Results 21 to 30 of about 1,129,125 (298)

PENGAWETAN LIMA BELAS JENIS KAYU SECARA RENDAMAN PANAS-DINGIN DENGAN BAHAN PENGAWET BFCA

open access: yesJurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2017
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
doaj   +1 more source

Multifunctional Polyurethane Composites with Coffee Grounds and Wood Sawdust

open access: yesMaterials, 2022
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
openaire   +2 more sources

PENGAWETAN LIMA BELAS JENIS KAYU IRIAN JAYA SECARA RENDAMAN DINGIN

open access: yesJurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2017
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
doaj   +1 more source

Abiotic Determinants of the Historical Buildings Biodeterioration in the Former Auschwitz II – Birkenau Concentration and Extermination Camp [PDF]

open access: yes, 2014
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
core   +2 more sources

Analysis on Storage Off-Gas Emissions from Woody, Herbaceous, and Torrefied Biomass

open access: yesEnergies, 2015
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
doaj   +1 more source

Soil conditions required for reaction wood formation of drunken trees in a continuous permafrost region

open access: yesArctic, Antarctic, and Alpine Research, 2020
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
doaj   +1 more source

Determination of Wood Fractional Composition Effect on Gasification Process

open access: yesEnergy Engineering and Control Systems, 2016
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
doaj   +1 more source

Experimental evaluation of the effect of different design conditions on the risk of decay in solid wood exposed to outdoor climate

open access: yesMateriales de Construccion, 2021
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
doaj   +1 more source

Heat absorption properties of ground material for solar chimney power plants [PDF]

open access: yes, 2016
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.
core   +1 more source

Level locomotion in wood ants: evidence for grounded running [PDF]

open access: yesJournal of Experimental Biology, 2014
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
openaire   +2 more sources

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