نتایج جستجو برای: ra pr model temperature effect

تعداد نتایج: 3859199  

2013
Erwin Hochmair Thomas Lenarz

The Future of Hearing 1 Pr og ra m m & A bs tr ac ts Cluster of Excellence Hearing4all International Symposium 2013 7th November – 8th November 2013 Rotunde Medical Park Hannover The Future of Hearing t r f ri

2009
Humaira Irshad

P Pr re ep pa ar re ed d b by y H Hu um ma ai ir ra a I Ir rs sh ha ad d Rural Development Division

Journal: :Physical review letters 2002
Ke-Qing Xia Siu Lam Sheng-Qi Zhou

We report Nusselt number measurements from high Prandtl number turbulent thermal convection experiments. The experiments are conducted in four fluids with the Prandtl number Pr varying from 4 to 1350 and the Rayleigh number Ra from 2x10(7) to 3x10(10), all in a single convection cell of unity aspect ratio. We find that the measured Nusselt number decreased about 20% over the range of Pr spanned...

Journal: :Journal of Engineering Materials and Technology-transactions of The Asme 2021

Abstract The kinetics of reversed austenite formation in 301 stainless steel and its effect on the deformation an automobile front bumper beam are studied by using modeling approaches at different length scales. diffusion-controlled is Johnson–Mehl–Avrami–Kolmogorov (JMAK) model, based experimental data. model can be used to predict volume fraction a temperature range 650–750 °C. A three-dimens...

2007
David Kadko Karl Gronvold David Butterfield

Radium isotopes were used to determine the crustal residence times of hydrothermal fluids from two geothermal wells (Svartsengi and Reykjanes) from the Reykjanes Peninsula, Iceland. The availability of rock samples from the subsurface (to depths of 2400 m) allowed direct comparison of the radium isotopic characteristics of the fluids with those of the rocks within the high temperature and press...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2009
J L Wang S J Campbell A J Studer M Avdeev R Zeng S X Dou

The effects of replacing Pr by Lu on the magnetic behaviour and structures of Pr(1-x)Lu(x)Mn(2)Ge(2) (x = 0.2,x = 0.4) have been investigated using x-ray diffraction, Mössbauer spectroscopy, magnetization and neutron diffraction measurements. The substitution of Lu for Pr leads to a decrease in the lattice constants a, c and the unit cell volume V at room temperature with this contraction of th...

2007
David E. Moorman Carl R. Olson

Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience, 2004, On-line. Brotchie PR, Andersen RA, Snyder LH, Goodman SJ. Head position signals used by parietal neurons to encode locations of visual stimuli. Nature

Journal: :Physics of Fluids 2022

We present a numerical study of vorticity production and transport in the two-dimensional Rayleigh–Bénard (RB) convection. Direct simulations are carried out Rayleigh number (Ra) range 105≤Ra≤106, Prandtl (Pr) 0.71, aspect ratio (Γ) convection cell 0.75≤Γ≤6. found that flow structure temperature distribution vary with Γ greatly due to multiple vortices interaction. Further investigation on reve...

Journal: :Veterinary world 2015
Soumya Dash A K Chakravarty Avtar Singh Pushp Raj Shivahre Arpan Upadhyay Vaishali Sah K Mahesh Singh

AIM The aim of the present study was to assess the influence of temperature and humidity prevalent under subtropical climate on the breeding values for fertility traits viz. service period (SP), pregnancy rate (PR) and conception rate (CR) of Murrah buffaloes in National Dairy Research Institute (NDRI) herd. MATERIALS AND METHODS Fertility data on 1379 records of 581 Murrah buffaloes spread o...

Journal: :Physical review letters 2014
Xiaozhou He Dennis P M van Gils Eberhard Bodenschatz Guenter Ahlers

We report measurements of the temperature variance σ(2)(z,r) and frequency power spectrum P(f,z,r) (z is the distance from the sample bottom and r the radial coordinate) in turbulent Rayleigh-Bénard convection (RBC) for Rayleigh numbers Ra = 1.6 × 10(13) and 1.1 × 10(15) and for a Prandtl number Pr ≃ 0.8 for a sample with a height L = 224 cm and aspect ratio D/L=0.50 (D is the diameter). For z/...

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