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相关概念视频

Design Example: Traverse Angle Computations01:25

Design Example: Traverse Angle Computations

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Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
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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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相关实验视频

Updated: Jan 11, 2026

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表面光源的计算声学设计.

Sizhuo Zhou, Yuou Sun, Bailin Deng

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    此摘要是机器生成的。

    这项研究引入了一种设计自由形镜片的新方法,可以准确地控制来自复杂表面源的光. 这种方法优化了一组点源以模拟真实照明,改善镜头性能以精确的光成型.

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    A Protocol for Bioinspired Design: A Ground Sampler Based on Sea Urchin Jaws
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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 计算机图形 计算机图形
    • 光学工程是指光学工程.

    背景情况:

    • 设计用于光控制的自由形表面是困难的,因为目前的方法中对源假设进行了简化.
    • 现有的性透镜设计往往无法与复杂的现实世界照明模式相匹配.

    研究的目的:

    • 开发一种新的方法来设计自由形镜头,可以准确地控制来自任意表面光源的光.
    • 通过更好地代表现实世界的照明来提高光塑造的真实性.

    主要方法:

    • 使用优化的一组点光源来表示表面光源.
    • 使用可分化的染框架,以将点源参数与实际照明相匹配.
    • 采用基于物理的染方法,模拟使用流量的光传输.
    • 在优化过程中应用收缩映射以实现高效的参数空间探索.
    • 设计基于流量一致性和正常整合性的自由形镜片形状.

    主要成果:

    • 拟议的方法准确地代表了真实的表面光源,优于点源近似.
    • 设计的性透镜产生了与目标照明模式密切匹配的光分布.
    • 模拟和物理实验验证了新方法的有效性.

    结论:

    • 开发的技术为复杂的照明场景提供了更准确和多功能的方式来设计自由形式的镜头.
    • 这种方法提升了基于现实世界的照明精确控制光的能力,在各种光学系统中有应用.