Wood and Fiber Science最新文献_第2页

Flexural and Tensile Properties of f2x6 and 2x10 Southern Pine Lumber f2x6和2x10南松木材的弯曲和拉伸性能

IF 1.4 4区工程技术

Wood and Fiber Science Pub Date : 2022-11-23 DOI: 10.22382/wfs-2022-24

Marly G.C. Ucategui, F. França, R. D. Seale, C. A. Senalik, R. Ross

引用次数: 0

Performance of timber board models for prediction of local bending stiffness and strength - with application on Douglas fir sawn timber 预测局部抗弯刚度和强度的木板模型的性能——在花旗松锯材上的应用

IF 1.4 4区工程技术

Wood and Fiber Science Pub Date : 2022-11-23 DOI: 10.22382/wfs-2022-22

A. Olsson, G. Pot, J. Viguier, M. Hu, J. Oscarsson

引用次数: 1

Investigation of Biogass Digestate as Fiber Materials for Composites; 生物质沼渣作为复合材料纤维材料的研究

IF 1.4 4区工程技术

Wood and Fiber Science Pub Date : 2022-11-23 DOI: 10.22382/wfs-2022-23

Marion Gebbardt, A. Lemmer

引用次数: 0

Characterization and Analysis of Very Volatile Organic Compounds and Odors from Medium Density Fiberboard Coated with Differenet Lacquers Using Gas Chromatography Coupled with Mass Spectrometry and Olfactormetry 气相色谱-质谱联用及嗅觉法分析不同漆层中密度纤维板中挥发性有机物及气味

IF 1.4 4区工程技术

Wood and Fiber Science Pub Date : 2022-09-14 DOI: 10.22382/wfs-2022-19

Weidong Wang, Jun Shen, Wang Xu, Meilin Liu, Huiyu Wang, Yu Chen, Anlei Du

引用次数: 1

The Influence of Foam Discontinuity in the Shear Zone of Structural Insulated Panel Beams 泡沫不连续性对结构隔热板梁剪切区的影响

IF 1.4 4区工程技术

Wood and Fiber Science Pub Date : 2022-09-14 DOI: 10.22382/wfs-2022-18

R. Shmulsky, L. Khademibami, C. A. Senalik, R. D. Seale, R. Ross

引用次数: 0

Reviewed Commentary: Factory-Grown Wood, the Future of Forestry? 评论:工厂种植的木材，林业的未来?

IF 1.4 4区工程技术

Wood and Fiber Science Pub Date : 2022-09-14 DOI: 10.22382/wfs-2022-20

E. Hansen, A. Beckwith, C. Lancaster, S. Leavengood

{"title":"Reviewed Commentary: Factory-Grown Wood, the Future of Forestry?","authors":"E. Hansen, A. Beckwith, C. Lancaster, S. Leavengood","doi":"10.22382/wfs-2022-20","DOIUrl":"https://doi.org/10.22382/wfs-2022-20","url":null,"abstract":". Recent developments in factory-grown foods suggest that factory-grown wood (FGW) may be on the horizon. In fact, recent work at Massachusetts Institute of Technology introduces tunable plant-based materials, an early indicator of what may evolve into a new source of raw material for forest sector companies, and others. Industry and academia would be wise to monitor developments in this ﬁ eld as they may present signi ﬁ cant opportunities and/or adjustments for both. We explore the state-of-the-art in this budding area of science and contemplate implications of successfully growing wood or other lignocellulosic materials in factories. Given a changing climate and focus on carbon emissions, the pressure to drastically reduce CO 2 production will continue climb. Could reduction of their footprint via FGW be an important part of this equation for forest sector companies, going beyond the need to “ make every tree count ” ? In other words, might FGW present an environmental and climate protection breakthrough? Or might it simply trade forest-based environmental impacts for others? What other consequences does FGW promise for companies? And what might it mean for wood science programs, critical suppliers of research and development and skilled employees for the industry? We explore each of these questions and contemplate potential actions and outcomes.","PeriodicalId":23620,"journal":{"name":"Wood and Fiber Science","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46592394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Variation of Chemical Properties, Crystalline Structure and Calorific Values of Native Malaysian Bamboo Species 马来西亚本地竹的化学性质、晶体结构和热值的变化

IF 1.4 4区工程技术

Wood and Fiber Science Pub Date : 2022-09-14 DOI: 10.22382/wfs-2022-17

S. Osman, Mansur Ahmad, Mohd Mazaarudin Zakaris, B. F. A. Bakar, F. Abu, S. H. Kamarudin, Shabril Anuar Babari, Reza Hosseinpourpia

