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8183 articles
Research Article
Canonically Transformed Detectors Applied to the Classical Inverse Scattering Problem
C. Jung, T.H. Seligman, J.M. Torres
Pages: 404 - 411
The concept of measurement in classical scattering is interpreted as an overlap of a particle packet with some area in phase space that describes the detector. Considering that usually we record the passage of particles at some point in space, a common detector is described e.g. for one-dimensional systems...
Research Article
Blind Channel and Data Estimation Using Fuzzy Logic Empowered Cognitive and Social Information-Based Particle Swarm Optimization (PSO)
Muhammad Asadullah, Muhammad Adnan Khan, Sagheer Abbas, Tahir Alyas, Muhammad Asif Saleem, Areej Fatima
Pages: 400 - 408
Multiple Input Multiple Output (MIMO) is a technology used to improve the channel capacity of the wireless communication systems. Rapid increase in the number of users has led to data rate demand increased in growing modern wireless communication systems. To overcome this issue, MIMO is being used with...
Research Article
Assessment of Non-Response under Ratio Method of Imputation in Two- Occasion Successive Sampling
G.N. Singh, D. Majhi, S. Prasad, F. Homa
Pages: 403 - 418
This paper considers the problem of estimation of the population mean of the study character under ratio method of imputation when some observations in the sample data are missing at random and the information on an auxiliary variable is readily available on both the occasions in two-occasion successive...
Research Article
Cooperative Data Management in Wireless Sensor Networks
Hajar Mousannif, Ismail Khalil
Pages: 403 - 412
Introducing cooperation into a wireless sensor network (WSN) has gained much attention in the recent few years mainly because of the significant effect it has on optimizing energy consumption and on enhancing the lifetime and the overall performance of the network. Cooperation can be exploited at different...
Research Article
The description of reflection coefficients of the scattering problems for finding solutions of the Korteweg–de Vries equations
Pham Loi Vu
Pages: 399 - 432
The results of inverse scattering problem associated with the initial-boundary value problem (IBVP) for the Korteweg–de Vries (KdV) equation with dominant surface tension are formulated. The necessary and sufficient conditions for given functions to be the left- and right-reflection coefficients of the...
Research Article
Explicit solutions for a nonlinear model on the honeycomb and triangular lattices
V.E. Vekslerchik
Pages: 399 - 422
We study a simple nonlinear model defined on the honeycomb and triangular lattices. We propose a bilin-earization scheme for the field equations and demonstrate that the resulting system is closely related to the well-studied integrable models, such as the Hirota bilinear difference equation and the Ablowitz-Ladik...
Research Article
Three-Generation Distler-Kachru Models
Yu.I. Samoilenko, Yu.M. Malyuta, N.N. Aksenov
Pages: 402 - 408
Research Article
Quantitative Optimization of Workpiece-fixture System's Clamping Forces
Lu Jiping, Zhang Faping, Zuo Jianhua, Qian Hanbo, Ma Ning
Pages: 402 - 409
The paper discusses the stability of workpiece-fixture system and quantitative optimization of clamping forces during precise machining. Based on the force screw theory and the minimum norm principle, a mathematical model is formulated to calculate the entire passive forces acting on the workpiece. Furthermore,...
Research Article
The new family of distributions and applications in heteroscedastic regression analysis
Gauss M. Cordeiro, Thiago G. Ramires, Edwin M.M. Ortega, Morad Alizadeh
Pages: 401 - 418
First we introduce and study some general mathematical properties of a new generator of continuous distributions with two extra shape parameters called the odd generalized half-Cauchy family. A second goal, we introduce the new log-generalized odd half-Cauchy heteroscedastic regression model with censored...
Research Article
Application of Artificial Capital Market in Task Allocation in Multi-robot Foraging
Adel Akbarimajd, Ghader Simzan
Pages: 401 - 417
Because of high speed, efficiency, robustness and flexibility of multi-agent systems, in recent years there has been an increasing interest in the art of these systems. Artificial market mechanisms are one of the well-known negotiation multi-agent protocols in multi-agent systems. In this paper artificial...
