The harmonic balance method is used to construct approximate frequency–amplitude relations and periodic solutions to the relativistic oscillator. By combining linearization of the governing equation with the harmonic balance method, we construct analytical approximations to the oscillation frequencies and periodic…

In this paper we present the study of the electrochemical properties of the following conducting polymers: poly(o-anisidine),
polyaniline and copolymers of aniline and o-anisidine obtained by a new synthetic method. The polymers are synthesized
in free-of-acid conditions, using an activated…

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Data Warehouses manage historical information for the decision making process, and this information could be discovered by unauthorized users if security constraints are not established. It is therefore highly important for OLAP tools to consider the security rules defined at…

China’s growing economic importance has led to a significant increase in the volume of empirical research about business and management in this country during the last few years. This study reviews the 180 empirical papers focusing on the Chinese context…

Our intention in this paper is to shortly address some of the basic categories that determine the paradigm of sport culture as we know it. We do believe that by understanding these basic categories the changes of prevailing sport paradigm,…

The current study attempts to describe the free time of City of Havana (Cuba) population older than 15 years, distinguishing between word days, weekends and vacation and holiday periods, determining the population's socio-demographic profile. The object population of study numbers…

Mobile agent technology has traditionally been recognized as a very useful approach to build applications for mobile computing and wireless environments. However, only a few studies report practical experiences with mobile agents in a mobile medium. This leads us to…

This article will evolve around the subject of female integration and participation in athletics in the Olympic Games, analyzing the initial difficulties they encountered, the role played by sports institutions as well as international federations and the Olympic International Committee.

This paper deals with the non-linear oscillation of a simple pendulum and presents an approach for solving the non-linear differential equation that governs its movement by using the harmonic balance method. With this technique it is possible to easily obtain…