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Cells of the Adaptive Immune Response01:23

Cells of the Adaptive Immune Response

The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...

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相关实验视频

Updated: Jun 25, 2026

Lensless On-chip Imaging of Cells Provides a New Tool for High-throughput Cell-Biology and Medical Diagnostics
08:19

Lensless On-chip Imaging of Cells Provides a New Tool for High-throughput Cell-Biology and Medical Diagnostics

Published on: December 15, 2009

一个基于半导体的光子记忆细胞

Zimmermann1, Wixforth, Kotthaus

  • 1Sektion Physik and Center for Nanoscience, Ludwig-Maximilians-Universität, Geschwister-Scholl-Platz 1, D-80539 München, Germany. Walter-Schottky-Institut, Technische Universität München, Am Coulombwall, D-85748 Garching, Germany.

Science (New York, N.Y.)
|February 26, 1999
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种存储光子信号的半导体记忆细胞. 这一突破将光子存储时间延长了其自然寿命的1万倍以上,从而实现了新的光学计算可能性.

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Using Affordable LED Arrays for Photo-Stimulation of Neurons
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Gradient Echo Quantum Memory in Warm Atomic Vapor
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Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 12, 2013

相关实验视频

Last Updated: Jun 25, 2026

Lensless On-chip Imaging of Cells Provides a New Tool for High-throughput Cell-Biology and Medical Diagnostics
08:19

Lensless On-chip Imaging of Cells Provides a New Tool for High-throughput Cell-Biology and Medical Diagnostics

Published on: December 15, 2009

Using Affordable LED Arrays for Photo-Stimulation of Neurons
07:40

Using Affordable LED Arrays for Photo-Stimulation of Neurons

Published on: November 15, 2011

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 12, 2013

科学领域:

  • 固态物理 固态物理
  • 量子电子学 量子电子学
  • 光子学 是一个光子学.

背景情况:

  • 对光子信号的有效存储对于光学计算和量子信息处理至关重要.
  • 现有的方法通常存储时间短,限制了它们的实际应用.

研究的目的:

  • 为了证明光子信号在基于半导体的新型记忆细胞中的高效和长期存储.
  • 通过可调节的静电超网来研究光子存储和检索的机制.

主要方法:

  • 采用半导体记忆电池,具有量子井,用于存储从事件光子生成的电子孔对.
  • 采用一个场效应可调节的静电超网格来调节量子井潜力.
  • 研究了在大型超格子潜在幅度上的储存时间,并通过平整超格子振幅触发释放.

主要成果:

  • 实现了光子信号的高效存储.
  • 将电子孔对的存储时间延长了至少五个数量级,超出了它们的自然寿命.
  • 在短暂,强烈的不连贯光的闪光中,证明了存储的光子的受控释放.

结论:

  • 开发的半导体存储电池为长期光子信号存储提供了一个有前途的平台.
  • 场效应可调节的静电超网是实现延长存储时间和控制释放的关键.
  • 这项技术对推进光学数据存储和处理具有重大意义.