The system of electric brain activity acquisition from EEG equipment for Linux OS

The idea of electric brain activity acquisition for LINUX OS is presented. So far the only available software has been that for MS-Windows. The general concept of the modular data acquisition system as independent of its particular parts as possible and based on the LINUX pipe system will be discussed to some extent. Adapting the hardware to open source technology will allow us to design new methods of brain electrical dynamic analysis.

Developing brain electric activity acquisition software for Linux

This article discusses the first successful phase of our work on the construction of a complete modular research station for EEG signal acquisition and analysis performed in real-time mode and in a way that meets our needs. Our intentions were presented in [1]

Synchronous SSVEP Data Acquisition System

Steady State Visually Evoked Potentials have been known for several decades and theyappear in the primary visual cortex of brain as a result of light stimulation of the sense of sight. Inthis article a simple method for electroencephalographic data acquisition is presented. The system isbased on the DSM-51 unit connected to goggles with blinking diodes and Mindset-1000 EEG amplifierwith 16 channels. We present self-developed hardware and method of effective synchronization for thelight stimulation and brain activity recording

Research of the spectral diffuse reflectance of melanoma in vivo

The structure and principle of operation of information-measuring system of diagnostics of normal and pathological biological tissues from the spectrum of diffuse reflection. Research of spectrum of diffuse reflection of patients with melanoma and comparison of characteristics of normal skin relatively healthy recipient. The measurement results can be used by an expert system based on fuzzy logic for decision support physician about diagnosis and correction methods of treatment

Vibration diagnostic system for evaluation of state interconnected electrical motors mechanical parameters

The paper presents the structural diagram and mathematical model of a vibration diagnostic system to measure angular velocities of two interconnected electric motors. The system is based on vibration signals and the control signals of the motor mechanical parameters. The measurement procedure of the rotor rotational speed is based on vibration signals during synchronization. The procedure presented allows simultaneous measurement and synchronization frequencies of rotation to diagnose of the motors' mechanical parts. The calculated reduced error of synchronizing frequencies of rotation of the rotors, which is 0.45% of the measurement range of frequencies of rotation from 0 to 80Hz.Наведено структурну схему та математичну модель вібро-діагностичної системи для вимірювання кутових швидкостей двох взаємоз'єднаних електродвигунів. Система заснована на вимірюванні вібраційних сигналів та контролі механічних параметрів електродвигунів. Процедура вимірювання частоти обертання ротора базується на сигналах вібрації з подальшою синхронізацією цих частот. Пропонована процедура дозволяє одночасно вимірювати та синхронізувати частоти обертання і одночасно діагностувати стан механічних частин електродвигунів. Розрахункова зведена похибка синхронізації частот обертання роторів становить 0,45% в діапазоні вимірювання частот обертання від 0 до 80 Гц

Long-term survival and residual hazard after in-hospital cardiac arrest

The purpose of this study was to determine long-term survival after in-hospital cardiac arrests and to explore if and when the excess mortality risk imposed by the index event reaches that of an age and sex matched general population.Peer reviewe