نتایج جستجو برای: preformed fibers

تعداد نتایج: 75040  

Journal: :DEStech Transactions on Engineering and Technology Research 2017

Journal: :جنگل و فرآورده های چوب 0
فاطمه رضائی کارشناس ارشد، گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران علی اکبر عنایتی استاد گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران محمد لایقی استادیار گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران حمیدرضا قاسمی منفرد راد استاد دانشکدة فنی مهندسی، دانشگاه تهران، تهران، ایران

in this research the possibility of vine pruning fibers in combination with wood fibers was studied in order to fabricate medium density fiberboard. vine pruning fibers content in three levels of 0/100, 30/70 and 60/40 (weight percent) and press time in three levels of 4, 5 and 6 minutes were as variable factors. one layer panels with a density of 0.65 g/cm3 and thickness of 15 mm were made. th...

Journal: :cell journal 0

introduction: to recognize the myelinated nerve fibers of the external and extreme capsules in human brain. materials and methods: 10 adult and normal brains (20 hemispheres) from both sexes were studied using 15 mm serial secions in all three cardinal planes after fixation and processing. these sections were stained by klüver – barrera and heidenhin – woelcke methods. results: some fibers from...

Journal: :Journal of Oral Science 2021

Purpose: To determine the impact of experimentally preformed peri-implant crater-shaped bone defects on evolution in situ microbiota and development compared to those induced over time by ligature placement only.

H. R. Pakravani M. Jamshidiii M. Latifiii

The application of fibers to reinforce cementitious materials is a well-known subject. At first, asbestos fibers are used in industrial process to produce fiber reinforced cement sheets. Thereafter, various types of synthetic fibers are produced and used as asbestos substitutes. The aim of the present work is to evaluate the effect of synthetic fibers on the flexural behavior of cementitious co...

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