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上海交通大学学报 2002年第8期36卷 1100-1103页

作者：李自军洪迈生王立江赵宏伟苏恒魏元雷上海交通大学机械与动力工程学院上海200030 吉林大学机械工程学院长春130025

针对叠层复合材料的微小孔加工 ,提出了阶跃式多元变参数振动钻削新方法 .在钻入、钻中、交互区和钻出的多区段钻削模型基础上 ,分析了交互区的分厚切削特性、自然分屑特性和多倍分离断屑特性 .以入钻定位误差、孔扩量、出口毛刺高度作... 详细信息

针对叠层复合材料的微小孔加工 ,提出了阶跃式多元变参数振动钻削新方法 .在钻入、钻中、交互区和钻出的多区段钻削模型基础上 ,分析了交互区的分厚切削特性、自然分屑特性和多倍分离断屑特性 .以入钻定位误差、孔扩量、出口毛刺高度作为钻削过程质量评价指标 ,进行了多元正交多项式回归优化试验 .结果表明 ,阶跃式多元变参数振动钻削显著提高了孔的加工精度。

关键词：叠层复合材料阶跃式变参数振动钻削动态特性加工精度微小孔加工分厚切削

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日面高纬黑子与太阳活动

天文学报 1999年第4期40卷 435-438页

作者：李可军洪琴芳顾啸马中国科学院云南天文台昆明650011

利用云南天文台太阳黑子观测资料，对太阳活动第１９周至第２２周日面高纬度（高于４０°）的黑子群进行了统计．结果表明：高纬黑子面积绝大部分小于１００，平均５６，寿命大部分为１～３天，平均４天；黑子分类绝大部分为... 详细信息

利用云南天文台太阳黑子观测资料，对太阳活动第１９周至第２２周日面高纬度（高于４０°）的黑子群进行了统计．结果表明：高纬黑子面积绝大部分小于１００，平均５６，寿命大部分为１～３天，平均４天；黑子分类绝大部分为ＡＸＸ、ＨＳＸ、ＢＸＯ，其中ＡＸＸ约占总数的一半．高纬黑子在日面南北半球上的不对称分布可用来预报该太阳周内的太阳活动在南北半球上的主次．由此预报２３

关键词：太阳活动黑子日面高纬黑子分类

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先行分离直行运动误差的二次相移三点法

上海交通大学学报 2002年第8期36卷 1057-1059,1063页

作者：李自军洪迈生叶飞帆苏恒魏元雷上海交通大学机械与动力工程学院上海200030 宁波大学工学院宁波315211

现代检测与补偿技术越来越要求测量的高精度和实时性 ,通过直接获取运动误差以避免误差残留的二次相移三点法 ,为运动误差的在线高精度检测提供了一条有效途径 .通过对 3个传感器的测量数据按照二次相移原则进行数据重组 ,在数据处理的... 详细信息

现代检测与补偿技术越来越要求测量的高精度和实时性 ,通过直接获取运动误差以避免误差残留的二次相移三点法 ,为运动误差的在线高精度检测提供了一条有效途径 .通过对 3个传感器的测量数据按照二次相移原则进行数据重组 ,在数据处理的首次操作时消除直线形状误差的影响 ,从而在反滤波基础上可以先行分离出直行运动误差的平移分量和转动分量 .利用权函数对比分析 ,证明了二次相移三点法与先行分离形状误差的直线频域三点法在本质上的同源性和统一性 .实验结果表明。

关键词：二次相移三点法误差分离技术直行运动误差误差测量平移分量转动分量权函数

Targeting cholesterol trafficking to mitigate axonal degeneration in hereditary spastic paraplegia

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Neural Regeneration Research 2025年第5期20卷 1397-1398页

作者： Zhenyu Chen Xue-jun li Department of Biomedical Sciences University of Illinois College of Medicine RockfordRockfordILUSA Department of Bioengineering University of Illinois at ChicagoChicagoILUSA

Axonal degeneration underlies many debilitating diseases including hereditary spastic paraplegia(HSP),a genetically and clinically diverse group of disorders characterized by spasticity and weakness of the lower *** is one significant cause of chronic neurodisability due to the lack of effective treatments and a wide range of onset ages from early childhood to 70 years.

