Showing papers in "Optik in 2018"

TL;DR: In this article, a new solitons solution of the complex Ginzburg-Landau equation with Kerr law nonlinearity was found using the new extended direct algebraic method.

TL;DR: A feasible solution for plant diseased leaf image segmentation and plant disease recognition based on Fusion of Super-pixel clustering, K-mean clustering and pyramid of histograms of orientation gradients algorithms is provided.

TL;DR: In this paper, copper nanoparticles (CuNPs) were prepared using Syzygium aromaticum (clove) bud extract through simple and eco-friendly green route.

TL;DR: In this article, the Lakshmanan-Porsezian-Daniel model was used to extract solitons from the Lakshmannan-porsezians model with the aid of modified simple equation method.

TL;DR: In this paper, the authors reveal the dark, bright, mixed dark-bright, singular and mixed singular optical solitons to the space-time fractional (1+1)-dimensional coupled nonlinear Schrodinger equation by using the extended sinh-Gordon equation expansion method.

TL;DR: In this paper, the authors obtained optical soliton solutions to the Kundu-Eckhaus equation with general coefficients using the Riccati-Bernoulli's sub-ODE method and Kudryashov's scheme.

TL;DR: In this article, the authors obtained optical soliton solutions to the perturbed Radhakrishnan-Kundu-Lakshmanan equation by trial equation method and modified simple equation algorithm.

TL;DR: In this paper, the authors studied fractional temporal evolution of optical solitons with quadratic-cubic nonlinearity that comes with a few perturbation terms.

TL;DR: In this paper, the authors examined soliton dynamics of sub pico-second pulses modeled by the Kaup-Newell equation and retrieved dark, bright and singular solitons to the model.

TL;DR: In this article, the modified simple equation method and the trial equation method were applied in this context, and additional solutions, besides, optical solitons, were recovered, and the two integration schemes that were applied were modified simple equations and trial equation methods.

TL;DR: In this paper, a differential group delay in optical fibers with coupled Fokas-Lenells equation was studied and two integration schemes were adopted: trial equation method and modified simple equation scheme.

TL;DR: In this paper, a variety of new optical wave solutions of the Fokas-Lenells equation in presence of perturbation terms are investigated, and a new approach is used, namely the generalized exponential function method.

TL;DR: In this article, a new extended direct algebraic method for solving the nonlinear conformable fractional Schrodinger-Hirota equation (FSHE) is presented.

TL;DR: In this article, a new model for soliton transmission through optical fibers where self-phase modulation is negligibly small and hence removed is proposed, which includes spatio-temporal dispersions, of second and third order, to compensate for low group velocity dispersion.

TL;DR: In this paper, the authors obtained chirp-free bright optical soliton solutions to Radhakrishnan-Kundu-Lakshmanan equation by traveling wave hypothesis along with the technical criteria for the existence of such solitons.

TL;DR: The extensive simulated experimental results such as Key Sensitivity, Correlation, entropy, Number of Pixel Chang Rate (NPCR), Unified Average Cipher Intensity (UACI) scores prove that proposed algorithm has excellent encryption results obtained in just one round.

TL;DR: In this article, a semi-inverse variational principle was applied to retrieve cubic-quartic optical soliton solutions in Kerr and power law media, and the results appeared with a number of constraint relations.

TL;DR: In this paper, the soliton dynamics in optical fibers with Fokas-Lenells equation is illustrated and the existence criteria of these solitons are also presented, along with few forms of combo-soliton solutions that naturally emerged from the three integration schemes applied to the model.

TL;DR: In this paper, Lie symmetry analysis of the cubic-quartic nonlinear Schrodinger's equation was carried out for soliton dynamics whenever group velocity dispersion is negligibly small.

TL;DR: In this paper, the authors reveal the dark, bright, combined dark-bright, singular optical solitons and other solutions to the conformable space-time fractional Fokas-Lenells equation.

TL;DR: The simulated results show that the proposed technique is extremely robust against statistical and differential attacks and passed quantitative as well as qualitative Number of Pixel Change Rate (NPCR) and Unified Average Cipher Intensity (UACI) tests in a single round of encryption.

TL;DR: In this paper, the modified simple equation method applied to perturbed complex Ginzburg-Landau equation gives dark and singular solutions to the model and the perturbation terms appear with full nonlinearity.

TL;DR: In this paper, a modified simple equation approach is used to secure the dark and singular optical soliton solution to the perturbed Kundu-Eckhaus equation where the perturbation terms appear with full nonlinearity.

TL;DR: Chirp-free bright optical soliton solutions are obtained for Chen-Lee-Liu equation by traveling wave hypothesis as well as the application of semi-inverse variational principle as mentioned in this paper.

TL;DR: A method to improve CNN performance by hyperparameter tuning in the feature extraction step of CNN is proposed using a parameter-setting-free harmony search (PSF-HS) algorithm, which is a metaheuristic optimization method.

TL;DR: In this paper, the analytical solutions of the space-time generalized nonlinear Schrodinger equation involving the beta-derivative were constructed by using the sub-equation method.

TL;DR: An improved lung nodule segmentation algorithm based on U-NET network is presented, which mainly includes the dataset rebuilding, convolutional layer, pooling layer and upsampled layer, and residual network is introduced.

TL;DR: The computational results prove the superiority of the proposed EO-Jaya algorithm compared to newly published estimation methods.

TL;DR: In this paper, the authors constructed new complex analytical solutions of the 2D Ginzburg-Landau equation with variable coefficients by using the unified method and employed this method to obtain complex solitary wave solutions, complex soliton wave solutions and complex elliptic wave solutions.