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HSNR: A Network Representation Learning Algorithm Using Hierarchical Structure Embedding

Chinese Journal of Electronics 2020年第6期29卷 1141-1152页

作者： ye Zhonglin zhao Haixing ZHU yu XIAO yuzhi College of Computer Qinghai Normal University Tibetan Information Processing and Machine Translation Key Laboratory of Qinghai Province Key Laboratory of Tibetan Information Processing Ministry of Education

Vertices in the same group tend to connect densely,and usually share common *** of different sizes reflect the relations of vertices in different ranges,and also reflect the features of different orders of the *** this work,we propose a novel network representation learning algorithm by introducing group features of vertices of different orders to learn more discriminative network representations,named as network representation learning algorithm using Hierarchical structure embedding(HSNR).HSNR algorithm firstly constructs hierarchical relations of network structures of different orders based on greedy algorithm and *** order to introduce hierarchical features into the network representation learning model,HSNR algorithm then introduces the idea of multi-relational modeling from knowledge representation,and converts the hierarchical relations into the triplet form between ***,HSNR proposes a joint learning model embedding vertex triplets into the network *** experimental results show that the HSRN algorithm presented has an excellent performance in network vertex classification task on three real-world datasets.

关键词： group features network vertex classification task network structures Combinatorial mathematics HSNR algorithm hierarchical features novel network representation discriminative network representations joint learning model Hierarchical structure embedding network representation learning model Data handling techniques vertices network representation learning algorithm HSRN algorithm graph theory Computer vision and image processing techniques hierarchical relations knowledge representation greedy algorithm learning (artificial intelligence) greedy algorithms Knowledge engineering techniques

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Laser direct writing of flexible multifunctional airflow sensors on the Kevlar fabric

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Nano Research 2025年第1期18卷 443-454页

作者： Wei Wang Zi-Qing Chen Yong-Qi Li yu-Long Wang Mei-Chen Liu yun-Bo Ruan Yang Zhang Shu-Juan Liu Qiang zhao College of Electronic and Optical Engineering and College of Flexible Electronics(Future Technology) Nanjing University of Posts and TelecommunicationsNanjing 210023China State Key Laboratory of Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts and TelecommunicationsNanjing 210023China Zhe Jiang Topsun Logistic Control CO. LTD.Yuhuan 317600China Department of Rehabilitation Medicine School of Acupuncture-Moxibustion and Tuina and School of Health Preservation and RehabilitationNanjing University of Chinese MedicineNanjing 210023China

The growing interest in flexible devices has emerged as a global trend due to their advantages in flexibility,lightweight structure,and wearability,addressing the limitations of traditional *** wearable airflow sensors have been previously reported,the development of flexible fabric-based airflow sensors capable of functioning in environments with open flames—critical for fire rescue operations—has yet to be explored,largely due to the poor fire resistance of conventional *** this work,we first present a flexible,wearable,and multifunctional airflow sensor with excellent fire-resistant properties,fabricated through a simple direct laser writing *** sensor maintains airflow detection capabilities even in the presence of open ***,the fabrication of fabric-based sensors involves complex procedures such as carbon materials doping or vapor-phase deposition,leading to lengthy preparation cycles and high ***,fabric-based devices are inherently prone to *** address these challenges,we introduce twice-vertical laser-induced graphene(TVLIG)as a sensitive and reliable component for fire-resistant airflow *** resulting TVLIG/Kevlar fabric can be integrated into various garments,particularly protective suits,to form sensitive and fire-resistant airflow sensors capable of detecting airflow velocity and direction in both two-dimensional(2D)and three-dimensional(3D)spaces during fire ***,the TVLIG patterns can be expanded to multifunctional platforms,such as glucose detection for injured individuals,offering further applications in rescue *** functional expansion reduces the burden on rescue personnel and streamlines device *** its outstanding sensing capabilities,fire resistance,and expandability,the developed flexible airflow sensor shows great potential for various real-world rescue scenarios,promising advancements in wearable sensing technology for rescue enginee

关键词： flexible airflow sensor direct laser writing twice-vertical laser-induced graphene fire accident rescue Kevlar fabric

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海南省城乡中小学生近视现况及其差异性分析

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实用预防医学 2022年第10期29卷 1172-1176页

