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相关概念视频

Sustainable Development01:43

Sustainable Development

As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
Short-distance Transport of Resources02:12

Short-distance Transport of Resources

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.
Bus Impedance Matrix01:24

Bus Impedance Matrix

Calculating subtransient fault currents for three-phase faults in an N-bus power system involves using the positive-sequence network. When a three-phase short circuit occurs at a specific bus, the analysis uses the superposition method to evaluate two separate circuits.
In the first circuit, all machine voltage sources are short-circuited, leaving only the prefault voltage source at the fault location. The positive-sequence bus impedance matrix can be determined by solving the nodal equations,...
Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

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...
Levels of Use of a GIS01:29

Levels of Use of a GIS

Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
Selected Data About Geographic Locations01:25

Selected Data About Geographic Locations

Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...

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Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation
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来自里约热内卢的公共汽车移动性和环境指标数据集.

Diego Carvalho1, Vinícius Vancellote1, Pablo Moreira Casais1

  • 1Federal Centre for Technological Education of Rio de Janeiro (CEFET/RJ), Rio de Janeiro, Brazil.

Scientific data
|September 26, 2025
PubMed
概括
此摘要是机器生成的。

这项研究提供了关于里约热内卢的独特数据集.

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科学领域:

  • 城市规划和环境科学,重点关注公共交通,城市流动性和环境影响的交叉点.

背景情况:

  • 大城市的城市流动性受到人口增长,天气事件和交通拥堵等因素的重大影响.
  • 应对城市流动性挑战对于可持续发展至关重要,与联合国2030年议程保持一致.
  • 有效的城市交通规划需要整合各种数据源.

研究的目的:

  • 为了创建一个全面的时空数据集市政巴士在里约热内卢的移动性从2014年到2023年.
  • 整合估计污染气体排放量和降雨量数据.
  • 通过与现有的里约热内卢市政厅数据集进行集成来促进增强分析.

主要方法:

  • 编制关于市政公交车流动的时空数据.
  • 估计与公共汽车运输相关的污染气体排放.
  • 包括历史降雨量数据,按地区地理定位.

主要成果:

  • 开发一套新的数据集,将里约热内卢的公共汽车流动性,环境指标 (降雨量) 和污染物排放结合起来.
  • 该数据集独特地将公共汽车观测数据与邻近位置数据,降雨区域,体积和气体排放数据集成在一起.
  • 这个集成数据集的格式是为了与其他市政数据集的无兼容.

结论:

  • 该数据集为公共交通,环境指标和城市规划的联系提供了先进研究的基础.
  • 开辟了数据科学应用的途径,包括时间序列分析和与城市流动相关的地理空间研究.
  • 有助于更深入地了解公共交通系统对环境的影响.