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1

Chornobrov, O., and O. Khodyn. "Ecological assessment of dead wood volume in hornbeam-maple-ash forest in «Medobory» Nature Reserve." Agroecological journal, no. 4 (November 10, 2022): 34–44. http://dx.doi.org/10.33730/2077-4893.4.2022.273247.

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The volume of coarse woody detritus in the 112- year-old hornbeam-maple-ash forest stand of natural origin in «Medobory» Nature Reserve have been studied. The study of dead wood was carried out on a sample plot (0.48 ha) by the method of full accounting. The volume of woody detritus in the forest ecosystem is 62.7 m3∙ha–1and consists of fallen (82.9%) and standing (17.1%) deadwood. The main part of the dead wood volume is formed one tree species — common ash (Fraxinus excelsior L.) (93.0%). In general, woody detritus is characterized by I–IV classes of decomposition, while detritus of decompos
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Chornobrov, O., I. Tymochko, and O. Bezrodnova. "Volume of woody detritus in fresh maple-linden dibrova in Slobozhanskyi National Nature Park." Balanced nature using, no. 2 (May 20, 2021): 88–97. http://dx.doi.org/10.33730/2310-4678.2.2021.237995.

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The article examines the volume of coarse woody detritus in fresh maple-linden-dibrova in Slobozhanskyi National Nature Park. The study was carried out in 115-year-old forest with a predominance of common oak (Quercus robur L.) of natural origin on a sample plot (0.24 ha) by identifying and measuring of standing and lying dead wood components. The volume of dead wood in the forest ecosystem is 32.4 m3·ha–1 and consists of fallen (84.3%) and standing (15.7%). The main part of the dead wood volume is formed by one tree species — common oak (91.3%). In general, woody detritus is characterized by
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3

Khodyn, O., and O. Chornobrov. "Ecological assessment of dead woodvolume in hornbeam-oak forest in «Medobory» Nature Reserve." Agroecological journal, no. 4 (October 28, 2021): 37–46. http://dx.doi.org/10.33730/2077-4893.4.2021.252954.

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The volume of coarse woody detritus in the 139year-old hornbeam-oak forest stand of natural origin on the territory of the «Medobory» Nature Reserve have been studied. The study of dead wood was carried out on a sample plot (0.24 ha) by the method of continuous accounting. It was found that the volume of woody detritus in the forest ecosystem is 108.8 m3∙ha–1 and consists of fallen (32.1%) and standing (67.9%) deadwood. The main part of the dead wood volume is formed by two tree species — common oak (Quercus robur L.) (49.1%) and wychelm (Ulmus glabra Huds.) (48.4%). In general, woody detritus
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4

Некляев, С. Э., Л. Г. Серая та Г. Е. Ларина. "Экологические последствия современных изменений климата, негативно влияющие на устойчивость хвойных растений к вредителям и афиллофоровым грибам". Biosfera 14, № 3 (2022): 81. http://dx.doi.org/10.24855/biosfera.v14i3.693.

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The resistance of woody plants to pests and stem rot is reduced in the Non-Chernozem zone of Russia. The spread of areas where coniferous forests are compromised and of windbreak areas is a signal of an increase in the negative impact of abiotic factors and phytopathogens. The primary role in the decomposition of the woody substrate belongs to aphyllophoric fungi. The zero stage of xylolisis occurs within one growing season or a part of it and does not affect the characteristics of wood. The first stage takes 1-2 years and leads to the formation of a ring of wood-staining fungi. At the second
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Sefidi, Kiomars, and Vahid Etemad. "Dead wood characteristics influencing macrofungi species abundance and diversity in Caspian natural beech (Fagus orientalis Lipsky) forests." Forest Systems 24, no. 2 (2015): eSC03. http://dx.doi.org/10.5424/fs/2015242-06039.

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<p><em>Aim of study</em>: This study aimed to examine the dead wood inhabiting macrofungi communities occurring on dead beech and hornbeam trees in Caspian forests.<strong></strong></p><p><em>Area of study</em>: The Kheiroud forest in the north of Iran.</p><p><em>Material and Methods</em>: Data from 205 sampling dead tree were analyzed by means of Generalized Linear Models (GLM) to test the effects of decay stage, DBH, Length or Height on macrofungi diversity. Additionally, tree species, dead wood size, log position,
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Ponce, Ángel, Elena Salerni, Maria Nives D’Aguanno, and Claudia Perini. "Wood-Decay Fungi Fructifying in Mediterranean Deciduous Oak Forests: A Community Composition, Richness and Productivity Study." Forests 14, no. 7 (2023): 1326. http://dx.doi.org/10.3390/f14071326.

