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The analytical solutions of the gain,dispersion and population difference in the steady state of an open ladder lasing without inversion(LWI) system are at first given when the phase fluctuation of the driving field is considered.Then the effects of the d
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给出了有驱动场位相涨落的开放的梯型无粒子数反转激光(LWI)系统增益、色散和布居数差的定态解析解,进而用得到的数值计算结果分析了驱动场位相涨落对增益、色散和布居数差的影响.研究结果表明,驱动场位相涨落将导致有限线宽;随着线宽的增加,系统增益单调地减小,但系统色散的变化并不是单调的,当线宽取某个值时,色散有极大值;线宽的变化不能导致无反转激光向反转激光的转变. |
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The analytical solutions to 1D Schr?dinger equation (in depth direction) in double-gate (DG) MOSFETs are derived to calculate electron density and threshold voltage.
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摘要推导了双栅MOSFET器件在深度方向上薛定谔方程的解析解以求得电子密度和阈电压。 |
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The analyzable conclusions of the regression model between crown diameter and age show that the utility of unit step function model in the crown growth process with the changing point is better than the usual regression methods, and the unit step function
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对树冠与林龄的回归分析结果表明：阶跃函数模型在具有变点的桉树林分树冠生长过程中的应用效果优于一般回归拟合模型，可较好地解决分段拟合模型在变点上的不连续问题。 |
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The analyzed low-pressure center at the surface was located ~8 km east of the mesocyclone.
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所分析的地面低压中心位于中（尺度）气旋之东约8公里处。 |
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The analyzed results gave theoretical basis for studying the ground collapse and improving the ecological environment.
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分析结果为地表沉陷规律研究和后期地表生态环境治理提供了理论依据。 |
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The anaphoric relation is one of the two kinds of endophoric relations.
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摘要回指是从上文获取照应语的所指，属于内指照应。 |
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The anarchical state of the country district after the coup.
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政变后国家行政地区的无政府状态。 |
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The anarchist is apt to lose his temper.
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那个无政府主义者很容易发脾气。 |
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The anatomical model、partial task trainer 、 computer interactive system 、virtual reality and physical driven simulator, all of which are of some importance and indispensable for medical study.
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基础解剖示教模型、局部功能性模型、计算机互动模型、虚拟培训系统、生理驱动模拟系统,这五部分各自具有不同功能,在医学生培养中缺一不可。 |
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The anatomical structure of a specific area or part of the body.
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局部解剖身体某特定区域或部分的解剖后的结构 |
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The anatomical structure of the aerial adventitious roots of Taxus chinensis var. mairei. was investigated in this paper.
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摘要对自然状态下南方红豆杉茎干向下萌生的气生不定根进行解剖学观察。 |
