Results 81 to 90 of about 1,605,535 (250)
Precise Measurement of Complex Coefficient Filters by Using Square Waves†
IEEJ Transactions on Electrical and Electronic Engineering, Volume 20, Issue 12, Page 2027-2033, December 2025.Usually, the frequency characteristics of the complex filter can be examined by applying a pair of quadrature sinusoidal waves (cosωt$$ \cos \omega t $$ and sinωt$$ \sin \omega t $$) to a FUT (filter under test). While this method is recognized for its accuracy, it requires two sinusoidal test signals with tightly matched amplitudes and a strict 90°$$ {
Kazuhiro Shouno +2 more
wiley +1 more source
Switchable Bandpass/Bandstop Filter Using Liquid Metal Alloy as Fluidic Switch
Sensors, 2019 In this paper, we propose a switchable band-pass/band-stop filter using liquid metal alloy as a fluidic switch. The filter is designed based on the Chebyshev response and implemented using a three-stage quarter-wavelength resonant structure.
Eiyong Park, Minjae Lee, Sungjoon Lim
doaj +1 more source
IEEJ Transactions on Electrical and Electronic Engineering, Volume 20, Issue 12, Page 2090-2099, December 2025.A modulated light irradiation method is proposed for estimating the working voltage of a target cell in a photovoltaic (PV) module without electrical contacts. However, the proposed method requires a 32‐turn coil inserted into a PV module output in series to boost the sensitivity of an alternating current (AC) clamp sensor with low sensitivity, making ...
Yasuyuki Kobayashi +2 more
wiley +1 more source
Climate Change Likely to Intensify Storm‐Driven Compound Flooding in an Exemplar UK Estuary
Earth's Future, Volume 13, Issue 12, December 2025.Abstract Flood protection authorities are not prepared for compound flood risk in estuaries—now and in the face of climate change. Climate projections are rarely downscaled appropriately to assess future changes in storm surge and concurrent river discharge extremes, and their interactions to exacerbate flooding.
Charlotte Lyddon +7 more
wiley +1 more source
The Novel Microwave Stop-Band Filter
Active and Passive Electronic Components, 2008 The stop-band filter with the new band-rejection element is proposed. The element is a coaxial waveguide with the slot in the centre conductor. In the frame of this research, the numerical and experimental investigations of the amplitude-frequency ...
R. E. Chernobrovkin +4 more
doaj +1 more source
Earth and Space Science, Volume 12, Issue 12, December 2025.Abstract A mathematical and numerical framework is developed for modeling Earth's magnetic field and optimizing the trajectory of the whole system using geomagnetic observations. The conventional approach is adopted to model Earth's magnetic field in the source‐free region via the Gauss coefficient, for which the fast dynamical component for the mantle‐
Kuan Li
wiley +1 more source
Microstructure and hydration of interstitial in clinkers produced over molten steel
Journal of the American Ceramic Society, Volume 108, Issue 12, December 2025.Abstract Scalable electrical production of clinker is possible under reducing conditions, and the reactivity of C3A produced in such conditions has only been superficially described. We examined electric clinkers made over molten steel with a range of fineness and compared them against commercial clinkers.
Shiju Joseph +3 more
wiley +1 more source
Analog MOS integrated circuits [PDF]
The goal was to design single-chip lowpass filters with constant group delay in the pass band and 60 dB minimum attenuation in the stop band. The desired 3 dB frequencies are (in Hertz) 2.5, 5, 10, 20, 40, 80, 160, and 320.
Temes, Gabor C.
core +1 more source
Variable Bandwidth Filter for Multibeam Echo-sounding Bottom Detection [PDF]
, 2004 The accuracy of a seafloor map derived from multibeam swath bathymetry depends first and foremost on the quality of the bottom detection process that yields estimates of the arrival time and angle of bottom echoes received in each beam. Filtering of each
de Moustier, Christian +1 more
core +1 more source
COMPUTATIONAL ANALYSIS OF BUTTERWORTH AND CHEBYSHEV-I FILTERS USING BILINEAR TRANSFORMATION
, 2022 Santosh Kumar Singh +6 more
openalex +2 more sources