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相关概念视频

LC Circuits01:21

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An LC circuit consists of an inductor and a capacitor, either in series or parallel. Consider a charged capacitor connected with an inductor in series. Before the switch is closed, all the energy of the circuit is stored in the electric field of the capacitor. When the switch is closed, the capacitor begins to discharge, producing a current in the circuit. The current, in turn, creates a magnetic field in the inductor. Because of the induced emf in the inductor, the current cannot change...
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When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
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Long-term Potentiation01:35

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Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
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MOSFET: Enhancement Mode01:22

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Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
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Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

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In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
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Clamper Circuit01:14

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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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双层LDPC代码与MLC NAND闪存的扰乱解码相结合

Lingjun Kong1, Haiyang Liu2, Wentao Hou3

  • 1Faculty of Network and Telecommunication Engineering, Jinling Institute of Technology, Nanjing 211169, China.

Entropy (Basel, Switzerland)
|January 22, 2024
PubMed
概括
此摘要是机器生成的。

这项研究介绍了一种双层低密度平价检查 (LDPC) 编码方案,用于多层细胞 (MLC) NAND闪存. 这种新的方法增强了错误校正,将内存寿命延长到10,000个程序和删除周期.

关键词:
这是一个NAND闪存.双层低密度平价检查 (LDPC) 代码基因算法 (GA) 是一种基因算法.多层次细胞 (MLC)干扰噪声是一种干扰噪声.

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科学领域:

  • * 数字存储技术的使用.
  • * 错误纠正编码的编码
  • * 半导体存储器设备的使用

背景情况:

  • *多级别单元 (MLC) NAND闪存面临数据完整性和有限寿命的挑战.
  • * 传统的编码方案难以充分利用MLC NAND闪存的不对称通道特性.
  • * 提高错误纠正对于提高闪存的可靠性和耐用性至关重要.

研究的目的:

  • *为MLC NAND闪存提供一种新的编码方案.
  • * 为了利用MLC闪光通道的不对称性质,以改善错误纠正.
  • *为了延长MLC NAND闪存的使用寿命.

主要方法:

  • * 开发一个双层低密度平价检查 (LDPC) 代码结构.
  • *利用MLC NAND闪存通道不对称性,将平价位存储在页面的底部.
  • *将基于遗传算法 (GA) 的扰动过程集成到解码算法中,以纠正无法纠正的读取序列.

主要成果:

  • * 拟议的双层LDPC编码方案有效利用通道不对称性.
  • *基于GA的扰动解码显示出效率,特别是在低程序和删除 (P/E) 循环区域.
  • *模拟结果表明,MLC NAND闪存的潜在寿命可以延长到10,000个P/E周期.
  • * 与单个LDPC方案相比,该方案在性能和复杂性之间取得了更好的平衡.

结论:

  • *双层LDPC编码方案为提高MLC NAND闪存的可靠性提供了一个实际的解决方案.
  • * 集成基于GA的扰动解码显著提高了错误纠正能力.
  • * 拟议的方案非常适合在MLC NAND闪存中的实际应用,平衡性能和复杂性.