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Up-conversion detection of mid-infrared light carrying orbital angular momentum

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Chinese Physics B 2022年第10期31卷 131-136页

作者： Zheng Ge Chen Yang yin-hai li Yan li Shi-Kai liu Su-Jian Niu Zhi-Yuan Zhou Bao-Sen Shi CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China

Frequency up-conversion is an effective method of mid-infrared(MIR) detection by converting long-wavelength photons to the visible domain, where efficient detectors are readily available. Here, we generate MIR light carrying orbital angular momentum(OAM) from a difference frequency generation process and perform up-conversion on it via sum frequency conversion in a bulk quasi-phase-matching crystal. The maximum quantum conversion efficiencies from MIR to visible are 34.0%, 10.4%, and 3.5% for light with topological charges of 0, 1, and 2, respectively, achieved by utilizing an optimized strong pump light. We also verify the OAM conservation with a specially designed interferometer, and the results agree well with the numerical simulations. Our study opens up the possibilities for generating, manipulating, and detecting MIR light that carries OAM, and will have great potential for optical communications and remote sensing in the MIR regime.

关键词： nonlinear optics frequency up-conversion mid-infrared detection

Quantum twisted double-slits experiments:confirming wavefunctions'physical reality

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Science Bulletin 2017年第17期62卷 1185-1192页

作者： Zhi-Yuan Zhou Zhi-Han Zhu Shi-Long liu yin-hai li Shuai Shi Dong-Sheng Ding li-Xiang Chen Wei Gao Guang-Can Guo Bao-Sen Shi Wang Da-Heng Collaborative Innovation Center for Science of Quantum Manipulation&Control Heilongjiang Province&Harbin University of Science and TechnologyHarbin 150080China CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China Department of Physics Harbin University of Science and TechnologyHarbin 150080China Department of Physics and Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices Xiamen UniversityXiamen 361005China

Are quantum states real? This most fundamental question in quantum mechanics has not yet been satisfactorily resolved, although its realistic interpretation seems to have been rejected by various delayedchoice experiments. Here, to address this long-standing issue, we present a quantum twisted double-slit experiment. By exploiting the subluminal feature of twisted photons, the real nature of a photon during its time in flight is revealed for the first time. We found that photons' arrival times were inconsistent with the states obtained in measurements but agreed with the states during propagation. Our results demonstrate that wavefunctions describe the realistic existence and evolution of quantum entities rather than a pure mathematical abstraction providing a probability list of measurement outcomes. This finding clarifies the long-held misunderstanding of the role of wavefunctions and their collapse in the evolution of quantum entities.

关键词： Orbital angular momentum Subluminal group velocity Double slitsWave functions Physical reality

Exosomes derived from stem cells as an emerging therapeutic strategy for intervertebral disc degeneration

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World Journal of Stem Cells 2020年第8期12卷 803-813页

作者： Zhi-Lei Hu hai-yin li Xian Chang Yue-Yang li Chen-Hao liu Xiao-Xin Gao Yu Zhai Yu-Xuan Chen Chang-Qing li Department of Orthopedics Xinqiao HospitalArmy Military Medical UniversityChongqing 400037China Center of Traumatic Orthopedics People's Liberation Army 990 HospitalXinyang 46400Henan ProvinceChina

Intervertebral disc(IVD)degenerative diseases are a common problem in the world,and they cause substantial social and economic burdens for *** current methods for treating IVD degenerative diseases mainly include surgery and conservative treatment,which cannot fundamentally restore the normal structure of the *** continuous research on the mechanism of degeneration and the development of regenerative medicine,rapid progress has been made in the field of regenerative medicine regarding the use of stem cell-derived exosomes,which are active biological substances used in intercellular communication,because they show a strong effect in promoting tissue *** study of exosomes in the field of IVD degeneration has just begun,and many surprising achievements have been *** paper mainly reviews the biological characteristics of exosomes and highlights the current status of exosomes in the field of IVD degeneration,as well as future developments regarding exosomes.

