With the continuous intensification of the global greenhouse effect,thermal comfort has become a highly concerned issue in the living environment.The study explores the influencing factors and improvement strategies o...With the continuous intensification of the global greenhouse effect,thermal comfort has become a highly concerned issue in the living environment.The study explores the influencing factors and improvement strategies of urban street thermal comfort.The urban heat island effect,environmental parameters,building layout,and green planting all have a significant impact on the thermal comfort of streets.Improvement strategies include optimizing cultivating pattern of plants,adjusting street layout,and improving paving materials of road.The multi-layer vegetation structure provides green shade,reduces local temperature,and humidifies the surrounding environment.It should adjust the street orientation and aspect ratio to provide sunlight and ventilation,and reduce ambient temperature.Paving materials with low reflectivity and light color and permeable underlying surface should be chosen to reduce heat absorption,increase shading and greenery,and improve thermal comfort.展开更多
目的:为掌握人体组织电磁特性的变化,实现对真实人体结构电磁辐射特性的模拟和仿真计算。方法:在中国数字可视化人体数据集基础上,提出建立真实人体三维电磁模型的方法并利用CST STUDIO SUITE对其进行电磁仿真计算。结果:构建了适用于...目的:为掌握人体组织电磁特性的变化,实现对真实人体结构电磁辐射特性的模拟和仿真计算。方法:在中国数字可视化人体数据集基础上,提出建立真实人体三维电磁模型的方法并利用CST STUDIO SUITE对其进行电磁仿真计算。结果:构建了适用于时域有限差分法计算的网格精度为1 mm^(3)的三维人体头部电磁模型,满足频率为30 GHz以下的电磁仿真计算在数值色散空间离散间隔上的要求。结论:该模型具有很好的可视性和可操作性,对构建数字电磁人以及优化生物电磁检测技术具有重要的理论价值和实践指导意义。展开更多
基金Sponsored by General Project of Natural Science Foundation of Beijing City(8202017)Youth Talent Support Program of 2018 Beijing Municipal University Academic Human Resources Development(PXM2018_014212_000043).
文摘With the continuous intensification of the global greenhouse effect,thermal comfort has become a highly concerned issue in the living environment.The study explores the influencing factors and improvement strategies of urban street thermal comfort.The urban heat island effect,environmental parameters,building layout,and green planting all have a significant impact on the thermal comfort of streets.Improvement strategies include optimizing cultivating pattern of plants,adjusting street layout,and improving paving materials of road.The multi-layer vegetation structure provides green shade,reduces local temperature,and humidifies the surrounding environment.It should adjust the street orientation and aspect ratio to provide sunlight and ventilation,and reduce ambient temperature.Paving materials with low reflectivity and light color and permeable underlying surface should be chosen to reduce heat absorption,increase shading and greenery,and improve thermal comfort.
文摘目的:为掌握人体组织电磁特性的变化,实现对真实人体结构电磁辐射特性的模拟和仿真计算。方法:在中国数字可视化人体数据集基础上,提出建立真实人体三维电磁模型的方法并利用CST STUDIO SUITE对其进行电磁仿真计算。结果:构建了适用于时域有限差分法计算的网格精度为1 mm^(3)的三维人体头部电磁模型,满足频率为30 GHz以下的电磁仿真计算在数值色散空间离散间隔上的要求。结论:该模型具有很好的可视性和可操作性,对构建数字电磁人以及优化生物电磁检测技术具有重要的理论价值和实践指导意义。
