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  • 收录类型=EI x
  • 人物=郭娟 x

34 条 记 录,以下是 1-30

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Effects of ultrasonic treatment during acid hydrolysis on the yield, particle size and structure of cellulose nanocrystals被引量:128收藏 分享
作者:Guo, Juan[1,2] Guo, Xuxia[1] Wang, Siqun[1,3] Yin, Yafang[1,2]
机构:Chinese Acad Forestry;Chinese Acad Forestry;Univ Tennessee
来源:CARBOHYDRATE POLYMERS  2016
关键词:Cellulose nanocrystals   Ultrasonic treatment   Crystal size   Raman spectrum   Fourier transform infrared spectra  
Changes of wood cell walls in response to hygro-mechanical steam treatment被引量:114收藏 分享
作者:Guo, Juan[1] Song, Kunlin[1] Salmen, Lennart[2,3] Yin, Yafang[1,2]
机构:Chinese Acad Forestry;Royal Inst Technol KTH;Innventia AB
来源:CARBOHYDRATE POLYMERS  2015
关键词:Cell wall   Hygro-mechanical steam treatment   Earlywood   Latewood   Biopolymer components  
Heterogeneously Modified Cellulose Nanocrystals-Stabilized Pickering Emulsion: Preparation and ThEIr Template Application for the Creation of PS Microspheres with Amino-Rich Surfaces被引量:70收藏 分享
作者:Du, Wenbo[1,2] Guo, Juan[3,4] Li, Huaming[1,2] Gao, Yong[1,2]
机构:Xiangtan Univ;Coll Hunan Prov;Chinese Acad Forestry;Chinese Acad Forestry
来源:ACS SUSTAINABLE CHEMISTRY & ENGINEERING  2017
关键词:ellulose nanocrystals (CNCs)   Pickering emulsion   Reversible covalent bond   Template  
Effects of agEIng on the cell wall and its hygroscopicity of wood in ancient timber construction被引量:52收藏 分享
作者:Guo, Juan[1] Zhou, Haibin[1] Stevanic, Jasna S.[2] Dong, Mengyu[1] Yu, Min[1]
机构:Chinese Acad Forestry;Res Inst Sweden
来源:WOOD SCIENCE AND TECHNOLOGY  2018
关键词:Cellulose - Crystallinity - Crystallites - deterioration - Forestry - Fourier transform infrared spectroscopy - Glucose - Lignin - Moisture - Timber - Walls (structural partitions)  
Cellulose nanocrystals as water-in-oil Pickering emulsifiers via intercalative modification被引量:40收藏 分享
作者:Guo, Juan[1,2] Du, Wenbo[3] Gao, Yong[3] Cao, Yuan[4] Yin, Yafang[1,2]
机构:Chinese Acad Forestry;Chinese Acad Forestry;Xiangtan Univ;Chinese Acad Forestry
来源:COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS  2017
关键词:Cellulose nanocrystals   Intercalative modification   Pickering emulsion   degree of substitution   Hydroxyl group  
The influence of thermo-hygro-mechanical treatment on the micro- and nanoscale architecture of wood cell walls using small- and wide-angle X-ray scattering被引量:39收藏 分享
作者:Guo, Juan[1] Rennhofer, Harald[2] Yin, Yafang[1] Lichtenegger, Helga C.[2]
机构:Chinese Acad Forestry;Univ Nat Resources & Life Sci BOKU
来源:CELLULOSE  2016
关键词:Cellulose crystallites   Compression combined with steam treatment   Small-angle X-ray scattering   Wide-angle X-ray scattering   Earlywood   Latewood  
An injectable self-healing hydrogel-cellulose nanocrystals conjugate with excellent mechanical strength and good biocompatibility被引量:36收藏 分享
作者:Du, WenBo[1,2] Deng, Amin[1,2] Guo, Juan[4] Chen, Jian[3] Li, Huaming[1,2]
机构:Xiangtan Univ;Xiangtan Univ;Hunan Univ Sci & Technol;Chinese Acad Forestry
来源:CARBOHYDRATE POLYMERS  2019
关键词:Cellulose nanocrystals (CNCs)   Graft   Nanocomposite hydrogel   Reversible covalent bond   Self-healing  
Hygroscopicity of Waterlogged Archaeological Wood from Xiaobaijiao No.1 Shipwreck Related to Its deterioration State被引量:28收藏 分享
作者:Han, Liuyang[1,2] Guo, Juan[1,2] Wang, Kun[3] Gronquist, Philippe[4,5] Li, Ren[1,2]
