the auto control system of the wrapper
摘要介紹了plc在分條整經機中的應用，變頻調速下的恆張力控制，伺服系統的精確定位，並且討論了整經機自動控制的數學模型。 -
A mathematic model of the motor is builded and emulated through matlab. the low - speed and constant - torque, high - speed and constant - power state is analyzed and researched, also the software approach of simulation to the driver has been done, a digital signal processor tms320lf2407 is developed successfully to control the perm square - wave bldcm driving airscrew of solar powered unmanned engine. it is useful to the further study
在matlab下建立了電機的數學模型，通過計算機模擬，驗證了數學模型的正確性，同時在理論上對低速恆轉矩高速恆功率運行進行了分析與研究，提出了一種用模糊控制的方法實現恆功率控制，並對驅動器進行了系統模擬，成功的研製了以數字信號處理控制器tms320lf2407為控制核心的驅動器，控制無刷直流電動機驅動太陽能無人飛機的螺旋槳，為後面繼續研究工作提供了參考。 -
Firstly, under the assumption that the output driving torque generated by the stepper motor of the mirror is constant, such influence analysis is conducted. secondly, a mathematic model of the stepper motor is given. under the assumtion that the input impulse frequence is constant, the rotational motion of the stepper motor of the mirror with the mutual exertions of damping torque, friction torque and disturbance torque generated by satellite platform ' s attitude motion is simulated and analyzed
對衛星平臺姿態振動對紅外相機掃描機構轉動的影響進行了系統深入的模擬分析:首先在步進電機驅動力矩一定條件下，模擬分析了星體姿態運動干擾力矩對紅外相機掃描鏡轉動的影響;接著建立了步進電機的數學模型，在步進電機輸入脈沖頻率一定條件下，模擬分析了步進電機在阻尼力矩、干摩擦力矩、平臺干擾力矩等負載轉矩的共同作用下的轉動情況。 -
This study is done for the first time in domestic torpedo business, the mathematic model of cowterrotating motor is established and some special characteristics of torpedo ' s drive cowterrotating dc motor under the load of constant torque or the load of cowterrotating propellers are exposited
這項研究在國內同行中還是首次進行，它建立了魚雷雙轉推進電機的數學模型，揭示了魚雷雙轉推進電機在恆力矩負載和對轉螺旋槳負載下的一些特殊特性。
分享友人