نتایج جستجو برای: outer
تعداد نتایج: 63920 فیلتر نتایج به سال:
wood farming and especially poplar plantation is a key answer to the increasing demand of raw materials in wood and cellulosic industries. according to the diversity of wood applications, taking into account the wood quality and grading by wood farmers/buyers as well as its quantity can lead to an optimal management of production and consumption. in this regard, it is necessary to introduce and...
o bjectives: headgears are among the effective orthodontic appliances to achieve treatment goals. unilateral molar distal movement is sometimes needed during an orthodontic treat- ment, which can be achieved by an asymmetric headgear. different unilateral headgears have been introduced. the main goal of this study was to analyze the force system of uni- lateral expanded outer bow asymmetric hea...
Functionally graded aluminium/zirconia metal matrix composite was fabricated using stir casting technique followed by horizontal centrifugal casting process and a hollow cylindrical functionally graded composite (150 x 150 x 16 mm) was obtained with centrifuging speed of 1200 rpm. The microstructural evaluation and hardness test was carried out on the outer and inner surface of the functionally...
The Evaluation of the Survival Rate and Motility of Freeze-Thawed Mouse Sperm -Frozen in and out of the Epididym. Saki GH, Hashemitabar M, Ghavvamizadeh B, Safikani Z, Bijannejad D, Sobhani A Corresponding Authoŕ s Address: Department of Anatomy, Tehran,University of Medical Science, Tehran, Iran. Email: [email protected] Background & objectives: Direct contact between a sperm cell and cryopr...
How beta-barrel proteins are inserted into cellular membranes is poorly understood. New work has identified a sorting and assembly machinery that chaperones beta-barrels into the mitochondrial outer membrane and is evolutionarily conserved from bacteria to man.
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