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Dropout Graph Product for Improved Relationship Discovery Across Multiple Heterogeneous Graphs

IEEE ACCESS 2021年 9卷 106340-106351页

作者： lang, xuwen Lin, Yanbin Qiu, Dehong Huazhong Univ Sci & Technol Sch Software Engn Wuhan 430074 Peoples R China

Relationship discovery across multiple heterogeneous graphs has recently attracted considerable interest. A major challenge is how to fuse and utilize the structure and properties of multiple heterogeneous graphs complementarily to improve relationship discovery between graph pairs where there are only a few observed relationships. In this paper, we seek to solve the problem through label propagation on dropout graph product. We first map multiple heterogeneous graphs onto a single homogeneous graph through graph product. The internal structure and properties of each individual graphs, as well as the observed inter-graph relationships across multiple graphs are fused losslessly via assigning edge weights and encoding node vectors of the graph product. As a result, the complex problem of relationship discovery across multiple heterogeneous graphs is transformed into a simple problem of node classification on homogeneous graph product. However, the size of graph product increases quickly with the size and the number of factor graphs, which leads to low accuracy and high computational cost. Dropout is therefore introduced to address this problem, which is applied to label propagation on graph product. Finally, we combine the results of a set of label propagations on different dropout graph products using a product of experts model. The proposed approach is characterized by flexibility in defining graph product, good generalization ability, high accuracy, and efficient computation. The experiments on real-world datasets show that the proposed approach significantly improves relationship discovery across multiple heterogeneous graphs, obtaining better results on the benchmark datasets than the baseline approaches.

关键词： Kernel Fuses Periodic structures Tensors Licenses Computational efficiency Benchmark testing Multiple graph fusion multi-entity relationship discovery dropout graph product label propagation

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The synthesis of an iron tailings-based geopolymer with synergistic electromagnetic wave consumption property

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ENVIRONMENTAL RESEARCH 2025年 268卷 120744页

作者： Wang, Tianyu Ning, xuwen Yang, lang Rao, Feng Jiang, Kaixi Fuzhou Univ Sch Mat Sci & Engn Fuzhou 350108 Fujian Peoples R China Fuzhou Univ Zijin Sch Geol & Min Fuzhou 350108 Fujian Peoples R China Fuzhou Univ Fujian Key Lab Green Extract & High Value Utilizat Fuzhou 350108 Fujian Peoples R China

In this study, combination of wave absorption materials with different loss mechanisms are added into iron ore tailings-blast furnace slag (IOT-BFS) based geopolymers. The employed materials are hollow glass microsphere (HGM), carbon nanotubes (CNT) and carbonyl iron powder (CIP). Microstructures of the geopolymers are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and concrete porous structure analyzer. Conductivity and electromagnetic absorption property of the geopolymers are measured by a conductivity tester and a vector network analyzer (VNA). As increasing the content of wave absorption materials, compressive strength of the geopolymer decreased from 60.5 to 33.8 MPa. Compared with geopolymers containing HGM and CNT, wave absorption band below -5 dB of the geopolymers with HGM and CIP was wider, particularly at frequencies below 7 GHz, due to the synergism of space and magnetic loss. Its absorption bandwidth with the reflection loss less than -5 dB reaches 15.6 GHz. This study gives a clue for preparation of geopolymers with satisfactory electromagnetic wave absorption properties in the utilization as construction materials.

关键词： Geopolymers Electromagnetic wave absorption Iron ore tailings Microstructure

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A novel electromagnetic wave absorption geopolymer originated from iron tailings and blast furnace slag

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MATERIALS AND STRUCTURES 2025年第1期58卷 1-14页

作者： Ning, xuwen Yang, lang Rao, Feng Wang, Tianyu Wu, Shengping Huang, Hanhui Fuzhou Univ Zijin Sch Geol & Min Fuzhou 350108 Fujian Peoples R China Zhiyong Construct Grp Co Ltd Fuzhou 350800 Fujian Peoples R China Fuzhou Univ Fujian Key Lab Green Extract & High Value Utilizat Fuzhou 350108 Fujian Peoples R China State Key Lab Mineral Proc Beijing 102628 Peoples R China Fujian JiangXia Univ Sch Engn Fuzhou 350108 Fujian Peoples R China Zhongke Chengfa Fujian Construct Grp Co Ltd Nanping 354105 Fujian Peoples R China Coll Civil Engn Fujian ChuanZheng Commun Coll Fuzhou 350007 Fujian Peoples R China