关键词： Exosomes Intervertebral disc degeneration Stem cells MicroRNA Regenerative medicine Biological characteristic

CNKSR2 interactome analysis indicates its association with the centrosome/microtubule system

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Neural Regeneration Research 2025年第8期20卷 2420-2432页

作者： lin yin Yalan Xu Jie Mu Yu Leng Lei Ma Yu Zheng Ruizhi li yin Wang Peifeng li hai Zhu Dong Wang Jing li Institute for Translational Medicine The Affiliated Hospital of Qingdao UniversityMedical CollegeQingdao UniversityQingdaoShandong ProvinceChina School of Basic Medicine Qingdao UniversityQingdaoShandong ProvinceChina College of life Sciences and School of PharmacyMedical CollegeQingdao UniversityQingdaoShandong ProvinceChina Department of Urology Qingdao Municipal Hospital Affiliated to Qingdao UniversityQingdaoShandong ProvinceChina

The protein connector enhancer of kinase suppressor of Ras 2(CNKSR2),present in both the postsynaptic density and cytoplasm of neurons,is a scaffolding protein with several protein-binding *** of the CNKSR2 gene have been implicated in neurodevelopmental disorders,particularly intellectual disability,although the precise mechanism involved has not yet been fully *** has demonstrated that CNKSR2 plays a role in facilitating the localization of postsynaptic density protein complexes to the membrane,thereby influencing synaptic signaling and the morphogenesis of dendritic ***,the function of CNKSR2 in the cytoplasm remains to be *** this study,we used immunoprecipitation and high-resolution liquid chromatography-mass spectrometry to identify the interactors of *** a combination of bioinformatic analysis and cytological experiments,we found that the CNKSR2 interactors were significantly enriched in the proteome of the *** also showed that CNKSR2 interacted with the microtubule protein DYNC1H1 and with the centrosome marker *** colocalization analysis confirmed the centrosomal localization of *** we downregulated CNKSR2 expression in mouse neuroblastoma cells(Neuro 2A),we observed significant changes in the expression of numerous centrosomal *** manipulation also affected centrosome-related functions,including cell size and shape,cell proliferation,and ***,we found that CNKSR2 interactors were highly enriched in de novo variants associated with intellectual disability and autism spectrum *** findings establish a connection between CNKSR2 and the centrosome,and offer new insights into the underlying mechanisms of neurodevelopmental disorders.

关键词： autism spectrum disorder centrosome CNKSR2 intellectual disability interactome mass spectrometry microtubule neurodevelopmental disease protein complexes protein-protein interactions

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体育社团参与与现代社会资本培育

南通大学学报（社会科学版） 2015年第4期31卷 129-134页

作者：尹海立山东大学哲学与社会发展学院山东济南250100 鲁东大学体育学院山东烟台264025

社团参与作为社会资本测量中的重要指标,也是培育提升现代社会资本的有力手段。通过对山东省烟台市544位城市居民进行的问卷调查,考察了参加体育社团活动对于现代社会资本培育的影响。研究发现,体育社团活动会促使城市居民社会资本的性... 详细信息

社团参与作为社会资本测量中的重要指标,也是培育提升现代社会资本的有力手段。通过对山东省烟台市544位城市居民进行的问卷调查,考察了参加体育社团活动对于现代社会资本培育的影响。研究发现,体育社团活动会促使城市居民社会资本的性质由传统向现代转变,对现代社会资本的培育起到了积极作用。具体而言,参与体育社团活动有助于增强城市居民的公共参与意识,提高城市居民的普遍信任程度,拓展城市居民的信任网络结构以及运用网络资源的能力。但是参加体育社团不能从根本上改变中国人人际关系中的差序格局。

关键词：体育社团社会资本公共参与普遍信任信任网络

Effect of order–disorder transition on thermodynamic and electronic properties of σ and χ phases in W–Re alloy: the first-principles calculation

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Tungsten 2025年第1期7卷 195-213页

作者： Zhi-Peng Zhu Dian Jia William Yi Wang Jun-Lei yin Xing-Yu Gao Shu-Feng Yang hai-Feng Song Jin-Shan li State Key Laboratory of Solidification Processing Northwestern Polytechnical University Laboratory of Computational Physics Institute of Applied Physics and Computational Mathematics School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

The Tungsten-Rhenium(W-Re) alloys,celebrated for their high melting point,strength at elevated temperatures,electrical resistivity,and radiation resistance,have been widely utilized in high-temperature components,aerospace,electronics,and nuclear *** constituents of the topologically close-packed(TCP) phases,the sigma phase(σ) and chi phase(χ) formed within W-Re alloys wield considerable influence on the mechanical properties and the stability of the *** calculations were utilized in the present work to explore the structural,thermodynamic,and electronic properties of both ordered and disordered configurations within the σ and χ phases,culminating in a systematic elucidation of the higher phase stability exhibited by the ordered *** is found that the bulk modulus of these two phases is directly proportional to the concentration of Re in the alloy,while the equilibrium volume is inversely *** thermodynamic parameters of the σ and χ phases are calculated via the mean-field potential *** similar trends observed in the isobaric heat capacity,enthalpy increment,and entropy change curves for these two phases suggest they possess comparable thermodynamic *** is noteworthy that the contribution of ionic vibrations predominantly affects the isobaric heat capacity,while the contribution of thermal electronic excitations increases linearly with *** the structure and thermodynamic properties of TCP phases in W-Re alloys at low temperatures has profound significance for optimizing material performance,microstructures features,establishing theoretical foundations,and predicting material behavior.

