نتایج جستجو برای: surface discontinuity

تعداد نتایج: 643656  

2004
Tri-Tan Van Cao Ley Chen Fangpo He Karl Sammut

A new tuning method for active vibration absorber design is presented in this paper. A robust, adaptive control scheme based on a variable structure with an adaptive discontinuity surface is designed and simulated. Robust synthesis of an adaptive discontinuity surface based on an augmented state-space is discussed. The proposed tuning scheme has three superior features compared with the existin...

2008
R. P. Kraft M. J. Hardcastle G. R. Sivakoff A. Jordán P. E. J. Nulsen M. Birkinshaw W. R. Forman C. Jones D. M. Worrall J. H. Croston D. A. Evans S. Raychaudhury S. S. Murray N. J. Brassington J. L. Goodger W. E. Harris A. M. Juett C. L. Sarazin K. A. Woodley

We present preliminary results from a deep (600 ks) Chandra observation of the hot interstellar medium of the nearby early-type galaxy Centaurus A. We find a surface brightness discontinuity in the gas ∼3.5 kpc from the nucleus spanning a 120 arc. The temperature of the gas is keV ( keV) interior (exterior) to the 0.60 0.05 0.68 0.10 discontinuity. The elemental abundance is poorly constrained ...

1988
Suchendra M. Bhandarkar Minsoo Suk

2) Roof edges which indicate a discontinuity in surface normal but not in depth. Roof edges could be further classified This paper presents a 3-D multiple object reco~nition as either convex or COncave. technique using Hough clustering. The objects are modeled as polyhedra and the input image is a range image containing instances of the modeled objects. The features used for matching are surfac...

1999
Michael J. Black

Surface discontinuities are detected in a sequence of images by exploiting physical constraints at early stages in the processing of visual motion. To achieve accurate early discontinuity detection we exploit five physical constraints on the presence of discontinuities: i) the shape of the sum of squared differences (SSD) error surface in the presence of surface discontinuities; G) the change i...

Journal: :dental research journal 0
himanshu duhan inder kumar pandit nikhil srivastava neeraj gugnani monika gupta gulsheen kaur kochhar

background: this study was designed to compare the clinical performance of composite, strip crowns, biological restoration, and composite with stainless steel band when used for the coronal build-up of anterior teeth. materials and methods: a total of 20 patients aged 3-6 years presenting with mutilated primary anterior teeth due to caries or trauma were selected for the study using randomized ...

1998
David Hedley

Throughout this thesis, there is an underlying assumption that the quality of a computer graphics image is important. This thesis reports research into computer image synthesis for obtaining this quality. The introduction of discontinuity meshing into existing radiosity techniques has enabled images to be produced at levels of previously unobtainable quality. However, discontinuity meshing is a...

2013
Subhabrata Gangopadhyay Uma Basu

The phenomenon of scattering of water waves by a surface discontinuity over uniform porous sea-bottom of finite depth is investigated in the framework of linearized water wave theory. The surface discontinuity is thought of as originating due to two vast floating inertial surfaces of different materials having different densities. The inertial surfaces are considered to be subject to surface te...

Journal: :SIAM J. Math. Analysis 2010
Virginia De Cicco Chiara Leone Anna Verde

We prove a lower semicontinuity result for free discontinuity energies with a quasiconvex volume term having non standard growth and a surface term.

Journal: :Journal of the Meteorological Society of Japan. Ser. II 1926

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