按照工信部关于在党史学习教育中开展“清明祭先烈”活动要求,黑龙江省通信管理局积极开展系列学习活动.rn4月2日组织全体党员干部进行线上学习祭奠活动,学习了王伟烈士入党
The purpose of this paper is to demonstrate an integrated optimization scheme for a solar-powered drone structure.Consider a primary beam in the wing of large aspect ratio,where 100 lithium batteries are assembled.In the proposed integrated optimization,t
Gas turbines have been used extensively for aircraft and marine propulsions as well as land-based power generation because of their high thermal efficiency and large power to weight ratios.To further increase the thermal efficiency,numerous prior research
3月24日,中共黑龙江省通信管理局直属机关委员会组织召开全体党员大会,动员部署2021年党史学习教育工作,局党组书记、局长乔发民同志主持会议、做动员讲话并宣读学习党史教育
Surface roughness is a critical health parameter of a turbine blade due to its implications on blade surface heat transfer and structural integrity.This paper proposes a physics-based online framework for Gas Turbine Engines(GTE),in order to assess the bl
The morphing wing concept aims to constantly adapt the aerodynamics to different flight stages.The wing is able to adapt to different flight conditions by an ad
Morphing leading edge has great potential for noise abatement and aerodynamic efficiency improvement.The drooping effect is realized by bending of the flexible skin which encloses to form the leading edge.Since the flexible skin is often made of composite
合理划分以国家公园为主体的自然保护地领域的财政事权和支出责任,是自然保护地资金机制良性运行、“生态保护第一”得以体现的基础。自然保护地财政事权和支出责任,从根本上是由保护地管理体制决定的。中国自然保护地管理体制正经历从各行业指导下的属地管理到统一管理改革的过渡时期,财政事权和支出责任也应做相应的调整和安排。但对国家公园试点区现状的分析表明,四种体制下的国家公园财政事权划分仍然都存在着不清晰、不合理、不规范的问题,其成因既有自然保护财政事权和支出责任划分历史问题的延续,也有机构改革带来的新的事权摩擦,同时还
3月25日,中共黑龙江省通信管理局直属机关委员会组织召开青年理论学习小组2021年第一季度集中学习交流会.重点学习《习近平在党史学习教育动员大会上的讲话》《习近平在中央
This work reveals that the addition of periodically distributed stitches to sandwich struc-ture enables a significant reduction of vibration in stop-band and th