12 research outputs found

    Influence of nanosecond microwave pulses on the level of cortycosterone

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    This article describes experimental data on 30 nonlinear rats exposed to microwave radiation at frequencies 8, 13, 16 and 22 pulse per second (pps) in order to record corticosteron changes as an indicator of stress in rodent blood. During the experiment, it was found that the most significant increase is observed at frequencies 13, 16 pps and at 22, 8 pps a decrease and a slight increase in corticosteron were recorded respectively

    Metalliferous coals of coals of Azey deposit in Irkutsk coal basin

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    ΠΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ Ρ€Π°Π±ΠΎΡ‚Ρ‹ обусловлСна Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒΡŽ поиска Π½ΠΎΠ²Ρ‹Ρ… источников Ρ†Π΅Π½Π½Ρ‹Ρ… элСмСнтов, ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΡŽΡ‰ΠΈΡ… Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ соврСмСнной ΠΈΠ½Π½ΠΎΠ²Π°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ экономики. Π’ качСствС ΠΈΡ… пСрспСктивного источника Ρ€Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°ΡŽΡ‚ΡΡ ΡƒΠ³Π»ΠΈ ΠΈ Π·ΠΎΠ»Ρ‹ ΡƒΠ³Π»Π΅ΠΉ. Π˜Π·ΡƒΡ‡Π΅Π½ΠΈΠ΅ гСохимичСских особСнностСй ΡƒΠ³Π»Π΅ΠΉ ΠΈ Ρ„ΠΎΡ€ΠΌ нахоТдСния химичСских элСмСнтов Π² углях ΠΈ Π·ΠΎΠ»Π°Ρ… ΡƒΠ³Π»Π΅ΠΉ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎ для ΠΎΡ†Π΅Π½ΠΊΠΈ мСталлоносности ΡƒΠ³ΠΎΠ»ΡŒΠ½Ρ‹Ρ… мСстороТдСний, Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ ΠΊΡ€ΠΈΡ‚Π΅Ρ€ΠΈΠ΅Π² выявлСния мСталлоносных ΡƒΠ³Π»Π΅ΠΉ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊ ΠΏΠΎ ΠΈΠ·Π²Π»Π΅Ρ‡Π΅Π½ΠΈΡŽ Ρ†Π΅Π½Π½Ρ‹Ρ… элСмСнтов. ΠŸΠ΅Ρ€ΡΠΏΠ΅ΠΊΡ‚ΠΈΠ²Π½Ρ‹ΠΌ источником Ρ†Π΅Π½Π½Ρ‹Ρ… элСмСнтов являСтся АзСйскоС мСстороТдСниС, Π² ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΌ содСрТаниС ряда Ρ†Π΅Π½Π½Ρ‹Ρ… элСмСнтов достигаСт Π²ΠΎΠ·ΠΌΠΎΠΆΠ½Ρ‹Ρ… ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½ΠΎ Π·Π½Π°Ρ‡ΠΈΠΌΡ‹Ρ… Ρ€ΡƒΠ΄Π½Ρ‹Ρ… ΠΊΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ†ΠΈΠΉ. ЦСль исслСдований: Π²Ρ‹ΡΠ²ΠΈΡ‚ΡŒ гСохимичСскиС особСнности ΠΈ Ρ„ΠΎΡ€ΠΌΡ‹ нахоТдСния элСмСнтов-примСсСй Π² углях, Π·ΠΎΠ»Π°Ρ… ΡƒΠ³Π»Π΅ΠΉ ΠΈ Π½Π΅ΡƒΠ³ΠΎΠ»ΡŒΠ½Ρ‹Ρ… прослоях ΡƒΠ³ΠΎΠ»ΡŒΠ½Ρ‹Ρ… пластов АзСйского мСстороТдСния. ΠžΠ±ΡŠΠ΅ΠΊΡ‚Π°ΠΌΠΈ исслСдования ΡΠ²Π»ΡΡŽΡ‚ΡΡ ΡƒΠ³Π»ΠΈ ΠΈ ΡƒΠ³Π»Π΅Π²ΠΌΠ΅Ρ‰Π°ΡŽΡ‰ΠΈΠ΅ ΠΏΠΎΡ€ΠΎΠ΄Ρ‹ АзСйского мСстороТдСния Π˜Ρ€ΠΊΡƒΡ‚ΡΠΊΠΎΠ³ΠΎ бассСйна. ΠœΠ΅Ρ‚ΠΎΠ΄Ρ‹: ΠΈΠ½ΡΡ‚Ρ€ΡƒΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹ΠΉ Π½Π΅ΠΉΡ‚Ρ€ΠΎΠ½Π½ΠΎ-Π°ΠΊΡ‚ΠΈΠ²Π°Ρ†ΠΈΠΎΠ½Π½Ρ‹ΠΉ Π°Π½Π°Π»ΠΈΠ·, масс-спСктромСтричСский ΠΌΠ΅Ρ‚ΠΎΠ΄ с ΠΈΠ½Π΄ΡƒΠΊΡ‚ΠΈΠ²Π½ΠΎ-связанной ΠΏΠ»Π°Π·ΠΌΠΎΠΉ, Ρ€Π΅Π½Ρ‚Π³Π΅Π½ΠΎΡ„Π°Π·ΠΎΠ²Ρ‹ΠΉ Π°Π½Π°Π»ΠΈΠ·, ΡΠΊΠ°Π½ΠΈΡ€ΡƒΡŽΡ‰Π°Ρ элСктронная микроскопия с Ρ€Π΅Π½Ρ‚Π³Π΅Π½ΠΎΡΠΏΠ΅ΠΊΡ‚Ρ€Π°Π»ΡŒΠ½Ρ‹ΠΌ Π°Π½Π°Π»ΠΈΠ·ΠΎΠΌ, ΠΎΠ·ΠΎΠ»Π΅Π½ΠΈΠ΅ ΠΏΡ€ΠΎΠ± с ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ΠΌ Π·ΠΎΠ»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΈ влаТности, экстрагированиС Π±ΠΈΡ‚ΡƒΠΌΠΎΠ² ΠΈ Π³ΡƒΠΌΠΈΠ½ΠΎΠ²Ρ‹Ρ… кислот. