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相关概念视频

Design Example: Sustainability in Concrete Building01:26

Design Example: Sustainability in Concrete Building

188
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...
188
Design Example: Managing Concrete Workability01:14

Design Example: Managing Concrete Workability

100
This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
100
Study Designs in Epidemiology01:20

Study Designs in Epidemiology

263
Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
263

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相关实验视频

Updated: Jul 16, 2025

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
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测试建筑环境变化的示范项目:系统审查

Laura E Balis1, Gwenndolyn Porter, Michelle Grocke-Dewey

  • 1Gretchen Swanson Center for Nutrition, Omaha, Nebraska (Dr Balis); University of Nebraska Medical Center, Omaha, Nebraska (Dr Porter); and Montana State University, Bozeman, Montana (Dr Grocke-Dewey).

Journal of public health management and practice : JPHMP
|September 15, 2023
PubMed
概括

建筑环境变化的示范项目显示出有效性和社区接受,但很少导致永久的基础设施改进. 需要更多的指导来进行关于体育活动影响的强有力的数据收集.

科学领域:

  • 公共卫生 公共卫生
  • 城市规划 城市规划
  • 环境科学 环境科学

背景情况:

  • 建筑环境干预措施旨在通过默认健康选择来增加身体活动.
  • 在永久实施之前,示范项目对这些干预措施进行测试,但其长期影响尚不清楚.

结论:

  • 总体而言,由于不一致的报道覆盖范围和体育活动变化,公众健康的影响尚不清楚.
  • 社区反总体上是积极的,但长期变化影响仍然不确定.
  • 建议对示范项目进行改进的指导,以加强数据收集和评估.

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