机构:Chinese Acad Forestry;Chinese Acad Forestry;Beijing Forestry Univ;Swiss Fed Inst Technol;Empa
来源:POLYMERS  2020
关键词:morphological structure   sorption behavior   sorption fitting model   compositional analysis   hydroxyl accessibility  
Evaluation of the deterioration State of Archaeological Wooden Artifacts: A Nondestructive Protocol based on Direct Analysis in Real Time - Mass Spectrometry (DART-MS) Coupled to Chemometrics被引量:28收藏 分享
作者:Guo, Juan[1] Zhang, Maomao[1] Liu, Jian'an[2] Luo, Rupeng[2] Yan, Tingting[1]
机构:Chinese Acad Forestry;Zhejiang Prov Inst Cultural Rel & Archaeol;Chengdu Inst Cultural Rel & Archaeol
来源:ANALYTICAL CHEMISTRY  2020
关键词:Dimers - Discriminant analysis - Ions - Least squares approximations - Lignin - Mass spectrometry - Wood preservation  
DNA barcoding authentication for the wood of EIght endangered Dalbergia timber species using machine learning approaches被引量:25收藏 分享
作者:He, Tuo[1,2] Jiao, Lichao[1,2] Yu, Min[1,2] Guo, Juan[1,2] Jiang, Xiaomei[1,2]
机构:Chinese Acad Forestry;Chinese Acad Forestry
来源:HOLZFORSCHUNG  2019
关键词:Dalbergia timber species   DNA barcoding   illegal logging   machine learning approaches (MIAs)   reference library   SMO classifier   wood identification  
Evaluation of PEG and sugars consolidated fragile waterlogged archaeological wood using nanoindentation and ATR-FTIR imaging被引量:22收藏 分享
作者:Han, Liuyang[1,2,3] Guo, Juan[2,3] Tian, Xingling[4] Jiang, Xiaomei[2,3] Yin, Yafang[2,3]
机构:Univ Sci & Technol Beijing;Chinese Acad Forestry;Wood Collect Chinese Acad Forestry;Chinese Acad Cultural Heritage
来源:INTERNATIONAL BIODETERIORATION & BIODEGRADATION  2022
关键词:Waterlogged archaeological wood   Micromechanical property   Morphological structure   Thermogravimetric analysis   The Xiaobaijiao I shipwreck  
Nanomechanical and Topochemical Changes in Elm Wood from Ancient Timber Constructions in Relation to Natural Aging被引量:20收藏 分享
作者:Han, Liuyang[1] Wang, Kun[2] Wang, Weibin[3] Guo, Juan[1] Zhou, Haibin[1]
机构:Chinese Acad Forestry;Beijing Forestry Univ;Shanxi Ancient Bldg Maintenance Qual Supervis Stn
来源:MATERIALS  2019
关键词:timber buildings   aged wood   nanoindentation (NI)   Raman spectra  
Timber species identification from chemical fingerprints using direct analysis in real time (DART) coupled to Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS): comparison of wood samples subjected to different treatments被引量:17收藏 分享
作者:Zhang, Maomao[1,2,3] Zhao, Guangjie[3] Guo, Juan[1,2] Wiedenhoeft, Alex C.[4,5] Liu, Charles C.[6]
机构:Chinese Acad Forestry;Chinese Acad Forestry;Beijing Forestry Univ;US Forest Serv;Univ Wisconsin
来源:HOLZFORSCHUNG  2019
关键词:air-dried wood chips   DART-FTICR-MS   metabolomics analysis   OPLS-DA   species-level wood identification  
Thermoporometry of waterlogged archaeological wood: Insights into the change of pore traits after the water-removal by supercritical drying被引量:16收藏 分享
作者:Guo, Juan[1] Chen, Jiabao[1] Li, Ren[1] Liu, Jian'an[2] Luo, Rupeng[2]
机构:Chinese Acad Forestry;Zhejiang Prov Inst Cultural Rel & Archaeol
来源:THERMOCHIMICA ACTA  2022
关键词:Archaeological wood   Pore   Water-removal   DSC thermoporosimetry   N-2 adsorption   Mercury porosimetry  
Molecular and crystal structures of cellulose in severely deteriorated archaeological wood被引量:12收藏 分享
作者:Guo, Juan[1,2] Chen, Jiabao[1,2] Meng, Qiulu[1,2,3] Ploszczanski, Leon[4] Liu, Jian'an[5]
