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相关概念视频

Sustainable Development01:43

Sustainable Development

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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.
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Modeling and Similitude01:12

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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...
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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...
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In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
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Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
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A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
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基于可持续发展目标的前性过程设计,使用混合建模.

Sachin Jog1, Daniel Vázquez2, Lucas F Santos1

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概括

过渡到可再生化学品需要评估气候变化之外的可持续性. 使用可持续发展目标 (SDGs) 和行星边界 (PBs) 的新框架优化了碳二氧化碳化成甲醇等过程,平衡了经济和环境因素.

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科学领域:

  • 可持续的化学过程设计.
  • 生命周期评估 (LCA) 是一种生命周期评估.
  • 可持续发展目标 (SDG) 是可持续发展的目标.

背景情况:

  • 用可再生替代品取代化石燃料对于可持续的化学过程至关重要.
  • 评估气候变化以外的影响对于真正可持续的转型至关重要.
  • 现有的框架可能无法完全捕捉到可持续发展的多面性质.

研究的目的:

  • 制定一个可持续过程设计框架,将可持续发展目标 (SDGs) 和行星边界 (PBs) 纳入其中.
  • 根据经济和可持续发展目标的表现,优化二氧化碳化成甲醇的过程.
  • 评估气候行动与其他环境影响之间的权衡.

主要方法:

  • 开发一种新的可持续工艺设计框架.
  • 标准生命周期评估 (LCA) 度量与行星边界 (PBs) 概念的整合.
  • 该框架应用于二氧化碳化成甲醇的工艺,优化经济和可持续发展目标的性能,使用混合替代品.

主要成果:

  • 环境最优的设计大大减少了对SDG13 (气候行动) 的影响,而不是与传统的 (BAU) 化石工艺相比.
  • 这种优化导致权衡,在短期内恶化其他环境类别.
  • 未来的LCA表明,由于未来的经济部门改进,附带损害大幅减少.

结论:

  • 可持续的工艺设计必须考虑超越气候变化的影响.
  • 结合LCA,SDGs和PBs的混合方法提供了全面的可持续性评估.
  • 开发的框架和优化方法有助于设计真正可持续的化学过程.