Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Leonhard M. Reindl"'
Publikováno v:
Journal of Advanced Dielectrics, Vol 13, Iss 04 (2023)
The theory and application of resonances and vibrational modes are part of the foundation of science. In this contribution, examples of acoustical resonators are highlighted, and compared to electromagnetic modes. As an example from architecture, we
Externí odkaz:
https://doaj.org/article/09a850fff11547ce9287f8b295491a86
Autor:
Leonhard M. Reindl, Taimur Aftab, Gunnar Gidion, Thomas Ostertag, Wei Luo, Stefan Johann Rupitsch
Publikováno v:
Sensors, Vol 24, Iss 4, p 1323 (2024)
Resonators are passive time-invariant components that do not produce a frequency shift. However, they respond to an excitation signal close to resonance with an oscillation at their natural frequencies with exponentially decreasing amplitudes. If res
Externí odkaz:
https://doaj.org/article/2b09130e3a27451d8df4d568e4896bd0
Publikováno v:
Sensors, Vol 23, Iss 15, p 6771 (2023)
Good feature engineering is a prerequisite for accurate classification, especially in challenging scenarios such as detecting the breathing of living persons trapped under building rubble using bioradar. Unlike monitoring patients’ breathing throug
Externí odkaz:
https://doaj.org/article/9a6faa8337f140bdbea7b9cabd1d7926
Publikováno v:
Sensors, Vol 23, Iss 4, p 2043 (2023)
Hydrogen-based technologies provide a potential route to more climate-friendly mobility in the automotive and aviation industries. High-pressure tanks consisting of carbon-fiber-reinforced polymers (CFRPs) are exploited for the storage of compressed
Externí odkaz:
https://doaj.org/article/2821d31d80b942289d47ae7ce23559e7
Publikováno v:
Sensors, Vol 23, Iss 3, p 1335 (2023)
Radars can be used as sensors to detect the breathing of victims trapped under layers of building materials in catastrophes like earthquakes or gas explosions. In this contribution, we present the implementation of a novel frequency comb continuous w
Externí odkaz:
https://doaj.org/article/8404b31875af425a9ad0c7f5738bdeec
Publikováno v:
Sensors, Vol 21, Iss 13, p 4599 (2021)
DC/DC converters are the essential component of power management in applications such as self-powered systems. Their simulation plays an important role in the configuration, analysis and design. A major drawback is the lack of behavioral models for D
Externí odkaz:
https://doaj.org/article/0ef9b30bb47d471ebf3bc2f935d76b17
Publikováno v:
Sensors, Vol 21, Iss 6, p 1930 (2021)
An electrically small patch antenna with a low-cost high-permittivity ceramic substrate material for use in a ground-penetrating radar is proposed in this work. The antenna is based on a commercial ceramic 915 MHz patch antenna with a size of 25 × 2
Externí odkaz:
https://doaj.org/article/a261102b45ff429a9f0b76e7f0b0a96a
Publikováno v:
Sensors, Vol 12, Iss 10, Pp 13636-13663 (2012)
This work presents the optimization of antenna captured low power radio frequency (RF) to direct current (DC) power converters using Schottky diodes for powering remote wireless sensors. Linearized models using scattering parameters show that an ante
Externí odkaz:
https://doaj.org/article/1c72f7921fb6441b8576b8e1cb2fafd2
Publikováno v:
Sensors, Vol 18, Iss 1, p 259 (2018)
In self-powered microsystems, a power management is essential to extract, transfer and regulate power from energy harvesting sources to loads such as sensors. The challenge is to consider all of the different structures and components available and b
Externí odkaz:
https://doaj.org/article/b63ca9cf234343529b8dfd8f7d6c74ad
Publikováno v:
Sensors, Vol 17, Iss 9, p 1961 (2017)
Small scale fading signals resulting from multipath propagation can cause signal strength variations in the range of several dB. Resulting from the fluctuating signal strengths, the wake-up packet reception rate can decrease significantly. Using ante
Externí odkaz:
https://doaj.org/article/615b86f0bf4449409754163987fbc57e