Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Lizal Frantisek"'
Publikováno v:
EPJ Web of Conferences, Vol 299, p 01002 (2024)
Inhalation of fibers has been a health concern for several decades. Although the use of some fibers, such as asbestos, was banned altogether in many countries, global demand for other fibers, such as man-made vitreous or carbon fibers, increases ever
Externí odkaz:
https://doaj.org/article/543ec8b9cff246b588a47686468bc1ee
Autor:
Lizal Frantisek, Cabalka Matouš, Malý Milan, Bělka Miloslav, Mišík Ondrej, Jedelský Jan, Jícha Miroslav
Publikováno v:
EPJ Web of Conferences, Vol 299, p 01022 (2024)
Prediction of the fate of inhaled fibres in human airways represents a significant challenge in comparison with spherical particles. There are several ways of computation ranging from a simplified approach assuming equivalent spheres with empirical c
Externí odkaz:
https://doaj.org/article/89043f48ba284d41b379f84e9f938d2e
Publikováno v:
EPJ Web of Conferences, Vol 299, p 01009 (2024)
The development of the human airways continues even after birth. During childhood, not only does the shape of the upper airway change, but also the way we inhale. The development of human upper airways and the mouth cavity stops at the age of five an
Externí odkaz:
https://doaj.org/article/b80c37abcd414aa396f946584bc1ed3c
Publikováno v:
EPJ Web of Conferences, Vol 299, p 01029 (2024)
Nebulizers are medical devices for inhalation treatment that create an aerosol from liquid drug formulation. The efficacy of the treatment is dependent on the particle size distribution (PSD) of generated aerosol. PSD can be influenced by the inhalat
Externí odkaz:
https://doaj.org/article/b8a5ef1a71a9450ab9acaec5764538f6
Publikováno v:
EPJ Web of Conferences, Vol 269, p 01038 (2022)
Respimat soft mist inhaler (SMI) is an inhaler producing a soft mist with low velocity. The liquid drug solution is emitted by the mechanical energy of compressed spring, so the device is propellant-free. This paper describes the measurement of parti
Externí odkaz:
https://doaj.org/article/5a840648a9f14e94a44a074f940b55a6
Autor:
Lizal Frantisek, Maly Milan, Cabalka Matous, Lizalova Sujanska Elena, Farkas Arpad, Starha Pavel, Kedajova Kristyna, Misik Ondrej, Pech Ondrej, Jedelsky Jan, Jicha Miroslav
Publikováno v:
EPJ Web of Conferences, Vol 269, p 01034 (2022)
Inhaled fibres can potentially cause inflammation of the lung tissue and interstitium which, after long-term exposure, may lead to lung cancer, malignant mesothelioma or pulmonary and pleural fibrosis. For risk reduction and correct setting of occupa
Externí odkaz:
https://doaj.org/article/d1acb9d17b934d9eb204086121fe73eb
Publikováno v:
EPJ Web of Conferences, Vol 269, p 01067 (2022)
The nature of fibre motion is much more complex than the motion of spherical particles. A complex model must be used for tracking of the fibre carried by the flow. The model must take into account the orientation of the fibre against the flow and sol
Externí odkaz:
https://doaj.org/article/300736848de9466c9f4daab6d30d4b50
Publikováno v:
EPJ Web of Conferences, Vol 269, p 01056 (2022)
Computational fluid dynamics (CFD) was used to investigate new ways of air conditioning of a car cabin during summer conditions. Three different schemes of ventilation were considered: classical mixing ventilation (dashboard vents), large-area ceilin
Externí odkaz:
https://doaj.org/article/6cf5b2c91ca34cd69ac4b038d956ad2e
Autor:
Belka Miloslav, Maly Milan, Cejpek Ondrej, Elcner Jakub, Lizal Frantisek, Jedelsky Jan, Jicha Miroslav
Publikováno v:
EPJ Web of Conferences, Vol 264, p 01003 (2022)
Both pulmonary airway geometry and breathing pattern evolve from birth to adulthood. These gradual changes significantly influence airflow dynamics and subsequently particle transport and deposition. Regarding the airway structure, the differences be
Externí odkaz:
https://doaj.org/article/6e6e128745894b99b1c48617254b83e1
Publikováno v:
MATEC Web of Conferences, Vol 328, p 01005 (2020)
The ability to precisely predict the fate of inhaled fibres is important for toxicologists as well as for pharmaceutists struggling to utilize fibres as carriers of a medication. However, the complexity of fibre movement in human airways still repres
Externí odkaz:
https://doaj.org/article/45e58daa93e14eaa98a199663c137645