DT4C电工纯铁套筒零件矫顽力不合格工艺改进

某批次DT4C电工纯铁套筒零件采用真空氢气退火炉经900℃中温退火后矫顽力不合格，对其退火工艺进行了研究。结果表明，采用1120℃×4 h+900℃×4 h两次退火后，DT4C电工纯铁试棒矫顽力及晶粒度等级较900℃×4 h退火明显降低，且1120℃→900℃过程中试棒不同冷速下的矫顽力均合格且差别不大，冷速可达到240℃/h,提高了零件的加工效率。不合格批套筒零件经两次退火后的矫顽力均达到HB/Z 5015—1994要求。     

Improving thermal comfort in mosques of hot-humid climates through passive and low-energy design strategies

Mosques have intermittent operational schedules with short-term occupancy during the five daily prayers. The occupancy level of the daily prayers is a fraction compared to the mandatory Friday prayers with full occupancy. Usually, the same thermal control mechanism is operated within the same large prayer hall to maintain the thermal comfort of the occupants. Yet, the comfort requirements are often not met due to the short span of operation during prayer times. Nevertheless, mosques have a very high energy usage as the same energy-intensive system is operated even during minimal occupancy profiles. The current research aims at using a passive approach towards design to achieve the comfort conditions during the low occupancy daily prayer times without employing mechanical intervention. Numerical simulations are carried out on a validated model of the case study building to investigate the impact of the west-facing Qiblah wall as the congregation stands in proximity to this wall. The design alternatives are tested in conjunction with ventilation strategies to holistically assess the thermal comfort of the occupants. Results show that as much as 4–6°C reduction in indoor wall surface temperature can be achieved with a suitable Qiblah wall design, which reduces the mean radiant temperature of the occupants by 2–4°C. Combined with ventilation strategies, thermal comfort can be significantly improved by at least 40% for the prayers during the hottest times of the day, and as much as 80% for night-time prayers. Results suggest that suitable comfort conditions can be achieved without the need for air-conditioning for at least two or three of the five daily prayers.     

浅谈影视剧中的非遗元素传播现状与发展策略

随着影视剧产业的发展，非遗为影视剧创作提供了文化资源，影视剧中的非遗元素渗透促进了新时代非物质文化遗产的传承与传播。当前影视剧中仍然存在非遗元素挪用不当、题材同质化严重、跨文化传播通路闭塞的问题。本文运用案例分析法、经验总结法提出建议，学习广告视听传播范式，助力观众非遗解码；影视剧赋能非遗元素活态化，满足观众审美追求，丰富影视剧审美意蕴；夯实影视非遗传播的跨文化实力基础，引领非遗走向世界，以期达到传播和弘扬非遗文化的目的。