Results 21 to 30 of about 1,129,125 (298)
PENGAWETAN LIMA BELAS JENIS KAYU SECARA RENDAMAN PANAS-DINGIN DENGAN BAHAN PENGAWET BFCA
Wood samples of 15 species measuring 5 x 5 x 30 cm were treated with 5 percent of BFCA preservative by hot and cold soaking. Hot soaking period was respectiuely 1 hour, 3 houn and 5 hours, with temperature range of 65ᵒC - 70ᵒ C ...
Sasa Abdurrohim, Barly Barly
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Multifunctional Polyurethane Composites with Coffee Grounds and Wood Sawdust
Currently, the fundamental activity that will allow for the development of an economy with closed circulation is the management of food waste and production waste for the preparation of biocomposites. The use of waste materials of natural origin allows for the creation of innovative composites with improved physicochemical and functional properties ...
Przemysław Bartczak +4 more
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PENGAWETAN LIMA BELAS JENIS KAYU IRIAN JAYA SECARA RENDAMAN DINGIN
Fifteen wood species from Irian Jaya with sample test pieces measuring 5 x 5 x 60 cm, and water content from 20. 0-21.4 percent, were subjected to cold soaking treatment, using 5 and 10 percent concentration of BFCA preservative, for ...
Sasa Abdurrohim +2 more
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Abiotic Determinants of the Historical Buildings Biodeterioration in the Former Auschwitz II – Birkenau Concentration and Extermination Camp [PDF]
The paper presents the results of a study conducted at the Auschwitz-Birkenau State Museum in Oświecim on the occurrence of biodeterioration. Visual assessment of the buildings revealed signs of deterioration of the buildings in the form of dampness ...
Agnieszka Zydzik-Białek +9 more
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Analysis on Storage Off-Gas Emissions from Woody, Herbaceous, and Torrefied Biomass
Wood chips, torrefied wood chips, ground switchgrass, and wood pellets were tested for off‑gas emissions during storage. Storage canisters with gas‑collection ports were used to conduct experiments at room temperature of 20 °C and in a laboratory oven ...
Jaya Shankar Tumuluru +6 more
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Black spruce trees lean to form “drunken” forest on degrading permafrost; however, the causes of tree leaning on continuous permafrost remain unclear. Leaning events are recorded by reaction wood formation in tree rings, and it remains unclear what soil ...
Kazumichi Fujii +3 more
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Determination of Wood Fractional Composition Effect on Gasification Process
The heating value of synthesis gas derived as a result of the fuel gasification can vary depending on various factors. The main factors that affect the process of gasification is the fractional composition of wood; the amount of air fed to the ...
Stepan Lys, Yosyph Mysak, Taras Kravets
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Wood decay have the greatest impact on in-service wood structural elements. In most cases, decay is associated with excessive accumulation of moisture in the wood.
M. Conde-García +3 more
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Heat absorption properties of ground material for solar chimney power plants [PDF]
One of the major challenges to the widespread application of the solar chimney power plant is its low-power conversion efficiency because of the three technological processes involved.
Al-Azawiey, S. S., Hassan, S. B.
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Level locomotion in wood ants: evidence for grounded running [PDF]
AbstractIn order to better understand the strategies of locomotion in small insects, we have studied continuous level locomotion of the wood ant species Formica polyctena. We determined the three-dimensional centre of mass kinematics during the gait cycle and recorded the ground reaction forces of single legs utilizing a self-developed test site.
Lars, Reinhardt, Reinhard, Blickhan
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