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

一 |     8月24日消息,德国人最不愿意看到的一幕发生了:     原本由奥迪与上汽联手打造、专供中国市场、没有任何欧洲出口计划的 AUDI E5 Sportback轿跑与E7X SUV两款纯电车,经由德国第三方平行进口商Auto China完成采购、海运、欧盟法规认证,正式登陆奥迪的本土老家德国,可以合法上牌上路行驶!     这两款车型归属奥迪专为中国设立的子品牌AUDI,整车基于联合开发的ADP高级数字化平台打造,外观上不再使用奥迪经典四环车标,车尾替换为大写“AUDI”字母标识。    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.。    深度适配国内车机生态、智能座舱与本土用户使用习惯,研发之初就定位中国市场,大众集团官方明确表态,不会将这两款车官方出口欧洲市场。     价格层面形成强烈反差,E5 Sportback国内起售价20.59万元,E7X国内起售价26.98万元,经过采购、远洋运输、欧盟反补贴关税、增值税、单车认证等多重成本叠加之后,两款车在德国市场售价几乎翻倍,E5 Sportback税前标价59980欧元,E7X起售价72900欧元。    即便成本大幅抬升,对比德国本土生产的奥迪同级电车依旧具备明显优势:     E5 Sportback顶配双电机版本最大可输出776马力,零百加速3.4秒,搭载100kWh 800V高压电池,CLTC续航647公里;而德国本土生产的奥迪S6 Sportback e?tron,动力仅543马力,售价却高出接近2.8万欧元,性能更低、价格更贵,对比鲜明。     硬件配置上,两款中国特供车型配备大尺寸中控屏幕、完整的本土化智能座舱、高阶智驾系统,座舱交互、车联网功能都是按照中国消费者需求调校。    整件事讽刺之处在于,大众集团此前一直在游说欧盟,希望加征关税阻挡中国产电动车流入欧洲市场,结果率先闯入德国市场的,反而是自家在中国合作生产的限定车型。     德国本土汽车行业对此态度分化,部分经销商表达担忧,提醒进口存在残值、维修的潜在风险;不少普通德国消费者却十分感兴趣,此外还有不少的国网友在社交平台吐槽,同样是奥迪技术,本土在售车型性能弱、定价更高。              

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