نتایج جستجو برای: swirl

تعداد نتایج: 1826  

Journal: :Journal of the Korean Society of Propulsion Engineers 2016

2012
T. Gangopadhyay

Popcorn fractals are instances of Integrated Fractal Systems involving trigonometric functions. In this paper, we study the effect of spherical, swirl and pseudo-horseshoe functions on popcorn fractals to produce talismanic and tantric designs. General Terms Fractal, Algorithm, Turbo C++, Program.

Journal: :Journal of animal science 2006
C G Kealey M D MacNeil M W Tess T W Geary R A Bellows

The objectives of this study were to estimate heritability for scrotal circumference (SC) and semen traits and their genetic correlations (rg) with birth weight (BRW). Semen traits were recorded for Line 1 Hereford bulls (n = 841), born in 1963 or from 1967 to 2000, that were selected for use at Fort Keogh (Miles City, MT) or for sale. Semen was collected by electroejaculation when bulls were a...

2010
M. LUŠTRIK

The problem emerging from particle coating is how to manufacture particles with just enough material deposited to achive the desired result [1]. Especially in case of functional coatings, the uniformity of coating thickness over the entire particle surface plays an important role. In our study the performance of two bottom spray coaters and the effect of the particle motion on the coating unifo...

2007
P. N. Shah D. Mobed Z. S. Spakovszky

Aircraft on approach in high-drag and high-lift configuration create unsteady flow structures which inherently generate noise. For devices such as flaps, spoilers and the undercarriage there is a strong correlation between overall noise and drag such that, in the quest for quieter aircraft, one challenge is to generate drag at low noise levels. This paper presents a rigorous aero-acoustic asses...

Journal: :تحقیقات موتور 0
امید صمیمی ابیانه o. samimi abianeh سید مصطفی میرسلیم s.m. mirsalim احمد شفیعی ثابت a. shafiei sabet

gas motion within the cylinder is one of the major factors that control the combustion process in spark ignition engine. it also has significant impact on heat transfer. both the bulk gas motion and the turbulence characteristics of the flow are important and governing the overall behavior of the flow. an arrangement for obtaining a stratified charge, using port injection, is proposed for a cur...

Journal: :PLoS ONE 2009
Katherine L. Hammond Helen E. Loynes Catriona Mowbray Greg Runke Matthias Hammerschmidt Mary C. Mullins Victoria Hildreth Bill Chaudhry Tanya T. Whitfield

BACKGROUND The Bone Morphogenetic Protein (BMP) genes bmp2 and bmp4 are expressed in highly conserved patterns in the developing vertebrate inner ear. It has, however, proved difficult to elucidate the function of BMPs during ear development as mutations in these genes cause early embryonic lethality. Previous studies using conditional approaches in mouse and chicken have shown that Bmp4 has a ...

2008

lin apparatus ,·,hieh could produce known amounts of angular momenlum in a pipeline was verified by direct measurement of axial and tangential velocity profiles. By using the assumption that a vortimetcr, with vanes spanning only the rotational core, responded to an equivalent solid rotational core, an expression was develop­ ed relating the angular velocity to the angular momentum. Comparison ...

Abdulrahman Bahrami, Farshid Ghorbani-Shahna, Mohsen Goodarzi, Zahra Tarin,

Introduction: Generally, geometrical parameters of the cyclone have a profound effect on determining its performance. The air outlet (Vortex Finder) as one of the cyclone’s components has a significant impact on the cyclone’s internal flow pattern, pressure drop and even dust removal efficiency. Material and Methods: Two different air outlets were designed in order to be easily installed and r...

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