Applied SciencesSpiral grains are one of the most important tree growth defects that can remarkably affect the shape stability of lumber. This growth defect is observed by an oblique arrangement of axially oriented cell elements in the wood.
Peter Vilkovský +3 more
doaj +1 more source
Determination of Screw and Nail Withdrawal Strengths in Parallel and Perpendicular to Grain of some Hardwoods of Iran [PDF]
Iranian Journal of Wood and Paper Industries, 2013 In this study, screw and nail withdrawal strengths parallel and perpendicular longitudinal to grain of some hardwoods; oak (Quercus castaneifolia), hornbeam (Carpinus betulus), beech (Fagus orientalis), Sycamore (Platanus oriantalis) and poplar (Populus ...
Sadegh Maleki +2 more
doaj
Reviewing effect utilization of birch species in optical and mechanical pulp & CMP properties from MWPI. [PDF]
Iranian Journal of Wood and Paper Industries, 2015 In the present research , the effect of utilizing a mixture of Birch with Hornbeam & Beech species (in the comparison with sample CMP( 75% Hornbeam 25% Beech) , on the mechanical and optical properties of papers produced within the domain of Freeness ...
mojtaba goli +2 more
doaj
Establishing mathematical model withdrawal resistance of wooden dowel in plywood [PDF]
Iranian Journal of Wood and Paper Industries, 2012 The goal of this study was to investigate withdrawal resistance of doweled joint with plywood members and establishing a predicting mathematical model for such joints in which regularly dowel is installed perpendicular to surface and also edge of plywood.
Mosayeb Dalvand +3 more
doaj
Biometrical properties of hornbeam fibers from Astara
تحقیقات علوم چوب و کاغذ ایران, 2011 This research was performed to investigate fiber biometrical properties (length, diameter and fiber thickness) of hornbeam species from Astara in Iran. Initially, disks were prepared with three trees of hornbeam species and then fiber isolation was carried out using Franklin method.
Meisam Aliabadi +3 more
openaire +1 more source
The influence of pre-hydrolysis on the delignification of Hornbeam wood
تحقیقات علوم چوب و کاغذ ایران, 2018 In this research, the influence of two temperatures (60 and 90°C) and three dosages of sodium hydroxide (5, 7.5 and 10%, based on the dry weight) on hornbeam wood chips alkaline pre-hydrolysis and soda pulping was studied. Soda pulping of both pre-hydrolyzed and control chips were conducted applying constant pulping variables.
Abdolrahim Mohebalian +3 more
openaire +1 more source
Engineering properties of Hornbeam wood in Veisar region
تحقیقات علوم چوب و کاغذ ایران, 2000 To determine major engineering properties of Hornbeam wood (Carpinus betulus L.) in Vaisar region of Caspian Forests (North of Iran), adopting ASTM (D-143) Standard specifications, the matched small clear specimens were prepared. The test materials were derived from three randomly chosen trees.
Abdolrahman Hosseinzadeh +2 more
openaire +1 more source
Shape Changes in Hornbeam (Carpinus betulus L.) Lumber Induced by Spiral Grain
BioResourcesHornbeam (Carpinus betulus L.) wood often has a spiral grain character, which contributes to shape instability in the resulting products. Spiral grain refers to the deviation of wood fibers from the longitudinal axis. This study identified and quantified
Peter Vilkovský +3 more
doaj
Quantitative and qualitative characteristics of Persian oak (Quercus macranthera) and oriental hornbeam (Carpinus orientalis) on various land forms in Andabil forest, Khalkhal region [PDF]
مجله جنگل ایران, 2012 In order to study the quantitative and qualitative traits of Persian oak (Quercus macranthera F&M.) and oriental hornbeam (Carpinus orientalis Mill.) one of the most important habitats of these two species in Khalkhal was selected.
doaj
Genetic Potential for N₂O Metabolism in Tree Tissues: Insights From Nitrogen Cycling Gene Prevalence and nosZ Diversity Across Tree Species. [PDF]
Microb EcolThiyagarasaiyar K +9 more
europepmc +1 more source