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Artykuły w czasopismach na temat „Wood structure”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Tumen, Ibrahim, Deniz Aydemir, Gokhan Gunduz, Birol Uner, and Hakan Cetin. "Changes in the chemical structure of thermally treated wood." BioResources 5, no. 3 (2010): 1936–44. http://dx.doi.org/10.15376/biores.5.3.1936-1944.

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Changes in the chemical structure of hornbeam and uludag fir woods during thermal treatment were investigated at three temperatures (170, 190, and 210 oC) and three durations (4, 8, and 12 hours). After thermal treatment, the extents of degradation in the chemical structure of the samples were determined, and the effects on the chemical composition of hornbeam wood and uludag fir wood were investigated. The data obtained were analyzed using variance analysis, and Tukey’s test was used to determine the changes in the chemical structure of uludag fir and hornbeam woods. The results showed that h

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2

Bohn Reckziegel, Rafael, Werner Mbongo, Anton Kunneke, et al. "Exploring the Branch Wood Supply Potential of an Agroforestry System with Strategically Designed Harvesting Interventions Based on Terrestrial LiDAR Data." Forests 13, no. 5 (2022): 650. http://dx.doi.org/10.3390/f13050650.

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Agroforestry systems hold potential for wood and tree biomass production without the need of felling trees. Branch wood harvesting provides access to considerable amounts of lignocellulosic biomass while leaving the tree standing. Aiming at alternatives for wood provision, we assessed the actual woody structure of a silvopastoral system in the African Savannah ecoregion, utilising terrestrial LiDAR technology and quantitative structure models to simulate branch removals and estimate harvesting yields. In addition, the stand structure and harvested wood were examined for the provision of four t

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3

Storodubtseva, Tamara. "Wood composite - improving its monolithic structure." Актуальные направления научных исследований XXI века: теория и практика 2, no. 3 (2014): 253–56. http://dx.doi.org/10.12737/3967.

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SUN, CHENGSHUO, KANG ZHOU, ZIRUI REN, YUTANG CHEN, and BIN NA. "STEAM-PRESSING MECHANISM OF LOW DENSITY MAGNESIA-BONDED WOOD-WOOL PANEL." Wood Research 67, no. 3 (2022): 437–46. http://dx.doi.org/10.37763/wr.1336-4561/67.3.437446.

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In this paper, wood-wool panel was prepared by steam pressing as opposed to the traditional cold-pressing and hot-pressing methods in order to eliminate the shortcomings of both methods. Cold pressed wood panels have low strength. The overall performance of heat pressed wood panel was poor. The water absorption of these two panels was too large. The steam pressing mechanism was studied by the means of X-ray diffraction and scanning electron microscope. The surface structure, moisture absorption and mechanical properties of wood-wool panel were investigated by experimental testing and numerical

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5

Obata, Yoshihiro, Kazutoshi Takeuchi, Kouichi Akaeda, and Kozo Kanayama. "Control of Grading Structure and Thermal Conductivity of Wood by Compressing Process." Materials Science Forum 492-493 (August 2005): 281–86. http://dx.doi.org/10.4028/www.scientific.net/msf.492-493.281.

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Compressed wood has different grading structure in an annual ring from one of natural wood. This paper treats the relationship between grading structures and effective thermal conductivity of natural and compressed woods. The Lorentz function and the power function are assumed as grading patterns of thermal conductivity. The grading thermal conductivity shows smaller effective thermal conductivity than the homogeneous wood with same average density. The sharper grading pattern gives much smaller effective thermal conductivity. The grading pattern of compressed wood is assumed as a model with l

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6

Yang, Dongxia, and Changsheng Fan. "The Mechanical Properties of Wood-Based Grid Sandwich Structures." Forests 13, no. 6 (2022): 877. http://dx.doi.org/10.3390/f13060877.

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In order to reduce the weight of the panels used in buildings and minimize the use of wood, it is of great practical significance to study the mechanical properties of wood-based sandwich structures for adaptation to modern wood-structured buildings. In this paper, a wood-based pyramid structure specimen with large interconnection space was designed and prepared first. Based on the results of the flat compression, in order to strengthen the core layer of the sandwich structure, an interlocking grid structure can be used. The mechanical properties of two kinds of structure specimens, including

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7

Ota, Toshitaka, Takahiro Eitsuka, Haruki Yoshida, and Nobuyasu Adachi. "Porous Apatite Ceramics Derived from Woods." Advanced Materials Research 11-12 (February 2006): 247–50. http://dx.doi.org/10.4028/www.scientific.net/amr.11-12.247.

