乡村振兴视阈下右玉赛马运动小镇建设研究

研究目的:通过分析乡村振兴战略背景下山西右玉赛马运动小镇在基础设施建设、人才培养、品牌塑造建设中的不足并提出相应的策略。研究方法:文章运用文献资料法、实地考察法,调查山西右玉赛马运动小镇建设的生态地理资源和政策支持情况。研究结论:通过加大招商引资力度、加强校企合作意识、依托财政支持、挖掘赛马文化内涵来促进右玉赛马运动小镇建设,有效推动乡村振兴战略的实施。

浅析科技馆建筑交互性空间的营造与设计

文中从建筑层面出发,结合数字技术,研究科技馆中展览空间与人的互动关系,探索传统建筑空间与互动展示技术的融合,总结展览建筑中交互性空间的设计形式及方法,以促进科学技术的宣传和教育。

京奉铁路锦州段近现代铁路建筑遗产信息调研及分析

京奉铁路锦州段铁路建筑具有很高的历史、艺术、文化、科技等价值。文中在对京奉铁路锦州段遗产调查范畴进行界定的基础上,首先对锦州段建筑遗产的信息数据和遗产现状进行收集和统计;其次建立京奉铁路锦州段铁路建筑遗产数据库;最后通过空间分析法分析建筑遗产点的整体空间分布特征,以期为京奉铁路锦州段铁路建筑遗产的保护与再利用研究提供基础理论数据支撑。

High-Power All-Polarization-Maintaining Fiber Femtosecond Pulse Laser at 780 nm and Its Engineering Integration(Invited)

We present a high-power, high-stability all-polarization-maintaining(all-PM) fiber femtosecond pulse laser source at 780 nm with full engineering integration that comprises an all-PM fiber amplified chirped pulse laser at 1560 nm, a grating pair compressor and a second-harmonic generation(SHG) module. The all-PM fiber amplified chirped pulse laser at 1560 nm operates with a repetition rate of 111.5 MHz and an average power of 5.37 W, which is compressed with a pulse width of about 204 fs. The 780-nm pulses are subsequently generated by SHG in a frequency-doubling crystal. We achieve an average power of 2.22 W at 780 nm with a pulse width of 288 fs, a SHG efficiency of 52%, and a root-mean-square power fluctuation of 0.23%, which is the best performance merit as far as we know. The whole laser system is finally integrated for practical applications with reliable laser operation. We anticipate that this 780-nm all-PM fiber femtosecond pulse laser with full engineering integration is promising for frontier applications such as two-photon imaging, nanofabrication, terahertz generation, etc.