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Articles 1621 - 1650 of 2320
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Oscillation Of Second-Order Neutral Dynamic Equations With Mixed Arguments, Tao Ji, Shuhong Tang, Ethiraju Thandapani
Oscillation Of Second-Order Neutral Dynamic Equations With Mixed Arguments, Tao Ji, Shuhong Tang, Ethiraju Thandapani
Applied Mathematics & Information Sciences
We present some new oscillation criteria for a class of half-linear second-order neutral dynamic equations with mixed arguments. An example is given to illustrate the main results.
Symmetric Fibonacci Function Solutions Of Some Nonlinear Partial Differential Equations, Yusuf Pandir
Symmetric Fibonacci Function Solutions Of Some Nonlinear Partial Differential Equations, Yusuf Pandir
Applied Mathematics & Information Sciences
A new version of the Kudryashov’s method for solving non-integrable problems in mathematical physics is presented in this paper. New exact solutions of the heat conduction equation and K(m,n) equation with generalized evolution are obtained by using this method. The solutions gained from the proposed method have been verified with obtained by the (G′/G)-expansion method.
A Decomposition Algorithm For Solving A Three Level Large Scale Linear Programming Problem, T. I. Sultan, O. E. Emam, A. A. Abohany
A Decomposition Algorithm For Solving A Three Level Large Scale Linear Programming Problem, T. I. Sultan, O. E. Emam, A. A. Abohany
Applied Mathematics & Information Sciences
This paper presents a three level large scale linear programming problem in which the objective functions at every level are to be maximized. A three level programming problem can be thought as a static version of the Stackelberg strategy. An algorithm for solving a three planner model and a solution method for treating this problem are suggested. At each level we attempt to optimize its problem separately as a large scale programming problem using Dantzig and Wolfe decomposition method. Therefore, we handle the optimization process through a series of sub problems that can be solved independently. Finally, a numerical example …
Prime (M,N) Bi-Γ -Hyperideals In Γ -Semihypergroups, Naveed Yaqoob, Muhammad Aslam
Prime (M,N) Bi-Γ -Hyperideals In Γ -Semihypergroups, Naveed Yaqoob, Muhammad Aslam
Applied Mathematics & Information Sciences
Relations between rough sets and algebraic structures have been already considered by many mathematicians. Motivated by studying the properties of rough (m,n) bi-G -hyperideals in G -semihypergroups, we now introduced the notion of prime (m,n) bi- G -hyperideals in G -semihypergroups and investigated several properties of these prime (m,n) bi-G -hyperideals. Also we applied the rough set theory to these prime (m,n) bi-G -hyperideals and proved that the lower and upper approximation of a prime (m,n) bi-G - hyperideal is a prime (m,n) bi-G -hyperideal in a G -semihypergroup. In the end we established some results on rough prime (m,n) …
Recovery Of The Impulsive Diffusion Operator With Discontinuous Coefficient, Yaşar Cakmak, Seval Işık
Recovery Of The Impulsive Diffusion Operator With Discontinuous Coefficient, Yaşar Cakmak, Seval Işık
Applied Mathematics & Information Sciences
In this work impulsive diffusion operator with discontinuous coefficient is considered. Integral representation is derived and some important properties of eigenvalues are studied. Moreover, it is proven that the coefficients of the given problem are uniquely determined by the Weyl function.
Buffer Insertion For Delay Minimization Using An Improved Pso Algorithm, Gholamreza Karimi, Alireza Ahmadi
Buffer Insertion For Delay Minimization Using An Improved Pso Algorithm, Gholamreza Karimi, Alireza Ahmadi
Applied Mathematics & Information Sciences
This paper considers the problem of interconnect wire delay in digital integrated circuits. The correct wire sizing and buffer insertion/sizing can reduce the interconnect delay. The interconnect wire is divided into segments and to optionally buffers are inserted between two adjacent segments. But it is important to select appropriate values for the size of buffers as well as the lengths and widths of segments to minimize the delay. Since the delay is a multi-dimensional function, its optimizing process is complex and time-consuming. In this paper we introduce an improved particle swarm optimization for delay minimization. The aim is to reduce …
Unsteady Drainage Of Electrically Conducting Power Law Fluid, K. N. Memon, Sher Afzal Khan, S. Islam, Nazir Ahmad Zafar, Syed Feroz Shah, A. M. Siddiqui
Unsteady Drainage Of Electrically Conducting Power Law Fluid, K. N. Memon, Sher Afzal Khan, S. Islam, Nazir Ahmad Zafar, Syed Feroz Shah, A. M. Siddiqui
Applied Mathematics & Information Sciences
In this paper, the thin film flow of a power law MHD fluid on a vertical cylinder for a drainage problem has been studied. The nonlinear differential equation has been derived from the momentum equation by Jeffrey’s approach. Series solutions have been obtained for velocity, flow rate and thickness of the fluid film by Perturbation method. The graphical results for velocity profile and thickness of the film are discussed and examined for different parameters of interest.Without MHD our problem reduces to well known Newtonian and power law problem.
