The short backfire antenna is one of the important types antennas due to its high directional and other characteristics. Therefore, this research deals with, a theoretical study calculate radiative structures as an axially symmetric body using moment method. main goal theoretically radiation fields compare them with previous practical researches. Where mathematical analysis used software was ve...

In this paper we study the structure of the manifold of solitary waves in some deformations of SO(2) symmetric two-component scalar field theoretical models in two-dimensional Minkowski space. The deformation is chosen in order to make the analogous mechanical system Hamilton-Jacobi separable in polar coordinates and displays a singularity at the origin of the internal plane. The existence of t...

The paper presents the concept of embeddedness of economic activity in relation to agriculture. In this perspective, economic activity can be considered dependent on cognitive structures, structures of social relations, culture, and political institutions. It has been concluded that the idea of embeddedness can be an interesting and useful analytical tool for the analysis of economic activity u...

Using theoretical models, we undertake the first investigation into the synergy and rich phase behavior that emerges when binary particle mixtures are blended with microphase-separating copolymers. We isolate an example of spontaneous hierarchical self-assembly in such hybrid materials, where the system exhibits both nanoscopic ordering of the particles and macroscopic phase transformation in t...

When modelling an employee competency, several facets of this theoretical construct could be identified. One of them is grounded in the employee’s attitudes to work and organization, namely in her/his job involvement, organizational commitment, responsibility etc. The paper deals with results of a survey comparing work and organizational attitudes of four groups of subjects. The groups differed...

The main purpose of the present study is to help managers cope with the negative effects of technostress on employee use of ICT. Drawing on transaction theory of stress (Cooper, Dewe, & O’Driscoll, 2001) and information systems (IS) continuance theory (Bhattacherjee, 2001) we investigate the effects of technostress on employee intentions to extend the use of ICT at work. Our results show that f...

In this paper, we discuss the current state of organic and molecular-scale electronics, some experimental methods used to characterize charge transport through molecular junctions and some theoretical models (superexchange and barrier tunnelling models) used to explain experimental results. Junctions incorporating self-assembled monolayers of organic molecules - and, in particular, junctions wi...

The popup data communication beacon (PDCB) can send to the shore and ships through BeiDou navigation satellite system (BDS) when it surfaces. be collected by a deep-sea landing vehicle (DSLV) transmitted using magnetic induction coil. PDCBs reduce cost of DSLV recovery redeployment. Whether successfully sent mainly depends on outlet height roll angle PDCB. Thus, accurately assessing effect tran...