Research Article
On Radial Schrödinger Equations in Curved Spaces and Their Spectra Through Nonlinear Constraints
J. Beckers, N. Debergh
Pages: 401 - 408
First, we determine the radial Schrödinger equation in D-dimensional curved spaces when central problems are considered. Second, we develop the so-called factorization method on the basis of supersymmetric arguments for solving such radial equations when D = 1, 2, 3-harmonic oscillator and D = 3-hydrogen...
Research Article
Eigenvectors of the recursion operator and a symmetry structure for the coupled KdV hierarchy
Sen-Yue Lou
Pages: 401 - 413
It is shown that eigenvectors of the recursion operator L with the eigenvalue i and the inverse of the recursion operator Li L-i for the coupled KdV hierarchy (CKdVH) can be obtained in terms of squared eigenfunctions of the associated linear problem. The symmetry structure and corresponding infinite...
Research Article
Seasonality and trend analysis of tuberculosis in Lahore, Pakistan from 2006 to 2013
Aasia Khaliq, Syeda Aadila Batool, M. Nawaz Chaudhry
Pages: 397 - 403
Tuberculosis (TB) is a respiratory infectious disease which shows seasonality. Seasonal variation in TB notifications has been reported in different regions, suggesting that various geographic and demographic factors are involved in seasonality. The study was designed to find out the temporal and seasonal...
Research Article
A Note on Topp-Leone Odd Log-Logistic Inverse Exponential Distribution
Salman Abbas, Fakhar Mustafa, Syed Ali Taqi, Selen Cakmakyapan, Gamze Ozel
Pages: 397 - 407
The inverse exponential distribution is widely used in the field of reliability. In this article, we present a generalization of the inverse exponential distribution in formation of Topp-Leone odd log-logistic inverse exponential distribution. We provide a comprehensive account of some mathematical properties...
Research Article
Two New Solvable Dynamical Systems of Goldfish Type
F. Calogero
Pages: 397 - 414
Two new solvable dynamical systems of goldfish type are identified, as well as their isochronous variants. The equilibrium configurations of these isochronous variants are simply related to the zeros of appropriate Laguerre and Jacobi polynomials.
Research Article
Characterizing Non-nesting for the Neyman-Pearson Family of Tests
Rahul Bhattacharya
Pages: 400 - 404
For testing a simple null hypothesis against a simple alternative using Neyman-Pearson theory, examples of most powerful non-randomized critical regions are constructed, which are overlapping for varying sizes. A likelihood ratio based criterion, characterizing such critical regions, is also provided....
Research Article
Interval-valued Evidence Updating with Reliability and Sensitivity Analysis for Fault Diagnosis
Xiaobin Xu, Zhen Zhang, Dongling Xu, Yuwang Chen
Pages: 396 - 415
Information fusion methods based on Dempster-Shafer evidence theory (DST) have been widely used in fault diagnosis. In DST-based methods, the monitoring information collected from sensors is modeled as multiple pieces of diagnosis evidence in the form of basic belief assignment (BBA), and Dempster’s...
Research Article
Dynamic Cumulative Residual and Past Inaccuracy Measures
Vikas Kumar, H.C. Taneja
Pages: 399 - 412
In this paper, we have developed measures of dynamic cumulative residual and past inaccuracy. We have studied characterization results under proportional hazard model in case of dynamic cumulative residual inaccuracy and under proportional reversed hazard model in case of dynamic cumulative past inaccuracy...
Research Article
Sundman Symmetries of Nonlinear Second-Order and Third-Order Ordinary Differential Equations
Norbert Euler, Marianna Euler
Pages: 399 - 421
We investigate the Sundman symmetries of second-order and third-order nonlinear odinary differential equations. These symmetries, which are in general nonlocal tranformations, arise from generalised Sundman transformations of autonomous equations. We show that these transformations and symmetries can...
