電荷不平衡 的英文怎麼說

中文拼音 [diànhébùpínghéng]
電荷不平衡 英文
charge imbalance
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 荷 : 荷名詞（蓮） lotus
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 平 : Ⅰ形容詞1 （沒有高低凹凸 不頃斜） flat; level; even; smooth 2 （高度相同; 不相上下） on the same l...
  • 衡 : Ⅰ名詞1 （秤桿） the graduated arm of a steelyard2 （稱重量的器具） weighing apparatus3 （姓氏） a...
  1. The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail

    首先，在闡述i / q正交調制基本原理的基礎上，通過對誤差矢量和鄰近通道功率泄漏的詳細分析，定性、定量地討論了各種非理想電路因素（如相位不平衡、幅度不平衡、直流偏差等）對調制器性能的影響;其次，介紹了鎖相環的工作原理和基本組成部分，包括鎖相環的設計和環路濾波器的設計，特別詳述了電荷泵鎖相頻率源;第三，介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後，對整個直接射頻調制系統進行測試，結果基本上達到了課題要求。
  2. It has high selectivity in adsorpting water, polar molecule or polarizable molecule on account of the existing of mighty coulomb field and polar interaction in the internal of crystal cave of zeolite, the high electric field gradient and the uneven surface caused by the exposure of exchangable cation of equilibrium framework negative charge in framework structures

    由於分子篩晶穴內部有強太原理工大學碩士學位論文摘要大的庫侖場和極性作用，再加上骨架中大量平衡骨架負電荷的可交換陽離子的暴露造成的高電場梯度及表面的不均性，使其對水、極性分子及可極化的分子具有高選擇的吸附性能。
  3. On the base of widely investigating and researching, author deems that the conventional reactive power compensation devices used by consumer had many defects with among others : lower response time, remaining residual voltage on the compensation capacitors, and so on. because of existing improper trigging time, it is impossible to realizing balance compensation for 3 - phrase unbalance loads

    本文在充分調研的基礎上，認為目前採用的傳統的無功功率補償裝置存在響應速度慢、觸發時刻不合適、補償電容器上有殘壓、不能實行三相平衡補償、對電網產生污染、不能消除負荷本身產生的高次諧波等弊病。
  4. The inner - plant economical operation of lijiaxia hydropower station is studied based on the disadvantageous operating mode area of the units determined by school of civil engineering of tianjin university and the actual operating experience of the lijiaxia hydropower station in the last a few years

    摘要以天津大學建築工程學院確定的李家峽水電站機組的不利工況區為依據，以近幾年來該水電站的實際運行經驗為參考，在綜合考慮機組初始運行狀態、機組振動特性、機組出力、下泄流量、水庫蓄水量和電網負荷平衡等因素的基礎上對李家峽水電站的廠內經濟運行進行了研究。
  5. As a result, this paper gives a corresponding harmonic prevent me asure. finally, according to the asymmetrical characteristics of electrical traction loads, this paper studies the negative sequence currents under different loads and makes a piece of advice for reducing the negative sequence currents produced

    最後，還根據電力牽引負荷三相不對稱的特點，分析了阻抗匹配平衡變壓器在不同負荷條件下的負序電流，對如何減小電力牽引負荷的負序電流提出了一點建議。
  6. In a power generating unit system, the boiler turbine and generator form an integrity, because the adapting load capability is quiet different between boiler and turbine, accordance control system is used to balance the output of two system with different dynamic character

    在單元制發電系統中，鍋爐、汽輪機發電機是一個整體，但鍋爐、汽輪機適應負荷的能力差異非常大，如何平衡兩個動態特性不同系統的出力是協調控制系統的任務。
  7. This paper intends to illustrate by the calculation of concrete examples that conductors are different in their electric charge intensity although they are identical in their surface curvature

    摘要通過具體實例計算表明，在靜電平衡的條件下導體表面雖然曲率相同，但電荷面密度卻不一定相同。
  8. The aim of this study is to investigate theoretically the possibility for activation of small mammalian myelinated nerve fibers without activating larger ones when stimulating a nerve fiber bundle with a monopolar point electrode using biphasic pulses, which can reduce the electrochemical damage resulted from stimulation pulses to nerve fibers. a simulation system for studying the electrical properties of mammalian myelinated nerve fibers was built based on a simple infinite and homogeneous volume conductor model. by use of an asymmetric but charge - balanced stimulation waveform, the sensitivity of excitation and blocking threshold of nerve fibers to fiber diameter, electrode - fiber distance was calculated. the results show that selective activation of small mammalian myelinated fibers may be possible in a region at some distance from the electrode using biphasic pulses

    本研究的目的是要從理論上探討利用單電極雙向脈沖刺激實現哺乳動物神經纖維選擇性刺激， （即當刺激一束神經時，不興奮粗神經而興奮細神經）的可能性.雙向脈沖刺激可以降低刺激脈沖對神經纖維產生的電化學損傷.為研究哺乳動物有髓神經纖維的電特性，建立了一個基於簡單的無窮大、各向同性的容積導體模型的模擬系統.利用該模擬系統，採用「不對稱但電荷平衡」的雙向脈沖刺激，計算了神經纖維的興奮和阻斷閾值與纖維直徑、纖維-電極間距離的關系.結果表明：在距電極一定距離內採用該雙向脈沖刺激模式確實可以實現哺乳動物有髓神經纖維的選擇性興奮
  9. Moreover, the diffraction peak shifts toward high angle as sr content increases. it is ascribed to the substitution of la3 + by sr2 + in lscf increases the average radius of a ions and causes a charge imbalance

