Results 21 to 30 of about 90,892 (261)
The Mass Gap of the Space‐time and its Shape
Fortschritte der Physik, 2022 AbstractSnyder's quantum space‐time which is Lorentz invariant is investigated. It is found that the quanta of space‐time have a positive mass that is interpreted as a positive real mass gap of space‐time. This mass gap is related to the minimal length of measurement which is provided by Snyder's algebra.
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Space Matters? Exploring Gender Differentials in the Age at Marriage, Greece (1980–2017)
Social Sciences, 2020 Although local context is considered a key factor shaping differences in the age at marriage between spouses, spatially explicit investigations of the gender gap in marriage timing were scarce in Europe, especially in more traditional societies.
Kostas Rontos, Luca Salvati
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Formation of Banded Chorus Waves by Propagation From Multiple Sources
Geophysical Research Letters, 2023 Chorus waves are electromagnetic emissions in the magnetosphere and play a crucial role in energetic electron dynamics. Observations show that these waves often exhibit a two‐band structure with a power gap near half the electron cyclotron frequency ...
Xin Tao
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Robust Controller Analysis and Design of Medical Haptic Control System [PDF]
Engineering and Technology Journal, 2017 Haptic interfaces for medial simulation prove to be especially useful for training in minimally invasive procedures. In this research, a framework that consists of relevant representation of operator and environment dynamic of a tele-manipulated haptic ...
S.M. Raafat, H.A. Ali
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Global Health Research and Policy, 2023 The COVID-19 pandemic has exacerbated health inequities among countries in the Global South with limited access to essential medical products, leading to a higher infection and mortality rate, especially among vulnerable populations.
Jian Yang +7 more
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The Impacts of Weighting Functions on the Robust Performance of a Multi-Axial Piezoelectric Stage
International Journal of Automation and Smart Technology, 2013 This paper applies robust control strategies to a piezoelectric transducer (PZT) stage, and investigates the influences of weighting functions on the system performance.
Fu-Cheng Wang, Ru-Chang Wu
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Performance of probabilistic amplitude shaping with BICM‐ID
Electronics Letters, 2021 It is numerically shown that bit error rate (BER) performance of probabilistic amplitude shaping (PAS) applying a bit‐to‐symbol mapping of non‐Gray natural binary code assigned to 64‐quadrature amplitude modulation is significantly improved by bit ...
Akira Naka
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How Party Systems Shape Local–National Gender Gaps [PDF]
Government and Opposition, 2017 Women’s representation is highest in local assemblies in some countries, while others display the largest share of female office-holders at the national level. Drawing on a new data set mapping the representation of women at all four levels of government in Germany during the 2000s, we argue that differences in party system configurations across ...
Jessica Fortin-Rittberger +3 more
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A Gap Waveguide-Based Compact Rectangular Waveguide to a Packaged Microstrip Inline Transition
Applied Sciences, 2020 In this paper two different simple to design and easy to manufacturing transitions from a microstrip to rectangular waveguide based on ridge and groove gap waveguides are studied.
José M. Pérez-Escudero +3 more
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Torque Ripples Reduction and Performance Analysis of Electrically Excited Flux Switching Motor
IEEE Access, 2022 Torque ripples cause acoustic noise, fluctuation in speed, vibration, and reduce lifetime of the motor. The double salient structure of Flux Switching Motor (FSM) has a high air-gap permeance variation that produces high torque ripples.
Bakhtiar Khan +4 more
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