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	1. Kinetics and FTIR characteristics of poplar wood pyrolysis process
	WANG Wenliang,REN Xueyong,CHANG Jianmin,GOU Jinsheng,CHE Yanzhe
	Forestry 05 July 2012
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	Abstract:The pyrolysis characteristics of poplar wood residues were investigated in a thermogravimetric analyzer coupled to a Fourier Transform Infrared Spectrometer (TG-FTIR). The pyrolysis process can be subdivided into four stages at 10 ℃/min varied from 30 to 650℃. A weight loss for drying and preheating the sample is below 180℃ and the onset temperature of initial pyrolysis is in the range of 180~260 ℃. A significant mass loss of 61.4wt.% occurred between 260~380℃ and it is followed by a slow and continuous mass change with lignin devolatilization. The analysis of kinetic reactions showed that the activation energy (78.29 kJomol-1) in low temperature section is much larger than that (6.40 kJomol-1) in high temperature section. The evolved gases formed by thermal degradation of poplar wood were simultaneously analyzed by FTIR. It is observed from the main peaks that the emissions evolved during poplar wood pyrolysis were acetic acid, carbon dioxide, carbon monoxide, methane, water, some volatile compounds of esters, alcohols and aldehydes. The emissions gradually increased with the increasing temperature before a strong peak around 360℃ and then decreased. Most gasous products were emitted in 320~380℃, while CO2 was continuously emitted from a wide range of 140~550℃.
	TO cite this article:WANG Wenliang,REN Xueyong,CHANG Jianmin, et al. Kinetics and FTIR characteristics of poplar wood pyrolysis process[OL].[ 5 July 2012] http://en.paper.edu.cn/en_releasepaper/content/4483870


	2. Seasonal development of cambium and secondary xylem in poplar
	XI Enhua,ZHAO Guangjie
	Forestry 15 May 2012
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	Abstract:In this paper the characteristics of cambium and the accumulation of secondary xylem cells of fast-growing Populus×euramericana cv. '74 /76' are described using the traditional wood anatomy method during the active phase. The relationship between seasonal cambial activity and secondary xylem development are discussed. Results showed that the cambium presented a seasonal cyclical pattern of activity and dormancy. The accumulation of secondary xylem cells was closely related to the features of cambium, in particular to the layers of cambium.
	TO cite this article:XI Enhua,ZHAO Guangjie. Seasonal development of cambium and secondary xylem in poplar[OL].[15 May 2012] http://en.paper.edu.cn/en_releasepaper/content/4478641


	3. Fabrication of superhydrophobic spherical-like α-FeOOH films on the wood surface by a hydrothermal method
	WANG Chengyu,WANG Shuliang,LIU Changyu,LI Jian
	Forestry 08 January 2012
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	Abstract:The superhydrophobic spherical-like α-FeOOH films on the wood surface was obtained from ferric sulfate and urea by a hydrothermal reaction process followed by a self-assembly of Octadecyltrichlorosilane (OTS) monolayer. The microstructure, chemical state and composition of the products were observed by scanning electron microscope (SEM), X-rad diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and Energy disperse X-ray analysis (EDX). The hydrophobic property of the treated samples was described by static water contact angles (CAs) and sliding water contact angles (SA) measurement. The stability under ambient condition and durability for corrosive liquid of the surperhydrophobic samples were also investigated in this paper. An analytical characterization revealed that the spherical-like α-FeOOH films with micro-nano structure uniformly deposited on the wood surface and OTS molecules combined with α-FeOOH films. The water contact angle of the as-prepared samples reached as high as 158 and the sliding angle was about 4 . The prepared superhydrophobic wood surface still maintained the superhydrophobic property when stored under ambient condition for three months or immersed in a sodium hydroxide solution of pH 12 and a hydrochloric acid solution of pH 2 for 2 hours at room temperature.
	TO cite this article:WANG Chengyu,WANG Shuliang,LIU Changyu, et al. Fabrication of superhydrophobic spherical-like α-FeOOH films on the wood surface by a hydrothermal method[OL].[ 8 January 2012] http://en.paper.edu.cn/en_releasepaper/content/4460608


