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建筑施工数字孪生模型智能预警技术研究

建筑技术开发 2024年第2期51卷 3-6页

作者：黄海荣任旭升郭勇博河南工业大学土木工程学院郑州450000

智能建造技术通过将建筑信息模型(BIM)、数字孪生、物联网等信息技术相互融合,在建筑施工中实现目标的信息集成与综合物联。而在目前建筑业的智能化发展过程中,还存在着信息化水平低、管理决策不科学、过于依赖施工经验等问题。因此,首... 详细信息

智能建造技术通过将建筑信息模型(BIM)、数字孪生、物联网等信息技术相互融合,在建筑施工中实现目标的信息集成与综合物联。而在目前建筑业的智能化发展过程中,还存在着信息化水平低、管理决策不科学、过于依赖施工经验等问题。因此,首先建立建筑施工数字孪生模型框架,然后搭建智能监控预警系统,通过将现场监测数据与理论模型的信息进行对比,对实际工程施工进行修正,对建筑施工项目智能信息化发展是有指导作用。

关键词：智能建造物联网数字孪生监测预警

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气象因素对甘蔗糖分含量的影响及模型构建

中国农业气象 2024年第6期45卷 609-618页

作者：郑国俊祝光湖王勤龙黄海荣李翔罗霆马鹏程王泽平桂林电子科技大学数学与计算科学学院/广西应用数学中心桂林541004 广西农业科学院甘蔗研究所/农业农村部广西甘蔗生物技术与遗传改良重点实验室南宁530007

利用随机森林和向前逐步选择算法筛选关键气象因素,基于广义加性模型等构建6类甘蔗糖分含量模拟模型,以关键气象因子为自变量模拟甘蔗成熟期的糖分含量,通过模拟值与实测值对比分析,对模拟效果进行评价,并量化关键气象因素对甘蔗糖分含... 详细信息

利用随机森林和向前逐步选择算法筛选关键气象因素,基于广义加性模型等构建6类甘蔗糖分含量模拟模型,以关键气象因子为自变量模拟甘蔗成熟期的糖分含量,通过模拟值与实测值对比分析,对模拟效果进行评价,并量化关键气象因素对甘蔗糖分含量的影响。结果表明:不同地区、不同时间尺度气象因素对甘蔗糖分含量均有影响,关键气象因素包括气温日较差、最低地温、日照时数、最高气温、平均气压、降水量及平均相对湿度,气温日较差对甘蔗糖分含量的影响呈近似稳定的线性趋势,其余关键气象因素对甘蔗糖分含量的影响呈复杂波动趋势。基于关键气象因素建立模拟甘蔗糖分含量的6种模型,广义加性模型模拟效果最优,拟合R^(2)达0.97,模型验证的绝对误差为0.12个百分点,相对误差为0.86%,均方根误差为0.15。说明模拟值与实测值具有较好的一致性与相关性,模型可实现对广西甘蔗糖分含量的预测,同时,量化关键气象因素对甘蔗糖分含量的影响,也为调控生态系统提供依据。

关键词：甘蔗糖分含量气象因素随机森林回归模型模拟

基于GWO-BP神经网络及粮食压缩实验对粮食孔隙率的预测

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粮油食品科技 2024年第2期32卷 186-193页

作者：陈家豪李嘉欣郑德乾尹君黄海荣葛蒙蒙张佳怡河南工业大学土木工程学院河南郑州450001 河南省粮油仓储建筑与安全重点实验室河南郑州450001 国家粮食和物资储备局科学研究院粮食储运研究所北京100037

孔隙率是影响粮堆内热湿传递的关键参数,为探究粮仓中散装粮堆孔隙率的分布规律,通过开展粮食压缩实验来获取不同的粮食种类在不同水分含量和竖向压力条件下的孔隙率。提出了一种基于灰狼算法优化BP(GWO-BP)神经网络的粮食单元体孔隙率... 详细信息

孔隙率是影响粮堆内热湿传递的关键参数,为探究粮仓中散装粮堆孔隙率的分布规律,通过开展粮食压缩实验来获取不同的粮食种类在不同水分含量和竖向压力条件下的孔隙率。提出了一种基于灰狼算法优化BP(GWO-BP)神经网络的粮食单元体孔隙率预测模型,并将该模型与BP神经网络模型、随机森林模型的孔隙率预测结果进行对比,最后利用粮食单元箱实验对该模型的泛化能力进行验证。结果表明,GWO-BP神经网络模型的孔隙率预测性能最佳,该模型的评价指标R2为0.960 5、RMSE为0.013 7及MAE为0.0131,均在允许的范围内。本研究为粮食孔隙率的确定提供了一种神经网络预测的方法,为深入开展粮堆多场耦合分析提供了重要基础,为安全储粮提供了理论支持。

