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相关概念视频

Rolling Resistance: Problem Solving01:17

Rolling Resistance: Problem Solving

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Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
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Elastic Collisions: Case Study01:15

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Elastic collision of a system demands conservation of both momentum and kinetic energy. To solve problems involving one-dimensional elastic collisions between two objects, the equations for conservation of momentum and conservation of internal kinetic energy can be used. For the two objects, the sum of momentum before the collision equals the total momentum after the collision. An elastic collision conserves internal kinetic energy, and so the sum of kinetic energies before the collision equals...
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Distributed Loads: Problem Solving01:21

Distributed Loads: Problem Solving

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Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
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Elastic Collisions: Introduction01:00

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An elastic collision is one that conserves both internal kinetic energy and momentum. Internal kinetic energy is the sum of the kinetic energies of the objects in a system. Truly elastic collisions can only be achieved with subatomic particles, such as electrons striking nuclei. Macroscopic collisions can be very nearly, but not quite, elastic, as some kinetic energy is always converted into other forms of energy such as heat transfer due to friction and sound. An example of a nearly...
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Collisions in Multiple Dimensions: Problem Solving01:06

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In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
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The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
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相关实验视频

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A Networked Desktop Virtual Reality Setup for Decision Science and Navigation Experiments with Multiple Participants
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NeoStarling:一种高效且可扩展的区块链协作障碍映射解决方案,用于车辆环境.

Rubén Juárez1, Borja Bordel1

  • 1Department of Informatics Systems, Universidad Politécnica de Madrid, 28031 Madrid, Spain.

Sensors (Basel, Switzerland)
|September 9, 2023
PubMed
概括

这项研究介绍了NeoStarling,这是一个区块链系统,用于安全地绘制车辆网络中的障碍物. 它提高了智能运输系统的数据可靠性和可扩展性.

关键词:
在HMAC中,HMAC是最重要的.智能运输系统 智能运输系统星际文件系统 星际文件系统瓦内特 (Vanet) 是一个名字.认证的真实性 认证的真实性区块链区块链区块链区块链区块链数据可靠性的数据可靠性.安全的安全的安全的安全的安全.

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相关实验视频

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科学领域:

  • 智能运输系统 智能运输系统
  • 计算机网络 计算机网络.
  • 网络安全 网络安全

背景情况:

  • 车辆网络 (VANET) 对智能交通系统至关重要,但在数据安全,隐私和可扩展性方面面临挑战.
  • 现有的车辆对车辆解决方案难以确保数据真实性和检测恶意车辆.
  • 在VANET中集成区块链旨在解决这些问题,但像Starling这样的当前系统是计算密集的.

研究的目的:

  • 提出NeoStarling,一个可扩展和高效的基于区块链的系统,用于在VANET中安全可靠的障碍物映射.
  • 在计算开销和可扩展性方面解决现有区块链解决方案的局限性.
  • 在密集的车辆环境中提高数据安全,隐私和可靠性.

主要方法:

  • 开发了NeoStarling,这是一个利用基于哈希函数的机会性相互认证协议的系统.
  • 实现轻量级加密和优化消息交换协议.
  • 评估系统性能,重点关注认证频率,效率和可扩展性.

主要成果:

  • 在NeoStarling系统中,系统效率提高了35%.
  • 与之前的基于区块链的机制相比,可扩展性提高了50%.
  • 通过一种机会主义的方法,减少了认证过程的频率.

结论:

  • 在VANET中,NeoStarling提供了一种可扩展和高效的解决方案,用于安全地绘制VANET中的障碍物.
  • 该系统有效地提高了数据可靠性,并解决了智能运输中的安全问题.
  • 轻量级加密和优化的协议是提高VANET性能和可扩展性的关键.