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View factors estimation from street view imagery and its correlation with intra-urban thermal variation 认领 引用
1
作者 Jiahui Chen Liyu Tang +2 位作者 Simin Liu Xueman Zuo Junqian Cao 《Geography and Sustainability》 CSCD 2026年第3期150-163,共14页
High temperatures negatively impact thermal comfort and public health.Understanding the relationship between urban morphology and thermal variation is crucial for mitigating excessive heat.In this study,we propose a f... High temperatures negatively impact thermal comfort and public health.Understanding the relationship between urban morphology and thermal variation is crucial for mitigating excessive heat.In this study,we propose a framework that uses the sky view factor(SVF),building view factor(BVF),and green view factor(GVF)to represent street-level spatial morphology,computed from Baidu street view images using semantic segmentation and fisheye transformation.The framework also integrates local climate zones(LCZs)classification with summer Landsat thermal data to explore the relationships between SVF,BVF,GVF,and intra-urban thermal variation.An empirical study is conducted in the core built-up area of Fuzhou.Key findings include:(1)Strong urban thermal intensity is characterized by high openness(SVFmean=0.60)and low vegetation(GVFmean=0.15).(2)In general,SVF(r=0.27)is positively associated with street thermal intensity,whereas BVF(r=-0.15)and GVF(r=-0.21)exhibit negative correlations,based on the entire study area.(3)Within LCZ classes(e.g.,LCZs 1-5),SVF(54.57%of the grids)is mostly positively correlated with temperature difference,while GVF(61.30%of the grids)is predominantly negatively correlated with temperature difference.(4)BVF shows the greatest uncertainty in its relationship with thermal variation,as it effectively quantifies exposure to heat-trapping building surfaces that dominate the local energy balance.The above findings imply that there is spatial heterogeneity in the relationship between view factors and intra-urban thermal variation.These results aid in developing street renewal strategies for urban heat mitigation. 展开更多
关键词 View factors Urban thermal environment Street view images(SVIs) Semantic segmentation Local climate zones(LCZs)
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Calculation of Viewing and Solar Geometry Angles for the Fengyun-4B Geostationary Satellite 认领 引用
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作者 Dazhi YANG Yuhang MA +2 位作者 Yun CAO Lei YANG Hai ZHANG 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2026年第4期736-743,共8页
The calculation of viewing and solar geometry angles is a critical first step in retrieving atmospheric and surface variables from geostationary satellite observations.Whereas the viewing angles for geostationary sate... The calculation of viewing and solar geometry angles is a critical first step in retrieving atmospheric and surface variables from geostationary satellite observations.Whereas the viewing angles for geostationary satellites are not timevarying,a primary source of inaccuracy in solar positioning is the use of a single timestamp.Since pixel scanning times can differ significantly across the field-of-view disk(e.g.,by approximately 13 min for Fengyun-4B),this practice leads to errors of up to±2°in solar zenith angle,which translates to±50 W m−2 in extraterrestrial irradiance;the errors in solar azimuth angle can exceed±100°.Beyond scanning time,this work also quantifies the impact of other inputs—including altitude,surface pressure,air temperature,difference between Terrestrial Time and Universal Time,and atmospheric refraction—on the resulting angles.A comparison of our precise calculations with the official National Satellite Meteorological Center L1_GEO product shows an accuracy within 0.1°,confirming its utility for most retrieval tasks.To facilitate higher precision when required,this work releases the corresponding satellite and solar positioning codes in both R and Python. 展开更多
关键词 Fengyun-4B viewing and solar geometry solar position algorithm geostationary satellite code availability
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Power Doppler-guided cross-modal fusion for augmented-view photoacoustic tomography 认领 引用
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作者 Zheng Qu Xuanhao Zhang +3 位作者 Bin Ouyang Cong Mai Xu Tang Lidai Wang 《Advanced Photonics Nexus》 CSCD 2026年第3期222-237,共16页
