Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Petr Kadlec"'
Publikováno v:
Polymers, Vol 16, Iss 14, p 2026 (2024)
The degradation of electrical insulating materials has been a subject of interest for decades as they are commonly applied in many fields of electrical engineering. Suitably modeling such a process is important since the known and well-described degr
Externí odkaz:
https://doaj.org/article/07eb2ce65a6e4ba699fee736506fec11
Autor:
Petr Kadlec
Publikováno v:
IEEE Access, Vol 10, Pp 100104-100112 (2022)
Unique identification of goods and products is an integral part of today’s automated world. Conventional optical systems cannot be operated in environments of poor visibility. The radio–frequency identification systems require expensive developme
Externí odkaz:
https://doaj.org/article/fb426e4811744d7e845c5d349b0d55e7
Autor:
Petr Kadlec
Publikováno v:
Acta Universitatis Carolinae: Historia Universitatis Carolinae Pragensis, Vol 61, Iss 1, Pp 37-59 (2022)
This study deals with statistics describing Austrian schools and education in 1828–1915. The potential of this source has so far been used by researchers only most sporadically. The text presents the development of key statistical series, their con
Externí odkaz:
https://doaj.org/article/bde4f3a7f17e47898a408b1f260f073d
Publikováno v:
IEEE Access, Vol 10, Pp 9677-9685 (2022)
Two efficient methodologies for the determination of electromagnetic (EM) constitutive properties of scalar metasurfaces are introduced and discussed. In contrast to the available methods, and in line with the recent increasing interest in time-domai
Externí odkaz:
https://doaj.org/article/7f901db02d1844b29af71f3e1eb70d3d
Autor:
Petr Kadlec
Publikováno v:
Algorithms, Vol 16, Iss 6, p 307 (2023)
This paper aims to solve the space robot pathfinding problem, formulated as a multi-objective (MO) optimization problem with a variable number of dimensions (VND). This formulation enables the search and comparison of potential solutions with differe
Externí odkaz:
https://doaj.org/article/6b8f252e30dd471181c8b04e67b44e4d
Publikováno v:
IEEE Access, Vol 9, Pp 122216-122227 (2021)
In this paper, linearly and circularly polarized single-layer Substrate Integrated Waveguide (SIW) horn antennas with nearly equal half power beamwidths in principal planes for the 24 GHz ISM band are designed. The uniqueness of the solution lies in
Externí odkaz:
https://doaj.org/article/c5f4144d89b24986b4fde0ae8d6fa52c
Autor:
Petr KADLEC, Radek POLANSKÝ
Publikováno v:
Acta Electrotechnica et Informatica, Vol 18, Iss 4, Pp 32-39 (2019)
This paper deals with the evaluation of the amount of filler influence and the ultraviolet (UV) radiation influence on selected dielectric properties of the innovative type of composites. These composites consist of a linear low-density polyethylene
Externí odkaz:
https://doaj.org/article/6c2bbbf12aee424988057832ce656060
Publikováno v:
Nanomaterials, Vol 12, Iss 9, p 1594 (2022)
Four different graphene-based temperature sensors were prepared, and their temperature and humidity dependences were tested. Sensor active layers prepared from reduced graphene oxide (rGO) and graphene nanoplatelets (Gnp) were deposited on the substr
Externí odkaz:
https://doaj.org/article/ce37bf7d9cff487787da4add280beddd
Publikováno v:
Polymers, Vol 13, Iss 21, p 3702 (2021)
The present study is a focused and comprehensive analysis of the dielectric and thermal properties of twenty-four 3D printed polymers suitable for fused filament fabrication (FFF) in electronic applications. The selected polymers include various ther
Externí odkaz:
https://doaj.org/article/63fd3960f72f48158f3ecd1e43740196
Publikováno v:
Polymers, Vol 12, Iss 9, p 1881 (2020)
At present, the most commonly used electrical insulating materials, including cold-curing epoxy resins, are well designed for normal operating conditions. However, new generations of materials should also be capable of withstanding extreme emergency
Externí odkaz:
https://doaj.org/article/7636524498654879b5ae159feb7fc8f4