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Deadwood is involved in several important ecological roles, being the fundamental habitat of wood-decay fungi. At the same time, this polyphyletic group of fungi is the principal agent of wood decomposition, regulating the carbon cycle and the food resource for many other organisms. It is known that the diversity and community composition of wood-decay fungi are related to the tree species, decay stage and size of the woody debris in which they are living. Nevertheless, there is a lack of information on Mediterranean Quercus cerris L. forests. In response, we explored how wood-decay fungi colo
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7

Marchenko, O. V., S. V. Solomin, and A. N. Kozlov. "Possibilities of Use of Wood Wastes in the Power Industry of Russia." Ecology and Industry of Russia 23, no. 6 (2019): 17–21. http://dx.doi.org/10.18412/1816-0395-2019-6-17-21.

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This paper is devoted to the selection and justification the development directions of technology for the effective use of wood waste by their thermochemical conversion as part of gas-generating power plants with improved environmental characteristics. A comparison was made of the electric energy cost obtained by the use of various types of fuel (gas, diesel fuel, coal, wood chips and wood pellets). An economic comparison of single- and multi-stage gasification of woody biomass has been performed. It is shown that a more promising technology for processing biomass is three-stage gasification d
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Herrero, Celia, Vicente José Monleon, Natividad Gómez, and Felipe Bravo. "Distribution of dead wood volume and mass in mediterranean Fagus sylvatica L. forests in Northern Iberian Peninsula. Implications for field sampling inventory." Forest Systems 25, no. 3 (2016): e069. http://dx.doi.org/10.5424/fs/2016253-09009.

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Aim of study: The aim of this study was to 1) estimate the amount of dead wood in managed beech (Fagus sylvatica L.) stands in northern Iberian Peninsula and 2) evaluate the most appropriate volume equation and the optimal transect length for sampling downed wood.Area of study: The study area is the Aralar Forest in Navarra (Northern Iberian Peninsula).Material and methods: The amount of dead wood by component (downed logs, snags, stumps and fine woody debris) was inventoried in 51 plots across a chronosequence of stand ages (0-120 years old).Main results: The average volume and biomass of dea
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9

Mlynarek, Julia J., Amélie Grégoire Taillefer, and Terry A. Wheeler. "Saproxylic Diptera assemblages in a temperate deciduous forest: implications for community assembly." PeerJ 6 (December 4, 2018): e6027. http://dx.doi.org/10.7717/peerj.6027.

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Saproxylic insects, those associated directly or indirectly with decaying wood for all or part of their life cycle, compose a large proportion of forest organisms. Flies (Diptera) are often the most abundant and species-rich group of insects in forest microhabitats, yet most work to date on saproxylic insect diversity and ecology has focused on beetles (Coleoptera). We compared saproxylic Diptera assemblages reared from two tree species (sugar maple and American beech) at two stages of decay (early/young and advanced/old) for a total of 20 logs in an eastern Canadian Nearctic old-growth forest
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10

WANG, JINGGUI, MING LI, SAIYIN FANG, et al. "RESEARCH ON WOOD DAMAGE FRACTURE CHARACTERISTICS BASED ON ACOUSTIC EMISSION RA-AF VALUE AND ENERGY CONCENTRATION." Wood Research 70, no. 1 (2025): 40–53. https://doi.org/10.37763/wr.1336-4561/70.1.4053.

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To study the acoustic emission (AE) characteristics and fracture properties of wood at different stress stages, three-point bending tests and real-time AE monitoring were carried out on Zelkova schneideriana and Pinus sylvestris var. in this paper. Different stress stages were classified according to AE ringing counts-cumulative AE ringing counts-load curves, damage modes of wood at different stages were identified based on distribution characteristics of RA-AF data, and fracture behavior of wood was predicted by energy concentration k. Results show that distribution characteristics of AE RA-A
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11

Shin, Gyeong-Jin, So-Yeon Jeong, Hong-Joo Lee, and Jae-Won Lee. "Furfural Production and Recovery by Two-stage Acid Treatment of Lignocellulosic Biomass." Journal of the Korean Wood Science and Technology 43, no. 1 (2015): 76–85. http://dx.doi.org/10.5658/wood.2015.43.1.76.

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12

Houngbeme, Carlos A., Aristide Houngan, and Armand Djossou. "Experimental and Numerical Study of the Physico-Hygrothermal Behavior of Two Tropical Wood Species." Key Engineering Materials 980 (April 18, 2024): 149–60. http://dx.doi.org/10.4028/p-xsva64.

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In the first stage. an integral saturation test of lignocellulosic materials was carried out on samples of wood under the control of a previously established theoretical basis. At the end of this test. parameters such as the porosity at saturation with water. the basal density. the total volume shrinkage. the linear shrinkages. the density at the saturation of the samples are deduced. The second stage of this work is based on the exploitation of the hot tape method to achieve the thermophysical properties of wood samples over a range of humidity levels from 0% to 60%. The last stage of this re
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13

Yuwono, Budi. "Wood Texture as An Inspiration for the Creation of Digital Imaging." IJVCDC (Indonesian Journal of Visual Culture, Design, and Cinema) 1, no. 1 (2022): 55–61. http://dx.doi.org/10.21512/ijvcdc.v1i1.8223.

