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A global terrestrial ecosystem respiration dataset(2001-2010)estimated with MODIS land surface temperature and vegetation indices

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Big Earth Data 2020年第2期4卷 142-152页

作者： Jinlong Ai Shuyuan Xiao hui Feng huan Wang gensuo jia.yonghong hu Department of Biology and Information Engineering Yiyang Vocational&Technical CollegeYiyangChina Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Key Laboratory of Digital Earth Science Aerospace Information Research InstituteChinese Academy of SciencesBeijingChina

This paper describes how a validated semi-empirical,but physiologically based,remote sensing model-Ensemble_all-was upscaled using MODIS land surface temperature data(MOD11C2),enhanced vegetation indices(MOD13C1)and land-cover data(MCD12C1)to produce a global terrestrial ecosystem respiration data set(Reco)for January 2001-December *** temporal resolution of this data set is 1 month,the spatial resolution is 0.05°,and the range is from 55°S to 65°N and 180°W to 180°E(crop and natural vegetation mosaic is not included).After crossvalidating our data set using in-situ observations as well as Reco outputs from an empirical variable_Q10 model,a LPJ_S1 process model and a machine learning method model,we found that our data set performed well in detecting both temporal and spatial patterns in Reco’s simulation in most ecosystems across the *** data set can be found at http://***/10.11922/sciencedb.934.

关键词： Terrestrial ecosystem respiration MODIS data product up-scaling remote sensing model

Biliary spontaneous dislodgement spiral stent for short-term biliary drainage in patients undergoing complete stone removal:A randomized controlled study

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Chinese Medical Journal 2024年第11期137卷 1363-1365页

作者： Liansong Ye Lifan Zhang Yi Mou Xianglei Yuan Wei Liu Chuncheng Wu yonghong Luo jiang Du Shuai Bai jia Xie Qiongying Zhang Qinghua Tan Ling Liu Bing hu Department of Gastroenterology and Hepatology West China HospitalMed-X Center for MaterialsSichuan UniversityChengduSichuan 610041China Digestive Endoscopy Medical Engineering Research Laboratory West China HospitalSichuan UniversityChengduSichuan 610041China West China School of Nursing Sichuan UniversityChengduSichuan 610041China

To the Editor:Endoscopic retrograde cholangiopancreatography(ERCP)is strongly recommended for stone removal of *** there is still risk of complications such as post-ERCP cholangitis(PEC)and post-ERCP pancreatitis(PEP).Biliary drainage including endoscopic nasobiliary drainage(ENBD)and biliary stent is considered to reduce the occurrence of PEC and ***,the ENBD tube will cause patient discomfort,and some patients may extract the tube by ***,additional endoscopic stent removal is required after insertion of conventional biliary stent for short-term biliary drainage,increasing medical costs.

关键词： biliary patients stent

生物基可闭环回收的高分子材料的研究及应用进展

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生物质化学工程 2024年第5期58卷 53-60页

作者：罗婷胡云张猛贾普友周永红中国林业科学研究院林产化学工业研究所江苏省生物质能源与材料重点实验室国家林业和草原局林产化学工程重点实验室林木生物质低碳高效利用国家工程研究中心江苏省林业资源高效加工利用协同创新中心江苏南京210042

以可再生的生物质为原料,设计合成可闭环回收的高分子材料,可以实现原料和高分子材料的可持续发展。本文概述了生物基可闭环回收高分子材料的发展和特性,从设计、合成、性能及应用等方面介绍了近几年来木质素、纤维素和植物油等生物基... 详细信息

以可再生的生物质为原料,设计合成可闭环回收的高分子材料,可以实现原料和高分子材料的可持续发展。本文概述了生物基可闭环回收高分子材料的发展和特性,从设计、合成、性能及应用等方面介绍了近几年来木质素、纤维素和植物油等生物基可闭环回收的高分子材料的研究进展,总结了其在3D打印、柔性电子材料、摩擦电纳米发电机、抗菌材料、太阳能蒸发器等方面的应用现状,并对生物基可闭环回收的高分子材料未来研究提出了建议。

关键词：类玻璃高分子生物基高分子化学回收动态共价键

Preparation and Characterization of Tung Oil Toughened Modified Phenolic Foams with Enhanced Mechanical Properties and Smoke Suppression