关键词： degeneration diseases hereditary

Quantum public-key crypto via EPR pairs

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 58-63页

作者： Xiang-Qun Fu hong-Wei li Jian-hong Shi Tan li Wan-Su Bao Henan Key Laboratory of Quantum Information and Cryptography Information Engineering University Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China

With the development of quantum computing technology, quantum public-key cryptography is gradually becoming an alternative to the existing classical public-key cryptography. This paper designs a quantum trapdoor one-way function via EPR pairs and quantum measurements. Based on this, a new quantum public-key cryptosystem is presented, which offers forward security,and can resist the chosen-plaintext attack and chosen-ciphertext attack. Compared with the existing quantum public-key cryptos,eavesdropping can be automatically detected in this new quantum public-key cryptosystem under a necessary condition, which is also detailed in the paper.

关键词： quantum public-key crypto trapdoor one-way function EPR pairs

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交流永磁同步电机伺服系统的变结构控制

微特电机 2004年第1期32卷 26-28页

作者：李军红陈潮填唐忠平广东工业大学广东广州510090 广东技术师范学院广东广州510665

运用变结构控制理论 ,分析和设计永磁同步电机磁场定向交流伺服系统 ,并采用了基于观测器重构状态的控制方案。仿真实验表明 ,采用变结构控制的伺服系统响应速度快 ,控制精度高 ,对负载变化和自身参数扰动具有较好的鲁棒性 ,其调速和定... 详细信息

运用变结构控制理论 ,分析和设计永磁同步电机磁场定向交流伺服系统 ,并采用了基于观测器重构状态的控制方案。仿真实验表明 ,采用变结构控制的伺服系统响应速度快 ,控制精度高 ,对负载变化和自身参数扰动具有较好的鲁棒性 ,其调速和定位性能明显优于传统的控制方法。

关键词：交流永磁同步电机伺服系统变结构控制鲁棒性数学模型解耦控制

Tailoring light–Matter Interactions in Overcoupled Resonator for Biomolecule Recognition and Detection

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Nano-Micro Letters 2025年第1期17卷 262-280页

作者： Dongxiao li hong Zhou Zhihao Ren Cheng Xu Chengkuo Lee Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore Center for Intelligent Sensors and MEMS(CISM) National University of SingaporeSingapore 117608Singapore

Plasmonic nanoantennas provide unique opportunities for precise control of light–matter coupling in surface-enhanced infrared absorption(SEIRA)spectroscopy,but most of the resonant systems realized so far suffer from the obstacles of low sensitivity,narrow bandwidth,and asymmetric Fano resonance ***,we demonstrated an overcoupled resonator with a high plasmon-molecule coupling coefficient(μ)(OC-Hμresonator)by precisely controlling the radiation loss channel,the resonator-oscillator coupling channel,and the frequency detuning *** observed a strong dependence of the sensing performance on the coupling state,and demonstrated that OC-Hμresonator has excellent sensing properties of ultra-sensitive(7.25%nm^(−1)),ultra-broadband(3–10μm),and immune asymmetric Fano *** characteristics represent a breakthrough in SEIRA technology and lay the foundation for specific recognition of biomolecules,trace detection,and protein secondary structure analysis using a single array(array size is 100×100μm^(2)).In addition,with the assistance of machine learning,mixture classification,concentration prediction and spectral reconstruction were achieved with the highest accuracy of 100%.Finally,we demonstrated the potential of OC-Hμresonator for SARS-CoV-2 *** findings will promote the wider application of SEIRA technology,while providing new ideas for other enhanced spectroscopy technologies,quantum photonics and studying light–matter interactions.

