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Crewed Mission to Mars May Be Exposed to Unsafe Levels of Radiation, Study Warns_我的网站

一 |     　　中新社北京8月25日电 (记者 王梦瑶)四川省数据局局长顾红松25日在北京表示，截至目前，“天府号”跨境公路班车物贸一体化数字平台常态化运营东盟、中亚、西欧、中东欧等8条跨境线路，通达亚欧大陆20余个国家的核心城市，累计发运超7000班次，跨境公路运输时效平均缩短35%。　　在中国国家数据局当天举行的“数据价值化 我们在行动”第五场新闻发布会上，顾红松表示，“天府号”跨境公路班车物贸一体化数字平台围绕“订单—调度—通关—结算”全链条业务流程，推动构建跨区域、跨行业的数据协同机制，破解跨境物流“信息孤岛”难题，提升运输效率、降低运营成本、保障运输安全。

二 | 　　据介绍，该平台根据实际业务需求，归集海关通关、口岸作业、交通路况、气象预警、监管执法等10大类30余项公共数据资源。    While scientists and science fiction authors alike have long dreamed of sending crewed missions to Mars, a new study suggests these plans may hit a snag – a big one.,The authors of a yet to be peer-reviewed study argue that the participants of such a mission to Mars would end up being exposed to radiation – namely, to “energetic charged particles from Galactic and Solar origin” – both while in transit and while on the planet itself, with the “thin spacecraft shield” and “rarefied Martian atmosphere” offering little in the way of protection.,The research team attempted to gauge the impact of a simulated 1,000-day mission to Mars on various organs of the human body, and concluded that astronauts may be exposed to radiation doses above one Sievert, which is over the safe limit set by most space agencies, New Scientist points out.,“We suggest mitigation strategies such as improved ways of shielding and dietary supplements, and make recommendations for the safety of astronauts in future crewed missions to Mars,” the team wrote in the abstract of their work available on the arXiv preprint server.,Ideas about how astronauts may be protected from radiation during a mission to Mars have already been proposed, such as the concept of a radiation shield comprised of a fungus found growing at the Chernobyl Nuclear Power Plant.,Last year, one architecture studio even unveiled a project for a self-sufficient and sustainable city that would be built on the red planet itself.。目前，已累计归集基础公共数据约1000万条、积累全链路业务数据500余万条。　　平台还搭建实时货物追踪与调度系统，深度融合北斗卫星定位、AI算法、温控溯源等技术手段，实现车辆位置、状态、货物安全全程监控，根据运营统计，货损率下降超60%、运输事故率下降超50%。搭建数据整合管理系统，整合利用交通路况、气象预警、口岸作业、订单运力等数据，为路径选择和运力匹配提供辅助支撑，减少空驾、中转和重复调度，根据运营统计，跨境运输时效明显缩短，中亚、东盟核心线路综合物流成本下降超10%。　　顾红松称，下一步，平台将在现有业务和场景基础上，持续完善跨境物流数据目录、接口规范和数据安全管理机制，稳步推进与有关口岸、运输节点及服务平台的数据协同，全面提升多式联运组织和全链条服务能力。

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Published on:01:17:45