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Journal of Renewable Materials 2020年第5期8卷 535-547页

作者： Fei Song Puyou jia Caiying Bo Xiaoli Ren Lihong hu yonghong Zhou Institute of Chemical Industry of Forest Products Chinese Academy of ForestryNational Engineering Laboratory for Biomass Chemical UtilizationCo-Innovation Center of Efficient Processing and Utilization of Forest ResourcesKey Laboratory of Chemical Engineering of Forest ProductsNational Forestry and Grassland AdministrationKey Laboratory of Biomass Energy and MaterialsNanjing210042China Nanjing Forestry University Nanjing210037China

In this study,we prepared a series of tung oil phenolic foams(TPF)by a one-pot *** FT-IR and 1H NMR spectra confirm the successful Friedel-Crafts grafting of phenol to the long-chain alkyl group in tung *** TPFs exhibit enhanced mechanical properties,including compressive and flexural strengths of up to 0.278±0.036 MPa and 0.450±0.017 MPa,respectively,which represent increases of 68.75%and 86.72%over those of pure phenolic foam(PF).SEM spectra reveal the TPF microstructure to have uniform hexagonal cell morphology,narrower cell size distribution,and smaller mean cell size,suggesting enhanced mechanical *** TPF total smoke release decreased by 74.23%,indicating that the long alkyl chain significantly improves smoke suppression of the combusting ***,due to the flammability of the alkyl chains,the TPF limiting oxygen index decreases with increasing tung oil ***,TPF exhibits reduced thermal stability and high-temperature charring rate,elevated peak and mean heat release rates,and higher total heat release compared with pure ***,future research will focus on the use of tung oil modified flame retardant to provide more robust phenolic foams.

关键词： Tung oil Friedel-Craft reaction phenolic foams mechanical properties smoke suppression

Study on Toughening Phenolic Foams in Phosphorus-Containing Tung Oil-Based Derivatives

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Journal of Renewable Materials 2019年第10期7卷 1011-1021页

作者： Fei Song Puyou jia Yanan Xiao Caiying Bo Lihong hu yonghong Zhou Institute of Chemical Industry of Forest Products Chinese Academy of Forestry(CAF)National Engineering Laboratory for Biomass Chemical UtilizationCo-Innovation Center of Efficient Processing and Utilization of Forest ResourcesKey Laboratory of Chemical Engineering of Forest ProductsNational Forestry and Grassland AdministrationKey Laboratory of Biomass Energy and MaterialsNanjing210042China School of Petroleum and Chemical Engineering Dalian University of TechnologyDalian124221China

Phenolic foams(PFs)as thermal insulation material with outstanding flame retardancy are required to match society’s ever-expanding safety expectations;however,a trade-off exists between flame retardancy and ***,for the first time,we synthesized a novel reactive phosphorus-containing tung-oil-based derivative and used it to toughen PF,resulting in PFs with a combination of excellent mechanical properties and flame *** with pure PF,the modified PFs exhibit enhanced mechanical properties,with specific compressive and flexural strengths as high as 5.67 MPa and 12.46 MPa,which represent increases of 90.67%and 178.7%over those of pure PF,***,the limiting oxygen index(LOI)values of the modified PFs are improved as much as 40.83%.Scanning electron microscopy micrographs show that the microstructure of the modified PFs is better than that of pure PF,with a more uniform cell morphology,a narrower pore size distribution range,and a smaller average pore size,all of which are beneficial to the foam’s mechanical *** study provides a scientific paradigm for the development of advanced PFs based on renewable biological resources.

