This paper presents the design of a sub-threshold CMOS G,„-C low-pass filter in a portable ECG detection system. The proposed filter is formed by cascading 6 stages of identical l^'-order low-pass sections. With a minimum number of active components in the l^'-order section, the noise contribution of the circuit can be kept low while minimizing the size of transistors and capacitors. The filter...

Over the last number of years many different libraries of biorthogonal wavelets have been designed. In addition, the lifting scheme has been developed which unifies the design of biorthogonal wavelets using a simple approach. The lifting scheme allows the custom design of wavelets while maintaining the biorthogonal constraint on the filter bank. A drawback of the lifting scheme is that it does ...

In this paper, we introduce the Vector Rank M-type L (VRML)-filter to remove impulsive noise from color images and video sequences. The proposed filter uses the Median M-type (MM) and Ansari–Bradley– Siegel–Tukey M-type (AM) estimators into L-filter to provide robustness to proposed filtering scheme. We also introduce the use of impulsive noise detectors to improve the properties of noise suppr...

The K(+) channel-selectivity filter consists of two absolutely conserved glycine residues. Crystal structures show that the first glycine in the selectivity filter, Gly-77 in KcsA, is in a left-handed helical conformation. Although the left-handed helical conformation is not favorable for the naturally occurring L-amino acids, it is favorable for the chirally opposite D-amino acids. Here, we de...

the notion of absorbent ordered filters in implicative semigroupsis introduced, and its fuzzification is considered. relations among (fuzzy) orderedfilters, (fuzzy) absorbent ordered filters, and (fuzzy) positive implicativeordered filters are stated. the extensionproperty for (fuzzy) absorbent orderedfilters is established. conditions for (fuzzy) ordered filters to be (fuzzy)absorbent ordered ...

Although LCL filters are used widely in the grid connected inverters to reduce high-orderharmonics, such a system increases system order and therefore sustainable design of closed-loopcontroller system will be complicated. Recently, the single-loop control strategy has beensuggested for L or LC filter based grid-connected inverters. However, the use of single-loopcontrol directly in LCL filter-...

Grid connected inverters play a crucial role in generating energy to be fed to the grid. A filter is commonly used to suppress the switching frequency harmonics produced by the inverter, this being passive, and either an L- or LCL-filter. The latter is smaller in size compared to the L-filter. But choosing the optimal values of the LCL-filter is challenging due to resonance, which can affect st...

tion in nmol/L and x is the year of collection). In the autoclaved cards, 17-OHP concentrations were 27.3% lower than in the native cards: median (25th–75th percentiles), 5.6 (3.6–8.9) nmol/L vs 7.7 (5.3–11.1) nmol/L; P 0.001. Thus, 17-OHP in dried blood spots on autoclaved or native filter-paper cards decreased 2–3% annually, and the decrease was significant on native cards but not on autoclav...

Different flame efficiency function (wrinkling factor) models are compared and tested for the Cambridge stratified using Large Eddy Simulations (LES) with an artificially thickened approach. numerical discretisations definitions of outer cut-off length tested, as different practices exist that can have a strong impact on results. The experiment is chosen since it exhibits Reynolds number more t...