Results 11 to 20 of about 601,557 (262)

Development of the technical solution to prevent a single-rotor helicopter from entering uncontrolled rotation

open access: yesНаучный вестник МГТУ ГА, 2022
The phenomenon of a single-rotor helicopter entering an unintended left rotation with the further development of an uncontrolled turn periodically arises while operating this type of helicopter, both in Russia and abroad.
V. A. Ivchin   +3 more
doaj   +1 more source

Rail skates for fixing rolling stock on the station tracks. Ground tests

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2016
Currently manual brake shoes on Russian railways are used to solve two main tasks: to adjust uncoupling speed at humps (hump shoes), and to fix the rolling stock on the railway tracks.
D. P. Markov   +7 more
doaj   +1 more source

Vibrio coralliilyticus as an agent of red spotting disease in the sea urchin Strongylocentrotus intermedius

open access: yesAquaculture Reports, 2020
The bacterium, Vibrio coralliilyticus, is well known as one of the main pathogens involved in coral bleaching; however, there have been no previous reports of this bacterium in sea urchins.
Ruijun Li   +6 more
doaj   +1 more source

Blind source extraction based on EMD and temporal correlation for rolling element bearing fault diagnosis [PDF]

open access: yesSmart and Resilient Transportation, 2021
Purpose – Fault diagnosis methods based on blind source separation (BSS) for rolling element bearings are necessary tools to prevent any unexpected accidents.
Xuejun Zhao   +4 more
doaj   +1 more source

DEVELOPMENT OF EYE-TRACKING BASED SYSTEMS FOR ALTERNATIVE AND AUGMENTATIVE COMMUNICATION

open access: yesНаука и инновации в медицине, 2016
Rehabilitation of people with communication impairments is a socially important issue in Russia. Currently, there are no high-tech alternative and augmentative communication devices on the Russian market.
D A Balovnev, G G Znayko
doaj   +1 more source

Autodyne Sensor Signals with Amplitude-Frequency Modulation of Radiation

open access: yesSensors, 2020
A mathematical model of an autodyne oscillator with a combined amplitude-frequency modulation, which is under the influence of its own radiation reflected from the target, is developed.
Vladislav Noskov   +4 more
doaj   +1 more source

Internal control in the stock market [PDF]

open access: yesالرافدین للحقوق, 2021
Markets are deemed to be one of the most important financial institutions of any state due to the varied investment services they provide concerning securities and the great activity exerted by companies in supporting economics and investment through ...
manhl kalander
doaj   +1 more source

Stock control methods in operation room: ABC, VED ve ABC-VED matrix analysis

open access: yesSağlık ve Hemşirelik Yönetimi Dergisi, 2019
INTRODUCTION: Operating room nurse manager needs to have the materials, tools and equipments reliably at the right time, in the right place and in the correct amount so that every operation can be done safely, effectively and economically.
Ayla Tisinli, Okan Savaş
doaj   +1 more source

Modeling and Dynamic Characteristics Analysis of Blade-Disk Dual-Rotor System

open access: yesComplexity, 2020
In this paper, a simplified dynamic model of a dual-rotor system coupled with blade disk is built, and the effects of blade parameters of an aircraft engine on the dynamic characteristics of a dual-rotor system are studied.
Zhenyong Lu   +5 more
doaj   +1 more source

Management of Hardware Vulnerabilities in the Life Cycle Stages of Microprocessors and Computers

open access: yesInventions, 2023
This article discusses the topical issues of managing information security vulnerabilities in the life cycle stages of processors and computer equipment.
Ignat Bychkov   +4 more
doaj   +1 more source

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