Iron ore concentrate obtained by wet magnetic separation (MMC) usually contains 8-10% moisture. Such humidity negatively affects the final properties of the concentrate: it is a ballast during transportation, and in winter it freezes the concentrate into a solid monolith, making it difficult for the consumer to unload it. To solve the problem of reducing the moisture content of commercial iron ore concentrate and preventing its freezing, the Abagura branch of JSC Evrazruda has been operating since 2008. The project "Obtaining a new marketable product" (the so–called prophylactic concentrate) is being implemented by introducing limestone fired on an agglomeration machine into the MMC concentrate. During prophylaxis, water is adsorbed on the lime surface, this process is widely used in industry when drying fine-dispersed materials. This method of concentrate fluxing directly at the processing plant facilitates its transportation and unloading from railway wagons in winter conditions, improves its technological characteristics.

Aluminum alloys are widely used in various industries as a material for machine parts and mechanisms for various purposes, from household appliances to aircraft. However, many machines and mechanisms are subject to significant loads: impact, cyclic temperature changes, vibration, etc. Considering the above, a comprehensive study of the properties of these alloys is necessary when designing parts and mechanisms.

Various branches of modern mechanical engineering, such as aerospace, shipbuilding, and others, require the use of metals and alloys with a high range of physical, mechanical, and technological properties. These materials can be obtained using modern technological processes of melting and casting, both for shaped and blanking.

Optimization of the number of employees of coal companies has made the problem of employment of mining engineers of recent years of graduation very urgent. Among the newly formed requirements that are currently presented to young specialists, the following stand out: competence, responsibility, ability to work effectively in the specialty, readiness for constant professional growth, social mobility, etc. The issue of training creative workers capable of generating ideas is acute. This is confirmed by the experience of research conducted in large mining holdings. For example, in JSC Raspadskaya Coal Company, representing the Coal Division, measures are being taken to activate the rationalization abilities of its personnel to solve problems of any complexity, taking into account the specifics of the available resources of its enterprises. The following methods of selection, training, education and organization of talented and creative researchers are used: competitions of rationalization ideas, schools for young specialists, technical forums, theories of inventive problem solving (TRIZ), conferences.

At the current level of mining intensification, various geomechanical and gas-dynamic processes occur in the massif with uneven movement of the treatment face, which have a significant impact on the gas situation of the coal mine excavation site. As a result of the impact of rock pressure on the rocks of the roof and the soil of the formation, these processes often lead to dangerous phenomena (rock impacts, collapses, sudden emissions, etc.). When the roof rocks hang in the domes of the collapse zone, sufficiently large volumes of the gas mixture can accumulate. In the future, when the stress-strain state of the array changes, the accumulated gas can be squeezed out into the bottomhole space with maximum intensity. Such incidents often lead to gas contamination of existing workings, shutdowns of mining equipment, etc.To prevent the occurrence of accidents and, consequently, to increase the safety of mining operations in high-gas-bearing formations, it is an urgent task to forecast the geomechanical and gas-dynamic conditions during cleaning operations.

The constant increase in the length of supported development mine workings in difficult mining and geological conditions significantly worsens their condition. The failure of the anchor support occurs mainly in workings exposed to the influence of mining operations. Signs of dangerous deformations of the anchor support of mine workings include: breaks and sagging of the lattice or mesh metal tightening between the catches; deformation of the washers at the anchors with a break in their holes; loose or deformed nuts on the anchors; lack of contact of the catches with the roof rocks or coal in the sides of the working, etc.

At present, in coal mines, with a high speed of advancement of long working faces, problems of ensuring the safety of mining operations arise due to the rapidly changing geomechanical situation. In the case of pillar mining, the growth of the load on the working faces is restrained by the unsatisfactory condition of the workings, which are protected by coal pillars, the condition of intersections, junctions, and also auxiliary inclined workings within the limits of the working pillar.

The mechanical equipment of such technological lines as the continuous casting machine of blanks (TL MNLZ) experiences intense both thermal and energy-force effects during casting of liquid metal into blanks, as a result of which it very quickly loses its operability. This leads to premature failure of some parts and components of the equipment and, in addition to frequent scheduled stops, also to emergency stops of the entire production line. The continuous casting machine implements a continuous casting process of liquid metal, in which prolonged, unforeseen downtime is simply unacceptable. Hence, it is very important to know not only the operational reliability indicators of the MNLZ equipment, but also how well the equipment is adapted for its restoration operations. The present work is aimed at assessing the maintainability of technological units of the continuous line of the MNLZ in terms of the time parameters of its restoration.

“Happiness” at work. After having been launched in 2000 by Google this term has by now acquired a large popularity , though it is as a matter of fact erroneous. One should rather use the vocable « satisfaction », knowing that satisfaction is the result of an effort. The consequence of true satisfaction is interest and as a consequence true efficiency in work. Experiments show that children at liberty to choose their own learning process develop more quickly and will learn better than those who are burdened with a predetermined learning rhythm. Such an experiment recently conducted in France (Jean-Lurçat nursery school in Gennevilliers, 2011-2014) by Céline Alvarez is totally probant “My objective, explained Mrs Alvarez, was to propose an environment based on the great principles of blooming human being, thanks to the contribution of the neurosciences and work of Maria Montessori. ” Why should not the same approach be effective  in  organizations ? 

In gradu cognitionis physicae vel biologicae, obiectum studiorum physicum vel biologicum semper est complexus elementorum differentiatorum, quorum unumquodque satis differentiatis functionibus insignitur. Cum systemata scholastica integralia perscrutatur, munus cognitionis talium rerum est cognoscere leges commercii elementorum suorum ad explicandam naturam psychologicam et paedagogicam integritatis ipsorum obiectorum et consequenter earum proprietates.

The quality and effectiveness of student learning are largely determined by the level of interactivity of teaching methods and technologies. In the middle of the last century, the Austrian biologist Ludwig von Bertalanffy formulated the main provisions of a generalized systemic concept called “General Systems Theory”. In it, the author, in particular, identified three levels of interactivity of interaction between subjects of activity. In accordance with this theory, in modern pedagogy, teaching methods and technologies can be identified that are oriented toward one or another level of interactivity of subjects: zero, first, and second.

Миграция на территорию Российской Федерации и, в частности, Западно-Сибирского региона является частью глобальных миграционных процессов, которым свойственен вектор движения, направленный с юга на север. Миграционные потоки оказывают неоднозначное влияние на демографическую, социально-экономическую и политическую ситуацию в государстве. Превращение человеческих ресурсов в ключевой источник социально-экономического развития  или торможения модернизации регионов, стран усиливает значимость изучения миграционных проблем.