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. ВыявлСно ΠΎΠ±ΠΎΠ³Π°Ρ‰Π΅Π½ΠΈΠ΅ ΡƒΠ³Π»Π΅ΠΉ АзСйского мСстороТдСния рядом Ρ€Π΅Π΄ΠΊΠΈΡ… элСмСнтов-примСсСй (REE, Sc, Zr, Hf, Ta, Th), Π²Π°ΠΆΠ½ΡƒΡŽ Ρ€ΠΎΠ»ΡŒ Π² ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΌ ΠΈΠ³Ρ€Π°Π΅Ρ‚ пирокластичСский ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π» ΠΊΠ°ΠΊ источник Ρ€Π΅Π΄ΠΊΠΎΠ·Π΅ΠΌΠ΅Π»ΡŒΠ½Ρ‹Ρ… элСмСнтов, тория, Ρ‚Π°Π½Ρ‚Π°Π»Π°, циркония ΠΈ гафния. УстановлСно, Ρ‡Ρ‚ΠΎ ΡƒΠ³Π»ΠΈ ΠΈΠ· Π·ΠΎΠ½Ρ‹ окислСния Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ·ΡƒΡŽΡ‚ΡΡ аномально высокими концСнтрациями Ρ€Π΅Π΄ΠΊΠΈΡ… элСмСнтов примСсСй (REE, Sc, Cr, Co, Au), ΠΏΡ€ΠΈΠΏΠΎΡ‡Π²Π΅Π½Π½Ρ‹Π΅ Π·ΠΎΠ½Ρ‹ ΡƒΠ³ΠΎΠ»ΡŒΠ½Ρ‹Ρ… пластов ΠΎΠ±ΠΎΠ³Π°Ρ‰Π΅Π½Ρ‹ тяТСлыми Ρ€Π΅Π΄ΠΊΠΎΠ·Π΅ΠΌΠ΅Π»ΡŒΠ½Ρ‹ΠΌΠΈ элСмСнтами, Sc, Co, Sb, Ta, Hf, Ba. ВыявлСно Π½Π°Π»ΠΈΡ‡ΠΈΠ΅ самородной ΠΈ интСрмСталличСской ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ Π² углях. УстановлСно, Ρ‡Ρ‚ΠΎ Π² малосСрнистых углях (~0,5 %) с Π½ΠΈΠ·ΠΊΠΈΠΌ содСрТаниСм ΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Π½ΠΎΠΉ сСры ΠΏΡ€Π΅ΠΎΠ±Π»Π°Π΄Π°ΡŽΡ‚ самородныС Ρ„ΠΎΡ€ΠΌΡ‹ элСмСнтов-Ρ…Π°Π»ΡŒΠΊΠΎΡ„ΠΈΠ»ΠΎΠ². ВсСго ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½ΠΎ ΡΠ²Ρ‹ΡˆΠ΅ 80 ΠΌΠΈΠ½Π΅Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… Ρ„ΠΎΡ€ΠΌ элСмСнтов-примСсСй, Π² Ρ‚ΠΎΠΌ числС ΠΌΠΎΠ½Π°Ρ†ΠΈΡ‚, бастнСзит, Ρ†ΠΈΡ€ΠΊΠΎΠ½, Π±Π°Π΄Π΄Π΅Π»Π΅ΠΈΡ‚, самородныС ΠΈ интСрмСталличСскиС соСдинСния ΠΈ Ρ‚. Π΄.The relevance of the research is caused by the need to find new sources of valuable elements that determine the development of modern innovative economy. Coals and ashes of coals are considered as their perspective source. The study of geochemical characteristics of coal and modes of occurrence of chemical elements in coals and ashes of the coals is required for estimation of metal content in coal deposits and development of the criteria for detecting metalliferous coals and techniques for extraction of valuable elements. A promising source of valuable elements is Azeyskoe deposit, where the content of a number of valuable elements reaches possible industrially important ore concentrations. The main aim of the research is to study the geochemical characteristics and modes of occurrence of impurity elements in coals, coal ashes and noncoal intercalations in coal seams of Azeyskoe deposit. Objects of the research are coal and coal bearing rocks of Azeyskoe deposit of Irkutsk basin. Methods: instrumental neutron activation analysis, mass spectrometry method with inductively coupled plasma, x/ray phase analysis, scanning electron microscopy with x/ray spectral analysis, ashing with determination of ash content and humidity, extraction of bitumen and humic acids. Results. The authors have determined the enrichment of Azeiskoe deposit coals with a number of rare impurity elements (REE, Sc, Zr, Hf, Ta, Th). Pyroclastic material as a source of rare earth elements, thorium, tantalum, zirconium and hafnium, is very important in this enrichment. It was determined that the coals in oxidation zone are characterized by anomalously high concentrations of rare impurity elements (REE, Sc, Cr, Co, Au), bottom formation zones of coal seams are enriched with heavy rare earth elements, Sc, Co, Sb, Ta, Hf, Ba. Presence of native and intermetallic mineralization in coals is revealed. It is established that in low/sulfur coals (~0,5 %) with a low content of sulfide sulfur native forms of elements-chalcophiles prevail. In total, more than 80 mineral forms of impurity elements, including monazite, bastnezite, zircon, baddeleyite, native and intermetallic compounds, etc., were found out