In this work, a novel electromagnetic wave absorption geopolymer was created with efficient utilization of two solid wastes iron tailings and blast furnace slag, meanwhile the mechanism and impacts of iron tailings content, water-solid ratio and specimen thickness on their electromagnetic wave absorption and mechanical property were systematically investigated. It was found the pores, micro-cracks and unreacted particles in the specimens are benefitial for electromagnetic wave absorption but against to compressive strength, even though the compressive strength reaches 69.7 MPa with the iron tailings content 50% and water-solid ratio 0.4. The addition of iron tailings significantly enhances the electromagnetic wave absorption properties of the geopolymers, and increasing iron tailings content improves the number of pores, micro-cracks and the permeability of geopolymers. The electromagnetic wave absorption properties of the geopolymer initially increase and then decrease with the increase of specimen thickness and water-solid ratio. With an iron tailings content 70%, water-solid ratio 0.4 and thickness 30 mm, the effective absorption bandwidth (< -5 dB) was optimized to 10.44 GHz with a minimum reflection loss of -13.34 dB. A new mechanism for electromagnetic absorption in iron tailings has been proposed, in which the electromagnetic wave absorption of geopolymers is mainly dominated by magnetic loss and spatial propagation loss. This study provides higher competitiveness and comprehensive utilisation of iron tailings in the field of electromagnetic wave absorbing building materials, and has great potential for applications in military and other fields affected by high electromagnetic wave frequencies.

关键词： Iron tailings Geopolymers Microwave absorption Reflectivity

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Preparation and properties of ceramic coated nitrogen-doped carbon coated SiOx anode materials for lithium-ion batteries

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APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 2025年第5期131卷 1-7页

作者： Zhou, Zhengyang Wen, Lijun Jin, Chenxin Hong, Junjie Liu, xuwen Xu, Guojun Sun, Fugen Li, Yong Zhou, lang Yue, Zhihao Nanchang Univ Inst Photovolta Nanchang 330031 Peoples R China Jiangxi Prov Key Lab Solar Photovolta Nanchang 330031 Peoples R China NCU GQC Inst PV HE ES Technol Gongqing 332020 Peoples R China Nanchang Univ Sch Phys & Mat Sci Nanchang 330031 Peoples R China

Nitrogen doping and carbon coating were identified to be two effective ways to alleviate the problems of silicon raw materials in our previous work. Building upon the foundation of this, a ceramic coating technique is introduced to further enhance the physical and electrochemical characteristics of nitrogen-doped carbon-coated silicon monoxide (N-doped SiOx@C) materials. This study explores the application of alumina (Al2O3) and boehmite (AlOOH) powders as coating on the surface of N-doped SiOx@C materials to assess their effects. The outcomes demonstrate that AlOOH coating surpasses Al2O3 coating in terms of wettability and liquid absorption capacity, leading to a reduction in the contact angle from 28 degrees to 20 degrees. Following 100 cycles at a current density of 1.05 Ag-1, the capacity retention rate of AlOOH coated N-doped SiOx@C materials reaches 98.4%, whereas uncoated materials maintain a capacity retention rate of 91.4%. Notably, AlOOH coating significantly enhances the electrochemical performance of N-doped SiOx@C materials.

关键词： Ceramic coating Surface modification Silicon oxide materials Lithium ion batteries

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Discovering Dependence across Traffic Data of Disparate Regions Using Multiscale Generalized Correlation 2018

Discovering Dependence across Traffic Data of Disparate Regi...

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6th International Conference on Information Technology - IoT and Smart City (ICIT)

作者： Qiu, Dehong Zhang, Pin Fang, Shaohong lang, xuwen Feng, Hao Huazhong Univ Sci & Technol Sch Software Engn Wuhan Hubei Peoples R China Wuhan Coll Sch Informat Engn Wuhan Hubei Peoples R China

ISBN: (纸本)9781450366298

Deciphering potential associations between the traffic data of disparate regions is of great importance to urban traffic management. However, as the traffic data is structured, temporal and often high-dimensional, many traditional dependence testing approaches are not directly applicable. In this paper, we propose a new approach to test dependence between traffic data of disparate regions based on distance Correlation (dCorr) and Multiscale Generalized Correlation (MGC). The distance matrix between the structured traffic data of disparate regions is defined, which yields a consistent test statistic for testing dependence of traffic data. We conduct experiments on the real and simulated datasets. The results of our experiments demonstrate that the new approach can capture the complex dependence between the structured traffic data of disparate regions. Simultaneously, it requires a small number of samples and is computationally efficient.

