Background: Marine pollution is a global environmental problem that its monitoring by ideal biomonitors is of great importance. Marine organisms, especially mussels, have the ability to accumulate metals from the environment they can be considered as a biomonitoring agent. Methods: In this study, concentrations of heavy metals were measured in Saccostrea cucullata collected from seven sites on...

This paper focuses on a fuzzy logic based intelligent decision making system that aims to improve the safety of marine vessels by avoiding collision situations. It can be implemented in a decision support system of an oceangoing vessel or included in the process of autonomous ocean navigation. Although Autonomous Guidance and Navigation (AGN) is meant to be an important part of future ocean nav...

The article deals with the impact of ecosystem on operability ship power systems. It is shown, that influence caused by fouling a vessel hull various microorganisms, spontaneous destruction external structures vessels and hydrometeorological factors. Methods solving problem complexes marine equipment are given.

Purpose: The aim of the work was a numerical and experimental analysis of spine’s transpedicular stabilizer on lumbar part of spine. The result of the analysis was determination of displacements of the stabilizers’ elements. Design/methodology/approach: To define numerical characteristic of the lumbar spine – transpedicular spine stabilizer system, the finite element method was applied. Geometr...

The power system stabilizer is used to damp out the low frequency oscillations that improve the small signal stability of the power system. If ignored these low frequency oscillations may lead to cascaded failure of the complete power system. This paper presents the comparative study of conventional power system stabilizer (CPSS) with newly proposed Adaptive Fuzzy Logic Controlled Power System ...

To obtain a stabilizer for an underactuated surface vessel with disturbances, L2-gain design is proposed. Surge, sway, and yaw motions are considered in the dynamics of ship. ob-tain robust adaptive controller, diffeomorphism transformation Lyapunov function employed controller design. Two auxiliary controllers introduced equivalent sys-tem after transformation. Different from commonly used dis...

This paper investigates the relation between linear codes and the stabilizer in GL2(C) of their weight enumerators. We prove a result on the finiteness of stabilizers and give a complete classification of linear codes with infinite stabilizer in the non-binary case. We present an efficient algorithm to compute explicitly the stabilizer of weight enumerators and we apply it to the family of Reed...

We present a new approach to simulate arbitrary quantum circuits on a classical computer. Our technique generalizes the stabilizer formalism, the underpinnings of the Gottesman-Knill theorem, to include arbitrary states and arbitrary quantum operations. The core of our approach is a novel state representation combining the density matrix and stabilizer representations. Obviously, not all simula...