low electron density 中文意思是什麼
low electron density
解釋
低電子密度-
In this paper, we focus on the following three topics : ( i ) density distribution of dusty plasma in the low - pressure collisionless positive column the radial density distributions of electron, ion and dust particle in the low - pressure collisionless positive column are investigated with a fluid theory and a self - consistent dust - charging model
本文著重以下三個方面的研究： （ ）低氣壓無碰撞輝光放電正柱區塵埃等離子體密度徑向分佈本文採用流體模型和自洽的塵埃充電模型，研究了低氣壓無碰撞輝光放電正柱區的電子密度、離子密度和塵埃粒子密度的徑向分佈。 -
In the third group, the electron density of corneal collagen fibres were uneven with dilated and low electron - densed interfibral spaces
第二組中，角膜膠原纖維排列規則、連續，電子密度均勻，纖維間可見散在擴大的空隙，呈低電子密度灶。 -
Due to their high aspect ratios and small tip radii of curvature, carbon nanotubes possess marvelous electron field emission properties, viz. low turn - on voltage ( e0 ) and large emission current density ( je ), and have good potential for using as materials in electron emitters of flat panel display
由於奈米碳管具有極高的縱橫比與極小的尖端曲率半徑，因此奈米碳管有著超乎常態的電子場發射特性，低的場發射起始電壓與大的場發射電流密度，使其為電子場發射平面顯示器的良好材料。 -
Films of the cnx nanotube were produced by thermal decomposition on fe - coated si substrates, and their low field emission properties have been investigated. a high - emission current density of 1. 28ma / cm2 for an applied field of 2. 54v / u m was achieved, implying cnx nanotubes have better electron field emitter properties than the films of carbon tubes and bcn tubes do under same experiment conditions
860熱解乙二胺，在沉積有鐵催化劑的矽片上生長出cn _ x納米管薄膜，並進行了低場致電子發射特性測試，外加電場2 . 54v / m時，發射電流達到1 . 28ma / cm ~ 2 ，比相同實驗條件下制備出的碳管、硼碳氮管薄膜的場致電子發射性能優越。 -
Several influence factors to result plasma drift in hainan were analyzed. in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained, the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm, that a layer with very strong electron density and density grad was found during the recovery phase of the storm, its horizontal scale is beyond 100km and temporal scale is about 2 hours, this phenomena repeated 3 times continuously. a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found
本文較為系統地給出了海南地區電離層的參數變化特徵，特別是得到了一些暴時與以往不同的季節特性；第一次給出了海南地區的電離層等離子體漂移特徵，發現等離子體漂移暴時擾動在三個方向上有內在的聯系，得到了電場變化曲線；研究結果還表明海南電離層的半厚指數和形狀參數等與國際參考電離層iri - 2001存在很大差別；通過對強磁擾動事件期間的參數變化特性分析發現，在磁暴恢復相期間海南地區電離層底部存在一個電子密度非常大的高密度區，高密度區底部電子密度梯度隨高度急劇增加，該區域的水平尺度可達100公里以上時間尺度約為2小時，連續出現過三次，這是一個在海南從來未發現的新現象；研究還發現了暴時東亞地區電離層擾動會出現高低緯負相而中緯正相的現象。 -
The chromatin of sertoli cell condensed tightly and formed some low electron density areas, nuclear membrane dissolved, the intercellular junction dilated
支持細胞核染色質凝聚程度增加並出現不規則低電子密度區;核膜溶解，細胞間連接進一步拉開。 -
It can be seen from the experiment results that field emission performance of pure diamond is not very good. after eptitaxy and silver coating, its field emission performance can be well improved. it is expecting to realize low - voltage electron and high current density field emission
從實驗數據上看，電泳金剛石的場發射效果不十分理想，但經過外延生長和包銀處理后，場發射特性得到了明顯的改善，這說明金剛石表面修飾對金剛石場發射有重要意義。
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