Zobrazeno 1 - 10
of 165
pro vyhledávání: '"Slawomir Kozieł"'
Autor:
Marek Kociuba, Zofia Ignasiak, Andrzej Rokita, Ireneusz Cichy, Andrzej Dudkowski, Marcin Ściślak, Katarzyna Kochan, Anna Sebastjan, Anna Spinek, Daria Lorek, Barry Bogin, Raja Chakraborty, Slawomir Kozieł
Publikováno v:
Anthropological Review, Vol 85, Iss 4, Pp 83-94 (2023)
The aim of the present exploratory study was to assess the changes in urinary oxytocin (OT) concentration during the period between five days before, and on the day of match, among rugby and handball players. Nine male rugby players with a mean age o
Externí odkaz:
https://doaj.org/article/0349a83c86be4e3aa25f08c31e515cab
Computer-aided full-wave electromagnetic (EM) analysis has been used in microwave engineering for the past decade. Initially, its main application area was design verification. Today, EM-simulation-driven optimization and design closure become increa
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract A conformal reflective metasurface fed by a dual-band multiple-input multiple-output (MIMO) antenna is proposed for low-cost beam steering applications in 5G Millimeter-wave frequency bands. The beam steering is accomplished by selecting a s
Externí odkaz:
https://doaj.org/article/60c6be9eed0440929124abeb1adbf97f
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-21 (2024)
Abstract In modern times, antenna design has become more demanding than ever. The escalating requirements for performance and functionality drive the development of intricately structured antennas, where parameters must be meticulously adjusted to ac
Externí odkaz:
https://doaj.org/article/0e253d361ab84ba0bf95a7ca02c1a58b
Autor:
Shahid Khan, Owais Khan, Syed Ahson Ali Shah, Bilal Tariq Malik, Neelam Gohar, Slawomir Koziel
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-21 (2024)
Abstract Ultra-wideband (UWB) technology is extensively used in indoor navigation, medical applications, and Internet of Things devices due to its low power consumption and resilience against multipath fading and losses. This paper examines a multipl
Externí odkaz:
https://doaj.org/article/b6d59a46edb7466781f9d7831d80dfeb
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-19 (2024)
Abstract Achieving compact size has emerged as a key consideration in modern microwave design. While structural miniaturization can be accomplished through judicious circuit architecture selection, precise parameter tuning is equally vital to minimiz
Externí odkaz:
https://doaj.org/article/f7ba5fff4f374d4cb84a996f5f95da38
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract In this study, a high-isolation dual-band (28/38 GHz) multiple-input–multiple-output (MIMO) antenna for 5G millimeter-wave indoor applications is presented. The antenna consists of two interconnected patches. The primary patch is connected
Externí odkaz:
https://doaj.org/article/6a0c40e3e9384adabba09ded19a7355c
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-19 (2024)
Abstract Behavioral models have garnered significant interest in the realm of high-frequency electronics. Their primary function is to substitute costly computational tools, notably electromagnetic (EM) analysis, for repetitive evaluations of the str
Externí odkaz:
https://doaj.org/article/671fcd7b018c404da2a181531b5f6994
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract In order to increase the radiation performance of aperture-type antennas, this paper demonstrates a low-profile, planar, single-layer, three-dimensional (3-D) printable metastructure. The proposed hybridized metastructure is highly transpare
Externí odkaz:
https://doaj.org/article/57dfa4e6a14e4191a97fbe015f32b6d4
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024)
Abstract The incorporation of higher-order modes (HOMs) can substantially augment the antenna gain and bandwidth, but this improvement is typically accompanied by compromised radiation performance including radiation nulls and higher side lobe levels
Externí odkaz:
https://doaj.org/article/9090ba7fb1d44261a3c1c682375f0b2d