pfc 中文意思是什麼

pfc 解釋
Pfc. ＝Private First Class 〈美國〉陸軍[海軍陸戰隊]一等兵。

  1. Recently the theory of executive control of pfc was emphasized, and also different behavior was adjusted by different executive function : the anterior cingulated cortex is thought to play a role in monitoring competition between two conflicting processes during task performance ; the dorsolateral prefrontal cortex participates in active suppres sion of inappropriate movement and behavior

    以前的研究表明：前額葉是工作記憶的重要部位，背外側前額葉皮層（ dosolateralprefrontalcortex ）與物體形狀、顏色的工作記憶有關，而腹側前額葉（ ventralprefrontalcortex ）與物體空間位置的工作記憶有關。
  2. Sir, pfc lee is running toward the enemy unit

    長官，一等兵李向敵人部隊跑去
  3. When will pfc lee join the mission

    什麼時候一等兵李可以加入這項任務？
  4. And pfc robert baker iii, were killed

    和一等兵羅伯特?貝克三世犧牲了
  5. Study of a half - bridge converter of single - stage pfc

    煤礦綜合自動化系統中信息實時發布技術的研究
  6. I don ' t care - pfc lee jin - seok

    -我不在乎-一等兵李振石
  7. - i don ' t care - pfc lee jin - seok

    -我不在乎-一等兵李振石
  8. I ' m pfc jo - i am yong - goo

    -我叫一等兵趙-我叫永固
  9. This paper gives a summary of practical hybrid pfc circuits

    本文對已經有實際電路的混合pfc作出歸納、總結。
  10. - i ' m pfc jo - i am yong - goo

    -我叫一等兵趙-我叫永固
  11. A total of 41 tetrodes penetrations were made in the pfc of two monkeys. a total of 92 task - related neurons were sampled and categorized as 5 types : visual signal related neurons, decision - making related neurons, go - movement related neurons, reward related neurons and multi - events related neurons

    3 .執行控制能力差的大鼠前額葉gabaarmrna表達較強，可能是中樞通過代償機制引起gabaqrmrna過表達，進而增加gabaar的含量，讓有限的gaba發揮更大的作用。
  12. On the theory, the predictive function control method based on the state space is discussed and the simulation results validate the pfc method ' s advantages on robust and anti - jamming comparing with pid method by computer simulation. the application research includes the application of the software of predictive function control ( apc - pfc ) and the software of the multiple - variables predictive control ( apc - hiecori ). the former were applied in the temperature control chlorinating process and ph control in the process of zymolysis of penicillin, the latter were applied in the advanced control of reclaim equipment of lox in china petroleum & chemical corporation yangzi petrochemical co., ltd

    本文主要從理論和應用兩方面對預測控制方法進行了研究，理論方面主要是從預測函數控制的基本原理出發，研究了一般情況下的基於狀態空間描述的預測函數控制策略，並通過計算機模擬驗證了pfc演算法比常規pid演算法具有更好的魯棒性和抗干擾性：在實際工業過程的應用上，又分為兩類演算法及軟體的應用，預測函數控制策略及apc - pfc軟體的應用主要以聚乙烯氯化過程的溫度控制和青霉素發酵過程的ph值控制為主，多變量預測控制演算法和apc - hiecon軟體的應用主要以揚子石化公司的液化氣回收裝置先進控制為主。
  13. But the traditional analog pfc has some insuperability shortcoming, with the development of the digital technique, more and more control algorithms canbe implemented in power electronics by the digital chips : microprocessors or digital signal processors ( dsp )

    因此功率因數校正技術（ pfc ）應運而生，成為電力電子技術領域一個新的研究熱點。然而傳統的模擬控制功率因數校正技術具有許多不可克服的缺點，如今隨著數字控制技術的不斷發展，越來越多的控制策略通過數字信號處理器（ dsp ）得以實現。
  14. This digital inverter amplifier ' s dc power is supplied by an ac / dc with pfc circuit controlled by 3854

    前級直流電壓由3854晶元控制pfc后的ac dc提供。
  15. A topological study of representative single - stage pfc converters are presented. in sigle - stage pfc approach, there are two important issues of concern. one issue is how to implement the input current shaper ( ics ). another one is how to control the energy - storage capacitor voltage below 450v

    本文對現有的單級pfc變換器拓撲進行了詳細的分析，指出在單級pfc變換器中，必須解決兩個問題：如何實現輸入電流整形和控制電容電壓在450v以下。
  16. Many researches supports that the dysfunction of pfc is crucial in schizophrenia and maybe it is related to gabaergic system : the reduced amount of gaba and gabaergic interneurons in pfc. the electrophysiological results shows 70 % neurons have increased activity but no significant increase in basic activity, half of silent neurons become activated in movement period after microinjection of bmi ( bicuculline methiodite ) into pfc

    電生理學研究顯示：在前額葉皮層應用bmi （荷包牡丹堿）后70的神經元放電頻率增加，背景活性（基礎放電頻率）卻無顯著增加，而在運動期無放電活動的「安靜」神經元， ，給予bmi後有一半在運動期變得激活，說明gaba的抑制作用在行為的執行中可能非常重要。
  17. This thesis describes the main characters and development of pfc technology, analyzes the means and basal theory of all kinds of pfc technologies on structure of the main circuit and control mode, and illustrates the necessary and importance of the digital pfc

    本文主要介紹了功率因數校正技術的發展及主要特點，從主電路的拓撲形式和控制方式分析了各類有源功率因數校正的方法和基本原理，闡明了數字控制pfc技術研究的必要性和重要性。
  18. Users must observe this limitation on pfc acceptability by conducting a reasonable evaluation of other substitutes to determine that pfc use is necessary to meet performance or safety requirements

    通過對其他替代品進行合理評價來決定全氟化碳的使用是符合性能和安全要求的使用者必須遵守全氟化碳可接受性的限制。
  19. The development of shear band was researched by analyzing the confining pressure - time history, volumetric curve and displacement field of pfc model

    通過分析圍壓時步曲線、體變曲線和不同階段的顆粒位移場的變化規律，研究了剪切帶的形成與發展規律。
  20. To reduce the inductor and the phase displacement between the input current and the input voltage simultaneously, multi - level ( ml ) converters are adopted as the pfc topologies in this thesis

    為了同時減小電感和輸入電流與輸入電壓間的相位差，本文提出採用多電平變換器作為pfc變換器的拓撲。
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