正態變換 的英文怎麼說

中文拼音 [zhēngtàibiànhuàn]
正態變換 英文
normal transformation
  • : 正名詞(正月) the first month of the lunar year; the first moon
  • : 名詞1. (形狀; 狀態) form; condition; appearance 2. [物理學] (物質結構的狀態或階段) state 3. [語言學] (一種語法范疇) voice
  • : 動詞1. (給人東西同時從他那裡取得別的東西) exchange; barter; trade 2. (變換; 更換) change 3. (兌換) exchange; cash
  1. The equations of motion governing the axisymmetric elastic deformation of finite orthotropic cylindrical shells, involving the effect of transverse shear and rotational inertia, are derived. by applying the reverberation method, the displacement and the resultant forces of the shell in the phase space are expressed. then the transient waves in the finite orthotropic cylindrical shell subjected to the axisymmetric impact are obtained by using inverse laplace transforms. furthermore, the transient solutions are decomposed to the generalized ray integrals and computed numerically

    分析了計及剪切形和轉動慣性的有限長交異性圓柱殼中彈性瞬波的傳播問題,採用回傳矩陣法,在相空間中給出了位移和內力的表達式。再利用laplace逆,得到交異性圓柱殼受軸對稱沖擊作用時彈性瞬波解,然後將其分解為若干廣義射線積分之和,並用數值方法求解之。
  2. On the one hand, we deduce the off - diagonal term of reduced density matrix is inner - product of two coherent states and we carry out decoherence in macroscopic limits in two special case, on the other hand, we delay decoherent time by controlling the interaction coefficient. in other part, we define two kind independent phase operators by improving two - mode squeezing coherent states in two - mode phase space and resolve their eigenstates

    在第二部分中,我們在雙模相位空間里利用雙模壓縮相干所對應的算符定義二類獨立的相位算符並相應求出本徵,而它的產生算符和湮滅算符是通過簡諧振子的產生算符和湮滅算符經過得到的。
  3. They denote the successful endeavour to dress up our barren hills with a self - maintaining and natural ecosystem. many paintings and photographs of hong kong, beginning from some 160 years ago when the city was first founded, have used as the main motif hong kong island with its buildings framed by the hilly background

    這亦好展示出前人目光遠大,他們努力不懈地將光禿禿的山頭成為自給自足的天然生系統的成果,亦與很多在160多年前香港開埠初期時的照片或圖畫所描繪的一間一間在光禿禿的山頭下的建築物成強烈對比。
  4. The topologies family include single four - quadrant power switch mode, push - pull mode, half - bridge mode, and full - bridge mode circuits. taking full - bridge mode circuit as an example, the operational mode, steady principles, transient voltage feedback control strategy of the converter are investigated. the output characteristic curve, the design for the key circuit parameters and the reference sinusoidal circuit which is synchronous with the signal of n or 1 / n times line voltage frequency are given

    該電路拓撲族包括單四象限功率開關式、推挽式、半橋式、全橋式電路,以全橋式電路為例分析研究了這類器工作模式、穩原理與電壓瞬時值反饋控制策略,給出了器的外特性曲線、關鍵電路參數、與電網電壓n倍頻或n分頻信號同步的基準弦電路的設計。
  5. This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved

    本文提出了一種採用修補spwm弦表值的方法,用以改善電壓型全橋逆主電路因上下橋的功率器件切時先關斷后導通的死區時間而引起的輸出電壓波形畸;逆系統採用帶前饋校比例積分系數的模糊控制器,提高了系統的動響應指標;系統設計了完善的保護措施,並具有市電電網的故障診斷功能。
  6. The analysis of ppf ’ s operation principle is introduced in detail in this paper. further more, the effect on the circuit operation is also analysed, which caused by clamping capacitance and different transformer leakage inductance value

    本文首先深入研究了推挽器的工作原理,分析了穩條件下的工作模,同時分析了箝位電容與壓器原邊漏感的大小對于工作模的影響。
  7. In this paper, we derive predictive models of system and auxiliary system from double constant alterations respectively. the controller based on d - step ahead predictor can locate the closed loop poles at desired positions, whose parameters are adjusted by estimations of plant parameters that are separately estimated. an auxiliary estimator is developed to avoid ill - condition in solving diophantine equation. simulations show that these control systems have better dynamic responses under existence of measurable disturbance

