98 research outputs found

    Definite oeculiarities of toxic and potentially toxic elements distribution in coal seams of Pavlograd-Petropavlovka region

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    Викладені методики та результати визначення складу геохімічних тапарагенетичних асоціацій токсичних елементів в основних робочих пластах Павлоград Петропавлівського району Західного Донбасу, факторного та кластерного аналізу їх вмістів.Изложены методики и результаты определения состава геохимических и парагенетических ассоциаций токсичных элементов в основных рабочих угольных пластах Павлоград-Петропавловского района Западного Донбасса, факторного и кластерного анализа их содержаний.Procedures and results to determine composition of toxic element geochemical and paragenetic assemblages within mother working coal seams of Pavlograd-Petropavlovka district in Western Donbass as well as their factor and cluster analysis are represented

    Solar activity beyond the disk and variations of the cosmic ray gradient

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    Part of galactic cosmic rays (CR) observed near the Earth and on the Earth come from beyond-disk regions of circumsolar space. But CR of those energies which undergo substantial modulation cover too large a path across the lines of force of the interplanetary magnetic field (IMF) in order that they could provide an effective transfer of information about beyond-disk solar activity. And if it is still possible, the most probable channel for transferring such information must be a neutral layer of heliomagnetosphere in which the transverse CR transport is facilitated by their drift in an inhomogeneous magnetic field. A simple diffusion model for an expected CR variation in a neutral layer near the Earth is discussed. It is of importance that variations of the CR gradient are not at all always accompanied by considerable variations of IMF and solar wind velocity at the point of observation

    Ground increase of cosmic ray intensity on February 16, 1984

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    The event of February 16, 1984 is one of the two largest ground increases of solar cosmic rays (CR) in the last two cycles of solar activity. This event happended at a decrease of the 21-st cycle against a quiet background. Although at the beginning of 1984 the observed indices of solar activity were higher than those at the end of 1983, the day of February 16 16 may be characterized as very quiet. On that day the geomagnetic perturbance (Sigma F sub p = 14, A sub p = 7) was the lowest in February. After a small Forbush decrease due to the magnetic storm of February 12-13, the CR intensity almost completely recovered by February 16. Thus, the solar particles that came to the Earth on February 16 got into a practically unperturbed magnetosphere, and the variations of secondary CR induced by these particles were not superimposed on any other substantial variations of extraterrestrial or magnetospheric origin

    NICKEL IN THE OILS OF THE DNIPRO-DONETSK BASIN OF UKRAINE

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    To research geochemical features of nickel in oils of existing deposits of the Dnipro-Donetsk basin and creation of their classification according to the content of this metal

    GERMANIUM IN C6 COAL SEAM OF DNIPROVSKA MINE OF WESTERN DONBAS OF UKRAINE

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    To research and find the most effective method of creating objective typification of sections of the coal seam c 6 of the Dniprovska mine field of different thickness according to germanium concentrations, based on the analysis of the clustering results

    Морфологія органомінеральних утворень нирок мешканців Дніпропетровщини

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    The article presents the results of morphology research of the organomineral formations of the residents of Dnipropetrovsk region and proposes the typification of uroliths according to the peculiarities of their morphology.В статті наведено результати досліджень морфології органомінеральних утворень мешканців Дніпропетровщини й запропонована типізація уролітів за особливостями їх морфології.В статье результаты исследований морфологии органоминеральных образований жителей Днепропетровщины и предложена типизация уролитов по особенностям их морфологии

    Features of vanadium geochemistry in oils from the oil and gas fields of Eastern region of Ukraine

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    The results of long-term studies of the geochemical features of vanadium in the oil from 36 deposits of the Eastern oil and gas region of Ukraine. Based on the results of correlation and regression analyses, the nature and forms of the relationship between the vanadium content in oil and nickel, zinc, chromium, manganese, cobalt, iron, mercury, aluminum and the total content of these metals were determined; average capacity of the productive horizon; oil density value; oil viscosity value; resin content; the density of formation water from the productive horizon; sulfur content in oil; actual depth of the productive horizon; actual temperature of the productive horizon; actual pressure of the productive horizon; oil boiling point; paraffin content; the value of mineralization for formation water from the productive horizon; content of asphaltenes. Correlation coefficients, pairwise linear regression equations as well as curves that illustrate relationships between these parameters are obtained. Based on the results of the cluster analysis, a dendrogram of the results for clustering by means of the weighted centroid method of the considered fields by the content of vanadium in the oils was elaborated. Based on the results of clustering by means of the weighted centroid method, the first natural classification of oil and gas fields of eastern region of Ukraine according to the content of vanadium in oils was developed. It has been proven that heteroatomic low-molecular sulfur-containing components of the petroleum system are the main concentrators of vanadium in the oil for the studied deposits. It has been shown that, based on the results of the cluster analysis, sample average values of vanadium concentrations that vary significantly between individual deposits or groups of deposits for established ranges could be interpreted in terms of qualitative assessment as follows: abnormally low; low; below average; average; above average; high; abnormally high. The implementation of this kind of approach makes it possible to visually compare and interpret in terms of geology various scale and various indicators of oil deposits obtained by means of experimental study

