THERE is a 3D printing lab in the First Ward Zone of the Department of Orthopedics at Peking University Third Hospital(PUTH).Although not big,it’s where Professor Liu Zhongjun,director of the department,spends most...THERE is a 3D printing lab in the First Ward Zone of the Department of Orthopedics at Peking University Third Hospital(PUTH).Although not big,it’s where Professor Liu Zhongjun,director of the department,spends most of his time,when not dealing with patients and students.展开更多
Researchers from the CAS Key Laboratory of Quantum Information,University of Science and Technology of China have just achieved a significant progress in quantum key distribution research.Based on the self-developed a...Researchers from the CAS Key Laboratory of Quantum Information,University of Science and Technology of China have just achieved a significant progress in quantum key distribution research.Based on the self-developed active switching technology,they successfully conducted the world's longest-more than 90km-round-robin differential phase shift(RRDPS)quantum key distribution experiment.展开更多
文摘THERE is a 3D printing lab in the First Ward Zone of the Department of Orthopedics at Peking University Third Hospital(PUTH).Although not big,it’s where Professor Liu Zhongjun,director of the department,spends most of his time,when not dealing with patients and students.
文摘Researchers from the CAS Key Laboratory of Quantum Information,University of Science and Technology of China have just achieved a significant progress in quantum key distribution research.Based on the self-developed active switching technology,they successfully conducted the world's longest-more than 90km-round-robin differential phase shift(RRDPS)quantum key distribution experiment.