In opinion of substructure cascade, multimode feed network is composed of impedance transforming substructure and isolating substructure. Starting from the characteristic of the substructure in multimode feed network, a method of measurement for its three-port scatter parameters of substructure is presented, based on the applying of the available two-port vector network analyzer (VNA), consider...

This paper introduces an autonomous towed vehicle which has various navigation modes; towed mode, autonomous mode and kite mode, to stand against fast and changeable sea currents. The property assures safe and reliable observation works irrespective of a current speed. Such vehicle must be useful for port area application since in a port area sea currents are so fast and complex. The different ...

Congenital pulmonary malformations (CPM) comprise a group of anatomical abnormalities of the respiratory tree including congenital cystic malformations, bronchopulmonary sequestrations, bronchogenic cyst, bronchial atresia and congenital lobar emphysema.Socioeconomic, demographic, and hospital factors were determinants of survival of CPM. Antenatal diagnosis should be developed in order to impr...

In this paper, we have given the scalar modes and discussed the coupling characteristics of an eight-port waveguide coupler consisting of four parallel single-mode waveguides. The analysis is based on a rectangular waveguide model which has been known to give accurate results in the case of two waveguide directional couplers. A classification of its various scalar modes is also given.

This paper proposes a continental approach to the combination of transport functions within European port cities. It reviews a number of concepts and theories, regarding with transport chain integration and urban centrality in the case of ports. While many studies on intermodalism face a lack of quantifiable data, this research proposes an original methodology based on employment. The data is c...

This work reports on theoretical and experimental study of zero-order as well as high-order symmetric and asymmetric modes of Lamb-wave resonators and delay line structures realized in single-crystalline GaN thin films. We investigate the phase velocity, dispersion characteristics, electromechanical coupling (kt), motional impedance (Rm) and Quality factor (Q) of different Lamb-wave modes (e.g....

The influence of the configuration of the Nexus trace port for on-chip-instruction-trace with regard to the achievable compression ratio is studied in detail. On the base of the EEMBC Automotive Benchmark Software a wide range of configurations and trace modes is analyzed. The impacts of the port width, the count of MSEO-bits, the basic messaging mode and the addition of timestamp information t...

This article aims to investigate the location of dry ports by providing a two-stage GIS-optimization model. At the first stage, the appropriate points for establishing dry ports were identified using GIS and hierarchical analysis process; then, the suitable points were introduced as the potential points to the second stage model. At the second stage, by providing a multi-objective integer model...

Characteristic modes can be used to solve many radiation and scattering problems involving fully conducting structures. The basic concept is use eigenvalues eigenvectors of the characteristic mode equations a certain topology, these eigenmode currents control radiating structure’s behavior. This accomplished by understanding overall reflection characteristics across operating frequency band. Mo...