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化工时刊 2022年第5期36卷 8-12页

作者：周川倪恨美朱兵余海华郭剑桥夏云飞许修杭东南大学化学化工学院江苏南京210096 江苏江南绝缘粉末有限公司江苏溧阳213371

水性聚氨酯因其良好的机械性能、环保无污染性和易于改性的特点,在皮革、涂料和黏合剂等领域应用广泛。但其易燃,因此提高水性聚氨酯的阻燃性大有必要。本文从添加型阻燃和反应型阻燃两方面阐述了近些年来国内外对水性聚氨酯阻燃改性的... 详细信息

水性聚氨酯因其良好的机械性能、环保无污染性和易于改性的特点,在皮革、涂料和黏合剂等领域应用广泛。但其易燃,因此提高水性聚氨酯的阻燃性大有必要。本文从添加型阻燃和反应型阻燃两方面阐述了近些年来国内外对水性聚氨酯阻燃改性的研究。

关键词：水性聚氨酯添加型阻燃法反应型阻燃法阻燃性能

Short-term wind speed forecasting bias correction in the Hangzhou area of China based on a machine learning model

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Atmospheric and Oceanic Science Letters 2023年第4期16卷 37-44页

作者： Yi Fang yunfei Wu Fengmin Wu Yan Yan Qi Liu Nian Liu Jiangjiang xia Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Key Laboratory of Regional Climate–Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijingChina Zhejiang Institute of Meteorological Sciences HangzhouChina 93110 Troops People's Liberation Army of ChinaBeijingChina

准确的风速预报具有重要的社会意义.在本研究中,使用名为WSFBC-XGB的XGBoost机器学习模型对中国浙江省杭州市自动气象站的短期风速预报误差进行校正.WSFBC-XGB使用本地数值天气预报系统的产品作为输入.将WSFBC-XGB校正的结果与传统MOS(... 详细信息

准确的风速预报具有重要的社会意义.在本研究中,使用名为WSFBC-XGB的XGBoost机器学习模型对中国浙江省杭州市自动气象站的短期风速预报误差进行校正.WSFBC-XGB使用本地数值天气预报系统的产品作为输入.将WSFBC-XGB校正的结果与传统MOS(模型输出统计)方法校正的结果进行了比较.结果表明:WSFBC-XGB预报风速的均方根误差(RMSE)/准确率(ACC)分别比NWP和MOS降低/提高了26.1%和7.64%/35.6%和7.02%;对于90%的站点WSFBC-XGB的RMSE/ACC均小于/高于MOS.此外,采用平均杂质减少法对WSFBC-XGB的可解释性进行分析,以帮助用户增加对模型的信任.结果表明:10米风速(47.35%),10米风的经向分量(12.73%),日循环(9.97%)和1000百帕风的经向分量(7.45%)是前4个最重要的特征.WSFBC-XGB模型将有助于提高短期风速预报的准确性,为大型户外活动提供支持.

关键词：机器学习极端梯度提升算法风速后处理平均杂质减少

建筑保温材料倾斜立面的水平贴壁火蔓延实验研究

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湖北理工学院学报 2020年第6期36卷 33-38页

作者：何灿马鑫王经纬万露露李旺李浩瀚刘天昊夏雲飞安徽建筑大学环境与能源工程学院安徽合肥230601 安徽建筑大学土木工程学院安徽合肥230601

对建筑保温材料变角度条件下(立面倾斜角度分别为15°,30°,45°,60°,75°和90°)的水平贴壁火蔓延行为特性进行了实验研究,以探求建筑倾斜外立面保温材料发生火灾时的燃烧性质。研究结果表明,随着倾斜角度增大,建筑板材两侧空气卷吸... 详细信息

