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Wyszukujesz frazę "Bhowmick, S." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
An investigation of stresses and deformation states of clamped rotating functionally graded disks
Autorzy:
Thawait, A. K.
Sondhi, L.
Sanyal, S.
Bhowmick, S.
Powiązania:
https://bibliotekanauki.pl/articles/281806.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
functionally graded material (FGM)
linear elastic analysis
annular rotating disk
variable thickness rotating disk
finite element method (FEM)
Opis:
The present study deals with the linear elastic analysis of variable thickness rotating disks made of functionally graded materials (FGMs) by the finite element method. The disks have radially varying material properties according to an exponential law, which is achieved by the element based grading of the material properties on the meshed domain. The results are reported for three types of thickness profiles, namely, uniform, linearly varying and concave thickness, having their mass constant. The disks are subjected to the clamped boundary condition at the inner surface and the free boundary condition at the outer surface. The obtained results show that in a variable thickness rotating disk, deformation and stresses are less as compared to the uniform thickness disk.
Źródło:
Journal of Theoretical and Applied Mechanics; 2017, 55, 1; 189-198
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the Farey sequence and its augmentation for applications to image analysis
Autorzy:
Pratihar, S.
Bhowmick, P.
Powiązania:
https://bibliotekanauki.pl/articles/329997.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
Farey sequence
Farey table
fraction rank
theory of fractions
image analysis
sekwencja Fareya
rząd frakcji
analiza obrazu
Opis:
We introduce a novel concept of the augmented Farey table (AFT). Its purpose is to store the ranks of fractions of a Farey sequence in an efficient manner so as to return the rank of any query fraction in constant time. As a result, computations on the digital plane can be crafted down to simple integer operations; for example, the tasks like determining the extent of collinearity of integer points or of parallelism of straight lines—often required to solve many image-analytic problems—can be made fast and efficient through an appropriate AFT-based tool. We derive certain interesting characterizations of an AFT for its efficient generation. We also show how, for a fraction not present in a Farey sequence, the rank of the nearest fraction in that sequence can efficiently be obtained by the regula falsi method from the AFT concerned. To assert its merit, we show its use in two applications—one in polygonal approximation of digital curves and the other in skew correction of engineering drawings in document images. Experimental results indicate the potential of the AFT in such image-analytic applications.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2017, 27, 3; 637-658
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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