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An Algorithm of Deformation Image Correction Based on Spatial Mapping

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Chinese Journal of Electronics 2024年

作者： xiangyu DENG Aijia ZHANG Jinhong ye College of Physics and Electronic Engineering Northwest Normal University

The original image undergoes geometric deformation in terms of position, shape, size, and orientation due to the shooting angle or capturing process during image acquisition. This brings about inconveniences and significant challenges in various image processing fields such as image fusion, denoising, recognition, and segmentation. To enhance the processing ability and recognition accuracy of deformation images, an adaptive image deformity correction algorithm is proposed for quadrilaterals and triangles. The deformation image undergoes preprocessing, and the contour of the image edge is extracted. Discrete points on the image edge are identified to accurately locate the edges. The deformation of the quadrilateral or triangle is transformed into a standard rectangular or equilateral triangular image using the proposed three-dimensional homography transformation algorithm. This effectively completes the conversion from an irregular image to a regular image in an adaptive manner. Numerous experiments demonstrate that the proposed algorithm surpasses traditional methods like Hough transform and Radon transform. It improves the effectiveness of correcting deformation in images, effectively addresses the issue of geometric deformation,and provides a new technical method for processing deformation images.

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Associations of socioeconomic status with infectious diseases mediated by lifestyle, environmental pollution and chronic comorbidities: a comprehensive evaluation based on UK Biobank

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Infectious Diseases of Poverty 2023年第1期12卷 1-23页

作者： xiangyu ye Yidi Wang Yixin Zou Junlan Tu Weiming Tang Rongbin Yu Sheng Yang Peng Huang Department of Epidemiology Center for Global HealthSchool of Public HealthNanjing Medical UniversityNanjingChina Institute of Global Health and Infectious Diseases University of North CarolinaChapel HillCAUSA Department of Biostatistics Center for Global HealthSchool of Public HealthNanjing Medical UniversityNanjingChina

Background Socioeconomic status(SES)inequity was recognized as a driver of some certain infectious diseases.However,few studies evaluated the association between SES and the burden of overall infections,and even fewer identified preventable mediators.This study aimed to assess the association between SES and overall infectious diseases burden,and the potential roles of factors including lifestyle,environmental pollution,chronic disease history.Methods We included 401,009 participants from the UK Biobank(UKB)and defined the infection status for each participant according to their diagnosis records.Latent class analysis(LCA)was used to define SES for each participant.We further defined healthy lifestyle score,environment pollution score(EPS)and four types of chronic comorbidities.We used multivariate logistic regression to test the associations between the four above covariates and infectious diseases.Then,we performed the mediation and interaction analysis to explain the relationships between SES and other variables on infectious diseases.Finally,we employed seven types of sensitivity analyses,including considering the Townsend deprivation index as an area level SES variable,repeating our main analysis for some individual or composite factors and in some subgroups,as well as in an external data from the US National Health and Nutrition Examination Survey,to verify the main results.Results In UKB,60,771(15.2%)participants were diagnosed with infectious diseases during follow-up.Lower SES[odds ratio(OR)=1.5570]were associated with higher risk of overall infections.Lifestyle score mediated 2.9%of effects from SES,which ranged from 2.9 to 4.0%in different infection subtypes,while cardiovascular disease(CVD)mediated a proportion of 6.2%with a range from 2.1 to 6.8%.In addition,SES showed significant negative interaction with lifestyle score(OR=0.8650)and a history of cancer(OR=0.9096),while a significant synergy interaction was observed between SES and EPS(OR=1.0024).In subgroup analysis,we found that males and African

关键词： Socioeconomic status Infectious diseases Healthy lifestyle Environmental pollution Chronic comorbidities

New constraints on exotic spin-dependent interactions with an ensemble-NV-diamond magnetometer

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National Science Review 2023年第7期10卷 107-113页

作者： Hang Liang Man Jiao Yue Huang Pei Yu xiangyu ye Ya Wang Yijin Xie Yi-Fu Cai Xing Rong Jiangfeng Du CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences University of Science and Technology of China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of China Hefei National Laboratory University of Science and Technology of China CAS Key Laboratory for Research in Galaxies and Cosmology Department of Astronomy University of Science and Technology of China School of Astronomy and Space Science University of Science and Technology of China

