negative impedance 中文意思是什麼
negative impedance
解釋
負阻抗-
In acid copper sulphate solution, the nc copper has a more negative corrosion potential which is decreasing with reducing the grain size and diffusion impedance was only found in the as - prepared and as - annealed at 180 ? nc copper due to the diffusion within the pores and channels on the surface. both the tafel plots and eis study demonstrated that the nc copper exhibits a higher corrosion current and lower polarization resistance than its mc couterpart
在酸性硫酸銅溶液中，納米晶銅的腐蝕電位比微米晶銅要負，並且隨著晶粒尺寸的減小而降低。 eis研究表明，未退火的和180退火的納米樣品中發現了擴散阻抗，與表面孔洞和通道中的擴散有關。極化曲線外推法和電化學阻抗研究都表明納米晶銅的腐蝕電流比微米晶銅高，而極化電阻要低。 -
In a ccp system, there is a discontiguous characteristic on tuned substrate self - bias. when the impedance between substrate and ground was made increasingly inductive, a large negative dc potential developed on the substrate
在ccp （ capacitivecouplingplasma ）中調諧基片偏壓具有不連續變化現象，當基片之間為漸增的感抗時，基片上會產生漸增的負偏壓。 -
Methods impedance pneumoplethysmogram ( ipg ) and impedance respirogram ( irg ) were detected in 64 cases of patients with phd, and investigate dmf rheogram positive rate, also analysed various parameters of ipg in positive and negative groups
方法對64例肺心病患者進行呼吸阻抗圖和肺阻抗圖檢測，分組統計膈肌疲勞圖形陽性率；並對陽性組和陰性組進行肺阻抗圖各參數比較。 -
The negative sequence current of impedance - matching balance transformer
阻抗匹配平衡變壓器的負序電流 -
Negative impedance converter
負阻抗變換器 -
Unified power flow controller ( upfc ) is one of the most powerful and most promising controllers of facts. if we use upfc to control the transmission parameters, terminal voltage, line impedance and phase angle in normal situation and use it to compensate zero sequence and negative sequence currents when one of transmission lines is cut off, we can implement two phases operating in high voltage transmission lines, which can improve stability and reliability for the transmission system
統一潮流控制器（ upfc ）是功能最強、最具發展潛力的靈活交流輸電系統（ facts ）控制器之一，如果在常規條件下，用upfc實現輸電線路的電壓調節、移相、潮流控制、阻尼振蕩等功能，在發生單相永久性接地或單相斷路故障時，由傳統的三相跳閘改為單相跳閘，用upfc的並補來濾除兩端系統的零序和負序電流，用upfc的串補來提高輸電線的傳輸功率，以實現兩相長期運行，那麼輸電系統的穩定性、可靠性將大大提高。 -
A pulldown resistor to the negative rail will allow the output to approach that rail ( provided the load impedance is high enough, or is also grounded to that rail ), but only slowly
一個下拉電阻器將允許輸出迫近迫近該電源軌（所提供的負載阻抗足夠高，或負載也是接地的） ，但這樣速度較慢。 -
In order to understand the lamp ' s negative incremental impedance of characteristics and analyze the stability of ballast / lamp system clearly, the low - frequency ballast system stability with closed loop are analyzed based on the hid lamp frequency - domain model in chapter ii
為了更好地理解燈的負阻特性並分析電子鎮流器系統的穩定性問題，論文第二章著重從燈的頻域模型出發分析了閉環控制下的低頻方波電子鎮流器系統的穩定性問題。 -
First of all, single port negative impedance oscillator is analyzed in the thesis. a design method of gunn diode vco is introduced and an vco chip using gunn diode is fabricated. the substrate of the vco chip is gaas with dimension of 4. 4mmx3. 9mm
本文首先對單埠負阻振蕩器進行了分析，給出了gunn二極體負阻振蕩器的設計方法，設計出了一個變容管調諧平面微帶gunn二極體vco晶元，該晶元以gaas為襯底，尺寸為4 . 4mm 3 . 9mm 。 -
The negative effect which is resulted by the object - relational impedance mismatch is all through the development cycle. this paper also introduces the method to develop some useful tools which can generate codes automatically based on object persisting framework
此外，由於對象阻抗不匹配對應用系統的消極影響貫穿于系統的設計開發階段，本文還詳細敘述了基於持久層框架的輔助開發工具的設計及實現過程。 -
Negative sequence impedance
零序阻抗 -
It simplifies the optimization of feedback components and accelerates the design of negative impedance oscillator. a 14ghz mesfet vco is designed and simulated with hp ads
根據該設計理論，用hpads進行了14ghzmesfetvco的設計與模擬，並對設計的電路進行了製作與測試。 -
Compared with gunn diode, mesfet has the advantage of high efficiency, flexible design and easy to integrate. the two ports negative resistance oscillating network is analyzed and an extremum - line model of microwave transistor oscillating network output impedance is developed
Mesfet較之gunn二極體在vco電路中有效率高、設計靈活性、便於集成等優點，所以本文著重介紹了變容管調諧微帶結構mesfetvco的研製工作。 -
Those algorithms are reviewed, and their disadvantages are proposed. this thesis provides a new approach for protecting power transformers. the technique uses positive - and negative - sequence impedance and variation of magnetizing impedance, where phase voltages are used
本文從機理上對變壓器保護進行新認識，將電壓量引入了變壓器保護中，採用了基於序基頻阻抗突變量和勵磁阻抗變化的變壓器保護方法。 -
Having lower and unified positive ( negative ) and zero sequence impedance, which benefits to improve the power supply quality
具有較低而有均勻的正（逆）充和零序阻抗，它有利於改善供電品質。
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