نتایج جستجو برای: confined and semi

تعداد نتایج: 16852401  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده فنی و مهندسی 1387

abstract biometric access control is an automatic system that intelligently provides the access of special actions to predefined individuals. it may use one or more unique features of humans, like fingerprint, iris, gesture, 2d and 3d face images. 2d face image is one of the important features with useful and reliable information for recognition of individuals and systems based on this ...

Journal: :Fire 2023

Hydrogen fuel cell vehicle (HFCV) technology poses great promise as an alternative to significantly reduce the environmental impact of transport sector’s emissions. However, hydrogen is relatively new, therefore, confirmation reliability and safety analysis still required, particularly for fire scenarios within confined spaces such tunnels. This study applied computational fluid dynamics (CFD) ...

Journal: :Journal of Animal Science 2022

Abstract Conversion of perennial grasslands to crop land in U.S. Northern Plains has resulted a need evaluate alternative management strategies for cow-calf production. A 3-yr study was conducted compare beef cow/calf performance two different August-calving cow systems. Multiparous cows (n = 318) were allocated 8 replicates, and replicate randomly assigned drylot (DL) or pasture (PAST) treatme...

Journal: :Japanese Geotechnical Society Special Publication 2015

Journal: :Physical review letters 2010
William Mather Octavio Mondragón-Palomino Tal Danino Jeff Hasty Lev S Tsimring

Flows of cells growing as a quasimonolayer in a confined space can exhibit streaming, with narrow streams of fast-moving cells flowing around clusters of slowly moving cells. We observed and analyzed this phenomenon experimentally for E. coli bacteria proliferating in a microfluidic cell trap using time-lapse microscopy. We also performed continuum modeling and discrete-element simulations to e...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2006
Nicolas Taberlet Patrick Richard

The diffusion of a pulse of small grains in an horizontal rotating drum is studied through discrete elements methods simulations. We present a theoretical analysis of the diffusion process in a one-dimensional confined space in order to elucidate the effect of the confining end-plate of the drum. We then show that the diffusion is neither subdiffusive nor superdiffusive but normal. This is demo...

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