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相关概念视频

Microcracking in Concrete01:20

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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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During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
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A clamper circuit, also known as a DC restorer, represents a specialized variant of the rectifier circuit, notable for its method of taking the output across the diode rather than the capacitor. This configuration lends to several distinctive applications, particularly in handling square wave inputs.
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When one or more data points appear far from the rest of the data, there is a need to determine whether they are outliers and whether they should be eliminated from the data set to ensure an accurate representation of the measured value. In many cases, outliers arise from gross errors (or human errors) and do not accurately reflect the underlying phenomenon. In some cases, however, these apparent outliers reflect true phenomenological differences. In these cases, we can use statistical methods...
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相关实验视频

Updated: Sep 16, 2025

Behavioral Tracking and Neuromast Imaging of Mexican Cavefish
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一个针对Windows应用程序的定向灰框模糊器.

Xin Ren1, Peng-Fei Wang2, Xu Zhou1

  • 1College of Computer Science and Technology, National University of Defense Technology, Changsha, People's Republic of China.

Scientific reports
|July 7, 2025
PubMed
概括

WinDGF是Windows的一个新的定向灰框模糊化 (DGF) 工具,改进了漏洞发现. 与WinAFL和Winnie等现有工具相比,它增强了测试案例探索和崩检测.

关键词:
导向的灰色盒子迷雾器关键区块的覆盖范围路径距离 路径距离这是Windows应用程序.

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科学领域:

  • 计算机安全 计算机安全
  • 软件工程 软件工程 软件工程
  • 发现漏洞 发现漏洞

背景情况:

  • 定向灰框模糊 (DGF) 对于发现漏洞是有效的,但主要是在Linux上.
  • 由于闭源性质和GUI软件,Windows平台的模糊面临着挑战.
  • 现有的工具缺乏针对Windows特定复杂性的专业方法.

研究的目的:

  • 介绍WinDGF,这是一个用于Windows应用程序的新型定向灰盒混器.
  • 在Windows fuzzing中解决关键挑战:目标函数本地化,GUI绕过和健身指标.
  • 为优化测试策略提供灵活的模糊模式.

主要方法:

  • 开发了WinDGF,有两个不同的模式:WinDGF_path和WinDGF_keyblock.
  • WinDGF_path指南通过路径距离缩短以进行深入的程序探索.
  • WinDGF_keyblock最大化了关键块覆盖范围,用于集中测试关键组件.

主要成果:

  • 在Windows上,WinDGF显著增强了测试案例探索和漏洞检测.
  • 与WinAFL相比,WinDGF_path和WinDGF_keyblock的独特崩发现率分别增加了31.72%和79.48%.
  • 胜利DGF显示了对Winnie的进一步改进,并成功地重现了已知的11个崩点.

结论:

  • WinDGF 提供了一个强大的和有效的解决方案,用于在 Windows 上指导灰盒 fuzzing.
  • 该工具的双模式允许适应性和高效的漏洞发现.
  • 在识别和复制Windows应用程序中的漏洞方面,WinDGF表现出卓越的性能.