对建筑保温材料变角度条件下(立面倾斜角度分别为15°,30°,45°,60°,75°和90°)的水平贴壁火蔓延行为特性进行了实验研究,以探求建筑倾斜外立面保温材料发生火灾时的燃烧性质。研究结果表明,随着倾斜角度增大,建筑板材两侧空气卷吸效应加强,火蔓延速率增大。在各倾斜角度条件下,燃烧后期均出现了倾斜的V型热解前锋,进一步加快燃烧,导致火蔓延过程中出现了熔融卷落现象,使火蔓延变得复杂,加大了建筑火灾的危害性。此外,在火蔓延过程中,火焰与倾斜面的夹角变小,预热面积增大,保温材料上侧温度始终高于下侧。该研究对倾斜立面的火灾安全评估具有一定的借鉴意义,可对建筑火灾防治起到协助作用。

关键词：倾斜立面保温材料水平火蔓延

侧向风速对聚氨酯材料水平逆流火蔓延实验探究

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太原学院学报（自然科学版） 2021年第2期39卷 24-29页

作者：李浩瀚马鑫王经纬万露露李旺何灿刘天昊夏云飞安徽建筑大学环境与能源工程学院安徽合肥230601 安徽建筑大学土木工程学院安徽合肥230601

针对建筑立面与环境风作用对聚氨酯保温材料的水平火蔓延行为进行探究。结果表明:风速对于高层建筑物上层的影响大于下层;熔融液滴落频率和质量随着风速的增加而增大,当风速越大时,火灾过程中会产生更加剧烈的熔融滴落现象,熔融滴的随... 详细信息

针对建筑立面与环境风作用对聚氨酯保温材料的水平火蔓延行为进行探究。结果表明:风速对于高层建筑物上层的影响大于下层;熔融液滴落频率和质量随着风速的增加而增大,当风速越大时,火灾过程中会产生更加剧烈的熔融滴落现象,熔融滴的随机滴落会引燃未燃区域,形成多火源火灾,火蔓延速度大大加快;水平火蔓延过程中,下侧辐射热通量始终大于上侧,但随着风速的增大,上下侧之间的热通量差值不断缩小。实验结论有助于进行高层建筑火灾事故分析,协助制定高层建筑火灾事故防治方案。

关键词：高层建筑环境风聚氨酯保温材料水平火蔓延

MiR-16-5p plays an inhibitory role in human non-small cell lung cancer through Fermitin family member 2

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BIOCELL 2021年第3期45卷 627-638页

作者： JUNQI GUO YUN YANG WEI ZHAO ZHONGHAI YAN xia YANG yunfei YAN RUIMIN HAO JINxia HU FEI JIAO Department of Biochemistry and Molecular Biology Binzhou Medical UniversityYantai264003China Key Laboratory of Tumor Molecular Biology in Binzhou Medical University Yantai264003China Department of Neurology Columbia UniversityNew York10032USA Department of Cardiology The People’s Hospital of Zhaoyuan CityYantai265400China

Increasing evidence indicates that aberrant expressions of some microRNAs are associated with cancer ***,the roles and biological mechanisms of miRNA-16-5p in human non-small cell lung cancer(NSCLC)are not to be well ***,we validated that the expression of miR-16-5p was decreased significantly in NSCLC samples and cell *** correlation between the clinicopathological features of NSCLC and the miR-16-5p expression showed that the expression of miR-16-5p in non-small cell lung cancer was linked with the advanced TNM stage,positive lymph node metastasis,with short overall survival(OS).Also,a negative correlation between miR-16-5p and Fermitin family member 2(FERMT2)was observed,implying there may be a potential link about their *** hypothesis was further confirmed by in-silico analysis and dual-luciferase reporter ***,we demonstrated that the transfections of miR-16-5p mimics could alter some biological characteristics of NSCLC cells remarkably accomplished by the expression variance of FERMT2 in vitro and in vivo ***,this study demonstrated that miR-16-5p,as a tumor suppression factor in NSCLC by targeting FERMT2,could serve as one promising biomarker in the prediction for NSCLC patients.