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Porous calcium phosphate ceramics (apatite and TCP) with wood-like microstructures, analogous to that of silicified wood, were prepared from natural woods as templates. The production of these ceramic woods was performed by the following process: (1) infiltration with an ethanol solution containing tri-ethyl phosphate and calcium nitrate tetra-hydrate into wood specimens, (2) drying to form a calcium phosphate gel in the cell structure, (3) firing in air to form apatite and TCP. The microstructure of the obtained ceramic woods retained the same structure as that of the raw woods: with the pore

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8

Shen, Xiaoshuang, Pan Jiang, Dengkang Guo, Gaiyun Li, Fuxiang Chu, and Sheng Yang. "Effect of Furfurylation on Hierarchical Porous Structure of Poplar Wood." Polymers 13, no. 1 (2020): 32. http://dx.doi.org/10.3390/polym13010032.

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Some wood properties (such as permeability and acoustic properties) are closely related to its hierarchical porous structure, which is responsible for its potential applications. In this study, the effect of wood impregnation with furfuryl alcohol on its hierarchical porous structure was investigated by microscopy, mercury intrusion porosimetry and nuclear magnetic resonance cryoporometry. Results indicated decreasing lumina diameters and increasing cell wall thickness of various cells after modification. These alterations became serious with enhancing weight percent gain (WPG). Some perforati

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9

Salmén, Lennart, Anne-Mari Olsson, Jasna S. Stevanic, Jasna Simonović, and Ksenija Radotić. "Structural organisation of the wood polymers in the wood fibre structure." BioResources 7, no. 1 (2011): 521–32. http://dx.doi.org/10.15376/biores.7.1.521-532.

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The organization of the major polymers in the wood fiber has a large impact on the properties of the structure. Numerous studies have been devoted to the cellulose microfibril arrangement, providing the longitudinal strength of the fiber, while less is known regarding the structural organization of other components, such as hemicelluloses and lignin. For the hemicelluloses, as being part of the cellulose aggregation process, indications of a strong coupling to the cellulose structure have been shown. For lignin, being laid down in a later stage, no clear picture has emerged. Here the orientati

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10

Vincent, Julian FV. "Structure of wood." Current Opinion in Solid State and Materials Science 3, no. 3 (1998): 228–31. http://dx.doi.org/10.1016/s1359-0286(98)80095-8.

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11

Lyon, Jarod P., Simon J. Nicol, Jason A. Lieschke, and David S. L. Ramsey. "Does wood type influence the colonisation of this habitat by macroinvertebrates in large lowland rivers?" Marine and Freshwater Research 60, no. 5 (2009): 384. http://dx.doi.org/10.1071/mf07233.

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Submerged woody habitat provides the major structure around which ecological processes operate in many lowland rivers. Colonisation by macroinvertebrates was measured in a south-eastern Australian river over a 32-day period in an experiment testing the hypothesis that wood type influences the invertebrate assemblage structure. The wood types were green wood, dry wood, and dry but previously waterlogged wood. All wood used was river red gum (Eucalyptus camaldulensis). Macroinvertebrates colonised previously waterlogged wood more rapidly than green or dry wood. The assemblage structure varied si

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12

Sun, Panxu, Keguang Li, and Gangzhu Sun. "Seismic performance analysis of wood-steel frame structures." BioResources 19, no. 4 (2024): 8730–38. http://dx.doi.org/10.15376/biores.19.4.8730-8738.

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Wood and steel have different physical properties. By combining the two kinds of materials as bonded parallel beams, wood-steel frame structures can be prepared. This work considers the seismic performance of such engineering structures. Based on the Rayleigh damping model of substructures, the non-proportional damping coefficient is used to quantify the structural non-proportional damping characteristic of wood-steel frame structures. A complex mode superposition method is used to calculate seismic responses. Numerical cases showed that compared with the frame structure with upper steel and l

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13

Misztal, Barbara, and Anna Mielińska. "SELECTION CRITERIA OF THERMO-INSULATING MATERIALS TO INSULATE WOODEN BUILDING FACILITIES." Space&FORM 2020, no. 46 (2021): 87–100. http://dx.doi.org/10.21005/pif.2021.46.b-05.

