Zobrazeno 1 - 10
of 238
pro vyhledávání: '"lcsh:NE1-978"'
Publikováno v:
Iranian Journal of Wood and Paper Industries, Vol 9, Iss 1, Pp 137-151 (2018)
The purpose of the research is to examine the effect of nanoclay particles and compatibilization of oxidized polypropylene in molten phase on the mechanical and physical properties of wood-plastic composite made from polypropylene and phragmites ausr
Publikováno v:
Iranian Journal of Wood and Paper Industries, Vol 9, Iss 1, Pp 117-126 (2018)
In this study, the pruning branches of mulberry trees mixed with industrial wood chips were used in the manufacture of particleboard. Then the physical and mechanical properties of the boards were investigated. For this purpose the study variables in
Publikováno v:
Iranian Journal of Wood and Paper Industries, Vol 9, Iss 1, Pp 27-40 (2018)
In this study the effect of coating with lacquer (Shellac) on acoustic properties by forced flexural vibration in free-free beam in white mulberry (Morus alba) and walnut (Juglans regia) have been investigated. For this purpose, the samples of both s
Publikováno v:
Iranian Journal of Wood and Paper Industries, Vol 9, Iss 1, Pp 15-26 (2018)
For this purpose, 9 hornbeam trees at 400, 800 and 1100 meters altitude from forestry projects of Meshelak Nowshahr were selected. 324 Clear samples were cut at mature wood in diameter breast height (DBH). The prepared samples (dimensions: 2.5 × 2.5
Publikováno v:
Iranian Journal of Wood and Paper Industries, Vol 9, Iss 1, Pp 65-74 (2018)
This paper investigated the radial variations of acoustical and mechanical properties of date palm from the pith to the bark. Cubic samples with dimensions of 2×2×35 cm3 (Radial× tangential ×longitudinal)) were taken in distance of 3, 6, 9, 12 an
Publikováno v:
Iranian Journal of Wood and Paper Industries, Vol 9, Iss 1, Pp 103-117 (2018)
The aim of current study is to determine the physical and mechanical properties of wood-based composites commonly used in Iran’s market before and after accelerated aging. Accelerated aging process performed based on ASTM D1037. Specimens of partic
Publikováno v:
Iranian Journal of Wood and Paper Industries, Vol 9, Iss 1, Pp 53-63 (2018)
Several factors cause the degradation of cellulose that the most important factor of them is Acidic Hydrolysis. Many historical books are gradually destroyed due to acidic hydrolysis and reduction of the degree of polymerization of cellulose. So deac
Autor:
maryam karim, mehrdad ghodskhah daryaei, javad torkaman, Reza oladi, Mohammad Ali Tajick Ghanbary
Publikováno v:
Iranian Journal of Wood and Paper Industries, Vol 9, Iss 1, Pp 75-85 (2018)
The aim of this study was to determinate the destructive behaviors of the white rot fungus Trametes versicolor on oak at different ambient temperatures and moistures. Hence, test fungus was collected from Khararod forest and after puricication, it wa
Publikováno v:
Iranian Journal of Wood and Paper Industries, Vol 9, Iss 1, Pp 1-14 (2018)
The last two decades consisted of a steady decrease in timber production levels in Iran in order to preserve the Hyrcanian forest as the only source of industrial wood. Consequently, under the so-called “the Forests’ Breathing Plan” in 2017 the
Publikováno v:
Iranian Journal of Wood and Paper Industries, Vol 9, Iss 1, Pp 87-101 (2018)
The purpose of this study is introduction new wood engineered products and predict their strength in combination with metal fasteners for timber structures construction. Investigation of steel dowel connections is an important issue that has attracte