关键词： miR-16-5p Non–small-cell lung cancer(NSCLC) Fermitin family member 2(FERMT2) Apoptosis Invasion Overall survival(OS)

Predicting the grades of Astragali radix using mass spectrometrybased metabolomics and machine learning

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Journal of Pharmaceutical Analysis 2021年第5期11卷 611-616页

作者： Xinyue Yu Jingxue Nai Huimin Guo Xuping Yang xiaoying Deng xia Yuan yunfei Hua Yuan Tian Fengguo Xu Zunjian Zhang Yin Huang Key Laboratory of Drug Quality Control and Pharmacovigilance China Pharmaceutical UniversityMinistry of EducationNanjing210009China Department of Pharmaceutical Analysis School of PharmacyChina Pharmaceutical UniversityNanjing210009China Center for Biological Technology Anhui Agricultural UniversityHefei230036China

Astragali radix(AR,the dried root of Astragalus)is a popular herbal remedy in both China and the United *** commercially available AR is commonly classified into premium graded(PG)and ungraded(UG)ones only according to the *** uncover novel sensitive and specific markers for AR grading,we took the integrated mass spectrometry-based untargeted and targeted metabolomics approaches to characterize chemical features of PG and UG samples in a discovery set(n=16 batches).A series of five differential compounds were screened out by univariate statistical analysis,including arginine,calycosin,ononin,formononetin,and astragalosideⅣ,most of which were observed to be accumulated in PG samples except for astragalosideⅣ.Then,we performed machine learning on the quantification data of five compounds and constructed a logistic regression prediction ***,the external validation in an independent validation set of AR(n=20 batches)verified that the five compounds,as well as the model,had strong capability to distinguish the two grades of AR,with the prediction accuracy>90%.Our findings present a panel of meaningful candidate markers that would significantly catalyze the innovation in AR grading.

关键词： Astragali radix Metabolomics Machine learning Quality markers Prediction model

Estimation of PM2.5 Mass Concentration from Visibility

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Advances in Atmospheric Sciences 2020年第7期37卷 671-678页

作者： Denghui JI Zhaoze DENG xiaoyu SUN Liang RAN xiangao xia Disong FU Zijue SONG Pucai WANG yunfei WU Ping TIAN Mengyu HUANG Key Laboratory of Middle Atmosphere and Global environment Observation(LAGEO) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Key Laboratory of Regional Climate-Environment for Temperate East Asia(RCE-TEA) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Beijing Weather Modification Office Beijing 100089China xianghe Observatory of Whole Atmosphere Institute of Atmospheric PhysicsChinese Academy of SciencesXianghe 065400China University of Chinese Academy of Sciences Beijing 100049China

Aerosols in the atmosphere not only degrade visibility,but are also detrimental to human health and *** order to develop a method to estimate PM2.5 mass concentration from the widely measured visibility,a field campaign was conducted in Southwest China in January ***,ambient relative humidity(RH),PM2.5 mass concentrations and scattering coefficients of dry particles were *** the campaign,two pollution episodes,i.e.,from 4-9 January and from 10-16 January,were *** of the two episodes could be divided into two *** aerosol hygroscopicity was found during the first period,when RH was higher than 80%at most of the time,and sometimes even approached 100%.The second period experienced a relatively dry but more polluted condition and aerosol hygroscopicity was lower than that during the first *** empirical relationship between PM2.5 mass concentration and visibility(ambient aerosol extinction)under different RH conditions could thus be *** on the empirical relationship,PM2.5 mass concentration could be well estimated from visibility and *** method will be useful for remote sensing of PM2.5 mass concentration.

关键词： concentration. pollution visibility

不同风速对聚氨酯保温板材水平顺风火蔓延特性的影响

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湖南文理学院学报（自然科学版） 2020年第3期32卷 82-85页

作者：刘天昊方廷勇马鑫王经纬夏雲飞万露露李浩瀚李旺何灿安徽建筑大学土木学院安徽合肥230601 安徽建筑大学环境与能源工程学院安徽合肥230601

利用聚氨酯保温板材燃烧实验平台和模拟环境风可调节风速的装置进行实验,研究了在6种不同风速环境影响下,聚氨酯保温板材(PU)水平顺风火蔓延的特性,获得了火焰前锋形态、火蔓延速率、质量损失速率以及燃烧率等重要特征参数。结果表明:... 详细信息

