منابع مشابه
The effect of high-energy electron beam on drawn and undrawn high density polyethylene fibers
HDPE monofilaments were obtained using different extruders and drawn by post-extruder equipments. After solidification, drawn and undrawn monofilaments (draw ratio 7:1) were irradiated with 10 MeV electron beams in air at room temperature at 25, 50, 75, 100 and 125 kGy dose ranges to induce a network structure. HDPE crosslinking was studied on the basis of gel content measurements. The fibers w...
متن کاملRadiation Shielding Features of Ordinary and High-Density Concretes Loaded With PbO Micro and Nanoparticles against High-Energy Photons
Introduction: The present study aimed to evaluate the impact of PbO nano and micro-sized fillers on ordinary and heavy concretes for different photon energies. Material and Methods: The MCNPX Monte Carlo code (version 2.6.0) was used for all simulations in the present study. A model of narrow-beam geometry was validated and utilized to calcul...
متن کاملthe relationship between academic self-concept and academic achievement in english and general subjects of the students of high school
according to research, academic self-concept and academic achievement are mutually interdependent. in the present study, the aim was to determine the relationship between the academic self-concept and the academic achievement of students in english as a foreign language and general subjects. the participants were 320 students studying in 4th grade of high school in three cities of noor, nowshah...
efl listening strategies and anxiety among bilingual vs. monolingual junior high school students
از آنجایی که مهارت شنیدار یکی از مهم ترین مهارتها در یادگیری زبان های خارجی در بین زبان آموزان می باشد وهمیشه مورد توجه معلمان زبان انگلیسی و محققین در این رشته بوده است ،تحقیق حاضر به این موضوع مهم پرداخته و میزان استراتژی های شنیداری دانش آموزان و میزان اضطراب شنیداری در هنگام گوش دادن به یک متن را در دو گروه دانش آموز یک زبانه و دو زبانه مورد بررسی قرار داده است. دانش آموزان یک زبانه از دبیر...
the effect of high-energy electron beam on drawn and undrawn high density polyethylene fibers
hdpe monofilaments were obtained using different extruders and drawn by post-extruder equipments. after solidification, drawn and undrawn monofilaments (draw ratio 7:1) were irradiated with 10 mev electron beams in air at room temperature at 25, 50, 75, 100 and 125 kgy dose ranges to induce a network structure. hdpe crosslinking was studied on the basis of gel content measurements. the fibers w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy and Geophysics
سال: 2001
ISSN: 1366-8781,1468-4004
DOI: 10.1046/j.1468-4004.2001.0420011.29.x