Research Article
A New Distance-Based Consensus Reaching Model for Multi-Attribute Group Decision-Making with Linguistic Distribution Assessments
Shengbao Yao
Pages: 395 - 409
This paper proposes a novel consensus reaching model for multi-attribute group decision making (MAGDM) with information represented by means of linguistic distribution assessments. Firstly, some drawbacks of the existing distance measures for linguistic distribution assessments are analyzed by using...
Research Article
Algebro-geometric Constructions of Quasi Periodic Flows of the Discrete Self-dual Network Hierarchy and Applications
Dong Gong, Xianguo Geng
Pages: 395 - 427
In this paper we obtain the discrete integrable self-dual network hierarchy associated with a discrete spectral problem. On the basis of the theory of algebraic curves, the continuous flow and discrete flow related to the discrete self-dual network hierarchy are straightened using the Abel-Jacobi coordinates....
Research Article
Parameter Estimation of the Weighted Generalized Inverse Weibull Distribution
Sofi Mudasir, S.P. Ahmad
Pages: 395 - 406
Weighted distributions are used widely in many fields of real life such as medicine, ecology, reliability, and so on. The idea of weighted distributions was given by Fisher and studied by Rao in a unified manner who pointed out that in many situations the recorded observations cannot be considered as...
Research Article
The Bäcklund and the Galilei Invariant Transformations Constructed by Similarity Variables for Soliton Equations
Shunji Kawamoto
Pages: 398 - 404
The Painlevé-test has been applied to checking the integrability of nonlinear PDEs, since similarity solutions of many soliton equations satisfy the Painlevé equation. As is well known, such similarity solutions can be obtained by the infinitesimal transformation, that is, the classical similarity analysis,...
Research Article
Euler-Poincaré Formalism of (Two Component) Degasperis-Procesi and Holm-Staley type Systems
Partha Guha
Pages: 398 - 429
In this paper we propose an Euler-Poincaré formalism of the Degasperis and Procesi (DP) equation. This is a second member of a one-parameter family of partial dif- ferential equations, known as b-field equations. This one-parameter family of pdes includes the integrable Camassa-Holm equation as a first...
Research Article
Doubly periodic waves of a discrete nonlinear Schrodinger system with saturable nonlinearity
Robert Conte, K. W. Chow
Pages: 398 - 409
A system of two discrete nonlinear Schr¨odinger equations of the Ablowitz-Ladik type with a saturable nonlinearity is shown to admit a doubly periodic wave, whose long wave limit is also derived. As a by-product, several new solutions of the elliptic type are provided for NLS-type discrete and continuous...
Research Article
Text Categorization Based on Topic Model
Shibin Zhou, Kan Li, Yushu Liu
Pages: 398 - 409
In the text literature, many topic models were proposed to represent documents and words as topics or latent topics in order to process text effectively and accurately. In this paper, we propose LDACLM or Latent Dirichlet Allocation Category LanguageModel for text categorization and estimate parameters...
Research Article
Darboux integrability of a generalized Friedmann-Robertson-Walker Hamiltonian system
Jaume Llibre, Claudia Valls
Pages: 394 - 406
We study the Darboux first integrals of a generalized Friedmann-Robertson-Walker Hamiltonian system.
Research Article
Bayesian Approach to the Determination of the Kinetic Parameters of DNA Hairpins Under Tension
Marco Ribezzi-Crivellari, Mario Wagner, Felix Ritort
Pages: 397 - 410
In this paper we propose a Bayesian scheme for the determination of the unfolding and refolding kinetic rates of DNA hairpins under tension. This method is based on the hypothesis that the unfolding-refolding dynamics is well described by a Markov Chain. The results from the Bayesian method are contrasted...
Research Article
On the Characterizations of Chen’s Two-Parameter Exponential Power Life-Testing Distribution
M. Shakil, M. Ahsanullah, B. M. Golam Kibria
Pages: 393 - 407
Characterizations of probability distributions play important roles in probability and statistics. Before a particular probability distribution model is applied to fit the real world data, it is essential to confirm whether the given probability distribution satisfies the underlying requirements by its...