	4. Synthesis of mesoporous ZnO by direct precipitation with Lignin-phosphate quaternary ammonium salt
	Yuanru Guo,Fangdan Yu,Qingjiang Pan,Guizhen Fang
	Forestry 08 January 2012
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	Abstract:In this paper，Mesoporous-ZnO crystals were prepared in aqueous solutions with Lignin-based surfactant(Lignin-phosphate quaternary ammonium salt，LPAS) by one step. X-ray diffraction(XRD) studies show that fine hexagonal wurtzite ZnO particles can be obtained with diameter of 20-40nm. SEM studies reveal that different concentrations of LPAS can affect the Morphology of ZnO. The ball particles can be obtained by low concentration of LPAS. TEM give the evidence that mosopores are found in ZnO crystals and with the average pore size of 36nm according to the Brunauer-Emmett-Teller (BET) measurement.
	TO cite this article:Yuanru Guo,Fangdan Yu,Qingjiang Pan, et al. Synthesis of mesoporous ZnO by direct precipitation with Lignin-phosphate quaternary ammonium salt[OL].[ 8 January 2012] http://en.paper.edu.cn/en_releasepaper/content/4460560


	5. Meso-scale experimental Investigation and strain fields analysis of tensile tests on microtomed slices of Picea jezoensis Carr. Var. microsperma sample
	Gong Cuizhi,Liu Yixing
	Forestry 04 January 2011
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	Abstract:In this study, tensile tests parallel to the grain were carried out on LV mode in an Environmental Scanning Electron Microscope (ESEM) chamber on microtomed slices of Picea jezoensis Carr. Var. microsperma sample. The digital video files(AVI) and a group of TIFF files were recorded for dynamic experiments performed with ESEM while load-displacement diagrams were described, simultaneously. Displacement and strain fields for different load levels under proportion limit were obtained from Digital Image Correlation Method (DICM) . Heterogeneous meso-scale structural influence on mechanical properties of wood were analysed.
	TO cite this article:Gong Cuizhi,Liu Yixing. Meso-scale experimental Investigation and strain fields analysis of tensile tests on microtomed slices of Picea jezoensis Carr. Var. microsperma sample[OL].[ 4 January 2011] http://en.paper.edu.cn/en_releasepaper/content/4403759


	6. Non-destructive Testing of Wood Composites based on Virtual Instrument
	Zhu Xiaodong,Wang Fenghu,Cao Jun
	Forestry 01 December 2010
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	Abstract:In this paper，a suit of wood-based composite nondestructive virtual instrument system based on Labview was designed. The sample of poplar Laminated Veneer Lumber was used to discuss the feasibility of the applications of virtual instrument in the wood-based composite nondestructive test. The main results are as follows: the longitudinal resonance elasticity modulus that was measured by virtual instrument can be the token of conventionality static elasticity modulus and FFT because they had prominent correlation under the level of 0.01.
	TO cite this article:Zhu Xiaodong,Wang Fenghu,Cao Jun. Non-destructive Testing of Wood Composites based on Virtual Instrument[OL].[ 1 December 2010] http://en.paper.edu.cn/en_releasepaper/content/4394359


	7. In vitro fermentation characterization of low concentration of xylooligosaccharides prepared from corncob xylan by Bifidobacterium adolescentis
	Zhang Junhua,Zhang XiaoPing,Yong Qiang ,Xu Yong ,Yu Shiyuan
	Forestry 15 January 2009
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	Abstract:In vitro fermentation characterization of low concentration of XOS by Bifidobacterium adolescentis was investigated. Cell growth, decrease in pH value and formation of organic acids were presented when XOS, glucose and arabinose were used as the sole carbon source respectively. The maximal biomasses were 0.43, 0.52 and 0.16 g L-1 when B. adolescentis fermented on 3 g L-1 XOS, glucose and arabinose respectively. It was deduced that XOS had better proliferation capability of B. adolescentis than arabinose, but less than glucose. When XOS were fermentated by B. adolescentis, X2 and X3 decreased rapidly and the pH value of the medium dropped rapidly after 18 h of fermentation due to the production of organic acids. Lactic and acetic acids were the main metabolites. Our result confirmed that low concentration XOS also had good prebiotic effects including proliferation capability of B. adolescentis and acidification ability to culture media.
	TO cite this article:Zhang Junhua,Zhang XiaoPing,Yong Qiang , et al. In vitro fermentation characterization of low concentration of xylooligosaccharides prepared from corncob xylan by Bifidobacterium adolescentis[OL].[15 January 2009] http://en.paper.edu.cn/en_releasepaper/content/27910

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