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Hybrid superconducting photonic-phononic chip for quantum information processing

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Chip 2022年第3期1卷 1-7页

作者： Xin-Biao Xu Wei-Ting Wang lu-yan sun Chang-Ling Zou Key Laboratory of Quantum Information University of Science and Technology of ChinaCASHefeiAnhui 230026China Center for Quantum Information Institute for Interdisciplinary Information SciencesTsinghua UniversityBeijing 100084China CAS Center For Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefeiAnhui 230026China

The integration of qubits with long coherence times and functional quantum devices on a single chip,and thus the realization of an allsolidstate quantum computing chip,is an important goal in current experimental research on quantum information *** various quantum platforms,a series of significant progresses have been made in photonic quantum chips and superconducting quantum chips,while both the number of qubits and the complexity of quantum circuits have been *** these two chip platforms have respective unique advantages and potentials,their shortcomings have been gradually revealed and need to be *** introducing phonon-integrated devices,it is possible to combine all unsuspended phononic,photonic,and superconducting quantum devices organi-cally on the same chip to achieve coherent coupling among ***,we provide a prospect and a short review on the integrated photonic,superconducting,and hybrid quantum chips for quantum information processing.

关键词： Photonic integ rated circuits Quantum infor mation processing Hybrid quantum chip Phononic circuits Superconducting quantum circuits

Simulation of molecular spectroscopy with circuit quantum electrodynamics

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Science Bulletin 2018年第5期63卷 293-299页

作者： Ling Hu Yue-Chi Ma Yuan Xu Wei-Ting Wang Yu-Wei Ma Ke Liu Hai-yan Wang Yi-Pu Song Man-Hong Yung lu-yan sun Center for Quantum Information Institute for Interdisciplinary Information Sciences Tsinghua University Beijing 100084 China institute for Quantum-Science and Engineering and Department of Physics South University of Science and Technology of China Shenzhen 518055 China Shenzhen Key Laboratory of Quantum Science and Engineering Shenzhen 518055 China

Spectroscopy is a crucial laboratory technique for understanding quantum systems through their interactions with the electromagnetic ***,spectroscopy is capable of revealing the physical structure of molecules,leading to the development of the maser—the forerunner of the ***,real-world applications of molecular spectroscopy are mostly confined to equilibrium states,due to computational and technological constraints;a potential breakthrough can be achieved by utilizing the emerging technology of quantum *** we experimentally demonstrate through a toy model,a superconducting quantum simulator capable of generating molecular spectra for both equilibrium and non-equilibrium states,reliably producing the vibronic structure of diatomic ***,our quantum simulator is applicable not only to molecules with a wide range of electronic-vibronic coupling strength,characterized by the Huang-Rhys parameter,but also to molecular spectra not readily accessible under normal laboratory *** results point to a new direction for predicting and understanding molecular spectroscopy,exploiting the power of quantum simulation.

关键词： Molecular spectroscopy Circuit quantum electrodynamics Correlation function Huang-Rhys parameter

Effect of Carbon on DA718 Alloy with P Addition

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Journal of Materials Science & Technology 2003年第6期19卷 616-618页

作者： Na LI, Shouren GUO, Dezhong lu, Wenru sun, yan XU and Zhuangqi HUInstitute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China Inst. of Metal Res. Chinese Acad. of Sci. Shenyang 110016 China

Lower content of carbon can further improve the stress rupture life of p-modified DA 718 alloy up to more than 270%. Meanwhile, the ductility of the alloy decreased a little. More boron atoms dissociate due to decreasing carbon content and interact with phosphorus which brings the longer stress rupture life of the alloy. Less carbon may induce more phosphorus segregating in the grain boundary and result in brittleness.

关键词： DA 718 alloy Carbon Phosphorus

Trichostatin A Extends the Lifespan of Drosophila melanogaster by Elevating hsp22 Expression

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Acta Biochimica et Biophysica Sinica 2004年第9期36卷 618-622页

作者： Dan TAO#, Jun lu#, Hui sun, yan-Mei ZHAO, Zhi-Gen YUAN, Xiao-Xue LI, and Bai-Qu HUANG* Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China Institute of Genetics and Cytology Northeast Normal UniversityChangchun 130024China

The level of acetylation of histones in nucleosomes is related to the longevity of yeast and animals. However, the mechanisms by which acetylation and deacetylation affect longevity remain unclear. In present study, we investigated the influence of histone acetylation modification on the expression of hsp22 gene and the lifespan in Drosophila melanogaster using histone deacetylase (HDAC) inhibitor Trichostatin A (TSA). The results showed that TSA could extend the lifespan of Drosophila melanogaster. Furthermore, TSA significantly promoted the hsp22 gene transcription, and affected the chromatin morphology at the locus of hsp22 gene along the polytene chromosome. Present data implicate that TSA may affect the lifespan of Drosophila through changing the level of histone acetylation and influencing the expression of hsp22 gene that is related to aging.

