Folding bikes are a form of bicycles, which can be folded in a way that they occupy less space and at the same time are lighter in weight so that they can be carried easily from one place to another. When folded, the bikes can be more easily carried into buildings, on public transportation and more easily stored in compact living quarters or aboard a car, boat, or plane. Depending on the design of the bikes, the folding structure varies from model to model, which helps in folding the bikes so that it occupies less space. The folding bikes market has witnessed significant growth over the years, owing to increasing trend of advanced vehicles which occupy less space; thus, leading to the growth of the global market.

就地过年政策导致春运前期客流大幅下降，但春运后期客运量快速恢复，目前国内疫情管控成效显著，居民出行信心增加，即将到来的五一假期航空需求有望迎来集中释放。此外，随着疫苗接种进度的推进，国际航线有望逐步放开。我们认为民航选股一是关注运量恢复快、有望较早实现扭亏的低成本民营航空；二是关注内线占比较高、业绩弹性大的大型航空公司。

Railway maintenance is a process of preserving the working condition of a railway track. Tamping machine, tampers, ballast regulators, dynamic track stabilizers, ballast cleaners, and ballast under cutters are some machineries used in railway maintenance applications. Maintenance is very important in every industry for smooth and effective functioning. Ballast cleaning, and track tamping are some of the activities carried out while railway maintenance applications. The global railway maintenance machinery market is segmented based on product type, application, sales type, and region. Based on product type, the market is divided into tamping machine, stabilizing machinery, rail handling machinery, and ballast cleaning machinery. Based on application, the market is divided into ballast track and non-ballast track. Based on the sales type, the market is divided into new sales and aftermarket sales.

Space rover is a special vehicle designed to traverse over irregular, mountainous topography of extraterrestrial bodies such as planets and asteroids. The design and operation of space rovers depends upon data acquired through satellites that orbit around a celestial body. Rovers are designed to endure extreme atmospheric conditions, are fitted with superior equipment and payload, and are meticulously programmed to operate in accordance with the surroundings. Increase in investments for R&D by major space agencies and on-going advances in design of space rovers are anticipated to increase usability of rovers. For instance, Japan’s space agency JAXA and Toyota are collaborating to build a hydrogen powered rover, named, Lunar Cruiser that would be capable of transporting two astronauts and their gear on the Moon.

The deployment of train control management system can vary depending upon the operation requirement of the train and market segment, however, the purpose and the benefits of the train control management system remains same across all the architectures. In addition, latest train control management system available in the market can be integrated with the third-party subsystems, as the designs are modular and use internationally standardized interfaces. Furthermore, migration of functionality from supplier domain to train control management system can reduce the complexity and cost of overall train solution.

Stealth coating is a radar absorbing material applied on the aircrafts to reduce radar cross-section; thereby, making them difficult to detect by radars. In addition, it is also applied on the cars for UV protection and protection from chips, scratches, road debris, & malicious damages. The report mainly emphasizes on stealth coating and their resin types, which include epoxy, polyurethane, and polyimide. The report also analyzes the current trends and future opportunities in different applications of stealth coating such as aerospace & defense and automotive. The report analyzes the market trends across North America, Europe, Asia-Pacific, and LAMEA. In addition, it also highlights market dynamics that impact the growth of the global market such as key drivers, restraints, growth opportunities, and the role of key players.

过去几个月，全球看：1）我们注意到全球卫星互联网建设正在加速，如“starlink”已经发射第23 批卫星，而Oneweb 经历破产风波后今年也再次发射36 颗星，韩国著名公司韩华集团也加入卫星互联网阵营。卫星互联网行业的竞争正变得更加激烈但格局整体未变。2）备受世界关注的马斯克“Starship 星舰”飞行器密集试验，虽仍未成功但进展迅速。3）今年3 月份，苏伊士运河发生堵塞事件，卫星遥感在此事件中发挥了及时、直观的态势感知作用，进一步证明了遥感卫星在商业应用中的价值。

美联航是美国三大航之一。其发展过程曲折，曾多次濒临破产，是航空业危机投资的典型案例之一。美联航作为911事件被劫航司之一，事件发生后需求端遭受重创，成为美国航空史上破产保护时长最久的航司。2009年美联航再次险些申请破产，次年合并大陆航空成为当时世界上规模最大航司，成功走出困境，总市值也从底部的50亿元上涨到了2019年的近1500亿元， 涨幅约30倍。2019年美联航总收入为3011亿元，净利润为209亿元，运输旅客1.62亿人次，自有机队规模达到1016架。