Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Catalin Pirvu"'
Publikováno v:
INCAS Bulletin, Vol 14, Iss 4, Pp 95-109 (2022)
This paper presents experimental results and a failure analysis of a composite for ballistic protection. The stratified plate is manufactured at laboratory scale, after a technology designed by the authors. The plates were tested for level FB2, takin
Externí odkaz:
https://doaj.org/article/0c789a600c494284a573fc71cb05edf1
Publikováno v:
INCAS Bulletin, Vol 12, Iss 4, Pp 145-154 (2020)
This paper presents an analysis of two cases, simulating the impact of a cylindical projectile on a perfectly rigid plate. One case is run without friction, the second one is run taking into account a friction coeficient between the plate and the pro
Externí odkaz:
https://doaj.org/article/167fe28f07594cc8b29c4fcbf389413e
Publikováno v:
INCAS Bulletin, Vol 12, Iss 4, Pp 261-265 (2020)
Many re-entry bodies, even if they are debris or not, have nonlinear dynamic stability characteristics that produce oscillations in flight. The free-to-tumble techniques can be used to extract damping coefficient of specific body for planetary entry.
Externí odkaz:
https://doaj.org/article/50a428f9a8ea4bfdb710d0dbaeb248db
Publikováno v:
Proceedings on Engineering Sciences, Vol 1, Iss 1, Pp 154-167 (2019)
This paper presents a review on using friction coefficient in modelling ballistic impact. The are discussed on friction introduced in modelling the impact at different levels: micro (fiber and yarns), meso (woven or unidirectional fabrics) and macro
Externí odkaz:
https://doaj.org/article/32f8f12f25ef4e54965300d58b5d47f1
Autor:
Alin Popescu, Marius Craina, Stelian Pantea, Catalin Pirvu, Veronica Daniela Chiriac, Iosif Marincu, Felix Bratosin, Iulia Bogdan, Samer Hosin, Cosmin Citu, Elena Bernad, Radu Neamtu, Catalin Dumitru, Adelina Geanina Mocanu, Claudiu Avram, Adrian Gluhovschi
Publikováno v:
Diagnostics, Vol 12, Iss 4, p 907 (2022)
The Pap test plays a significant role worldwide in the early diagnosis of and high curability rates for cervical cancer. However, the coronavirus disease 2019 (COVID-19) pandemic necessitated the use of multiple drastic measures to stop the spread of
Externí odkaz:
https://doaj.org/article/52ba0fa80a31423b8119be39bdf1a1bd
Autor:
Catalin Pirvu, Stelian Pantea, Alin Popescu, Mirela Loredana Grigoras, Felix Bratosin, Andrei Valceanu, Tudorel Mihoc, Vlad Dema, Mircea Selaru
Publikováno v:
Diagnostics, Vol 12, Iss 2, p 353 (2022)
Although inguinal hernia repair is one of the most common surgical procedures, finding a retroperitoneal structure, such as the ureter, is a rather rare occurrence. Ureteroinguinal hernias may arise in the presence or absence of obstructive uropathy,
Externí odkaz:
https://doaj.org/article/8b821632b33148f392ab30f41a840d3b
Autor:
Stoica Corneliu, Mihaela Burghiu, Emanuel Trandafir, Eliza Apostol, Alexandru Nica, Alexandru Pana, Raluca Balasa, Dumitru Curt, Sorin Defta, Elena Vajaiac, Catalin Pirvu
Publikováno v:
AIAA SCITECH 2023 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50033a902cfd9fd4ea277d12f1b0b325
https://doi.org/10.2514/6.2023-1017
https://doi.org/10.2514/6.2023-1017
Publikováno v:
22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Nano, Bio, Green and Space � Technologies For a Sustainable Future, VOL 22, ISSUE 6.2.
A designed protection system should not fail once or under a small number of hits. Tests to assess ballistic protection are expensive and numerous. The simulations support engineers in limiting the number and complexity of impact tests. This paper di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eca1a1d083de06634e0612d06a0c4af2
https://doi.org/10.5593/sgem2022v/6.2/s24.04
https://doi.org/10.5593/sgem2022v/6.2/s24.04
Publikováno v:
Transylvanian Review of Administrative Sciences, Vol 20, Iss 72, Pp 121-136 (2024)
This article aims to investigate the jurisprudence of the Constitutional Court regarding the public administration reform in Romania. We take into consideration the motivation of the public authorities involved in the law-making process, as well as t
Externí odkaz:
https://doaj.org/article/0973703ffa064888b9fb025f54799f8a
Publikováno v:
INCAS Bulletin, Vol 12, Iss 4, Pp 261-265 (2020)
Many re-entry bodies, even if they are debris or not, have nonlinear dynamic stability characteristics that produce oscillations in flight. The free-to-tumble techniques can be used to extract damping coefficient of specific body for planetary entry.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aab85ebd515d64ef42a8ee3a8cf53740
https://doi.org/10.13111/2066-8201.2020.12.4.24
https://doi.org/10.13111/2066-8201.2020.12.4.24