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中国第一个3D打印生物标本:世界上最后一只白海豚的完美复制_我的网站

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A |     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.。

B | 据1月13日《科学技术日报》官方微博报道,1月12日,湖北省武汉市中科院水产研究所展出了一只白鳍豚的3D打印标本。这是我国第一个三维印制生物标本。

C | 据报道,“齐琪”被认为是最后一只白海豚,在2002年被囚禁22年后死亡。

D | 3-D打印样本长2.07米,重约7公斤。它是从三维打印构建的“冰淇淋”三维数据模型中恢复出来的。据报道,“奇奇”是世界上最长的圈养海豚。1980年被渔民捕获并送往水生栖息地。自从2002年它死后,没有人见过活海豚。

E | 白鳍豚(学名:白鳍豚,lipotes vexillifer),又名:白鲸、白鳍、白旗、白夹、绿鳍、琵琶、中国鼠海豚、长江鼠海豚、长江河豚,是我国特有的淡水鲸种,只产于长江中下游。20世纪80年代,由于各种原因,海豚的数量急剧下降。

F | 2002年,据估计有不到50只海豚,被称为“水中大熊猫”。海豚属于自己的家族,被列为国家一级保护野生动物和世界上12种最濒危动物之一。2007年8月8日,一份报告发表在《英国皇家学会生物学快报》上,正式宣布了海豚的功能性灭绝。

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Published on:10:41:09


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