关键词： GWO-BP模型粮食孔隙率压缩实验预测

Cytokine Profiles and Virological Marker Monitoring during 48 Weeks Peginterferon Alfa Treatment for HBeAg-Positive Chronic Hepatitis B

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Biomedical and Environmental Sciences 2022年第4期35卷 312-321页

作者： LI Ming Hui SUN Fang Fang CHEN Feng Xin ZENG Zhan LIN Yan Jie BI Xiao Yue YANG Liu DENG Wen JIANG Ting Ting huang rong hai YI Wei XIE Yao Department of Hepatology Division 2 Beijing Ditan HospitalCapital Medical UniversityBeijing 100015China Department of Hepatology Division 2 Peking University Ditan Teaching HospitalBeijing 100015China Capital Medical University Beijing 100069China Department of Infectious Diseases Capital Medical UniversityBeijing 100015China Department of General Surgery Capital Medical UniversityBeijing 100015China Department of Gynecology and Obstetrics Beijing Ditan HospitalCapital Medical UniversityBeijing 100015China

Objective This study aimed to investigate whether cytokine profiles and virological markers might add value in monitoring the effects of peginterferon(PEG-IFN)therapy for hepatitis B e-antigen(HBeAg)positive chronic hepatitis B(CHB).Methods HBeAg positive patients with CHB were treated with PEG-IFN for 48 *** biochemical,and HBV serological indexes,as well as cytokines,were detected at baseline and every12 *** A total of 116 patients with CHB were enrolled in this study;100 patients completed the 48-week treatment and follow-up,of whom 38 achieved serum HBeAg disappearance,25 achieved HBeAg seroconversion,37 showed HBsAg decreases≥1 log10 IU/mL,9 showed HBsAg disappearance,and 8became HBsAb *** cytokine levels at baseline and during treatment were similar between the HBeAg disappearance group and non-disappearance *** disappearance of HBeAg was independently associated with HBeAg levels at weeks 12 and 24,and with the HBeAg decline at week 24(P<0.05).The HBsAg response was independently associated with HBsAg,the HBsAg decline,HBeAg,the HBeAg decline at week 12,and HBsAg at week 24(P<0.05).Conclusion There was no significant correlation between the response to interferon(IFN)and cytokines during PEG-IFN *** changes in virological markers predicted the response to IFN after 48 weeks.

关键词： Chronic hepatitis B Cytokine Peginterferon HBsAg HBeAg

Energy-information trade-off induces continuous and discontinuous phase transitions in lateral predictive coding

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Science China(Physics,Mechanics & Astronomy) 2024年第6期67卷 79-85页

作者： Zhen-Ye huang Ruyi Zhou Miao huang hai-Jun Zhou Key Laboratory for Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China School of Optics and Photonics Beijing Institute of TechnologyBeijing 100081China Minjiang Collaborative Center for Theoretical Physics Minjiang UniversityFuzhou 350108China

Lateral predictive coding is a recurrent neural network that creates energy-efficient internal representations by exploiting statistical regularity in sensory ***,we analytically investigate the trade-off between information robustness and energy in a linear model of lateral predictive coding and numerically minimize a free energy *** observed several phase transitions in the synaptic weight matrix,particularly a continuous transition that breaks reciprocity and permutation symmetry and builds cyclic dominance and a discontinuous transition with the associated sudden emergence of tight balance between excitatory and inhibitory *** optimal network follows an ideal gas law over an extended temperature range and saturates the efficiency upper bound of energy *** results provide theoretical insights into the emergence and evolution of complex internal models in predictive processing systems.

关键词： predictive coding recurrent neural network phase transition internal model free energy

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Design optimization of a hexapod vibration isolation system for electro-optical payload

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Chinese Journal of Aeronautics 2024年第2期37卷 330-342页

作者： Jing LI Weipeng LI Xiaoyan ZHANG hai huang School of Astronautics Beihang UniversityBeijing 100191China

The electro-optical payloads on mobile platforms generally suffer undesirable vibrations generated by maneuvers and *** vibrations are in six degrees of freedom and cause line-of-sight jitters,resulting in image blurring and loss of tracking *** this paper,a Hexapod Vibration Isolation System(HVIS)is proposed and optimized to solve this *** optimization aims to centralize and minimize the natural frequencies of HVIS,for expanding the vibration isolation bandwidth and improving the vibration isolation in the higher frequency *** that the design space for HVIS is limited and interfered with the frames of the mobile platform,a non-collision algorithm is proposed and applied in the optimization to obtain the feasible optimal *** optimization result shows that the natural frequency bandwidth has been reduced by 42.9%,and the maximum natural frequency is reduced by 30.2%.The prototypes of initial and optimal designs are manufactured and *** simulated and experimental results demonstrate the validity of the optimization,and the optimal design provides a maximum of 15 dB more isolation in rotation direction than the initial design.

