ANALYSIS OF THE INTEGRATED TECHNOLOGY OF HIGH-PERFORMANCE MINING OF STOCKS OF EXCAVATION SITES OF COAL MINES

Ugol ◽  
2019 ◽  
pp. 40-45 ◽  
Author(s):  
N.I. Abramkin ◽  
◽  
A.V. Dorodniy ◽  
I.U. Buharbaev ◽  
◽  
...  
Author(s):  
Leonid Aleksandrovich Plaschansky ◽  
Sergey Nikolaevich Reshetnyak ◽  
Maria Yuryevna Reshetnyak

2013 ◽  
Vol 562-565 ◽  
pp. 1387-1392
Author(s):  
Zhao Yun Zhang ◽  
Zhi Gui Shi ◽  
Zhen Chuan Yang ◽  
Bo Peng

The monolithic integrated technology of MEMS was discussed. First discussed the advantages and difficulties faced by the MEMS monolithic integration technology. Second the features and the process of the mainstream MEMS monolithic integration technology was introduced. And finally put forward a SOI MEMS monolithic integration technology, the technology with no high-temperature process, Post-CMOS integrated solution, compatible with the CMOS process. This technology can achieve high aspect ratio, high-performance micro-inertial devices..


2013 ◽  
Author(s):  
Christophe Bonneville ◽  
Fabrice Thomas ◽  
Mikhael de Mengin Poirier ◽  
Etienne Le Coarer ◽  
Pierre Benech ◽  
...  

Author(s):  
Victor N. Kovalev ◽  
Svetlana K. Ryabinina ◽  
Mikhail D. Kudryavtsev ◽  
Sergey L. Sadyrin

The article analyzes student sport, which is a reserve of high-performance sport, on the one hand, and a powerful factor in health preservation and socialization of future specialists and active members of society, on the other hand. The article discusses sports selection and orientation in the context of sportization of orientation of university physical education towards preservation of students’ health, creation of health-forming educational space to ensure the development of health-forming values that result in the improvement of students’ health and physical condition. The aim of the study is to develop, apply and evaluate the effectiveness of the integrated technology of students’ sports selection and orientation towards university physical education specializations tailored to students’ individual characteristics. The general scientific research methodology is presented by a systematic approach to determining a person’s individual characteristics in the unity and interrelation of biological, social and psychological components, their influence on choice and success in certain activities, and their impact on health. Methods of scientific analysis, observation, experiment, empirical methods of psychological diagnostics, psychophysiological methods, statistical and mathematical methods were used. The study was conducted from January, 2016 to September, 2020. It involved 327 people: athletes from the DYUSSHOR (children and youth sports school of the Olympic reserve) of the Krasnoyarsk Krai, adult athletes, and the 1st, 2nd and 3rd year students of the schools of Siberian Federal University from educational specializations in basketball, aerobics, and rock climbing. The proposed methods of selection and orientation towards specializations in physical education can be applied in universities regarding the practice of student sport as a reserve of high-performance sport and mass student sport. The proposed methods of orientation of students towards physical education specializations tailored to their individual characteristics can be applied in the system of higher physical education and in physical education classes at universities. When assessing the conformity of the athlete’s data to the chosen sport, which is a mathematical algorithm for assessing the conformity of professionally significant qualities to those required in the chosen sport, the obtained data on the athletes’ conformity ranged from 70% to 93%. These data confirm the previously obtained data on the prevailing tendencies in the severity of the typological characteristics of the nervous system properties in athletes doing different sports, as well as the correspondence of the typological complex of the nervous system of those under the study with the athletes’ morphological and functional characteristics required in elite sports. As a result of the study, the established correspondence of these students to the chosen specializations ranges from 48% (rock climbing, 1st year female students) to 87% (female students, basketball). The following motives can be considered the most significant for the group of students under the study: health preservation, social sphere, and physical perfection. The use of modern methods of orientation and selection in the context of the sportization of physical education will contribute to solving the problems that the staff of the Department of Physical Education face in helping the students to choose the type of physical activity (the student’s orientation towards mass student sport, health-improving physical education), as well as a specific sport


2020 ◽  
pp. 19-23
Author(s):  
O. I. Kazanin ◽  
◽  
A. A. Sidorenko ◽  
S. A. Sidorenko ◽  
A. A. Meshkov ◽  
...  

The authors point at the criticality of timely reproduction of longwall panels in coal mines toward sustainable and high-rate coal mining based on the utilization potential of modern longwall equipment. A case-study of SUEK-Kuzbass mines shows that there is a need to change approaches to improvement of economic efficiency and competitiveness of coal mining and to shift from the common practice of production cost reduction to productivity enhancement through implementation of high-performance equipment capabilities. Efficiency of road heading in mines of SUEK-Kuzbass is analyzed, and the main causes of long downtime in operation of modern high-performance continuous miners (CM) or continuous bolter miners (CBM) are identified. Recommendations have been developed for improved planning of preparatory works in mines and for introduction of significant action time margin to eliminate downtime when actual drivage performance lags behind the planning data. The action time structure of modern CBM is presented, and recommendations are given on CBM efficiency evaluation as actual action time in cutting road face rocks. The application areas of various modern CBM types are justified. Recommendations are proposed for changing the parameters of longwall panels and to change to multi-entry longwall panels in order to increase efficiency of preparatory works and actual coal production. The authors describe expediency of widespread use of shuttle cars to improve efficiency of haulage of rocks and materials. The organizational and technological principles of the efficiency increase in preparatory works in coal mines are substantiated.


Sign in / Sign up

Export Citation Format

Share Document