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相关概念视频

Microcracking in Concrete01:20

Microcracking in Concrete

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Microcracking in concrete refers to the tiny cracks that can form within the material even before any external load is applied. These microcracks typically occur at the interface between the coarse aggregate and the hydrated cement paste, often as a result of differential volume changes prompted by variations in stress-strain behavior, as well as thermal and moisture movement. Initially, these microcracks remain stable and do not grow substantially until the concrete is stressed to about 30...
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Cryo-electron Microscopy01:28

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Conventional electron microscopy (EM) involves dehydration, fixation, and staining of biological samples, which distorts the native state of biological molecules and results in several artifacts. Also, the high-energy electron beam damages the sample and makes it difficult to obtain high-resolution images. These issues can be addressed using cryo-EM, which uses frozen samples and gentler electron beams. The technique was developed by Jacques Dubochet, Joachim Frank, and Richard Henderson, for...
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Frost Resistant Concrete01:29

Frost Resistant Concrete

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Concrete's susceptibility to frost damage during freeze-thaw cycles demands strategic measures to enhance its frost resistance. Employing techniques like air entrainment, adjusting the water-cement ratio, proper curing, and selecting appropriate aggregates are essential.
Introducing microscopic air bubbles into the concrete mix through air entrainment creates small voids that accommodate ice expansion, thereby reducing internal pressures and preventing cracking. The optimal amount of...
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Masking and Demasking Agents01:19

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EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
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Multimachine Stability01:25

Multimachine Stability

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Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
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Encoding01:19

Encoding

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Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
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相关实验视频

Updated: May 20, 2025

A Robust Single-Particle Cryo-Electron Microscopy cryo-EM Processing Workflow with cryoSPARC, RELION, and Scipion
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增强的轻量级和妥协弹性图像加密,用于资源有限的环境.

Abid Mehmood1, Abdul Nasir Khan2, Iynkaran Natgunanathan3

  • 1Abu Dhabi University, Abu Dhabi, UAE.

PloS one
|March 26, 2025
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概括

本研究介绍了一种新的轻量级加密系统,用于在物联网 (IoT) 中保护图像数据. 拟议的解决方案提供了强大的安全性,而不需要大量的计算资源,解决了当前物联网安全性的关键差距.

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科学领域:

  • 计算机科学 计算机科学
  • 网络安全 网络安全
  • 信息技术 信息技术 信息技术

背景情况:

  • 互联网面临着不断升级的多媒体流量,需要有效的内容管理和安全.
  • 传统的安全方法对于资源有限的物联网 (IoT) 环境是不够的,特别是对于敏感的图像数据传输.
  • 现有的研究努力平衡轻量设计与物联网应用程序的强有力的安全性.

研究的目的:

  • 提出一种新,轻量级和强大的加密系统,用于在物联网环境中保护数字图像数据.
  • 解决当前安全解决方案的局限性,这些解决方案未能同时为资源有限的设备提供安全性和效率.
  • 开发一种图像加密技术,尽量减少处理时间,同时保持高安全标准.

主要方法:

  • 为图像加密量身定制的新型轻量级加密系统的开发.
  • 使用全面的安全和性能指标对拟议系统进行评估.
  • 与最先进的轻量级图像加密技术进行比较分析.

主要成果:

  • 拟议的图像加密技术证明了安全和性能要求的有效和集体实现.
  • 评估包括密码处理时间,直方图分析,,相关性,平均平方误差和灵敏度分析.
  • 该系统实现了强大的安全性,而不会影响物联网必不可少的轻量级设计.

结论:

  • 开发的加密系统有效地弥合了物联网图像数据保护中的安全需求和资源限制之间的差距.
  • 与现有的轻量级图像加密方法相比,拟议的技术提供了更好的安全性和效率平衡.
  • 这项研究提供了一个可行的解决方案,用于在物联网应用程序的勃发展的景观中保护敏感的图像数据.