Article
Construction & Building Technology
Jian Hou, Assaad Taoum, Gregory Nolan, Nathan Kotlarewski
Summary: This study revealed a linear relationship between the flatwise and edgewise modulus of elasticity of plantation fibre-managed E. nitens sawn boards, with the average flatwise MoE being predicted through the linear relationship considering the contribution of the width of the boards.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Forestry
Yi Liang, Fangchao Cheng, Zhilin Jiang, Quanping Yuan, Jianping Sun
Summary: This study aimed to provide a frugal and high-efficiency method to predict the concentrated load of BWCCF by comparing models with two sets of parameters. The result showed that the designed model has the potential to be a useful, reliable, and effective tool for predicting concentrated load.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2021)
Article
Chemistry, Physical
Oswaldo Erazo, Judith Vergara-Figueroa, Paulina Valenzuela, William Gacitua
Summary: This research aimed to study the effect of tensile creep on the longitudinal stiffness of radiata pine wood. The results showed that the moduli of elasticity had no effect on the wood stiffness at the macroscopic level, but there might be changes at the microscopic level.
Article
Construction & Building Technology
C. Q. Chen, S. C. Zhou, S. T. Lai, M. D. Xu, Y. Xiao
Summary: This paper investigates the impact toughness and static bending strength of glued laminated bamboo (glubam) for potential use in engineered bamboo structures. The study compares two types of glubam, thin-strip and thick-strip, through impact pendulum and quasi-static bending tests. The results reveal differences in impact resistance and mechanical properties between different types of glubam and between dynamic and static bending.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Liting Cheng, Peng Zhao, Yajing Di, Jian Dai, Ziyi Wang, Xiaodong Guo, Wei Wang
Summary: This study accurately evaluated the modulus of elasticity in static bending of wooden components in ancient timberwork buildings using nondestructive testing. Several parameters were analyzed and a prediction model was established, showing the feasibility and effectiveness of the model.
Article
Chemistry, Multidisciplinary
Aurel Lunguleasa, Adela-Eliza Dumitrascu, Cosmin Spirchez, Valentina-Doina Ciobanu
Summary: This study investigated the influence of strand characteristics on the properties of oriented strand boards (OSB), finding that the specific surface area and thickness characteristics of the strands play a significant role in influencing the quality of OSB boards. Additionally, it was concluded that fast-growing species such as willow and poplar result in higher quality OSB boards.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Paper & Wood
Antal Kannar, Csilla Csiha
Summary: The study found that Pannonia poplar timber from Hungarian plantations has a high modulus of elasticity, making it suitable for structural purposes and exceeding the standard requirements for structural applications.
Article
Materials Science, Paper & Wood
Doan Van Duong, Masumi Hasegawa
Summary: Ultrasound was used to determine the mechanical properties of Acacia mangium wood from six different provenances in Vietnam, showing variations in ultrasound velocities and dynamic modulus of elasticity among the provenances, with positive correlations to other elastic properties.
Article
Construction & Building Technology
Tomas Kytka, Miroslav Gasparik, Lukas Sahula, Elham Karami, Danil Teterin, Sumanta Das, David Novak, Monika Sarvasova Kvietkova
Summary: This study investigates the effect of cyclic temperature variation on the bending properties of glued laminated timber made from combinations of wood species. The results show that the cycling of temperatures does not affect the density change in the beams. However, it negatively affects the modulus of elasticity (MOE) for single species beams and bending strength (MOR) for hardwood species. Overall, the bending strength of the combined glued laminated timber is increased.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Paper & Wood
Yeray Manuel Lopez-Gomez, Aitor Barbero-Lopez, Oscar Gonzalez-Prieto, Martti Venalainen, Antti Haapala
Summary: This study tested the impact of different treatments on wood decay in various wood species, and evaluated the effectiveness of thermal modification and linseed oil-based varnish in mitigating the leaching of water-soluble chemicals. The results showed that thermal and chemical fixation methods for water-soluble tannins were beneficial in all wood species, and varnish was the most effective treatment against decay.
Article
Materials Science, Paper & Wood
Manish Ranjan, Anand Nandanwar, Pradeep Kumar Kushwaha
Summary: This study compared the physical and mechanical properties of plywood panels made from Eucalyptus grandis and Populus deltoids. The eucalyptus plywood showed higher modulus of rupture and modulus of elasticity compared to poplar plywood.
Article
Materials Science, Paper & Wood
Rubin Shmulsky, Laurice Mara Spinelli Correa, Franklin Quin
Summary: Developing engineering standards for timber- and other wood-based mats suitable for supporting construction vehicles is urgently needed. This study focused on evaluating the strength and stiffness values of a commercially sourced industrial bamboo mat, showing that the mechanical property values of the bamboo mat were at least 25% less than those of mixed hardwood timber mats.
