The main geological factors influencing on formation of indices of coal quality (on the example of the coal deposit "Neryungrinskoye")

Genetic and epigenetic factors influencing on formation of a coal bed (its characteristics expressing by means of morphology, petrographic composition, degree of reducing, metamorphism, oxidation, and dislocation, physical properties and indices of coal quality) are considered. The main task of this research consisted in establishing of the significant factors influencing of the coal bed quality indices to a greater extent. Solution of the set task from positions of a system approach at study of rock massifs consisting in revealing and studying of many interconnected elements and estimation of their influence by means of alternate normalization of the main bounds is shown. The study was carry out in conditions of the bed «Moshny» of the coal deposit «Neryngrinskoye» of the Southern-Yakutia basin. The experimental data were treated with use of the correlation-regression methods. Results of researches allow to use geological information and geophysical methods for operative planning of geologic prospecting process and mining works in more total way

Joining hard and soft plastics with a diode laser

Soft thermoplastic elastomers and hard thermoplastics can now be flexibly joined by a diode laser, irrespective of joint geometry. This development opens up a wide range of applications, particularly in the automotive industry