negative polarity 中文意思是什麼
negative polarity
解釋
負極性-
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。 -
Thank to the toner is negative polarity of almost laser printers. use the paper with positive polarity for laser printing and it is possible to conduct more toner and increase color saturation
幾乎所有的激光印表機都採用負極性的碳粉，選用正極性的紙張做激光列印能引導更多的碳粉至紙張表面上，達到增加色彩飽和度目的。 -
The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material
本文的主要工作和結論如下：在人工氣候室內，根據不同覆冰絕緣子正、負極性下的閃絡試驗結果，得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓；正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應；覆冰較少時，合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法，對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明，直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低，且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。 -
The variable polarity power supply circuit uses two stages full - bridge inverter, the former inverter is regarded as a constant - current source with fast dynamic response, and supplys energy for the second one, and the latter one is to produce variable polarity current excellently, and low - frequency pulse current by variable polarity power supply is used to reduce input energy and control the shape of weld bead while welding. a series of high - frequency pulse current is superposed on direct - current - electrode - negative ( dcen ) current through the high - frequency pulse power supply, which is used to compress the arc and improve process of crystallization
其中變極性電源採用二次全橋逆變結構，一次逆變提供快速的響應速率並給二次逆變提供能量，二次逆變提供良好的變極性性能，使輸出能量最優化，並用其低頻電流特性減小電弧線能量，控制焊縫成形;高頻脈沖電源提供的高頻電流疊加在反極性電流dcen上，利用電流的高頻特性壓縮電弧，改善焊縫金屬結晶過程。 -
To accept the current signal from high negative voltage circuit, the analog ground is raised to a certain positive voltage, which makes it possible for the signal amplitude to be compressed at the same time of its polarity reversion. a pi control program special for laser gyro current control is brought forward according to the conventional pid control method, in which the control signal is figured out corresponding to the difference between the sample and the reference value by turn of proportion - short step integral - long step integral. and at the end of this paper, a comparison of system performance on different conditions is made and the key elements influencing system performance are educed
利用集成a / d 、 d / a轉換器的新型晶元aduc824 ，實現了電流（電壓）采樣?數據處理?電流控制的閉環控制結構；地電位的抬升解決了a / d轉換器對負高壓迴路電流采樣時的輸入范圍匹配問題；控制信號反相的同時進行幅度壓縮，使得輸出調整電壓的解析度提高；根據常規的比例?積分?微分（ pid ）調節模型，針對陀螺系統的特性，給出了一種可以滿足系統要求、據采樣值偏差大小進行的比例?大步長積分?小步長積分、分層次比例?積分演算法；不同條件下系統穩流性能的對比、分析在論文最後給出，並據此找出了決定該系統穩流精度的關鍵因素，提出了系統的改進意見。 -
The result follows : ( 1 ) cg lightning in common thunderstorm with weak convective intensity is active at the developing and mature stages, the negative flash rate begins to decline gradually afterwards. the cg flashes in all lifetime are almost of negative polarity and very rarely positive polarity
分析結果表明：對流強度弱的普通雷暴在發展階段和成熟階段地閃比較活躍，在成熟之前出現地閃頻數的峰值，隨后地閃頻數逐漸減小，整個生命史中幾乎全為負地閃，極少出現正地閃。 -
The functions of the non - polarity field energy without polarity are very special. it removes negative disease information and preserves inherited, healthy, and positive information, and so it returns the body to the most positive state. this explains why spiritual practice can heal all diseases
無極能量的功能很特別，它可以消除否定疾病的信息，保留先天的健康的肯定的信息，所以它讓人體恢復到最肯定的狀態，所以說明了為什麼靈修可以治愈所有疾病。 -
Ag + and fe2 + caused the fluorescence of trp residues in g6pd quenched ; mg2 + and edta made fluorescence intensity of g6pd increased, this indicates that they caused trp residues wrapped and came to the inner core and located in the hydrophobic area ; while zn2 + or mn2 + made fluorescence intensity of g6pd decreased, this indicates that they made the conformation of g6pd relaxed and chromophores exposed to polarity environments. in native condition and in the far circular dichroic ( cd ) region, g6pd exhibited two characteristic negative band centered at 208nm and 222nm respectively, thus it is estimated to contain about 41. 2 % a - helix, 20. 6 % - pleated sheet and 38. 2 % random coil and turn
Ag ~ +和fe ~ （ 2 + ）引起色氨酸（ trp ）殘基的熒光淬滅； mg ~ （ 2 + ）和edta均使g6pd的熒光強度增強，說明它們使trp殘基重新包裹在分子內部而處于疏水的微環境中； zn ~ （ 2 + ）和mn ~ （ 2 + ）均使g6pd的熒光強度變小，說明它們使酶分子構象變得疏鬆，原來處在分子內部的發色團暴露在極性環境中。 -
Cross switching function of the positive and negative polarity of electrodes output
電極片具輸出正負極極性自交叉切換功能 -
If the pulses are of the same polarity, the i - v curve of varistor will become asymmetric, i. e., the positive degradation is less than the negative degradation
如果所受的突波為單一極性，則受突波侵襲后之樣品的i - v曲線呈現不對稱性，亦即正向劣化程度低於反向劣化程度。 -
In the dissertation, the effects of bias voltage polarity on the measurement and the normal operation are deeply researched when the voltage polarity is positive - positive, negative - positive and negative - negative respectively. the results are compared with the ones studied by others when the voltage polarity is positive - negative. the air damping of the laterally driven microstructures is slide - film air damping
本文通過改變偏置電壓極性分別為正?正、負?正、負?負，並和偏置電壓極性為正?負配置時進行對比，深入研究了電容式傳感器在不同偏置電壓極性下，驅動信號產生的靜電力對傳感器檢測和工作性能的影響。
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