关键词： Plasmonic nanoantennas light-matter interaction Surface-enhanced infrared absorption Overcoupled Biosensing

Targets capture by distributed active swarms via bio-inspired reinforcement learning

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 210-221页

作者： Kun Xu Yue li jun Sun Shuyuan Du Xinpeng Di Yuguang Yang Bo li Institute of Biomechanics and Medical Engineering Applied Mechanics Laboratory Department of Engineering MechanicsTsinghua University Institute of Nuclear and New Energy Technology Tsinghua University Shanghai Aerospace Control Technology Institute Shanghai Key Laboratory of Aerospace Intelligent Control Technology College of Automation Engineering Nanjing University of Aeronautics and Astronautics

Natural swarms arranged from cells to herds are usually decentralized but display intriguing collective intelligence in coordinating individuals across large scales to efficiently achieve their common goals. Learning from nature may provide new strategies for controlling collective dynamics of synthetic swarms to accomplish specific functions. Here, we present a bioinspired computational framework that steers distributed active swarms to collectively capture and merge targets via reinforcement learning. We exploit collective milling structures of natural herds to cage the targets, and adopt a switching control policy inspired by sperms' chiral dynamics to optimize the trajectories of individuals, through which the active swarms can selforganize to enclose single or multiple distant targets in a dynamical, adaptive and scalable manner. There exists a critical swarm size, beyond which the excessive competition between agents would generate large mechanical forces, leading to capture instability but enabling the transition from short-distance to long-distance merging capture of multiple targets. This work provides physical insights into distributed active swarms and could offer a multilevel, decentralized strategy toward controlling swarm robotics in wide applications such as bio-medical devices, machine immunity, and target clearance.

关键词： swarm intelligence robotics multi-tasks artificial intelligence bionics

Real-world evidence on the efficacy and safety of vonoprazanamoxicillin dual therapy for Helicobacter pylori treatment in elderly patients

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World Journal of Gastroenterology 2025年第1期31卷 68-78页

作者： Wen Gao Jing-Wen li Hui Ye Xue-Zhi Zhang Jian-Xiang liu hong Cheng Department of Gastroenterology Peking University First HospitalBeijing 100034China School of Medicine Tsinghua MedicineTsinghua UniversityBeijing 100034China Department of Traditional Chinese Medicine and Integrative Medicine Peking University First HospitalBeijing 100034China

BACKGROUND A dual therapy regimen containing amoxicillin is a common treatment option for the eradication of Helicobacter pylori(***).While substantial research supports the efficacy and safety of vonoprazan and amoxicillin(VA)dual therapy in the general population,there is still a lack of studies specifically focusing on its safety in elderly *** To evaluate efficacy and safety of VA dual therapy as first-line or rescue treatment for *** in elderly *** As a real-world retrospective study,data were collected from elderly patients aged 60 years and above who accepted VA dual therapy(vonoprazan 20 mg twice daily+amoxicillin 1000 mg thrice daily for 14 days)for *** eradication in the Department of Gastroenterology at Peking University First Hospital between june 2020 and January *** status was evaluated by^(13)C-urease breath test 6 weeks after *** adverse events(AEs)during treatment were *** In total,401 cases were ***-one cases were excluded due to loss to follow-up,lack of re-examination,or unwillingness to take *** total of 380 included cases comprised 250 who received VA dual therapy as first-line treatment and 130 who received VA dual therapy as rescue *** was successfully eradicated in 239 cases(95.6%)in the first-line treatment group and 116 cases(89.2%)in the rescue treatment *** overall incidence of AEs was 9.5%for both ***,9.2%of patients experienced an AE in the first-line treatment group and 10.0%in the rescue treatment *** patients discontinued treatment due to AE,with a discontinuation rate of 1.3%.No serious AE *** The VA dual therapy regimen as a first-line treatment and a rescue therapy was effective and safe for elderly patients aged 60 and older.

关键词： Helicobacter pylori Vonoprazan Amoxicillin Dual therapy Elderly