負感應性 的英文怎麼說

中文拼音 [fùgǎnyīngxìng]
負感應性 英文
negative tropism
  • 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...
  • 感 : Ⅰ動詞1 （覺得） feel; sense 2 （懷有謝意） be grateful; be obliged; appreciate 3 （感動） move; t...
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  1. Then a vsc controller using on - off valve and two potentiometers are designed for cushioning control system. it can realize the balanced, no shock, no reversing cushioning. experiments under different air pressure, load mass are carried out, and the results prove that the vsc controller can be used in pneumatic cushioning

    第五章首先介紹了變結構控制的原理和應用發展情況，然後針對本實驗系統設計了一個使用開關閥和端位位移傳感器的變結構控制方案，實現緩沖過程的平穩無沖擊和無回彈要求，並在不同氣源壓力、不同負載質量下分析了控制性能的變化，實驗結果證明緩沖控制採用變結構控制是可行的，並具有很強的魯棒性。
  2. The effect of electrostatic force of the drive voltage on the accelerometer had been researched when the bias voltage polarity is positive - negative configuration

    前人在研究驅動信號對傳感器的靜電力效應時，用偏置電壓極性為正?負配置的驅動信號進行研究。
  3. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  4. The work principle of dual stator - winding induction generator system, and the researches on practical application of dual stator - winding generator system are analyzed in detail. aimed at the work condition of wide rotor speed and optimization of static reactive power generator ’ s volume, the performance of dynamic state and static state and optimal control of high - voltage dc generator system based on dual stator - winding induction generator, are studied in this paper. these researches not only achieve the work characteristic of dual stator - winding induction generator system, but also set up the foundation of optimal design of dual stator - winding induction generator and engineering realization of dual stator - winding induction generator system used in wind generating

    本文闡述了定子雙繞組發電機的基本工作原理，基於matlab軟體建立了定子雙繞組感應電機發電系統的模型，並在此基礎上詳細分析了定子雙繞組感應電機發電系統的工作機理、影響兩套定子繞組容量比的因素等，從而摸清了該系統的特性，尤其是定子雙繞組感應電機高壓直流發電系統在變轉速、變負載下工作的特性，從而為該系統的工程實現奠定了重要的理論基礎。
  5. Static state analysis of voltage source induction heating inverter load - matching

    電壓型感應加熱電源靜電感應負載匹配電路靜特性分析
  6. It is validated that the design of induction machine vvvf control system has its rationality and feasibility. the distinct reduction of switching loss shows the efficiency of the three optimal switching patterns initiated. the research of this paper lays a solid foundation for the research of the high - speed motor control system to be continued

    空載和負載實驗表明文中所提出的感應電機調速方案的正確性和實用性，以及三種優化svpwm開關模式在減少開關損耗等方面的有效性，為后續的高速、超高速電機控制打下了理論和實驗基礎。
  7. Personality is the spirit of a composition however, from the earty 20th century, when chinese was started as an independent subject, until to the end of the 1990 ' s the personality of wrong to the position " chinese as a refernce " the students as the target of compositon teaching has always been ignored due to the influence of at the same time, it is also influenced by the type discphine, the sclools " administration for examination only and the motle of teaching operation

    個性是作文的靈魂。但由於「語文工具論」定位的偏差，同時受典型性原則、應試教育學校管理以及模式化教學操作的負面影響，從二十世紀初語文學科獨立設科開始一直到九十年代末，中學生作文個性一直是被忽視的作文教學目標。漠視個性的結果是中學生作文教學深深地陷入了困境而不能自拔，還給中學生的品德、情感和思維帶來諸多不良影響。
  8. Recent years, the using of piezoelectric sensors becomes a focus in novel biosensors research. the basic principle is that the characters of its oscillation are highly responded with the changes of the surface mass adsorption, or the physic characters in the reaction system including density, viscosity, conductivity and so on. a piezoelectric biosensor with a nanogram sensitivity could be constructed through a reasonable biological processing and structure designing to the piezoelectric quartz crystal