    引入雙恆等推導出系統及輔助系統的的d步預測模型,基於估計器的自校控制器能將閉環極點配置在所希望的位置,它的參數是由與其相互獨立的對象參數調節.提出使用輔助估計器克服丟番方程的病問題.模擬表明在存在可測干擾的情況下該系統具有良好的動性能
  8. Abstract : in this paper, we derive predictive models of system and auxiliary system from double constant alterations respectively. the controller based on d - step ahead predictor can locate the closed loop poles at desired positions, whose parameters are adjusted by estimations of plant parameters that are separately estimated. an auxiliary estimator is developed to avoid ill - condition in solving diophantine equation. simulations show that these control systems have better dynamic responses under existence of measurable disturbance

    文摘:引入雙恆等推導出系統及輔助系統的的d步預測模型,基於估計器的自校控制器能將閉環極點配置在所希望的位置,它的參數是由與其相互獨立的對象參數調節.提出使用輔助估計器克服丟番方程的病問題.模擬表明在存在可測干擾的情況下該系統具有良好的動性能
  9. We deduce easily the coherent term of quantum dynamical model ( the off - diagonal of reduced density matrix ) by improving the nature of displace operator and the nature of coherent states. then, the interaction is energies of a two - photon mechanism and the usual one - photon or liner driving mechanism. we deduce the coherent term by improving the nature of squeezing operators, displace operators and canonical transformation

    其一,僅有阻尼相互作用和勢能相互作用,此時利用位移算符的性質和相干的性質很方便地推導了量子動力學模型的相干項(約化密度矩陣的非對角元) ;其二,考慮的是既有單光子相互作用又有雙光子相互作用,這時利用相干、壓縮算符及等的性質推導出相干項。
  10. 2. using johnson curve distribution transformation method, describing nonnomal data to normal data or approximate normal data. at the same time, giving an example for illuminating this method

    利用了johnson分佈方法,擬合非數據,使之或近似數據,並給出了一個實例。
  11. The hardware circuit design include : industrial control computer configuration, selection of industrial control board type, design of the power supply and monitoring interface circuit, design of signal processing interface circuit ( the constant current source circuit, the time base signal processing circuit, the processing circuit for the signal to be measured ), design of panel control circuit, design of the system self - checking circuit, and etc. the program flow hart include : main program flow chart, system boot - strap self - checking program flow chart, manual static testing program flow chart, semiautomatic static testing program flow chart, automatic static testing program flow chart, dynamic testing program flow chart, transient testing program flow chart, source voltage and current monitor program flow chart, investigate function testing program flow chart, and etc. the measure system offers six working power supplies, the signal of time base, the signal of constant current source, sine wave signal and step to leap signal, and measures the frequency of the output pulse signal of the wide range pulse convert circuit accurately under three kinds of different test state ( static form, dynamic form and transient form )

    硬體電路設計包括:工控機配置、工控板卡選型、產品電源及監控介面電路設計、信號處理介面電路(恆流源電路、時基信號處理電路、被測信號處理電路)設計、面板控制電路設計、系統自檢電路設計等。程序流程圖包括:主程序流程圖、系統開機自檢程序流程圖、手動靜測試程序流程圖、半自動靜測試程序流程圖、自動靜測試程序流程圖、動測試程序流程圖、暫測試程序流程圖、電源電壓和電流監控程序流程圖、研究功能測試程序流程圖等。測試系統提供六路工作電源、時基信號、恆流源信號、弦波信號和階躍信號,並對三種不同測試狀(靜、動、暫)下大量程脈沖電路輸出脈沖信號的頻率進行精確測量。
  12. Normalization of logarithmic normal distribution through mapping transformation

    用映射將對數分佈
  13. According to the condition that most practical process data can not meet the needs of normal distribution and many process monitoring methods analyze data at a single scale, this paper presents an improved process monitoring method named as multi - scale independent component analysis ( msica ) based on wavelet transform

    摘要實際過程數據大多不滿足分佈的條件,且大多數過程監控方法對數據進行分析的尺度較為單一為此,本文提出了一種基於小波的多尺度獨立元分析的過程監控方法。
  14. The stochastic state feedback controller and the stochastic output feedback controller for networked control systems with long time delay are designed. the separation principle is proved to still hold in networked control systems with long time delay. without considering the noise of the system, this stochastic state feedback controller can render corresponding networked control systems exponentially mean square stable