作者：符文雅王丽卿吴挺利叶宇昭刘玉梅田冶海南医学院公共卫生学院海南海口571199

目的了解海南省城乡中小学生近视现状,探讨近视影响因素的城乡差异性,为进一步精准分级防控青少年近视提供科学理论依据。方法于2019年10—11月采用多阶段抽样方法在全省18个市县选取31所中小学的13193名学生,对其进行视力检查、屈光检... 详细信息

目的了解海南省城乡中小学生近视现状,探讨近视影响因素的城乡差异性,为进一步精准分级防控青少年近视提供科学理论依据。方法于2019年10—11月采用多阶段抽样方法在全省18个市县选取31所中小学的13193名学生,对其进行视力检查、屈光检查和问卷调查。利用多水平Logistic模型分析城乡中小学生近视的影响因素。结果海南省城乡中小学生整体近视率为52.49%,其中城市近视率为56.57%,高于农村的49.04%(χ2=74.366,P<0.001);近视存在学校聚集性,多水平模型拟合结果显示,在城市学生中,女生(OR=1.762,95%CI:1.494~2.079)、年龄大(OR=1.181,95%CI:1.062~1.312)、上学日放学后静坐学习时长≥2 h(OR=1.188,95%CI:1.032~1.367)和周末看电子产品时长≥1 h(OR=1.207,95%CI:1.028~1.418)的近视风险相对较高(均P<0.05);在农村学生中,女生(OR=1.724,95%CI:1.499~1.983)、年龄大(OR=1.198,95%CI:1.123~1.279)、周末静坐学习时长≥2 h(OR=1.195,95%CI:1.078~1.325)的近视风险相对较高(均P<0.05)。睡眠时长越长,风险相对越低(OR=0.887,95%CI:0.822~0.957,P<0.05)。结论海南省中小学生近视率相对较低,且存在城乡差异,应从课后作业、电子产品使用时长和睡眠时间等方面加强家校合作,切实有效地加强近视防控。

关键词：近视多水平模型中小学生城乡

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346例住院患者抗精神病药物使用情况分析

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四川精神卫生 2016年第5期29卷 439-441,445页

作者：周有才郭月平叶芬赵延宇广州市民政局精神病院广东广州510430

目的了解住院患者抗精神病药使用情况,为临床医生规范、合理、安全使用精神科药物提供参考。方法采用整群抽样抽取我院接受抗精神病药物治疗的住院患者346例,其中普通收治患者198例,城市流浪救治患者148例;男性188例,女性158例,年龄(46... 详细信息

目的了解住院患者抗精神病药使用情况,为临床医生规范、合理、安全使用精神科药物提供参考。方法采用整群抽样抽取我院接受抗精神病药物治疗的住院患者346例,其中普通收治患者198例,城市流浪救治患者148例;男性188例,女性158例,年龄(46.22±14.50)岁,住院时间为(7.91±9.84)年。结果单一用药252例(72.8%),合并用药94例(27.2%);合并用药中,氯氮平联合利培酮使用率达33.0%,高于其他合并用药组合。单一用药的患者平均年龄低于合并用药患者[(44.92±14.74)岁vs.(49.72±13.30)岁,P=0.001],且住院时间也较合并用药患者短[(6.72±9.54)年vs.(11.10±9.96)年,P=0.006],单一用药患者中救治患者多于普通患者(135例vs.117例,P=0.008),而合并用药患者中普通患者多于救治患者(81例vs.13例,P=0.008)。结论我院住院患者的用药特点以单一用药为主,少数合并用药,而合并用药则为联合一种药物。

关键词：单一用药合并用药非典型抗精神病药典型抗精神病药

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渠道和水庫附近有截渗排水沟情况下地下水恒定运动的研究

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水利学报 1964年第5期 30-45页

作者：瞿兴業赵宝玉张月娴水利水电科学研究院水利研究所

本文应用地下水动力学近似方法,探討了渠道和水庫附近有截渗排水沟时地下水恆定运动的一般問題.渗流区为均貭土地段,不透水层有限埋深.在簡化地下水面为水平直线的基础上,通过保角变換,得到計算渠道和水庫的渗漏量以及地下水位差值沿程... 详细信息

本文应用地下水动力学近似方法,探討了渠道和水庫附近有截渗排水沟时地下水恆定运动的一般問題.渗流区为均貭土地段,不透水层有限埋深.在簡化地下水面为水平直线的基础上,通过保角变換,得到計算渠道和水庫的渗漏量以及地下水位差值沿程分布的关系式.文中引用电拟模型試驗资料,初步論証了截渗排水沟适宜的位置和深度,并对建議的計算关系式进行了驗証.