关键词： Tung oil phenolic foams toughen mechanical properties LOI

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近视父母与子女近视风险的Meta分析

眼科 2024年第5期33卷 368-376页

作者：宗晨曦胡健萍贾红艳焦永红首都医科大学附属北京同仁医院、北京同仁眼科中心、北京市眼科研究所、眼科学与视觉科学北京市重点实验室 100730

目的系统评价父母近视与子女近视风险之间的关系。设计Meta分析。研究对象46篇关于父母近视对子女近视影响的队列研究、病例对照研究和横断面研究。方法检索PubMed、Web of Science、Embase、中国知网、万方数据库、维普网、中国生物医... 详细信息

目的系统评价父母近视与子女近视风险之间的关系。设计Meta分析。研究对象46篇关于父母近视对子女近视影响的队列研究、病例对照研究和横断面研究。方法检索PubMed、Web of Science、Embase、中国知网、万方数据库、维普网、中国生物医学文献数据库、中华生物医学文献数据库、中华医学期刊全文数据库中从2000年1月至今2023年9月的关于父母近视对子女近视影响的研究。使用Cochrane手册对纳入文献进行偏倚风险评价及质量评价,并使用STATA 12.0软件进行Meta分析和偏倚检验。主要指标OR值。结果46篇文献共计纳入273376人,其中13项为队列研究,5项为病例对照研究,28项为横断面研究。Meta分析显示,父母中至少一方近视时的病例对照研究、队列研究、横断面研究,子女近视的OR值分别为1.73(95%CI,0.96~3.13)、2.05(95%CI,1.74~2.42)、2.51(95%CI,2.28~2.76);父母一方和双方近视时,子女近视的OR值分别为2.00(95%CI,1.84~2.18)、2.90(95%CI,2.46~3.42)。结论父母近视与儿童患近视的风险之间存在显著的正相关关系,父母一方或双方近视均会显著提高子女的近视风险,父母双方近视的子女相较于父母单方近视的子女近视风险更高。

关键词：近视父母近视 Meta分析

Synthesis and Application of UV-curable Phosphorous-Containing Acrylated Epoxidized Soybean Oil-based Resins

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Journal of Bioresources and Bioproducts 2019年第3期4卷 49-57页

作者： Yun hu Puyou jia Qianqian SHANG Meng ZHANG Guodong FENG Chengguo LIU yonghong ZHOU Institute of Chemical Industry of Forest Products Chinese Academy of ForestryKey Lab of Biomass Energy and MaterialJiangsu ProvinceNational Engineering Lab for Biomass Chemical UtilizationKey Lab on Forest Chemical EngineeringState Forestry AdministrationNanjing 210042China Co-Innovationof Efficient Processing and Utilization of Forest Resources Nanjing Forestry UniversityNanjing 210037China

A novel phosphorous-containing acrylated epoxidized soybean oil-based(P-AESO)resin was developed via the ring-opening reaction of epoxidized soybean oil(ESO)with diphenylphosphinic chloride(DPPC),followed by acrylation of the resulting *** chemical structure was characterized by Fourier transform infrared spectroscopy(FT-IR),and ^(1)H nuclear magnetic resonance(^(1)H NMR).Subsequently,the viscosity and volumetric shrinkage of the obtained P-AESO resins were *** the oligomer was formulated into UV-curable coatings,and the mechanical,thermal,and coating properties of the resulting UV-cured bioresins were studied by tensile testing,dynamic mechanical thermal analysis(DMA),thermogravimetric analysis(TGA)coupled with FT-IR spectroscopy(TGA-FT-IR),hardness,adhesion,pencil hardness and chemical ***,the UV-curing behavior of the P-AESO resin was determined by real-time realtime infrared(RT-IR).Meanwhile,compared with coating from acrylated epoxidized soybean oil(AESO),the P-AESO system coatings showed better volumetric shrinkage,excellent adhesion,and enhanced thermal and glass transition temperature(Tg)while maintaining reasonably final C=C conversions and cross-link *** instance,the obtained P-AESO/trimethylolpropanetriacrylate(TMPTA)20 material possessed a volumetric shrinkage of 4.1%,Tg of 115.6℃,char yield of 9.47%,and final C=C conversions of 81.4%respectively,which exhibited superior values than that of the AESO/TMPTA20 *** improvement of the P-AESO coating performances could contribute to the architectures that combined the structural features of phosphorous-containing rigid *** developed P-AESO resin is promising for applications in the UV-curable coatings.

