This paper investigates the non-linear in-plane buckling of pin-ended shallow circular arches with elastic end rotational restraints under a central concentrated load. A virtual work method is used to establish both the ...
This paper proves that the optimization problem of one-step point feature Simultaneous Localization and Mapping (SLAM) is equivalent to a nonlinear optimization problem of a single variable when the associated uncertainties ...
The first objective of this paper is to introduce a nonlinear system to model the heart rate (HR) response during and after treadmill walking exercise. The model is a feedback interconnected system that has components to ...
Zhang, Yi; Chen, Weidong; Su, Steven; Celler, Branko(Inderscience, 2012)
In order to accurately regulate cardiovascular response to exercise for individual exerciser, this study proposes a modelling and control integrated approach based on ε-insensitive Support Vector Regression (SVR) and ...
Li, X.Y.; Ji, Jin; Hansen, Colin(Pergamon-Elsevier Science Ltd, 2006)
The non-linear normal modes (NNMs) and their bifurcation of a complex two DOF system are investigated systematically in this paper. The coupling and ground springs have both quadratic and cubic non-linearity simultaneously. ...
In this paper an element for nonlinear analysis of reinforced concrete framed structures subjected to torsion is developed using a force-based formulation. The interaction between the axial force and bending moment is taken ...
This paper presents the formulation of a one-dimensional (1D) composite frame element for the nonlinear static and cyclic analysis of concrete-filled steel (CFS) beama??columns. A two-node frame element is formulated using ...
This paper presents a nonlinear thermal buckling analysis of circular shallow pin-ended arches that are subjected to a linear temperature gradient field in the plane of curvature of the arch. The linear temperature gradient ...
Valipour Goudarzi, Hamid Reza; Foster, Steven(American Society of Civil Engineers - ASCE, 2009)
This paper presents the formulation for a novel flexibility-based one-dimensional 1D finite element that captures material and structural softening within a reinforced concrete framed structure. Separating the total ...
In this paper, a nonorthogonal locally 1-D finite difference time-domain (LOD-NFDTD) method is presented for electromagnetic (EM) scattering involving curvilinear coordinate system. Formulations of scattered field and ...
Erkmen, Recep; Mohareb, Magdi(Natl Research Council Canada, 2006)
Conventional solutions for the equations of equilibrium based on the well-known Vlasov thin-walled beam theory uncouple the equations by adopting orthogonal coordinate systems. Although this technique considerably simplifies ...
Erkmen, Recep; Mohareb, Magdi(Natl Research Council Canada, 2006)
):In a companion paper (R.E. Erkmen and M. Mohareb. 2006. Canadian Journal of Civil Engineering, 33: 421?439.), three finite elements based on the Vlasov thin-walled beam theory were formulated using a nonorthogonal ...
The trivial equilibrium of a van der Pol-Duffing oscillator with a nonlinear feedback control may lose its stability via Hopf bifurcations, when the time delay involved in the feedback control reaches certain values. ...
It is known that the design of optimal transmit beamforming vectors for cognitive radio multicast transmission can be formulated as indefinite quadratic optimization programs. Given the challenges of such nonconvex problems, ...
Directional reflectance measurements were made over a semidesert gramma (Bouteloua spp.) grassland at various times of the growing season. Azimuthal strings of view angle measurements from + 40? to - 40? were made for ...
Since distance relays are prone to interpret a power swing as a three-phase fault, they should be blocked during the power swing to prevent undesired trips. On the other hand, if any fault occurs during a power swing, they ...
A novel approach based on the finite element method is proposed to calculate accurately the winding losses and short circuit forces caused by harmonic currents in a furnace transformer. The technique derives the appropriate ...
Conventional switching-table-based direct torque control (DTC) presents large torque and flux ripples as well as variable switching frequency. Many methods have been proposed to tackle the aforementioned problems, among ...
The development of nanostructured microcapsules based on a biomimetic lipid bilayer membrane (BLM) coating of poly(SODIUM STYRENESUFONATE) (pss) /POLY(ALLYLAMINE HYDROCHLORIDE) (pah) POLYELECTROLYTE HOLLOW MICROCAPSULES ...
Ling, Steve; Leung, Frank; Lam, Hak-Keung; Lee, Y S; Tam, P K S(IEEE-Inst Electrical Electronics Engineers Inc, 2003)
This paper presents a neural network with a novel neuron model. In this model, the neuron has two activation functions and exhibits a node-to-node relationship in the hidden layer. This neural network provides better ...