Photoacoustic computed tomography(PACT)integrates optical excitation with ultrasound detection to deliver high-resolution imaging in deep tissues.A persistent limitation is the restricted angular coverage in linear ar... Photoacoustic computed tomography(PACT)integrates optical excitation with ultrasound detection to deliver high-resolution imaging in deep tissues.A persistent limitation is the restricted angular coverage in linear array clinical systems,which results in image loss of vascular detail.Deep learning approaches have been investigated,yet models trained only on PACT data often fail to reconstruct vessels that are poorly represented due to incomplete angular sampling and low signal-to-noise ratio.A Doppler-enhanced photoacoustic network(DEPANet)is introduced that fuses co-registered ultrasound power Doppler with multiwavelength PACT to generate enhanced structural and functional images.Ultrasound power Doppler,less sensitive to the limited-view problem,is acquired interleaved and spatially co-registered with PACT without additional hardware modifications.Validation is conducted in simulations,phantoms,small animals,and a human feasibility study.In phantom experiments,DEPANet expands the effective angular coverage more than10-fold.In rats,DEPANet reconstructs obliquely oriented vessels,increases contrast-to-noise ratio by over7 dB,and stabilizes hemoglobin oxygenation estimates.In human anterior interosseous artery and superior thyroid vasculature imaging,DEPANet recovers vessel morphology and provides physiologically consistent blood oxygen saturation maps.These findings demonstrate that DEPANet enables high-quality vascular and functional imaging using standard linear-array PACT systems. 展开更多
关键词 photoacoustic imaging power Doppler limited view deep learning imaging fusion
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A rectangular cross-section field-of-view rotational computed laminography and its analytical reconstruction method 认领 引用
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作者 Xiang Zou Wu-Liang Shi +1 位作者 Mu-Ge Du Yu-Xiang Xing 《Nuclear Science and Techniques》 SCIE EI CAS CSCD 2026年第3期18-34,共17页
Rotational computed laminography(CL)has broad application potential in three-dimensional imaging of plate-like objects because it only requires X-rays to pass through the tested object in the thickness direction durin... Rotational computed laminography(CL)has broad application potential in three-dimensional imaging of plate-like objects because it only requires X-rays to pass through the tested object in the thickness direction during the imaging process.In this study,a rectangular cross-section field-of-view rotational CL(RC-CL)is proposed for circuit board imaging.Compared to other rotational CL systems,the field of view is the largest and most suitable for rectangular circuit boards.Meanwhile,as the imaging geometry of RC-CL is significantly different from that of cone-beam CT,the Feldkamp-Davis-Kress(FDK)reconstruction algorithm cannot be used directly.However,transferring the projection data to fit into the CBCT geometry using two-dimensional interpolation introduces interpolation errors.Therefore,an FDK-type analytical reconstruction algorithm applicable to RC-CL was developed.The effectiveness of the method was validated through numerical experiments,and the influence of the tilt angle on the reconstruction results was analyzed.Finally,the RC-CL technique was applied to real defect detection research on circuit boards. 展开更多
关键词 Computed tomography(CT) Computed laminography(CL) Field of view FDK Analytical reconstruction
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CleanSplat:curriculum structural Gaussian splatting for spot−free novel view synthesis 认领 引用
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作者 Shengjia LIANG Tong CHEN +2 位作者 Qichuan GENG Yuan XIONG Zhong ZHOU 《虚拟现实与智能硬件（中英文）》 EI CSCD 2026年第2期235-249,共15页
3D Gaussian splatting(3DGS)has gained significant attention for its real-time,photorealistic rendering in novel view synthesis.However,its performance degrades severely when applied to real-world scenes with transient... 