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相关概念视频

Non-destructive Tests for Concrete Strength01:12

Non-destructive Tests for Concrete Strength

121
The rebound hammer test, also known as the Schmidt hammer test, is a non-destructive technique for evaluating the hardness of concrete and, indirectly, the strength of concrete. It operates on the principle that the rebound of a spring-driven mass from a concrete surface correlates to the surface's hardness. The device comprises a mass within a tubular housing, a spring mechanism, and a plunger that strikes the concrete. Upon release, the energy imparted to the mass by the spring causes it...
121

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相关实验视频

Updated: Jul 5, 2025

The Deese-Roediger-McDermott DRM Task: A Simple Cognitive Paradigm to Investigate False Memories in the Laboratory
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在动态随机访问内存和防御方法中进行Rowhammer攻击.

Dayeon Kim1, Hyungdong Park1, Inguk Yeo1

  • 1Department of Computer Engineering, Hongik University, Seoul 04066, Republic of Korea.

Sensors (Basel, Switzerland)
|January 23, 2024
PubMed
概括
此摘要是机器生成的。

罗哈默 (Rowhammer) 是一个动态随机存储器 (DRAM) 漏洞,允许攻击者通过目标行访问诱导位翻转. 了解DRAM组织对于减轻这些安全威胁至关重要.

关键词:
动态的随机访问存储器.排行 子 子安全的安全的安全的安全的安全.漏洞的脆弱性 漏洞的脆弱性

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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
  • 硬件安全 硬件安全

背景情况:

  • 动态随机访问存储器 (DRAM) 在现代计算系统中很普遍.
  • 在DRAM中的硬件漏洞Rowhammer于2014年首次被发现.
  • 这一漏洞对系统安全构成重大风险,包括数据完整性和可用性.

研究的目的:

  • 为DRAM中的Rowhammer漏洞提供全面的概述.
  • 讨论Rowhammer攻击的机制和阶段.
  • 检查现有的防御策略,并强调DRAM组织的重要性.

主要方法:

  • 对Rowhammer漏洞研究的文献评论.
  • 对Rowhammer攻击技术的分析.
  • 探索当前的防御机制和缓解策略.

主要成果:

  • 轮攻击利用DRAM的物理结构导致位翻转.
  • 成功的攻击可能会损害系统凭证,完整性和可用性.
  • 了解DRAM架构是开发有效防御的关键.

结论:

  • 对于使用DRAM的系统来说,Rowhammer仍然是一个关键的安全问题.
  • 对DRAM组织和安全的持续研究是必不可少的.
  • 实施强大的防御策略是必要的,以防止Rowhammer攻击.