Zobrazeno 1 - 10
of 125
pro vyhledávání: '"P. Piksa"'
Publikováno v:
Radioengineering, Vol 22, Iss 4, Pp 1288-1295 (2013)
The design, performance and operation of the high resolution microwave spectrometer are described. The spectrometer is based on the Fabry-Perot resonator supplemented by a pulsed supersonic nozzle for adiabatic cooling of the sample. The spectrometer
Externí odkaz:
https://doaj.org/article/e8a3cadd770a47a69cb2346af3b63d89
Publikováno v:
Radioengineering, Vol 21, Iss 1, Pp 459-463 (2012)
Due to the thermal expansivity of the material used in the Fabry-Perot resonator mirrors, the resonator cavity length can change and this might therefore have an impact on the resonant frequency during high-resolution spectroscopy measurements. Based
Externí odkaz:
https://doaj.org/article/16c2fde9a8664fe19d0e508b91a632cc
Publikováno v:
Radioengineering, Vol 20, Iss 1, Pp 270-275 (2011)
Dielectric lenses can substantially improve antenna parameters, especially the planarity of radiated waves and the antenna gain. The paper deals with their application in millimeter-wave band. The main goal concerns the introduction of characteristic
Externí odkaz:
https://doaj.org/article/aa9e52da5eaa4bdf84af9780a6cc92d9
Publikováno v:
Radioengineering, Vol 15, Iss 4, Pp 34-37 (2006)
Small shielded boxes are nowadays widely used for measurement of EMS, EMI and sensitivity properties of different devices. This paper deals with an improvement of commercial small shielded box parameters for a measurement of sensitivity of small mobi
Externí odkaz:
https://doaj.org/article/85d2b8c4901b486ba91f7bcdd5aff1e8
Autor:
M. Mazanek, P. Piksa
Publikováno v:
Radioengineering, Vol 15, Iss 3, Pp 15-19 (2006)
This paper describes a design of the Self- Complementary Spiral Antenna (SCSA) which consists of a spiral antenna and a wideband impedance transformer. The spiral antenna and the transformer are designed separately due to computing demands. New knowl
Externí odkaz:
https://doaj.org/article/4f9b14aa7910457199f8464bf04499f7
Autor:
Michal Piksa, Karolina Noworyta, Aleksander Gundersen, Jonas Kunst, Mikolaj Morzy, Jan Piasecki, Rafal Rygula
Publikováno v:
Frontiers in Public Health, Vol 12 (2024)
IntroductionIn the current digital age, the proliferation of misinformation presents a formidable challenge to a democratic society. False narratives surrounding vaccination efforts pose a significant public health risk. Understanding the role of cog
Externí odkaz:
https://doaj.org/article/ccb0caad44544b4cb3300e8fa3a2b187
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2008 (2008)
The atmosphere and rainfall significantly limit the performance of millimeter wave links and this has to be taken into account, particularly, during planning of high altitude platform (HAP) networks. This paper presents results from the measurement a
Externí odkaz:
https://doaj.org/article/b0e5cbb9b87b4d4ebe96d7f6e6f68740
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract This study evaluated the effect of quercetin (Q) added to feed mixtures, at concentrations directly optimized for the peroxidability of dietary rapeseed (RO) and flaxseed oil (FLO), on performance and selected biomarkers of oxidative stress
Externí odkaz:
https://doaj.org/article/7135fd73e4a3493493527c0fa52f738a
Autor:
Marta Piksa, Wojciech Fortuna, Cheng Lian, Małgorzata Gacka, Ifor D. W. Samuel, Katarzyna Matczyszyn, Krzysztof J. Pawlik
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract We evaluate the efficacy of antimicrobial Photodynamic Therapy (APDT) for inactivating a variety of antibiotic-resistant clinical strains from diabetic foot ulcers. Here we are focused on APDT based on organic light-emitting diodes (OLED). T
Externí odkaz:
https://doaj.org/article/e5d36dc0dc0e4feca598372578b596ff
Publikováno v:
European Psychiatry, Vol 67, Pp S380-S380 (2024)
Introduction Alzheimer’s disease is characterized by the presence of β-amyloid deposits in senile plaques and brain vessels. β-amyloid stimulates the glial release of proinflammatory cytokines, reactive oxygen species (ROS), or nitric oxide (NO),
Externí odkaz:
https://doaj.org/article/fb5c55c30d594e9197b0852088a0f0b6