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The article presents the structure of wood as a fibrous composite made up of cells susceptible to moisture absorption. Attention was paid to the impact of insulation materials on the durability of wood. The flow of moisture in materials such as wood and glass wool representing a group of porous and non-absorbing materials is shown. Microscopic pictures of pine and oak wood, wood fibre mats and glass wool are shown. The full construction of fibers of glass wool and other e. g. mineral wool, makes them extremely non-beneficial for warming partitions in buildings involving wood. Materials with a

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14

Garrido, Pablo, Lars Edenius, Grzegorz Mikusiński, Anna Skarin, Anna Jansson, and Carl-Gustaf Thulin. "Experimental rewilding may restore abandoned wood-pastures if policy allows." Ambio 50, no. 1 (2020): 101–12. http://dx.doi.org/10.1007/s13280-020-01320-0.

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AbstractLarge herbivores play key roles in terrestrial ecosystems. Continuous defaunation processes have produced cascade effects on plant community composition, vegetation structure, and even climate. Wood-pastures were created by traditional management practices that have maintained open structures and biodiversity for millennia. In Europe, despite the broad recognition of their biological importance, such landscapes are declining due to land-use changes. This calls for finding urgent solutions for wood-pasture conservation. To test whether introducing an ecological replacement of an extinct

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15

Balakshin, Mikhail Yu, Ewellyn A. Capanema, Barry Goldfarb, John Frampton, and John F. Kadla. "NMR studies on Fraser fir Abies fraseri (Pursh) Poir. lignins." Holzforschung 59, no. 5 (2005): 488–96. http://dx.doi.org/10.1515/hf.2005.081.

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Abstract The composition of mature, juvenile uninfested and juvenile infested Fraser fir wood (Rotholz) and the structures of lignins isolated from these woods were elucidated to verify differences between juvenile and mature wood and the effect of balsam woolly adelgid (BWA) infestation. Milled wood lignin (MWL) isolated from mature, juvenile and Rotholz wood were comprehensively characterized using heteronuclear multiple quantum coherence (HMQC) and quantitative 13C NMR techniques. The Rotholz wood was found to have ∼13% higher lignin content and more than five-fold the amount of galactans t

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16

Liu, Rushan, and Deyuan Tian. "Study on Analogy Calculation Method for Seismic Vulnerability of Earth-Wood Structure Houses." Mathematical Problems in Engineering 2020 (July 27, 2020): 1–10. http://dx.doi.org/10.1155/2020/3525896.

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Earth-wood structure houses often cause large casualties and economic losses in historical earthquakes. Therefore, it is estimated that the seismic vulnerability of civil structures in areas that have not experienced earthquakes is of great significance for earthquake prevention and disaster reduction. In this paper, an analogy calculation method was proposed for calculating the seismic vulnerability of earth-wood structure houses in unknown regions from the seismic vulnerability of earth-wood structure houses in known regions. Firstly, the main factors affecting the seismic capacity of earth-

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17

Meekum, Utai, and Waree Wangkheeree. "Designing the wood foam core for manufacturing of lightweight sandwich structure engineered wood." BioResources 12, no. 4 (2017): 9001–23. http://dx.doi.org/10.15376/biores.12.4.9001-9023.

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Wood foam cores manufactured from Eucalyptus fiber/epoxy adhesive and 4,4′ oxybis(benzene sulfonyl hydrazide) (OBSH), ethyl acetate (EA), and microsphere polymer bead (Expancel®) as foaming agents were investigated. A 10 phr of OBSH showed superior properties of the 0.50 g/cm3 wood foam and that 0.70 g/cm3 was the optimal density. Also, 17 phr of EA loading gave rise to the better mechanical properties and was considered the optimal content. The microsphere polymer bead did not achieve significant expansion under the conditions employed. Manufacturing of single (X1) and double (X2) layer of li

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18

Karľa, V., V. Bajzecerová, and J. Kanócz. "Potential Use of Transparent Wood in Spatial Folded Structures." IOP Conference Series: Materials Science and Engineering 1252, no. 1 (2022): 012001. http://dx.doi.org/10.1088/1757-899x/1252/1/012001.

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Abstract Transparent wood is a relatively new material, the manufacturing starts with removing the lignin from wood veneer and infiltrating the delignified wood by a polymer thereafter. Transparent wood usually proves better mechanical properties than original wood and polymer. The article presents the potential use of transparent wood in bearing structures. The transparent wood could be used as I-beams structures, box beams, trusses, or folded structures. A spatial folded structure was numerically analyzed. Various types of transparent wood or transparent plywood were used. A comparison with

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19

BEAUCHENE, Jacques, Nadine AMUSANT, Jeremy CIGNA, Soepe KOESE, and Bernard THIBAUT. "Using specimens from the CIRAD Kourou wood collection to build a database of properties." BOIS & FORETS DES TROPIQUES 352 (May 1, 2022): 61–70. http://dx.doi.org/10.19182/bft2022.352.a36936.