机构:Chinese Acad Forestry;Wood Collect Chinese Acad Forestry;Guangxi Univ;Univ Nat Resources & Life Sci;Zhejiang Prov Inst Cultural Rel & Archaeol
来源:CELLULOSE  0
关键词:Archaeological wood   Cellulose   Molecular structure   Crystal structure   X-ray scattering  
Non-destructive preservation state estimation of waterlogged archaeological wooden artifacts被引量:11收藏 分享
作者:Chen, Jiabao[1,2] Liu, Shoujia[1,2] Yin, Lijuan[1,2] Cao, Huimin[1] Xi, Guanglan[3,4]
机构:Chinese Acad Forestry;Chinese Acad Forestry;Natl Ctr Archaeol;Univ Sci & Technol Beijing;Zhejiang Prov Inst Cultural Rel & Archaeol
来源:SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY  2023
关键词:Waterlogged archaeological wood   NIR   Preservation state   Softwood   Hardwood   Non-destructive  
Changes in Moisture Characteristics of Waterlogged Archaeological Wood Owing to Microbial degradation被引量:11收藏 分享
作者:Cao, Huimin[1,2] Gao, Xin[1] Chen, Jiabao[1] Xi, Guanglan[3] Yin, Yafang[1]
机构:Chinese Acad Forestry;Beijing Forestry Univ;Natl Ctr Archaeol
来源:FORESTS  2023
关键词:waterlogged archaeological wood   moisture characteristics   fiber saturation point   pore size distribution   NMR  
A novel constitutive model for the porosity related super-large deformation and anisotropic behavior of wood under perpendicular to grain compression被引量:8收藏 分享
作者:Zhong, Yong[1] Wu, Guofang[1] Fu, Feng[1] Shen, Yinlan[2] Sun, Jingcheng[1]
机构:Chinese Acad Forestry;Beijing Univ Technol
来源:WOOD SCIENCE AND TECHNOLOGY  2022
关键词:Anisotropy - Compaction - Compression testing - Constitutive models - deformation - Porosity  
Cellulose nanocrystals: A layered host candidate for fabricating intercalated nanocomposites被引量:8收藏 分享
作者:Guo, Juan[1,2] Du, Wenbo[3] Wang, Siqun[1,4] Yin, Yafang[1,2] Gao, Yong[3]
机构:Chinese Acad Forestry;Chinese Acad Forestry;Xiangtan Univ;Univ Tennessee
来源:CARBOHYDRATE POLYMERS  2017
关键词:Cellulose nanocrystals   Intercalation   X-ray diffraction   Molecular structure   Thermal properties  
Ray Traits of Juvenile Wood and Mature Wood: Pinus massonia and Cunninghamia lanceolata被引量:8收藏 分享
作者:Meng, Qiulu[1,2,3] Fu, Feng[2] Wang, Jie[2,3] He, Tuo[2,3] Jiang, Xiaomei[2,3]
机构:Guangxi Univ;Chinese Acad Forestry;Chinese Acad Forestry
来源:FORESTS  2021
关键词:conifer   wood anatomy   juvenile wood   mature wood   ray  
Preservation status and microbial community of waterlogged archaeological woods over 7800 years old at the Jingtoushan Site, China被引量:7收藏 分享
作者:Lu, Yang[1,2] Jiao, Lichao[1,2] Sun, Guoping[3] Wang, Jie[1,2] Liu, Shoujia[1,2]
机构:Chinese Acad Forestry;Natl Forestry & Grassland Adm;Zhejiang Prov Inst Cultural Rel & Archaeol
来源:WOOD SCIENCE AND TECHNOLOGY  2023
关键词:Bacteria - Cellulose - Wood  
Studies on pre-treatment by compression for wood impregnation II: the impregnation of wood compressed at different moisture content conditions被引量:7收藏 分享
作者:Zhao, Youke[1,2] Zhao, Xin[2] Iida, Ikuho[3] Guo, Juan[2]
机构:Chinese Acad Forestry;Chinese Acad Forestry;Kyoto Prefectural Univ
来源:JOURNAL OF WOOD SCIENCE  2019
关键词:Pre-treatment   Compression   Moisture content   Wood impregnation  
Can quantitative wood anatomy data coupled with machine learning analysis discriminate CITES species from thEIr look-alikes?被引量:6收藏 分享
作者:Liu, Shoujia[1,2] He, Tuo[1,2] Wang, Jiajun[1] Chen, Jiabao[1,2] Guo, Juan[1,2]
机构:Chinese Acad Forestry;Chinese Acad Forestry;USDA;Univ Wisconsin;Purdue Univ
来源:WOOD SCIENCE AND TECHNOLOGY  2022
