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target
相关语句
  靶标
    Development of a portable generator of infrared target
    便携式红外靶标发生器的研制
短句来源
    CCD Laser Collimation Measuring System for the Rotary Axis Excursion of Dynamic Target
    CCD激光自准直旋转靶标轴系跳动测量系统
短句来源
    Study on New Dynamic Target
    新型动态靶标的研究
短句来源
    The methods of auto collimation are introduced and the experimental methods and processes of measuring the precision of the shafting, the dynamic precision of thesingle rocker, and the dynamic precision of the optical moving target are explained in detail;
    提出了光学动态靶标精度的自准直检测方法,介绍了自准直的方法,详细说明了利用自准直方法检测光学动态靶标轴系精度、光学动态靶标单臂动态精度和光学动态靶标动态精度的实验方法和实验过程;
短句来源
    The infrared target in the real background is closely meshed into many equivalent triangle patterns by considering visual acuity, and the number of triangle patterns is determined.
    以三角形靶标的视觉锐度为基准,设计了无缝三角形网格划分算法,对典型识别概率的实测红外目标图像进行了等效三角形划分,确定了目标对应的等效三角形数目;
短句来源
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  靶材
    Fabrication of the PTC-BatiO_3 Target for Rf-sputtering
    PTC-BaTiO_3射频溅射用靶材的制备
短句来源
    We have grown PZT/YBCO structure on LAO substrate using pulsed laser deposition(PLD). The sintered target we choose is Pb(Zr0.94Ti0.06)O3 + 2%Bi2O3. YBCO and PZT thin films are prepared under the substrate temperature 710℃ and 570℃ respectively.
    采用脉冲激光溅射方法将PZT/YBCO沉积在LaAlO_3(LAO)基底上,所选择的烧结靶材是Pb(Zr_(0.94)Ti_(0.06))O_3+2%Bi_2O_3沉积YBCO和PZT薄膜的基底温度分别为710℃和570℃。
    STUDIES ON FILM PLATING PROCESS OF DOMESTIC ITO TARGET
    国产ITO靶材的镀膜工艺研究
短句来源
    Manufacture and application of sputtering target mterials
    溅射靶材的制备与应用
短句来源
    Trend in development and applications of sputtering target materials
    溅射靶材的应用及发展趋势
短句来源
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  “target”译为未确定词的双语例句
    Laser device to imitate pistol target practice
    激光手枪模拟打靶器的研制
短句来源
    A Study of the Nonlinear Filtering Problem in the Multi--Target Radar Tracking System
    雷达多目标跟踪系统中非线性滤波问题的研究
短句来源
    Research on Laser Imitating System for Rifle Target Practice
    激光模拟步枪打靶系统的研究
短句来源
    NEW STRUCTURE OF KALMAN PILTER AND ITS APPLICATION TO TARGET TRACKING
    Kalman滤波新结构及其在目标跟踪中的应用
短句来源
    Spatial and temporal study of shock waves generated by laser ablation for Ti target
    Spatial and temporal study of shock waves generated by laser ablation for Ti target
短句来源
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  target
Its absolute value (|A(u)|) measures the correlation between the signal u emitted by the radar transmitter and its echo after reaching a moving target.
      
As the main application it is shown that, in general, a localization operator possesses the Fredholm property, and thus its range is closed in the target space.
      
Such an estimate is both more representative of the target region and reduces the estimation variance when compared to estimates formed by any single bandlimited window.
      
These findings provide compelling evidence that DNA is the ultimate target of these drugs that act on the human genome.
      
CHEMICAL GENOMICS FOR FASTAND INTEGRATED TARGET IDENTIFICATION AND LEAD OPTIMIZATION
      
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As the total circumstance radiation which falls on the target being taken as the equivalent radiation of a blackbody at temperature To, the effect of environment radiation change on the sensibility equation of thermal imaging system is studied, and consequently the ratio emissivity ε of the target can be determined theoretically through the change of environment radiation. This paper gives the method and the measurements of temperature of the environment equivalent blackbody T0 Also a new method...