    近年來，壓電傳感器檢測技術逐漸成為生物分析中的研究熱點，其基本原理是利用石英晶體振蕩特性對石英晶體表面質量負載（質量效應）和反應體系物理性狀如密度、粘度、電導率（非質量效應）等的改變具有高度敏感的特性，通過對石英晶體進行適當的生物學處理和結構設計，構建出具有具有ng級檢測能力的生物傳感器。
  9. You will have the responsibility for all the planning and engineering for the site electrical power supply ( hv ， lv ) systems and its varied electrical networks and equipments ， with a particular emphasis on uninterrupted power to highly - sensitive manufacturing component ， computer environments and instruments and controls

    負責所有高壓和低壓供電系統的規劃和供電系統工程及其各類電網和設備，尤其需保證不間斷的電力供應以服務于德芯電子高敏感性的生產製造過程，計算機運行環境以及儀器的運行。
  10. Melatonin has a simple chemical structure, but it plays a decisive role in bodily functions, monitoring the work of the glands and organs, and regulating hormone production. it also controls over - stimulation of the sympathetic nerves to lower blood pressure and slow the heart rate, thus reducing the impact on the heart. it also alleviates mental stress, improves sleep, adjusts the body s biological clock, relieves jet lag, strengthens immunity, increases the body s resistance to germs and viruses, and prevents cancer and senile dementia

    褪黑激素的化學結構非常簡單，但是在人體內卻具有舉足輕重的作用：它監視著體內各種腺體器官的運作，指揮各種荷爾蒙維持在正常的濃度它可以抑制人體交感神經的興奮性，使得血壓下降心跳速率減慢降低心臟負擔它能夠減輕精神壓力提高睡眠品質調節生物時鐘緩解時差效應，而且具有加強免疫功能抵抗細菌病毒及預防癌癥老年癡呆癥等多種疾病的功效。
  11. However, there also exist more unsuitable behaviour and thinking : the fitting degree is small and low ; the expectation about future isn " t stable and uncertain, their psychological pressure is great ; contingency comes into being, farmers can " t be sure of the happenings, they have to follow others and think they were living happily in the old days an d now they aren " t ; cultural collision is great, they feel hard to follow the change of time ; the system is changing. their living pressure is large ; the felling of living on the edge is obvious with the emergence of gap of the rich and the poor ; they feel the human feeling is disappearing and become alone in the competing

    但在經濟體制改革中，農民表現出的不適應性行為與心理更多，既：對市場經濟改革的適應程度比較低；預期不確定、不穩定，農民心理負擔加重；偶然性出現，農民難以準確把握未來，懷舊、從眾行為與心理難以避免；多元文化沖突加劇，農民心理適應難度大；體制轉換，農民生存壓力增大；窮富差距拉大，農民邊緣感增強；競爭加劇，農民人情淡漠感、孤獨失落感加大等。
  12. The simulation results show that the power factor and efficiency of lim are much lower than that of rotary induction motor due to end effect and big air gap of lim. end effect force has a great influence on the thrust of lim. the performance of lim can be improved with the proper secondary structure, small air gap, big goodness factor or heavy load

    結果表明:受邊端效應及大氣隙影響，直線感應電機功率因數及效率較低;運行狀態下的邊端效應力對電機推力有較大影響;設計電機時選用合適的次級材料、減小氣隙、增大品質因數、增加負載都可提升電機的輸出性能，通過設計有效的控制演算法可使電機在額定滑差下具有較高的運行效率。
  13. And it can be controlled running at a rating slip, when its efficiency is the highest. then, simulation model of lim vector control system is constructed, which is proved accurate by simulation results under different speed and different load. and it is concluded that lim efficiency is lower under light load or low speed

    其次，建立了考慮邊端效應的直線感應電機矢量控制系統的模擬模型，不同速度和負載下模擬結果驗證了模型的有效性，得到了電機在輕載或低速運行時效率較低的結論。
  14. The influence of both synchronous generator and the distance from local power plant to load bus on load modeling are analyzed. when the influences are not negligible, the composite induction motor load model can not effectively describe the actual load. besides, the identifiability in this case is analyzed

