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Mining, due to its intensive economic operation, is primarily associated with negative impact on natural environment and destruction of natural assets, and that regardless of the method of raw materials extraction. So, the great challenge now is to restore natural balance to areas affected by the consequences of this operation. Literature on the subject features a lot of publications on recultivation, understood as reintroduction of forests, meadows, arable land and water courses into degraded former mining areas ...

Heavy crude oils are extracted mostly by thermal recovery methods which reduce viscosity of heavy oil due to destruction of associative bonds in a complex oil fluid. In a number of articles, it is proved that at a temperature of more than 200-250В° C there is also a certain chemical transformation of hydrocarbons, primarily containing hetero-elements. The use of finely-dispersed catalysts, injected directly into the oil-bearing formation, allows to intensify the processes of destructive hydrogenation of asphaltene...

The company "Skripinsky Quarry", LLC is mining the carbonate rock deposit. Planning the advanced processing of raw materials, the company is doing a lot of work to develop new types of products. The integrated approach to the territory development became the key for the enterprise developing the promising industrial projects. The competition of project proposals for the best use of Skripinsky quarry crushed stone screenings was organized together with D. Mendeleev University of Chemical Technology of Russia. The w...

The underground mining of a deposit leads inevitably to the deformation of the surface as well as to the destruction of the buildings located in the area of influence of the extraction. Therefore, the rocks surrounding the excavation, created by the extraction process, go from the initial equilibrium state of tensions (triaxial) to a biaxial or even uniaxial stress state. This secondary state of tension leads to the occurrence of rock breaking phenomena in the areas where their resistance are exceeded, respectivel...

In 2017 for the first time in Kazakhstan we gave several lessons at the Abai Kazakh National Pedagogical University (KazNPU) in Almaty, through the instrumentality of the ?flipped classroom? method within the frame of the following disciplines: ?The theory of evolution? for undergraduate students and ?A modern human physiology? for graduate students. In accordance with the requirements of employed method, teaching and learning process was built in such a manner. Teachers provided to the students educational materi...

The aim of this study is to validate the possibility of using the 100 Megapixels Hasselblad Hd-6 middle format camera and Agisoft PhotoScan in the Cultural Heritage documentation. The subject of this investigations is the fresco decoration in one of the rooms in the Bieli?ski Palace in Otwock Wielki, near Warsaw (Poland). The frescos cover the walls of a room of 11,5 ? 5,5 m in one of the wings of the palace. The results of the data analysis convincingly show that a higher resolution can be obtained using a Hassel...

Accessibility to urban facilities and public services is nowadays one of the key factors that impacts the quality of urban live. That being said, accessibility is a complex concept, which although in common use, has a range of meanings, and measuring it raises numerous methodological problems. For instance, accessibility is closely related to the concept of distance, but as a society evolves, other factors such as travel time, economic cost, different transport options, interest or attraction of the destination co...

In this study, we collected data from nine domestic Irish bank web sites and nine domestic Finnish bank web sites. Both countries have many similarities in political, demographical, financial and economical areas. Each of the selected banks represent a typical domestic bank, which is under the control of the respective national central bank. The results of the study could be used as a guide for good and bad practices because of highly qualified personnel employment in the credit institutions, decisions are based u...

The implementation of underground coal gasification (UCG) on an industrial scale requires solving many problems. One of them is the optimization of chemical processes during gasification, such as pyrolysis, in order to obtain a syngas with the desired parameters. The process of devolatilization a coal seam in underground conditions is complex, moreover, many issues are not fully understood. Due to the limited possibilities of experimental research, simulation research is extremely helpful in understanding the deta...

In this paper, a computational method to predict the corrosion resistance of some ironbased powder metallurgy (P/M) materials is proposed. The samples prepared from atomized iron powder and pre-alloyed iron base powders powders were the materials analyzed in this paper. The compacted samples were obtained by powder metallurgy process, respectively pressing and sintering of the mixed powders. The samples were compacted at a pressures of 400 and 600 MPa. The sintering temperature was approximately 1.150 В°C. The inf...