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相关概念视频

Evolution of Staircase Structures in Diffusive Convection07:28

Evolution of Staircase Structures in Diffusive Convection

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Diffusive convection (DC) widely occurs in natural processes and engineering applications, characterized by a series of staircases with homogeneous convecting layers and stratified interfaces. An experimental procedure is described to simulate the evolution process of the DC staircase structure, including the generation, development and disappearance, in a rectangular...
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Rapid PCR Thermocycling using Microscale Thermal Convection09:02

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We describe a novel method to perform DNA replication via the polymerase chain reaction (PCR). Thermal convection is harnessed to continuously shuttle reagents between denaturing, annealing, and extension conditions by maintaining opposing surfaces of the reactor at constant temperature. This inherently simple design promises to make rapid PCR more...
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Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite07:00

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A protocol for the space payload design, the space experiment on thermocapillary convection, and analyses of experimental data and images are presented in this...
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Convection-Enhanced Delivery of Antibodies into a Mouse Brain02:58

Convection-Enhanced Delivery of Antibodies into a Mouse Brain

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This video demonstrates a convection-enhanced delivery (CED) technique for antibody delivery into the mouse brain. The skull of an anesthetized mouse is exposed, and a burr hole is created at the target area for antibody delivery. A step catheter containing antibodies is inserted at the target site, and via an infusion pump, a pressure gradient is created to deliver antibodies at a controlled...
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Delivery of Antibodies into the Murine Brain via Convection-enhanced Delivery08:22

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Convection-enhanced delivery (CED) is a method enabling effective delivery of therapeutics into the brain by direct perfusion of large tissue volumes. The procedure requires the use of catheters and an optimized injection procedure. This protocol describes a methodology for CED of an antibody into a mouse...
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Using a Tray Dryer to Investigate Convective and Conductive Heat Transfer07:41

Using a Tray Dryer to Investigate Convective and Conductive Heat Transfer

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Source: Michael G. Benton and Kerry M. Dooley, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA
Dryers are utilized in numerous industrial processes. The function of a dryer is to use heat transfer processes to dry solids. A variety of dryer types exist. Adiabatic dryers use convection and direct contact with gases to dry solids, whereas non-adiabatic dryers use methods other than heated gas contact to dry1, including conduction, radiation, and radio frequency...
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相关实验视频

Updated: Jan 20, 2026

Evolution of Staircase Structures in Diffusive Convection
07:28

Evolution of Staircase Structures in Diffusive Convection

Published on: September 5, 2018

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热带对流在个人深层对流系统中没有减少,而全球变暖带来了热带对流.

Maximilien Bolot1, Rémy Roca2, Thomas Fiolleau2

  • 1LMD/IPSL, CNRS, ENS-PSL, Ecole Polytechnique, Sorbonne Université, Paris, France.

NPJ climate and atmospheric science
|January 19, 2026
PubMed
概括

热带对流与全球变暖并没有减少;相反,单个风暴运输更多的质量. 风暴总数的减少,而不是它们的强度,解释了热带对流的总体减少.

关键词:
气候科学 气候科学数学和计算的数学和计算.

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相关实验视频

Last Updated: Jan 20, 2026

Evolution of Staircase Structures in Diffusive Convection
07:28

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Published on: September 5, 2018

6.9K
Rapid PCR Thermocycling using Microscale Thermal Convection
09:02

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Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite
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科学领域:

  • 大气科学 大气科学
  • 气候科学是气候科学.
  • 气象学 天气学

背景情况:

  • 科学共识表明,随着全球变暖,热带对流减少.
  • 这种减少与减少的对流质量流和更少的高云相关,影响气候敏感性.

研究的目的:

  • 研究单个热带风暴对全球变暖的反应.
  • 重新评估热带对流量预计减少背后的机制.

主要方法:

  • 在辐射-对流平衡中利用公里尺度的模拟.
  • 采用对流追踪算法来分析风暴的行为.

主要成果:

  • 单个风暴显示每次风暴的大众运输量增加,而不是减少.
  • 风暴通过扩大它们的对流核来实现这一目标.
  • 热带对流的总体减少归因于风暴数量减少.

结论:

  • 风暴核心内的平均压力速度仍然非常不变.
  • 这种不变性表明了对流的新兴性质,这需要进一步研究.
  • 这些发现挑战了人们对热带对流对气候变化反应的现有理解.