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In the world of design, themes and concepts become fundamental. Themes and concepts cover the whole idea of a work, as well as in the field of digital imaging. Ideas can be taken from nearby environments such as natural beauty of wood texture. The idea used in the creation of digital imaging is wood texture. The process is the pre-production and production stage. Methods consisting of idea stages, data collection, stage of embodiment, and finalization. At the idea stage, it is attempted to visualize and represent the wood texture through digital imaging techniques. This idea was raised based o
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14

He, Xia, Guanmin Yang, and Xueming Yan. "The Research on Temperature Variation Characteristic of Wood during High-intensity Microwave Pretreatment." Academic Journal of Science and Technology 13, no. 1 (2024): 23–25. http://dx.doi.org/10.54097/zp02ac23.

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High-intensity microwave pretreatment (HIMP) is a kind of wood modification technology with great potential. In this study, a microwave (MW) treatment of plantation poplar (populous deltoids) wood was investigated by applying MW treatments with varying conditions, such as radiation power, irradiation time, and initial moisture content of the wood. The effect of microwave pretreatment conditions on internal temperature of wood was studied systematically. Results show that the temperature of wood increased with the microwave radiation intensity and the irradiation time. Excessive moisture conten
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15

Anita. "ELEMENTS OF CULTURE AND LOCAL WISDOM SA'O KEDA TRADITIONAL HOUSE (HOUSE OF CONSULTATIONS) WOLOTOPO VILLAGE, NDONA DISTRICT, ENDE DISTRICT." Santhet (Jurnal Sejarah Pendidikan Dan Humaniora) 7, no. 1 (2023): 15–20. http://dx.doi.org/10.36526/santhet.v7i1.2699.

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The problem in this research is, what is the process of making Sa'o Keda and what meaning is contained in making Sa'o Keda while the purpose of this research is to find out the process of making Sao Keda and the meaning of Sao Keda. The method used in this research is qualitative method. Qualitative research is a particular tradition within the social sciences that is fundamentally dependent on observing humans both in its field and in terms of it. The data collection techniques used were interviews, observation and documentation. The results showed that the process of making Sa'o Keda consist
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16

Wayne Wilcox, W. "Comparative Morphology of Early Stages of Brown-Rot Wood Decay." IAWA Journal 14, no. 2 (1993): 127–38. http://dx.doi.org/10.1163/22941932-90001306.

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Early stages of decay by two brown-rot fungi in two woods were studied by light and scanning electron microscopy. The earliest diagnostic feature to appear was hyphae in the earlywood lumina. The earliest effect on cell walls was the loss of birefringence in the earlywood; Poria placenta (syn. Postia placenta) caused this loss at the earliest stage of decay observed, in both Douglas-fir and white fir, while Gloeophyllum trabeum caused significant weight loss before loss of birefringence was visible. Attack on the latewood progressed from the earlywood, and was different in pattern among the wo
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17

B. SANTOS, RICARDO, JOSÉ LÍVIO GOMIDE, and PETER W. HART. "Impact of wood chip leaching pretreatment on wood chemical composition." January 2015 14, no. 1 (2015): 9–14. http://dx.doi.org/10.32964/tj14.1.9.

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The effect of wood chip acid leaching pretreatment on non-process elements removal and its impact on wood chemical components has been examined. Acid leaching treatments were carried out using two different acid pretreatment approaches: (1) acidified water and (2) filtrate from an acidic bleaching stage. Optimization experiments to identify the most suitable leaching conditions with regard to non-process elements removal and chemical oxygen demand generation were performed. The incorporation of an acid leaching stage significantly reduced the non-process elements content in the wood chips. Car
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18

López, Mar, Valentín Santos, and Juan Carlos Parajó. "Autocatalytic Fractionation of Wood Hemicelluloses: Modeling of Multistage Operation." Catalysts 10, no. 3 (2020): 337. http://dx.doi.org/10.3390/catal10030337.

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Eucalyptus globulus wood samples were treated with hot, compressed water (autohydrolysis) in consecutive stages under non-isothermal conditions in order to convert the hemicellulose fraction into soluble compounds through reactions catalyzed by in situ generated acids. The first stage was a conventional autohydrolysis, and liquid phase obtained under conditions leading to an optimal recovery of soluble saccharides was employed in a new reaction (second crossflow stage) using a fresh wood lot, in order to increase the concentrations of soluble saccharides. In the third crossflow stage, the best
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19

Wang, Jinwu, Johnway Gao, Kristin L. Brandt, Jinxue Jiang, Yalan Liu, and Michael P. Wolcott. "Improvement of enzymatic digestibility of wood by a sequence of optimized milling procedures with final vibratory tube mills for the amorphization of cellulose." Holzforschung 72, no. 6 (2018): 435–41. http://dx.doi.org/10.1515/hf-2017-0161.

