نتایج جستجو برای: steelcomposite joined tubes

تعداد نتایج: 38081  

Journal: :international journal of reproductive biomedicine 0
leili hafizi mostafa gholizadeh mohammad karimi golkoo hosseini hesam mostafavi-toroghi mehdi haddadi

background: magnetized water has made many improvements in industry, agriculture and medicine. however its utilization in medicine still remains controversial. objective:  in this study we aimed to investigate the effects of magnetized water on height of epithelial cells in pre-implantation stage endometrium and fallopian tube and number of corpus lutea in female mice. materials and methods:  e...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
masoud zadkhast msc student, department of mechanical engineering, najafabad branch, islamic azad university, isfahan, iran davood toghraee assistant professor, department of mechanical engineering, khomeinishahr branch, islamic azad university, isfahan, iran arash karimipour assistant professor, department of mechanical engineering, najafabad branch, islamic azad university, isfahan, iran

this work presents a model for calculating the effective ‎thermal conductivity of nanofluids. the proposed model ‎includes the effects of nanoparticles and thermal conductivity ‎base fluid.we will focus on experimental of the volume ‎concentration parameter and temperature on thermal ‎conductivity, nano-fluid combination and multi-walled ‎carbon nanotubes-oxide / copper-paid deionized water. th...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
gholamreza mazruei graduate student, faculty of mechanical engineering, islamic azad university of khomeini shahr ali heidari assistant professor, young researchers and elite club, khomeinishahr branch, islamic azad university, khomeinishahr, iran

in this study, a new method for joining aluminum tubes in subsurface structures using steel converting and aluminum welding are presented and reviewed. but near the weld area is under high thermal cycle and will cause residual stresses in heat affected zone. therefore for assessment of proposed connection from the perspective of residual stress by using the finite element method welding of tube...

Journal: :British journal of anaesthesia 1978
D J Hatch

The dimensions of tracheal tubes and connectors in common use were measured together with the resistance to breathing at flow rates occurring in babies breathing quietly. The outside diameters of rubber tubes varied more than those of plastic tubes. The main factors influencing resistance were the internal diameter and a sudden change in diameter or direction of flow. These are of particular im...

Journal: :Proceedings of the American Mathematical Society 1995

Journal: :Proceedings of the National Academy of Sciences 1984

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