3D Gaussian splatting(3DGS)has gained significant attention for its real-time,photorealistic rendering in novel view synthesis.However,its performance degrades severely when applied to real-world scenes with transients that break cross-view consistency.Existing methods typically attempt to identify and mask out these transients,but inherent masking errors often leave behind incoherent floating Gaussians,resulting in spotted artifacts that degrade the final scene quality.To address these limitations,we propose CleanSplat,a curriculum structural Gaussian splatting method that purifies the scene Gaussians through curriculum 3DGS optimization for transient removal and structural pruning of spotted artifacts.We introduce a curriculum-guided masking paradigm that generates coarse-to-fine transient masks from multi-scale features.The progressive optimization is driven by modulating the masking supervision based on current training state.To clear the spots,we propose a structure-aware handling strategy that employs a superpoint graph(SPG)partitioning of the Gaussians to perform principled identification and hierarchical pruning.This allows for the filtering of both intra-superpoint outliers and entire spurious superpoints based on local 3D coherence instead of only simple photometric consistency.By integrating curriculum 3DGS optimization and structural pruning,our method effectively separates the transients and purifies the static scene Gaussians.Extensive experiments on challenging datasets demonstrate that CleanSplat significantly outperforms state-of-the-art methods,delivering more detailed and cleaner novel view synthesis. 展开更多
关键词 Novel view synthesis Robust radiance fields 3D Gaussian splatting Superpoint graphs
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SVLGaussian:Single View Language Gaussian Splatting 认领 引用
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作者 Jiachen Wang Mingyang Ding +5 位作者 Min Tan Luocheng Zhang Jingrui Fan Wenwen Pan Zhou Yu Jiajun Ding 《CAAI Transactions on Intelligence Technology》 SCIE EI CSCD 2026年第3期875-899,共25页
Open-vocabulary 3D querying based on 3D Gaussian splatting(3DGS)shows great promise in facilitating accurate 3D query capabilities of AI systems.These methods typically rely on pre-captured multi-view images to enable... Open-vocabulary 3D querying based on 3D Gaussian splatting(3DGS)shows great promise in facilitating accurate 3D query capabilities of AI systems.These methods typically rely on pre-captured multi-view images to enable natural language interactions with 3D scenes.In practice,when embodied AI encounters unexplored scenes,it is difficult to obtain observations from different viewpoints beforehand.This challenge highlights the importance of exploring natural language-driven 3D scene querying from a single current viewpoint.This paper proposes single view language Gaussian splatting(SVLGaussian)for the novel task:Open-vocabulary 3D querying based on the input single view.By leveraging multi-round inference of multimodal large language models,SVLGaussian efficiently generates pixel-level semantic probabilities and rapidly embeds them into a 3D Gaussian field,enabling real-time language-guided semantic querying.To verify our model,we annotated three datasets:Lerf_ovs and 3D-OVS,which are tailored for open-vocabulary 3D querying,and RE10K,which is adapted for single-view 3D reconstruction.Both quantitative and qualitative results show that our method effectively supports open-vocabulary 3D querying from a single view. 展开更多
关键词 Gaussian splatting language‐driven semantic querying single‐view 3D reconstruction
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Achromatic single-layer waveguide for wide-view augmented reality displays 认领 引用
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作者 JIANBIN QIU ZIJIAN LIN +10 位作者 LISHENG YAO HAONAN JIANG MAN-CHUN TSENG FION SZE YAN YEUNG YUN YE SHENG XU QUN YAN TAILIANG GUO HOI-SING KWOK WANLONG ZHANG ENGUO CHEN 《Photonics Research》 SCIE EI CAS CSCD 2026年第5期2107-2120,共14页
Waveguide technology stands as the cornerstone of augmented reality(AR)displays.The polarization volume grating(PVG),with strong refractive index modulation and distinctive polarization selectivity,has exhibited great... Waveguide technology stands as the cornerstone of augmented reality(AR)displays.The polarization volume grating(PVG),with strong refractive index modulation and distinctive polarization selectivity,has exhibited great potential to achieve the two core prerequisites[full-color vision and wide field of view(FOV)]of current wave-guide-based AR displays.However,the development of single-layer full-color PVG waveguides remains stagnant,primarily hindered by severe chromatic dispersion. 展开更多
关键词 achromatic single layer waveguide polarization volume grating pvg refractive index modulation chromatic dispersion waveguide technology polarization selectivityhas polarization volume grating wide view augmented reality displays
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Super-field-of-view non-line-of-sight imaging via spatial encoding of a translated point spread function 认领 引用