关键词：截渗排水渗漏量地下水位水文地质参数地下水渠道输水建筑物

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Design of Vegetable Pot Seedling Pick‑up Mechanism with Planetary Gear Train

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Chinese Journal of Mechanical Engineering 2020年第4期33卷 87-97页

作者： Zhipeng Tong Gaohong yu Xiong zhao Pengfei Liu Bingliang ye Zhejiang Province Key Laboratory of Transplanting Equipment and Technology Zhejiang Sci-Tech UniversityHangzhou 310018China Faculty of Mechanical Engineering&Automation Zhejiang Sci-Tech UniversityHangzhou 310018China

It has been challenging to design seedling pick-up mechanism based on given key points and trajectories,because it involves dimensional synthesis and rod length *** this paper,the dimensional synthesis of seedling pickup mechanism with planetary gear train was studied based on the data of given key points and the trajectory of the endpoint of seedling pick-up *** the positions and orientations requirements of the five key points,the study first conducted a dimensional synthesis of the linkage size and center of *** next steps were to select a reasonable solution and optimize the data values based on the ideal seedling *** link motion was driven by the planetary gear train of the two-stage *** pitch curves of noncircular gears were obtained by calculating and distributing the transmission ratio according to the *** the pitch curve with two convex points,the tooth profile design method of incomplete noncircular gear was *** seedling pick-up mechanism was tested by a virtual prototype and a physical prototype designed with the obtained parameter *** results were consistent with the theoretical design requirements,confirming that the mechanism meets the expected requirements for picking seedlings *** paper presents a new design method of vegetable pot seedling pick-up mechanism for an automatic vegetable transplanter.

关键词： Combined incomplete noncircular gear Mechanism dimension synthesis Planetary gear train Seedling pick-up mechanism

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Exploiting demand-side heterogeneous flexible resources in risk management of power system frequency

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Science China(Technological Sciences) 2024年第5期67卷 1612-1627页

作者： YAO yu SONG YongHua ye ChengJin DING Yi zhao yuMing College of Electrical Engineering Zhejiang UniversityHangzhou310027China State Key Laboratory of Internet of Things for Smart City University of MacaoMacao SAR519000China Shenzhen Power Supply Bureau Co. Ltd.Shenzhen518051China

More demand-side flexible resources(DFRs)are participating in the frequency regulation of renewable power systems,whose heterogeneous characteristics have a significant impact on the system frequency ***,selecting suitable DFRs poses a formidable challenge for independent system operators(ISO).In this paper,a reserve allocation methodology for heterogeneous DFRs is proposed to manage the risk of power system ***,a performance curve is developed to describe the cost,capacity,and response speed of ***,a clustering method for multiple distributed DFRs is conducted to calculate the aggregated performance curves and uncertainty ***,the frequency security criterion considering DFRs’performance is constructed,whose linearity makes it can be easily coupled into the system scheduling model and ***,a risk management model for DFRs considering frequency-chance-constraint is proposed to make a trade-off between cost and frequency ***,the model is transformed into mixed integer second-order cone programming(MISOCP)and solved by the commercial *** proposed model is validated by the IEEE 30 and IEEE 118 bus systems.

关键词： demand-side heterogenous flexible resources risk management of power system frequency performance curve aggregation method mixed integer second-order cone programming

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Relationship between parenting stress and behavioral and emotional problems in preschool children: A mediation effect analysis

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World Journal of Psychiatry 2025年第1期15卷 128-136页

作者： Zhi-Wei Fu yue-Jing Li Ran yu Rui-Qing Guo Li-Xia Gao Sheng-Xia zhao Department of Children's Health Shijiazhuang Maternity and Child Healthcare HospitalShijiazhuang 050000Hebei ProvinceChina

