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相关概念视频

Protein Organization01:13

Protein Organization

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Organization of Genes

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Primary Production01:06

Primary Production

The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
Competition02:34

Competition

When organisms require the same limited resources within an environment, they may have to compete for them. Competition is a net-negative interaction. Even if two competing individuals or populations do not interact directly, the overall fitness of both competitors is lowered as a result of not having full access to the limited resource.Intraspecific competition, which occurs between individuals of the same species, serves as a natural mechanism for regulating population size. Too much...
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Protein Organization

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Work of a Couple Moment

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相关实验视频

Updated: Jun 26, 2026

Virtual Hand with Ambiguous Movement between the Self and Other Origin: Sense of Ownership and 'Other-Produced' Agency
08:01

Virtual Hand with Ambiguous Movement between the Self and Other Origin: Sense of Ownership and 'Other-Produced' Agency

Published on: October 28, 2020

自主组织的原创作品.

L Mahadevan1, S Rica

  • 1Division of Engineering and Applied Sciences and Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA. lm@deas.harvard.edu

Science (New York, N.Y.)
|March 19, 2005
PubMed
概括
此摘要是机器生成的。

原木图案,就像自然界的图案一样,可以通过自我组织来形成. 薄膜的双轴压缩自发地产生Miura-ori模式,由一个简单的理论解释.

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Last Updated: Jun 26, 2026

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科学领域:

  • 物理 物理学 物理
  • 材料科学 材料科学 材料科学
  • 生物学 生物学 生物学

背景情况:

  • 奥里加米通常需要顺序折叠和外部干预.
  • 像昆虫的翅膀和叶子这样的自然结构表现出复杂的折叠模式.

研究的目的:

  • 调查由自我组织产生的原木图案的可能性.
  • 为了确定自然发生的Miura-ori折叠模式背后的物理机制.

主要方法:

  • 考察了原创的自我组织原则.
  • 在双轴压缩下在薄膜中分析了Miura-ori模式的自发生成.
  • 开发了对模式形成的理论解释.

主要成果:

  • 证实,原木可以通过自我组织产生.
  • 确定双轴压缩 (由于差异增长,收缩,干燥或热膨胀) 作为弹性支薄膜中自发Miura-ori图案形成的触发因素.
  • 提供了一个简单的理论框架来解释这一现象.

结论:

  • 自组织是一种可行的机制,可以生成自然界中发现的复杂的原木图案.
  • 慕拉奥里图案可以自发地从作用于薄膜的物理过程中出现.
  • 这一发现为生物结构的发展和新型材料设计提供了洞察力.