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作者 TONGYAO LI YINGJIE SHI +5 位作者 JINYE MIAO YI WEI LINGFENG LIU LIANFA BAI ENLAI GUO JING HAN 《Photonics Research》 SCIE EI CAS CSCD 2026年第5期1959-1972,共14页
Non-line-of-sight(NLOS)imaging aims to reconstruct objects beyond line-of-sight view,offering potential applications in various fields.However,conventional transient NLOS methods are constrained by the detection regio... Non-line-of-sight(NLOS)imaging aims to reconstruct objects beyond line-of-sight view,offering potential applications in various fields.However,conventional transient NLOS methods are constrained by the detection region,preventing the reconstruction of targets outside its normal space and thereby limiting practical applicability.In this paper,a computational imaging method for super-field-of-view(Super-FoV)reconstruction based on spatial encoding of a translated point spread function(PSF)is proposed. 展开更多
关键词 computational imaging method reconstruct objects translated point spread function psf non line sight imaging spatial encoding super field view computational imaging translated point spread function
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The utility of the trans-splenic retrocardiac view in supine critically ill patients 认领 引用
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作者 Issac Cheong Pablo Martín Merlo Francisco Marcelo Tamagnone 《World Journal of Emergency Medicine》 SCIE CAS CSCD 2026年第2期205-206,共2页
Monitoring cardiac function is a fundamental component of the diagnosis and management of critically ill patients.While pulmonary artery catheterization has long served as the standard for hemodynamic assessment,its i... Monitoring cardiac function is a fundamental component of the diagnosis and management of critically ill patients.While pulmonary artery catheterization has long served as the standard for hemodynamic assessment,its invasive nature and associated risks have shifted clinical practice toward non-invasive modalities.[1] Among these methods,point-of-care ultrasound(POCUS) has gained widespread acceptance,offering real-time bedside evaluation of cardiac function. 展开更多
关键词 cardiac function monitoring monitoring cardiac function hemodynamic assessmentits trans splenic retrocardiac view non invasive modalities cardiac function pulmonary artery catheterization supine critically ill patients
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Associations between Mukbang Viewing and Anxiety among Adolescents:A Cross-Sectional Mediation Analysis of High-Caffeine Beverages and Sugar-Sweetened Beverages Intake 认领 引用
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作者 Eungyeong Kim 《International Journal of Mental Health Promotion》 2026年第5期67-76,共10页
Background:Adolescents are highly exposed to digital food-related content,including mukbang videos,yet the psychological consequences of such exposure remain insufficiently understood.This study aimed to examine the a... Background:Adolescents are highly exposed to digital food-related content,including mukbang videos,yet the psychological consequences of such exposure remain insufficiently understood.This study aimed to examine the association between mukbang viewing and anxiety among adolescents and to investigate the mediating roles of high-caffeine beverages and sugar-sweetened beverages intake.Methods:Data from 51,850 adolescents were drawn from the 2022 Korea Youth Risk Behavior Web-based Survey.Parallel mediation analyses were conducted using PROCESS Model 4 with 5000 bootstrap samples to assess whether the frequency of high-caffeine beverages and sugar-sweetened beverages consumption mediated the association between mukbang viewing and anxiety.Analyses were adjusted for academic record,household economic level,grade,and gender.Results:Mukbang viewing was positively associated with anxiety(p<0.001).Watching mukbang significantly predicted higher high-caffeine beverages(B=0.0363,p<0.001)and sugar-sweetened beverages(B=0.0663,p<0.001).In the mediation model,both high-caffeine beverages intake(B=0.4064,p<0.001)and sugar-sweetened beverages intake(B=0.2457,p<0.001)were significantly associated with increased anxiety.The total effect of mukbang viewing on anxiety was significant(B=0.1053),with both a direct effect(B=0.0743)and a significant indirect effect through the two mediators(B=0.0311).Bootstrapped confidence intervals confirmed significant indirect pathways via high-caffeine beverages(B=0.0148,95%CI[0.0120,0.0175])and sugar-sweetened beverages(B=0.0163,95%CI[0.0136,0.0192]).Conclusions:Mukbang viewing is associated with higher anxiety among adolescents,and this relationship is partially mediated by increased high-caffeine beverages and sugar-sweetened beverages intake.These findings suggest that dietary behaviors represent important behavioral pathways linking digital food content exposure to adolescent mental health. 展开更多