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AbstractA three-stage wood milling process was investigated leading to coarse, fine and amorphization of milled wood (MW) as a pretreatment for enzymatic wood hydrolysis. An eccentric vibratory tube mill (EVTM) and a spring suspended vibratory tube mill (SSVTM) were found to be suitable for wood cellulose amorphization. Both methods gave rise to highly digestible and amorphous wood powders amenable to enzymatic hydrolysis. The SSVTM had superior energy efficiency. The resulting MW afforded a 70% sugar yield via enzymatic hydrolysis and the total energy consumption was around 1.5 kWh kg−1oven-d
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20

Behnke-Borowczyk, Jolanta, Justyna Cichoń, Daria Wołowska, Maciej Hałuszczak, and Marlena Baranowska-Wasilewska. "Zastosowanie metod biologii molekularnej do identyfikacji grzybów zasiedlających martwe drewno sosny zwyczajnej (Pinus Sylvestris L.)." Zarządzanie ochroną przyrody w lasach XI (June 30, 2018): 11–20. http://dx.doi.org/10.5604/01.3001.0012.1659.

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The aim of this study was to evaluate the biodiversity of fungi, found in the dead wood of pine. The material for the study was divided into three individual stages of wood decomposition. The analysed wood samples were obtained from two areas in managed forest and protected area. Fungal communities were selected using a molecular method, which based on polymerase chain reaction (PCR), cloned and sequenced by Sangar. The results have shown that the species composition of fungi communities was varied, depending on the stage of wood decomposition. The most numerous was phylum Ascomycota.
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Kalilu, R. O. R., and I. A. Mohammed. "Elemental Comparison of African Balsam and Shea Butter Woods Ashes for Cloth Dyeing." British Journal of Environmental Sciences 12, no. 3 (2024): 12–22. http://dx.doi.org/10.37745/bjes.2013/vol12n31222.

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Elemental comparison of wood ashes fixating materials in cloth dyeing has not been of scholarly attention, especially in Nigeria where studies have also excluded wood ashes for fixating agent for cloth dyeing. This study therefore elementally examined and compared ashes of African Balsam Woods(ABW) (Daniella Oliver) and Shea Butter Wood(SBW) (vita iloria paradoxa) and produced fixating agent with the selected woods with a view to providing scientic fixating agent for alternate synthetic fixating. Woods of each samples were harvested and processed into ashes stage as well as analysed with parti
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22

Wang, Yunpeng, Rui Zhang, and Zhichun Zhou. "Radial Variation of Wood Anatomical Properties Determines the Demarcation of Juvenile-Mature Wood in Schima superba." Forests 12, no. 4 (2021): 512. http://dx.doi.org/10.3390/f12040512.

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Schima superba is a precious broadleaf tree species that produces excellent timber. Analyzing the radial variation of wood anatomical properties within stems and determining the boundary between the juvenile and mature wood can provide a theoretical basis for the breeding and cultivation of S. superba. Herein, 30 54-year-old trees were used to analyze the radial variation of wood anatomical properties qualitatively. The correlation among wood properties was analyzed. On this basis, four types of model were used to predict the wood properties quantitatively, and the optimal segmentation model w
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23

Poletto, Matheus, and Carlos Henrique Medina Guedes. "EFFECT OF RESIDENTIAL STOVE TECHNOLOGY ON GASEOUS EMISSIONS FROM BIOMASS COMBUSTION." MIX Sustentável 10, no. 1 (2024): 29–40. http://dx.doi.org/10.29183/2447-3073.mix2024.v10.n1.29-40.

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The growing use of biomass for cooking and heating raises environmental concerns about atmospheric air pollution from flue gases emitting during its combustion. In this work, the gaseous emissions from two residential wood stoves were examined. Emissions from conventional single-stage and triple-stage combustion logwood stoves were compared using Eucalyptus grandis (EUG) and Pinus elliottii (PIE) woods as fuels. Carbon monoxide emissions were reduced in 102% and 240%, when PIE and EUG wood logs were burned in triple-stage combustion stove. The triple combustion system showed total volatile org
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24

McConachie, Bruce A. "William B. Wood and the “Pathos of Paternalism”." Theatre Survey 28, no. 1 (1987): 1–14. http://dx.doi.org/10.1017/s0040557400008942.

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Theatre historians have been kind to William B. Wood, actor and co-manager of the Chestnut Street Theatre in the early nineteenth century. Reese D. James, in his Old Drury of Philadelphia: A History of the Philadelphia Stage, 1800–1835 (1932), set the sentimental tone that subsequent historians would echo. Relying extensively on Wood's Personal Recollections of the Stage (1855), James lamented that the Chestnut Theatre, following the breakup of Warren and Woods' management in 1826, became “a body without a soul.” In his Theatre U.S.A. (1959), Barnard Hewitt quoted copiously from Wood's Recolle
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Sampara, Nurqalbi, Nurhidayat Triananinsi, Rosita Passe, and Jumrah Sudirman. "Reducing Visual Descriptor Scale (VDS) in Dysminorrhea on Adolescence by Giving Wood Secang Boiled Water (Caesalpinia Sappan L) in Megarezky University." International Journal of Science, Technology & Management 1, no. 4 (2020): 448–52. http://dx.doi.org/10.46729/ijstm.v1i4.68.