    分析了同步發電機在綜合負荷中所佔的比例、地方發電廠離負荷母線的距離對負荷建模的影響，指出當同步發電機影響必須計及時，通常的感應電動機綜合負荷模型就不能正確描述區域負荷，並對由此引起的可辨識性及建模問題作了分析。
  15. The inductive voltage of the thunder and lightning and the produced disturbance voltage when the inductive load turns on or is separated from the power network is main disturbance pulse voltage

    摘要雷電感應電壓和感性負載接入或脫離電源電路時所產生的干擾電壓是電源網主要的干擾脈沖電壓。
  16. The parameter sensitivity of induction motor load model is studied. a new approach based on fuzzy c - means clustering is proposed for the classification of dynamic load characters

    分析了感應電動機綜合負荷模型參數靈敏度，介紹了模糊聚類的分類方法，提出了基於模糊c均值聚類的負荷特性分類方法。
  17. 3. simulation of dynamic voltage stability of the ( composite ) induction motor load in the context of large disturbances and analyses of the simulation results with their load characteristics

    3 .對大擾動下感應電動機（綜合）負荷的動態電壓穩定性進行了模擬，並運用其負荷特性對模擬結果進行了分析。
  18. The doubly fed induction machines speed adjustment system has the advantage of good speed adjusting behavior, low harmonic pollution, high reliability and cheap productive price. due to these characteristics, it is especially suitable for those situations with high voltage level, high power and not large speed adjustment range, such as wind machines and pump load

    感應電機的雙饋調速系統具有調速性能好、低諧波污染、可靠性高及造價低廉等優點，特別適合於高電壓、大功率且調速范圍不大的場合，尤其適用於風機、泵類負載。
  19. The finings are elaborated as the following : the stress level of teachers is moderate generally, however, further research shows that they are suffering more work stress ; they often use adaptation coping styles and sometimes these coping styles could be utilized beyond stress situations ; coping with the negative stress, they tend to adopt maladaptive coping ways ; they inclines to synthetically apply various ways and lay particular emphasis on each coping strategies under diverse contexts ; teachers from different background in different situations show that there are significant differences in different coping ways ; teacher " s general self - efficacy, social support, subjective stress and gender have different significantly predictive effects on different coping styles, and they might have more significantly predictive effects on certain type coping ways

    研究結果表明：中小學教師總體壓力水平為中等，但承受著較大的工作壓力；中小學教師普遍採用適應性應對方式並具有一定的跨情境性，但在應對負性壓力時，傾向于採用非適應性應對方式；在應對各種壓力情境時，傾向于聯合使用幾種應對方式並各有所側重；不同壓力情境下，不同人口學特徵的教師在不同應對方式上存在顯著性差異；一般自我效能感、社會支持、主觀壓力、性別對不同的應對方式具有不同的預測作用，他們可能分別對某種類型的應對方式更具重要性。
  20. Abstract : in accordance with the problem that some parameters can be identified easily and other parameters are difficult to be identified in the load modeling of three order induction motor, this paper elucidates the relations between the parameter sensitivity and the parameter identifiability through sensitivity analysis. the problem that deals with the effects on parameter sensitivity of the intensity of excitation is also studied. finally, the parameter identification strategy that is meaningful and valuable in modeling is advanced

    文摘:三階感應電動機負荷模型中部分參數易辨識，且辨識結果穩定，而另一部分參數難辨識，辨識結果存在較大離散性.通過對參數靈敏度進行分析，指出了參數靈敏度與參數易辨識性之間的關系，以及擾動強度與參數靈敏度從而參數易辨識性的關系.最後給出了對實際三階感應電動機參數辨識的分步方法：利用較小的擾動強度數據來辨識具有較大靈敏度的參數；利用具有足夠強度的擾動數據來辯識靈敏度小的參數
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