On Ideal Convergence Of Sequences Of Functions In Intuitionistic Fuzzy Normed Spaces, Vatan Karakaya, Necip Şi̇mşek, Müzeyyen Erturk, Faik Gursoy
On Ideal Convergence Of Sequences Of Functions In Intuitionistic Fuzzy Normed Spaces, Vatan Karakaya, Necip Şi̇mşek, Müzeyyen Erturk, Faik Gursoy
Applied Mathematics & Information Sciences
In this work, our purpose is to introduce I−convergence of sequences of functions in intuitionistic fuzzy normed space by combining the I−convergence, the sequences of functions and the intuitionistic fuzzy normed spaces, and to investigate relations among concepts such as I−convergence, statistical convergence and the usual convergence of sequences of functions in intuitionistic fuzzy normed space.
Certain Properties Of The Generalized Gauss Hypergeometric Functions, Praveen Agarwal
Certain Properties Of The Generalized Gauss Hypergeometric Functions, Praveen Agarwal
Applied Mathematics & Information Sciences
In this paper, we aim at establishing certain integral transform and fractional integral formulas for the generalized Gauss hypergeometric functions, which was introduced and studied by ¨Ozergin et al. [J. Comput. Appl. Math. 235(2011), 4601-4610]. All the results derived here a
Relative Homology Groups Of Digital Images, Ozgur Ege, Ismet Karaca, Meltem Erden Ege
Relative Homology Groups Of Digital Images, Ozgur Ege, Ismet Karaca, Meltem Erden Ege
Applied Mathematics & Information Sciences
In this paper we are interested in relative homology groups of digital images. Some properties of the Euler characteristics for digital images are given. We also present reduced homology groups for digital images. The main purpose is to obtain some differences between notions in digital topology and algebraic topology
A Hybrid Defense Technique For Isp Against The Distributed Denial Of Service Attacks, Young Hoon Moon, Suk Bong Choi, Huy Kang Kim, Changsok Yoo
A Hybrid Defense Technique For Isp Against The Distributed Denial Of Service Attacks, Young Hoon Moon, Suk Bong Choi, Huy Kang Kim, Changsok Yoo
Applied Mathematics & Information Sciences
As malicious traffic from botnets now threatens the network infrastructure of Internet Service Providers (ISPs), the importance of controlling botnets is greater than ever before. However, it is not easy to handle rapidly evolving botnets efficiently because of the highly evolved detection avoidance techniques used by botnet makers. Further, nowadays, Distributed Denial of Service (DDoS) attacks can compromise not only specific target sites but also the entire network infrastructure, as high-bandwidth Internet services are now being provided. Thus, ISPs are deploying their own defense systems to prevent DDoS attacks and protect their network infrastructure. However, the new problem ISPs confront …
Solving The Maximum Independent Set Problem Based On Molecule Parallel Supercomputing, Zhaocai Wang, Jian Tan, Lanwei Zhu, Wei Huang
Solving The Maximum Independent Set Problem Based On Molecule Parallel Supercomputing, Zhaocai Wang, Jian Tan, Lanwei Zhu, Wei Huang
Applied Mathematics & Information Sciences
The maximum independent set Problem is to find a biggest vertex independent set in a given undirected graph. It is a vitally important NP problem in graph theory and applied mathematics, having numerous real life applications. It can be difficultly solved by the electronic computer in exponential level time. Simultaneity in previous studies DNA molecular computation usually be used to solve NP-complete continuous path search problems (for example HPP, traveling salesman problem), rarely for NP problems with discrete vertex or path solutions result, such as the maximum independent set problem, graph coloring problem and so on. In this paper, we …
A Family Of Iterative Schemes For Finding Zeros Of Nonlinear Equations Having Unknown Multiplicity, Muhammad Aslam Noor, Farooq Ahmed Shah
A Family Of Iterative Schemes For Finding Zeros Of Nonlinear Equations Having Unknown Multiplicity, Muhammad Aslam Noor, Farooq Ahmed Shah
Applied Mathematics & Information Sciences
In this paper, we suggest and analyze a new family of iterative methods for finding zeros of multiplicity of nonlinear equations by using the variational iteration technique. These new methods include the Halley method and its variants forms as special cases. We also give several examples to illustrate the efficiency of these methods. Comparison with modified Newton method is also given. These new methods can be considered as an alternative to the modified Newton method. This technique can be used to suggest a wide class of new iterative methods for solving system of nonlinear equations.
