Results 71 to 80 of about 133,666 (191)

Computing Comprehensive Grobner Systems: A Comparison of Two Methods [PDF]

Computer Science Journal of Moldova, 2017
In this paper, we consider two main approaches to compute Gr\"obner bases for parametric polynomial ideals, namely the {\sc DisPGB} algorithm developed by Montes \cite{monts1} and the {\sc PGBMain} proposed by Kapur, Sun and Wang \cite{kapur}.
Amir Hashemi , Benyamin M.-Alizadeh, Mahdi Dehghani Darmian   +2 more
doaj  

Path Planning of Free-Floating Robot in Cartesian Space Using Direct Kinematics

International Journal of Advanced Robotic Systems, 2007
Dynamic singularities make it difficult to plan the Cartesian path of free-floating robot. In order to avoid its effect, the direct kinematic equations are used for path planning in the paper.
Wenfu Xu, Bin Liang, Cheng Li, Yangsheng Xu, Wenyi Qiang   +4 more
doaj   +1 more source

Feng's first-integral method to traveling wave solutions of the Ostrovsky system

Electronic Journal of Differential Equations, 2019
In this paper, we apply Feng's first-integral method to study traveling wave solutions to a two-component generalization of the Ostrovsky system. We convert the two-component generalization of the Ostrovsky system to an equivalent autonomous system ...
Kehua Li, Zhihong Zhao
doaj  

Robust Model Predictive Control for Dynamics Compensation in Real-Time Hybrid Simulation

Frontiers in Built Environment, 2020
Hybrid simulation is an efficient method to obtain the response of an emulated system subjected to dynamic excitation by combining loading-rate-sensitive numerical and physical substructures.
Nikolaos Tsokanas, David Wagg, Božidar Stojadinović   +2 more
doaj   +1 more source

A Sum-of-Squares Approach to the Analysis of Zeno Stability in Polynomial Hybrid Systems

, 2013
Hybrid dynamical systems can exhibit many unique phenomena, such as Zeno behavior. Zeno behavior is the occurrence of infinite discrete transitions in finite time.
Murti, Chaitanya, Peet, Matthew
core   +1 more source

Childhood Obesity Risk and the Role of Primary Caregivers: A Triangular Semi-parametric Simultaneous Equations Approach [PDF]

This essay investigates the impacts of primary care giver’s (PCG) time allocation and food expenditure choices on childhood obesity using national panel study of income dynamic (PSID) data.
Nayga, Rodolfo M., Jr., Xue, Hong, You, Wen   +2 more
core   +1 more source

Resultant Tools for Parametric Polynomial Systems with Application to Population Models

, 2022
We are concerned with the problem of decomposing the parameter space of a parametric system of polynomial equations, and possibly some polynomial inequality constraints, with respect to the number of real solutions that the system attains. Previous studies apply a two step approach to this problem, where first the discriminant variety of the system is ...
Sadeghimanesh, AmirHosein, England, Matthew   +1 more
openaire   +2 more sources

Analysis of parametric biological models with non-linear dynamics

, 2012
In this paper we present recent results on parametric analysis of biological models. The underlying method is based on the algorithms for computing trajectory sets of hybrid systems with polynomial dynamics. The method is then applied to two case studies
Asarin, Batt, Batt, Belta, Berman, Britton, Chen, Clauss, Dang, Dang, Dang, Drulhe, Ezio Bartocci, Fotiou, Garloff, Grosu, H. Prautzsch and W. Boehm, Henzinger, I. Tchoupaeva, J. Garloff, J. Garloff and A.P. Smith, Luca Bortolussi, Prajna, Romain Testylier, S. Boyd and S. Vandenberghe, Sankaranarayanan, Thao Dang, Thao Dang   +27 more
core   +3 more sources

Classification of All Non-Isomorphic Regular and Cuspidal Arm Anatomies in an Orthogonal Metamorphic Manipulator

Robotics, 2020
This paper proposes a classification of all non-isomorphic anatomies of an orthogonal metamorphic manipulator according to the topology of workspace considering cusps and nodes.
Christos Koukos-Papagiannis, Vassilis Moulianitis, Nikos Aspragathos   +2 more
doaj   +1 more source

First integral method for an oscillator system

Electronic Journal of Differential Equations, 2013
In this article, we consider the nonlinear Duffing-van der Pol-type oscillator system by means of the first integral method. This system has physical relevance as a model in certain flow-induced structural vibration problems, which includes the van ...
Xiaoqian Gong, Jing Tian, Jiaoyan Wang
doaj