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Dysmenorrhea is the pain experienced during menstruation that causes women to experience varying degrees of cramps. It presents as discomfort, while others suffer pain that can stop daily activities for some women. Therefore, to reduce the use of drugs, herbal methods are used, boiled water for the wood secang, so that side effects can minimize for the body. This research aims to analyze the reduction of Visual Descriptor Scale (VDS) of adolescence with dysmenorrhea in Makassar. This research lasted for one year with several stages, including the first stage; identify research samples based on
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Jung, Ji-Young, Myung-Suk Choi, and Jae-Kyung Yang. "Optimization of Two-stage Pretreatment from Soybean Hull for Efficient Glucose Recovery." Journal of the Korean Wood Science and Technology 40, no. 2 (2012): 78–90. http://dx.doi.org/10.5658/wood.2012.40.2.78.

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Peng, Jin Xing, Bei Bei Yan, Guan Yi Chen, Xin Li Zhu, and Chao Wang. "TG-FTIR Analysis of Wood Based Bio-Oil." Advanced Materials Research 347-353 (October 2011): 2661–65. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.2661.

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The combustion mechanism of bio-oil derived from wood fast pyrolysis was investigated by thermogravimetric analysis coupled with Fourier transform infrared spectroscopy (TG–FTIR) in flowing air. The results show that the combustion process of bio-oil consists of two main consecutive stages at a low heating rate. The combustion reaction becomes more and more intense from the first to the second stage. The release of volatiles occurs mainly at 80~200 °C and 350~500°C, and the gaseous products in each stage are different. The main products in the first stage are H2O with a few low molecule weight
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Martens, Kyle D., Daniel C. Donato, Joshua S. Halofsky, Warren D. Devine, and Teodora V. Minkova. "Linking instream wood recruitment to adjacent forest development in landscapes driven by stand-replacing disturbances: a conceptual model to inform riparian and stream management." Environmental Reviews 28, no. 4 (2020): 517–27. http://dx.doi.org/10.1139/er-2020-0035.

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Instream wood plays an important role in stream morphology and creation of fish habitat in conifer forests throughout the temperate zone. In some regions, such as the US Pacific Northwest, many streams currently have reduced amounts of instream wood due to past management activities (timber harvest, wood removal, etc.). These reductions exist against a backdrop of naturally dynamic amounts and distributions of instream wood, which likely fluctuate over time based in part on the stage of development (disturbance and succession) in adjacent riparian forests. Despite many studies on both forest d
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Vititnev, Aleksandr, Roman Marchenko, Anastasiya Rubinskaya, and Anna Shishmareva. "Modeling of internally recycled material in fibreboard production facility as a tool for economic and environmental assessment." BioResources 16, no. 4 (2021): 6587–98. http://dx.doi.org/10.15376/biores.16.4.6587-6598.

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A rationale is presented for the wood fibre process modeling of internally recycled content in fibreboard production. Experimental studies were employed to obtain mathematical dependences in order to confirm the possibility of reusing wood fibre at various stages of the technological process. A wood fibre process model of internally recycled content was accrued out in which each processing stage was presented separately. Two methods for the preparation of wood fibre for reuse in fibreboard production were considered. To assess the effectiveness of the technologies proposed, the process modelin
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Lestari, Ressa Maria, Christa Rieza, Ayu Agustin, et al. "Development of Wood and Pulp Chemicals in Wood Sub Materials and Fiber Morphology as Teaching Material Supplements." Jurnal Penelitian Pendidikan IPA 9, no. 7 (2023): 5092–96. http://dx.doi.org/10.29303/jppipa.v9i7.2253.

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This development research aims to develop wood and pulp chemicals in wood and fiber morphology as supplementary teaching materials for students of the Chemical Education study program at Sriwijaya University using the 4STMD (Four Step Teaching Materials Development) method. The steps of the 4STMD method, namely the first stage is the selection stage, carried out by analyzing needs, curriculum and analyzing the material by looking for references in various sources. The second stage, namely the structuring stage, is carried out by adding or subtracting material and compiling the material. The th
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Wahab, R., R. Kamarulzaman, S. M. Razali, et al. "Physical and mechanical properties of Tectona grandis wood after oil heat treatment process." IOP Conference Series: Earth and Environmental Science 1053, no. 1 (2022): 012031. http://dx.doi.org/10.1088/1755-1315/1053/1/012031.