    提出了將網路控制系統中的隨機時延轉化為確定性時延的實現條件和實現方法;設計了確定性網路控制系統的分步反饋控制器和基於狀預測的狀反饋控制器;設計了確定性網路控制系統的輸出反饋控制器和具有時延補償功能的多步預測控制器;模擬結果表明了各種確定性控制演算法是確的和有效的。
  15. It is his constant repositioning while looking for chances to make a forward run ( which he does 90 % of the time ) that makes it look like he is further up the pitch than his lower mentality strike partner

    是他不斷重新選位,尋求機會的向前跑,使得他比低攻心的同伴更加顯得跑位靠前。
  16. As to the video signal, alarm signal, control signal, are all weak electricity signal, exceedingly easily be subjected to the jam, in case the power supply system does not steady, wave propag ation is greatly, the harmonic content of power source overtops, the veins wave factors are great unduly, and even power source equipment breakdown, outputting abnormal, will be about to affect the video signal image effect, and dependability cuts downs to the security and alarming system. we adopt fast fu lye ' s mutation rule - fft alternatives, by the way of carrying fft alternatives to the local junction circuit, regulated power supply, ups ' s power source, and switch power source, thereby diagnose every degree harmonious wave content of power souse, and abnormal coefficient, compared to the normal working situation. thereby diagnose out the working condition of the regulated power supply, ups ' s power source, and switch power source

    如果有供電系統不穩定、波動大,電源的諧波含量過高,紋波系數過大,乃至電源設備損壞、輸出異常等情況出現,將會嚴重影響視頻信號的圖像效果,大大降低防盜系統的穩定性和可靠性,我們採用快速傅利葉原理,即fft,通過對市電、穩壓電源、 ups電源、開關電源等的電壓信號進行fft,從而得出信號中各次諧波的含量及信號畸系數,並將其與常工況下的參數進行對比,從而進一步診斷出穩壓電源、 ups電源、開關電源等設備的運行狀況;組成監控系統的設備長期處于工作狀,往往由於設備散熱條件不好、設備老化故障等原因導致設備表面溫度過高,從而影響設備的常運行,降低設備的使用壽命。
  17. This paper presents a novel single phase aeronautical static inverter. a novel combining two - transistor forward converter is presented and applied in the front of three - level hysteresis current controlled inverter, and a single - phase 6kva aeronautical static inverter is developed

    本文介紹了一種新型的單相航空靜止流器,電路通過一新穎雙管激組合式器作為三滯環控制電流型逆器的直流輸入前級,成功研製出6kva單相航空靜止流器。
  18. Here, the aircraft is in extreme flight conditions that is high angles of attack and high angular rates. it can encounter severe nonlinear effects. detailed descriptions of the flight dynamic, aerodynamic models, inverse dynamic and the choice of the control variable are given

    2 、應用經典的微分幾何方法研究了一般的飛行狀下飛機飛行的控制律,指出不利用矢量推力的飛行系統的控制方程一般都是可以逐步通過動反饋,適當的坐標則靜反饋等三個步驟得以線性化。
  19. Using fourier transformation computational method, the fir filter was designed. the acceleration signal dynamic error was revised through the fft 、 ifft and frequency correction in the operating frequency scope. the signal processing had been realized on dsp, and the signal data was really recorded

    應用傅里葉的計算方法,並且完成了fir濾波器的設計,通過傅里葉和頻率補償實現工作頻率范圍內加速度信號動誤差修,在dsp上實現了信號處理,真實地記錄了信號數據。
  20. Serial - parallel combined two - transistor forward converter is presented for high input voltage and high power application, and the operation principle of the topology is analyzed in this paper. all switches are turned off with zero voltage switching, and the two switches of them are turned on with zero current and zero voltage switching. the difference of input capacitances, conducting voltage drop of switches, duty cycle and windings of the transformer of the combined converter influences the voltage balance of the input capacitors

    本文介紹了雙管器的兩種穩定工作狀,詳細分析了帶lcd無損箝位網路的並?並組合式雙管器的工作原理,該組合式器中的開關管實現了零電壓關斷,並介紹了該電路拓撲的特點和lcd網路參數設計,採用pspice軟體進行了模擬和分析,最後,研製出一臺2 . 3kw樣機。
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