相关实验视频
Updated: Jul 1, 2025

08:23
Finite Element Modelling of a Cellular Electric Microenvironment
Published on: May 18, 2021
3.4K
研究建筑材料供需和社区特征复杂网络建模的研究
Likun Zhao1, Mengqian An1, Hui Yuan1
1North China University of Technology, Beijing, 100144, China.
Heliyon
|March 12, 2024
概括
中国的建筑材料市场显示了随着时间的推移不断发展的社区结构和地理集群. 分析显示,越来越多的大型社区和省级聚集地,特别是在沿海地区.
科学领域:
- 复杂网络理论应用于供应链分析.
- 经济地理和工业组织.
背景情况:
- 中国的建筑材料市场以高交易量为特征.
- 对供需动态的全面了解对于市场效率至关重要.
研究的目的:
- 构建一个复杂的建筑材料供应和需求在中国的网络模型.
- 分析市场内的社区结构和地理聚合.
- 为建筑行业提供理论和方法的支持.
主要方法:
- 构建一个复杂的供需网络模型.
- 改进了路凡算法用于网络社区检测.
- 使用预制元件数据进行实证分析 (2017-2022年).
主要成果:
- 网络社区从2017-2022年从小型转变为大型和中型.
- 更大的社区表现出更高的内部连接性.
- 地理聚集地出现了,具有省界和沿海分布.
结论:
- 建筑材料供需网络展现了动态的社区演变.
- 地理因素显著影响供需的空间分布.
- 调查结果为优化建筑材料市场和行业发展提供了见解.
相关概念视频
Distributed Loads: Problem Solving
645
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
645
Design Example: Sustainability in Concrete Building
167
As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
167
Modeling and Similitude
267
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...
267
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
46
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...
46
Typical Model Studies
359
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.
359
Network Covalent Solids
13.5K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
13.5K