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A Xylarium, like the one in Kourou in French Guiana, is a unique collection of wood specimens assembled over many years that represents high interspecific diversity. In addition to the standard use of such collections for systematic anatomy, a technological database can be created using supplementary specimens taken from the same tree as the reference specimens. Physical, mechanical and durability tests were performed on wood planks measuring 10 × 60 × 100 mm3 (L is the longest direction, width and thickness are not always perfectly radial or tangential, just transverse) representing 445 woody

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20

Nowak, Jakub, Marek Florek, Wojciech Kwiatek, et al. "Composite structure of wood cells in petrified wood." Materials Science and Engineering: C 25, no. 2 (2005): 119–30. http://dx.doi.org/10.1016/j.msec.2005.01.018.

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21

Rosner, Sabine. "Hydraulic and biomechanical optimization in norway spruce trunkwood – a review." IAWA Journal 34, no. 4 (2013): 365–90. http://dx.doi.org/10.1163/22941932-00000031.

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Secondary xylem (wood) fulfills many of the functions required for tree survival, such as transport of water and nutrients, storage of water and assimilates, and mechanical support. The evolutionary process has optimized tree structure to maximize survival of the species, but has not necessarily optimized the wood properties needed for lumber. Under the impact of global warming, knowledge about structure-function relationships in tree trunks will become more and more important in order to prognosticate survival prospects of a species, individuals or provenances. Increasing our knowledge on fun

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22

Lewis, Ann M. "A Video Technique for Imaging the Three-Dimensional Architecture of Wood." IAWA Journal 16, no. 1 (1995): 81–86. http://dx.doi.org/10.1163/22941932-90001392.

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This paper describes a video micrographic technique to image the internal three-dimensional structure of wood. The technique uses high resolution video and an optical disk recorder to give immediate access to noise-free serially-recorded images in both still-frame and motion modes. By using a hydrophilie embedding medium, small woody tissue samples can be successfully embedded, sectioned at thicknesses that are useful for video micrography of the exposed tissue surface, and serially recorded to analyse three-dimensional architecture. The technique can be used by researchers working in wood ana

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23

Maha, M. A. Lashin, Shoukry Saleh Wafaa, and Alrowais Fadwa. "Determination of Different Structures' Materials Natural Frequencies using Fuzzy Logic System." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 3 (2020): 723–27. https://doi.org/10.35940/ijeat.B3641.029320.

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The impact of structure’s material and dimensions on its natural frequency are lacking in recent literature. The main aim of that paper is investigating material’ characteristics effect on structures natural frequency. Five different types of materials (steel, concrete,wood, plastic and aluminum) which mostly used in engineering applications implemented in this study. A fuzzy system designed and structured for each type of materials. It used to optimize the natural frequency values related to height and area of structure. The results show that whilst the height of the structure is

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24

Meng, Xin, Yong Feng Li, Jian Li, and Yi Xing Liu. "Structure Characterization for Wood-PMMA Composite." Applied Mechanics and Materials 26-28 (June 2010): 971–75. http://dx.doi.org/10.4028/www.scientific.net/amm.26-28.971.

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A new composite, wood-polymer composite, was fabricated by formation of poly (methyl methacrylate) in wood cellular structure. Methyl methacrylate (MMA) monomer and a few of 2,2'- azobisisobutyronitrile (AIBN) as an initiator, as well as several drops of pyrimidine as catalyst were first impregnated into wood porous structure under a pressure condition, and then initiated for thermal polymerization through a catalyst-thermal treatment. The structure of Wood-PMMA Composite was characterized by SEM, FTIR, XRD, and its thermal stability was also examined. The results indicate that PMMA polymer ge

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Hirayama, Haruka, Takuya Akiyama, Satoshi Kimura та ін. "Influence of the p-hydroxyphenyl/guaiacyl ratio on the biphenyl and β-5 contents in compression wood lignins". Holzforschung 73, № 10 (2019): 923–35. http://dx.doi.org/10.1515/hf-2019-0012.