关键词： First-principles calculations Phase stability TCP phases Thermodynamic properties W–Re alloy

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我国建立职业体育联盟的可行性分析

上海体育学院学报 2005年第4期29卷 45-48,64页

作者：尹海立烟台师范学院体育学院山东烟台214000

阐述西方国家职业体育联盟的主要经验及运行特征。在我国体育职业化进程中,职业体育俱乐部提出了成立职业体育联盟的利益诉求。从我国竞技体育发展趋势及有关法规的要求看,在现阶段尚不具有建立职业体育联盟的条件。在未来体育市场比较... 详细信息

阐述西方国家职业体育联盟的主要经验及运行特征。在我国体育职业化进程中,职业体育俱乐部提出了成立职业体育联盟的利益诉求。从我国竞技体育发展趋势及有关法规的要求看,在现阶段尚不具有建立职业体育联盟的条件。在未来体育市场比较健全、法律环境比较完善、社会体育组织比较发达的情况下,我国职业体育联盟可能应运而生。

关键词：职业体育体育联盟职业体育俱乐部竞技体育市场

从技术运用视角思考武术短兵运动的发展对策——首届山东省武术短兵表演赛剖析

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北京体育大学学报 2006年第4期29卷 573-575页

作者：尹海立烟台师范学院体育学院山东烟台264025

采用文献资料和数据统计等研究方法,对山东首届武术短兵表演赛的技术运用状况进行研究。结果表明:技术动作单一化严重、缺乏项目特色;动作技术含量不高、规范性不强;攻守体系严重失衡、专业化程度不高等是阻碍当前武术短兵运动发展的最... 详细信息

采用文献资料和数据统计等研究方法,对山东首届武术短兵表演赛的技术运用状况进行研究。结果表明:技术动作单一化严重、缺乏项目特色;动作技术含量不高、规范性不强;攻守体系严重失衡、专业化程度不高等是阻碍当前武术短兵运动发展的最主要问题。官方重视程度不够、缺乏激励政策和项目自身缺乏吸引力,是造成短兵运动不能走向竞技舞台的主要原因。并提出相关发展对策。

关键词：武术短兵技术运用发展对策

Research on Stock Price Prediction Method Based on the GAN-LSTM-Attention Model

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Computers, Materials & Continua 2025年第1期82卷 609-625页

作者： Peng li Yanrui Wei lili yin College of Computer Science and Technology Harbin University of Science and TechnologyHarbin150006China

Stock price prediction is a typical complex time series prediction problem characterized by dynamics,nonlinearity,and *** paper introduces a generative adversarial network model that incorporates an attention mechanism(GAN-LSTM-Attention)to improve the accuracy of stock price ***,the generator of this model combines the Long and Short-Term Memory Network(LSTM),the Attention Mechanism and,the Fully-Connected Layer,focusing on generating the predicted stock *** discriminator combines the Convolutional Neural Network(CNN)and the Fully-Connected Layer to discriminate between real stock prices and generated stock ***,to evaluate the practical application ability and generalization ability of the GAN-LSTM-Attention model,four representative stocks in the United States of America(USA)stock market,namely,Standard&Poor’s 500 Index stock,Apple Incorporatedstock,AdvancedMicroDevices Incorporatedstock,and Google Incorporated stock were selected for prediction experiments,and the prediction performance was comprehensively evaluated by using the three evaluation metrics,namely,mean absolute error(MAE),root mean square error(RMSE),and coefficient of determination(R2).Finally,the specific effects of the attention mechanism,convolutional layer,and fully-connected layer on the prediction performance of the model are systematically analyzed through ablation *** results of experiment show that the GAN-LSTM-Attention model exhibits excellent performance and robustness in stock price prediction.

关键词： Stock price prediction generative adversarial network attention mechanism time-series prediction