نتایج جستجو برای: the roundness
تعداد نتایج: 16052834 فیلتر نتایج به سال:
apart from regular wheel wear such as decreasing wheel diameters and reduced flange thicknesses and heights, wheel flats (wf) and oval wheels (or oor, out-of-roundness) are the most common wheelset problems for railway vehicles. within the fp7 research project “saferail”, apt has developed an innovative wheelset monitoring system so-called “wheel flat and out of roundness monitoring (worm) syst...
The maximal roundness of a metric space is quantity that arose in the study embeddings and renormings. In setting Banach spaces, it was shown by Enflo takes on much simpler form. this paper we provide simple computations many standard such as $\ell^{p}$, Lebesgue-Bochner spaces $\ell^{p}(\ell^{q})$ Schatten ideals $S_{p}$. We also introduce property dual to roundness, which call coroundness, ma...
Accuracy and topography are significant indicators of precision machined high-quality surfaces. Case hardened steel (16MnCr5) was analyzed to obtain information about the effects technological data connections between accuracy (roundness) roughness parameters (Sa, Sz, Ssk, Sku). It found that feed rate has a influence on roundness parameters, there strong relationships these parameter values: c...
Sand and gravel mining from the most of our country rivers causes morphological, hydrological and geomorphological changes in these rivers. This study investigates the effects of removal of sand and gravel from the river bed on sedimentological features of Zaremrood River in Mazandaran province. For this purpose, by determining four sections before and four sections after the sand removing poin...
To investigate age-related changes in the shape of trachea, normal male volunteers (n = 83, mean +/- SD: 47.7 +/- 20.2 years old) underwent inspiratory CT scans at full inspiration and lung function tests. Subjects who showed VC < 80% predicted or FEV1 < 80% predicted on lung function tests were excluded. The CT data, which is located at 2.0 cm above the aortic arch, were transferred to a perso...
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