关键词 Mukbang viewing adolescents anxiety mediation analysis
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Laparoscopic cholecystectomy in patients with situs inversus totalis:Two case reports and review of literature 认领 引用
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作者 Gajendra Bhati Gabriella Teresa Capolupo +5 位作者 Marco Caricato Filippo Carannante Kamna Bhati Akshansh Gupta Raghav Bansal Polishetti Sai Srinija 《World Journal of Clinical Cases》 2026年第12期47-55,共9页
BACKGROUND Situs inversus totalis(SIT)is a rare congenital anomaly characterized by complete mirror-image transposition of thoracic and abdominal organs.The presence of gallstone disease in these patients represents a... BACKGROUND Situs inversus totalis(SIT)is a rare congenital anomaly characterized by complete mirror-image transposition of thoracic and abdominal organs.The presence of gallstone disease in these patients represents a diagnostic and technical challenge,particularly when laparoscopic cholecystectomy is indicated.CASE SUMMARY We report two cases of symptomatic gallstone disease in patients with SIT.The first case involved a 27-year-old female diagnosed with cholelithiasis following radiological evaluation,while the second case involved a 45-year-old male presenting with cholelithiasis and choledocholithiasis requiring preoperative endoscopic retrograde cholangiopancreatography.Cases were identified retrospectively from institutional surgical records.Data were collected from clinical charts,imaging studies,operative reports,and follow-up visits.In both patients,laparoscopic cholecystectomy was successfully performed using a mirror-image port placement strategy.No intraoperative or postoperative complications occurred,and both patients were discharged on the first postoperative day.CONCLUSION Laparoscopic cholecystectomy in patients with SIT is safe and feasible when meticulous preoperative imaging and careful adaptation of surgical technique are employed.Awareness of mirror-image anatomy and strict adherence to the critical view of safety are essential to minimize the risk of iatrogenic injury. 展开更多
关键词 Situs inversus totalis Laparoscopic cholecystectomy Cholelithiasis Choledocholithiasis Endoscopic retrograde cholangiopancreatography Mirror-image anatomy Critical view of safety Case report
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Re-examining the Core Philosophical Views of Marx and Engels From the Perspective of the Unified Complex Systems Theory 认领 引用
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作者 CUI Weicheng 《Philosophy Study》 2026年第2期101-114,共14页
With holism,dynamics,interconnectedness,and emergence as its core characteristics,the Unified Complex Systems Theory(UCST)focuses on the evolutionary laws and intrinsic mechanisms of multi-element,multi-level,and mult... With holism,dynamics,interconnectedness,and emergence as its core characteristics,the Unified Complex Systems Theory(UCST)focuses on the evolutionary laws and intrinsic mechanisms of multi-element,multi-level,and multi-dimensional systems,providing a scientific analytical framework for accurately judging the existence and development of various complex phenomena.The core philosophical views of Marx and Engels,including historical materialism,dialectics,alienation theory,and communism theory,have sparked extensive debates since their proposal-garnering numerous adherents while also facing sharp criticisms-and continue to exert a certain influence on the global intellectual and political arenas.Based on the perspective of the UCST,this paper draws on both the interpretations and developments of their views by proponents such as Lenin,Lukács,and Habermas,as well as the doubts and reflections raised by critics like Popper,Russell,and Hayek.From the dual dimensions of theoretical logic and practical verification,it comprehensively analyzes the theoretical value and inherent limitations of Marx and Engels’core philosophical views.Incorporating practical cases from multiple countries and academic research findings,this study aims to provide a neutral,objective,and pluralistic reference for the rational understanding of Marxist philosophy. 展开更多
关键词 Unified Complex Systems Theory(UCST) Marx Engels philosophical views pluralistic examination proponents critics
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A Restatement of the Ethical View on Human Genetic Research Based on the Constitution 认领 引用