利用聚氨酯保温板材燃烧实验平台和模拟环境风可调节风速的装置进行实验,研究了在6种不同风速环境影响下,聚氨酯保温板材(PU)水平顺风火蔓延的特性,获得了火焰前锋形态、火蔓延速率、质量损失速率以及燃烧率等重要特征参数。结果表明:随着风速的不断增大,火蔓延速率和质量损失速率也随之增大,而板材的燃烧率却呈现出先增大后减小的变化趋势。

关键词：聚氨酯保温板材不同风速火蔓延燃烧率

Recent advances in emerging techniques for non-destructive detection of seed viability: A review

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Artificial Intelligence in Agriculture 2019年第1期1卷 35-47页

作者： Yu xia yunfei Xu Jiangbo Li Chi Zhang Shuxiang Fan Beijing Research Center of Intelligent Equipment for Agriculture Beijing 100097China National Research Center of Intelligent Equipment for Agriculture Beijing 100097China Key Laboratory of Agri-informatics Ministry of AgricultureBeijing 100097China Beijing Key Laboratory of Intelligent Equipment Technology for Agriculture Beijing 100097China College of Mechanical and Electronic Engineering Northwest A&F UniversityYanglingShaanxi 712100China

Over the past decades,imaging and spectroscopy techniques have been developed rapidly with widespread applications in non-destructive agro-food quality *** are one of themost fundamental elements of agriculture and *** viability is of great significance in seed quality characteristics reflecting potential seed germination,and there is a great need for a quick and effective method to determine the germination condition and viability of seeds prior to cultivate,sale and *** researches based on spectra and/or image processing and analysis have been explored in terms of the external and internal quality of a variety of *** attempts have been made in image segmentation and spectra correction methods to predict seed quality using various traditional and novel *** review focuses on the comparative introduction,development and applications of emerging techniques in the analysis of seed viability,in particular,near infrared spectroscopy,hyperspectral and multispectral imaging,Raman spectroscopy,infrared thermography,and soft X-ray imaging *** basic theories,principle components,relative chemometric processing,analytical methods and prediction accuracies are reported and ***,on the foundation of the observed applications,the technical challenges and future outlook for these emerging techniques are also discussed.

关键词： Seed viability NIR Hyperspectral imaging Raman spectroscopy Infrared thermography Soft X-ray imaging

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基于放疗流程的信息整合平台系统研发与应用

中华放射肿瘤学杂志 2017年第8期26卷 918-923页

作者：杨鑫何振宇姜晓勃林茂盛钟宁山胡江祁振宇包勇李巧巧黎宝月胡莲英林承光高远红刘慧黄晓延邓小武夏云飞刘孟忠孙颖华南肿瘤学国家重点实验室肿瘤医学协同创新中心中山大学肿瘤防治中心放疗科广州510060

目的结合国内实际需求与科室特有流程,系统开发放疗信息整合平台MOSAIQ Integration PlatformCHN （MIP）。方法 MIP采用C/S架构模式,后台数据库基于计划系统和MOSAIQ 数据库,独立运行在医院局域网络上。该系统硬件的5台网络服务器,... 详细信息

目的结合国内实际需求与科室特有流程,系统开发放疗信息整合平台MOSAIQ Integration PlatformCHN （MIP）。方法 MIP采用C/S架构模式,后台数据库基于计划系统和MOSAIQ 数据库,独立运行在医院局域网络上。该系统硬件的5台网络服务器,运行基于“云服务”搭建的数据存储和网络服务平台;该系统软件基于Microsoft Visual Studio平台开发,使用C#网络编程语言编写。约200台网络工作站,可并行进行数据录入、查询、统计和打印等操作。结果 MIP具有公告、预约、计费、单据管理（申请、执行）和系统管理等15个核心功能模块,已基本涵盖整个放疗流程。截至 2016年6月已接诊患者13546人、计划申请单13533张、实施放疗15475人次、结束小结14656人次、收费记录567048条、工作量记录506612例。结论 MIP操作直观,实时性强,数据安全,运行稳定,是放疗信息化建设的重要组成部分;数字化、无纸化便于检索和统计,各类数据便于信息共享和科室管理。后续还可根据新的需求,及时对其进行必要更新和完善。

关键词：放射疗法信息管理系统电子病历