Options for processing of aspen wood to carbon materials

Thermochemical processing of aspen wood to produce carbon materials is of interest considering that it allows increasing the cost of its products several times and enhancing the sustainability of forest complex enterprises.Currently, the enterprises are confined to the manufacture of charcoal, although it is possible to produce other carbon materials, such as charcoal briquettes, activated carbon and oxidized coal.While processing aspen wood, it is feasible to arrange manufacturing charcoal briquettes. Increased mechanical strength and high bulk density of briquettes raises the range of economically viable transportation of manufactured products, i.e. logistics is being improved.To obtain stable quality activated carbon from aspen coal, water vapor activation is the least environmentally hazardous. For such activation implementation, we recommend using a rotary kiln equipped with a Z-shaped insert. For reasons of environmental safety, the oxidation of activated carbon is preferably carried out using hot, humid air. In this case, unlike liquid-phase oxidation, no wastewater is formed. © 2019 IOP Publishing Ltd. All rights reserved

Comments to news city portal as a tool for monitoring of the social situation

The study is based on the monitoring review to identify sites of social tension. The author analyzes the typology of review, their value-semantic and evaluative field and also gives psychological explanation for such a wide and active presence review in modern society.В основе исследования — мониторинг комментариев с целью выявления узлов социальной напряженности. Анализируется типология комментариев, их ценностно-семантическое и оценочное поле, а также дается психологическое объяснение столь широкому и активному присутствию комментариев в современном медиапространстве

Socio-Communicative Technology of Working with Public Opinion in the Context of an Environmental Incident

The article is devoted to the problem of resolving environmental incidents of various origins, building an effective crisis management model. The article examines the analysis of crisis communications, subjects of environmental communications, sources of information dissemination, response tools.   Target. Formation of a successful practice of overcoming the environmental crisis based on the development of an effective communication strategy and action model.   Methodology. In the course of the research, in order to form a theoretical base, the author turned to the works of Russian and foreign researchers studying the issues of social and communicative technologies, crisis communications. In the practical part, materials from the mass media, information from state bodies, and the author’s own experience in resolving crisis situations were used. To draw conclusions, strategies and actions in three different categories of environmental crises were evaluated and the results they led to.   Results. Issues of environmental protection and the quality of ecology are increasingly of concern to citizens, they quickly move from social to political. The ability to competently respond to overcoming environmental crises, minimizing their consequences can not only maintain the official position of a representative of state authorities and business stability, but also ensure social stability in society and trust in management institutions

Shear viscosity in microscopic calculations of A+A collisions at energies of Nuclotron-based Ion Collider fAcility (NICA)

Time evolution of shear viscosity $\eta$, entropy density $s$, and their ratio $\eta / s$ in the central area of central gold-gold collisions at NICA energy range is studied within the UrQMD transport model. The extracted values of energy density, net baryon density and net strangeness density are used as input to (i) statistical model of ideal hadron gas to define temperature, baryo-chemical potential and strangeness chemical potential, and to (ii) UrQMD box with periodic boundary conditions to study the relaxation process of highly excited matter. During the relaxation stage, the shear viscosity is determined in the framework of Green-Kubo approach. The procedure is performed for each of 20 time slices, corresponding to conditions in the central area of the fireball at times from 1~fm/$c$ to 20~fm/$c$. For all tested energies the ratio $\eta / s$ reaches minimum, $\left( \eta/s \right)_{min} \approx 0.3$ at $t \approx 5$~fm/$c$. Then it increases up to the late stages of the system evolution. This rise is accompanied by the drop of both, temperature and strangeness chemical potential, and increase of baryo-chemical potential.Comment: LATEX, 9 pages, 10 figure

ASSOCIATION OF THE BONE LOSS WITH MAIN CLINICAL AND MICROBIOLOGICAL PARAMETERS IN CHRONIC PERIODONTITIS

Literature data have reported that certain Gram-negative anaerobe bacteria from the subgingival environment are important etiological agents of chronic periodontal disease. Based on published criteria identifying periodontal pathogens, major evidences has been shown for: Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis and Tannerella forsythia; moderate evidences for: Prevotella intermedia, Peptostreptococcus /Micromonas/ micros, Fusobacterium nucleatum, Eubacterium nodatum, Campylobacter rectus, and spirochetes (Treponema denticola). Microbiological data has been suggested by several studies as a useful indicator of disease progression, selection of an adjunctive antimicrobial administration, healing assessment and disease recurrence. The results of this study demonstrate statistically significant correlation between periodontal attachment loss and the prevalence of Porphyromonas gingivalis, Tannerella forsythia and Peptostreptococcus (Micromonas) micros in deep periodontal pockets of severe chronic periodontitis patients

Реагування працівників патрульної поліції на повідомлення про кримінальні правопорушення та інші події

Панова, Е. О. Реагування працівників патрульної поліції на повідомлення про кримінальні правопорушення та інші події / Елеонора Олегівна Панова // Актуальні проблеми сучасної науки в дослідженнях молодих учених : тези доп. учасників наук.-практ. конф. з нагоди святкування Дня науки, відзначення Дня Європи та 70-річчя заснування Ради Європи (м. Харків, 16 трав. 2019 р.) / МВС України, Харків. нац. ун-т внутр. справ. - Харків, 2019. - С. 130-132.Визначено функції, які здійснюють наряди патрульної поліції на місці події, реагуючи на зави та повідомлення про вчинені кримінальні правопорушення та інші повідомлення.The functions performed by patrol police units at the scene, responding to calls and reports of committed criminal offenses and other reports, are defined.Определены функции, которые осуществляют наряды патрульной полиции на месте происшествия, реагируя на заявления и сообщения о совершенных уголовных правонарушениях

Chemical weathering of lower paleozoic black shales of south Sweden

Lower Paleozoic black shales are widespread in Sweden and form part of the Baltic paleobasin, which deposits are also known in Estonia and the Leningrad Oblast of Russia. These rocks are enriched in a carbon substance and characterized by the significant content of uranium, vanadium, molybdenum, copper, nickel, cobalt, zinc, and lead. Black shales contain high levels of Sr – 968; Ba – 337; U – 229; V – 509; Mo – 165; Zn – 411; Ni – 214; Cu – 112 (ppm) in secondary minerals composition formed on their surface. Retrograde diagenetic conditions facilitate the black shales chemical weathering. Elements of the first (U), second (Mo, Sr, Zn), and third (V) hazard classes are washed out of black shales and secondary minerals and can further enter biological cycles

MIGRATION FORMS OF CHEMICAL ELEMENTS IN THE INTRUSIVE ROCKS OF THE EASTERN DESERT (EL SELA AREA, EGYPT)

In the Egypt's Eastern Desert intrusive rocks with U-REE mineralization (two-mica granites, microgranites, dolerites, and bostonites) are developed. We estimated the content of chemical elements in reference samples of intrusive rocks and also in their water-soluble (colloid-salt) fraction. This fraction is water-extracted from the rock under certain conditions. The rock sample and its colloid-salt fraction are analyzed using ICP-MS. The chemical characteristic of the extracted fraction reflects the mobile migrating part of the chemical elements in the composition of the rocks. Comparison of the obtained data allows us to estimate the share of migrating and weakly migrating elements