Results 21 to 30 of about 6,424,880 (277)
Increasing the Quality Factor (Q) of 1D Photonic Crystal Cavity with an End Loop-Mirror
Photonics, 2021 Increasing the quality factor (Q-factor) of an optical resonator device has been a research focus utilized in various applications. Higher Q-factor means light is confined in a longer time which will produce a sharper peak and higher transmission.
Mohamad Hazwan Haron +2 more
doaj +1 more source
Bulletin of the Mineral Research and Exploration, 2021 Seismic wave propagation in subsurface media endures from absorption, which can be evaluated by the seismic quality factor Q (Q-factor). Absorption is frequency-dependent.
Muammer Tün
doaj +1 more source
A review on future planar transmission line
Cogent Engineering, 2016 Substrate Integrated Waveguide (SIW) is an emerging trend in planar technology. The SIW structure consists of two rows of conducting cylinders in a dielectric substrate.
Ashok Kumar +2 more
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Glass Penetrating Transparent Surface with Square Loop/Cross Double-Layer FSS for Indoor Millimeter-Wave Communications [PDF]
Journal of Electromagnetic Engineering and ScienceIn this study, a glass penetrating transparent surface (GPTS) featuring a transparent frequency selective surface on window glass is proposed for indoor millimeter-wave communications.
Thinh Tien Nguyen, Chang Won Jung
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Effect of Electrode Thickness on Quality Factor of Ring Electrode QCM Sensor
Sensors, 2022 As a key type of sensor, the quartz crystal microbalance (QCM) has been widely used in many research areas. Recently, the ring electrode QCM sensor (R-QCM) with more uniform mass sensitivity has been reported.
Zhenfang Wei +3 more
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Q investment models, factor complementary and monopolistic competition [PDF]
, 1991 The observed fact that firms invest even if capacities are not fully employed does not fit well into most standard formalizations of optimal firm behavior.
Licandro, Omar
core +1 more source
Известия высших учебных заведений России: Радиоэлектроника, 2018 The limiting characteristics of electrically small-sized loop antenna matching by means of non-Foster's negative inductance are studied. Various options for including negative inductance in frame antenna structure are considered.
A. A. Golovkov, E. I. Mozhaeva
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Scientific Reports, 2022 The quality factor (Q-factor) is an important parameter for mechanical resonant sensors, and the optimal values depend on its application. Therefore, Q-factor control is essential for microelectromechanical systems (MEMS).
Naoki Inomata, Yuka Tonsho, Takahito Ono
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Micromachines, 2021 For the axisymmetric shell resonator gyroscopes, the quality factor (Q factor) of the resonator is one of the core parameters limiting their performances.
Libin Zeng +5 more
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On the q-factorization of power series
The Ramanujan JournalAny power series with unit constant term can be factored into an infinite product of the form $\prod_{n\geq 1} (1-q^n)^{-a_n}$. We give direct formulas for the exponents $a_n$ in terms of the coefficients of the power series, and vice versa, as sums over partitions. As examples, we prove identities for certain partition enumeration functions.
Schneider, Robert +2 more
openaire +3 more sources