Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Ivan Petryk"'
Publikováno v:
Фізика і хімія твердого тіла, Vol 23, Iss 3, Pp 478-483 (2022)
Using the elastic continuum approach, an energy spectrum and spectral dependences of a group velocities of confined acoustic phonons in planar quasi-two-dimensional nanostructures (nanofilms) of hexagonal symmetry of the 2H-PbI2 type were studied by
Externí odkaz:
https://doaj.org/article/11b74ec733484792a696a702c30d02c1
Publikováno v:
Energies, Vol 16, Iss 11, p 4464 (2023)
Today, pipelines are the safest and most economical way to transport petroleum products and one of the key components of modern energy infrastructure. Nevertheless, pipeline systems are associated with certain risks that can lead to environmental dis
Externí odkaz:
https://doaj.org/article/9d662b02ebeb457780a3a10cfdb2e626
Publikováno v:
Advances in Materials Science and Engineering, Vol 2022 (2022)
In foundry production, the duration of metal crystallization of the cast part, as well as the distribution of the thermal field, are described by systems of analytical equations. There are a number of methods for modeling these processes, but their t
Externí odkaz:
https://doaj.org/article/8dc613e186fb46cbb1949f4f33f2de5e
Publikováno v:
Shock and Vibration, Vol 2020 (2020)
Sucker-rod pump plant operation is accompanied by inertial and shock loads, affecting the fatigue strength of sucker rods and causing possible accidents. This work proposes the original design of a shock absorber of a sucker-rod string. The peculiari
Externí odkaz:
https://doaj.org/article/4cf90a7232c74c759c9f1e3b64486183
Publikováno v:
Energies; Volume 16; Issue 11; Pages: 4464
Today, pipelines are the safest and most economical way to transport petroleum products and one of the key components of modern energy infrastructure. Nevertheless, pipeline systems are associated with certain risks that can lead to environmental dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::1327cc2b9b1e97ba097a3248ee7a7741
Publikováno v:
Shock and Vibration, Vol 2020 (2020)
Sucker-rod pump plant operation is accompanied by inertial and shock loads, affecting the fatigue strength of sucker rods and causing possible accidents. This work proposes the original design of a shock absorber of a sucker-rod string. The peculiari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc3dbcbd12b0b73f4d625778e99973a2
https://doi.org/10.1155/2020/3292713
https://doi.org/10.1155/2020/3292713
Publikováno v:
Oil & Gas Science and Technology, Vol 73, p 34 (2018)
The new design of a resilient element for application in drilling devices of vibration protection is presented. A cylindrical shell with a cut along its generatrix is the peculiarity of the proposed design. The presented resilient element has high lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7da89d58581106eee4e84f5e982542c3
https://doi.org/10.2516/ogst/2018043
https://doi.org/10.2516/ogst/2018043