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Abstract A study was carried out to investigate the effect of an oil heat treatment process on the physical and mechanical properties of the 10 and 15-year-old cultivated Tectona grandis wood. All the wood specimens typically possess the sapwood having lighter colour than the dark colour heartwood, and turning these woods into products at this stage results in uneven colour due to the combination of sapwood and heartwood. The situation was to decrease the aesthetic value of the product. Therefore, the oil heat-treatment process enhanced and improved the physical and mechanical properties of th
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Pirayesh, Hamidreza, Abolghasem Khazaeian, Hossein Khanjanzadeh, and Arian Bahrinejad. "Optimum Condition of Manufacturing Wood-Based Composite from Mixture of Wood Particles/Walnut and Almond Shells." Key Engineering Materials 471-472 (February 2011): 91–96. http://dx.doi.org/10.4028/www.scientific.net/kem.471-472.91.

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The aim of this study was to manufacture wood based particleboard by using wood particles and agricultural residues of walnut and almond shells that have no economical value other than being used merely as low grade fuel and fodder and evaluating of its performance. This study was done at two stages; first determination of optimum press condition of producing boards from mixture of wood particles and walnut/almond shells and second stage was evaluation of the effect of different ratios of walnut/almond shells (10 and 30%) and the shell mesh size (≤ 0.7 and ≥ 2 mm) on their mechanical (modulus
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Rafiei, Rezvan, Mustapha Nourelfath, and Luis Antonio De Santa-Eulalia. "Dealing with Stochasticity in Wood Remanufacturing Operations Planning." International Journal of Mathematical, Engineering and Management Sciences 6, no. 2 (2021): 522–40. http://dx.doi.org/10.33889/ijmems.2021.6.2.032.

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The planning process of wood remanufacturing operations encompasses challenging characteristic, including divergent co-production (one log tree may produce several different products), alternative processes (different receipts exist to produce the same products), short order cycle, dynamic market behaviour (with highly varying demand) and imperfect raw materials (due to its biological nature, the yield vary considerably). To deal with this complexity, in this paper random demand is modeled as scenario tree and three new predictive multi-stage stochastic programming models are developed with mu
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Merganičová, K., and J. Merganič. "Coarse woody debris carbon stocks in natural spruce forests of Babia hora." Journal of Forest Science 56, No. 9 (2010): 397–405. http://dx.doi.org/10.17221/11/2010-jfs.

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Although coarse woody debris (CWD) represents one of the major carbon pools in natural forest ecosystems, little information is available about its CWD carbon stocks. This study demonstrates the importance of proper estimation of carbon stocks in CWD, which accounts for the decay process of CWD, on an example of a natural mountainous spruce forest located in Central Europe. The study accounts for aboveground coarse woody debris including standing dead trees, lying deadwood, and naturally formed stumps. Basic mensurational information (diameter, height, decay class) about dead wood was collecte
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Hammond, HE James, David W. Langor, and John R. Spence. "Saproxylic beetles (Coleoptera) using Populus in boreal aspen stands of western Canada: spatiotemporal variation and conservation of assemblages." Canadian Journal of Forest Research 34, no. 1 (2004): 1–19. http://dx.doi.org/10.1139/x03-192.

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Saproxylic beetles associated with Populus coarse woody material were sampled from two age classes of fire-origin aspen stands in north-central Alberta, Canada. A combination of rearings from wood bolts and window traps attached to snags yielded 9571 beetles representing 257 taxa over the 3-year period (1993–1995). We investigated faunal variation across regions, stand ages (mature, 60–90 years; old, >100 years), decay classes, wood types, and years in terms of species richness, abundance, and trophic differences. Although trophic structure was similar, faunal composition differed between t
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Arfianto, Widia, Hendro Joko Prasetyo, Fajar Budi Hartono, and Nurhasan Nugroho. "SISTEM INFORMASI PAKAIAN JADI BERBASIS WEB (STUDI KASUS WOOD PECKER STORE)." Journal of Computer Science and Technology (JCS-TECH) 1, no. 1 (2022): 22–26. http://dx.doi.org/10.54840/jcstech.v1i1.37.

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Wood Pocker Store is a distro that still uses word of mouth marketing model. as a consequence, the development of Wood Pecker Store’s marketing has been slow and pre-determined sales targets not yet reached. Website-based apparel information systems are one way of marketing model that is more effective than word of mouth. The website can reach a wider range of customers moreover the system can also serve orders for Wood Pocker Store products. This study aims to build a web-based apparel system. This system is expected to make Wood Pocker Store to expand the marketing reach of their products. I
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Anikeeva, Ksenia Gennadievna, and Ruslan Rushanovich Safin. "The effect of two-stage filler processing on the properties of a wood-polymer composite." Agrarian Scientific Journal, no. 6 (July 1, 2024): 88–98. http://dx.doi.org/10.28983/asj.y2024i6pp88-98.

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The use of composite materials based on wood filler and polymer has become widespread in many areas of industry, in particular, in construction. Composites can replace wood and plastic, they have the properties of these components, and therefore they are an excellent alternative for use as building materials. The relevance of the work lies in the creation of a composite material with a wood filler modified by an innovative method of double processing: thermal exposure followed by ozonation. The article evaluates the feasibility of using a two-stage processing method for wood filler. In order t
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Zbieć, Marcin, Justyna Franc-Dąbrowska, and Nina Drejerska. "Wood Waste Management in Europe through the Lens of the Circular Bioeconomy." Energies 15, no. 12 (2022): 4352. http://dx.doi.org/10.3390/en15124352.