关键词： biobased UV-curable coatings acrylated epoxidized soybean oil diphenylphosphinic chloride

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秦川牛成纤维细胞的分离培养体系优化

生物学杂志 2024年第2期41卷 110-115页

作者：冯贤辀陈辉贾永宏刘松奇温飞郭松茂韩帅琪胡建宏西北农林科技大学动物科技学院杨凌712100 陕西省畜牧产业试验示范中心泾阳713702 中国农业科学院北京畜牧兽医研究所北京100193

为建立秦川牛体细胞分离培养体系,分别选用组织块培养法、胰酶-胶原酶消化法和胶原酶-胰酶消化法提取秦川牛耳缘成纤维细胞。结果表明:组织块培养法获取成纤维细胞所需周期长,组织块贴壁17 d后可获得原代成纤维细胞,而双酶消化法在原代... 详细信息

为建立秦川牛体细胞分离培养体系,分别选用组织块培养法、胰酶-胶原酶消化法和胶原酶-胰酶消化法提取秦川牛耳缘成纤维细胞。结果表明:组织块培养法获取成纤维细胞所需周期长,组织块贴壁17 d后可获得原代成纤维细胞,而双酶消化法在原代细胞贴壁至9 d时便可进行传代纯化培养;与双酶消化法Ⅱ相比,双酶消化法I获得的原代成纤维细胞浓度1.24×10^(6)/mL显著高于双酶消化法Ⅱ(0.9×10^(6)/mL)(P<0.05);传代培养5 d后,细胞汇合度达到80%,取第三代成纤维细胞进行免疫荧光和流式细胞术鉴定,成纤维细胞纯度达到95%以上;纯化后的成纤维细胞培养至第3天,开始进入对数生长期,第8天时增殖速度下降进入平台期。因此,双酶消化法I(0.25%胰酶处理30 min,再用1%胶原酶处理60 min)为分离培养秦川牛耳缘成纤维细胞的最佳方法。

关键词：秦川牛皮肤组织成纤维细胞组织块培养法酶消化法

Interlayer sensitized van der Waals heterojunction photodetector with enhanced performance

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Nano Research 2023年第7期16卷 10537-10544页

作者： huide Wang yonghong Zeng FanXu Meng Rui Cao Yi Liu Zhinan Guo Tingting Wang Haiguo hu Sidi Fan Yatao Yang SWageh Omar AAl-Hartomy Abul Kalam yonghong Shao Yu-jia Zeng Dianyuan Fan Han Zhang International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology Institute of Microscale OptoelectronicsInterdisciplinary Center of High Magnetic Field Physics of Shenzhen UniversityCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Guangzhou Key Laboratory of Sensing Materials and Devices Center for Advanced Analytical ScienceSchool of Chemistry and Chemical EngineeringGuangzhou UniversityGuangzhou 510006China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China College of Electronics and Information Engineering Shenzhen UniversityShenzhen 518060China Center of Characterization and Analysis Jilin Institute of Chemical TechnologyJilin 132022China School of Mathematical&Physical Sciences Wuhan Textile UniversityWuhan 430200China Department of Physics Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia Research Center for Advanced Materials Science(RCAMS) King Khalid UniversityP.O.Box 9004Abha 61413Saudi Arabia Department of Chemistry College of ScienceKing Khalid UniversityP.O.Box 9004Abha 61413Saudi Arabia

Although photodetection based on two-dimensional(2D)van der Waals(vdWs)P-N heterojunction has attracted extensive attention recently,their low responsivity(R)due to the lack of carrier gain mechanism in reverse bias or zero bias operation hinders their applications in advanced photodetection ***,a black phosphorus/rhodamine 6G/molybdenum disulfide(BP/R6G/MoS_(2))photodiode with high responsivity at reverse bias or zero bias has been achieved by using interfacial charge transfer of R6G molecules assembled between heterojunction *** formed vdWs interface achieves high performance photoresponse by efficiently separating the additional photogenerated electrons and holes generated by R6G *** devices sensitized by the dye molecule R6G exhibit enhanced photodetection performance without sacrificing the photoresponse *** them,the R increased by 14.8-20.4 times,and the specific detectivity(D^(*))increased by 24.9-34.4 *** strategy based on interlayer assembly of dye molecules proposed here may pave a new way for realizing high-performance photodetection based on 2D vdWs heterojunctions with high responsivity and fast response speed.

关键词： heterojunction photodetector interlayer sensitization charge transfer responsivity