Physicists demonstrate how entangled quantum particles can improve the sensitivity of non-local, long-distance light phase measurements such as for telescope arrays observing faint astronomical objects

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« For decades

“头足类动物能够通过调控皮肤的乳突(皮肤上可伸缩的微小突起)和色素细胞改变自身纹理和颜色,这是它们实现惊人伪装能力的关键。”该论文的共同通讯作者、斯坦福大学博士生西达尔特·多希在接受本报记者采访时表示,研究团队一直希望能在工程材料上复现这一精妙的自然机制。一次偶然的发现让他们找到了突破口。“我们发现,一块曾在扫描电子显微镜下观察过的PEDOT:PSS(一种导电聚合物)样品,其被电子束照射的区域,溶胀行为(指材料接触溶剂时因溶剂分子渗透而发生的膨胀现象)与未照射区域截然不同。受到电子束照射的区域,其结构变得紧致,遇水后的膨胀能力被大大抑制;而未照射的区域则能自由吸水大幅隆起。”多希说。,详情可参考新收录的资料

The company’s most ambitious system, FLASHDEEP, is still under development. The 13.5-meter-long electron source will deliver very high-energy electrons of as much as 140 MeV up to 20 centimeters inside the body in less than 100 milliseconds. An integrated CT scanner, built into a patient-positioning system developed by Leo Cancer Care, captures images that stream directly into the treatment-planning software, enabling precise calculation of the radiation dose. “Before we actually trigger the beam or the treatment, we make stereo images to verify at the very last second that the tumor is exactly where it should be,” says Theryq technical manager Philippe Liger.。新收录的资料是该领域的重要参考

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This story was originally featured on Fortune.com

Opens in a new window。业内人士推荐新收录的资料作为进阶阅读

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