]> BibSonomy publications for /author/Saka http://www.bibsonomy.org/burst/author/Saka BibSonomy BuRST Feed for /author/Saka 2008-07-26T03:27:15+02:00 Quartic B-spline collocation method to the numerical solutions of the Burgers' equation Chaos, Solitons & Fractalshttp://www.bibsonomy.org/bibtex/27c8f6b032c5b2a66429ffdb9e914be51/smicha smicha 2008-04-22T12:52:29+02:00 imported
Quartic B-spline collocation method to the numerical solutions of the Burgers' equation
B{\"u}lent Saka and Idris Dag Chaos, Solitons \& Fractals 32 1125--1137 (2007)
to imported by smicha on 2008-04-22 12:52:29 ]]> Chaos, Solitons \& FractalsMay31125--1137Quartic B-spline collocation method to the numerical solutions of the Burgers' equation322007imported 2008-04-22 12:52:29.0 A Web Usage Mining Framework for Mining Evolving User Profiles in Dynamic Web Sites. dblphttp://www.bibsonomy.org/bibtex/25119ca621ace7bd4f395a20f73ad1cd2/dblp dblp 2008-02-22T00:00:00+01:00 dblp
A Web Usage Mining Framework for Mining Evolving User Profiles in Dynamic Web Sites.
Olfa Nasraoui and Maha Soliman and Esin Saka and Antonio Badia and Richard Germain IEEE Trans. Knowl. Data Eng. 20 202-215 (2008)
to dblp by dblp on 2008-02-22 00:00:00 ]]> IEEE Trans. Knowl. Data Eng.2202-215A Web Usage Mining Framework for Mining Evolving User Profiles in Dynamic Web Sites.202008dblp 2008-02-22 00:00:00.0 Web Usage Mining in Noisy and Ambiguous Environments: Exploring the Role of Concept Hierarchies, Compression, and Robust User Profiles. dblphttp://www.bibsonomy.org/bibtex/201b9510ee558517cdada8f4c96b5a043/dblp dblp 2007-09-05T00:00:00+02:00 dblp
Web Usage Mining in Noisy and Ambiguous Environments: Exploring the Role of Concept Hierarchies, Compression, and Robust User Profiles.
Olfa Nasraoui and Esin Saka WebMine 82-101 (2006)
to dblp by dblp on 2007-09-05 00:00:00 ]]> WebMineconf/webmine/200682-101Lecture Notes in Computer ScienceWeb Usage Mining in Noisy and Ambiguous Environments: Exploring the Role of Concept Hierarchies, Compression, and Robust User Profiles.47372006dblp 2007-09-05 00:00:00.0 Mapping Modern Science Using Co-citation Analysis. dblphttp://www.bibsonomy.org/bibtex/28600056ca6d51d12a4d8466fb3644cf2/dblp dblp 2007-07-05T00:00:00+02:00 dblp
Mapping Modern Science Using Co-citation Analysis.
Ayaka Saka and Masatsura Igami IV 453-458 (2007)
to dblp by dblp on 2007-07-05 00:00:00 ]]> IVconf/iv/2007453-458Mapping Modern Science Using Co-citation Analysis.2007dblp 2007-07-05 00:00:00.0 Relaxation of a Single Knotted Ring Polymer http://www.bibsonomy.org/bibtex/20544547c158948befdf74ae9d1439c5a/statphys23 statphys23 2007-06-20T10:16:09+02:00 brownian dynamics effects knot polymer rates relaxation ring simulations statphys23 topic-7 topological
Relaxation of a Single Knotted Ring Polymer
S. Saka and H. Takano Abstract Book of the XXIII IUPAP International Conference on Statistical Physics (2007)
to brownian dynamics effects knot polymer rates relaxation ring simulations statphys23 topic-7 topological by statphys23 on 2007-06-20 10:16:09 ]]> Genova, ItalyAbstract Book of the XXIII IUPAP International Conference on Statistical Physics9-13 JulyRelaxation of a Single Knotted Ring Polymer2007brownian dynamics effects knot polymer rates relaxation ring simulations statphys23 topic-7 topological 2007-06-20 10:16:09.0The relaxation of a single knotted ring polymer %with the trivial or the trefoil knot is studied by Brownian dynamics simulations. The relaxation rate $\lambda_q$ for the wave number $q$ is estimated by the least square fit of the equilibrium time-displaced correlation function $C_q(t) = N^{-1} \sum_i \sum_j C_{i,j}(t) \exp [{2\pi}q(j-i)/N] $ to a double exponential decay at long times. Here, $N$ is the number of segments of a ring polymer and $C_{i,j}(t)$ denotes the equilibrium time-displaced correlation function of the positions of the $i$th and the $j$th segments relative to the center of mass of the polymer. \par Figure 1 shows log-log plots of $\lambda_q$ versus $q/N$ for the single ring polymer with (a) the trivial knot and (b) the trefoil knot. The solid symbols represent the relaxation rates for $q=1$ and the open symbols represent those for $q>1$. The relaxation rate distribution of a single ring polymer with the trivial or the trefoil knot appears to behave as $ \lambda_q \simeq A(1/N)^x $ for $q=1$ and $ \lambda_q \simeq A'(q/N)^{x'} $ for $q>1$. In the case of the