Zobrazeno 1 - 10
of 7 515
pro vyhledávání: '"Least-squares method"'
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 22, Iss 5, Pp 62-70 (2024)
A method for estimating the orbital parameters of a nanosatellite-relay, implemented by measuring the total electron content in the ionosphere based on relaying GPS navigation signals at frequencies of 150/400 MHz, is substantiated. The method involv
Externí odkaz:
https://doaj.org/article/2adf12ed9dff4a02a71921ff514e7cce
Autor:
Ke Wang, Venus Khim-Sen Liew
Publikováno v:
International Journal of Economics and Financial Issues, Vol 15, Iss 1 (2024)
The challenge of improving economic development quality and achieving sustainable growth has become a pressing issue for the Chinese government. This study explores the interaction between vertical fiscal imbalance, local government expenditure struc
Externí odkaz:
https://doaj.org/article/710c18dcf7c944179321e29c744d3eb2
Autor:
Van Thu Pham, Hien Thi Thu Phan
Publikováno v:
Cogent Business & Management, Vol 11, Iss 1 (2024)
AbstractThis study aims to examine the impact of access to credit on labour productivity of Vietnamese firms. We use panel data from the Small and Medium Sized Manufacturing Enterprises Survey in Vietnam between 2007 and 2015 to conduct an analysis o
Externí odkaz:
https://doaj.org/article/3f6c220b5b474f5b884ab585838cac19
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 18, Iss 1 (2024)
Due to high power consumption and low energy efficiency of the hydrogenation feed multistage pump, conducting structural optimization design and reducing energy losses for this pump is necessary. In this study, an optimization method based on the par
Externí odkaz:
https://doaj.org/article/75f940b477164b449c263da151cbe85b
Publikováno v:
RUDN Journal of Engineering Research, Vol 25, Iss 2, Pp 151-161 (2024)
The work is devoted to solving the current problem of forecasting real estate prices by building a predictive model based on the generated database of real estate in Moscow, posted on the Move Real Estate website. Existing machine learning methods fo
Externí odkaz:
https://doaj.org/article/8a56af36b25b46b1b5bf13701d334dd2
Publikováno v:
智能科学与技术学报, Vol 6, Pp 253-261 (2024)
The concentration of nitrogen dioxide (NO2) in the air significantly affects environmental protection and public health. Current methods for NO2 concentration prediction lack sufficient characterization of spatiotemporal correlations. Therefore, this
Externí odkaz:
https://doaj.org/article/606f2ac38796487eb18ea4072528acfc
Publikováno v:
Физика волновых процессов и радиотехнические системы, Vol 27, Iss 2, Pp 85-90 (2024)
Background. The different sensors and global navigation satellite system are used for positioning unmanned aerial vehicles. But in case of short-term signal loss and increasing positioning accuracy, additional methods for estimating coordinates are u
Externí odkaz:
https://doaj.org/article/877338d299c84adda0eb18aaf094b037