关键词： Traffic management network dependence graph distance distance correlation multiscale generalized correlation

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Decreased intestinal abundance of Akkermansia muciniphila is associated with metabolic disorders among people living with HIV

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ANNALS OF MEDICINE 2025年第1期57卷 2474730页

作者： Qian, Zhe Chen, Suling Liao, Xiaoyang Xie, Jingfang Xu, Yuyuan Zhong, Huiqun Ou, lang Zuo, Xiang Xu, xuwen Peng, Jie Wu, Jian Cai, Shaohang Southern Med Univ Guangdong Prov Peoples Hosp Guangdong Acad Med Sci Guangdong Prov Geriatr InstDept Elderly Resp 2 Guangzhou 510030 Peoples R China Southern Med Univ Nanfang Hosp Dept Infect Dis Guangzhou 510515 Peoples R China Southern Med Univ Guangdong Prov Peoples Hosp Guangdong Acad Med Sci Guangdong Prov Geriatr InstDept Geriatr Guangzhou Peoples R China Univ South China Affiliated Nanhua Hosp Dept Hepatobiliary Surg Hengyang Peoples R China Southern Med Univ Nanfang Hosp Dept Gen Surg Div Hepatobiliopancreat Surg Guangzhou Peoples R China South China Univ Technol Sch Med Guangzhou Peoples R China

BackgroundPrevious studies have shown changes in gut microbiota after human immunodeficiency virus (HIV) infection, but there is limited research linking the gut microbiota of people living with HIV (PLWHIV) to metabolic *** total of 103 PLWHIV were followed for 48 weeks of anti-retroviral therapy (ART), with demographic and clinical data collected. Gut microbiome analysis was conducted using metagenomic sequencing of fecal samples from 12 individuals. Nonalcoholic fatty liver disease (NAFLD) was diagnosed based on controlled attenuation parameter (CAP) values of 238 dB/m from liver fibro-scans. Participants were divided based on the presence of metabolic disorders, including NAFLD, overweight, and hyperlipidemia. Akkermansia abundance in stool samples was measured using RT-qPCR, and Pearson correlation and logistic regression were applied for *** sequencing revealed a significant decline in gut Akkermansia abundance in PLWHIV with NAFLD. STAMP analysis of public datasets confirmed this decline after HIV infection, while KEGG pathway analysis identified enrichment of metabolism-related genes. A prospective cohort study with 103 PLWHIV followed for 48 weeks validated these findings. Akkermansia abundance was significantly lower in participants with NAFLD, overweight, and hyperlipidemia at baseline, and it emerged as an independent predictor of NAFLD and overweight. Negative correlations were observed between Akkermansia abundance and both CAP values and body mass index (BMI) at baseline and at week 48. At the 48-week follow-up, Akkermansia remained a predictive marker for *** abundance was reduced in PLWHIV with metabolic disorders and served as a predictive biomarker for NAFLD progression over 48 weeks of ART.

关键词： HIV gut microbiota metabolic diseases NAFLD overweight Akkermansia muciniphila

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Electromagnetic wave absorption properties of red mud-blast furnace slag based geopolymers filled with various wave-absorption materials

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CONSTRUCTION AND BUILDING MATERIALS 2023年 404卷

作者： Wang, Tianyu Ning, xuwen Yang, lang Rao, Feng Jiang, Kaixi Fuzhou Univ Sch Mat Sci & Engn Fuzhou 350108 Fujian Peoples R China Fuzhou Univ Zijin Sch Geol & Min Fuzhou 350108 Fujian Peoples R China Fuzhou Univ Fujian Key Lab Green Extract & High value Utilizat Fuzhou 350108 Fujian Peoples R China

In this work, red mud-blast furnace slag (RM-BFS) based geopolymers with excellent electromagnetic wave absorption property is synthesized through the incorporation of wave-absorption materials. The electromagnetic absorption property of geopolymer is characterized through the arched test, in which the reflection loss of specimens is tested by vector network analyzer (VNA). The microstructure and conductivity of geopolymers are characterized through scanning electron microscopy (SEM), concrete porous structure analyzer and conductivity tester. The crystalline phase and functional groups of geopolymers are characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Compared to Portland cement concrete (PCC), wave absorption band of the geopolymer is wider and the absorption peak in high frequency band is more intense. With the optimal addition of hollow glass microsphere (HGM), Fe2O3 and graphite particles, the absorption bandwidth with reflection loss less than -5 dB are 12.4, 7.7 and 8.1 GHz, and the maximum reflection loss are -9.4, -8.4 and -8.7 dB, respectively. This study might give a clue for preparation of geopolymers with high electromagnetic wave absorption properties.

