一 | NEW YORK -- Qatar Airways Group chief executive Akbar Al Baker is stepping down after 27 years leading the company.Al Baker's retirement will go into effect Nov. 5, Qatar Airways said Monday. He will be succeeded by Badr Mohammed Al-Meer — who currently serves as the chief operating officer of Hamad International Airport in Doha, the hub of Qatar's national carrier.In Monday's announcement, Qatar Airways said that it “has grown to become one of the most recognisable and trusted brands globally” under Al Baker's leadership. The company pointed to seven “World's Best Airline” wins, among other allocates.During his tenure at Qatar Airways, Al Baker became known for being one of the most outspoken leaders in the airline industry — with a hard-changing, sometimes confrontational approach that carried into negotiations with manufacturers and others.Al Baker has also made some controversial comments over his career — including suggesting that women can’t run airlines and for calling American carriers “crap” and that their passengers were “always being served by grandmothers.” He later apologized for both remarks.Last year, Al Baker lashed out at critics of Qatar hosting the FIFA World Cup, saying his nation will “always rub salt into the wound” of its adversaries — following concerns from some other countries and soccer teams over how Qatar manages its vast population of low-paid migrant workers and its stance on LGBTQ rights.In July, Qatar Airways reported a profit of $1.2 billion over the last fiscal year, boosted in part by the country’s hosting of the 2022 FIFA World Cup. That's down slightly from the $1.5 billion profit posted the year prior — in part due to a spike in operating expenses, particularly in jet fuels as energy prices rose after the grip of the pandemic loosened and air travel resumed.Qatar Airway's earned revenue of $20.9 billion over the fiscal year, up from $14.4 billion the year before.。 尽管水下机器人并不是新产品，但CSAIL团队表示，这些机器人通常被束缚在船只上。被称为SoFi的柔性机器鱼采取了一种不同的方法。其外部由硅橡胶和柔性塑料制成，里面是一个普通的锂聚合物智能电池，为电机提供动力，该电机将水泵入两个像气缸一样工作的气室，就像发动机中的活塞一样。为了让SoFi能够在不同深度游泳，该团队在每侧安装了两个鳍状物。它们配合可调整的重量舱和浮力控制单元，从而改变机器人在水中的垂直位置。虽然没有提到SoFi影响鱼类行为的潜力，但其柔性材料和安静的前行方式使得SoFi非常适合观察鱼类和其他海洋生物，但不会造成干扰。该团队在斐济的Rainbow Reef进行测试，使用防水的超级任天堂控制器和车载感应传感器引导其穿过水面，并使用车载摄像头拍摄高分辨率图像和环境视频。“据我们所知，这是第一种可长时间不受限制地在三维空间中游泳的机器鱼，”CSAIL博士候选人Robert Katzschmann表示。“我们很高兴能够使用像这样的系统来接近海洋生物，而不是人类可以靠自己获得的东西。
二 | ”该团队希望继续改进SoFi，让它能更快速地在水中前行，甚至能够自动追踪真正的鱼类。
三 | “我们认为SoFi是开发水下观测台的第一步，”CSAIL主管Daniela Rus表示。
四 | “它有可能成为海洋探索的新型工具，并为揭开海洋生物的奥秘开辟新的途径。”描述SoFi的研究论文发表在《科学·机器人学》杂志上。
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