Laboratory search of exotic interactions is crucial for exploring physics beyond the standard model.We report new experimental constraints on two exotic spin-dependent interactions at the micrometer scale based on ensembles of nitrogen-vacancy(NV) centers in diamond.A thin layer of NV ele ctronic spin ensembles is synthesized as the solid-state spin quantum sensor,and a lead sphere is taken as the interacting nucleon source.Our result establishes new bounds for two types of exotic spin interactions at the micrometer scale.For an exotic parity-odd spin-and velocity-dependent interaction,improved bounds are set within the force range from 5 to 500 μm.The upper limit of the corresponding coupling constant gAegVNat 330 μm is more than 1000-fold more stringent than the previous constraint.For the P,T-violating scalar-pseudoscalar nucleon-electron interaction,improved constraints are established within the force range from 6 to 45 μm.The limit of the corresponding coupling constant gSNgPeis improved by more than one order of magnitude at 30μm.This work demonstrates that a solid-state NV ensemble can be a powerful platform for probing exotic spin-dependent interactions.

关键词： quantum sensing exotic interaction diamond nitrogen-vacancy center beyond the standard model

Sub-nanotesla sensitivity at the nanoscale with a single spin

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National Science Review 2023年第12期10卷 164-173页

作者： Zhiyuan Zhao xiangyu ye Shaoyi Xu Pei Yu Zhiping Yang Xi Kong Ya Wang Tianyu Xie Fazhan Shi Jiangfeng Du CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences University of Science and Technology of China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of China National Laboratory of Solid State Microstructures and Department of Physics Nanjing University Hefei National Laboratory University of Science and Technology of China School of Biomedical Engineering and Suzhou Institute for Advanced Research University of Science and Technology of China

High-sensitivity detection of the microscopic magnetic field is essential in many fields.Good sensitivity and high spatial resolution are mutually contradictory in measurement,which is quantified by the energy resolution limit.Here we report that a sensitivity of 0.5 nT/(Hz)(1/2) at the nanoscale is achieved experimentally by using nitrogen-vacancy defects in diamond with depths of tens of nanometers.The achieved sensitivity is substantially enhanced by integrating with multiple quantum techniques,including real-time-feedback initialization,dynamical decoupling with shaped pulses and repetitive readout via quantum logic.Our magnetic sensors will shed new light on searching new physics beyond the standard model,investigating microscopic magnetic phenomena in condensed matters,and detection of life activities at the sub-cellular scale.

关键词： energy resolution limit magnetic sensitivity nanoscale quantum sensing spatial resolution

Experimental Investigation of Lee–Yang Criticality Using Non-Hermitian Quantum System

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Chinese Physics Letters 2024年第5期41卷 1-11页

作者：蓝子桁刘文权伍旸叶翔宇杨哲森段昌奎王亚荣星 CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences 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 Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China School of Science Beijing University of Posts and TelecommunicationsBeijing 100876China Kavli Institute for Theoretical Sciences Chinese Academy of SciencesBeijing 100190China

Lee–Yang theory clearly demonstrates where the phase transition of many-body systems occurs and the asymptotic behavior near the phase transition using the partition function under complex parameters. The complex parameters make the direct investigation of Lee–Yang theory in practical systems challenging. Here we construct a non-Hermitian quantum system that can correspond to the one-dimensional Ising model with imaginary parameters through the equality of partition functions. By adjusting the non-Hermitian parameter,we successfully obtain the partition function under different imaginary magnetic fields and observe the Lee–Yang zeros. We also observe the critical behavior of free energy in vicinity of Lee–Yang zero that is consistent with theoretical prediction. Our work provides a protocol to study Lee–Yang zeros of the one-dimensional Ising model using a single-qubit non-Hermitian system.

