Results 101 to 110 of about 12,678 (207)

Engineering properties of Hornbeam wood in Veisar region

open access: yesتحقیقات 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

Leaf diffusion resistance pattern in an oak-hornbeam forest

open access: yesBiologia Plantarum, 1979
Four tree, five shrub, and ten herbaceous species growing naturally in an oak-hornbeam forest were used for simultaneous study of the leaf diffusive resistances in the course of several summer days. Absolute minima of the stomatal resistance in the sun tree, the shrub, and the herbaceous species leaves were 1.7 to 6.2 s cm-1, 6.1 to 10.8 s cm-1, and 4 ...
openaire   +1 more source

Reviewing effect utilization of birch species in optical and mechanical pulp & CMP properties from MWPI. [PDF]

open access: yesIranian 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  

BIOMASS PRODUCTION AS AN ENERGY SOURCE IN COPPICES OF THE PROVINCE OF FLORENCE, ITALY: CONSIDERING THE ECONOMIC AND EMPLOYMENT ASPECTS [PDF]

open access: yes
Coppice management of forests in Tuscany, and particularly in the province of Florence, has had a chequered history, which has set the stage for the present problems of forestry policy. In Italy, the period between 1955 and 1975 saw a marked reduction in
Bernetti, Iacopo   +2 more
core   +1 more source

Data on the terrestrial Isopoda fauna of the Alsó-hegy, Aggtelek National Park, Hungary [PDF]

open access: yes, 2008
Field surveys in dolines of Alsó-hegy, Aggtelek Karst (Hungary) yielded 10 terrestrial isopod species. Despite of the relatively low species richness, we would like to emphasize the high naturalness of the area indicated by the presence of endemic and
Farkas, Roland   +7 more
core  

Establishing mathematical model withdrawal resistance of wooden dowel in plywood [PDF]

open access: yesIranian 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  

Die Baumkronenspinnen (Araneae) des Leipziger Auwaldes [PDF]

open access: yes, 2012
The canopy spiders of the floodplain forest in Leipzig have become a focus of ecological studies in recent years. In 2006 we sampled 30 tree canopies in the ‘Burgaue’ nature reserve with pyrethrum knock-down fogging, recording 502 adult spiders belonging
Floren, Andreas, Otto, Stefan
core  

History, origins and importance of temporary ponds [PDF]

open access: yes, 2001
In Europe, temporary ponds are a naturally common and widespread habitat occurring, often in abundance, in all biogeographical regions from the boreal snow-melt pools of northern Scandinavia to the seasonally inundated coastal dune pools of southern ...
Biggs, Jeremy   +4 more
core  

Phytoseiid mites (Acari, Mesostigmata) from the rest areas of Hungarian highways [PDF]

open access: yes, 2014
The mesostigmatid mite family Phytoseiidae was surveyed in rest areas of Hungarian highways by examination of leaves collected from arboreal plants. All together 15 species, ca. 20 % of the Hungarian Phytoseiid fauna were recorded.
Karap, Anita Kitti   +2 more
core  

CHANGES IN THE CHEMICAL STRUCTURE OF THERMALLY TREATED WOOD [PDF]

open access: yes, 2010
Changes in the chemical structure of hornbeam and uludag fir woods during thermal treatment were investigated at three temperatures (170, 190, and 210 oC) and three durations (4, 8, and 12 hours).
Birol Uner   +4 more
core  

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