Keyword: «speed»

The combined stand for laboratory works on hydraulics

ART 1244

Authors:

Igor Krasnokuskiy,

Mihail Rabinovich

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Need and efficiency of the compact universal stand for carrying out physical experiment by students locates at hydraulics and hydromechanics studying. The design of the stand and feature of its application in educational process is described

Keywords: liquid, speed, a volume expense, a pressure, pressure losses, bernullis equation, the expiration from openings and nozzles, the pump

DYNAMIC CHARACTERISTICS OF PARASITIC ANGULAR MODULATION COMPENSATION CHANNELS OF THE FREQUENCY SYNTHESIZER FOR AVIATION MEANS OF RADIO COMMUNICATION

Authors:

Andrei Lenshin,

Aleksei Myshin

Analytical expressions are obtained for the transient characteristics of the parasitic angular modulation (PАM) autocompensation channels of frequency synthesizers (FS) and partial dynamic characteristics are calculated. The dynamic characteristics of the PАM compensation channels were evaluated when the parameters of the MF nodes for aviation radio communications were changed

Keywords: speed, frequency synthesizer, parasitic frequency modulation, parasitic phase modulation, dynamic response

DEVELOPMENT OF SHORT-DISTANCE RUNNING SPEED IN SCHOOLCHILDREN AGED 14–15

Authors:

Alsy Saitova,

Zoya Kolicheva

This article is devoted to the development of speed abilities in schoolchildren aged 14–15 years in athletics lessons. Athletics is an integral part of the educational process of schoolchildren. Often, basic exercises are not enough to qualitatively develop speed abilities. That is why the author, after analyzing the scientific literature, proposed a methodology with a set of exercises that favorably affect the improvement of speed indica-tors. The conducted pedagogical experiment helped to prove the effectiveness of the pro-posed complex.

Keywords: speed, a set of exercises, physical qualities, athletics, running, methods of developing physical qualities