A new diagonally implicit Runge-Kutta-Nyström (RKN) method is developed for the integration of initial-value problems for second-order ordinary differential equations possessing oscillatory solutions. Presented is a method which is three-stage fourth-order with dispersive order six and 'small' principal local truncation error terms and dissipation constant. The analysis of phase-lag, dissipatio...

Because of the wide variety of composite materials that are available, and the expense involved in testing to measure properties for design purposes (such as their damage tolerance), there is a need to develop predictive methods that can readily be utilised on desk-top computers. It is inevitable that such methods will be based on analytical rather than finite element techniques. A review is gi...

In view of the control of the thermoelastic thin shells, we consider the problem of modeling a dynamic thin shell with thermal effects, using the coordinate-free intrinsic model introduced by Michel Delfour and Jean-Paul Zolésio (5; 4). The aim of this method is to produce a coordinate free version of the shell equations, in contrast to the classical equations which require explicit representat...

This article examines whether domestic saving rate leads to higher domestic investment rate in the case of Malaysia. We argue that the results obtained from cross-sectional studies are not able to address this issue satisfactorily and highlight the importance of individual country case studies. Using the recently developed autoregressive distributed lag bounds testing procedure, the results rev...

The thermoelastic stress analysis for linear thermoelastic bodies is developed as a mathematical support to the infra-red radiometric method (SPATE) applied to structures under cyclic loading conditions.

The wave propagation in viscothermoelastic materials is discussed the present work using nonlocal thermoelasticity model. This model was created Lord and Shulman generalized thermoelastic due to consequences of delay times formulations heat conduction motion equations. Eringen’s theory continuum. linear Kelvin–Voigt viscoelasticity explains viscoelastic properties isotropic material. analytical...

Salmonella enterica serovar Typhimurium was grown at salt concentrations ranging from 0.5 to 7.5% in minimal medium with and without added osmoprotectant and in a rich medium. In minimal medium, the cells showed an initial decline period, and consequently the definition of the lag time of the resultant log count curve was revised. The model of Baranyi and Roberts (Int. J. Food Microbiol. 23:277...

Superelastic NiTi (51.0 at.% Ni) specimens reinforced with 0, 10 and 20 vol.% TiC particles were deformed under uniaxial compression while neutron diffraction spectra were collected. The experiments yielded in-situ measurements of the thermoelastic stress-induced transformation. The evolution of austenite/martensite phase fractions and of elastic strains in the reinforcing TiC particles and the...

The purpose of this paper is to explain the thermodynamical and shape memory behaviour in comparison with structural parameters for Zr-based intermetallics a new class of potential shape memory alloys (SMA) for high-temperature applications [I]. Electrical resistivity, structural, shape memory and calorimetric measurements were carried out for the Zr2CuNi Zr,CuCo quasibinary cross-section. It w...