trivial knot, $x \simeq x' \simeq 2.15$ and $ A < A'$. These exponents are similar to that found for a linear polymer chain. The topological effect appears as the difference between the amplitudes, which does not appear for a linear polymer chain. In the case of the trefoil knot, $x \simeq 2.52$, $x' \simeq 1.95$ and $A > A'$. It is found that the slowest relaxation rate for each $N$ is given by $\lambda_q$ with $q=2$ for the small values of $N$ and that with $q=1$ for the large values of $N$. This transition is considered to be caused by the change of the structure of the ring polymer from a ``uniform'' state for small $N$, where the knotted part is extended widely along the ring polymer, to a ``phase segregated'' state for large $N$, where the knotted part is localized to a part of the ring polymer and the rest of the ring polymer behaves like a ring polymer with the trivial knot. See figure 2. \par This localization of the knotted part is confirmed by the analysis of the ``average structure.'' The ``average structure'' is obtained self-consistently by averaging many structures obtained from simulations, which are translated and rotated to be matched to the ``average structure.'' Note that the ``average structure'' does not necessarily preserve the topology of the original structures. The ``average structures'' of the ring polymer with the trefoil knot are shown in figure 3 for $N=24$ and $192$. The ``average structure'' changes from the double-loop structure for small $N$ to the single-loop structure for large $N$. This change corresponds to the localization of the knotted part of the ring polymer. On the fractional-order logistic equation. dblphttp://www.bibsonomy.org/bibtex/2c1d0c4a42aa62a0ee1b2803aa06e4bf4/dblp dblp 2007-05-09T00:00:00+02:00 dblp
On the fractional-order logistic equation.
A. M. A. El-Sayed and A. E. M. El-Mesiry and H. A. A. El-Saka Appl. Math. Lett. 20 817-823 (2007)
to dblp by dblp on 2007-05-09 00:00:00 ]]> Appl. Math. Lett.7817-823On the fractional-order logistic equation.202007dblp 2007-05-09 00:00:00.0 A small time solutions for the Korteweg-de Vries equation using spline approximation. dblphttp://www.bibsonomy.org/bibtex/27b22b6e501bc8ce86934e906be4dfe94/dblp dblp 2007-03-19T00:00:00+01:00 dblp
A small time solutions for the Korteweg-de Vries equation using spline approximation.
Dursun Irk and Idris Dag and Bülent Saka Applied Mathematics and Computation 173 834-846 (2006)
to dblp by dblp on 2007-03-19 00:00:00 ]]> Applied Mathematics and Computation2834-846A small time solutions for the Korteweg-de Vries equation using spline approximation.1732006dblp 2007-03-19 00:00:00.0 Galerkin method for the numerical solution of the RLW equation using quadratic B-splines. dblphttp://www.bibsonomy.org/bibtex/2af2cd6d7232dc3d4cd62cc7944f3e8cb/dblp dblp 2007-01-29T00:00:00+01:00 dblp
Galerkin method for the numerical solution of the RLW equation using quadratic B-splines.
Bülent Saka and Gdris Dag and Abdülkadir Dogan Int. J. Comput. Math. 81 727-739 (2004)
to dblp by dblp on 2007-01-29 00:00:00 ]]> Int. J. Comput. Math.6727-739Galerkin method for the numerical solution of the RLW equation using quadratic B-splines.812004dblp 2007-01-29 00:00:00.0 Technology Adoption of Medical Faculty in Teaching: Differentiating Factors in Adopter Categories. dblphttp://www.bibsonomy.org/bibtex/217bd80c28a865ad446a553a2df38b8cb/dblp dblp 2006-06-12T00:00:00+02:00 dblp
Technology Adoption of Medical Faculty in Teaching: Differentiating Factors in Adopter Categories.
Nese Zayim and Soner Yildirim and Osman Saka Educational Technology & Society 9 213-222 (2006)
to dblp by dblp on 2006-06-12 00:00:00 ]]> Educational Technology & Society2213-222Technology Adoption of Medical Faculty in Teaching: Differentiating Factors in Adopter Categories.92006dblp 2006-06-12 00:00:00.0 Development of Image Processing Program for Yeast Cell Morphology. dblphttp://www.bibsonomy.org/bibtex/2b71782502f710ab01bb8f7338977677d/dblp dblp 2006-05-19T00:00:00+02:00 dblp
Development of Image Processing Program for Yeast Cell Morphology.
Miwaka Ohtani and Ayaka Saka and Fumi Sano and Yoshikazu Ohya and Shinichi Morishita J. Bioinformatics and Computational Biology 1 695-710 (2004)
to dblp by dblp on 2006-05-19 00:00:00 ]]> J. Bioinformatics and Computational Biology4695-710Development of Image Processing Program for Yeast Cell Morphology.12004dblp 2006-05-19 00:00:00.0