asymmetric conductor 中文意思是什麼
asymmetric conductor
解釋
不對稱導體- asymmetric : adj. 不對稱的。
- conductor : n 1 指導者，向導者；護送者；處理人，管理人；指揮人；【音樂】指揮。2 （電車、公共汽車上的）售票員...
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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 -
These results are as follows. 1. the asymmetric cpw with conductor backing, the asymmetric cpw with wholly shielding and the asymmetric cpw with both finite substrate thickness and finite lateral ground planes are put forward, and the analyzing methods of these cpw ' s are presented
本論文給出了分析該模型的保角變換方法，歸納了該模型所能演變出的共面波導種類，推導出了該模型特性參數面向cad的封閉解析表達式。 -
This paper not only has studied asymmetric cpw ' s, but also fabricated firstly an asymmetric cpw with conductor backing in china. its relative dielectric constant is 9. 9. the characteristic impedance of these asymmetric cpw ' s is measured
本論文不但在理論上對多種非對稱共面波導進行了研究，而且製作了國內第一個具有金屬底板支撐的（相對介電常數為9 -
By the methods of conformal mapping, the closed - form analytical expressions for characteristic impedance per unit length and relative effective dielectric permittivity are deduced for the three asymmetric cpw ' s, and the analytical expressions of the electric field for asymmetric cpw with conductor backing is derived
根據本文所提出的模型，推導出了三種結構參數的具體特例，並給出了這些特例的特性阻抗、有效介電常數解析表達式。門）給出了分析有限介質基片厚度非對稱共面波導導體損耗的方法，並推導出其解析表達式。
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