Zobrazeno 1 - 10
of 997
pro vyhledávání: '"System matrix"'
Publikováno v:
Yuanzineng kexue jishu, Vol 58, Iss 10, Pp 2211-2219 (2024)
As radioactive sources are increasingly used in scientific research, industry and other fields, radioactive sources are often lost due to improper management and control. Since gamma rays have higher penetrating power and longer action distance than
Externí odkaz:
https://doaj.org/article/3edbc582720545ec9b494ac4f6674c40
Publikováno v:
Российский технологический журнал, Vol 12, Iss 4 (2024)
Objectives. The purpose of this work was to create an effective iterative algorithm for the tomographic reconstruction of objects with large volumes of initial data. Unlike the convolutional projection algorithm, widely used in commercial industrial
Externí odkaz:
https://doaj.org/article/93ce38377dea4a1abbd230533cf076bc
Publikováno v:
IEEE Access, Vol 11, Pp 85852-85864 (2023)
The nondestructive characteristics of $\gamma $ -photon imaging technology make it attractive potential in the industry. However, in industrial detection with a large detection range and high resolution, iteration method, the image reconstruction alg
Externí odkaz:
https://doaj.org/article/c495c63afb5949ddb67f7ac2abb3df1c
Publikováno v:
Visual Computing for Industry, Biomedicine, and Art, Vol 5, Iss 1, Pp 1-13 (2022)
Abstract Magnetic particle imaging (MPI) is an emerging molecular imaging technique with high sensitivity and temporal-spatial resolution. Image reconstruction is an important research topic in MPI, which converts an induced voltage signal into the i
Externí odkaz:
https://doaj.org/article/af174129f75940eab23f2192378a4796
Autor:
R. B. Ivut, A. S. Zinevich
Publikováno v:
Наука и техника, Vol 21, Iss 3, Pp 242-249 (2022)
The paper considers an issue of international logistics development in Belarus under world coronavirus COVID-19 pandemic. As a result of analytical reviewing of the up-to-date scientific literature on the problem under study, the expediency is stated
Externí odkaz:
https://doaj.org/article/1d9024f8ab8f4475963165ff181876b2
Akademický článek
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Akademický článek
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Autor:
Ludwig Kohaupt
Publikováno v:
Universal Journal of Mathematics and Applications, Vol 4, Iss 1, Pp 9-25 (2021)
In the present paper, generalized Rayleigh-quotient formulas for the real parts, imaginary parts, and moduli of the eigenvalues of general (not necessarily diagonalizable) matrices are derived by using quotients of the form $(Au,v)/(u,v)$ instead of
Externí odkaz:
https://doaj.org/article/18e5518855cb477fadbe03f8161fc2e3
Publikováno v:
IEEE Access, Vol 9, Pp 45632-45641 (2021)
This paper considers systems theoretic properties of linear systems defined in terms of spatial and temporal indeterminates. These include physical applications where one of the indeterminates is of finite duration. In some cases, a singular Roesser
Externí odkaz:
https://doaj.org/article/24241b53807b4c5e97a92fdd617f4fb2
Autor:
Min Yao, Gang Lv, Min Zhao, Ruipeng Guo, Jian Liu, Dawei Zhen, Ming Wang, Fang Xiong, Wei Liu
Publikováno v:
IEEE Access, Vol 9, Pp 71615-71625 (2021)
As a nondestructive testing technology, $\gamma $ -photon imaging shows immense potential in the industrial field. However, the limitations of $\gamma $ -photon imaging theory and detection technology result in various problems, such as low image res
Externí odkaz:
https://doaj.org/article/fc2e37466d0840f9b3a1fb03d6f07011