Maria Ponomareva

Saint Petersburg Mining University

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ОВ

О. В. Черемисина

Saint Petersburg Mining University

Elizaveta Cheremisina

Montanuniversität Leoben

V. G. Barko

ВВ

В. В. Сергеев

Saint Petersburg Mining University

V. M. Irklei

National University of Technology

S.-S.A. Pavlova

Tatar Scientific Research Institute of Agriculture

V. N. Sagdiev

Saint Petersburg Mining University

ДЭ

Д. Э. Чиркст

Saint Petersburg Mining University

L.V. Dubrovina

Russian Academy of Sciences

V. N. Drozdovskii

Cooperative Institutions

Saint Petersburg Mining University

Russian Academy of Sciences

Mining Institute

Tyumen State Medical University

National Research University Higher School of Economics

Kompetenzzentrum für elektrochemische Oberflächentechnologie

Stavropol State Agrarian University

Charles University

Research Institute of Synthetic Fiber with the Pilot Plant

A. N. Nesmeyanov Institute of Organoelement Compounds

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SOLVING AXISYMMETRIC POTENTIAL PROBLEMS USING THE INDIRECT BOUNDARY ELEMENT METHOD

Vestnik Tomskogo gosudarstvennogo universiteta Matematika i mekhanika (2015)

Maria Ponomareva Evgeniy Alekseevich SOBKO V. A. Yakutenok

М.А.Пономарева, Е.А.Собко, В.А.Якутенок РЕШЕНИЕ ОСЕСИММЕТРИЧНЫХ ЗАДАЧ ТЕОРИИ ПОТЕНЦИАЛА НЕПРЯМЫМ МЕТОДОМ ГРАНИЧНЫХ ЭЛЕМЕНТОВ 1 Рассматривается метод численного решения уравнения Лапласа в осесимметричных областях с осесимметричными граничными условиями с использованием цилиндрической системы координат.Описывается переход к гранично-интегральной формулировке задачи.Приводится вывод основных соотношений непрямого

10.17223/19988621/37/8

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Citations (2)

Получение и исследование пористой керамики на основе диоксида циркония для эндопротезирования

Физика и химия стекла (2020)

Н. Ю. Ковалько Maria Ponomareva Т. В. Хамова А. С. Долгин М. В. Калинина

10.31857/s0132665120030087

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The swelling of alkali cellulose in sodium hydroxide solutions

Fibre Chemistry (1982)

Г. А. Степанова A. B. Pakshver A. L. Kaller Maria Ponomareva G. V. Polyakova

Sodium hydroxide

10.1007/bf00548273

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Citations (7)

Thermodynamic characteristics of sorption extraction and chromatographic separation of anionic complexes of erbium and cerium with Trilon B on weakly basic anionite

Russian Journal of Physical Chemistry A (2016)

О. В. Черемисина Maria Ponomareva V. N. Sagdiev

Erbium

Separation (statistics)

Chromatographic Separation

10.1134/s0036024416030079

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Citations (5)

Don Periodical Press as an Actor in the Formation of Public Sentiments in the First Months of the Great Patriotic War

IZVESTIYA VUZOV SEVERO-KAVKAZSKII REGION SOCIAL SCIENCE (2024)

Pavel A. Ogoreltsev Maria Ponomareva

The article presents the historiography and methodology of analysis of periodicals published in the Rostov region in the initial period of the Great Patriotic War. More than 100 electronic copies of publications from the Don Electronic Library were used for content analysis. Based on the author's matrix, the motivational and informational aspects of the texts were identified, quantitative and qualitative patterns of the formation of public sentiment at a turning point in history were described. Particular attention is paid to the presented facts, events and personalities of local significance, on their basis conclusions were made about the contribution of the Don media to the defense.

