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Effects of ultrasonic waves on carbon dioxide solubility in brine at different pressures and temperatures

Petroleum Science 2017年第3期14卷 597-604页

作者： Hossein Hamidi Erfan Mohammadian Amin Sharifi Haddad Roozbeh Rafati Amin Azdarpour Panteha Ghahri Adi Putra Pradana Bastian Andoni chingis akhmetov School of Engineering King’s College University of Aberdeen Faculty of Chemical Engineering University Technology MARA Department of Petroleum Engineering Marvdasht BranchIslamic Azad University

The adverse impacts of CO2 emission on the global warming highlight the importance of carbon capture and storage technology and geological storage of CO2 under solubility trapping mechanisms. Enhancing the solubility of CO2 in formation water has always been the focus of research in the area of CO2 sequestration. Ultrasound techniques are one of the environmentally friendly methods that use high-intensity acoustic waves to improve gas solubility in liquids. Ultrasonic waves can alter the properties of different phases that lead to chemical reactions and provide a means to increase the solubility of CO2 in connate water. In this study, we investigated the effects of ultrasound on the solubility of CO2 in connate water under different conditions of pressure, temperature, and salinity. The results showed that the solubility of CO2 was improved with increasing pressure under ultrasonic effects.However, the solubility of CO2 was inversely proportional to the increase in brine salinity and temperature. Therefore,it was concluded that the solubility of CO2 might be enhanced in the presence of ultrasound.

关键词： Carbon dioxide CO2 sequestration Ultrasound High-frequency waves Solubility

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Modification of the Lagrange-Jacobi Equation and Its Application

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World Journal of Mechanics 2023年第6期13卷 127-134页

作者： chingis Omarov Gulnara Omarova Fesenkov Astrophysical Institute Almaty Kazakhstan

The Lagrange-Jacobi equation is one of the significant tools for the qualitative analysis of the n-body problem. In this paper, we present the modified Lagrange-Jacobi equation by introducing a new formal parameter of n-body problem and propose its application to the dynamical study of clusters of galaxies which are large-scale structures of Universe. We put forward and study a new dynamical problem which is related to the stage of relaxation of observed stationary clusters of galaxies which are considered as a non-equilibrium systems of point masses. We also received the analytical form of the potential energy of such galaxy clusters. One of the applications of this analytical form is the analytical relation between the time of setting up the virial equilibrium in relaxing clusters of galaxies and the cosmological epoch T.

关键词： Celestial Mechanics Large-Scale Structure of Universe Galaxies Clusters Cosmological Epoch

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New measurements and phase shift analysis of p^16O elastic scattering at astrophysical energies

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Chinese Physics C 2017年第1期41卷 77-86页

作者： Sergey Dubovichenko Nassurlla Burtebayev Albert Dzhazairov-Kakhramanov Denis Zazulin Zhambul Kerimkulov Marzhan Nassurlla chingis Omarov Alesya Tkachenko Tatyana Shmygaleva Stanislaw Kliczewski Turlan Sadykov Fesenkov Astrophysical Institute "NCSRT"ASC MID Republic of Kazakhstan Institute of Nuclear Physics ME RK Almaty Republic of Kazakhstan Kazakh National University al-Farabi Almaty Republic of Kazakhstan H. Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences Cracow Poland Institute of Physics and Technology Almaty Republic of Kazakhstan

The results of new experimental measurements of p^16O elastic scattering in the energy range of 0.6–1.0MeV at angles of 40°–160° are given. Phase shift analysis of p^（16）O elastic scattering was made using these and other experimental data on differential cross sections in excitation functions and angular distributions at energies of up to 2.5 Me V.

关键词： astrophysical energies phase shift analysis angular distributions cluster model.

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