    且隨著sr含量的增加，衍射峰值向高角度方向稍有偏移，這是由於低價sr ~ _ （ 2 + ）取代高價la ~ （ 3 + ）增加了a位離子的平均半徑，同時引起電荷不平衡。
  10. Because of forecasting reactive load at first, it can detect the change of voltage at low - voltage bus from the change of reactive load or the change of voltage at high - voltage bus, then it can decide that adjusting transformer tap or capacitor switch, and avoid blindly and deficient adjusting. on the condition the reactive power is balanced and voltage qualified, it can realize the switching times of loaded taps and capacitors being efficiently decreased

    由於預先預測出無功負荷，提前了解了無功功率變化的趨勢，可以有助於判定低壓母線電壓變化是由無功負荷變化引起還是由高壓側電壓變化引起，從而適時決定是調有載調壓變壓器分接頭還是投切電容器，以此避免了盲目和不充分的調節，實現在保證無功基本平衡和電壓合格率的前提下，減少有載調壓變壓器分接頭的調節和並聯電容器組的投切次數。
  11. Finally, how the pwm - fcl contributes to the system stability, three - phase load unsymmetry and the transmission capacity is discussed. and how to decide a reasonable compensation rate of the pwm - fcl is also proposed

    最後討論了pwm - fcl對系統穩定、三相負荷不平衡的作用以及它對輸電線路功率傳送能力的影響，並說明在設置其補償度時所應該考慮的問題。
  12. Many factors discussed in the article like the static force between the drugs and melamine formaldehyde / poly ( styrene sulfonate sodium salt ) ( mf / pss ) complex inside the capsules, the concentration balance between outside and inside the capsules, and the drugs " solubility will affect the deposition and release behaviors

    這是因為不同環境下，小分子藥物和具有自發沉積性質的膠囊內的三聚氰胺甲醛聚苯乙烯磺酸鹽（ mf pss ）復合物之間的電荷作用，膠囊內外藥物濃度的平衡和藥物自身溶解度等多重因素造成。
  13. According to the characteristic of nine - area diagram of substation vol / var coordinated control, this system gives the defination of fuzzy sets and the degree of membership of input / output variables, and designs corresponding control rules. the results of simulation demonstrate the system can satisfy the constrains of the day - adjusting times of the switching of on - load transformer and paralleled compensation capacitors, and ensure voltage quality, reactive power basical balance. considering the var requirement in different load time period and the control demand in load saltation, a improved control scheme is provided. the results of simulation show the improved scheme can meet the demand of vol / var in different load time period, protect the wrong operation when either voltage or reactive power appears saltation, and decrease the times of regulation of the switching of on - load transformer and paralleled compensation capacitors finally, a background software module of substation vol / var coordinated control is designed, based on the supervisory control and data acquisition system of substation

    模擬結果證明該系統能在各種負荷條件下確保電壓合格和無功基本平衡，且能滿足變電站對有載調壓變壓器分接頭日調節次數和並聯補償電容器組的日投切次數的限制。通過考慮不同負荷時段對無功功率的需求和負荷突變情況下的控制要求，對上述模糊控制策略進行了改進，模擬結果證明改進后的控制策略能滿足不同負荷時段對電壓和無功的要求、抑制電壓或無功突變情況下的誤動作，且有效地減少了有載調壓變壓器分接頭和並聯補償電容器組的調節次數。最後基於變電站scada系統設計了一后臺電壓無功綜合控制軟體模塊。
  14. Moreover, owing to rapid use of large numbers of nonlinear or impactive loads in power system, many power quality problems will be caused, such as voltage sag, swell, unsymmetry, flicker, fluctuation, harmonic and so on

    然而，隨著電網中沖擊性、非線性負荷的不斷增加，導致電網電壓波形發生畸變、波動、閃變和三相不平衡等電能質量問題卻越來越嚴重。
  15. With the development of power electronic technology, much nonlinear, impactive and imbalance load emerges in power system. as a result, power quality has deteriorated. the problem of voltage fluctuation and flicker, one issue of power quality, becomes more and more serious

    近年來，依託電力電子技術發展起來的用電負荷日益增多，由於它們非線性、沖擊性及不平衡的用電特性，造成諸多電能質量問題，電壓波動與閃變就是其中之一。
  16. In recent years, current rectifiers, frequency converters, arc furnaces and other power electronic devices etc have been increasingly used in power network. with nonlinear, impactive, unbalanced characteristics, they generate lots of harmonics and cause distortion in power network current or voltage

    近年來，配電網中整流器、變頻裝置、電弧爐以及其它電力電子設備等的應用不斷增加，由於這些負荷具有非線性、沖擊性和不平衡的用電特性，引起供電網中的電流（電壓）畸變，產生大量諧波。
  17. As technique of power electronics develops, the load with nonlinear, impactive, unbalanced characteristics such as current rectifiers, frequency converters, arc furnaces have been increasingly used in power network in recent years. they generate lots of harmonics and cause distortion in power electrical network current ( voltage )

    隨著電力電子技術的發展，近年來電網中象整流器、變頻器、電弧爐這樣具有非線性、沖擊性和不平衡用電特性的負荷不斷增加，引起供電網中的電流（電壓）畸變，產生大量諧波。
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