scholarly journals The persistence of precious metals and oil during the COVID-19 pandemic: evidence from a fractional integration and cointegration approach

2021 ◽  
Author(s):  
Nuruddeen Usman ◽  
Seyi Saint Akadiri
Keyword(s):  
Fractional Integration ◽  
Precious Metals

Our Precious Metals

1859 ◽  
Vol 1 (24) ◽  
pp. 379-379
Keyword(s):  
Precious Metals

Eco-Friendly Recycling Potential of Microwave Melting for the Recovery of Useful and Precious Metals from E-Waste

2018 ◽  
Vol 63 (2) ◽  
pp. 39-52
Author(s):  
Daniela Violeta Dumitrescu ◽  
◽  
Vasile Soare ◽  
Ionuţ Constantin ◽  
Marian Burada ◽  
...  
Keyword(s):  
Precious Metals ◽  
Recycling Potential

MAGNETO-LIQUID SEPARATORS FOR PROCESSING FINE-GRAINED ORES OF NON-FERROUS RARE AND PRECIOUS METALS

2017 ◽  
Vol 12 (30) ◽  
pp. 53-61
Author(s):  
A.A. Solodenko ◽  
◽  
A.B. Solodenko ◽  
S.I. Evdokimov ◽  
Yu.G. Klykov ◽  
...  
Keyword(s):  
Precious Metals ◽  
Fine Grained

The Determinants of Capital Adequacy Ratio: The Case of the Vietnamese Banking System in the Period 2011-2015

2017 ◽  
Vol 33 (2) ◽  
Author(s):  
Ngoc Anh Nguyen
Keyword(s):  
Banking System ◽  
Precious Metals ◽  
Capital Adequacy ◽  
The Other ◽  
Total Asset ◽  
Data Set ◽  
Hand Size ◽  
Net Interest Margin ◽  
Capital Adequacy Ratio ◽  
Positive Effect

The analysis of a data set of observation for Vietnamese banks in period from 2011 - 2015 shows how Capital Adequacy Ratio (CAR) is influenced by selected factors: asset of the bank SIZE, loans in total asset LOA, leverage LEV, net interest margin NIM, loans lost reserve LLR, Cash and Precious Metals in total asset LIQ. Results indicate based on data that NIM, LIQ have significant effect on CAR. On the other hand, SIZE and LEV do not appear to have significant effect on CAR. Variables NIM, LIQ have positive effect on CAR, while variables LLR and LOA are negatively related with CAR.

CONTINUOUS-TIME FRACTIONAL ORDER LINEAR SYSTEMS IDENTIFICATION USING CHEBYSHEV WAVELET

2020 ◽  
Vol 6 (8(77)) ◽  
pp. 23-28
Author(s):  
Shuen Wang ◽  
Ying Wang ◽  
Yinggan Tang
Keyword(s):  
Linear Systems ◽  
Fractional Order ◽  
Continuous Time ◽  
Fractional Integration ◽  
Operational Matrices ◽  
Computation Complexity ◽  
Order Linear ◽  
Fractional Integration Operator ◽  
Systems Identification ◽  
Chebyshev Wavelet

In this paper, the identification of continuous-time fractional order linear systems (FOLS) is investigated. In order to identify the differentiation or- ders as well as parameters and reduce the computation complexity, a novel identification method based on Chebyshev wavelet is proposed. Firstly, the Chebyshev wavelet operational matrices for fractional integration operator is derived. Then, the FOLS is converted to an algebraic equation by using the the Chebyshev wavelet operational matrices. Finally, the parameters and differentiation orders are estimated by minimizing the error between the output of real system and that of identified systems. Experimental results show the effectiveness of the proposed method.

How to make Russia a prosperous industrial country (about the role of the oil production and refining complex)

2020 ◽  
pp. 22-28
Author(s):  
Yu. Kanataev
Keyword(s):  
Precious Metals ◽  
Oil Production ◽  
Industrial Country ◽  
Industrial Scale ◽  
Deep Processing ◽  
Domestic Technology ◽  
Petrochemical Complex ◽  
Russian Economy ◽  
Further Development

The author, head of the Association of science-intensive enterprises having great experience in exploration of oil, precious metals, etc. in Russia and abroad (Austria, China, Israel, Ethiopia), first implemented on an industrial scale deep processing of oil using domestic technology, discusses the problems of further development of the Russian economy through the prism of their solutions to the main industries — oil and petrochemical complex.

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