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Over 30% of the world’s land area is covered by forests. Approximately 761 million m3 of wood is harvested annually in Europe (2017). The aim of the paper is to assess the amount of wood (biomass) produced in Europe per year, as it determines the amount of carbon dioxide released from wood because of combustion for heating and energy purposes. The circular bioeconomy was applied as the theoretical framework for this study. The study employs official statistics on material flows and also uses a technology assessment, which allows for more precise estimations. It can be estimated that 110 millio
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Saxena, Mohit, and MK Gupta. "Mechanical, thermal, and water absorption properties of hybrid wood composites." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 233, no. 9 (2018): 1914–22. http://dx.doi.org/10.1177/1464420718798661.

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The present study reveals the characterization of hybrid wood composites. The effect of hybridization of sal wood on the mechanical, thermal, and water absorption properties of mango wood reinforced epoxy polymer composite was studied. The wood composites were prepared by hand lay-up technique by maintaining a constant 33 wt% of total wood flour content with varying weight ratios. Mechanical properties such as tensile, flexural, and impact were investigated as per the ASTM standards. In addition, dynamic mechanical properties in terms of glass transition temperature [Formula: see text], storag
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SHI, JIANGTAO, JUNYI PENG, CHONGYANG XIA, and JIAN LI. "A COMPARISON OF METABOLITES IN WOOD-FORMING TISSUES FROM EIGHT COMMERCIAL TIMBER TREE SPECIES OF HEILONGJIANG PROVINCE IN CHINA." WOOD RESEARCH 66(5) 2021 66, no. 5 (2021): 746–61. http://dx.doi.org/10.37763/wr.1336-4561/66.5.746761.

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Four coniferous and four deciduous commercial tree species from Northeastern ofChina were selected to investigate the differences ofmetabolites in wood-forming tissues bygas chromatography-mass spectrometry. The results showed that the identified metabolites mainly consisted of neutral sugars, lipids, and organic acids. The mean contents of both arabinofuranose and 1-cyclohexene-1-carboxylic acid were higher in coniferous trees thanin deciduous ones. Similarly, the D-fructose and D-glucose content was significantly higherin coniferous trees than deciduous trees, but the total contents of these
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Zyryanov, Mikhail, Sergei Medvedev, Stepan Sergaev, and Anatoly Nikiforov. "Development of an algorithm for wood biomass processing at the stage of logging operations." IOP Conference Series: Earth and Environmental Science 1231, no. 1 (2023): 012073. http://dx.doi.org/10.1088/1755-1315/1231/1/012073.

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Abstract The paper presents an analysis of the volumes of harvested wood in the Krasnoyarsk Territory. The volumes of wood biomass utilized in the cutting area have been calculated. The urgent need for the use of logging waste as an additional raw material in the production of wood chips, softwood and wood flour, as well as wood fiber semi-finished product is discussed. A technological scheme for the processing of individual parts of wood biomass is proposed, which makes it possible to use logging waste as a raw material base. The aim of the work was to develop an algorithm for implementing th
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Fejfer, Mariusz, Jerzy Majka, and Magdalena Zborowska. "Dimensional Stability of Waterlogged Scots Pine Wood Treated with PEG and Dried Using an Alternative Approach." Forests 11, no. 12 (2020): 1254. http://dx.doi.org/10.3390/f11121254.

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Low-intensity drying is widely believed to protect waterlogged archeological wood against the adverse effects of dimensional alteration and cracking. However, slow drying generates substantial costs for the conservation process. This study compares the effects on conservation of highly-degraded sapwood (SW) and slightly-degraded heartwood (HW) from waterlogged archeological Scots pine wood treated with polyethylene glycol either as a mixture of polyethylene glycol (PEG) 400/4000 or PEG 2000 solution and air-dried using different approaches. The reference air-drying approach, using gradually de
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Yakovleva, E., and E. Titova. "Recycling of forestry waste." IOP Conference Series: Earth and Environmental Science 875, no. 1 (2021): 012045. http://dx.doi.org/10.1088/1755-1315/875/1/012045.

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Abstract The article examines the current state of wood waste recycling in the interests of ensuring sustainable development and minimizing the impact on climate change. Classification of wood waste based on the stage of the life cycle of a wood product has been carried out. The problem of organization of wood waste disposal and processing is relevant both directly in the forest industry and in the process of using wood since this leads to the preservation of primary wood material and significantly reduces the volume of deforestation. During the study methods of wood waste recycling and option
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Wang, Yujiao, Jing Xue, Yao Peng, and Jinzhen Cao. "Effect of photodegradation on fungal colonization on wood during initial stage of brown-rot decay." Holzforschung 76, no. 4 (2022): 356–67. http://dx.doi.org/10.1515/hf-2021-0168.