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作者 SHI Jing 《The Journal of Human Rights》 2025年第3期723-748,共26页
The establishment of a sound science and technology ethics governance system is an inevitable requirement for national modernization.Faced with the development of human gene technology and the chaos in research activi... The establishment of a sound science and technology ethics governance system is an inevitable requirement for national modernization.Faced with the development of human gene technology and the chaos in research activities,the ethical standards and legal positioning of human gene research activities urgently need to be clarified.The human rights ethics view has value inclusiveness and value fundamentality,and includes three levels of connotations:content dimension,relationship dimension,and obligation dimension.It should serve as the ethical standard for human gene research activities.Based on the provisions of China’s Constitution,the human rights ethics view on human gene research,as a constitutional ethics view,can elucidate different levels of rights content,such as human dignity,life and health,and research freedom.It also addresses the weighing of basic rights conflicts and the dual obligation subjects of public and private nature.Relying on the constitutional value embedding of the research ethics view to form ethical consensus,improving ethical review through framework legislation for human rights interests,and implementing ethical responsibility through the human rights-oriented interpretation of ethical legal norms are the three pathways to realizing the human rights ethics view on human gene research. 展开更多
关键词 ethical view on human gene research research freedom basic rights human rights ethics view constitutional interpretation
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Examining the impact of urban environment on healthy vitality of outdoor running based on street view imagery and urban big data 认领 引用 被引量：4
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作者 GU Xinyue ZHU Lei LIU Xintao 《Journal of Geographical Sciences》 SCIE CSCD 2025年第3期641-663,共23页
Urban environments offer a wealth of opportunities for residents to respite from their hectic life.Outdoor running or jogging becomes increasingly popular of an option.Impacts of urban environments on outdoor running,... Urban environments offer a wealth of opportunities for residents to respite from their hectic life.Outdoor running or jogging becomes increasingly popular of an option.Impacts of urban environments on outdoor running,despite some initial studies,remain underexplored.This study aims to establish an analytical framework that can holistically assess the urban environment on the healthy vitality of running.The proposed framework is applied to two modern Chinese cities,i.e.,Guangzhou and Shenzhen.We construct three interpretable random forest models to explore the non-linear relationship between environmental variables and running intensity(RI)through analyzing the runners'trajectories and integrating with multi-source urban big data(e.g.,street view imagery,remote sensing,and socio-economic data)across the built,natural,and social dimensions,The findings uncover that road density has the greatest impact on RI,and social variables(e.g.,population density and housing price)and natural variables(e.g.,slope and humidity)all make notable impact on outdoor running.Despite these findings,the impact of environmental variables likely change across different regions due to disparate regional construction and micro-environments,and those specific impacts as well as optimal thresholds also alter.Therefore,construction of healthy cities should take the whole urban environment into account and adapt to local conditions.This study provides a comprehensive evaluation on the influencing variables of healthy vitality and guides sustainable urban planning for creating running-friendly cities. 展开更多
关键词 street view imagery urban pavements healthy cities urban vitality running-friendly cities running intensity
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Auto-Weighted Neutrosophic Fuzzy Clustering for Multi-View Data 认领 引用
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作者 Zhe Liu Jiahao Shi +2 位作者 Dania Santina Yulong Huang Nabil Mlaiki 《Computer Modeling in Engineering & Sciences》 SCIE EI 2025年第9期3531-3555,共25页