    Waste walnut shell valorization to iron loaded biochar and its application to arsenic removal

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    Iron loaded biochar (ILB) was prepared from waste walnut shell by microwave pyrolysis and its application for arsenic removal was attempted. The ILB was characterized using X-ray diffraction, scanning electron microscopy and BET Surface area analyzer. The adsorption isotherm of As (V) in ILB covering a temperature range of 25 to 45 °C, as well as the kinetics of adsorption at 25 °C were experimentally generated. The adsorption isotherms were modeled using Langmuir and Freundlich isotherm models, while the kinetics of adsorption was modeled using the pseudo-first-order, pseudo-second-order kinetic models, and intra particle diffusion model. The ILB had a surface area of 418 m2/g with iron present in the form of hematite (Fe2O3) and magnetite (Fe3O4). The arsenic adsorption isotherm matches well with Langmuir isotherm model with a monolayer adsorption capacity of 1.91 mg/g at 25 °C. The adsorption capacity of As (V) well compares with other porous adsorbents widely reported in literature, supporting its application as a cost effective adsorbent

    ΠžΡ†Π΅Π½ΠΊΠ° финансовой устойчивости коммСрчСских Π±Π°Π½ΠΊΠΎΠ² Российской Π€Π΅Π΄Π΅Ρ€Π°Ρ†ΠΈΠΈ

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    Banking system occupies one of the top positions in the economy. In this paper we developed a model for assessing the financial stability of commercial banks. The result of this research can be used by auditors and bank clients
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