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Abstract Reaction woods of three softwoods, Pinus merkusii, Cryptomeria japonica and Cedrus deodara, were investigated by alkaline nitrobenzene oxidation (NBO) to characterize the condensed-type structures in compression wood lignins. A novel biphenyl-type NBO product carrying guaiacyl (G)- and p-hydroxyphenyl (H)-units, dehydrovanillin-p-hydroxybenzaldehyde (HG-biphenyl product), was identified using the authentic standard compound. On the basis of the yield of this novel NBO product, as well as those of GG-biphenyl-, β-5-, and uncondensed-type products [e.g. dehydrodivanillin, 5-formylvanill

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Stachowiak-Wencek, Agata, Monika Bartkowiak, Magdalena Zborowska, and Jan Bocianowski. "Effects of aqueous ammonia vapor on the color and chemical structure of Robinia pseudoacacia and oak woods." BioResources 15, no. 3 (2020): 5812–28. http://dx.doi.org/10.15376/biores.15.3.5812-5828.

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Aqueous ammonia vapors were found to affect the color and structure of oak (Quercus L.) and Robinia pseudoacacia L. woods. The modification process was performed using 5% or 10% ammonia concentration at a temperature of 120 °C, 130 °C, or 140 °C. Wood mass and volume change coefficients were determined. The degree of wood discoloration was determined using the Commission Internationale de l’Eclairage (CIE) Lab system, and the changes to the chemical structure were determined using the Fourier transform infrared (FTIR) technique. The samples darkened due to the modification. They also became le

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Kononov, G. N., A. N. Verevkin, Yu V. Serdyukova, and V. D. Zaitsev. "Mycolysis of wood, its products and their use. II. Biological and morphological processes of mycological destruction of wood." FORESTRY BULLETIN 24, no. 5 (2020): 89–96. http://dx.doi.org/10.18698/2542-1468-2020-5-89-96.

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The article is devoted to some questions of the biology of wood-destroying fungi: the processes of their nutrition, growth, reproduction and development as xylophytes. The classification of «rot» formed by the action of wood-destroying fungi at the place of their location in a woody plant and the nature of the destruction of wood is considered. The characteristics of the stages of mycological destruction of wood in terms of changes in its morphology are given. The effect of changes in the structure of mycologically destroyed wood on its physical properties is shown.

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28

Jiang, Simeng. "Optimized Application of Steel-Wood Materials in Large-Span Spatial Structures." Transactions on Engineering and Technology Research 4 (December 20, 2024): 148–52. https://doi.org/10.62051/rsdx7w84.

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With the continuous development of society and the increasing progress of science and technology, the construction industry has higher and higher requirements for the form and material properties of large-span spatial structures. Under this background, the application of steel-wood structures in large-span spatial structures brings new technical design principles and more possibilities for modern architectural engineering. In this paper, the application of steel-wood materials in large-span spatial structures and case model analysis are deeply studied. Firstly, the design theory of steel-wood

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Bian, Zhi Hui, Tie Cheng Wang, Shi Yong Zhao, and Xu Guang Li. "A Study on Node Connection Technology of Wood Structure." Applied Mechanics and Materials 405-408 (September 2013): 3094–98. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.3094.

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As an important component of modern wood frame system, the design and construction of node are also constantly developing. By taking Sino-Canadian Exchange Center for Low-carbon & Building Energy-saving housing project for example, this paper is to introduce the node connection technology of the wooden structure in three aspects:new joint connection technology of Wood components , connection of Wood - concrete structures and node details processing in the wood structure, which plays a positive reference role in the development and promotion of modern wooden architecture node technology.

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Qin, Zhuo Kai, Jia Sheng Zhang, Yu Tian Yang, Jian Ju Luo, and Wei Gao. "Constructing 3D Model of Hardwood Structure." Key Engineering Materials 719 (November 2016): 9–13. http://dx.doi.org/10.4028/www.scientific.net/kem.719.9.

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Model constructing was conducted with 3D Studio Max modeling technology for hardwood minute structure in three steps. In the first step, the single-cell models were built according to the true form and shape of various kinds of cells, including vessel elements, wood-fiber cells, longitudinal parenchyma cells and ray cells. In the second step, the single-tissue models for all the four kinds of wood tissues (vessel, wood-fiber, longitudinal parenchyma and wood ray) were constructed by setting the same kind of single-cell models together according to the cell grouping ways inside true wood. In th

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WEI, PEIXING, JINXIANG CHEN, YUE ZHANG, and LIJUN PU. "WOOD-BASED SANDWICH PANELS: A REVIEW." WOOD RESEARCH 66(5) 2021 66, no. 5 (2021): 875–90. http://dx.doi.org/10.37763/wr.1336-4561/66.5.875890.