The increasing prevalence of multi-view data has made multi-view clustering a crucial technique for discovering latent structures from heterogeneous representations.However,traditional fuzzy clustering algorithms show... The increasing prevalence of multi-view data has made multi-view clustering a crucial technique for discovering latent structures from heterogeneous representations.However,traditional fuzzy clustering algorithms show limitations with the inherent uncertainty and imprecision of such data,as they rely on a single-dimensional membership value.To overcome these limitations,we propose an auto-weighted multi-view neutrosophic fuzzy clustering(AW-MVNFC)algorithm.Our method leverages the neutrosophic framework,an extension of fuzzy sets,to explicitly model imprecision and ambiguity through three membership degrees.The core novelty of AWMVNFC lies in a hierarchical weighting strategy that adaptively learns the contributions of both individual data views and the importance of each feature within a view.Through a unified objective function,AW-MVNFC jointly optimizes the neutrosophic membership assignments,cluster centers,and the distributions of view and feature weights.Comprehensive experiments conducted on synthetic and real-world datasets demonstrate that our algorithm achieves more accurate and stable clustering than existing methods,demonstrating its effectiveness in handling the complexities of multi-view data. 展开更多
关键词 Multi-view data neutrosophic fuzzy clustering view weight feature weight uncertainty
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基于LabVIEW软件的锂电池故障模拟检测系统设计 认领 引用 被引量：2
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作者 王彬 杨德亮 《北京工业职业技术学院学报》 2025年第1期6-11,共6页
电动汽车、可再生能源等领域迅速发展,锂离子电池作为核心能源储存和释放的组件,性能评估尤为重要。通过设计一种基于LabVIEW软件的锂电池故障模拟检测系统,实现对锂电池故障的模拟、检测和分析,为锂电池的研发、生产和维护提供技术支... 电动汽车、可再生能源等领域迅速发展,锂离子电池作为核心能源储存和释放的组件,性能评估尤为重要。通过设计一种基于LabVIEW软件的锂电池故障模拟检测系统,实现对锂电池故障的模拟、检测和分析,为锂电池的研发、生产和维护提供技术支持。设计的系统采用LabVIEW软件,结合数据采集卡、充放电设备等硬件,对锂电池充放电全流程中可能出现的各类工况进行模拟,监测各项电气参数,实时分析处理各类异常数据,完成故障诊断。 展开更多
关键词 LabVIEW软件 模拟检测 数据采集 故障诊断
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Software Defect Prediction Based on Semantic Views of Metrics:Clustering Analysis and Model Performance Analysis 认领 引用
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作者 Baishun Zhou Haijiao Zhao +4 位作者 Yuxin Wen Gangyi Ding Ying Xing Xinyang Lin Lei Xiao 《Computers, Materials & Continua》 SCIE EI 2025年第9期5201-5221,共21页
In recent years,with the rapid development of software systems,the continuous expansion of software scale and the increasing complexity of systems have led to the emergence of a growing number of software metrics.Defe... In recent years,with the rapid development of software systems,the continuous expansion of software scale and the increasing complexity of systems have led to the emergence of a growing number of software metrics.Defect prediction methods based on software metric elements highly rely on software metric data.However,redundant software metric data is not conducive to efficient defect prediction,posing severe challenges to current software defect prediction tasks.To address these issues,this paper focuses on the rational clustering of software metric data.Firstly,multiple software projects are evaluated to determine the preset number of clusters for software metrics,and various clustering methods are employed to cluster the metric elements.Subsequently,a co-occurrence matrix is designed to comprehensively quantify the number of times that metrics appear in the same category.Based on the comprehensive results,the software metric data are divided into two semantic views containing different metrics,thereby analyzing the semantic information behind the software metrics.On this basis,this paper also conducts an in-depth analysis of the impact of different semantic view of metrics on defect prediction results,as well as the performance of various classification models under these semantic views.Experiments show that the joint use of the two semantic views can significantly improve the performance of models in software defect prediction,providing a new understanding and approach at the semantic view level for defect prediction research based on software metrics. 展开更多
关键词 Software defect prediction software engineering semantic views clustering interpretability
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现代检测技术与LabVIEW实验课程交叉融合的探索与改革 认领 引用
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作者 宋爱娟 张国荣 +1 位作者 袁重焕 孟范伟 《实验室科学》 2025年第1期67-72,77,共6页
随着科技进步以及学生求职需求,高校教学中学科的交叉与综合运用已经成为高等教育深化改革和发展的必然趋势。因此,基于东北大学自动化、测控技术与仪器等领域改革的成功经验,在实验教学探索过程中,将现代检测技术中的传感器检测与转换... 随着科技进步以及学生求职需求,高校教学中学科的交叉与综合运用已经成为高等教育深化改革和发展的必然趋势。因此,基于东北大学自动化、测控技术与仪器等领域改革的成功经验,在实验教学探索过程中,将现代检测技术中的传感器检测与转换实验同功能强大的虚拟仪器Lab VIEW软件实验课程相结合,搭建基于虚拟仪器技术的传感器综合实验平台,将平台的物理设备、计算机通信、软件设计和人机交互界面的建立与设计统筹为实验课程的全部内容。采用这个平台可以模拟科研及项目开发的完整过程,从而培养学生开发项目的实践能力、科研能力、创造能力,同时提高实验室设备的利用效率,使教育教学资源得到充分利用,改变了当下传统验证实验现象、与工程实践严重脱节的实验课程。 展开更多