Simplicial Relative Cohomology Rings Of Digital Images, Ismet Karaca, Gulseli Burak
Simplicial Relative Cohomology Rings Of Digital Images, Ismet Karaca, Gulseli Burak
Applied Mathematics & Information Sciences
The first goal of this paper is to show that the relative cohomology groups of digital images are determined algebraically by the relative homology groups of digital images. Then we state simplicial cup product for digital images and use it to establish ring structure of digital cohomology. Furthermore we give a method for computing the cohomology ring of digital images and give some examples concerning cohomology ring.
Reducing Mutation Testing Endeavor Using The Similar Conditions For The Same Mutation Operators Occurs At Different Locations, Tannu Singla, Ajay Kumar, Sunita Garhwal
Reducing Mutation Testing Endeavor Using The Similar Conditions For The Same Mutation Operators Occurs At Different Locations, Tannu Singla, Ajay Kumar, Sunita Garhwal
Applied Mathematics & Information Sciences
Mutation testing is a software testing technique that ameliorates the quality and reliability of critical software. This paper presents a mutation testing technique based on the concept of the same mutation operator under similar conditions occuring at different locations in the program. In the proposed technique, we assemble the tantamount behaviour of mutants under a group and a single mutant is selected from the group for performing mutation testing. The benefits of the proposed approach are a reduction in time, cost and effort.
Continuous Turing Machine: Real Function Computability And Iteration Issues, Xiaoliang Chen, Wen Song, Zexia Huang, Mingwei Tang
Continuous Turing Machine: Real Function Computability And Iteration Issues, Xiaoliang Chen, Wen Song, Zexia Huang, Mingwei Tang
Applied Mathematics & Information Sciences
Contemporary computer theory is governed by the discretization of continuous problems. Classical Turing machines (TMs) are originally built to solve computation and computability problems, which main feature is discreteness. However, even some simple numerical calculations problems, e.g., iterations in Rn, generate difficulties to be described or solved by constructing a TM. This paper explores the computability of continuous problems by proposing a class of continuous Turing machines (CTMs) that are an extension of TMs. CTMs can be applied to the standard for the precision of algorithms. First, computable real numbers are precisely defined by CTMs and their computations are regarded …
Computing Higher Dimensional Digital Homotopy Groups, Elif Tugce Meric, Tane Vergili, Ismet Karaca
Computing Higher Dimensional Digital Homotopy Groups, Elif Tugce Meric, Tane Vergili, Ismet Karaca
Applied Mathematics & Information Sciences
In this paper, we study out a method for computing digital homotopy groups in higher dimensions. We investigate the relation between a digital image and its nth homotopy group when n is greater than 1 and show that a digital covering map which is a radius 2 local isomorphism induces an isomorphism between digital homotopy groups in higher dimensions.
