Zobrazeno 1 - 10
of 176
pro vyhledávání: '"Todor A. Todorov"'
Publikováno v:
Mathematics, Vol 12, Iss 17, p 2732 (2024)
The development of computer technology and communication systems provides new opportunities for learning in an electronic environment. Remote education in virtual electronic classrooms has been widely used in recent decades, especially during the pan
Externí odkaz:
https://doaj.org/article/fbd12f2cfe774d0f946039d7a2d7d599
Publikováno v:
Symmetry, Vol 15, Iss 7, p 1394 (2023)
Using barrier strip conditions, we study the solvability of two-point boundary value problems for the equation x(n)=f(t,x,x′,…,x(n−1)). In the case n=4, we apply the used approach to obtain results guaranteeing positive or non-negative, monoton
Externí odkaz:
https://doaj.org/article/c68a20a3a7614b9bb8dfe45c95a48583
Publikováno v:
Journal of Analytical Atomic Spectrometry. 38:818-826
Accurate results with analytical solution to standard concentration ratios less than 10.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08ff3c576f0bf152924336b7da41c959
https://doi.org/10.1039/d2ja00346e
https://doi.org/10.1039/d2ja00346e
Autor:
Miroslav S. Petrov, Todor D. Todorov
Publikováno v:
Applied Numerical Mathematics. 183:221-235
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2a495d5a4cba9d626bdb4bb4d3d18b3
https://doi.org/10.1016/j.apnum.2022.09.007
https://doi.org/10.1016/j.apnum.2022.09.007
Publikováno v:
Symmetry; Volume 15; Issue 7; Pages: 1394
Using barrier strip conditions, we study the solvability of two-point boundary value problems for the equation x(n)=f(t,x,x′,…,x(n−1)). In the case n=4, we apply the used approach to obtain results guaranteeing positive or non-negative, monoton
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::fea279d05f5304c64979ee64d22e7494
Publikováno v:
Axioms, Vol 9, Iss 2, p 62 (2020)
Under barrier strips type assumptions we study the existence of C 3 [ 0 , 1 ] —solutions to various two-point boundary value problems for the equation x ‴ = f ( t , x , x ′ , x ″ ) . We give also some results guaranteeing positive or non-nega
Externí odkaz:
https://doaj.org/article/40432cb2101b422f9f5da8d63364a749
Publikováno v:
ACS Food Science & Technology. 1:511-523
Arsenic was speciated in 46 seaweed samples purchased from the U.S. market, i.e., brown (arame, hijiki, kombu, knotted wrack, oarweed, wakame), green (sea lettuce), and red (dulse, Irish moss, lave...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::078f57031d5b8ea77446edaf6d81b0fe
https://doi.org/10.1021/acsfoodscitech.0c00120
https://doi.org/10.1021/acsfoodscitech.0c00120
We present the development and optimization of an analytical method based on Laser Ablation–Inductively Coupled Plasma–Mass Spectrometry (LA-ICP-MS) for the analysis of multivitamin dietary supplements. Samples were ground and mixed with a cellul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53b3e0317f399bfb5454adaecb1c0f77
https://doi.org/10.21203/rs.3.rs-1638944/v1
https://doi.org/10.21203/rs.3.rs-1638944/v1
Autor:
Todor Stoilo Todorov, Byung Chul Kim, Ramu Manikandan, Kook Hyun Yu, C. Justin Raj, Simon E. Moulton
Publikováno v:
Chemistry – A European Journal. 27:669-682
Carbon-based symmetric supercapacitors (SCs) are known for their high power density and long cyclability, making them an ideal candidate for power sources in new-generation electronic devices. To boost their electrochemical performances, deriving act
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6a3e878527e2db5686b86eadb8bb455
https://doi.org/10.1002/chem.202003253
https://doi.org/10.1002/chem.202003253
Publikováno v:
Neural Computing and Applications. 32:14153-14171
This paper proposes a radial basis function (RBF) network-based method for solving a nonlinear second-order elliptic equation with Dirichlet boundary conditions. The nonlocal term involved in the differential equation needs a completely different app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c40256011d08c2a2be3a81e95ce61319
https://doi.org/10.1007/s00521-020-04810-0
https://doi.org/10.1007/s00521-020-04810-0