Research Article
Integrable Boundary Conditions for the Hirota-Miwa Equation and Lie Algebras
Ismagil Habibullin, Aigul Khakimova
Pages: 393 - 413
Systems of discrete equations on a quadrilateral graph related to the series DN(2) of the affine Lie algebras are studied. The systems are derived from the Hirota-Miwa equation by imposing boundary conditions compatible with the integrability property. The Lax pairs for the systems are presented. It...
Research Article
Proper rational and analytic first integrals for asymmetric 3-dimensional Lotka-Volterra systems
Jaume Llibre, Clàudia Valls
Pages: 393 - 404
We go beyond in the study of the integrability of the classical model of competition between three species studied by May and Leonard [19], by considering a more realistic asymmetric model. Our results show that there are no global analytic first integrals and we provide all proper rational first integrals...
Research Article
Computational Intelligence Based Decision Support Tool for Personalized Advertisement Assignment System
Kemal Kilic, Onur Bozkurt
Pages: 396 - 410
In this paper a comprehensive framework that maximizes advertising revenues of a company in a personalized advertisement setting is presented. The research was motivated from a real life problem faced by a company that develops a web based 3-D virtual reality social platform. The objective of the research...
Research Article
On Infinitesimal Symmetries of the Self-Dual Yang-Mills Equations
T.A. Ivanova
Pages: 396 - 404
Infinite-dimensional algebra of all infinitesimal transformations of solutions of the self-dual Yang-Mills equations is described. It contains as subalgebras the infinitedimensional algebras of hidden symmetries related to gauge and conformal transformations.
Research Article
*-Representations of the Quantum Algebra Uq(sl(3))
L.B. Turovskaya
Pages: 396 - 401
Studied in this paper are real forms of the quantum algebra Uq(sl(3)). Integrable operator representations of *-algebras are defined. Irreducible representations are classified up to a unitary equivalence.
Research Article
The Point of Maximum Curvature as a Marker for Physiological Time Series
James Robert Stirling, Maria Zakynthinaki
Pages: 396 - 406
We present a geometric analysis of the model of Stirling et al. [14]. In particular we analyze the curvature of a heart rate time series in response to a step like increment in the exercise intensity. We present solutions for the point of maximum curvature which can be used as a marker of physiological...
Review Article
Computing with Words in Risk Assessment
Jun Liu, Luis Martinez, Hui Wang, Rosa M. Rodriguez, Vasily Novozhilov
Pages: 396 - 419
This paper presents a comprehensive overview of currently known applications of computing with words (CWW) in risk assessment. It is largely grouped into the following 5 categories: (1) fuzzy number based risk assessment; (2) fuzzy rule-based risk assessment; (3) fuzzy extension of typical probabilistic...
Journal: eFood
Research Article
In vitro Anti-Inflammatory Potency of Sanguinarine and Chelerythrine via Interaction with Glucocorticoid Receptor
Jie Zhang, Yuan Liang, Li Ren, Tiehua Zhang
Pages: 392 - 398
As quaternary benzo[c]phenanthridine alkaloids, sanguinarine and chelerythrine possess multiple biological activities including anti-inflammatory effects. They have been confirmed to regulate gene expression of inflammatory-related cytokines at transcription level. This work aims to investigate the glucocorticoid-like...
Research Article
Multi-Layer Decision Methodology For Ranking Z-Numbers
Ahmad Syafadhli Abu Bakar, Alexander Gegov
Pages: 395 - 406
The new concept of a – number has been recently introduced in decision making analysis. This concept is capable of effectively dealing with uncertainty in information about a decision. As this concept is relatively new in fuzzy sets, its underlying theoretical aspects have not been established...
Research Article
The Eigenvectors of the Heisenberg Hamiltonian with Elliptic Form of the Exchange Spin Interaction
V.I. Inozemtsev
Pages: 395 - 403
The eigenvectors of the Hamiltonian HN of N-site quantum spin chains with elliptic exchange are connected with the double Bloch meromorphic solutions of the quantum continuous elliptic Calogero-Moser problem. This fact allows one to find the eigenvetors via the solutions to the system of highly transcendental...
