METHOD FOR IDENTIFYING NON-LINEAR RELATIONSHIPS BETWEEN INDICATORS OF POPULATION LIFE QUALITY IN THE RUSSIAN FEDERATION REGIONS AND CHILDREN’S DEATH IN FIRES

В статье рассмотрено применение метода выявления значимости и важности нелинейных связей показателей качества жизни населения в регионах Российской Федерации и показателей гибели/травматизма детей на пожарах. Показано, что система нелинейных связей существенно более сложная, чем система линейных связей. The article considers the application of the method for identifying significance and importance of nonlinear relationships between the indicators of population life quality in the Russian Federation regions and the indicators of children’s death in fires. It is shown that the system of nonlinear connections is significantly more complex than the system of linear connections.

CONSIDERING NONLINEAR CONNECTIONS IN THE INDIVIDUAL PERFORMANCE MANAGEMENT MODEL

To discuss nonlinear connections between constructs of the conceptual model of individual employee performance management in Slovenian service sector. Constructs were analyzed with the validated measurement instrument, adapted to the Slovenian context due to preliminary research. Existence of significant nonlinear connections between them was checked by structural equation modeling. The software tool Warp PLS 5.0. based on the Warp2 algorithm was used. Holistic employee development methods significantly improve employees’ work satisfaction, individual performance, and well-being. The quality of the conceptual model obtained with Warp PLS 5.0 supports the consideration of nonlinear connections between constructs. They exist between the constructs of the conceptual model of the individual employee performance management system in e.g. the Slovenian service sector. Results make employees and managers aware that existing performance management systems are inadequate. Hence, one must place this knowledge of the situation and trends of individual work performance as the basis for sensible management action, including new performance management systems based on a requisitely holistic approach, focusing on the individuals and their performance, not on the performance management system. The designed employee performance model is individually oriented and applies mentoring, coaching, sponsorship and intergenerational cooperation. It clarifies how one can use holistic employee development to improve individual employee performance, job satisfaction, and well-being.

Nonlinear substructuring in the modal domain: numerical validation and experimental verification in presence of localized nonlinearities

In many systems of interest, most of the structure is well approximated as linear but some parts must be treated as nonlinear to get accurate response predictions: significant nonlinear effects are due to the connections between coupled subsystems, such as in automotive or aerospace structures. The present work aims at predicting the nonlinear behavior of coupled systems using a substructuring technique in the modal domain. This study focuses on the effects of nonlinear connections on the dynamics of an assembly in which the coupled subsystems can be considered as linear. Each connection is instead considered as a quasi-linear substructure with stiffness that is function of amplitude or energy. The iterative procedure used here is enhanced with respect to previous works by enforcing a better control of the total energy at each iteration allowing to obtain the solution for a prescribed set of energy levels. Also, the initial guess and the convergence criterion have been modified to speed up the procedure. This technique is applied to a system made of two continuous linear subsystems coupled by nonlinear connections. The numerical results of the coupling are first compared to the ones obtained by using the Harmonic Balance technique on the model of the complete assembly to evaluate its effectiveness and understand the effects of modal truncation. Besides, a nonlinear connecting element, specifically designed in order to have a nearly cubic hardening behavior, is used in an experimental setup. Substructuring results are compared to experimental results measured on the assembled system, in order to evaluate the correlation between mode shapes and the accuracy in the resonance frequency at several excitation levels.

On the k-Semispray of Nonlinear Connections in k-Tangent Bundle Geometry

In this paper we present a method by which is obtained a sequence of k-semisprays and two sequences of nonlinear connections on thek-tangent bundle TkM starting from a given one. Interesting particular cases appear for Lagrange and Finsler spaces of orderk.