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A sandwich panel with a high ratio of strength to weight is commonly used in aerospace, construction, packaging and other fields. Using a renewable material such as wood to make sandwich panels can achieve a perfect unity of material and structure. In view of the lackof systematic analyses of wood-based sandwich panels, this work reviewed the developmentof wood-based sandwich panels. Based on the core structure, these panels can be divided into hollow-core structures and solid-core structures. With the emergence of new materials and new technologies, new wood-based sandwich products had been c

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32

Nurminen, Ilkka, Erkki Saharinen, and Jari Sirviö. "New technology for producing fibrillar fines directly from wood." BioResources 13, no. 3 (2018): 5032–41. http://dx.doi.org/10.15376/biores.13.3.5032-5041.

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A method for producing lignocellulosic fibrillar fines directly from moist wood through a grinding process was evaluated. The method is based on a conventional stone wood grinding process with a novel grinding stone surface structure. The grinding stone (wheel) with a surface profile serrated in the axial direction of the wheel, forces fibres to break down into fibrils instead of detaching as fibres from the wood matrix. The arrangement mimics the inclined feeding of a log against a grinding stone and is completed without any related technical difficulties. Typically over a 90% conversion rate

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Mydlarz, Katarzyna, and Marek Wieruszewski. "The Energy Potential of Firewood and By-Products of Round Wood Processing—Economic and Technical Aspects." Energies 17, no. 19 (2024): 4797. http://dx.doi.org/10.3390/en17194797.

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According to most energy demand forecasts, woody biomass has the potential to become an important source of renewable energy, especially during the transitional period of energy transition. The aim of this article was to estimate the energy potential of the biomass from the forest and the biomass generated by the mechanical processing of wood raw material and also to show the spectrum of possibilities for the potential use of the biomass for energy production in Poland. This research used available statistical and literature data on the species structure of harvested wood and the qualitative a

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Ruffinatto, Flavio, Francesco Negro, and Alan Crivellaro. "The Macroscopic Structure of Wood." Forests 14, no. 3 (2023): 644. http://dx.doi.org/10.3390/f14030644.

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Understanding the macroscopic structure of wood and its formation is essential to identifying wood and evaluating its properties and quality. Depending on genetic background, environmental conditions, and tree developmental stage, the macroscopic structure of wood can vary greatly and produce specific macroscopic signatures. Here, a comprehensive outline of the wood’s macroscopic structure and the features that can be used to identify wood by macroscopic examination is presented. The planes of observations are first depicted, and the fundamental differences between softwoods and hardwoods are

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Li, Yong Feng, Yi Xing Liu, Jiang Tao Shi, and Gang Li. "Structure and Property of PGMA/Wood Composite." Advanced Materials Research 87-88 (December 2009): 456–61. http://dx.doi.org/10.4028/www.scientific.net/amr.87-88.456.

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In order to prepare a wood-based composite material which, as a type of multifunctional and natural bio-based material, possesses satisfactory mechanical properties, excellent durability (i.e., decay resistance and dimensional stability), and Aenvironmental characteristic, the study presents a new method which is based on the cellular structure of wood by initiating polymerizable monomers for in situ polymerization. Glycidyl methacrylate (GMA) as a multifunctional and polymerizable monomer was chosen, and impregnated into the porous structure of wood. After a thermal-catalyst process, the wood

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Schilling, Marion, Marceau Levasseur, Muriel Barbier, et al. "Wood Degradation by Fomitiporia mediterranea M. Fischer: Exploring Fungal Adaptation Using Metabolomic Networking." Journal of Fungi 9, no. 5 (2023): 536. http://dx.doi.org/10.3390/jof9050536.

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Fomitiporia mediterranea M. Fischer (Fmed) is a white-rot wood-decaying fungus associated with one of the most important and challenging diseases in vineyards: Esca. To relieve microbial degradation, woody plants, including Vitis vinifera, use structural and chemical weapons. Lignin is the most recalcitrant of the wood cell wall structural compounds and contributes to wood durability. Extractives are constitutive or de novo synthesized specialized metabolites that are not covalently bound to wood cell walls and are often associated with antimicrobial properties. Fmed is able to mineralize lign

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Carlquist, Sherwin. "Wood and Bark Anatomy of Aristolochiaceae; Systematic and Habital Correlations." IAWA Journal 14, no. 4 (1993): 341–57. http://dx.doi.org/10.1163/22941932-90000588.

