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Rectangular and Triangular Pulse Function01:19

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The unit rectangular pulse function is mathematically represented by a rectangular function centered at the origin with a height of one unit. This function is defined by two parameters: T, which specifies the center location of the pulse along the time axis, and τ, which determines the pulse duration.
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The unit step sequence is defined as 1 for zero and positive values of the integer n. This sequence can be graphically displayed using a set of eight sample points, showing a step function starting from n=0 and remaining constant thereafter.
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Consider an external electric field propagating through a homogeneous medium. When the electric field crosses the surface boundary of the medium, it undergoes a discontinuity. The electric field can be resolved into normal and tangential components. The amount by which the field changes at any boundary is given by the difference between the field components above and below the surface boundary.
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In analyzing a thin-walled hollow shaft subjected to torsional loading, a segment with width dx is isolated for examination. Despite its equilibrium state, this segment faces torsional shearing forces at its ends. These forces are quantitatively described by the product of the longitudinal shearing stress on the segment's minor surface and the area of this surface, leading to the concept of shear flow. This shear flow is consistent throughout the structure, indicating a uniform distribution...
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Circular shafts undergoing torsional stress maintain their cross-sectional integrity due to their axisymmetric nature. This symmetry ensures an even distribution of stress, allowing the shaft to withstand torsion without distorting. In contrast, square bars, lacking this axial symmetry, experience significant distortion across their cross-sections when subjected to torsion, with the exception of along their diagonals and at lines connecting midpoints. A detailed examination of a cubic element...
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Fourier series is a foundational mathematical technique that decomposes periodic functions into an infinite series of sinusoidal harmonics. This method enables the representation of complex periodic signals as sums of simple sine and cosine functions, facilitating their analysis and interpretation in various fields, including signal processing, acoustics, and electrical engineering.
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在道挖掘概率中的牙结构,用于周期性扰动的圆形矩形电位.

Kin'ya Takahashi1, Kensuke S Ikeda2

  • 1Department of Physics and Information Technology, Kyushu Institute of Technology, Kawazu 680-4, Iizuka 820-8502, Japan; Research Institute for Information Technology, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan; and AcsiomA Ltd, 3-8-33 Momochihama Sawara-ku, Fukuoka 814-0001, Japan.

Physical review. E
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概括

道挖掘中的牙结构可能来自于多量子吸收. 变化的普朗克.

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科学领域:

  • 量子力学就是量子力学.
  • 凝聚物质物理学 凝聚物质物理学

背景情况:

  • 量子道是一个基本的现象.
  • 了解复杂潜力的道化是至关重要的.

研究的目的:

  • 在道挖掘概率中调查牙结构.
  • 分析普朗克常数和扰动频率的作用.

主要方法:

  • 对周期性扰动的圆形矩形电位进行理论分析.
  • 检查不同普朗克常数和扰动频率的道概率.

主要成果:

  • 在道挖掘概率中观察到牙结构.
  • 确定了多量子吸收作为潜在的机制.
  • 发现来自吸收最小量子的和通道的占主导地位.
  • 共振固有状态影响牙峰值.

结论:

  • 多量子吸收决定了道的行为.
  • 牙结构是可预测的,随着参数的变化.
  • 一个有效的配方标志着这些牙形状.