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Chinese-made infrared telescope with domestic detectors achieves astronomical imaging, reducing foreign reliance_我的网站

一 | 1月15日，中国第一份“2019年新租赁经济报告”今天发布。报告指出，明年中国的租赁经济预计将超过10万亿元，参与租赁经济服务的人数将超过1亿。报告指出，近年来，在经历了“野蛮增长”和无序竞争之后，以存款为主要盈利模式的“伪共享经济”失去了活力，一些自行车企业破产，数千万用户的存款难以收回。    

    Ground-based infrared telescope installed at Saishiteng Mountain, Lenghu township, Northwest China's Qinghai Province Photo: Screenshot from gdstc.gd.gov.cn
Chinese scientists on Wednesday released the first complete set of observational images captured by China's new-generation ground-based infrared telescope, filling a gap in the country's near-infrared astronomical observation capabilities and reducing reliance on foreign infrared detector technology, China News Service reported on Wednesday. 
The 80-centimeter near-infrared telescope was installed at Saishiteng Mountain, Lenghu township, Northwest China's Qinghai Province in October 2024. Jointly developed by Sun Yat-sen University and several partner institutions, the telescope is China's first to achieve scientific imaging in the 1.2-micrometer J band and 2.2-micrometer K band using domestically developed scientific-grade InGaAs and HgCdTe detectors. 
The telescope enables unattended remote operations, and can lock onto any target in the sky within 15 seconds. Its infrared capability allows it to see through interstellar dust, enabling it to observe cold and distant celestial objects that are difficult for optical telescopes to capture. 
According to Ma Bin, a professor at the School of Physics and Astronomy, Sun Yat-sen University who led the research team that released the infrared telescope's observational images, all three of the telescope's core astronomical observation capabilities were fully validated during operation. 
It rapidly responded to and tracked multiple gamma-ray bursts and supernova events, recording the evolution of their infrared afterglows following the explosions. It continuously monitored brown dwarfs, precisely capturing periodic variations in their atmospheric brightness. Using image-stacking technology, it also observed active galaxies billions of light-years away. 
Since its deployment in Lenghu, the system has supported infrared observations for more than 10 Chinese research institutions, accumulating valuable experience for the construction of future large-scale infrared telescopes. 
Lenghu township, where the world-class astronomical observation base takes shape, is hailed as "the most Mars-like place on the Earth." The astronomical observation base was said to be an astronomical observation site comparable to the top ones in the world by a Nature article published on August 18, 2021, according to the Chinese Academy of Sciences. 
Once prospered in 1950s due to its rich petroleum resources, Lenghu is now becoming a premier astronomical observation site and Mars-themed tourist destination, according to Xinhua News Agency.
Global Times
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二 | 据调查，自去年以来，用户对存款模式一直很抵触，这种模式已经开始失去市场。经过多次存款风暴，芝麻信用豁免模式已成为一种新的主流趋势。目前，用户可以在数百种业务场景中获得免信用服务。据报道，芝麻信用的目标是消除“存款”，以彻底缓解消费者对金融安全的担忧。有关官员透露，截至年底，芝麻街信用已累计为用户提供超过1000亿元的无抵押贷款。据研究开发，自去年以来，无抵押租赁市场有三大趋势：一是三、四线城市的崛起，用户的快速增长，占总用户的近30%；二是年轻化趋势明显，80、90岁后占总用户的90%以上。此外，2018年，用户租赁的商品更为丰富，3C数码、服装配件、书籍成为最常用的物品。商品、个人物品可以免收的押金金额也在不断增加。但是，实施免信服务的企业由于用户数量的快速增长，没有出现明显的资金损失，甚至更快地进入盈亏平衡期。芝麻信用数据显示，在手机、3C数码、服装、收费宝等领域，大部分商品的违约率在免存后下降了一半，新增用户增长了60%以上。如今，从衣服到电脑、玩具和婴儿车，都可以出租。

三 | 无论是高频日用品还是高价值数码奢侈品，都可以通过租赁获得使用权，这已成为年轻人追求优质生活的新途径。

四 | 关于新租赁经济的未来前景，据报道，2018年，中国租赁经济市场成交额将超过6.3万亿元，预计到明年将超过10万亿元，参与租赁经济的服务商数量将超过1亿人。

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Published on:07:08:21