Application Of Differential Geometry In Magnetic Levitation Control, Hengkun Liu, Yungang Li, Hu Cheng
Application Of Differential Geometry In Magnetic Levitation Control, Hengkun Liu, Yungang Li, Hu Cheng
Applied Mathematics & Information Sciences
To enhance the reliability of levitation, an especial installation called joint-structure is applied to the maglev vehicle. Due to the joint-structure, each suspension point of the maglev vehicle is regulated by two independent controllers.When one controller of the suspension point breaks down, the system can still be stably suspended by the other controller. However, there is strong force-coupling between the two controllers for the joint-structure, which makes the controller designed based on totally separated suspension point unsuccessful in application. To realize stable suspension for joint-structure, diffenrential geometry method is introduced to obtain a globally decoupling and linearized model for the …
Chinese-Chess Image Recognition By Using Feature Comparison Techniques, Wen-Yuan Chen
Chinese-Chess Image Recognition By Using Feature Comparison Techniques, Wen-Yuan Chen
Applied Mathematics & Information Sciences
In this paper, we develop a feature comparison method for the Chinese-chess object by using the features comparison based on input image and database. Features are generated by calculating the distance between the contour of the character and the centre of the chess object. In this paper, the noise filter, object extraction, normalization, feature calculation (FC) and maximum energy slop (MES) method are used to achieve robust Chinese-chess recognition. There are two advantages when compared with other methods. 1) Our method is robust against the 40 incline degree attacks. 2) Our method can resist the 20% pepper and salt noise …
Design For Several Hydraulic Parameters Of A Quadruped Robot, Xuewen Rong, Yibin Li, Jian Meng, Bin Li
Design For Several Hydraulic Parameters Of A Quadruped Robot, Xuewen Rong, Yibin Li, Jian Meng, Bin Li
Applied Mathematics & Information Sciences
For a quadruped robot with 12 active joints driven by linear hydraulic actuators, some important parameters, such as the oil flow of the hydraulic system and the needed maximum output force of each actuator, are hard to calculate precisely with kinematics and dynamics equations. The oil flow is mainly determined by the walking speed of the quadruped robot, but also influenced by the stride frequency, gait type and the foot trajectory. This paper planned the foot trajectory with cubic polynomial firstly. Then selected optimal stride frequency referred to that of four-legged mammals and stride length according to the required walking …
Operator Based Robust Nonlinear Control Design To An Ionic Polymer Metal Composite With Uncertainties And Input Constraints, Aihui Wang, Gong Wei, Hui Wang
Operator Based Robust Nonlinear Control Design To An Ionic Polymer Metal Composite With Uncertainties And Input Constraints, Aihui Wang, Gong Wei, Hui Wang
Applied Mathematics & Information Sciences
In this paper, robust nonlinear control design to an ionic polymer metal composite (IPMC) with uncertainties and input constraints is studied. The IPMC is a novel smart polymer material, and many potential applications for low mass high displacement actuators in biomedical and robotic systems have been shown. In general, the IPMC has highly nonlinear property, and the control input is subject to some constraints to ensure safety and longer service life of IPMC. Moreover, there exist uncertainties caused by identifying some physical parameters and approximate calculation in dynamic model. As a result, considering measurement error of parameters and model error, …
Fuzzy Stabilizer In Imtl-Algebras, Maosen Xie
Fuzzy Stabilizer In Imtl-Algebras, Maosen Xie
Applied Mathematics & Information Sciences
In this paper, we introduced two types of fuzzy stabilizers St⊗ R (F) and St⊕ R (F) of a fuzzy set F and the stabilizer St∨(F, G) of F with respect to G in IMTL-algebras. We proved that St⊗ R (F), St⊕ R (F) and St∨(F, G) are fuzzy filters of M. We investigated some properties of the stabilizers. By introducing the e⊗ operation of two fuzzy filters, we prove that e⊗ and St∨(·, ·) form an adjoint pair and the set of all fuzzy filters F(M) is a residuated lattice.
The B?Cklund Transformation And Exact Solutions For The Equivalent Dodd-Bullough-Mikhailov (E-Dbm) Equation, Weimin Zhang
The B?Cklund Transformation And Exact Solutions For The Equivalent Dodd-Bullough-Mikhailov (E-Dbm) Equation, Weimin Zhang
Applied Mathematics & Information Sciences
In this paper, the E-DBM equation is studied. The B?cklund transformation for this equation is obtained by using the homogeneous balance (HB) method. And some new solitary wave solutions, including double peakon solitary wave solutions and peakon singular solitary wave solutions, are given by the transformation.
Analysis Of The Relationship Between Patent Litigation And Citation: Subdivision Of Citations, Jiyoun Lim
Analysis Of The Relationship Between Patent Litigation And Citation: Subdivision Of Citations, Jiyoun Lim
Applied Mathematics & Information Sciences
Recent examples of patent litigation show the evidence of firms strategic patent use. Thus forecasting patent litigation becomes a greater priority. Patent citations have been prevalent in its usage in analyzing business environment as diverse patent indicators or a tool to predict patent litigation. However, most previous research has considered only direct patent citations. In order to overcome the limitation, this study analyzes patent litigation quantitatively through three kinds of patent citations: direct, indirect and latent citation, and empirically analyzed the relationship between these citations and patent litigation between plaintiff and defendant firms based on U.S. patent documents and patent …
Some New Comparison Theorems For Double Splittings Of Matrices, Cui-Xia Li, Shi-Liang Wu
Some New Comparison Theorems For Double Splittings Of Matrices, Cui-Xia Li, Shi-Liang Wu
Applied Mathematics & Information Sciences
In this paper, we further investigate the double splitting iterative methods for solving linear systems. Building on the previous work by Song and Song [Convergence for nonnegative double splittings of matrices, Calcolo, (2011) 48: 245-260], some new comparison theorems for the spectral radius of double splittings of matrices under suitable conditions are presented.
