نتایج جستجو برای: large rotation

تعداد نتایج: 1093429  

1997
W. van Breugel

We have carried out multifrequency radio polarisation imaging of a sample of 15 radio galaxies at z > 2 from the MRC/1Jy sample using the VLA. We report here the discovery of large rotationmeasures (RM) in a considerable fraction of the high redshift radio galaxies. Using the difference between the RM values of the two radio lobes in each source and statistical arguments, we show that the Farad...

2012
Gabriel Takacs Vijay Chandrasekhar Sam Tsai David Chen Radek Grzeszczuk Bernd Girod

We present an end-to-end feature description pipeline which uses a novel interest point detector and RotationInvariant Fast Feature (RIFF) descriptors. The proposed RIFF algorithm is 15× faster than SURF while producing large-scale retrieval results that are comparable to SIFT. Such high-speed features benefit a range of applications from Mobile Augmented Reality (MAR) to web-scale image retrie...

Journal: :The Biochemical journal 1961
K L MANCHESTER

The specific rotation, [o]", of soluble feather keratin was -430° at 250. The estimated probable error is + 45°. This was for a solution of protein concentration 3 mg./ml. The result of these experiments therefore clearly shows that the solution of soluble feather keratin has a large negative specific rotation that is of the same order of magnitude as that of collagen. The specific rotation of ...

2001
P. Hickson

If uncorrected, the Coriolis force due to the rotation of the Earth causes significant aberration of images produced by large liquid-mirror telescopes. We show that this problem can be eliminated by a fixed compensating tilt of the liquidmirror rotation axis. The required tilt angle, which is a function of latitude and mirror rotation rate, is of order 10 arcsec for current telescopes. This res...

2007
G. H. M. VAN DER HEIJDEN

We give a careful discussion of end rotation in elastic rods, focusing on ambiguities that arise if arbitrarily large deformations are allowed. By introducing a closure and restricting to a class of deformations we show that a rigorous treatment of end rotation can be obtained. The results underpin various non-rigorous discussions in the literature and serve to promote the variational analysis ...

2012
Milo Taylor

Suppression of turbulence has been observed in the Large Plasma Device in the presence of flow shear. Using an iris-like setup of biasable metal plates called limiters, azimuthal flow near the edge of the device was achieved. The limiters extend from the inner surface of the device inward, 28.5cm from the central axis, and are set from 0 V to 200 V above the anode. Multiple probing methods incl...

Journal: :CoRR 2014
Nail A. Gumerov Ramani Duraiswami

Computation of the spherical harmonic rotation coefficients or elements of Wigner’s dmatrix is important in a number of quantum mechanics and mathematical physics applications. Particularly, this is important for the Fast Multipole Methods in three dimensions for the Helmholtz, Laplace and related equations, if rotation-based decomposition of translation operators are used. In these and related...

2000
David R. Alves

The rotation of the disk of the LMC is derived from the radial velocities of 975 carbon stars. The radial component of the disk’s velocity ellipsoid is σR = 28 ± 14 km s . The disk rotates with a true maximum circular velocity of 79 km s after correcting for asymmetric drift. For a typical submaximal disk, the LMC’s dark halo has a mass of 1× 10M⊙ inside of 10 kpc. If the LMC microlensing lens ...

2015
Qu Tianwei Ma Weihua Wu Dong Luo Shihui

Aimed at the safety problem of the locomotive under the dynamic braking condition, analysis the influence of the coupler and buffer system. The coupler reposition methods of the large rotation angle coupler and the small rotation angle coupler under longitudinal coupler press force was compared. The influence of coupler and buffer system to the dynamics performance of locomotive was researched ...

, E. Mir Mohammad Sadeghi M. badakhshian M. Karimian, M. Mokhles Pour Esfahani,

In industrial production systems, including the most important factors in the economic field machining operations, reduce tool wear due to abrasive nature of the phenomenon on many factors, including temperature Lathe tool, influences, machining conditions (cutting speed, speed losses, forcing to rebuild parts of the manufacturing tolerances disassemble tool wear is caused by the phenomenon, as...

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