10.18522/2687-0770-2024-4-59-64

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Sorption purification of acid storage facility water from iron and titanium on organic polymeric materials

Journal of Mining Institute (2023)

О. В. Черемисина Maria Ponomareva Anastasia Molotilova Yulia Mashukova M.V. Soloviev

Obtaining and production of metals from natural raw materials causes a large amount of liquid, solid, and gaseous wastes of various hazard classes that have a negative impact on the environment. In the production of titanium dioxide from ilmenite concentrate, hydrolytic sulphuric acid is formed, which includes various metal cations, their main part is iron (III) and titanium (IV) cations. Hydrolytic acid waste is sent to acid storage facilities, which have a high environmental load. The article describes the technology of ion exchange wastewater treatment of acid storage facility from iron (III) and titanium (IV) cations, which form compounds with sulphate ions and components of organic waste in acidic environments. These compounds are subjected to dispersion and dust loss during the evaporation of a water technogenic facility, especially in summer season. Sorption of complex iron (III) cations [FeSO4]+ and titanyl cations TiO2+ from sulphuric acid solutions on cation exchange resins KU-2-8, Puromet MTS9580, and Puromet MTS9560 was studied. Sorption isotherms were obtained both for individual [FeSO4]+ and TiO2+ cations and in the joint presence. The values of the equilibrium constants at a temperature of 298 K and the changes in the Gibbs energy are estimated. The capacitive characteristics of the sorbent were determined for individual cations and in the joint presence.

10.31897/pmi.2023.28

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Citations (7)

Juridical Monuments of 5–17th cc.: Authoritative Texts October 12, 2022 (Moscow, Russia)

Philosophy Journal of the Higher School of Economics (2022)

Maria Ponomareva

10.17323/2587-8719-2022-4-181-188

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The Social Policy of the State in the Field of Protection of Childhood and Motherhood in 1950-1970 (on the Periodical Press Materials of the Rostov Region)

IZVESTIYA VUZOV SEVERO-KAVKAZSKII REGION SOCIAL SCIENCE (2023)

Maria Ponomareva Anna S. Ruman

The article is devoted to the reflection in the periodical press of the Rostov region of 1950-1970 of the social policy of the state aimed at the development of state support for women, protection of mother-hood and childhood, improvement of living conditions of the Soviet family. The article reflects the activities of the state in the implementation of individual measures and the response of society to the initiatives of the Soviet government. Special attention is paid to the materials of the periodical press, on the pages of which the problems of motherhood and childhood in the Rostov region are reflected, the priority of solving certain issues by state authorities is revealed. The importance of publications in newspapers on this subject is noted, as the most accessible and mass forms of periodicals for broadcasting the necessary vector of state policy to society. It is concluded that with the help of printing in the Rostov region, an ideal inseparable image of a working woman and a woman-mother was purposefully constructed. In addition, there was a popularization of the thesis about the purposeful efforts of the leadership of the country's social services of the necessary conditions for a work-ing woman during her employment at work, and the simultaneous upbringing of children in kindergartens and nurseries.

State policy

10.18522/2687-0770-2023-2-105-112

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Citations (1)

Application of the Organic Waste-Based Sorbent for the Purification of Aqueous Solutions

Water (2021)

О. В. Черемисина Т. Е. Литвинова В. В. Сергеев Maria Ponomareva Julia Mashukova

The effective purification of large-capacity wastewater from heavy non-ferrous metals and organic pollutants using inexpensive sorption technology remains a crucial task. Analyzing the current objectives of sustainable development, biochar obtained from chicken manure has prospects as a source for sorption purification of industrial wastewater. To determine the characteristics of organic material and the composition of the initial and equilibrium phases, the following analysis methods were used: volumetric, complexometric, pH-metric, X-ray fluorescence, chromatographic, spectrophotometric, luminescence-photometric and X-ray diffraction. The thermal nitrogen desorption method was used for determining the specific surface area and pore sizes with the Quantachrome Nova 1000e automatic analyzer. The sorption properties of the reprocessing product of the fresh poultry manure were investigated in relation to organic and inorganic compounds: phenols, benzene, ketones, cations of lead, mercury, manganese and iron. Based on the results obtained, technical conditions were developed for the use of the reprocessed organic waste-based product as a sorption material for household, industrial and technological wastewater purification from organic and inorganic components.

Industrial wastewater treatment

10.3390/w13213101

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Citations (9)

Viral Hepatitis A-associated with an aplastic anemia at a child 5 years old (clinical observation)

DOAJ (DOAJ: Directory of Open Access Journals) (2014)

Maria Ponomareva L. G. Goryacheva E. G. Boychenko Yu. V. Lobzin Daria Vasilyeva

Aplastic anemia

Viral Hepatitis

10.22625/2072-6732-2010-2-4-30-34

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