نتایج جستجو برای: mature wood

تعداد نتایج: 107225  

Journal: :international journal of environmental research 2009
n. velmurugan s.s han y.s. lee

the major objectives of this study were to find out the mechanism behind the sapstaining fungal hyphae penetration into wood elements using electron microscope and to evaluate the exact role of phenolic compounds existing in wood vinegar towards the sapstaining fungal growth inhibition. to formulate the new environmental friendly wood preservative, we neutralized (to ph 7) wood vinegar with nao...

Journal: :علوم و تکنولوژی پلیمر 0
علی اکبر عنایتی امید حسینایی سی چوان وانگ سیداحمد میرشکرایی مهدی تجویدی

hemicellulose of southern yellow pine wood spices was extracted by pressurized hot water at three different temperatures: 140°c, 155°c and 170°c. compounding with pp (polypropylene) was performed by extrusion after preparing wood flour and sieving to determine its mesh size. the ratio of wood to polymer was 50:50 based on oven-dry weight of wood flour. all extraction treatments and control samp...

Journal: :علوم دامی ایران 0
الناز بابایی کارشناس ارشد گروه علوم دامی دانشکدۀ کشاورزی دانشگاه ارومیه رسول پیرمحمدی دانشیار گروه علوم دامی دانشکدۀ کشاورزی دانشگاه ارومیه

to evaluate the nutritive value in some lignocellulosic materials, 3 sets of experiments were conducted on aspen, and grape woods. to enhance the digestibility, the woods were treated with 5% naoh. throughout the first trial, chemical composition and digestibility coefficients of dry matter, organic matter and ndf of experimental feeds, ph of rumen, as well as palatability were evaluated while ...

2008
John T. Gray

Research Associate, Department of Biological Sciences, University of California, Santa Barbara, California, 93109. Abstract: Productivity and nutrient cycling parameters were measured in mature stands of chaparral and coastal sage scrub in the Santa Monica Mountains, California, USA. Net annual production and the magnitude of annual nutrient transfers were much greater in the evergreen chaparra...

2006
Ahmed Khwaja Dan Silverman Frank Sloan Yang Wang

We investigate the relationship between wealth, smoking, and individual propensities to plan. Planning propensity affects wealth but not smoking, suggesting that planning is not an allpurpose skill. Financial planning may draw on different abilities than those that facilitate smoking cessation. ∗ This research has been supported in part by a grant from the Robert Wood Johnson Foundation’s Subst...

2011
Kiyoto Maekawa Christine A. Nalepa

Subsocial, xylophagous cockroaches of the genus Cryptocercus exhibit a disjunct distribution, with representatives in mature montane forests of North America, China, Korea and the Russian Far East. All described species are wingless and dependent on rotting wood for food and shelter at all stages of their life cycle; consequently, their distribution is tied to that of forests and strongly influ...

Journal: :iranian journal of radiology 0
alpaslan yavuz department of radiology, yuzuncu yil university hospital, ercis yolu, geve kampus, van, turkey; department of radiology, yuzuncu yil university hospital, ercis yolu, geve kampus, van, turkey. tel: +90-5323424959, fax: +90-4322168352 kagan ceken department of radiology, akdeniz university, kampus antalya, turkey emel alimoglu department of radiology, akdeniz university, kampus antalya, turkey bahar akkaya department of pathology, akdeniz university, kampus antalya, turkey

teratomas are rare germline tumors that originate from one or more embryonic germ cell layers. teratoma of the kidney is extremely rare, and less than 30 cases of primary intrarenal teratomas have been published to date. we report the main radiologic features of an unusual case of mature cystic teratoma arising from the left kidney in a two-year-old boy. a left-sided abdominal mass was detected...

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