关键词： histone acetylation histone deacetylase inhibitor Drosophila melanogaster hsp22 lifespan

计及MOSFET关断过程的LLC变换器死区时间选取及计算

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电力自动化设备 2017年第3期37卷 175-183页

作者：吕正颜湘武孙磊樊威华北电力大学新能源电力系统国家重点实验室北京102206 河北农业大学机电工程学院河北保定071001

死区时间的合理选取是LLC变换器MOSFET开关管在宽调节范围内实现零电压开通(ZVS)以降低电磁干扰并提升运行效率的必要条件。现有选取方法因忽略MOSFET关断过程对死区时间的重要影响,选取结果实用性较差。通过理论研究给出了使LLC变换器... 详细信息

死区时间的合理选取是LLC变换器MOSFET开关管在宽调节范围内实现零电压开通(ZVS)以降低电磁干扰并提升运行效率的必要条件。现有选取方法因忽略MOSFET关断过程对死区时间的重要影响,选取结果实用性较差。通过理论研究给出了使LLC变换器在宽调节范围内实现ZVS的死区时间选取原则,参照该原则详细描述并合理简化最恶劣工况下计及MOSFET关断瞬态的LLC变换器工作过程。在此基础上,通过对MOSFET手册中数据的分析运用,精确算得最恶劣工况下LLC变换器实现ZVS所需死区时间的最小值,最终给出LLC变换器在宽调节范围内实现ZVS所需死区时间设定值的计算方法。该方法计算过程简单直观,实验结果亦验证了其正确性和有效性。

关键词：死区时间 LLC变换器最恶劣工况 MOSFET 关断瞬态零电压开通

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装备制造业的自主创新

铸造技术 2006年第9期27卷 1000-1001,1009页

作者：陆燕荪机械工业部北京100000

原机械工业部副部长陆燕荪在中国铸造协会第七届铸造厂长(经理)国际会议上的讲话(节录)为使我国在2020年进入创新型国家行列,必须把增强自主创新能力作为发展科学技术的战略基点,走中国特色的自主创新道路,要把发展自主创新能力作为国... 详细信息

原机械工业部副部长陆燕荪在中国铸造协会第七届铸造厂长(经理)国际会议上的讲话(节录)为使我国在2020年进入创新型国家行列,必须把增强自主创新能力作为发展科学技术的战略基点,走中国特色的自主创新道路,要把发展自主创新能力作为国家战略,贯穿到现代化建设各个方面,激发全民族创新精神,增强国家核心竞争力,为此要把掌握一批事关国家竞争力的装备制造业的核心技术作为近期的首要目标.

关键词：自主创新能力装备制造业中国铸造协会科学技术机械工业部现代化建设核心竞争力国家竞争力

基于金/巯基相互作用的功能分子在磁性高分子复合微球表面可控组装研究

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高分子学报 2018年第8期28卷 1073-1080页

作者：万家勋孙璐艳汪长春聚合物分子工程国家重点实验室复旦大学高分子科学系上海200438

建立了一种基于金纳米粒子与巯基相互作用的在磁性高分子复合微球表面高效组装功能分子的新方法.首先制备了粒径均一的介孔磁性纳米粒子簇(MSP),利用蒸馏沉淀技术在MSP上包覆一层―S―S―键交联的聚甲基丙烯酸壳层(P(MAA-Cy)),并将直径1... 详细信息

建立了一种基于金纳米粒子与巯基相互作用的在磁性高分子复合微球表面高效组装功能分子的新方法.首先制备了粒径均一的介孔磁性纳米粒子簇(MSP),利用蒸馏沉淀技术在MSP上包覆一层―S―S―键交联的聚甲基丙烯酸壳层(P(MAA-Cy)),并将直径10~30 nm的金纳米粒子沉积在MSP@P(MAACy)复合微球表面,从而获得MSP@P(MAA-Cy)-Au NP复合微球.调控HAu Cl4的投料量可以控制金纳米粒子沉积数量和尺寸.利用金粒子和巯基之间的强相互作用,将巯基修饰的荧光分子快速可控组装在MSP@P(MAA-Cy)-Au NP微球上.作为模型示范,实现了一次在MSP@P(MAA-Cy)-Au NP微球上快速固定单种或多种功能分子,为即时、高效、定量在功能微球(靶向药物载体等)上修饰功能分子提供了一种可选择的解决方案.