引用次数: 0

Effect of Tool Tip Radius on ring Debarker Performance 刀尖半径对环去巴克性能的影响

IF 1.4 4区工程技术

Wood and Fiber Science Pub Date : 2022-09-14 DOI: 10.22382/wfs-2022-16

C. B. Cáceres, R. Hernández, Jedi Rosero-Alvarado, Rentry Augusti Nurbaity

{"title":"Effect of Tool Tip Radius on ring Debarker Performance","authors":"C. B. Cáceres, R. Hernández, Jedi Rosero-Alvarado, Rentry Augusti Nurbaity","doi":"10.22382/wfs-2022-16","DOIUrl":"https://doi.org/10.22382/wfs-2022-16","url":null,"abstract":". The effects of the tool tip radius on debarking quality of unfrozen and frozen black spruce logs were studied. The power, energy consumption, and torque on frozen conditions were also studied. A prototype one-arm ring debarker was used. The experiment consisted of debarking logs using three tool tip radii (40, 180, and 300 m m) for each temperature ( 2 20 (cid:1) C and 1 20 (cid:1) C). The rotational and feed speeds, tip overlap, and rake angle were kept constants. Debarking quality was evaluated by two criteria: the proportion of bark remaining on log surfaces and the amount of wood in bark residues (WIB). Log characteristics, used as covariates, ie dimensions, eccentricity, bark thickness, knot features, bark/wood shear strength (BWSS), basic densities and moisture contents of sapwood and bark were measured, as well as total removed material after debarking. The results showed that tool tip radius had a signi ﬁ cant effect on debarking quality of frozen and unfrozen logs. The proportion of bark on log surfaces increased and the amount of WIB decreased as tip radius increased. At the same applied radial force, a wider tip radius showed a shallower tip penetration leaving bigger regions of bark on the log surfaces. In contrast, a narrower tip radius showed a deeper tip penetration resulting in important wood ﬁ ber tear-out. The bark thickness and inner bark MC also affected debarking quality. The mean power, mean torque, and energy consumption increased as the tip radius decreased. However, this effect will depend on the choice of the applied radial force during debarking. Motor performance was also affected by the total removed material, log diameter, and BWSS. Overall, the results highlight the importance of choosing an adequate combination of tool tip radius and applied radial force to obtain the most pro ﬁ table debarking quality with an ef ﬁ cient energy consumption.","PeriodicalId":23620,"journal":{"name":"Wood and Fiber Science","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43786981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Wood Properties of Nine Acetylated Tropical Hardwoods from Fast-Grown Plantations in Costa Rica 哥斯达黎加速生种植园九种乙酰化热带硬木的木材特性

IF 1.4 4区工程技术

Wood and Fiber Science Pub Date : 2022-06-03 DOI: 10.22382/wfs-2022-14

R. Moya, Johanna Gaitán-Alvarez, A. Berrocal, C. B. Cáceres, R. Hernández

{"title":"Wood Properties of Nine Acetylated Tropical Hardwoods from Fast-Grown Plantations in Costa Rica","authors":"R. Moya, Johanna Gaitán-Alvarez, A. Berrocal, C. B. Cáceres, R. Hernández","doi":"10.22382/wfs-2022-14","DOIUrl":"https://doi.org/10.22382/wfs-2022-14","url":null,"abstract":". The treatment of acetylation on tropical woods is in ﬂ uenced by their different levels of permeability and how these affect the weight percentage gain (WPG) in acetylated wood. The objective of this study was to identify the effect of acetylation on physical properties, hygroscopic and dimensional stability, wetting rate, and durability of nine tropical species of hardwoods used for commercial reforestations in Costa Rica. The results showed that WPG varied from 2.2% to 16.8% among species. Positive signi ﬁ cant correlations were observed between WPG and two parameters of dimensional and hygroscopic stability, whereas a negative correlation was observed with water absorption (WA). For species with a WPG of over 10% ( Vochysia ferruginea , Vochysia guatemalensis , Cordia alliodora , and Enterolobium cyclocarpum ) wetting rate, hygroscopic stability, and resistance to biological attack showed an increase while swelling, and WA decreased. For these species, the best behaviors were obtained with an acetylation time of 2.5 h. The same properties of wood in species with a WPG under 5% were found to be less affected by the different acetylation times and showed little difference in relation to untreated wood. Finally, the analysis showed that the dimensional stability obtained was attributed to the reduction of the absorptive capacity of the acetylated wood.","PeriodicalId":23620,"journal":{"name":"Wood and Fiber Science","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44591151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Comparison of the Effect of TMP Pitch Control Agents with Different Mechanisms 不同机理TMP调沥青剂的效果比较

IF 1.4 4区工程技术

Wood and Fiber Science Pub Date : 2022-06-03 DOI: 10.22382/wfs-2022-12

Chul-Hwan Kim, Min-Seok Lee, Ji-Young Lee, Jeong-Heon Ryu, Jinhyeok Park, Jin-Hong Park

引用次数: 0