A New Intelligent Motion Planning For Mobile Robot Navigation Using Multiple Adaptive Neuro-Fuzzy Inference System, Prases K. Mohanty, Dayal R. Parhi
A New Intelligent Motion Planning For Mobile Robot Navigation Using Multiple Adaptive Neuro-Fuzzy Inference System, Prases K. Mohanty, Dayal R. Parhi
Applied Mathematics & Information Sciences
Nowadays intelligent tools such as fuzzy inference system (FIS), artificial neural network (ANN) and adaptive neuro-fuzzy inference system (ANFIS) are mainly considered as effective and suitable methods for modeling an engineering system. This paper presents a new hybrid technique based on the combination of fuzzy inference system and artificial neural network for addressing navigational problem of autonomous mobile robot. First we developed an adaptive fuzzy controller with four input parameters, two output parameters and three parameters each. Afterwards each adaptive fuzzy controller acts as a single takagi-sugeno type fuzzy inference system, where inputs are front obstacle distance (FOD), left obstacle …
Research On Comprehensive Performance Evaluation Of Cultivation Machinery For Tea Garden, Xiao Hongru, Mei Song, Song Zhiyu, Ding Wenqin, Han Yu
Research On Comprehensive Performance Evaluation Of Cultivation Machinery For Tea Garden, Xiao Hongru, Mei Song, Song Zhiyu, Ding Wenqin, Han Yu
Applied Mathematics & Information Sciences
Tea garden tiller is one of the most widely used in China, which is indispensable equipment for soil tilling in tea garden. The performance of tea garden tiller is always focused on when being used. Meanwhile, researches on evaluating the performance of tea garden tiller have been rarely reported. So it is of importance to find a methodology to evaluate tiller’s performance. In this paper, the important indexes of tiller performances are presented firstly, including fuel consumption, cultivation time, cultivation depth, cultivation width and soil crushing ratio. Then these indexes for eight different types of cultivation machineries from home and …
Cloud Service Under The Presence Of Privacy Concern, Eunjin Kim
Cloud Service Under The Presence Of Privacy Concern, Eunjin Kim
Applied Mathematics & Information Sciences
Privacy is an important issue for cloud computing in terms of user trust. Hence, it needs to be considered in its service design. In this study, we investigate the impact of privacy concern on cloud service design in terms of collecting and storing information of users. With an analytical model, we show that, in the presence of privacy concern of users and cloud service firms’ difference in their service ability in utilizing users’ information for their cloud service, a firm that possesses inferior service ability might choose to demand and require users to input and store user information that include …
Fast Watermarking Of Traffic Images Secure Transmission In Effective Representation Mode, Ren Shuai, Lei Jingxiang, Zhang Tao, Duan Zongtao
Fast Watermarking Of Traffic Images Secure Transmission In Effective Representation Mode, Ren Shuai, Lei Jingxiang, Zhang Tao, Duan Zongtao
Applied Mathematics & Information Sciences
A static image secure transmission in effective representation mode for transportation systems was advanced based on fast watermarking theory. Firstly, the characteristics of image stream recognition in intelligent transportation system were analyzed and traffic image stream reorganization model was constructed. Then, according to effective representation mode, fast watermarking algorithms of image stream for intelligent transportation system were proposed, such as feature extraction-, compressive sensing- and sparse representation-based algorithms and detailed introduction of the first algorithm was given. Finally, referring to the evaluation criterion of digital watermarking and features of traffic static image, the performance of the above three algorithms are …
A Secure Anonymous E-Voting System Based On Discrete Logarithm Problem, Chin-Ling Chen, Yu-Yi Chen, Jinn-Ke Jan, Chih-Cheng Chen
A Secure Anonymous E-Voting System Based On Discrete Logarithm Problem, Chin-Ling Chen, Yu-Yi Chen, Jinn-Ke Jan, Chih-Cheng Chen
Applied Mathematics & Information Sciences
In this paper, we propose a practical and secure anonymous Internet voting protocol. This method integrates Internet reality and cryptology. Issues such as the kinds of “certificate authority” and “public proxy server” are integrated in our scheme to solve the Internet identification and anonymity problems. To combine and make up a series of ElGamal blind signature and secret sharing cryptosystem, this protocol can be applied to a secure, practical, and fair voting system.