关键词： functions partition imaginary

Reduced clinical severity during 2022 Shanghai Spring epidemic of SARS-CoV-2 omicron BA.2 variant infection——an integrated account of virus pathogenicity and vaccination effectiveness

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National Science Review 2024年第4期11卷 24-27页

作者： Xingyue Wu Yao Chen Kangli Cao Yao Shen Xueling Wu Yilin Yang Zhongshu Kuang Qingrun Li Zhenzhen Lu Yichen Jia Mian Shao Guorong Gu Xiangwei Wang ye Yao Ying Wang Shaodie Chen Zhigao Yu Wei Wei Longfei Ding Lulu Lan Tianwen Gu xiangyu Long Jian Sun Lingyu Xing Jiayuan Shen Yi Han Yue Luo Sucheng Mu Mengna Lin Xiaoyan Zhang Rong Zeng Jianqing Xu Guoping Zhao Lihong Huang Zhenju Song Department of Emergency Medicine Clinical Center for Bio-Therapy Department of Biostatistics and Department of UrologyShanghai Key Laboratory of Lung Inflammation and Injury Zhongshan Hospital Fudan University Department of Respiratory and Critical Care Medicine Shanghai Pudong Hospital Fudan University Department of Pulmonology Renji Hospital Shanghai Jiao Tong University School of Medicine Key Laboratory of Systems Biology Center for Excellence in Molecular Cell Science Shanghai Institute of Biochemistry and Cell Biology Chinese Academy of Sciences Shanghai Public Health Clinical Center Fudan University Department of Biostatistics School of Public Health Key Laboratory of Public Health Safety of Ministry of Education and Shanghai Institute of Infectious Disease and Biosecurity School of Public Health Fudan University Shanghai Institute of Immunology Department of Immunology and Microbiology Shanghai Institute of Virology Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of EducationSchool of Medicine Shanghai Jiao Tong University State Key Laboratory of Genetic Engineering Fudan Microbiome CenterSchool of Life Sciences Fudan University Bio-Med Big Data Center Shanghai Institute of Nutrition and Health Chinese Academy of Sciences

The emergence of SARS-Co V-2 variant of concern omicron BA.2 led to high infection incidence rates as well as reduced severity of COVID-19 during the Shanghai Spring epidemic of 2022 [1]. We assessed the role of viral pathogenicity and the effectiveness of inactivated vaccines in a retrospective observational study including 10 258 confirmed COVID-19cases identified between April and June of 2022, from four COVID-19 designated hospitals located in two areas of Shanghai, namely the West Bund and the East Bund, where the populations’ demographic characteristics varied significantly (Table S1, Fig. S1).

关键词： REPLICATION

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漫谈纺织检测机构青年人成长的思考与体会

中国纤检 2024年第3期 26-29页

作者：叶翔宇浙江省轻工业品质量检验研究院浙江杭州310018

笔者在纺织检测机构工作已有近10年时间,一直从事科研及科研管理工作,从个人的成长经历感受出发,本文从“科研方向怎么凝、科研工作怎么干、科研团队怎么建、科研成效怎么显”等四个方面,分享笔者对于进入纺织检测行业的青年人成长的思... 详细信息

笔者在纺织检测机构工作已有近10年时间,一直从事科研及科研管理工作,从个人的成长经历感受出发,本文从“科研方向怎么凝、科研工作怎么干、科研团队怎么建、科研成效怎么显”等四个方面,分享笔者对于进入纺织检测行业的青年人成长的思考和体会,以期让检测机构中的青年科技人员能更好地实现个人职业发展规划。

关键词：检测机构青年科技人员科研个人标签

伪单调变分不等式的一种大步长自适应次梯度外梯度投影算法

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内江师范学院学报 2024年第6期39卷 13-21页

作者：汪香玉叶明露西华师范大学数学与信息学院四川南充637002

2020年Pham Ky Anh等人在Hilbert空间中提出了一种求解映射伪单调且Lipschitz连续的自适应投影算法(简记为PDNA).该算法无需知道映射的Lipschitz系数,且具有强收敛的结果.注意到算法的步长与其收敛速度密切相关,通常大步长的算法具有更... 详细信息

2020年Pham Ky Anh等人在Hilbert空间中提出了一种求解映射伪单调且Lipschitz连续的自适应投影算法(简记为PDNA).该算法无需知道映射的Lipschitz系数,且具有强收敛的结果.注意到算法的步长与其收敛速度密切相关,通常大步长的算法具有更好的收敛速度.Liu和Yang提出了一种求解拟单调变分不等式的自适应算法(简记为LYA),LYA的步长比PDNA中的步长长.本文提出了一种自适应的求解映射伪单调且Lipschitz连续的次梯度外梯度投影算法.新算法的步长比LYA长,且可以退化为LYA中的步长.在与PDNA相同的假设条件下证明了新算法的强收敛性.数值实验表明新算法有更好的数值实验结果.