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Wood of Aristolochiaceae has vessels with simple petforation plates; lateral wall pitting of vessels alternate to scalariform; tracheids, fibre-tracheids or libriform fibres present; axial parenchyma diffuse, diffuse-in-aggregates, scanty vasicentric, and banded apotracheal; rays wide and tall, paedomorphic, multiseriate only, little altered during ontogeny (new rays originate suddenly as wid~ multiseriate rays); ethereal oil cells present in rays; wood structure storied. All of these features occur in Lactoridaceae and Piperaceae, and support the grouping of Aristolochiaceae with these famili

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Deng, Hua. "Application of BIM Technology in the Seismic Performance of “Wood Weaving” Structure of Wooden Arcade Bridges." Shock and Vibration 2022 (October 11, 2022): 1–8. http://dx.doi.org/10.1155/2022/8033059.

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The wood arch bridge has good seismic performance, and the “wood weaving” of its arch system is closely related. Wood weaving has the isolation function similar to that of rubber bearing isolation layer under earthquake, which is the key to ensuring good isolation performance of wood arch bridges. However, it is difficult to measure the seismic performance of the “wood woven” structure of the wooden arch bridge, which leads to its limited application. In order to solve this problem, building information model (BIM) technology is introduced into this field, and the application of BIM technology

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Zhang, Chang, Taoyang Cai, Shangjie Ge-Zhang, Pingxuan Mu, Yuwen Liu, and Jingang Cui. "Wood Sponge for Oil–Water Separation." Polymers 16, no. 16 (2024): 2362. http://dx.doi.org/10.3390/polym16162362.

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In addition to filtering some sediments, hydrophobic wood sponges can also absorb many organic solvents, particularly crude oil. The leakage of crude oil poses a serious threat to the marine ecosystem, and oil mixed with water also generates great danger for its use. From the perspective of low cost and high performance, wood sponges exhibit great potential for dealing with crude oil pollution. Wood sponge is a renewable material. With a highly oriented layered structure and a highly compressible three-dimensional porous frame, wood sponges are extremely hydrophobic, making them ideal for oil–

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Kovacheva, P. G., and N. G. Boshnakova. "Effects of gamma radiation on the structure and thermal properties of ebony wood." Bulgarian Chemical Communications 56, no. C (2024): 123–28. http://dx.doi.org/10.34049/bcc.56.c.si-2.

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Gamma irradiation is an effective method for disinfestation of wood-made materials, including cultural heritage treatment. Selection of the absorbed dose and dose rate is needed to avoid radiation-induced destruction that would compromise the preservation of the artifacts. Therefore, the side effects of the radiation on different types of wood are worth exploring. This study describes the effects of gamma irradiation with doses up to 25 kGy, absorbed at two dose rates, on ebony wood samples with different radiocarbon age. The investigation aims to identify the side effects of gamma disinfestat

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Jeyasingh, D. E. P. "What do the petrified woods of the Sriperumbudur Formation indicate?" Journal of Palaeosciences 57, no. (1-3) (2008): 407–14. http://dx.doi.org/10.54991/jop.2008.256.

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Of the several outcrops of Upper Gondwana exposures along the East Coast of the Indian Peninsula, the Sriperumbudur Formation near Chennai, Tamil Nadu has yielded many well-preserved petrified woods. Extensive anatomical studies were carried out on these woods during the past decade at Tambaram, Chennai. A study of these woods helped to understand the variation in the wood structure. Based on these woods, the diversity of the arborescent palaeoflora was traced in the region during the Late Jurassic-Early Cretaceous times. It has also been possible to interpret the climatic conditions that prev

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Bakir, Davut. "Anatomical structure and copper microdistribution in mechanical, biological, and laser incised spruce and larch refractory woods." BioResources 18, no. 1 (2023): 1368–83. http://dx.doi.org/10.15376/biores.18.1.1368-1383.

