نتایج جستجو برای: velocity change

تعداد نتایج: 723900  

2002
K. VAFAI

In this paper, a numerical study of heat and mass transfer with phase change in porous materials is performed. The problem is modelled by a system of transient inter-coupled equations governing the twodimensional multiphase transport process in porous media. The solution algorithm allows full simulation without any significant simplifications. The variations and the interrelationship between th...

Journal: :IEEE Trans. Contr. Sys. Techn. 1997
Perry Y. Li Luis Mejías Alvarez Roberto Horowitz

The AHS architecture of the California PATH program organizes traffic into platoons of closely spaced vehicles. A large relative motion between platoons can increase the risk of high relative velocity collisions. This is particularly true whenever platoons are formed or broken up by the join and split control maneuvers and by the decelerate to change lane control maneuver, which allows a platoo...

Journal: :British journal of anaesthesia 1970
G E Whittaker J A Thornton

Nerve conduction velocity was studied in the ulnar nerve of human subjects during general anaesthesia. An increase in velocity of between 1.9 and 4.8 per cent occurred following the administration of paralytic doses of tubocurarine to subjects receiving nitrous oxide, oxygen and halothane anaesthesia in whom ventilation was controlled. This increase in velocity did not appear to be related to a...

The study of mechanical behavior of the structural steel S400 under quasi- static and dynamic loading has been the subject of this investigation. In oder to obtain different stress - triaxiality conditions the specimens were notched with 1, 1.5, 2 and 3.5 mm notch radius. The results of fractography show as the velocity of tension increases, ductility reduces and a ductile-brittle transition oc...

In this study, the behavior of a subject consisting of a cylinder with 4 plates perpendicular to it with a rotational degree of freedom under airflow both through the numerical approach, known as improved discrete vortex and experimental approach were investigated. The experimental and numerical results have shown that oscillating regime occurs in low velocity and length. This movement is vibra...

In the present study, analytical solutions are obtained for two-dimensional advection dispersion equation for conservative solute transport in a semi-infinite heterogeneous porous medium with pulse type input point source of uniform nature. The change in dispersion parameter due to heterogeneity is considered as linear multiple of spatially dependent function and seepage velocity whereas seepag...

Journal: :Remote Sensing 2012
Juthasinee Thanyapraneedkul Kanako Muramatsu Motomasa Daigo Shinobu Furumi Noriko Soyama Kenlo Nishida Nasahara Hiroyuki Muraoka Hibiki M. Noda Shin Nagai Takahisa Maeda Masayoshi Mano Yasuko Mizoguchi

To estimate global gross primary production (GPP), which is an important parameter for studies of vegetation productivity and the carbon cycle, satellite data are useful. In 2014, the Japan Aerospace Exploration Agency (JAXA) plans to launch the Global Change Observation Mission-Climate (GCOM-C) satellite carrying the second-generation global imager (SGLI). The data obtained will be used to est...

2005
Siegfried Hess

The determination of the flow properties of a fluid containing a cylindrical inclusion with its long axis oriented parallel to the vorticity direction is a 2-dimensional problem which is treated as a special case in a calculation of the corresponding D-dimensional problem. The velocity and pressure are obtained from the solution of the equations of hydrodynamics where D-dimensional multipole po...

1999
M. SLODIČKA

where ρ [ kg m3 ] is the mass density of the phase α; ε [1] is the volume fraction occupied by the phase α; q [ m s ] is Darcy’s velocity of the phase α; ω i [1] is the mass fraction of component i in the α phase; Ji [ kg m2s ] is the flux vector representing the diffusive flux of component i in the phase α; f i [ 1 s ] is the source of component i in the phase α; ei [ 1 s ] is the gain of mass...

2012
Tae-Woong Jung Mu-Wook Pyeon Jee-Hee Koo

With the emergence of the response to climate change as a global agenda, UNFCCC member countries must report their Greenhouse Gas (GHG) emissions and absorptions. With conventional carbon emission estimation methods such as the IPCC Guideline, however, it is impossible to measure reduction of carbon emissions by U-City services. Therefore, this study proposed estimating carbon emission reductio...

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