The influence of impacted wisdom teeth on the strength of the bone tissue in the angle of the lower jaw

Study the effect of impaction of the lower third molars on the strength of the bone tissue of the lower jaw in the area of its angl

A Single-Loop DC Motor Control System Design with a Desired Aperiodic Degree of Stability

The application of the original analytical approach for Pi-controller synthesis of a stable second-order plant is considered. This approach allows finding controller parameters without any intensive computing by using the direct expressions. The plant model is obtained on the basis of identification, which is based on the automated real-interpolation method. The results of natural experiments are given

Выбор и анализ структуры пользовательского радиоинтерфейса локальной системы позиционирования

Building of user interface of the local positioning system is considered. It is shown that to achieve centimeter positioning accuracy the application of ultra-wideband signal technology with separate transmission of data message is required.Рассмотрено построение пользовательского радиоинтерфейса локальной системы позиционирования. Показано, что для обеспечения сантиметровой точности позиционирования необходимо применение технологии сверхширокополосных сигналов с отдельной передачей информационного сообщения

Selection and Analysis of Interface User Structure of the Local Positioning System

Building of user interface of the local positioning system is considered. It is shown that to achieve centimeter positioning accuracy the application of ultra-wideband signal technology with separate transmission of data message is required

STARS IDENTIFICATION AT THE ASTRONOMICAL COORDINATES DETERMINATION BY MEANS OF AN AUTOMATED ZENITH TELESCOPE

Scope of research. The paper deals with two approaches to the stars identification: an algorithm of similar triangles and an algorithm of interstellar angular distances. Method. Comparative analysis of the considered algorithms is performed using experimental data obtained by the prototype of zenith telescope as applied to the problem of coordinates determination by automated zenith telescope. Main results. The analysis has revealed that identification method based on the interstellar angular distances provides star identification with higher reliability and several times faster than the algorithm of similar triangles. However, the algorithm of interstellar angular distances is sensitive to the lens focal length, so a combined stars identification method is proposed. The idea of this method is to integrate the two above algorithms in order to calculate the lens focal length and to identify directly the stars. Practical significance. The combined method gives the possibility for valid identification of the stars visible in the field of view with comparatively short processing time whether the lens focal length is available or not