关键词： Electro-optical payload Vibrations Isolation system Hexapod Optimization Non-collision design

Transfer of Highest Weight Modules and Small Unipotent Representations

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Acta Mathematica Sinica,English Series 2024年第3期40卷 772-791页

作者： hai An HE Jing Song huang Kayue Daniel WONG Department of Mathematics College of SciencesShanghai UniversityShanghai 200444P.R.China Newtouch Center for Mathematics of Shanghai University Shanghai 200444P.R.China Mathematics Research Center School of Science and EngineeringThe Chinese University of Hong KongShenzhen 518172P.R.China

We study the transfer between small special unipotent representations for all equal rank real forms of type E_(6) and E_(7). As a consequence, one can verify these modules are unitarity using the results of Wallach an... 详细信息

关键词： Unipotent representations Wallach representations Transfer of unitary modules

广西甘蔗褐条病病原菌鉴定与杀菌剂敏感度测定

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西南农业学报 2024年第4期37卷 816-823页

作者：陈潇航张小秋黄海荣宋修鹏李文教梁永检雷敬超王泽平祝光湖刘期怀李翔颜梅新广西农业科学院甘蔗研究所/中国农业科学院甘蔗研究中心/农业农村部广西甘蔗生物技术与遗传改良重点实验室/广西甘蔗遗传改良重点实验室南宁530007 百色市农业科学研究所/广西农业科学院百色分院/国家糖料产业技术体系百色综合试验站广西百色533612 广西南亚热带农业科学研究所广西崇左532415 广西应用数学中心/桂林电子科技大学广西桂林541004

[目的]明确广西甘蔗褐条病的致病菌,为科学有效防控甘蔗褐条病提供参考依据。[方法]利用植物组织分离法从广西甘蔗褐条病发病植株中分离纯化菌株,通过致病性测定、形态学观测及rDNA-ITS、GAPDH、LSU和EF-1α多基因系统发育分析鉴定病原... 详细信息

[目的]明确广西甘蔗褐条病的致病菌,为科学有效防控甘蔗褐条病提供参考依据。[方法]利用植物组织分离法从广西甘蔗褐条病发病植株中分离纯化菌株,通过致病性测定、形态学观测及rDNA-ITS、GAPDH、LSU和EF-1α多基因系统发育分析鉴定病原菌,并在室内使用菌丝生长速率法测试该病原菌对9种杀菌剂的敏感度。[结果]从甘蔗褐条病病叶中分离出1株病原真菌,编号为GHT-01,其菌落呈棕色或黑色,有少量白色气生菌丝;孢子单生或丛生,直或略弯曲,孢子为3隔4细胞,第3个细胞相较其他细胞更大、颜色更深,分生孢子大小为12.3~24.1μm×5.2~12.8μm;多位点序列分析结果显示其与Curvularia lunata的模式菌株(CBS730.96,CBS157.34)聚为一支;科赫式法则(Koch’s rules)测定结果表明,病原菌接种健康新鲜甘蔗叶片后表现的症状及从接种发病的叶片上再分离获得的病原菌,其分生孢子形态特征均与最初分离到的病原菌菌株一致。因此,鉴定该病原菌为新月弯孢菌(***)。9种杀菌剂对该病原菌的室内敏感度测定结果表明,40%苯甲·吡唑醚乳油和45%咪鲜胺水乳剂对病原菌的抑菌效果较好,其抑制中浓度(EC_(50))分别为1.43和1.54μg/mL,60%唑醚·代森联水分散粒剂的抑菌效果较差,其EC_(50)达205.82μg/mL。[结论]在广西发生的甘蔗褐条病病原菌为新月弯孢菌,且为首次报道,筛选出对该病原菌抑菌效果较好的杀菌剂分别为40%苯甲·吡唑醚乳油和45%咪鲜胺水乳剂。

关键词：甘蔗褐条病分子检测药剂筛选

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XGCN:a library for large-scale graph neural network recommendations

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Frontiers of Computer Science 2024年第3期18卷 247-249页

作者： Xiran SONG Hong huang Jianxun LIAN hai JIN National Engineering Research Center for Big Data Technology and System Services Computing Technology and System LabCluster and Grid Computing LabSchool of Computer Science and TechnologyHuazhong University of Science and TechnologyWuhan 430074China Microsoft Research Asia Beijing 100080China

1 Introduction Graph Neural Networks(GNNs)have gained widespread adoption in recommendation systems,and nowadays there is a pressing need to effectively manage large-scale graph data[1].When it comes to large graphs,GNNs may encounter the scalability issue stemming from their multi-layer messagepassing ***,scaling GNNs has emerged as a crucial research area in recent years,with numerous scaling strategies being proposed.

关键词： scaling gained operations