关键词： Electromagnetic wave Compressive strength Microstructure Geopolymers Conductivity

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Amanita peptide toxin analysis: An innovative UPLC-MS/MS method utilizing Fe3O4-based magnetic adsorbent

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JOURNAL OF FOOD COMPOSITION AND ANALYSIS 2024年 131卷

作者： Jiang, Yifu lang, Le Zhang, Jingwen Ji, Yining Zhang, Chenglong Yang, Ruiqin Li, xuwen Peoples Publ Secur Univ China Sch Criminal Invest Beijing 100038 Peoples R China Jilin Univ Coll Chem Changchun 130021 Peoples R China Jilin Prov Prod Qual Supervis & Inspect Inst Changchun 130000 Peoples R China Jilin Univ Coll New Energy & Environm Changchun 130000 Peoples R China

This study combined the structural characteristics of amanita peptide toxins to prepare a Fe3O4/P4VPBA/PPy/ GO composite material as a magnetic solid-phase extraction adsorbent. The experimental results indicated that this adsorbent showed excellent selectivity for the extraction of amatoxins and phallotoxins from mushroom samples. Compared with traditional dispersive solid-phase extraction, this adsorbent enables rapid separation in the enrichment and elution recovery stages through the application of a magnetic field. Simultaneously, the study optimized the conditions for ultraperformance liquid chromatography-mass spectrometry (UPLC-MS/MS), ensuring both separation efficiency and accuracy while reducing the analysis time. The researchers established the MSPE-UPLC-MS/MS method for the determination of amanita peptide toxins in wild mushrooms. This method not only simplified and expedited the sample pretreatment process but also achieved qualitative and quantitative analyses in a short period, thus demonstrating high detection sensitivity and outstanding recovery rates. Furthermore, the developed method was successfully applied to analyze toxic mushrooms discovered in Nanjing, China. The potential for extensive utilization of this method is highlighted in the field of food analysis and detection.

关键词： Mushroom poisoning Amanita peptide toxins Magnetic solid -phase extraction UPLC-MS/MS Food analysis

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煤矸石的地质聚合反应资源化利用研究进展

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矿业研究与开发 2023年第12期43卷 206-213页

作者：方屹杨浪饶峰张凯铭宁旭文福州大学紫金地质与矿业学院福建福州350108 福建省新能源金属绿色提取与高值利用重点实验室福建福州350108

煤矸石是煤炭开采和洗选加工过程中产生的固体废弃物。煤矸石堆积不仅侵占大量土地面积,还造成水体、空气和土壤的污染,煤矸石的绿色规模化消纳迫在眉睫。针对煤矸石的物化性质、直接利用、提质利用和地质聚合反应利用进行了总结归纳,... 详细信息

煤矸石是煤炭开采和洗选加工过程中产生的固体废弃物。煤矸石堆积不仅侵占大量土地面积,还造成水体、空气和土壤的污染,煤矸石的绿色规模化消纳迫在眉睫。针对煤矸石的物化性质、直接利用、提质利用和地质聚合反应利用进行了总结归纳,并指出煤矸石的地质聚合反应利用是继普通硅酸盐水泥后的第二代绿色胶凝技术,兼具规模化消纳和高值化利用。系统介绍了地聚合物的制备原料、形成过程、反应特点和机理,以及在抗侵蚀材料、耐高温建材、固化重金属和放射性元素等主要场景中的应用。同时指出煤矸石的地质聚合反应资源化利用范围广,利用过程绿色且能耗低,但目前仍存在工业化试验少及规模化推广难等问题。旨在总结煤矸石资源化利用途径的最新研究,进一步为规模化绿色消纳煤矸石提供借鉴。

关键词：煤矸石地质聚合反应资源化利用绿色消纳

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铁尾矿在电磁吸波建筑材料中的研究进展

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硅酸盐通报 2023年第3期42卷 925-938页

作者：宁旭文杨浪饶峰孙传琳方屹张凯铭福州大学紫金地质与矿业学院福州350116 福建省新能源金属绿色提取与高值利用重点实验室福州350116

铁尾矿是我国大宗工业固废的主要组成部分,库存量大,若不加以处理,将会造成环境污染风险和二次资源浪费,如何高效资源化利用铁尾矿是安全消纳大宗工业固废的重要保障。本文基于铁尾矿的基本性质和利用途径,以及电磁吸波原理,主要介绍了... 详细信息

铁尾矿是我国大宗工业固废的主要组成部分,库存量大,若不加以处理,将会造成环境污染风险和二次资源浪费,如何高效资源化利用铁尾矿是安全消纳大宗工业固废的重要保障。本文基于铁尾矿的基本性质和利用途径,以及电磁吸波原理,主要介绍了铁尾矿及其改性电磁吸波材料研究,以及铁尾矿在水泥基吸波混凝土和地质聚合物吸波胶凝材料中的研究,着重阐述了铁尾矿在水泥基混凝土中的吸波性能和机理研究进展,探讨了通过地质聚合反应制备铁尾矿基地质聚合物吸波混凝土的可行性及其性能,可为铁尾矿基地质聚合物在多功能建筑材料方面的应用提供借鉴,为提高铁尾矿固废资源的综合利用率,解决尾矿堆积、环境污染等问题提供解决思路。本文旨在总结铁尾矿在吸波建筑材料的研究进展并进一步推动地质聚合物吸波建筑材料的发展。

关键词：铁尾矿电磁吸波混凝土综合利用地质聚合反应反射率

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