Incident particles in the Klein tunnel phenomenon in quantum mechanics can pass a very high potential barrier.Introducing the concept of tunneling into the analysis of phononic crystals can broaden the application pro...Incident particles in the Klein tunnel phenomenon in quantum mechanics can pass a very high potential barrier.Introducing the concept of tunneling into the analysis of phononic crystals can broaden the application prospects.In this study,the structure of the unit cell is designed,and the low frequency(<1 k Hz)valley locked waveguide is realized through the creation of a phononic crystal plate with a topological phase transition interface.The defect immunity of the topological waveguide is verified,that is,the wave can propagate along the original path in the cases of impurities and disorder.Then,the tunneling phenomenon is introduced into the topological valley-locked waveguide to analyze the wave propagation,and its potential applications(such as signal separators and logic gates)are further explored by designing phononic crystal plates.This research has broad application prospects in information processing and vibration control,and potential applications in other directions are also worth exploring.展开更多
ChatGPT的横空出世,将新一代人工智能推到了风口浪尖。以2017年至2023年2月21日Scopus与Web of Science中ChatGPT相关技术科研成果为研究对象,通过科学计量方法,从全球概况、国家表现、领先机构、杰出人才、研究热点等方面对ChatGPT相...ChatGPT的横空出世,将新一代人工智能推到了风口浪尖。以2017年至2023年2月21日Scopus与Web of Science中ChatGPT相关技术科研成果为研究对象,通过科学计量方法,从全球概况、国家表现、领先机构、杰出人才、研究热点等方面对ChatGPT相关技术的研究态势开展研究。研究发现:该领域相关研究已步入高速发展阶段,研究成果总体上呈井喷式增长;中国科研体量世界第一,美国仍是最受认可的研究领跑者;中国高校科研产出占绝对优势,美国企业的发文影响力傲视群雄;亚洲地区国际合作发文水平显著低于欧美地区;顶尖学者主要来自美国、中国和英国;研究热点集中于人机交互、算法模型、自然语言处理领域。展开更多
基金supported by the National Natural Science Foundation of China(No.12172297)the Open Foundation of State Key Laboratory of Structural Analysis for Industrial Equipment of China(No.GZ22106)the Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University of China(No.CX2023055)。
文摘Incident particles in the Klein tunnel phenomenon in quantum mechanics can pass a very high potential barrier.Introducing the concept of tunneling into the analysis of phononic crystals can broaden the application prospects.In this study,the structure of the unit cell is designed,and the low frequency(<1 k Hz)valley locked waveguide is realized through the creation of a phononic crystal plate with a topological phase transition interface.The defect immunity of the topological waveguide is verified,that is,the wave can propagate along the original path in the cases of impurities and disorder.Then,the tunneling phenomenon is introduced into the topological valley-locked waveguide to analyze the wave propagation,and its potential applications(such as signal separators and logic gates)are further explored by designing phononic crystal plates.This research has broad application prospects in information processing and vibration control,and potential applications in other directions are also worth exploring.
文摘ChatGPT的横空出世,将新一代人工智能推到了风口浪尖。以2017年至2023年2月21日Scopus与Web of Science中ChatGPT相关技术科研成果为研究对象,通过科学计量方法,从全球概况、国家表现、领先机构、杰出人才、研究热点等方面对ChatGPT相关技术的研究态势开展研究。研究发现:该领域相关研究已步入高速发展阶段,研究成果总体上呈井喷式增长;中国科研体量世界第一,美国仍是最受认可的研究领跑者;中国高校科研产出占绝对优势,美国企业的发文影响力傲视群雄;亚洲地区国际合作发文水平显著低于欧美地区;顶尖学者主要来自美国、中国和英国;研究热点集中于人机交互、算法模型、自然语言处理领域。
