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   emission area 的翻译结果: 查询用时:0.186秒
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emission area
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  发射面积
     The value of the emission area calculated by the F-N theory is in agreement with that obtained from the TEM observation in the order of magnitude.
     根据F-N理论算得的场发射面积与TEM下观察到的突起的面积在量级上一致。
短句来源
     In an ideal parallel plane electrode system,where field intensity is uniform(=U/d) among the CNT surface and so is emission current density,total current is proportional to total emission area.
     对于理想的平行板电极系统,其表面电场强度均匀(U/d),发射电流密度、总电流与发射面积成正比;
短句来源
     In this paper we reported a ring-shaped LaB_6 cathode with a large emission area of 115 mm~2.The direct emission current density of the LaB_6 was more than 40 A/cm~2 when the temperature of LaB_6 was 1 873 K.
     介绍了一种用于管状电子束发射的大面积LaB6阴极电子源,其阴极发射面积为115 mm2,LaB6发射体用钼作基底,在LaB6与钼之间用耐高温的碳化物粘合剂填充以防止LaB6与钼发生反应。
短句来源
     The field emissionproperties were studied, and the work function, actual emission area and density of emission spot were calculated.
     并且研究了非晶碳薄膜的场发射特性,计算了薄膜的功函数、实际发射面积和发射点密度。
短句来源
     In our paper,the influence of temperature and voltage on FEA device’s stability and reliiability has been discussed,and we have also studied the relationship between emission surface work function Φ,emission area S,emission field E and FFA’s stability,reliability.
     本文分析了温度、电压等因素对FEA器件稳定和可靠性的影响。 并研究了尖端发射表面功函数Φ、尖端发射面积S和尖端表面场强E与器件稳定性和可靠性的关系。
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  “emission area”译为未确定词的双语例句
     The emission area of the devices is ~1 cm 2. The EL starting voltage is in the range of 4~30V and the current is around 300mA.
     发光器的面积为 1cm2 ,启动正向电压在 14~ 30V ,电流约 30 0mA。
短句来源
     The field emission characteristics were measured by a diode structure using diamond film as cathode. The emission current was 5 μA under 6 V/μm (emission area is 4 mm 2).
     采用以金刚石薄膜为阴极的二极管结构测试了场发射特性 ,在 6V μm的电场下 ,场发射电流为 5 μA。
短句来源
     For DBR consisting of InGaAsP/InP material system, the critical ratio r/a (r: air hole radius, a: lattice constant) is 0.28in the case of a = 5jum and emission area formed by a single point-defect and the ratio is 0.10 in the case of a = 3/um and emission area formed by seven point-defect.
     DBR采用InGaAsP/InP结构,当晶格常数a为5.0μm,单个点缺陷构成光出射区时,空气孔半径r与晶格常数比值r/a的临界值为0.28;
短句来源
     1. Based on pig's behavior theory, used some hypothesis and subjective estimate to analysis emission area;
     1.在猪的行为学基础上,对尿坑挥发面积的分析采取了主观判断和一定的假设。
短句来源
     Measurement of the emission by I-V characteristics at the pressure of 10~-6Pa range revealed that all coating layer improved the emission property exceptAu, Mo and TaN coating FEA shown the highest mission current. The effective surfacework function and effective surface emission area were evaluated from Fowler-Nordheim theory.
     在10~-6Pa下测量具有不同覆盖膜的硅FEA二极管的I-V特性,测量结果表明除Au和Mo外,其它覆盖材料都对FEA电子发射性能有改进,经TaN覆盖的FEA发射电流最大。
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  相似匹配句对
     In the area, J.
     这方面,J.
短句来源
     Methane Emission from Rice Paddy Field of Taihu Area
     太湖流域单季稻的甲烷排放研究
短句来源
     Large area screen-printingnanodiamond film cathode for field emission
     大面积印刷纳米金刚石薄膜的场致发射的研究
短句来源
     In the study area .
     长期以来,在教师教育问题研究中,研究者们关注的是中小学教师的发展。
短句来源
     Positron Emission Tomography
     正电子发射断层显像
短句来源
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  emission area
The experimental setup is described, and the results obtained in the pulse control of an emitter current through modulation of the emission area are presented.
      
The difference in intensity of the flare emissions is further augmented by the extensiveness of the emission area in the brighter wing.
      
(2) The hot emission area may appear smaller to a distant observer when emitted X-rays propagate through electron-positron plasma created in the magnetosphere.
      
