Zobrazeno 1 - 10
of 14
pro vyhledávání: '"P. B. Utkin"'
Publikováno v:
IEEE Access, Vol 10, Pp 12814-12828 (2022)
The present work focus was developing a system for early automatic detection of smoke plumes in visible-light images. The system used a realistic dataset gathered in 274 different days from a total of nine real surveillance cameras, with most smoke p
Externí odkaz:
https://doaj.org/article/a0448a7892d24c46ad6c4933cda54742
Autor:
Eduardo Feijão, Ricardo Cruz de Carvalho, Irina A. Duarte, Ana Rita Matos, Maria Teresa Cabrita, Andrei B. Utkin, Isabel Caçador, João Carlos Marques, Sara C. Novais, Marco F. L. Lemos, Patrick Reis-Santos, Vanessa F. Fonseca, Bernardo Duarte
Publikováno v:
Frontiers in Environmental Science, Vol 10 (2022)
Emerging pollutants impose a high degree of stress on marine ecosystems, compromising valuable resources, the planet and human health. Pharmaceutical residues often reach marine ecosystems, and their input is directly related to human activities. Flu
Externí odkaz:
https://doaj.org/article/63312f8217894db39ee37d1e150d0de2
Autor:
Ricardo Cruz de Carvalho, Eduardo Feijão, Ana Rita Matos, Maria Teresa Cabrita, Andrei B. Utkin, Sara C. Novais, Marco F. L. Lemos, Isabel Caçador, João Carlos Marques, Patrick Reis-Santos, Vanessa F. Fonseca, Bernardo Duarte
Publikováno v:
Toxics, Vol 10, Iss 12, p 780 (2022)
Sodium Dodecyl Sulfate (SDS) is an anionic surfactant, extensively used in detergents, household and personal care products, as well as in industrial processes. The present study aimed to disclose the potential toxicological effects of SDS exposure u
Externí odkaz:
https://doaj.org/article/2ac43253a758477c8fd173050d1ad50d
Autor:
Ricardo Cruz de Carvalho, Eduardo Feijão, Ana Rita Matos, Maria Teresa Cabrita, Andrei B. Utkin, Sara C. Novais, Marco F. L. Lemos, Isabel Caçador, João Carlos Marques, Patrick Reis-Santos, Vanessa F. Fonseca, Bernardo Duarte
Publikováno v:
Toxics, Vol 10, Iss 8, p 430 (2022)
The use of glyphosate-based herbicides (GBHs) worldwide has increased exponentially over the last two decades increasing the environmental risk to marine and coastal habitats. The present study investigated the effects of GBHs at environmentally rele
Externí odkaz:
https://doaj.org/article/0cca3affb0a140a3afcef0e5972c0438
Publikováno v:
Applied Sciences, Vol 12, Iss 3, p 997 (2022)
As a result of the development of non-invasive optical spectroscopy, the number of prospective technologies of plant monitoring is growing. Being implemented in devices with different functions and hardware, these technologies are increasingly using
Externí odkaz:
https://doaj.org/article/0dea719061fb4bba80d7d27811e72197
Publikováno v:
Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki, Vol 13, Iss 2, Pp 165-167 (2013)
Data structure used in indication frame formation displaying in onboard navigation system is considered.
Externí odkaz:
https://doaj.org/article/9ee131a650aa4393b99d8d860a88a226
Autor:
A. A. Ostsemin, P. B. Utkin
Publikováno v:
Journal of Applied Mechanics and Technical Physics. 55:1045-1054
The problem of determining a stress-strain state described by singular and regular terms and a stress intensity factor in the vicinity of the tip of a crack-like defect in a plate under biaxial loading is considered. The Kolosov-Muskhelishvili method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f419289231f91d579081198ce18473a6
https://doi.org/10.1134/s0021894414060170
https://doi.org/10.1134/s0021894414060170
Publikováno v:
Journal of Applied Mechanics and Technical Physics. 53:246-257
A mathematical model for the stress-strain state of a plate with an inclined elliptical defect under biaxial loading is considered. Exact formulas for stresses in polar coordinates, displacements, principal stresses, maximum shear stress, and stress
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c4e281e97b451b15cf8dac32d708db6
https://doi.org/10.1134/s0021894412020137
https://doi.org/10.1134/s0021894412020137
Autor:
P. B. Utkin, A. A. Ostsemin
Publikováno v:
Mechanics of Solids. 45:214-225
We consider a mathematical model of the stress-strain state of a plate with an inclined elliptic defect. We obtain approximate formulas for the stress tensor, the displacements, and the principal stresses near the defect vertex. The obtained formulas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a1733483ae945860c4f47ab6c6792f1
https://doi.org/10.3103/s002565441002007x
https://doi.org/10.3103/s002565441002007x
Autor:
P. B. Utkin, A. A. Ostsemin
Publikováno v:
Mechanics of Solids. 44:277-287
It is a common point of view in fracture mechanics that, for any geometry of the body with a crack and any boundary conditions for the loading acting in the body plane, the stress and displacement components near the crack tip can be approximated in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b41f1672933b43ddebb65fab7a76fb0
https://doi.org/10.3103/s0025654409020137
https://doi.org/10.3103/s0025654409020137