منابع مشابه
A Critical Review of Qualitative Articles in Journals’ Review Process: a Descriptive Exploratory Study
Introduction: Iranian researchers have increasingly been interested in conducting qualitative research studies in health system and publishing related articles. However, no research study was found to critically analyze qualitative articles in the review process of Iranian journals. The aim of this study has been to critically review qualitative articles in the review process of journals. Meth...
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Highly stressed components of modern aircraft engines, like fan and compressor blades, have to satisfy stringent requirements regarding durability and reliability. The induction of compressive residual stresses and strain hardening in the surface layer of these components has proven as a very promising method to significantly increase their fatigue resistance. The required surface layer propert...
متن کاملDetermination of Surface Roughness by Ball Burnishing Process Using Factorial Techniques
Burnishing is a method of finishing and hardening machined parts by plastic deformation of the surface. Experimental work based on central composite second order rotatable design has been carried out on a lathe machine to establish the effects of ball burnishing parameters on the surface roughness of brass material. Analysis of the results by the analysis of variance technique and the F-test sh...
متن کاملExperimental study of Roller burnishing process on plain carrier of planetary type gear box
Burnishing is cold working process where hard roller are being pressed against irregular surface, so that surface finish and the micro hardness increases. In this study internal roller burnishing tool is used to burnish the drilled hole. Speed, feed, and number of passes have been varied using taguchi method to examine the surface finish and microhardness. Anova analysis is carried out. Surface...
متن کاملf/sla from learner perspectives: a social activity or a cognitive process
in the past couple of decades sociocultural theory of sla and its implications in efl contexts have attracted attentions of research circles worldwide and aroused some controversies. firth and wagner (1997) have questioned the principles of the cognitive view which gives importance to mental constructs in favor of sociocultural view which highlights social and contextual constructs. but if soci...
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ژورنال
عنوان ژورنال: International Journal for Research in Applied Science and Engineering Technology
سال: 2018
ISSN: 2321-9653
DOI: 10.22214/ijraset.2018.4134