負性變時 的英文怎麼說

中文拼音 [fùxìngbiànshí]
負性變時 英文
negative chronotropic
  • 負 : Ⅰ名詞1 （負擔） burden; load 2 （虧損） loss 3 （失敗） defeat Ⅱ動詞1 [書面語] （背） carry on th...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  1. Then, time - variant load characteristic is decomposed and the tva load model structure is proposed to reduce the effects on the time - variation of the amplitudes of the load. finally, the group algorithm and hypothesis testing strategies are applied to solve the problem of the time - variation of the load components

    進一步對負荷特性的時變性進行分解，提出了tva負荷模型結構以消除負荷幅值大小時變性的影響，最後，採用分組演算法和假設檢驗的工程應用策略，解決了負荷組成成分的時變性問題，從而最終從一定程度上解決了負荷的時變性問題。
  2. The dissertation proposes originally the idea of decomposing the time - variant load to solve this problem. first, the time - variant load is decomposed into the time - variant load characteristic and the time - variant load model due to the modeling method. second, the multi - curve approximation method is proposed to identify the load parameters, which to a great extent, reduces the effects on the time - variation of the load model from modeling method

    針對負荷的時變性，論文首次提出了將負荷時變性分解的思想，首先將負荷的時變性分解為負荷特性的時變性和由建模方法引起的負荷模型的時變性，然後提出了多曲線擬合參數辨識方法，很大程度上消除了建模方法引起的負荷模型的時變性。
  3. Can choose the " inertia delay ", or to prevent electrical transformer loading terminal

    可選購的"慣性延時" ，可防止電動機或變壓器負載端
  4. Delay trip multiple curves can choose the " inertia delay ", or to prevent electrical transformer loading terminal unnecessary trip

    多種延時跳閘曲線可選購的"慣性延時" ，可防止電動機或變壓器負載端出現不必要的跳閘
  5. The paper analyzes the non - lineal relations of the quantity of heat exchange and water flux of coil exchanger in part - load operating condition, the shortage of deciding the water flux in bypass pipe, the disadvantage that the operating condition of pumps and chiller ca n ' t be met with the load change of the air conditioning system in different operating condition of using pressure - difference bypassing control in primary water pump system. using load control method in the change of the operating condition of primary water pump system can realize that the load change is small and reasonable in the on / off condition of pumps and m m chiller by comparing load control method in primary variable - flow water pump system with pressure - difference bypassing control method, back water temperature control method

    本論文從目前空調工程中使用的變流量水系統入手，研究了盤管換熱器在部分負荷下水流量與換熱量的非線性關系，分析了文獻中介紹的旁通管通流能力選擇的不足之處和一次泵水系統採用壓差旁通控制時，工況轉換不能滿足系統控制要求的缺陷；比較了一次泵變流量水系統中壓差旁通控製法、回水溫度控製法、負荷控製法的精確性，並得出了在一次泵水系統的工況轉換時，採用負荷控製法能使冷水機組及其相應水泵在啟停時的負荷變化范圍較小，更符合建築物的冷量需求，節能效果較好的結論。
  6. In summer, load is affectd by meteorological elements greatly. based on multidimension time series approach, the car model is constructed, which could take account into the accumalated influence from temperature and inertia action from historic load, meanwhile, the advantage of the model is that its expreaasion is in the form of apparent function, which could provide us some quaqutive imformation existed between input variable and output variable

    本文以多維時間序列分析方法為基礎，成功地解決了未來日負荷與前些日負荷慣性變化的影響，以及氣象累計效應的影響顯性函數關系問題，從而為負荷預測人員掌握未來負荷與歷史負荷，歷史氣象要素與當日氣象條件之間的規律，提供了量化的分析基礎。
  7. Negative chronotropic action

    負性變時效應
  8. The characteristics of damping shows that the uncompensated parallel ac transmission line can release the coupling between the hvdc and generator and improve the damping of the system, hence the possibility of subsynchronous oscillation decrease. in such a system scheme, the hvdc system dominates the changes of damping due to the small magnitude of the damping provided by ac line. when the ac transmission line is compensated with a fixed series capacitor, the situation will be totally different

    其中，並列運行的無串補交流輸電線路可以緩解hvdc與其臨近機組之間的機電耦合程度，改善hvdc的電氣負阻尼特性，從浙江大學博士學位論文摘要而減輕機組發生次同步振蕩的危險性，此時系統的整體電氣阻尼特性由hvdc的性質決定;但若交流線路中存在串聯補償電容，則系統幅值較大的電氣負阻尼不僅可能使整流站機組發生次同步振蕩，逆變站附近機組同樣存在發生次同步振蕩的可能性，此時系統的整體阻尼特性由串聯補償電容的性質決定。
  9. After we apply the design scheme of this paper to a three - phase asynchronous motor, the simulating experiment result indicates that the digital control system realizes the motor ' s stable running and fast response during the start - up and unexpected change in load ; moreover, it realizes the good dynamical performance

    將本文的設計方案應用到一臺實驗用三相異步電動機上，模擬實驗結果表明本文所設計的基於tms320f240dsp晶元的數字控制系統能夠控制電機穩定運行，啟動及負載突變時反應迅速，被試電機動態性能良好。
  10. The bodily gestures, emotions and dialogues are all carried out persuasively. it is no wonder why he could capture various best actor awards with this film. lee young - ae speaks fluent english in the film and succeeds in building up a convincing image of the nnsc officer

