TIC/Al cermet (ceramics+metal) structuring and composition forming with spontaneous infiltration of aluminum melt into a porous hot titanium carbide frame obtained by the SHS (Self-propagating high temperature synthesis) method

on the practicality and effectiveness of a personalized eclectic method incorporated into iranian high school efl syllabus

همگام با سرعت در حال رشد خلاقیت و نوآوری های آموزش زبان به ویژه ظهور روش ارتباطی آموزش زبان? بسیاری از مدارس زبان با بازاندیشی آموزش و پرورش خود? برای گنجاندن فعالیت های ارتباطی، وزمینه ی شخصی سازی شده به شیوه های سنتی خود به روز رسانی شده اند. با این حال، مدارس ایرانی در این زمینه آهسته پیش رفته اند. از این رو، هدف عمده ی پژوهش حاضر برداشتن یک گام در پر کردن شکاف بین نظریه های آموزشی نو ظهور و...

A Marco-homogenous and Micro-Heterogeneous Model for Self-propagating High Temperature Synthesis (SHS)

Recently research shows that heterogeneous model is needed to explain some complex combustion behaviors in SHS. However, more heterogeneous details be considered more difficulties will be faced. A micro-heterogeneous & macro-homogeneous model is proposed in this paper based on some previous works for this problem. Combustion compact is divided into lots of little units, which are composed of a ...

Synthesis of Al2O3-ZrO2 Nanocomposite by Mechanical Activated Self-propagating High Temperature Synthesis(MASHS) and Ignited via Laser

By consideration of unique properties of composite Al2O3-ZrO2 such as high toughness, high wear resistant and relative low thermal expansion, in this study, nanocomposite of Al2O3-ZrO2 was produced by Mechanical activated Self propagating High-temperature Synthesis (MASHS) using laser beam for ignition. First Al and ZrO2 powders were mixed in the mole ratio of 1:1 and milled for 1, 3 and 6 hour...

the 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...

The self-propagating high-temperature synthesis of sinterable powders