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The anatomical structure of wood and the application of three different incision pretreatments affect the distribution of preservatives in refractory woods. This study focused on Picea orientalis (L.) Peterm.) and Larix decidua Mill. and investigated the distribution of copper-based preservatives in the wood microstructure. Different incision pretreatments were applied before impregnation to increase the permeability of spruce and larch sapwood samples. After the incision pretreatments, transverse cross-sectional surfaces of the samples were sealed with polyurethane-based paint to prevent exce

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Jahanbanifard, Mehrdad, Vicky Beckers, Gerald Koch, et al. "Description and evolution of wood anatomical characters in the ebony wood genus Diospyros and its close relatives (Ebenaceae): a first step towards combatting illegal logging." IAWA Journal 41, no. 4 (2020): 577–619. http://dx.doi.org/10.1163/22941932-bja10040.

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Abstract The typical black coloured ebony wood (Diospyros, Ebenaceae) is desired as a commercial timber because of its durable and aesthetic properties. Surprisingly, a comprehensive wood anatomical overview of the genus is lacking, making it impossible to fully grasp the diversity in microscopic anatomy and to distinguish between CITES protected species native to Madagascar and the rest. We present the largest microscopic wood anatomical reference database for ebony woods and reconstruct evolutionary patterns in the microscopic wood anatomy within the family level using an earlier generated m

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Yang, Xinxin. "Review of Studies on Performance of Dowel Connections Loaded Perpendicular to Grain." Academic Journal of Science and Technology 11, no. 1 (2024): 77–80. http://dx.doi.org/10.54097/h8w21p15.

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Wood as a sustainable building material demonstrates significant advantages in terms of environmental protection, economy and functionality. Studies showed that adding 1.0m3 of wood could absorb 1.0kg of carbon dioxide, produce 730kg of oxygen, and fix 270kg of carbon, which plays an important role in ecological environment protection. In addition, in addition, wood has good thermal insulation performance, can adjust indoor humidity, beneficial to human health.China's wooden structure architecture has a long history. As an important technology in China's traditional architecture, mortise and t

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AUGUSTINA, SARAH, WAHYU DWIANTO, MUHAMMAD ADLY RAHANDI LUBIS, et al. "EFFECT OF ANATOMICAL STRUCTURE ON DIMENSIONAL STABILITY OF LOW MOLECULAR WEIGHT PHENOL-FORMALDEHYDE IMPREGNATED WOOD." Wood Research 68, no. 3 (2023): 425–43. http://dx.doi.org/10.37763/wr.1336-4561/68.3.425443.

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This research deals with low molecular weight-phenol formaldehyde (LMW–PF) impregnation on sepetir (Sindora spp), nyatoh (Palaquium spp.), and pisang putih (Mezzettia spp.) woods to determine the effect of different anatomical structure on weight percent gain and dimensional stability improvement. The wood samples were impregnated using LMW–PF solutions with 7, 8, 9, 10, and 11% of concentrations (w/w), vacuum-pressured (–98 kPa, 15 min, 350 kPa, 4 h), and re-immersed in 80°C for 3 h. According to the findings, LMW–PF impregnation reduced coefficient of swelling by 9.64–29.95%, and increased a

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Garvey, Christopher J., Robert B. Knott, Matthew Searson, and Jann P. Conroy. "USANS study of wood structure." Physica B: Condensed Matter 385-386 (November 2006): 877–79. http://dx.doi.org/10.1016/j.physb.2006.05.132.

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Wodzicki, T. J. "Natural factors affecting wood structure." Wood Science and Technology 35, no. 1-2 (2001): 5–26. http://dx.doi.org/10.1007/s002260100085.

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Nilsson, Thomas, and Roger Rowell. "Historical wood – structure and properties." Journal of Cultural Heritage 13, no. 3 (2012): S5—S9. http://dx.doi.org/10.1016/j.culher.2012.03.016.

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Frihart, Charles R., and Christopher G. Hunt. "Protein structure and wood adhesives." Industrial Crops and Products 229 (July 2025): 121008. https://doi.org/10.1016/j.indcrop.2025.121008.

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Cambie, RC, GR Clark, PA Craw, TC Jones, PS Rutledge, and PD Woodgate. "Chemistry of the Podocarpaceae. LXIX. Further Lignans from te Wood of Dacrydium intermedium." Australian Journal of Chemistry 38, no. 11 (1985): 1631. http://dx.doi.org/10.1071/ch9851631.

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Structures and absolute configurations are established for five new lignans isolated from the wood of the New Zealand podocarp Dacrydium intermedium Kirk. X-ray crystallography has been used to confirm the structure of one of the new lignans. Structures for two further inseparable lignans are provisionally assigned. The structure of one of three lignans previously isolated from the wood is revised.

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