As the total circumstance radiation which falls on the target being taken as the equivalent radiation of a blackbody at temperature To, the effect of environment radiation change on the sensibility equation of thermal imaging system is studied, and consequently the ratio emissivity ε of the target can be determined theoretically through the change of environment radiation. This paper gives the method and the measurements of temperature of the environment equivalent blackbody T0 Also a new method is given about the thermometer measurement of the ratio emissivity of the target. When the environment radiation is not neglected, the problems are methodically and theoretically discussed about how to use a ratio radiometer to measure the real temperature T of the target and how to use the radiometer to measure the spectral reflectivity of visible light from ground target.

把落到目标上的总的环境辐射等效成一个温度为T_0的黑体辐射,研究了环境辐射改变时对热成象系统灵敏度方程的影响,从而从理论上证明了用改变环境辐射的办法可以测定目标的比辐射率。给出了用红外测温仪测定环境等效黑体温度T_0的方法和实验结果。给出了用红外测温仪测定目标比辐射率的一种新方法及实验结果。对于环境辐射不能忽略时如何用比辐射计测定目标的真实温度作了方法性和原理性的讨论。对于如何用测温仪测定地物对太阳的光谱反射率也作了方法性和原理性的讨论。

In this paper the self-sharpening effect of electron beam landing on the target in a vidicon and its influence on resolution of electron beam have been digitally analyzed with computer. The mathematical-physical models applied are as follows: The distribution of current density in electron beam is Gaussian; the energy distribution of electrons in beam is Maxwellian; and the signal-readout model is capacitor discharge model. When the model of cross section of beam is one-dimensional, the self-sharpening...

In this paper the self-sharpening effect of electron beam landing on the target in a vidicon and its influence on resolution of electron beam have been digitally analyzed with computer. The mathematical-physical models applied are as follows: The distribution of current density in electron beam is Gaussian; the energy distribution of electrons in beam is Maxwellian; and the signal-readout model is capacitor discharge model. When the model of cross section of beam is one-dimensional, the self-sharpening effect of beam in 1(1/4)" and 2/3" plumbicon, 1" Sb2S3 vidicon and 1" saticon are computed. Also their influences on AR (amplitude response) of electron beam have been computed. The influences of beam current, signal current, equivalent temperature of beam, target capacitor and velocity of scanning on the self-sharpening effect have been analyzed. When the model of cross section of beam is two-dimensional, the self-sharpening effect of beam in 1(1/4)" plumbicon, as an example, is given.

本文对Vidicon型摄象管中电子束着靶时的自变尖效应及其对电子束分辨能力的影响进行了计算机数值分析。所采用的数学物理模型为电子束中电流密度在横截面上的分布为Gauss分布;电子束中电子的能量分布为Maxwell分布;电子束读出靶面信息的模型为电容放电模型。在电子束截面为一维模型时,计算了1 1/4″、1″、2/3″PbO管(plumbicon)1″Sb_2S_3管和1″硒砷碲管(saticon)中电子束自变尖的情况及其对电子束幅度响应函数(AR)的影响。分析了束电流、信号电流、束等效温度、靶面电容、扫描速度等因素在自变尖效应中所起的作用。本文还以1 1/4″PbO靶管为例,给出了电子束截面为二维模型时,电子束有效着靶截面的自变尖情况。

in this paper, the resolving power limit with the SEM television pick-up tube at low light levels is calculated by use of quantum noise theory. Ways to improve the resolving power limit and the theoretical limitation for measurement are investigated.First, it is shown that, without the electrical noise of the television system, there exists in the television picture a theoretical resolving power limit at low light levels because of the presence of light quantum noise, its value depending on the photo quantum...

in this paper, the resolving power limit with the SEM television pick-up tube at low light levels is calculated by use of quantum noise theory. Ways to improve the resolving power limit and the theoretical limitation for measurement are investigated.First, it is shown that, without the electrical noise of the television system, there exists in the television picture a theoretical resolving power limit at low light levels because of the presence of light quantum noise, its value depending on the photo quantum effect of the SEM photocathode and the modulation transfer function of television system.Next, in consideration of the existence of television system noise, the paper shows that the actual resolving power limit at low light levels is much lower than the theoretical value, and it can be improved by increasing the target gain.Finally, experimental results are given, and these results are found to agree favorably with the theoretical values as developed in this paper.

本文应用量子噪声起伏理论计算了SEM摄象系统在低照度下的极限分辨率,并据此探讨了提高极限分辨率的可能途径及理论上可达到的探测极限。文中给出了实验比较。

 
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