关键词:Classifiers - Conservation - decision trees - Machine learning - Timber  
Studies on pre-treatment by compression for wood impregnation I: effects of compression ratio, compression direction, compression speed and compression-unloading place on the liquid impregnation of wood被引量:6收藏 分享
作者:Zhao, Youke[1,2] Wang, Zhihui[2] Iida, Ikuho[3] Guo, Juan[2]
机构:Chinese Acad Forestry;Chinese Acad Forestry;Kyoto Prefectural Univ
来源:JOURNAL OF WOOD SCIENCE  2018
关键词:Pre-treatment   Compression   Wood impregnation   Penetration  
Insights into asynchronous changes of cell wall polymers accumulated in different cell types during conifer xylem differentiation被引量:4收藏 分享
作者:Wang, Jie[1,2] Jia, Hao[3] Daniel, Geoffrey[4] Gao, Jie[4] Jiang, Xiaomei[1,2]
机构:Chinese Acad Forestry;Natl Forestry & Grassland Adm;Beihang Univ;Swedish Univ Agr Sci
来源:CARBOHYDRATE POLYMERS  2023
关键词:Xylem differentiation   Cambium   TrachEIds   Rays   Cell wall polymers  
Study of the Mechanical Properties of Wood under Transverse Compression Using Monto Carlo Simulation-Based Stochastic FE Analysis被引量:4收藏 分享
作者:Wu, Guofang[1] Shen, Yinlan[2] Fu, Feng[1] Guo, Juan[1] Ren, Haiqing[1]
机构:Chinese Acad Forestry;Beijing Univ Technol
来源:FORESTS  2022
关键词:wood   compression perpendicular to grain   Monte Carlo Simulation   finite element method   stochastic FE  
Similarity network fusion for aggregating headspace GC-MS and direct analysis in real time-mass spectrometry data from solid samples to enhance species identification efficiency of high-temperature heated wood被引量:3收藏 分享
作者:Zhang, Maomao[1,2,3] Guo, Juan[2,3] Lu, Yang[2,3] Jiao, Lichao[2,3] He, Tuo[2,3]
机构:Xian Univ Architecture & Technol;Chinese Acad Forestry;Chinese Acad Forestry
来源:JOURNAL OF WOOD SCIENCE  2022
关键词:Wood identification   Headspace-gas chromatography-mass spectrometry (HS-GC-MS)   Similarity network fusion (SNF)   High-temperature heated wood   Direct analysis in real time-mass spectrometry (DART-MS)  
Inter- and intra-growth ring variations of wood carbon fractions in Pinus tabuliformis被引量:1收藏 分享
作者:Wei, Yupei[1,2] Zheng, Chang[1,2] Ma, Lingyu[1,2] Jiang, Xiaomei[1,2] Yin, Yafang[1,2]
机构:Chinese Acad Forestry;Chinese Acad Forestry
来源:HOLZFORSCHUNG  2024
关键词:carbon fraction   earlywood and latewood   juvenile wood   mature wood   Pinus tabuliformis  
饱水考古木材保存状况评估研究进展被引量:0收藏 分享
作者:Liuyang, Han[1,2,3] Juan, Guo[2,3] Xiangna, Han[1] Guanglan, Xi[4] Xingling, Tian[5]
机构: Institute for Cultural Heritage and History of Science & Technology; Research Institute of Wood Industry; Wood Specimen Resource Center ; National Center for Archaeology; China Academy of Cultural Heritage
来源:[1] Institute for Cultural Heritage and History of Science & Technology, University of Science and Technology Beijing, Beijing, 100083, China; [2] Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, 100091, China; [3] Wood Specimen Resource Center [WOODPEDIA], National Forestry and Grassland Administration, Beijing, 100091, China; [4] National Center for Archaeology, Beijing, 100013, China; [5] China Academy of Cultural Heritage, Beijing, 100029, China  2024
木材定量解剖研究新进展被引量:0收藏 分享
作者:郭娟[1] 焦立超[1] 何拓[1] 马灵玉[1] 姜笑梅[1]
机构:中国林业科学研究院木材工业研究所、中国林业科学研究院木材标本馆、国家林业和草原局木材标本资源库
来源:《林业科学》  2025
关键词:次生木质部  木材解剖学  定量解剖  构造特征  高通量测试  
摘要:木材解剖学是研究木材(次生木质部)中各类细胞形态特征、排列、比量、结构和功能的一门科学。在木材解剖学框架内,开展木材构造特征定量化研究,实现木材解剖信息的定量提取、挖掘、整合与应用,科学构建木材构造特征与树种生理功能、气...
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