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相关概念视频

Self-Locking Screw01:16

Self-Locking Screw

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A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. One of the key features that can make a screw jack more effective and reliable is its self-locking capability.
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.
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The Contractile Ring02:15

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Contractile rings are composed of microfilaments and are responsible for separating the daughter cells during cytokinesis. Contractile ring assembly proceeds along with other cell cycle events; however, very few mechanistic details are known about the timing and coordination of the contractile rings with the cell cycle.
A small GTPase, RhoA, controls the function and assembly of the contractile ring. RhoA belongs to the Ras superfamily of proteins. The activation of formins by RhoA promotes...
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相关实验视频

Updated: Jul 23, 2025

Data Communication Based on MQTT in a Polymer Extrusion Process
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一个基于智能合约的防改定时安全数据传输协议.

Ke Yuan1,2, Haowen Cao1, Suya Zhang1

  • 1School of Computer and Information Engineering, Henan University, Kaifeng, 475004, China.

Scientific reports
|July 17, 2023
PubMed
概括

本研究介绍了使用智能合约的安全数据传输协议,以克服定时释放加密 (TRE) 中的单点故障. 这种新方法提高了安全性,并且以最低的成本抵御各种攻击.

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科学领域:

  • 密码学和分布式系统
  • 区块链技术应用 区块链技术应用

背景情况:

  • 定时释放加密 (TRE) 对于时间敏感的数据解密至关重要.
  • 现有的一次性服务器TRE模型存在单点故障.

研究的目的:

  • 通过使用智能合约,提出一种防改的定时安全数据传输协议.
  • 通过提高安全性和可靠性来解决现有的TRE模型的局限性.

主要方法:

  • 将加密文本分解成碎片,以减少中间人存款要求.
  • 使用区块链进行哈希值提交以确保数据真实性.
  • 实施基于智能合约的协议,以实现安全的数据传输.

主要成果:

  • 该协议表现出对中断,前期释放和替换攻击的抵抗力.
  • 安全冗余是通过密码文本分解模式实现的.
  • 在以太坊的Rinkeby测试网上进行的货币成本分析显示成本低且可以忽略不计.

结论:

  • 拟议的基于智能合约的协议为定时释放加密提供了强大而安全的解决方案.
  • 该系统提供了增强的安全性,并有效地克服单点故障问题.
  • 该协议对于现实世界的应用很实用,因为它的运营成本很低.