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相关概念视频

Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

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A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
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Potential Due to a Magnetized Object01:24

Potential Due to a Magnetized Object

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Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
The vector...
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Moment of Inertia of Compound Objects01:07

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The moment of inertia is a quantitative measure of the rotational inertia of an object. It is defined as the sum of the products obtained by multiplying the mass of each particle of matter in a given body by the square of its distance from the axis. The total moment of inertia for compound objects can be found by determining and adding the moment of inertia of individual components together.
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Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
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Consider a system comprising several point masses. The coordinates of the center of mass for this system can be expressed as the summation of the product of each mass and its position vector divided by the total mass:
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Chemical reactions often occur in a stepwise fashion involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs. Each of the steps in a reaction mechanism is called an elementary reaction. These...
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相关实验视频

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Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
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一个记住的多目标Sinh-Cosh优化器,用于解决多目标工程设计问题.

Doaa El-Nagar1, Ibrahim Zeidan2, Mohamed Issa3,4

  • 1Computer and Systems Department, Faculty of Engineering, Zagazig University, Zagazig, Egypt. Doaaelnagar@zu.edu.eg.

Scientific reports
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PubMed
概括
此摘要是机器生成的。

多目标Sinh-Cosh优化算法 (MOSCHO) 通过使用记住的局部最佳值来增强多目标优化. 这种新的方法改善了复杂的工程问题的融合和多样性.

关键词:
这是一种元启发式 (metaheuristic) 启发式.多目标优化多目标优化西恩-科什算法和记忆技术

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科学领域:

  • 计算智能是一种计算智能.
  • 优化算法 优化算法
  • 工程应用 工程应用

背景情况:

  • 多目标优化问题在各种科学和工程领域提出了重大挑战.
  • 现有的优化算法经常在复杂的现实应用中与平衡融合和多样性作斗争.

研究的目的:

  • 介绍和评估多目标Sinh-Cosh优化算法 (MOSCHO),这是Sinh-Cosh优化器的扩展.
  • 通过将记住的本地最佳与全球解决方案集成,提高寻找非主导解决方案的能力.
  • 评估MOSCHO在基准函数和现实世界工程设计问题上的有效性.

主要方法:

  • 拟议的MOSCHO算法在Sinh-Cosh优化框架内结合了记住的局部最佳策略.
  • 算法的搜索空间由整合本地和全球最佳解决方案来指导更新过程.
  • 绩效评估涉及七个标准指标,将MOSCHO与已建立的多目标优化算法进行比较.

主要成果:

  • 莫斯科在测试的功能和应用中展示了显著的融合和多样性能力.
  • 该算法在ZDT3,ZDT4和MMF14基准函数上取得了卓越的性能.
  • 莫斯科在SRN受约束函数和现实世界工程问题上表现强 (>75%的指标).

结论:

  • 多目标Sinh-Cosh优化算法 (MOSCHO) 是解决复杂多目标优化任务的强大而有效的方法.
  • 整合已记住的局部最佳值对MOSCHO寻找高质量的非主导解决方案的能力作出了重大贡献.
  • 莫斯科由于其强大的性能和适应性,对现实世界的工程设计应用特别有希望.