Results 41 to 50 of about 7,533 (269)

Biomimetic Multiscale‐Structured Biomass Graphene/Polyurethane Sponge Composite for Flexible Pressure Sensors and Intelligent Cushioning Materials

open access: yesAdvanced Science, EarlyView.
In this study, a multifunctional conductive sponge composite (MAPU) is developed using a biomimetic, hierarchical construction strategy emulating the growth process of natural wood. This approach involved integrating biomass‐derived graphitic nanoflakes, synthesized from luffa vine (LVGN), into a polyurethane (PU) sponge matrix.
Runmin Xu   +9 more
wiley   +1 more source

Influence of morphometric parameters of relief on macro- and microstructure of wood Pinus silvestris L. in the North of the Russian plain

open access: yesJournal of Forest Science, 2019
Pine grows in a variety of environmental conditions which form several of technical properties of wood. The purpose of this study is an analysis of the morphology and the structure (i.e., the annual ring width, the latewood content, the tracheid wall ...
Nikolay A. Neverov   +7 more
doaj   +1 more source

Experimental observations and micromechanical modeling of successive-damaging phenomenon in wood cells' tensile behavior [PDF]

open access: yes, 2018
Single wood cells have complex tensile behavior. To gain insight into this complex functionality, the behavior of single wood tracheids was studied under controlled cyclic tensile loading.
Navi, Parviz, Sedighi-Gilani, Marjan
core   +1 more source

A Formable Wood‐Based Phase Change Materials with Enhanced Mechanical Properties and Thermal Efficiency for Smart Building

open access: yesAdvanced Science, EarlyView.
A wood‐form‐stable phase change composite featuring a tensile strength of 134.42 MPa, zero leakage under load, and a phase change enthalpy of 94.73 J g−1 is developed through a structural biomimicry and dual‐network reinforcement strategy. With its exceptional shape stability and remarkable phase change performance, this phase change composite is well ...
Ya Zhou   +5 more
wiley   +1 more source

Early ontogenetic male cone production in Pinus radiata : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Plant Biology at Massey University [PDF]

open access: yes, 2000
The tree breeding industry is interested in early ontogenetic male cone production in Pinus radiata in order to maximise the rate at which successive generations can be bred.
Welsh, Shayne Kevin
core  

Intra-annual tracheid production in balsam fir stems and the effect of meteorological variables [PDF]

open access: yes, 2005
Tracheid production of balsam fir in the Québec boreal forest (Canada) was studied by repeated cell analysis to investigate the influence of meteorological variables during the growing seasons 1998 to 2000.
Deslauriers, Annie, Morin, Hubert
core   +2 more sources

Experimental and Numerical Investigation of Cedar Façade Flame Spread With Respect to Sidewall

open access: yesFire and Materials, EarlyView.
ABSTRACT In response to growing energy conservation and carbon neutrality efforts, façade systems incorporating wooden materials have attracted increasing attention, which in turn raises concerns about their combustibility. This study presents a combined experimental and numerical investigation of flame spread along cedar façades.
Xukun Sun   +6 more
wiley   +1 more source

Effects of the position in a stem on the variability of tracheids in spruce (Picea abies /L./ Karst.) with the occurrence of reaction wood

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2010
The paper is aimed at the field of the microscopic structure of wood dealing with the description of the most important anatomic element in softwood – tracheids in a stem with the occurrence of reaction wood.
Vladimír Gryc, Hanuš Vavrčík
doaj   +1 more source

Flexural anisotropy of rift-sawn softwood boards induced by the end-grain orientation

open access: yesJournal of Wood Science, 2021
Inspired by the use of rift-sawn softwood board for covering curved surfaces in Kokerabuki, a traditional Japanese roofing method, we investigated the flexural anisotropy of wood caused by its end-grain orientation.
Sung-Wook Hwang   +3 more
doaj   +1 more source

Wood and fibre properties of fertilized Norway spruce [PDF]

open access: yes, 2003
Very intensive forest management is relatively unexplored in Sweden, and while there is interest in pursuing e.g. the use of fertilizers on selected areas, there is concern about the quality of the wood when growth rate increases.
Lundgren, Christina
core  

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