关键词：变分不等式自适应投影算法伪单调 Lipschitz连续半空间

基于miR-665/DRAM1信号介导的自噬探讨补阳还五汤延缓血管衰老的作用

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南京中医药大学学报 2024年第4期40卷 369-378页

作者：叶才博陈祥宇杜杰勇杨玉彬舒尊鹏张莉广东药科大学附属第一医院广东广州510080 广东药科大学中药学院广东广州510006 北京师范大学文理学院广东珠海519085

目的研究补阳还五汤对血管衰老的延缓作用,探讨其机制是否与microRNA-665(miR-665)/DNA损伤调节自噬调控因子1(DNA damage-regulated autophagy modulator 1,DRAM1)信号介导的自噬有关。方法将自然衰老雄性SD大鼠随机分为衰老组,补阳还... 详细信息

目的研究补阳还五汤对血管衰老的延缓作用,探讨其机制是否与microRNA-665(miR-665)/DNA损伤调节自噬调控因子1(DNA damage-regulated autophagy modulator 1,DRAM1)信号介导的自噬有关。方法将自然衰老雄性SD大鼠随机分为衰老组,补阳还五汤低、中、高(9.25、18.5、37.0 g·kg^(-1))剂量组和白藜芦醇组(80 mg·kg^(-1)),同时设立年轻组。分离胸主动脉,ELISA法测定血管组织衰老相关β-半乳糖苷酶(Senescence associatedβ-galactosidase,SA-β-Gal)活性和晚期糖基化终末产物(Advanced glycation end products,AGEs)水平;HE、Masson和EVG染色观察血管组织形态结构;qPCR检测血管组织miR-665表达;生物信息学分析和双荧光素酶报告基因实验验证miR-665与DRAM1靶向关系;透射电镜观察血管内自噬小体;Western blot法检测血管组织p16、DRAM1蛋白及自噬相关蛋白LC3、Beclin1和p62的表达;免疫组织化学法检测血管组织DRAM1的蛋白表达。结果与年轻组相比,衰老组大鼠血管中SA-β-Gal活性、AGEs水平和p16蛋白表达增加(P<0.01);血管组织排列紊乱,中膜增厚,胶原纤维增加,弹力纤维出现断裂、紊乱;miR-665基因表达上调(P<0.01);自噬小体数量减少,Beclin1和LC3Ⅱ/Ⅰ蛋白表达降低(P<0.01),p62蛋白表达升高(P<0.01);DRAM1蛋白表达降低(P<0.01)。与衰老组相比,补阳还五汤和白藜芦醇干预能够降低衰老大鼠血管中SA-β-Gal活性(P<0.01)、AGEs水平和p16蛋白表达(P<0.05,P<0.01);改善血管形态和弹力纤维结构,降低血管组织胶原纤维含量。高剂量补阳还五汤明显下调miR-665基因表达(P<0.01),增加血管内自噬小体数量;不同剂量补阳还五汤明显上调Beclin1蛋白表达(P<0.05,P<0.01),中剂量和高剂量补阳还五汤显著上调LC3Ⅱ/Ⅰ蛋白表达(P<0.01),下调p62蛋白表达(P<0.01);高剂量补阳还五汤明显上调DRAM1蛋白表达(P<0.05)。生物信息学分析显示,miR-665与DRAM1基因序列存在特异性互补结合位点,双荧光素酶报告实验证实miR-665靶向DRAM1基因并负调控DRAM1蛋白表达。结论补阳还五汤可能通过靶向抑制miR-665促进DRAM1蛋白表达,进而促进血管自噬,延缓血管衰老。

关键词：补阳还五汤 miR-665 DRAM1 自噬转录后调控血管衰老