field emission method 中文意思是什麼

field emission method 解釋
場致發射法
  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  • emission : n. 1. （光、熱、氣體等的）發出，發射，射出，放射；傳播。2. （紙幣等的）發行；發行額。3. 發出物，放射物。4. 【醫學】排出；遺精。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed

    本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。
  2. In chapter two, we fabricated r - ni - fe / al2o3 nanocomposites successfully by using ball - milling mixing method plus hot - pressing process. meanwhile, their microstructures are characterized by x - ray diffraction ( xrd ) analyser, transmission electron microscopy ( tem ), field emission scanning electron microscopy ( fe - sem ) and brunauer - emmett - teller ( bet ). the results indicate that ni - fe particles are homogenously dispersed in the matrix in the composites

    在第二章中，我們採用高能球磨混合方法加上熱壓燒結工藝，成功制備了ni - 20fe al _ 2o _ 3納米復合材料，並通過x射線衍射儀（ xrd ） 、透射電鏡（ tem ） 、場發射掃描電鏡（ fe - sem ） 、比表面孔隙儀（ bet ）對該復合材料的微結構進行了表徵。
  3. Method of field emission microscope fem

    場發射顯微鏡法
  4. Method of field emission microscope

    場發射顯微鏡法
  5. Static - electric field of spindt cathode was analyzed and then field emission current was simulated. the method could direct the fabrication of spindt cathode. how the aspect ration and site density of cnts effect the field enhancement factor were also analyzed

    對碳納米管的頂端電場進行了計算，分析了其長徑比和生長密度對電場增強因子的影響，進而可以對場發射實驗進行指導。
  6. We make out the cnt thin film by the coating method, and then we test the thin film field emission properties 4. we make the sample that is get by the step 3 as the cathode. then we get the composed materials by electrophoretic method

    4 .以3得到的樣品為陰極，仍然採用電泳的辦法將沉積到碳納米管薄膜上，成功得到了碳納米管與金剛石超微粉的合成材料，並測試了其場發射特性。
  7. Electric field of the emission system of a liquid metal ion source was simulated, based on the conventional dynamic protrusion model and the widely used charge simulation method

    摘要發射系統是液態金屬離子源的關鍵部件之一，它的性能的優劣直接影響到整個離子源的工作穩定性和可靠性。
  8. Research on their field emission characteristics with fem and fim is helpful to the understanding of their field emission mechanism and the relationship of their end structures with their field emission properties. two methods of assembling swnts on tungsten tips such as physical method and chemical method were provided. the influence of different assembling methods on their field emission characteristics was analyzed

    本文給出了將單壁碳納米管組裝到鎢針尖上的兩種方法，即物理組裝方法和化學組裝方法，並分析了不同組裝方法對單壁碳納米管場發射特性的影響，討論了單壁碳納米管場發射像與場離子像之間的對應關系以及單壁碳納米管場發射電流的穩定性及其影響因素等。
  9. By changing the negative bias current density, gaseous ratio and total pressure, nanocrystalline diamond film is prepared by ion - assisted bombardment method at the substrate temperature of 700 ? 00 ? and mixture gaseous of ch4 and h2 the effect of growth parameters on the diamond film is studied. the diamond film presents very low compressive stress and excellent field emission character

    採用離子輔助轟擊法，以ch _ 4 、 h _ 2為源氣，襯底溫度為700 900 ，通過改變襯底負偏壓、 h _ 2和ch _ 4氣體比例以及工作氣壓，制備出納米金剛石薄膜，並對工藝參數對金剛石薄膜沉積的影響進行了研究。
  10. And the field emission measurement was carried out at a pressure of 10 - 4pa. diamond powders coated with sliver are deposited on ito glass using electrophoresis coating method, through a solution of powders in isopropyl alcohol

    利用葡萄糖的還原性將銀鹽中的銀還原出來，在超聲的條件下，還原出的銀將包覆在分散於溶液中的金剛石顆粒上。
  11. In this research, field emission performances from diamond film growing through epitaxy method and diamond powders coated with sliver have been studied

    本文研究了外延法生長金剛石薄膜和包銀金剛石顆粒的場發射特性。目的在於探索金剛石的場發射機制。
  12. Cnts was assembled onto tungsten tips using the physical method and the chemical method, respectively. the influence of the two methods on the field emission properties was also studied

    主要討論了物理組裝和化學組裝兩種組裝方法並分析了這兩種組裝方法對碳納米管場發射特性的影響。
  13. In this paper we seek to report on a novel method of utilizing field emission in acceleration sensor. emission currents are directly related to, among other parameters, the distance separating the emission cathode and anode

    本論文圍繞真空微電子加速度傳感器的相關基礎理論和關鍵製造技術進行了較系統深入的研究，重點研究了集成真空微電子加速度傳感器的結構、工作原理、力學、電學特性等。
  14. This paper also introduces the following contents according to principle of field emission and human visual system ( hvs ) : the display principle of fed panel and pulse width modulation ( pwm ), the reason why pwm was used in fed system, driving method of pwm and two pwm methods used in present fed sample

    此外，論文從場致發射原理和人眼視覺特性出發，介紹了fed顯示屏的顯示原理和脈沖寬度調制原理（ pwm ） ，分析了fed採用pwm工作方式的原因， pwm工作方式實現彩色fed顯示的驅動原理，還有目前本實驗室fed樣機所採用的兩種pwm方案。
  15. We make the nanosized diamond particles calculated on the cathode by electrophoretic method, and test the samples ( 5min and 15 min ) field emission properties separately

    並對在不同電泳時間（ 5min和15min ）得到的樣品的進行了場發射特性的測試。
  16. A novel patterning technology of fine - pitched carbon nano tubes pixels on photo resists layer has been developed by lift - off process. another new sealing technology named flat panel sealed method in vacuum chamber for fed or other electro - vacuum devices has also been developed. the screen printed carbon nano tube field emission display device fabrication process has been set up and a 2

    建立了一種採用光刻膠作掩模的直接剝離方法，並可獲得高密度線條分佈的碳納米管冷陰極；建立了一種電真空器件的真空原位平面封裝方法；建立了一整套較為完善的碳納米管場發射冷陰極印刷制備及場發射顯示器件制備的工藝流程，並成功獲得2 . 2英寸碳納米管動態顯示原理型樣機。
  17. It was proved that by using the method of surface score for cnts / ptfe cathode, the field - emission property was improved. 3

    通過表面刻劃的方法對碳納米管/聚四氟乙烯復合材料陰極薄膜進行了表面處理，改善和提高了碳納米管復合材料陰極的場發射特性。
  18. The present development of field emission characteristics of single walled carbon nanotubes ( swnts ) and zinc oxide nanowires at home and abroad was introduced, their field emission characteristics were studied with field emission microscope ( fem ) and field ion microscope ( fim ). several problems about electric field in the field emission have been simulated with finite element method

    本文介紹了單壁碳納米管和氧化鋅納米線場發射的國內外發展概況，用場發射場離子綜合測試儀研究了它們的場發射特性，並用有限元法模擬了場發射中與電場有關的幾個問題。
  19. Acoustics. noise emitted by machinery and equipment. measurement of emission sound pressure levels at a work station and at other specified positions. engineering method in an essentially free field over a reflecting plane

    聲學.機械和設備排放的噪聲.工作站和其它規定場所聲壓級的測量.反射平面上基本無聲波場的工程測試法
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