Improvement of heat-tolerance by training I. Evaluation of effects of long-distance running and march training on heat-tolerance

in order to verify the heat-tolerance effect, two trainings, 90 min marching with load (WBGT 24. 6～35.6℃) and 10 km running (WBGT 25.0～31.1℃) were performed in laboratory and field under hot climate.Ten to twelve times (days) of training were carried out

Research on Optimizing the Construction of the Long March National Cultural Park from the Perspective of Cultural Route Heritage Protection

The idea of cultural route heritage protection expands the protection theory for world cultural heritage.The Long March route carries the prominent characteristic of cultural route heritage.By actively building the Long March National Cultural Park,China has strengthened the overall protection and integrated utilization of the Long March cultural heritage,upgraded the hardware facilities for exhibition,and investigated ways to protect cultural route heritage with Chinese characteristics.During the construction of the Park,it is necessary to draw on the concept and norms of the cultural route heritage protection,optimize the construction approach,and make the construction of the Park more in line with the linear cultural characteristics of Long March heritage.Specifically,it is proposed to improve the Long March cultural route heritage protection system oriented towards“authenticity”protection,to deeply tap and interpret the prominent universal worth of the Long March route,augmenting the international dissemination of the Long March culture in an innovative way,and realizing a more scientific and effective protection and utilization of Long March cultural resources.

An Analysis of the Festivals and Holidays Celebrated by the Red Army During the Long March

The Long March of the Chinese Workers’and Peasants’Red Army is hailed as the“Red Ribbon on the Earth.”The Long March was characterized by revolutionary heroism and,at the same time,was no lack of revolutionary romanticism.This arduous journey also presented two difficult questions:whether to celebrate festivals and holidays or not and whether to celebrate them simply or grandly.By exploring such trade-offs,we can appreciate a strong sense of national identity among the Red Army soldiers as idealists,grasp more historical details of the world-shattering Long March,and feel the resilience and greatness of the Chinese nation.

Elimination of the Potential Hazard of the Long March 4 Launch Vehicle's In-orbit Breakup

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CASC Eyes the Long March Vehicle's Reliability Improvement

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Long March Rockets Complete 2018 Missions with 37 Record-Setting Launches

A LM-2D/Yuanzheng 3 launch vehicle successfully launched 6 Yunhai 2 satellites and one test microsatellite named'Chongqing'into their preset orbits,concluding China’s final orbital launch of2018.The launch took place at 16:00 Beijing time on December 29,2018 from the Jiuquan Satellite Launch Center.

Flight Record of the Long March Series of Launch Vehicles

(Continued) The 75th Launch On December 30, 2003, the LM-2C/SM launch vehicle launched theTance 1 (TC-1) satellite into orbit from the Xichang Satellite Launch Center. The satellite entered a super geosynchronous orbit . Launch Site: Xichang Satellite Launch Center Launch Result: Success At 03:06 Beijing time on December 30, the LM-2C/SM launch vehicle lifted off into space with TC-1 (equatorial satellite) and precisely sent the satellite into

Flight Record of the Long March Series of Launch Vehicles

(Continued)The 71st Launch On October 15,2003,China's first manned spaceship,Shenzhou 5,was launched by a LM-2F launch vehicle.The first Chinese astronaut Yang Liwei stayed in space for 21 hours and landed back on the Earth safely on October 16。

Research on Overall Optimization Technology of Long March 6A Launch Vehicle

On March 29,2022,the Long March 6A launch vehicle developed by the Shanghai Academy of Space-flight Technology successfully made its maiden flight at the Taiyuan Satellite Launch Center.The Long March 6A launch vehicle was China’s first solid bundled rocket.It uses non-toxic and non-polluting propellants,and has a 700 km sun-synchronous orbit carrying capacity of no less than 4.5 t,which is more than 50%higher than that of a LM-4C launch vehicle.During the development of the LM-6A launch vehicle,the matching relationship between systems and the overall performance of the entire rocket improved significantly through continuous overall optimization work.This paper introduces the typical overall optimization work during the development of the LM-6A launch vehicle.

Long March 6A and Its Technical Characteristics

China’s first solid-liquid bundled launch vehicle,the Long March 6 A(LM-6 A)successfully adopted a number of key new technologies,launching the Pujiang 2 and Tiankun 2 satellites precisely into their predetermined orbits,thus demonstrating that China has mastered solid-liquid bundled launch vehicle technology and has a new member in the new generation launch vehicle family.For the first time in China,a booster adopted a 2 m-diameter solid motor and a 270 V,20 k W high-voltage and high-power electric servo system was used to control the swing of the solid motor nozzles.A health diagnosis system for the core first stage engine and unattended automation technology were also adopted for the first time.

Flight Record of the Long March Series of Launch Vehicles

(Continued)THE 67TH LAUNCHOn May 15, 2002, a LM-4B launch vehicle lifted off with FY-1D meteorological satellite and HY-1A oceanic satellite from Tai-yuan Satellite Launch Center and

Flight Record of the Long March Series of Launch Vehicles

(Continued)THE 67TH LAUNCHOn May 15, 2002, a LM-4B launch vehicle lifted off with FY-1D meteorological satellite and HY-1A oceanic satellite from Tai-yuan Satellite Launch Center and

Flight Record of the Long March Series of Launch Vehicles

(Continued) THE 59TH LAUNCH On November 20,1999,a LM-2F launch vehicle lifted off with China’s indigenous Shenzhou 1 experimental spaceship from Jiuquan Satellite Launch Center.Shenzhou 1 returned to Earth on November 21 after 21 hours of in-orbit operation and circling the Earth 14 times.

