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相关概念视频

Teeth01:15

Teeth

339
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
339
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving01:29

Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving

44
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
44

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相关实验视频

Updated: Jun 10, 2025

Analysis of Craniomaxillofacial Malformations in Mice Using Three-dimensional Microcomputed Tomography
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Analysis of Craniomaxillofacial Malformations in Mice Using Three-dimensional Microcomputed Tomography

Published on: January 17, 2025

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人类分析-一个基于DEM的数值方法.

Rajat Mishra1, Sagar Kumar Deb1, Swasti Chakrabarty2

  • 1Advanced Materials Processing Research Group, Indian Institute of Technology Gandhinagar, Palaj, Gujarat, India.

International journal for numerical methods in biomedical engineering
|October 10, 2024
PubMed
概括
此摘要是机器生成的。

这项研究使用离散元素建模来模拟人类的,分析粒子形状和特性如何影响食物分解. 计算方法为了解这个复杂的消化过程提供了有效的实验替代方案.

关键词:
断裂模型中的断裂模型.离散元素方法的离散元素方法.碎片分布模型 碎片分布模型消化 消化 消化 消化

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科学领域:

  • 生物力学 生物力学
  • 计算机建模 计算建模
  • 食品科学 食品科学 食品科学

背景情况:

  • 是消化过程的关键初始阶段,涉及食物碎片化和混合.
  • 由于许多参数,对口的实验分析是复杂和低效的.
  • 像离散元素数值建模这样的计算技术提供了高效的解决方案.

研究的目的:

  • 使用数值建模模拟人类的过程.
  • 分析食过程中食物颗粒的碎片化和分布.
  • 为了研究粒子特征对结果的影响.

主要方法:

  • 采用离散元件方法 (DEM) 进行数值模拟.
  • 使用了Tavares和Ab-T10破裂模型与Gaudin Schumann和不完整的Beta碎片分布模型.
  • 整合了数值软化因子和粘附力,以建模弹性-塑料行为和水分含量.

主要成果:

  • 分析了粒子形状 (球形,多面体,面圆柱体),尺寸 (面积比) 和方向 (垂直,水平) 对断裂和碎片分布的影响.
  • 通过多个参数证明了DEM在模拟口方面的有效性.
  • 量化了材料特性 (如弹性-塑性行为和水分含量) 对食物颗粒碎片化的影响.

结论:

  • 离散元件方法 (DEM) 提供了一个强大的工具来模拟和分析人类的过程.
  • 颗粒的特性显著影响时的食物碎片化和分布.
  • 数字建模推进了我们对消化过程中的生物机械过程的理解.