BACKGROUND Emotional reactions,such as anxiety,irritability,and aggressive behavior,have attracted clinical attention as behavioral and emotional problems in preschool-age *** To investigate the current status of family rearing,parental stress,and behavioral and emotional problems of preschool children and to analyze the mediating effect of the current status of family rearing on parental stress and behavioral/emo-tional *** We use convenience sampling to select 258 preschool children in the physical examination center of our hospital from October 2021 to September *** children and their parents were evaluated using a questionnaire ***'s correlation was used to analyze the correlation between child behavioral and emotional problems and parental stress and family rearing,and the structural equation model was constructed to test the mediating *** The score for behavioral/emotional problems of 258 preschool children was(27.54±3.63),the score for parental stress was(87.64±11.34),and the score for parental family rearing was(31.54±5.24).There was a positive correlation between the behavioral and emotional problems of the children and the“hostile/mandatory”parenting style;meanwhile,showed a negative correlation with the“support/participation”parenting style(all P<0.05).The intermediary effect value between the family upbringing of parents in parental stress and children's behavior problems was 29.89%.CONCLUSION Parental family upbringing has a mediating effect between parental stress and behavioral and emotional problems of *** paying attention to the behavioral and emotional problems of preschool-age children,clinical medical staff should provide correct and reasonable parenting advice to their parents to promote the mental health of preschool-age children.

关键词： Preschool children Parenting stress Children's behavioral and emotional problems Family rearing Mediating effect

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Recent Progress of Aerosol Light-scattering Enhancement Factor Studies in China

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Advances in Atmospheric Sciences 2019年第9期36卷 1015-1026页

作者： Chunsheng zhao Yingli yu ye KUANG Jiangchuan TAO Gang zhao Department of Atmospheric and Oceanic Sciences School of PhysicsPeking UniversityBeijing 100871China Institute for Environmental and Climate Research Jinan UniversityGuangzhou 510632China

Assessment of the radiative forcing of aerosols in models still lacks sufficient input data for aerosol hygroscopicity. The light scattering enhancement factor [ f(RH, λ)] is a crucial parameter for describing aerosol hygroscopic growth *** this paper, we provide a survey of f(RH, λ) studies in China for the past seven years, including instrument developments of humidified nephelometers, ambient f(RH, λ) measurements in China, f(RH, λ) parameterization schemes, and f(RH, λ)applications in aerosol measurements. Comparisons of different f(RH, λ) parameterizations are carried out to check their performance in China using field measurement datasets. We also summary the parameterization schemes for predicting f(RH, λ)with aerosol chemical compositions. The recently developed methods to observe other aerosol properties using f(RH, λ)measurements, such as calculating the aerosol hygroscopicity parameter, cloud condensation nuclei number concentration,aerosol liquid water content, and aerosol asymmetry factor, are introduced. Suggestions for further research on f(RH, λ) in China are given.

关键词： aerosol hygroscopicity light-scattering enhancement factor humidified nephelometer

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Multi-site observation of large-scale eddies in the surface layer of the Loess Plateau

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Science China Earth Sciences 2023年第4期66卷 871-881页

作者： Jinbei CHEN Xiaowen CHEN Wei JIA ye yu Suping zhao Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China Key Laboratory of Middle Atmosphere and Global Environment Observation(LAGEO) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Mechanical Engineering Department Pennsylvania State UniversityState College 16802USA

This article aims to build a theory of atmospheric boundary layer turbulence under complex conditions. To achieve this goal, we constructed a multi-site observation and analysis method of atmospheric turbulence based on related *** method first requires verification for the ergodicity of the full-scale observation of surface-layer turbulence, which proves that eddies within a scale of 60 min during a four-site observation can easily meet ergodicity. Meanwhile, by applying the second-order structure function for the horizontal wind speed turbulence of a single site and upstream and downstream points, we verified the ergodicity of the turbulence observation. Comparing the turbulence spectrum to the second-order structure function for the horizontal wind speed from the four-site observation, a relatively high accordance was observed, proving the reasonability of the multi-site observation. Moreover, compared to the single-site observation, the four-site observation can improve the estimation accuracy of the surface-layer turbulence spectrum and vertical turbulent flux. As a result, we can describe the threedimensional structure of turbulence more accurately and comprehensively by combining analytical data from single-site and four-site observations. In summary, the multi-site turbulence observation method shows that the horizontal and vertical wind turbulence of the Baimiao plateau has a typical structure of a turbulence spectrum with clear spectral gaps. The result is in accordance with the scale of the turbulence spectral gaps obtained from the 6 h data. The horizontal wind speed is under the influence of the terrain, so its spectrum of large-scale eddies has higher fluctuations, but its spectral gaps can still be clearly distinguished. Although the spectral gaps of the temperature spectrum are not distinguishable, they still have the same scale as the spectral gap of the vertical and horizontal turbulence spectrum. Moreover, the temperature spectrum poss

关键词： Larger-scale eddy Complex condition Ergodicity of turbulence observation Structure function Turbulence spectrum

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