Specific Aspects in Assessing Economic Feasibility of Rare Earth Mining
نویسندگان
چکیده
منابع مشابه
Economic aspects of rare diseases.
Economic problems related to the prevention, diagnosis and treatment of rare diseases are presented paying particular attention to the costs of financing treatment, including the issue of its refund, which is a fundamental and difficult to solve economic problem of the health care system. Rare diseases, despite the low frequency of occurrence, together cover a large group of diseases being a se...
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The low temperature specific heat C(H) of several rare-earth manganites (La0.7Sr0.3MnO3, Nd0.5Sr0.5MnO3, Pr0.5Sr0.5MnO3, La0.67Ca0.33MnO3, La0.5Ca0.5MnO3, La0.45Ca0.55MnO3 and La0.33Ca0.67MnO3) was measured as a function of magnetic field. We observed behaviour consistent with thermodynamic expectations, i.e., C(H) decreases with field for ferromagnetic metallic compounds by an amount which is ...
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ژورنال
عنوان ژورنال: World of Economics and Management
سال: 2020
ISSN: 2542-0429
DOI: 10.25205/2542-0429-2020-20-4-138-152