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相关概念视频

Sequence Networks of Rotating Machines01:24

Sequence Networks of Rotating Machines

90
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...
90
Causality in Epidemiology01:21

Causality in Epidemiology

229
Causality or causation is a fundamental concept in epidemiology, vital for understanding the relationships between various factors and health outcomes. Despite its importance, there's no single, universally accepted definition of causality within the discipline. Drawing from a systematic review, causality in epidemiology encompasses several definitions, including production, necessary and sufficient, sufficient-component, counterfactual, and probabilistic models. Each has its strengths and...
229
Circuit Terminology01:14

Circuit Terminology

591
An electrical network is a system composed of interconnected elements, such as resistors, capacitors, inductors, and voltage or current sources. Unlike a circuit, an electrical network does not necessarily form a closed path. In other words, while all circuits can be considered networks due to their interconnected nature, not every network qualifies as a circuit.
A circuit, on the other hand, is also an interconnected system of electrical elements but must contain one or more closed paths.
591
Criteria for Causality: Bradford Hill Criteria - II01:28

Criteria for Causality: Bradford Hill Criteria - II

181
The Bradford Hill criteria serve as guidelines for establishing causative links in epidemiological research. Beyond Strength, Consistency, Specificity, and Temporality, key criteria also include Biological Gradient, Plausibility, Coherence, Experiment, and Analogy. These principles assist scientists in assessing the likelihood of causation in complex biological contexts. Below is a summary of these concepts:
181
Classification of Systems-I01:26

Classification of Systems-I

167
Linearity is a system property characterized by a direct input-output relationship, combining homogeneity and additivity.
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
167
Simplified Synchronous Machine Model01:30

Simplified Synchronous Machine Model

173
The Synchronous Machine Model is a fundamental tool in analyzing and ensuring the transient stability of power systems. This model simplifies the representation of a synchronous machine under balanced three-phase positive-sequence conditions, assuming constant excitation and ignoring losses and saturation. The model is pivotal for understanding the behavior of synchronous generators connected to a power grid, particularly during transient events.
In this model, each generator is connected to a...
173

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相关实验视频

Updated: May 25, 2025

Inherent Dynamics Visualizer, an Interactive Application for Evaluating and Visualizing Outputs from a Gene Regulatory Network Inference Pipeline
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探索工业联系中的因果网络复杂性:一项比较研究

Yongmei Ding1, Chao Huang1, Xubo Feng1

  • 1Department of Mathematics and Statistics, College of Science, Wuhan University of Science and Technology, Wuhan 430065, China.

Entropy (Basel, Switzerland)
|February 26, 2025
PubMed
概括

本研究使用部分交叉映射 (PCM) 对比了中国和美国的工业网络结构. 中国中国中国中国.

科学领域:

  • 经济学 经济学 经济学
  • 网络科学 网络科学
  • 工业组织 工业组织 工业组织

背景情况:

  • 工业联系对于经济增长和空间组织至关重要.
  • 了解跨行业因果关系是分析经济系统的关键.
  • 工业网络的比较研究提供了对国家经济性的见解.

研究的目的:

  • 分析和比较中国和美国工业生态系统中的因果网络复杂性.
  • 通过使用高频经济数据,调查关键行业的相互依赖和因果结构.
  • 评估两个经济体的网络拓和弹性.

主要方法:

  • 利用部分交叉映射 (PCM) 技术来捕捉动态相互作用和跨行业因果关系.
  • 分析了来自32个中国行业和11个美国行业 (2015-2023) 的高频经济数据.
  • 采用网络分析来比较拓和弹性.

主要成果:

  • 美国表现出多元化,以服务为导向的结构,金融和技术部门是关键的驱动力.
  • 中国的网络在重工业和制造业中显示出更高的中心地位,支持以出口为导向的增长.
  • 中国的工业结构显示出增强的网络稳定性和相互连接性.
关键词:
这是PCM的PCM.因果关系网络是因果关系网络.产业链接 产业联系网络弹性 网络弹性

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结论:

  • 由于强大的行业间联系,中国的工业网络提供了更大的稳定性和弹性.
  • 美国网络的有限节点可能会限制其整体弹性.
  • 对比分析揭示了主要经济体的不同结构动态和弹性因素.