Article
Materials Science, Paper & Wood
Rosie Sargent, C. A. Lenth
Summary: Wood processing operations, like timber drying, rely on modelling from experimental data, and this research presents the Modulus of Elasticity (MoE) and yield stress in compression and tension of Pinus radiata trees under varying moisture content and temperature conditions. The results show that both MoE and yield stress decrease with increasing moisture content and temperature, especially at high temperature and high moisture content. Furthermore, there are differences between compression and tension tests, as well as variations based on grain direction and test conditions, emphasizing the importance of considering applied force direction when modelling wood behavior.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Plant Sciences
Alex B. Baer, Jaycie C. Fickle, Jackeline Medina, Catherine Robles, R. Brandon Pratt, Anna L. Jacobsen
Summary: The study found that xylem functions vary at different positions within trees, with shoots having stronger and stiffer xylem while roots store more water. There are trade-offs among xylem functions between roots and shoots.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Agronomy
Lekshmi S. Manasa, Madhusmita Panigrahy, Kishore Chandra Panigrahi, Gayatri Mishra, Sanjib Kumar Panda, Gyana Ranjan Rout
Summary: Mungbean is an important legume crop known for its high protein content and nitrogen-fixing abilities. However, it is susceptible to low temperatures at all stages of plant growth, leading to severe yield losses. Through germination-based screening of 204 germplasms, a cold-tolerant genotype (PAU911) was identified and key germination parameters related to cold tolerance were found. This study provides valuable information for breeding programs aiming to improve the sustainable growth of mungbean.
Article
Biotechnology & Applied Microbiology
Shaofeng Zhou, Wenwen An, Cuifen Gan, Meiying Xu
Summary: Bacteria generate and release extracellular reactive oxygen species (eROS), which significantly contribute to the natural ROS pool and play a crucial role in metabolic interactions of bacteria with their environment. Understanding the behavior of eROS-generating bacteria and its environmental implications is of great importance in the cycling of biogeochemical elements, transformation of organic matter, and regulation of antibiotic resistance genes.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2024)
Article
Biotechnology & Applied Microbiology
Ji-Dong Gu, Tim Ford, Bryce Mitton, Ralph Mitchell
Summary: Plastics and microplastics are widely present and accumulating in the environment, leading to increasing public attention. In addition to packaging plastics, materials from industries such as electronics, space and aviation are also accumulating, but receiving less attention. The production of degradable and biodegradable plastics is seen as a way to reduce environmental impacts, but enhancing the non-degradability of functional polymers is also a feasible option. Microbial colonization and deterioration pose significant challenges to these materials.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2024)
Article
Biotechnology & Applied Microbiology
Justyna Bohacz, Michal Mozejko
Summary: This study evaluated the keratinolytic activity of 37 strains of Trichophyton ajelloi and found that pigmented strains isolated from loamy soil were more efficient in degrading native feather keratin, while non-pigmented strains isolated from chernozem showed better abilities. The keratinolytic activity increased over time, as evidenced by the increase in extracellular keratinase activity and release of soluble proteins and peptides. Protease activity peaked in the first 7 days and again on day 28 of culture. The release of ammonium and sulfate ions, associated with an increase in pH, reached its maximum on day 21. Three pigment-producing strains were among the most active in releasing large amounts of ammonium and sulfate ions. The biodegradation of feather waste by Trichophyton ajelloi strains can be used to produce fertilizers suitable for plants with high sulfur requirements.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2024)
Article
Biotechnology & Applied Microbiology
Joseph M. Suflita, Brenda J. Little
Summary: This article reviews the major achievements of the International Biodeterioration & Biodegradation Society (IBBS) on its 50th anniversary and provides recommendations for addressing new challenges and developments based on personal experiences.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2024)
Article
Biotechnology & Applied Microbiology
Zhenyan Lin, Tuo Jin, Xin Xu, Xiao Yin, Dan Zhang, Mengjiao Geng, Chunyu Pang, Gongwen Luo, Lizhi Xiong, Jianwei Peng, Jiangchi Fei
Summary: The incomplete recycle of residual mulch film (RMF) in recent years has led to an increase in plastic fragments in soil, posing a serious threat to the soil ecological environment. In this study, seven potential plastic-degrading microorganisms were screened and identified from film-mulched vegetable fields. The degradation ability experiments showed that both single strains and mixed strains demonstrated varying levels of degradation of RMF.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2024)
Article
Biotechnology & Applied Microbiology
Tiina Belt, Michael Altgen, Muhammad Awais, Martin Nopens, Lauri Rautkari
Summary: This study investigated the degradation of heat-treated wood by brown rot fungi and found that the decay increased the hygroscopicity of wood in the decaying state. Furthermore, it was observed that heat-treated samples were more susceptible to fungal decay compared to untreated samples, which may be related to the increase in moisture content.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2024)
Article
Biotechnology & Applied Microbiology
Marta Cicardi, Davide Bernasconi, Luca Martire, Linda Pastero, Giulia Caneva, Sergio E. Favero-Longo
Summary: This study investigated the phenomenon of Centimetric circular areas Uncolonized by Microbial Biofilms (CUMBs) on natural and heritage stone surfaces. The analysis revealed a compatibility in distribution and size between CUMBs and lichen thalli, suggesting a lichen origin for some CUMBs. Microscopic analysis also showed similar modifications in marble layers beneath CUMBs and lichens, indicating a possible alteration of stone properties by lichens.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2024)