نتایج جستجو برای: fagus orientalis
تعداد نتایج: 5319 فیلتر نتایج به سال:
BACKGROUND Allergy is a clinical disorder affecting the human population with wide geographical distribution. Platanus orientalis (P. orientalis) trees are planted in many countries and their pollen causes allergic reactions. Cyclophilin has recently been identified as one of the most important allergens of P. orientalis pollen. We aimed to clone and purify this allergen in Escherichia coli for...
In this study the impact of production work on the skid roads that have been carried out for many years by manpower animal power or machinery in a beech (Fagus orientalis Lipsky) stand have been examined. For this purpose, herbaceous understory, forest floor and soil samples were collected from the undisturbed area and the skid road. Weight per unit area (kg ha(-1)), organic matter ratio and mo...
Sapele, pine, limba, iroko, beech, and oak wood species are important used indoors outdoors, as supplied by furniture companies. It is known that the color changes in material when exposed to external environment. This an factor for outdoor use of material. In this study, parameters Scotch pine (Pinus sylvestris L.), oriental beech (Fagus orientalis limba (Terminalia superba Engl. et Diels), sa...
the aim of this study was to evaluate sound and decayed wood of iranianbeech (fagus orientalis) with a nondestructive stress wave method. wood samples,with dimensions of 9 by 19 by 200 mm were decayed in laboratory soil-bed tests,based on european pre-standard env-807. the decay was evaluated by measuringbending dynamic modulus of elasticity (moed) and longitudinal dynamicmodulus of elasticity ...
Bu çalışmanın amacı; kayın ağaçlarının yetiştiği ortamlardaki bazı ekosistem değişkenleriyle odunun fiziksel ve mekanik özelliklerinin nasıl değiştiğini ortaya koymaktır. Araştırma sahaları, Batı Karadeniz meşcerelerinden belirlenmiştir. Çalışma için kayının yayıldığı alt rakımdan üst rakıma kadar farklı yükselti bakılardan 6 saha seçilmiştir. altı sahanın her birinde sahayı temsil edecek 100 m...
PA1 01 Do biochemical and geochemical influences of acidic deposition affect dendroclimatic stability? PA2 Reconstruction of past climate variations: a challenge for the present and future PA2 10 Dendrochronological analysis of selected spruce stands in the Drahany highlands PA2 14 Studies with the Finnish over 7650-year pine chronology PA3 Tree rings and insects, diseases and anthropogenic fac...
The effects of soil pedoturbation (i.e., pit and mound microtopography, PM) on development of herbaceous plant species and woody species regeneration were examined in a temperate beech forest (Fagus orientalis Lipsky) in northern Iran. We recorded the vegetation in 20 pairs of disturbed and adjacent undisturbed plots and established a chronosequence of PM ages to study the effect of time since ...
The mechanical and acoustic properties of four commonly used wood species, including Populus tomentosa (Poplar), Swietenia mahagoni (Mahogany), Fagus orientalis (Beech), Fraxinus excelsior (Ash) were investigated through using three-point bending notched tests synchronizing with power spectrum analysis method fractal dimension theory. results showed that the modulus elasticity rapture changed i...
BACKGROUND In East Africa, Phlebotomus orientalis serves as the main vector of Leishmania donovani, the causative agent of visceral leishmaniasis (VL). Phlebotomus orientalis is present at two distant localities in Ethiopia; Addis Zemen where VL is endemic and Melka Werer where transmission of VL does not occur. To find out whether the difference in epidemiology of VL is due to distant composit...
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