    Features of the structure of urate urolithiasis in inhabitants of an industrially developed region

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    According to the World Health Organization, the incidence of this disease has increased 1.5 times over the past 12 years. It affects one person in a hundred in the world. For many centuries, information about the symptoms of the disease and methods of its treatment has been accumulated, many issues of mineralogy, in particular, the ontogeny of uroliths, remain insufficiently studied. Minerals of biogenic origin are integral elements of the structure of many living organisms. Along with genetically physiogenic minerals, pathogenic biominerals are also common. These include, in particular, urinary stones — uroliths, which are formed as a result of the development of urolithiasis. Urolithiasis is called the "disease of civilization" for a reason. Today, the ontogeny of minerals is a developed branch of genetic mineralogy. The available information makes it possible to reconstruct the conditions of their genesis and growth based on the external shape and features of the internal structure of minerals and mineral aggregates. The rich experience of researching inorganic compounds can and should be effectively used in biology and medicine to highlight possible mechanisms of biomineralization in processes of pathogenic origin based on their geological analoguesBarannyk K., Ishkov V., Molchanov R., Barannyk S

    Inventions in the Area of Nanomaterials and Nanotechnologies. Part III

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    Introduction. Advanced technologies inspire people by demonstrating the latest achievements (materials, methods, systems, technologies, devices etc.) that dramatically change the world. This, first of all, concerns nanotechnological inventions designed by scientists, engineers and specialists from different countries. Main part. The article provides an abstract overview of inventions of scientists, engineers and specialists from different countries: Russia, USA, Turkmenistan, Japan et al. The results of the creative activity of scientists, engineers and specialists, including inventions in the field of nanotechnology and nanomaterials allow, when introduced to industry, achieving a significant effect in construction, housing and communal services, and related sectors of the economy. For example, the invention «Modifying additive» is related to the road construction and can be applied in production of asphalt-concrete, including that with utilizing of nanotechnologies. To improve performance characteristics of bitumen and asphalt concrete one can use modifying additive which comprises a mix of carbon nanomaterials. The aim of the invention is to solve the task of creating new technology which could provide obtaining of asphalt concrete with enhanced performance characteristics. The following inventions in the field of nanotechnology can also be interesting for specialists: a method to obtain multi-layered nanocomposite coating; a method of laser surface treatment for steel products; a device to obtain graphene-containing suspension; a method to obtain nanocrystal silicon powder; a self-cleaning material with chemical and biological protection properties; a method of obtaining nanostructured composite material on the basis of aluminum; a device control system with the shape memory effect to manipulate micro- and nanoobjects; a method to form plasmon nanostructures on the object surfaces to provide non-destructive analysis of low concentrations of chemical compounds by Raman spectroscopy et al. Conclusion. One of the most challenging tasks the economy of every country face is to increase industrial competitiveness through technological upgrade. From the side of the state and companies the principal object to control in this process are the people and enterprises dealing with introduction of inventions and new technologies

    Features of the structure of urinary stones in residents of industrially developed regions suffering from oxalate urolithiasis

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    Minerals of biogenic origin are integral elements of the structure of many living organisms. Along with genetically physiogenic minerals, pathogenic biominerals are also common. These include, in particular, urinary stones — uroliths, which are formed as a result of the development of urolithiasis. Urolithiasis is called the "disease of civilization" for a reason. According to the World Health Organization, the incidence of this disease has increased 1.5 times over the past 12 years. It affects one person in a hundred in the world. For many centuries, information about the symptoms of the disease and methods of its treatment has been accumulated, many issues of mineralogy, in particular, the ontogeny of uroliths, remain insufficiently studied. Today, the ontogeny of minerals is a developed branch of genetic mineralogy. The available information makes it possible to reconstruct the conditions of their genesis and growth based on the external shape and features of the internal structure of minerals and mineral aggregates. The rich experience of researching inorganic compounds can and should be effectively used in biology and medicine to highlight possible mechanisms of biomineralization in processes of pathogenic origin based on their geological analogue
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