    宋康昊是十分出色的性格演員，在《生死諜變》時不算十分突出，但在此片卻表現出色，沉實之餘不乏幽默感；其他演員如南韓士兵李秉憲和負責調查槍戰的中立國女軍官李英愛都表現稱職，為電影生色不少。
  11. The result shows that, when the full - bridge power converter is joined with boost / buck dc chopper in parallel, it can serve a dc voltage of over 340v and a power of 800w, meanwhile, as output voltage of the fuel cells changes due to loadings, the sliding - mode controller can cause more rapid responses and robustness to the dc bus voltage source

    實驗結果顯示，本論文之全橋式功率轉換器與升壓/降壓直流截波器並聯供電時，輸出電壓可達340v以上，輸出功率約為800w ，同時，當燃料電池之輸出電壓因負載而改變時，本論文所提出之滑動模式控制器能使直流鏈電壓具有較快速的響應及強健性。
  12. This paper establishes the linear model of hydro - turbine and deducts its transfer coefficients. then the optimized operation parameters are gained in the frequency disturbance and load rejection simulation. through comparing dynamically, this paper analyses the impact on its dynamic performance if some governing system parameter changes

    在研究小波動情形時，即系統在穩定工作工況點附近小瞬變時，可以把非線性系統進行線性化處理;本文建立了水輪機調節系統的線性化模型，推導了其中的傳遞系數;對水輪機調節系統的頻率擾動和機組突甩負荷工況進行了模擬試驗，整定了最佳調節參數;通過動態比較，分析了調節系統參數改變對其動態性能的影響。
  13. This thesis also have constructed mathematic model based on the analytic method, which used the load as input and the pressure as output, meanwhile, it have made theoretic analysis of time response. the theoretic analysis was highly agreed with the experimental result

    在對出口節流調速系統液壓缸兩腔壓力隨負載變化的動態特性的理論分析時，用解析法建立了以負載為輸入，壓力為輸出的數學模型，進行時間響應分析，其理論分析結果與試驗結果相吻合。
  14. Test results show that : ( 1 ) the amount of creep deformation during monotonic primary loading depends on strain rate before creep, creep stress level, and creep time ; ( 2 ) during monotonic primary loading, the stiffness increasing magnificently shortly after creep ; ( 3 ) the direction of creep will change from positive creep ; to neutral creep and negative creep during unloading, while during reloading, it will change from negative, to neutral and positive creep

    試驗結果表明： （ 1 ）在初始加載過程中，經過一定時間蠕變后黏土的強度有很大的提高； （ 2 ）在卸載過程中，隨應力值下降黏土的蠕變表現出由正蠕變、中性蠕變到負蠕變的逐漸轉化； （ 3 ）在重復加載過程中，隨應力值增加黏土的蠕變表現出由負蠕變、中性蠕變到正蠕變的逐漸轉化。
  15. The analysis and study on the dynamic efficiency of pmsm performing under the various loads. the influence of machine ' s parameters on dynamic efficiency and dynamic power factor is studied ; this has significant meaning for design of pmsm applied in the various load fields. the theoretical analysis and fem calculation fo air - gap magnetic field of pmsm is done

    在建立永磁同步電動機dq軸數學模型時，考慮了電機的鐵耗和雜散損耗，提高了模擬計算的精度，根據實測的負載變化情況，對永磁同步電動機的動態性能進行模擬，並研究分析了電機各參量對其動態平均效率和動態平均功率因數的影響，總結出變化規律。
  16. But in fact, most of these efforts try to get a good trade - off between the tracking characteristic and the anti - disturbance characteristic. when the controlled object changes as load changes, the control performance will manifestly deteriorate

    但其實質上是在系統的跟蹤特性和抗干擾特性取得較好的折衷，而且當被控對象隨負荷變化時，其控製品質要明顯下降。
  17. The operational characteristics with the different operational parameters, with different terminal cooling load of air conditioning system, with different heat exchange characteristics between underground u - tube pipe loop and soil, etc. have been studied. the operational characteristics of gshps within starting period, normal period and the period of variable operation patterns under different seasonal conditions has also been studied

    研究熱泵機組運行參數變化、空調末端負荷變化和地下埋管換熱器變化時土壤源熱泵系統的運行特性;開展不同季節和不同工況土壤源熱泵的啟動、正常和變工況運行特性的研究。
  18. Abstract : this paper deals with the simulation result analysis of three phase synchronous generator with rectified output with stator y connected, as well as with stator connected. the curves of overlap angle, displacement angle and power factor with load are presented, and the tendency of these curves are also described

    文摘:對整流負載時凸極同步發電機定子繞組及y聯結模擬結果進行分析，繪出反映整流特性的換流重疊角、位移角以及功率因數隨負載變化曲線，並對變化趨勢進行分析。
  19. A system of retarted functional differential equations as a predator - prey model with stage structure and dispersion is discussed. conditions for global stability of the system are given

    摘要討論了一類帶有擴散和具有階段結構與時滯的兩種群捕食系統，分析了該系統的非負不變性、邊界平衡點性質及全局漸近穩定性。
  20. This thesis analyzes the control principles of energy regulating ways in reefer units, compares the merits and demerits of these control methods in the outside working conditions of the changing burthen, and then puts forward the wvf, a entirely new energy saving regulative and control method. in addition, the thesis educes the heat response factors of container ' s round wall constructions by analyzing the dynamic heat transfer and adopting the method of heat response factors, and illustrates the refrigerated container ' s characteristics through an experiment on an empty refrigerated container

    本文通過分析目前冷藏集裝箱的能量調節方式，比較了這些控制方式在箱外負荷變化的情況下的能量調節優缺點，在此基礎上提出全新的變頻能量調節控制方式：通過對冷藏箱圍壁結構的動態傳熱性能的分析和熱反應系數法的應用，得出了各圍壁結構的熱反應系數；通過冷藏箱空箱降溫實驗分析了製冷系統在空箱打冷時系統的特性。
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