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相关概念视频

Light Acquisition02:16

Light Acquisition

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In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
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Calculation of Electric Flux01:25

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Consider the electric field of an oppositely charged, parallel-plate system and an imaginary box between those plates. Let the bottom face of the box be ABCD, and the top face be FGHK. The electric field between the plates is uniform and points from the positive plate toward the negative plate. The calculation of this field's flux through the box's various faces shows that the net flux through the box is zero. Why does the flux cancel out here?
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Maxwell-Boltzmann Distribution: Problem Solving

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Individual molecules in a gas move in random directions, but a gas containing numerous molecules has a predictable distribution of molecular speeds, which is known as the Maxwell-Boltzmann distribution, f(v).
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Ampere-Maxwell's Law: Problem-Solving01:17

Ampere-Maxwell's Law: Problem-Solving

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A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
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Radiation Pressure: Problem Solving01:09

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The radiation pressure applied by an electromagnetic wave on a perfectly absorbing surface equals the energy density of the wave. The wave's momentum also gets transferred to the surface when an electromagnetic wave is entirely absorbed by it. The rate at which momentum is transmitted to an absorbing surface perpendicular to the propagation direction equals the force on the surface.
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Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...
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通过基于物理的深度学习模型对农业电力进行快速地面辐射计算.

L Kurumundayil1, D Burkhardt2, L Gfüllner2

  • 1Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany. leslie.lydia.kurumundayil@ise.fraunhofer.de.

Communications engineering
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PubMed
概括

一个新的深度学习模型大大加快了农业电力系统的太阳能计算速度. 这种先进的替代模型可以实现更快,更有效的光伏 (PV) 追踪和系统优化.

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科学领域:

  • 可再生能源系统可再生能源系统
  • 人工智能在能源中的作用
  • 光伏技术 光伏技术

背景情况:

  • 农电系统集成太阳能电池板和农业,需要精确的阳光分布分析.
  • 精确的辐射量化对于优化双面太阳能模块性能和产量至关重要.
  • 对于复杂的农电场景的传统射线追踪模拟是计算密集的.

研究的目的:

  • 开发一个计算效率高的替代模型,用于计算农业电力系统的地面辐射.
  • 为了使光伏 (PV) 追踪器算法能够实时进行辐射计算.
  • 优化农业电压系统的设计和运行,以获得最大的作物和电力产量.

主要方法:

  • 一个基于深度学习的代孕模型被训练,使用来自光线追踪模拟的物理信息数据.
  • 该模型使用直接正常辐射,分散水平辐射,太阳位置和系统几何作为输入.
  • 用3D场景编码的生成回归方法用于辐射映射.

主要成果:

  • 替代模型在3毫秒内计算地面辐射图,比标准光线追踪速度提高了四个数量级.
  • 实现了太阳光分布在地面和模块层面的快速,准确的计算.
  • 在边缘计算应用中证明了飞行中的射线追踪的可行性.

结论:

  • 深度学习替代模型为农业电力系统中的辐射计算提供了显著的加速.
  • 这种方法促进了光伏系统的高效管理和优化,特别是在边缘计算应用中.
  • 能够更快地开发和部署先进的光伏追踪算法.