نتایج جستجو برای: rotational work

تعداد نتایج: 974461  

Journal: :health scope 0
ahmad hajebi mental health research center, tehran institute of psychiatry, school of behavioral sciences and mental health, iran university of medical sciences, tehran, ir iran habib emami tobacco prevention and control research center, national research institute of tuberculosis and lung diseases (nritld), shahid beheshti university of medical sciences, tehran, ir iran; tobacco prevention and control research center, national research institute of tuberculosis and lung diseases (nritld), shahid beheshti university of medical sciences, tehran, ir iran. tel: +98-9127147041; +98-2127122029 mehrdad hosseinzadeh bushehr petroleum industry health organization, bushehr, ir iran abdolmohammad khajeian deputy for health affairs, bushehr university of medical sciences, bushehr, ir iran

conclusions findings of this study showed the importance of psychological hardiness in maintaining mental health. special attention should be paid to maintaining and improving the mental health of workers in the pars special economic energy zone. one of the main principles involved in the sustainable and integrated development of a company is healthy human resources in all aspects, including ph...

Journal: :The Journal of Practice Teaching and Learning 2011

Journal: :journal of modern processes in manufacturing and production 2014
yahya choopani mohammad reza razfar payam saraeian

magnetic abrasive finishing (maf) is a micromachining process that uses magnetic field and magnetic abrasive particles to conduct the mechanism of material removal in micro-nanometer scales. in this paper, by an experimental method and statistical analysis, the effects of parameters like working gap, work-piece rotational speed and material removal mechanism (injection of abrasive slurry of al2...

Journal: :journal of modern processes in manufacturing and production 2015
hamzeh shahrajabian masoud farahnakian seyed alireza mousavi hasan soltani

in magnetic abrasive finishing (maf), abrasive grains as a tool move on surface and can removechip from surface of work piece. in this study al 6061 tube was considered as the work piece andthe effect of finishing parameters such as gap distance between tube and poles, rotational speed oftube, abrasive ration and finishing time on surface roughness was investigated. the mixture offerromagnetic ...

Mohammad Reza Razfar Yahya Choopani,

Magnetic abrasive finishing (MAF) is a micromachining process that uses magnetic field and magnetic abrasive particles to conduct the mechanism of material removal in micro-nanometer scales. In this paper, by an experimental method and statistical analysis, the effects of parameters like working gap, work-piece rotational speed and material removal mechanism (injection of abrasive slurry of Al<...

Journal: :journal of modern processes in manufacturing and production 2014
yahya choopani mohammad reza razfar payam saraeian

in this article, the effect of parameters like working gap, work piece rotational speed and material removal mechanism(injection of the sic abrasive slurry and al2o3, use of diamond paste as abrasive tool) in magnetic abrasive finishing process using designing of experiments on the external surface of cylindrical work pieces of stainless steel aisi 440c to get minimum surface roughness has been...

Mohammad Reza Razfar Yahya Choopani,

Magnetic abrasive finishing (MAF) is a micromachining process that uses magnetic field and magnetic abrasive particles to conduct the mechanism of material removal in micro-nanometer scales. In this paper, by an experimental method and statistical analysis, the effects of parameters like working gap, work-piece rotational speed and material removal mechanism (injection of abrasive slurry of Al<...

Hamzeh Shahrajabian, Hasan Soltani Masoud Farahnakian, Seyed Alireza Mousavi

In magnetic abrasive finishing (MAF), abrasive grains as a tool move on surface and can remove chip from surface of work piece. In this study AL 6061 tube was considered as the work piece and the effect of finishing parameters such as gap distance between tube and poles, rotational speed of tube, abrasive ration and finishing time on surface roughness was investigated. The mixture of ferromagne...

Hamzeh Shahrajabian, Hasan Soltani Masoud Farahnakian, Seyed Alireza Mousavi

In magnetic abrasive finishing (MAF), abrasive grains as a tool move on surface and can remove chip from surface of work piece. In this study AL 6061 tube was considered as the work piece and the effect of finishing parameters such as gap distance between tube and poles, rotational speed of tube, abrasive ration and finishing time on surface roughness was investigated. The mixture of ferromagne...

The cooling of molecules during the adiabatic expansion of supersonic seeded molecular beams is reviewed and illustrated by the example of NO -molecules. The reduction of the Doppler width by collimation of the beam and the cooling to low rotational temperatures brings a significant simplification of the complex NO -absorption spectrum and allows its assignment. The measured rotational tem...

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