关键词 传感器技术 Lab VIEW 学科的交叉融合 实验课程改革
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Hybrid receptive field network for small object detection on drone view 认领 引用 被引量：3
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作者 Zhaodong CHEN Hongbing JI +2 位作者 Yongquan ZHANG Wenke LIU Zhigang ZHU 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2025年第2期322-338,共17页
Drone-based small object detection is of great significance in practical applications such as military actions, disaster rescue, transportation, etc. However, the severe scale differences in objects captured by drones... Drone-based small object detection is of great significance in practical applications such as military actions, disaster rescue, transportation, etc. However, the severe scale differences in objects captured by drones and lack of detail information for small-scale objects make drone-based small object detection a formidable challenge. To address these issues, we first develop a mathematical model to explore how changing receptive fields impacts the polynomial fitting results. Subsequently, based on the obtained conclusions, we propose a simple but effective Hybrid Receptive Field Network (HRFNet), whose modules include Hybrid Feature Augmentation (HFA), Hybrid Feature Pyramid (HFP) and Dual Scale Head (DSH). Specifically, HFA employs parallel dilated convolution kernels of different sizes to extend shallow features with different receptive fields, committed to improving the multi-scale adaptability of the network;HFP enhances the perception of small objects by capturing contextual information across layers, while DSH reconstructs the original prediction head utilizing a set of high-resolution features and ultrahigh-resolution features. In addition, in order to train HRFNet, the corresponding dual-scale loss function is designed. Finally, comprehensive evaluation results on public benchmarks such as VisDrone-DET and TinyPerson demonstrate the robustness of the proposed method. Most impressively, the proposed HRFNet achieves a mAP of 51.0 on VisDrone-DET with 29.3 M parameters, which outperforms the extant state-of-the-art detectors. HRFNet also performs excellently in complex scenarios captured by drones, achieving the best performance on the CS-Drone dataset we built. 展开更多
关键词 Drone remote sensing Object detection on drone view Small object detector Hybrid receptive field Feature pyramid network Feature augmentation Multi-scale object detection
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Sparse-view irradiation processing volumetric additive manufacturing 认领 引用 被引量：1
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作者 Huiyuan Wang Fangyuan Gao +6 位作者 Yu Shi Kai Wang Xinbo Wei Chunyang Ma Xiewen Wen Xueli Chen Jiebo Li 《International Journal of Extreme Manufacturing》 SCIE EI CAS CSCD 2025年第6期376-388,共13页
Volumetric additive manufacturing(VAM) transforms traditional 2D light pattern projection into spatial light field energy superposition,maximizing the utilization of radiated light and allowing for ultra-fast,support-... Volumetric additive manufacturing(VAM) transforms traditional 2D light pattern projection into spatial light field energy superposition,maximizing the utilization of radiated light and allowing for ultra-fast,support-free printing,which has specific applications in fields such as life sciences and optics.However,traditional VAM processes require numerous projections and extensive computational preparation,limiting practical applications due to low projection efficiency and prolonged calculation times.In this study,we developed sparse-view irradiation processing VAM(SVIP-VAM),employing an optimized odd-even(OE) irradiation strategy inspired by sparse-view computed tomography.Theoretically,we demonstrated structural contour reconstruction feasibility with as few as 8 projections.Using this sparse-view approach,we achieved high-quality fabrication with only 15 projections,enhancing each projection efficiency by over 60 times and reducing projection set computational time by nearly 10-fold.Ultimately,this efficient sparse-view method significantly expands VAM applications into fields requiring rapid manufacturing,such as tissue engineering,medical implants,and aerospace manufacturing. 展开更多
关键词 volumetric additive manufacturing 3D printing sparse view odd-even irradiation
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