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相关概念视频

Sequence Networks of Rotating Machines01:24

Sequence Networks of Rotating Machines

127
A Y-connected synchronous generator, grounded through a neutral impedance, is designed to produce balanced internal phase voltages with only positive-sequence components. The generator's sequence networks include a source voltage that is exclusively in the positive-sequence network. The sequence components of line-to-ground voltages at the generator terminals illustrate this configuration.
Zero-sequence current induces a voltage drop across the generator's neutral impedance and other...
127
Hedgehog Signaling Pathway02:33

Hedgehog Signaling Pathway

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The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
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Multicompartment Models: Overview01:14

Multicompartment Models: Overview

200
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,...
200
Short-distance Transport of Resources02:12

Short-distance Transport of Resources

16.2K
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.
16.2K
Protein Diffusion in the Membrane01:24

Protein Diffusion in the Membrane

4.4K
Proteins show rotational as well as lateral diffusion across the membrane. The lateral diffusion of proteins was confirmed through the cell fusion experiment where mouse and human cells were fused, resulting in hybrid cells. When the human and mouse cells fused, the specific membrane proteins on human and mouse cells were marked with the red and green-fluorescent markers, respectively. Initially, the red and green fluorescence was located on the respective hemisphere of the cell. As time...
4.4K
Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

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Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
76

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相关实验视频

Updated: Jul 29, 2025

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays
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在部分映射双层超级网络中的供应链风险扩散.

Ping Yu1, Zhiping Wang1, Ya'nan Sun1

  • 1School of Science, Dalian Maritime University, Dalian 116026, China.

Entropy (Basel, Switzerland)
|May 27, 2023
PubMed
概括
此摘要是机器生成的。

消除过时的企业,而不是控制关键企业,在供应链风险扩散过程中增强了市场稳定性. 加强官方媒体信息减少了受感染的企业,同时减少了较低层的映射限制误导企业.

关键词:
动态进化的动态演变.流行病模型的流行病模型超级网络是一个超级网络.部分映射部分映射供应链风险 供应链风险

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科学领域:

  • 供应链管理 供应链管理
  • 网络科学 网络科学
  • 流行病学 流行病学

背景情况:

  • COVID-19的全球影响造成了不确定性,影响了供应链产品质量和工人效率.
  • 复杂的供应链网络容易受到不确定的信息驱动的风险扩散的影响.

研究的目的:

  • 使用双层超级网络在不确定的信息下建模和分析供应链风险扩散.
  • 调查不同节点移除策略对市场稳定性和风险传播的影响.

主要方法:

  • 开发了一种包含个体异质性的部分映射双层超级网络模型.
  • 利用从流行病学中汲取的敏感-潜在感染-康复 (SPIR) 模型来模拟风险扩散.
  • 采用微观马尔科夫链方法 (MMCA) 进行理论验证和Matlab模拟.

主要成果:

  • 消除老化的 (过时的) 企业对市场稳定更有效,而不是在风险扩散期间控制关键企业.
  • 增加上层映射 (权威信息传播) 会减少受感染企业的数量.
  • 减少下层映射减少了被误导的企业,从而削弱了风险感染效率.

结论:

  • 该研究强调了信息传播和网络结构在供应链风险管理中的关键作用.
  • 专注于消除过时企业和管理信息流的战略对于缓解风险扩散至关重要.
  • 开发的模型为提高供应链在不确定的环境中的弹性和稳定性提供了有价值的见解.