Research Article
Model-Based Filtering via Finite Skew Normal Mixture for Stock Data
Solmaz Yaghoubi, Rahman Farnoosh
Pages: 391 - 396
This paper proposes a flexible finite mixture model framework using multivariate skew normal distribution for banking and credit institutions’ stock data in Iran. This method clusters time series stocks data of Iranian banks and credit institutions to filter those data into four groups. The proposed...
Research Article
Laplace Invariants for General Hyperbolic Systems
Chris Athorne, Halis Yilmaz
Pages: 391 - 410
We consider the generalization of Laplace invariants to linear differential systems of arbitrary rank and dimension. We discuss completeness of certain subsets of invariants.
Research Article
A New Criterion for Soft Set Based Decision Making Problems under Incomplete Information
José Carlos R. Alcantud, Gustavo Santos-García
Pages: 394 - 404
We put forward a completely redesigned approach to soft set based decision making problems under incomplete information. An algorithmic solution is proposed and compared with previous approaches in the literature. The computational performance of our algorithm is critically analyzed by an experimental...
Research Article
On Einstein Equations on Manifolds and Supermanifolds
D. Leites, E. Poletaeva, V. Serganova
Pages: 394 - 425
The Einstein equations (EE) are certain conditions on the Riemann tensor on the real Minkowski space M. In the twistor picture, after complexification and compactifcation M becomes the Grassmannian Gr4 2 of 2-dimensional subspaces in the 4-dimesional complex one. Here we answer for which of the classical...
Research Article
Improved Intelligent Vehicle Localization Using Magnetic Ruler
Chunxiang Wang, Ming Yang, Bing Wang, Haigui Xu, Hao Li
Pages: 394 - 401
This paper proposes an improved intelligent vehicle localization method, which integrates the data from the odometry and the magnetic ruler(MR). The MR is used to detect the magnetic markers, which provides the absolute positioning reference. The data from odometry and the MR are used to localize the...
Research Article
Two-component generalizations of the Novikov equation
Hongmin Li
Pages: 390 - 403
Some two-component generalizations of the Novikov equation, except the Geng-Xue equation, are presented, as well as their Lax pairs and bi-Hamiltonian structures. Furthermore, we study the Hamiltonians of the Geng-Xue equation and discuss the homogeneous and local properties of them.
Research Article
Riemann Invariants and Rank-k Solutions of Hyperbolic Systems
A.M. Grundland, B. Huard
Pages: 393 - 419
In this paper we employ a “direct method” to construct rank-k solutions, express- ible in Riemann invariants, to hyperbolic system of first order quasilinear differential equations in many dimensions. The most important feature of our approach is the analysis of group invariance properties of these solutions...
Research Article
Interval Mapping Using Nonparametric Accelerated Failure Time Cure Model
Devrim Bilgili, Nader Ebrahimi
Pages: 392 - 402
Many important problems in evolutionary biology begin with observations of phenotypic variation. Suppose time to an event-data are used to map quantitative trait loci (QTL) and underlying population is a mixture of susceptible and non-susceptible subjects. If the cured subjects are ignored we may fail...
Research Article
Conformally Invariant Ansätze for the Maxwell Field
Victor Lahno
Pages: 392 - 400
A general procedure for construction of conformally invariant Ansätze for the Maxwell field is suggested. Ansätze invariant with respect to inequivalent three-parameter subgroups of the conformal group are constructed.
Research Article
Similarity Reductions of the Zabolotskaya-Khokhlov Equation with a Dissipative Term
Masayoshi Tajiri
Pages: 392 - 397
Similarity reductions of the Zabolotskaya-Khokhlov equation with a dissipative term to one-dimensional partial differential equations including Burgers' equation are investigated by means of Lie's method of infinitesimal transformation. Some similarity solutions of the Z-K equation are obtained.
Research Article
Nonlinear Maxwell Equations
G.A. Kotelnikov
Pages: 391 - 395
The infinite series of Lorentz and Poincaré-invariant nonlinear versions of the Maxwell equations are suggested. Some properties of these equations are considered.