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Abstract Photodegradation and decay may happen simultaneously on wood under many exposure conditions. The aim of this study was to explore the effect of photodegradation on fungal colonization during initial stage of brown-rot decay of wood. For this purpose, southern pine (Pinus spp.) wood was exposed to accelerated UV weathering for different durations, and then decayed by a brown-rot fungus (Gloeophyllum trabeum). The changes in wood microstructure, chemical composition, surface color, crystallinity, fungal colonization pathways, and photodegradation products after weathering and decay were
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Jung, Ji Young, Jong Soo Jo, Young Wun Kim, Byeng Tae Yoon, Choon Gil Kim, and Jae Kyung Yang. "Optimization of Bio-based Succinic Acid Production from Hardwood Using the Two Stage pretreatments." Journal of the Korean Wood Science and Technology 41, no. 2 (2013): 111–22. http://dx.doi.org/10.5658/wood.2013.41.2.111.

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-, Zulfa Zakiah, and Masnur Turnip. "Improving The Growth And Adaptation Of The Black Orchid Plantlet (Coelogyne Pandurata Lindl) In Various Growing Media by Giving Plant Extracts as Biostimulants at The Acclimatization Stage." JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) 5, no. 2 (2023): 301–10. http://dx.doi.org/10.36378/juatika.v5i2.3113.

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 One of the most important stages in the process of transferring in vitro cultured seedlings to their natural environment is the acclimatization stage. The acclimatization stage is a critical period in plant propagation. The factors that most influence the growth of in vitro seedlings in the acclimatization process are suitable planting media and the administration of biostimulants. This study aimed to obtain the best planting medium and type of biostimulant for the growth of black orchid plantlets at the acclimatization stage. The study used a completely randomized design with a factori
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47

Miller, Anita Nina, and Christopher S. Walsh. "Growth and Seasonal Partitioning of Dry Matter in Eight-year-old ‘Loring’ Peach Trees." Journal of the American Society for Horticultural Science 113, no. 3 (1988): 309–14. http://dx.doi.org/10.21273/jashs.113.3.309.

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Abstract During the 1984 growing season, trees of ‘Loring’ peach (Prunus persica L. Batsch) on ‘Halford’ rootstocks were divided into the following components; fruit, leaves, shoots, 1-year wood, 2-year wood, frame, and roots. The sampling dates were coincident with key fruit and tree developmental stages: dormant, 15 days after full bloom, the end of Stages I and II of fruit developement, harvest, and 45 days after harvest (leaf fall). At the beginning of Stage II, four additional trees per remaining sampling date were hand-thinned to 15 cm between fruit. Initially, the mean dry weight of tre
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Zhao, Li Lin, Wei Wei, Xing Yao Zhang, David Kulhavy, and Jiang Hua Sun. "Low temperature induces two growth-arrested stages and change of secondary metabolites in Bursaphelenchus xylophilus." Nematology 9, no. 5 (2007): 663–70. http://dx.doi.org/10.1163/156854107782024866.

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AbstractThe third-stage dispersal juvenile (JIII) is the stage for survival and dispersal in the winter of the pine wood nematode, Bursaphelenchus xylophilus. Through investigations at different temperatures, we found two kinds of growth-arrested development, including the adult longevity extension and JIII formation induced by low temperature. They showed similar characters: densely packed lipid droplets and extended longevity. We considered that there were four stages in the formation of growth-arrested stages: induction, growth-arrested pathway, growth-arrested development and cold-toleranc
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Wang, Yan, Mikael E. Lindström, and Gunnar Henriksson. "Mild alkaline treatment activates spruce wood for enzymatic processing: A possible stage in bio-refinery processes." BioResources 6, no. 3 (2011): 2425–34. http://dx.doi.org/10.15376/biores.6.3.2425-2434.

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The structure of wood is so compact that enzymes are too large to penetrate into the structure and thereby attack the wood components for modifications that can be valuable for various purposes. Here we present a pretreatment method based on traditional kraft pulping, which opens the wood structure, so that enzymes are able to attack the wood components. To study this kind of chemical pretreatment, spruce wood samples were treated at similar conditions used in kraft cooking at varying intensities (H-factors). To verify if the structure was “opened” for enzymes, the pretreated wood samples were
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50

Rohanova, Alena. "Multi-stage parallel model in determining the quality of structural timber by the penetration method." Annals of WULS, Forestry and Wood Technology 114 (June 28, 2021): 101–9. http://dx.doi.org/10.5604/01.3001.0015.2388.

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Multi-stage parallel model in determining the quality of structural timber by the penetration method. Various devices are used in situ to diagnose the quality of structural timber. A semi-destructive method is used for the approximate determination of wood density. The Pilodyn 6J uses a depth of cut that correlates with wood density. The experiments were performed on spruce wood (Picea excelsa, Karst. L.). Boards 40 × 200 × 2500 mm3, were tested, n = 5 pcs. The density of wood was determined by the gravimetric method according to EN 408 (2013). The penetration depth (hp), number and width of a
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