نتایج جستجو برای: flow characteristics

تعداد نتایج: 1112208  

2018
Victor Cebotari Melissa Siegel Valentina Mazzucato

There is scarce empirical evidence on the relation between migration and child health in Moldova and Georgia-two post-Soviet countries with large out-migration flows in the region. This study uses nationally representative data collected in 2011-2012 in Moldova (N = 1601) and Georgia (N = 1193) to investigate how children's health associates with five transnational characteristics: migrant and ...

1993
V. CHRISTENSEN D. PAULY

This contribution examines various flow measures based on analysis of 41 quantified models of trophic interactions in aquatic ecosystems. System productivity/biomass ratio is shown to relate to ecosystem maturity and to the degree of cycling in the systems. Distinct patterns or clusters are observed for different types of resource systems with respect to average path lengths and residence times...

Journal: :journal of hydraulic structures 2013
r. ghaldarbandi m.h. keshavarz keshavarz h. hakimzadeh

in this paper, effects of the cross shore and groyne wall slopes on flow parameters around an impermeable groyne were considered using a three-dimensional numerical cfd model (i.e., fluent). the k-ε turbulence model was used to evaluate the reynolds stresses. the model was first applied to a vertical groyne on a flat bed and the model results were compared with the relevant experimental data. t...

2015
Fiona M Collier Mimi L K Tang David Martino Richard Saffery John Carlin Kim Jachno Sarath Ranganathan David Burgner Katrina J Allen Peter Vuillermin Anne-Louise Ponsonby

As there is limited knowledge regarding the longitudinal development and early ontogeny of naïve and regulatory CD4(+) T-cell subsets during the first postnatal year, we sought to evaluate the changes in proportion of naïve (thymic and central) and regulatory (resting and activated) CD4(+) T-cell populations during the first postnatal year. Blood samples were collected and analyzed at birth, 6 ...

Journal: :international journal of advanced design and manufacturing technology 0
mansour talebi

when flow passes over the tube bundles, energy of flow transfers to the tubes. the fluid induced vibrations (fiv) imposed on the tubes is one of the important problems in analyzing the tube bundles and causes several problems. in this work, first, laminar flow around circular cylinder asymmetrically in a channel is simulated. the reynolds number is 20 and 100. the lift forces to tube are not ze...

Journal: :PROCEEDINGS OF HYDRAULIC ENGINEERING 1998

Operation Theatre (OT) is the most important area where precise controlled on indoor air quality is required because it is directly related to patient health and its recovery period. This work aims to study and visualize the airflow distribution of conventional flat air diffuser ventilation system and newly designed angular air ventilation system in OT. Angular Air Distribution (AAD) system is ...

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