Long March Launch Vehicles Promote Quick and Sound Development of Satellite Applications

INTRODUCTION Launch vehicles are a precondition and main carrier for space activities for human beings.Their development have directly promoted the technology of satellite applications,manned spaceflight,deep space exploration,and promoted the development of communication,navigation,environmental monitoring,resource exploitation,scientific research and so on.

Flight Record of the Long March Series of Launch Vehicles

(Continued) The 79th Launch On September 9, 2004, a LM-4B launch vehicle launched two satellites, SJ-6A and SJ-6B, into space both for space environment exploration from the Taiyuan Satellite Launch Center. The two satellites entered their preset sun synchronous orbits. Launch Site: Taiyuan Satellite Launch Center Launch Result: Success At 07:14 Beijing time on September 9, the LM-4B launch vehicle was launched into space with SJ-6A and SJ-6B on board.

道义的虚弱和悲哀——由小说《March》引发的思考

长篇小说《March》讲述了美国内战前及内战中的一个故事。March先生是一位中年律师,他是美国内战的拥护者,同时又是一名暴力的废除主义者和反对者。在他一生中,他经历了道义上的巨大挑战。通过研读美国著名作家Geraldine Brooks所著March,探索了置道义于实践之中的艰难,揭露了道义的虚弱和悲哀的本质。

长征国家文化公园红色研学旅行的逻辑理路与铸魂育人机制

扎实推进长征沿线红色研学旅行高质量发展,充分激发红色基因铸魂育人价值功能,是大力弘扬革命文化和建好用好长征国家文化公园的关键路径。长征国家文化公园建设与红色研学旅行发展密切关联,遵循着马克思主义人的全面发展学说的理论逻辑、文化惠民和旅游为民的历史逻辑、建好用好国家文化公园的实践逻辑。当前,长征国家文化公园红色研学旅行发展现状与铸魂育人之需尚存差距,如实践育人动力不强、课程体系建设薄弱、师资队伍参差不齐、教学质量评估不足、安全出游存有隐患、保障能力有待提升等。未来,亟须从育人理念、师资建设、课程体系、质量评估、旅游安全和要素支撑等方面着力,系统构建长征国家文化公园红色研学旅行铸魂育人长效推进机制,以助力培养担当民族复兴大任的时代新人。

大中型液体运载火箭水平起竖与发射技术

未来大量中低轨商业卫星的发射任务对大中型运载火箭提出了快速测发的技术需求。地面发射支持系统针对CZ-8火箭需求,在传统运载型号已有技术的基础上,重点开展了箭体整体水平组装及起竖对接技术、快速智能测发技术的研究,旨在进一步提升火箭发射任务效率、简化发射场设施、降低发射成本。以箭体水平组装设备、整体转运起竖对接设备、智能供气系统为切入点,对相关技术进行了阐述,此外,还提出了吊具、支架车两种水平组装方案。对整体转运起竖对接精度影响因素进行了分析,并介绍了起竖托架的刚度提升方法。介绍了智能供配气总体方案、智能减压阀技术、供配气设备故障诊断技术。

“流空间-场所空间”视角下长征国家文化公园区域文化景观体系构建

【目的】构建区域文化景观体系,并探讨旅游流空间与场所空间的相互作用关系,以指导长征国家文化公园区域主题展示区的空间组织模式优化。【方法】通过“流空间-场所空间”视角,提出区域文化景观体系的空间结构要素,并运用社会网络分析识别区域旅游流网络结构特征。【结果】旅游流空间为场所空间提供感知需求,而场所空间为旅游流提供行为目标,这种相互作用关系体现了区域文化景观体系的空间结构的功能与价值两大特征;可通过“流—网—链—域—场—点”6个空间结构要素构建区域文化景观体系,并应用“斑块—廊道—节点”模式划定区域主题展示区;长征国家文化公园延安段可划分出6个主题展示区,其中甘泉县包含1个重点展示园、1条集中展示带和2个特色展示点。【结论】在“流空间-场所空间”视角下,区域文化景观体系构建要进一步挖掘区域性特征,而区域主题展示区的空间组织模式应综合考虑供需两侧的现实需求。这些发现为区域文化景观空间功能的研究提供了理论视角与体系结构,可对长征国家文化公园的具体建设提供直接支持。

长征精神助推中国式现代化建设的逻辑理路

伟大长征孕育伟大长征精神,长征精神具有永恒的时代价值。新时代新征程,牢记党的初心和使命、革命理想和革命宗旨,重温红军长征的丰功伟绩,弘扬伟大长征精神,是推进“人口规模巨大的现代化”“全体人民共同富裕的现代化”“物质文明和精神文明相协调的现代化”“人与自然和谐共生的现代化”“走和平发展道路的现代化”的内在要求和精神动力。