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Нигерия, как и большинство африканских стран, богата природными минеральными ресурсами. На протяжении многих лет, это положительно сказывалось на экономическом потенциале развивающихся стран африканского континента.
Оффионг М.Б.
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Дан обзор состояния геохронологических исследований Западной Сибири. В 50-летней истории изучения геохронологии фундамента Западно-Сибирского мегабассейна намечается два этапа, причем последний из них - этап изучения с использованием современных методов ...
doaj
The goals of theresearch are the geochemistry and identification of granite rocks. The granitic rocks are part of the Syrostan massive, which is located in Southern Ural.
Georgievskiy Alexey F. +4 more
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Особенности размещения золоторудных месторождений Алжира
Relevance and purpose of the work. In the world market of precious metals, the value of gold is constantly growing, which determines the increase in production volumes and the need to increase resources through the search and exploration of new deposits.
Гугали Ф. +1 more
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2023
The object of study is a four-level system of the atom The purpose of the work is to study three-photon resonance in atomic gas media As a result of the study, a mathematical model of a four-level system of the atom was created: a system of equations for the density matrix was obtained, graphs of the population of all levels depending on detunings were
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The object of study is a four-level system of the atom The purpose of the work is to study three-photon resonance in atomic gas media As a result of the study, a mathematical model of a four-level system of the atom was created: a system of equations for the density matrix was obtained, graphs of the population of all levels depending on detunings were
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