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相关概念视频

Multicompartment Models: Overview01:14

Multicompartment Models: Overview

497
Multicompartment models are mathematical constructs that depict how drugs are distributed and eliminated within the body. They segment the body into several compartments, symbolizing various physiological or anatomical areas connected through drug transfer processes such as absorption, metabolism, distribution, and elimination.
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
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Model Approaches for Pharmacokinetic Data: Distributed Parameter Models01:06

Model Approaches for Pharmacokinetic Data: Distributed Parameter Models

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Pharmacokinetic models are mathematical constructs that represent and predict the time course of drug concentrations in the body, providing meaningful pharmacokinetic parameters. These models are categorized into compartment, physiological, and distributed parameter models.
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...
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Modeling and Similitude01:12

Modeling and Similitude

604
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
604
Unsymmetric Loading of Thin-Walled Members: Problem Solving01:07

Unsymmetric Loading of Thin-Walled Members: Problem Solving

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The shear center of a channel section with uniform thickness, height, and width, is determined by computing the shear force in the member and calculating the moments of inertia of the sections.
To compute the shear forces, find the shear flow at a specific distance from the endpoint using the vertical shear and the moment of inertia values. The total shear force on the flange is calculated by integrating the shear flow from one end of the flange to the other.
Next, calculate the moments of...
489
Typical Model Studies01:30

Typical Model Studies

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Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
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Response Surface Methodology01:16

Response Surface Methodology

598
Response Surface Methodology (RSM) is a collection of statistical and mathematical techniques used to develop, improve, and optimize processes. It is particularly valuable when many input variables or factors potentially influence a response variable.
The process of RSM involves several key steps:
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一个多尺度拓优化设计框架与数据驱动的替代模型.

Han Zhou1,2, Chunping Zhou3

  • 1AVIC Research Institute for Special Structures of Aeronautical Composites, Jinan, 250032, China. 15954788652@163.com.

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概括
此摘要是机器生成的。

这项研究引入了一个新的多尺度框架,用于设计先进的超材料. 它可以同时优化材料特性和结构,以提高航空航天和生物医学领域的性能.

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科学领域:

  • 计算力学 计算力学 计算力学
  • 材料科学 材料科学 材料科学
  • 拓优化拓的优化

背景情况:

  • 传统的拓优化由于规模脱和计算成本而与功能分级的层次结构作斗争.
  • 设计复杂的高性能超材料需要先进的计算方法.

研究的目的:

  • 开发一个具有变革性的线下-线上多层次框架,用于设计功能分级的层次结构.
  • 为了实现对性能驱动的元材料的宏观拓和微观格子参数的同时优化.

主要方法:

  • 利用移动最小平方替代模型通过多尺度有限元分析实时绘制属性映射,绕过尺度分离.
  • 实施了一个统一的离散材料优化方案,用于对拓和格子参数的并发优化.
  • 验证了对几何复杂基准的框架.

主要成果:

  • 证明了优越的机械理性,具有负载路径对齐的配置不变性和自适应密度调制.
  • 实现了对空间配置分布和异性质性质分级的同时控制.
  • 桥梁高维设计自由与计算可处理性.

结论:

  • 开发的框架为设计以性能为导向的元材料建立了一个新的范式.
  • 为航空航天和生物医学应用提供制造现成的解决方案.
  • 克服了传统拓优化对等级结构的局限性.