The physical basis of this procedure and of the terms "average" work function and "emission area" are analyzed from the experimentalist's point of view.
      
smooth flat surface and uniform work function across emitting surface, constant emission area and a uniform distribution of the applied field over it).
      
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In this paper, the instrument, principle and programm design of the computer graphic treatment for LED are presented in detail. Using this method and systems, the effective emission area for LED is measured accurately. The dependences of the injection current is or stripe width S and the half-full width W_(2/1) of the optical radiant intensity profile are calculated in theory. They well agree with the experimental measurement, and the accuracy of the experimental results are verified. A programme of graphic...

In this paper, the instrument, principle and programm design of the computer graphic treatment for LED are presented in detail. Using this method and systems, the effective emission area for LED is measured accurately. The dependences of the injection current is or stripe width S and the half-full width W_(2/1) of the optical radiant intensity profile are calculated in theory. They well agree with the experimental measurement, and the accuracy of the experimental results are verified. A programme of graphic treatment is designed. The picture of the effective emission area, optical intensity three dimensional profile, and its equi-amplitude contours can be drawn. The longitudinal waveguid profile which is very useful in practice can also be calculated and drawn. Finally, the experimental results are discussed in detial.

本文较详细地介绍了光源器件的计算机图象处理系统的构成、原理和程序设计。应用本方法可准确地测定光源器件发光有效面积。文中计算了注入电流I_s和条宽S与光强半宽W_(1/2)的关系,与实测结果作了比较,证实了测定结果的准确性;设计了一套图象处理程序,可方便地绘制发光有效面积图、光强分布三维立体图及其等截面图,还可绘制和计算出富有实际意义的光源器件纵向波导分布图。

A new method, the simulation method of gradual magnification, was proposed. It Can be used to measuare potential distribution around a field emisson tip. The field emission current of a real field emission system was measured The potential distribution of the system was also measured by using the simulation method of four times magnification, and so the distribution of the current density around the tip, the total current and the emission area were calculated. A comparison of the currents measured and...

A new method, the simulation method of gradual magnification, was proposed. It Can be used to measuare potential distribution around a field emisson tip. The field emission current of a real field emission system was measured The potential distribution of the system was also measured by using the simulation method of four times magnification, and so the distribution of the current density around the tip, the total current and the emission area were calculated. A comparison of the currents measured and calculated showed little defference so that it can be said that the proecise determination of the distribution of the field on an irregular surface of a tip.

本文提出一种精密确定场发射尖端附近电位分布的新方法——逐次放大逼近模拟法。对一实际场发射系统,一方面实测了场发射电流;另一方面则用该法对系统的电位分布,进行了四次放大逼近模拟测量。并由此计算出尖端的电流密度分布、发射面积和发射总电流。将两电流进行比较,结果是一致的。表明:用这种方法精密确定尖端场分布,特别是测定不规则表面的场分布是方便有效的。

Fogwater samples were collected in Fanjin Mountain, a natural reserve in northeastern Guizhou several hundred kilometers away from, major emission areas. The pH values of fogwater were found to be in the rage of 4.20 to 5.56 with a mean value of 4.54 while the average pH of lainwater at the same site was notably higher (5.69) . The average concentrations of SO42-, NH4+ and Ca2+ in fogwater reached 256,234 and 171μeq/l, respectively, about two to three times higher than those in rainwatei. The fact that...

Fogwater samples were collected in Fanjin Mountain, a natural reserve in northeastern Guizhou several hundred kilometers away from, major emission areas. The pH values of fogwater were found to be in the rage of 4.20 to 5.56 with a mean value of 4.54 while the average pH of lainwater at the same site was notably higher (5.69) . The average concentrations of SO42-, NH4+ and Ca2+ in fogwater reached 256,234 and 171μeq/l, respectively, about two to three times higher than those in rainwatei. The fact that these three ions are the main ionic species in both fogwatei and rainwater,and the air in Fanjin mountain is rather clean, it is suggested that there exists long range transport of air pollutants from central Guizhou or Hunan Province to this area.

通过对贵州省梵净山雾水,雨水的酸度和化学组分的研究,发现雾水的pH值在4.24—5.56之间(均值4.54),比雨水酸度(pH均值为5.69)高十倍以上。此外,雾水中的Ca~(2+)和NH_4~+含量也高于雨水。实验结果还表明:梵净山雾水与贵州中部重酸雨区降水一样,关键离子组份是H~+、SO_4~(2-)、Ca~(2+)和NH_4~+.因此,梦净山的酸雾可能与贵州中部、四川东部等地排放的大气污染物向该地区的中、远距离的传输有关。

 
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