Acceptance tests for oxygen cutting machines. Reproducible accuracy. Operational characteristics

1992 ◽  
Keyword(s):  
Operational Characteristics ◽  
Acceptance Tests

OPTIMIZATION OF OPERATIONAL CHARACTERISTICS OF POLYMER-DISPERSED SYSTEMS AIMED AT INCREASING OIL PRODUCTION OF PETROLEUM STRATA

2015 ◽  
Vol 1 (2) ◽  
pp. 68-74
Author(s):  
G. G. PECHERSKY ◽  
◽  
Y. R. KUSKILDINA ◽  
A. V. ANTUSEVA ◽  
M. V. KAZAK ◽  
...  
Keyword(s):  
Oil Production ◽  
Dispersed Systems ◽  
Operational Characteristics ◽  
Polymer Dispersed

Analysis of Characteristics of LED Lamps with T8 Bulb by Various Manufacturers

2019 ◽  
pp. 82-87
Author(s):  
Nina P. Nestyorkina ◽  
Olga Yu. Kovalenko ◽  
Yulia A. Zhuravlyova
Keyword(s):  
Supply Voltage ◽  
Luminous Flux ◽  
Supply Network ◽  
Operational Characteristics ◽  
Nominal Voltage ◽  
Electric Parameters ◽  
The Moment ◽  
Colour Rendering

The article analyses the operational characteristics of 10W LED lamps with T8 bulb manufactured by ASD (Russia), Smartbuy (Taiwan), and VOLPE (PRC) and 18W FL with T8 bulb manufactured by PHILIPS (Poland) including the dependence of these lamps on the supply voltage. The results of measurements show that: a) the period of stabilisation of electric parameters and luminous flux of LED lamps does not cause discomfort of illumination unlike the said FL, the luminous flux of which at the moment of switching on is 70 % of the nominal value, which is reached after 13 minutes; b) with nominal voltage of supply network, the value of luminous flux of 10W ASD LED-T8R-STD LED lamp (Russia) is 6 % less than the declared one, and that of Smartbuy SBL-T8-10-64K-A (Taiwan) and VOLPE LED-T8-10W/DW/G13/FR/FIX/N (PRC) is even less; c) the general colour rendering index of all studied LED lamps is less than the declared one (72 instead of 80); d) the flicker index of all studied LED lamps does not exceed the declared value of 5 %; e) the characteristics of LED lamps almost do not depend on changes of the supply voltage within the range of ±10 %. The recommendations regarding the application of the studied LED lamps are given.

On the issue of the revitalization and modernization of the engineering in Russia

2019 ◽  
pp. 19-24
Author(s):  
A. E. Melnikov
Keyword(s):  
National Economy ◽  
Technological Progress ◽  
Developed Countries ◽  
The State ◽  
Engineering Technology ◽  
Operational Characteristics ◽  
Technical Potential ◽  
Significant Barrier ◽  
The Developed Countries ◽  
Competitive Products

Currently, one of the important tasks of the economic policy of Russia is the formation of a hightech image of the national economy, capable of effective functioning in the changing global geopolitical and geoeconomic conditions. In this context, the issue of revitalization of mechanical engineering, which plays a key role in the development of the country’s economy, is of particular relevance. This sector is a link between scientific and technological progress and the level of provision of domestic producers with domestic machines and equipment, allowing them to produce competitive products and to a lesser extent depend on the state of the external environment. The example of the developed countries of the world shows that the development of advanced engineering technology significantly increases the efficiency of the national economy, helps to accelerate its growth. At the same time, in Russia, in order to unleash the scientific and technical potential and activate engineering, it is necessary to initiate modernization processes in it. Based on the foregoing, the purpose of the study is to analyze the state of Russian engineering from the position of its role in the country’s economy. It is shown that at present a significant barrier to the development of this sector is the predominance of imported equipment, due to technical and operational characteristics, often superior to domestic counterparts.

Sign in / Sign up

Export Citation Format

Share Document