- 1. Study of fragmentation impact of small riverbeds by artificial waters on the quality of water resources
- (Content №3 2022)
- ... that the level of mineralization, the content of sulphates and chlorides exceed the maximum acceptable concentrations in all studied rivers. There is a tendency of deterioration of water quality in the ...
- Created on 29 June 2022
- 2. Increased heavy metal concentrations in the soils near electric power generators in Samarra city (Iraq)
- (Content №3 2022)
- ... the concentration levels of various heavy metals and carbon in the soils of four Samarra City areas that are close to pollution sources (electric power generators). Methodology. A pollution source is sampled ...
- Created on 29 June 2022
- 3. Impact of stress concentration on reliability of metal structure elements of gantry cranes
- (Content №3 2022)
- ... crane taking into account coefficients of intensity and concentration of stresses which allow defining speed of growth of cracks in dangerous stress zones of a metal structure. Originality. The existing ...
- Created on 29 June 2022
- 4. A new method of disposal of concentrated solutions by crystallization of their components
- (Content №3 2022)
- ... The necessary equipment in the simplest case is a cloth, fixed vertically and immersed in the lower end of the concentrate. Tap water and NaCl solutions with a concentration of 100 g/dm3 were used as model ...
- Created on 29 June 2022
- 5. Complex measurement of parameters of iron ore magnetic separation based on ultrasonic methods
- (Content №3 2022)
- ... Abstract: Purpose. To develop a method for complex ultrasonic measurement of such parameters of the iron ore slurry flow passing through the working chamber of the magnetic separator as efficiency, concentration ...
- Created on 29 June 2022
- 6. Research on chemical composition of secondary copper anodes obtained from aqueous residues of refining process
- (Content №2 2022)
- ... of the study, are obtained from a secondary multicomponent product, composed of certain concentration of soluble and insoluble metals, and other various components. Methodology. To examine the chemical ...
- Created on 30 April 2022
- 7. Research into heap leaching technology of gold-bearing ores at the Vasilkovsky gold ore deposit (Kazakhstan)
- (Content №2 2022)
- ... Abisheva, Z.S. (2021). Study of gravity-flotation concentration of lead-zinc ore at the Shalkiya deposit. Obogashchenie Rud, (6), 9-15. 18. Begalinov, A., Shautenov, M., Almenov, T., Bektur, B., & ...
- Created on 30 April 2022
- 8. Petrographic composition and ore potential of low-temperature metasomatites of the Middle-Dniprean mega-block of the Ukrainian Shield
- (Content №1 2022)
- ... the intersection of deep faults is characterized. The metallogenic specialization of low-temperature metasomatic formations is determined and the process of formation of ore concentrations of complex composition ...
- Created on 25 February 2022
- 9. Improvement of environmental conditions by applying heat recovery technologies of boiler plants
- (Content №6 2021)
- ... concentration of nitrogen oxides and carbon monoxide emissions was determined when using these methods. A comparative analysis of the effectiveness of the proposed methods for brick and metal chimneys ...
- Created on 29 December 2021
- 10. Assessment of heavy metal pollution of sedimentation in the Sitnica river based on pollution indicators
- (Content №6 2021)
- ... coupled plasma optical emission spectrometry (ICP-OES). Analytical methods were used to calculate pollution indicators. Findings. From the obtained results it can be concluded that the concentrations of ...
- Created on 29 December 2021
- 11. Co-firing of gas coal dust fine particles and synthetic peat gas. Part 1. Simulation of processes of steam-air gasification of peat in a fixed bed and combustion of dust and gas mix in a stream
- (Content №6 2021)
- ... developed, which differs from the existing models by taking into account the particle velocity and its change. With the aid of this model the detailed information on temperature and concentration fields ...
- Created on 29 December 2021
- 12. Simulation of amber extraction processes from sandy and clay rocks with stope filling
- (Content №6 2021)
- ... Naftni Zbornik, 34(1), 83-91. https://doi.org/10.17794/rgn.2019.1.8. 10. Telkov, S.A., Motovilov, I.Y., Barmenshinova, M.B., Medyanik,N.L., & Daruesh, G.S. (2019). Substantiation of Gravity Concentration ...
- Created on 29 December 2021
- 13. Choosing injectable solution for auger technology of underground space protection against pollution
- (Content №5 2021)
- ... regularities of changes in water absorption and time of plastic strength setting when varying the composition of the anti-filtration shield (concentration of fiber, bentonite, water glass); development ...
- Created on 29 October 2021
- 14. Current state and forecast of sulfur dioxide and dust emissions at thermal power plants of Ukraine
- (Content №5 2021)
- ... 8. Volchyn, I.A., & Haponych, L.S. (2014). Estimate of the sulfur dioxide concentration at thermal power plants fired by Donetsk coal. Power Technology and Engineering, 3(48), 218-221. https://doi.org/10.1007/s10749-014-0511-0. ...
- Created on 29 October 2021
- 15. Determination of adhesion stages of the Fe-Ni ore at the Ferronikeli plant in Drenas
- (Content №5 2021)
- ... of high metal concentration zones in man-made deposits. Mining of Mineral Deposits, 12(2), 76-84. https://doi.org/10.15407/mining12.02.076. 8. Strezov, V., Evans, A., & Evans, T. (2013). Defining sustainability ...
- Created on 29 October 2021
- 16. Tectonic factors of impurity elements accumulation at the Shubarkol coal deposit (Kazakhstan)
- (Content №5 2021)
- ... rocks enriched with impurity elements and the conditions needed for its leaching and transportation to the coal seam were analyzed. It was found that the coals in individual samples have average concentrations ...
- Created on 29 October 2021
- 17. Research into ecological status and the degree of heavy metal concentration in the waters of the Drenica river (Kosovo)
- (Content №4 2021)
- ... Drenica River surface water. The EPA-3015A method was applied for sample preparation, while the AAS (Atomic Absorption Spectrophotometry) measurement technique was used to determine the concentration of ...
- Created on 23 August 2021
- 18. Substantiating rational schedule to load trucks using draglines while mining a pit of Motronivskyi MPP
- (Content №4 2021)
- ... in the context of the pit. Methodology. Mathematical and graphical modeling was involved while determining a coefficient of mining concentration in the pit as well as feasibility analysis to select a rational ...
- Created on 23 August 2021
- 19. Determination of stress concentration near the holes under dynamic loadings
- (Content №3 2021)
- ... stresses at the initial time is improved; the remainder is taken into account in the conversion formula. Practical value. A method has been developed for calculating the stress concentration at holes of ...
- Created on 23 June 2021
- 20. Increasing gold leaching efficiency with change of solution rheological properties
- (Content №3 2021)
- ... technology), and then the solution activation was applied. The ore amount in the stockpile was 600 kg; the gold content in the ore is 1.12 g/t. At the same time, the concentration of cyanide was 400 ppm. ...
- Created on 23 June 2021