关键词：磁性纳米粒子簇金纳米粒子复合微球荧光分子即时修饰高效组装

A Novel Model for Describing Rail Weld Irregularities and Predicting Wheel-Rail Forces Using a Machine Learning Approach

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 555-577页

作者： Linlin sun Zihui Wang Shukun Cui Ziquan yan Weiping Hu Qingchun Meng State Key Laboratory of High-Speed Railway Track System China Academy of Railway Sciences Corporation LimitedBeijing100081China Railway Engineering Research Institute China Academy of Railway Sciences Corporation LimitedBeijing100081China School of Aeronautic Science and Engineering Beihang UniversityBeijing100191China

Rail weld irregularities are one of the primary excitation sources for vehicle-track interaction dynamics in modern high-speed *** can cause significant wheel-rail dynamic interactions,leading to wheel-rail noise,component damage,and *** researchers have employed the vehicle-track interaction dynamic model to study the dynamic interactions between wheel and rail induced by rail weld geometry ***,the cosine wave model used to simulate rail weld irregularities mainly focuses on the maximum value and neglects the geometric *** this study,novel theoretical models were developed for three categories of rail weld irregularities,based on measurements of the high-speed railway from Beijing to *** vertical dynamic forces in the time and frequency domains were compared under different running *** forces generated by the rail weld irregularities that were measured and modeled,respectively,were compared to validate the accuracy of the proposed ***,based on the numerical study,the impact force due to rail weld irrregularity is modeled using an Artificial Neural Network(ANN),and the optimum combination of parameters for this model is *** results showed that the proposed model provided a more accurate wheel/rail dynamic evaluation caused by rail weld irregularities than that established in the *** ANN model used in this paper can effectively predict the impact force due to rail weld irrregularity while reducing the computation time.

关键词： Rail weld irregularity high-speed railway vehicle-track coupled dynamics wheel/rail dynamic vertical force artificial neural networks

Non-coding RNAs in acute ischemic stroke:from brain to periphery

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Neural Regeneration Research 2025年第1期20卷 116-129页

作者： Shuo Li Zhaohan Xu Shiyao Zhang Huiling sun Xiaodan Qin Lin Zhu Teng Jiang Junshan Zhou Fuling yan Qiwen Deng Department of Neurology Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina Department of Neurology Zhongda HospitalSchool of MedicineSoutheast UniversityNanjingJiangsu ProvinceChina General Clinical Research Center Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina

Acute ischemic stroke is a clinical emergency and a condition with high morbidity,mortality,and *** predictive,diagnostic,and prognostic biomarkers and effective therapeutic targets for acute ischemic stroke remain *** innovations in high-throughput gene sequencing analysis,many aberrantly expressed non-coding RNAs(ncRNAs)in the brain and peripheral blood after acute ischemic stroke have been found in clinical samples and experimental *** expressed ncRNAs in the post-stroke brain were demonstrated to play vital roles in pathological processes,leading to neuroprotection or deterioration,thus ncRNAs can serve as therapeutic targets in acute ischemic ***,distinctly expressed ncRNAs in the peripheral blood can be used as biomarkers for acute ischemic stroke prediction,diagnosis,and *** particular,ncRNAs in peripheral immune cells were recently shown to be involved in the peripheral and brain immune response after acute ischemic *** this review,we consolidate the latest progress of research into the roles of ncRNAs(microRNAs,long ncRNAs,and circular RNAs)in the pathological processes of acute ischemic stroke–induced brain damage,as well as the potential of these ncRNAs to act as biomarkers for acute ischemic stroke prediction,diagnosis,and *** from this review will provide novel ideas for the clinical application of ncRNAs in acute ischemic stroke.

关键词： acute ischemic stroke apoptosis blood–brain barrier damage circular RNAs excitatory toxicity long non-coding RNAs microRNAs neuroinflammation non-coding RNAs oxidative stress