نتایج جستجو برای: rotating nanoplate

تعداد نتایج: 35147  

Journal: :journal of applied and computational mechanics 0
saeed talebi department of mechanical engineering, university of isfahan hamed uosofvand department of mechanical engineering, university of kashan, kashan, iran alireza ariaei department of mechanical engineering, faculty of engineering, university of isfahan, isfahan, iran

this study introduces the differential transform method (dtm) to analyse the free vibration response of a rotating, closed section, composite, timoshenko beam which features material coupling between flapwise bending and torsional vibrations due to ply orientation. the governing differential equations of motion are derived using hamilton’s principle and solved by applying dtm. the natural frequ...

ژورنال: طب کار 2013
اصغری, مهدی, عباسی نیا, مرضیه, قائمیان, نوید , محمدیان, فاروق , محمودخانی, سمیه , منظم, محمدرضا,

Background: High levels of fatigue in the workplaces can lead to reduced productivity, and increase the risk of accidents and injuries. Purpose of this study was to assess and compare the fatigue levels among fixed-dayshift and rotating-shift workers of a rolling mills and steel production company in tehran. Methods: The study included 180 workers with fixed- and rotating-shift schedules. The ...

We present a numerical study of the rotating flow generated by two rotating disks in co-/counter-rotating, inside a fixed cylindrical enclosure similar to the Czochralski configuration (Cz).  The enclosure having an aspect ratio A = H/Rc equal to 2, filled with a low Prandtl number fluid (Pr = 0.011), which is submitted to a vertical temperature gradient. The finite volume method has been used ...

The purpose of this research was to suggesting a model of factors affecting on promoting the resilience of rotating staff in Iranian Oil Terminals Company. This research was conducted using qualitative method and thematic analysis based on inductive and need-based method. The statistical population of this research was the rotating staff of Iranian Oil Terminals Company. The statistical populat...

2001
P. W. Kiedron J. L. Berndt L. C. Harrison J. J. Michalsky

A possibility of measuring water vapor column from diffuse irradiance, and thus the extension of optical retrievals to cloudy days, was investigated. The data from the Rotating Shadowband Spectroradiometer (RSS) during its winter deployment at the North Slope of Alaska (NSA) site is used. The initial analysis covers 20 days in March 1999 that include clear, partly cloudy, and overcast days. Dur...

2006
John R. WiLson Jack L. Martin

To determine If patients with rest angina have more severe regional Isehemla than padents with exertlonal aiigln., we compared the severity of left coronary artery (LCA) stenods In 29 patIents with transient anterior chemIc S’ -T changes at rest, and 30 patIents with anterior ST changes only during exertion. The percentage diameter stenosis w measured with Vernier calIpers (2 X lesion diameter ...

2017
Huan-Yan Xu Shu-Yan Qi Elisa I. García-López

BiOXxY1−x (X, Y = Cl, Br, and I) solid solutions have been regarded as promising photocatalysts attributed to their unique layered structure, tunable band structure, and chemical and optical stability. In this study, BiOBrxI1−x nanoplate solid solutions with a high exposure of {001} crystal facets were prepared by a facile alcoholysis method at room temperature and atmospheric pressure. X-ray d...

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