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相关概念视频

Short-distance Transport of Resources02:12

Short-distance Transport of Resources

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Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
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Carrier-Mediated Transport01:06

Carrier-Mediated Transport

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Carrier-mediated transport is a pivotal process in drug absorption, particularly for lipid-insoluble drugs, and encompasses facilitated diffusion and active transport. Facilitated diffusion allows drugs to move along their concentration gradient without energy expenditure, while active transport utilizes ATP to drive drug movement against this gradient.
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
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Carrier Generation and Recombination01:22

Carrier Generation and Recombination

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Carrier generation is the process by which electron-hole pairs (EHPs) are created within the semiconductor. In direct-bandgap semiconductors, such as gallium arsenide (GaAs), this occurs efficiently when energy absorption prompts valence electrons to leap into the conduction band, leaving behind holes.
This process is given by the generation rate G and is efficient due to the conservation of momentum between the valence band maximum and conduction band minimum.
Indirect generation involves an...
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Preplaced Aggregate Concrete01:29

Preplaced Aggregate Concrete

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Preplaced aggregate concrete is ideal for construction environments that are not easily accessible. The process begins by properly wetting the gap-graded coarse aggregates to remove the dirt, then placing it in the form and compacting it. Voids are filled with a mortar mix pumped under pressure through slotted pipes. This mortar typically consists of Portland cement, pozzolan, fine aggregates, water, and a fluidizing aid. The pozzolan helps reduce bleeding and segregation while improving the...
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COP Coated Vesicles00:59

COP Coated Vesicles

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Membrane-enclosed structures called vesicles transport proteins and lipids across the cell. The vesicles derive their cargo from the plasma membrane, Golgi, ER, or endosome. Coated vesicles are spherical, protein-coated carriers with a 50–100 nm diameter that mediate bidirectional transport between the ER and the Golgi. The distribution of proteins between the ER and Golgi complex is dynamic and is maintained by different coated vesicles. Their formation is driven by the assembly of...
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Cohesins02:20

Cohesins

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Cohesin protein complexes are a molecular glue that holds two sister chromatids together. They play an important role both in mitosis and meiosis. In mitosis, all cohesin complexes present on the chromosomes are removed before the start of the anaphase stage.
Cohesin complexes in Meiotic Division
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相关实验视频

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Integration of 5G Experimentation Infrastructures into a Multi-Site NFV Ecosystem
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通过B5G小型蜂网络进行合作分布式上链缓存.

Waheed Ur Rehman1, Mubarak Mohammed Al-Ezzi Sufyan1,2, Tabinda Salam3

  • 1Department of Computer Science, University of Peshawar, Peshawar, Pakistan.

PloS one
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概括

本研究介绍了在分布式的第五代 (B5G) 超越内容中心网络 (CCN) 中对上链数据缓存的两个方案. 这些方法通过减少重复内容和优化缓存空间来提高效率,提高整体网络性能.

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科学领域:

  • 计算机科学 计算机科学
  • 电气工程 电气工程
  • 电信 电信服务 电信服务 电信服务

背景情况:

  • 内容中心网络 (CCN) 增加了数据流量,导致超越第五代 (B5G) 网络的拥堵.
  • 在分布式B5G场景中,Uplink数据缓存面临着重复内容和缓存数据不知情等挑战.
  • 优化流行的内容的分布式缓存对于高效的空间利用至关重要.

研究的目的:

  • 建议在分布式B5G CCNs中进行上链传输的新方案.
  • 为应对重复内容匹配和在分布式缓存中高效空间利用的挑战.
  • 为了提高能源和光谱效率,同时改善内容交付.

主要方法:

  • 在分布式B5G CCNs中开发了两个上行传输方案.
  • 方案1:专注于内容匹配以消除重复的缓存内容.
  • 方案2:根据可用的空间和内容大小重新分配独特的缓存内容.

主要成果:

  • 拟议的方案显著优于现有方法.
  • 缓存命中率提高了29.17%,缓存命中概率提高了74.89%,缓存效率提高了24.17%,多样性提高了80%.
  • 接入网络吞吐量,频谱效率 (SE) 和能源效率 (EE) 分别提高了17.78%,18%和78%. 小基站 (SBS) 的侧运和后运连接也显示了EE和SE的改善.

结论:

  • 拟议的上链缓存方案有效减少重复内容,并优化分布式B5G CCN中的空间.
  • 在缓存性能,网络效率 (SE和EE) 和内容交付方面取得了显著的改进.
  • 这些进步对于应对未来无线网络的数据传输挑战至关重要.