Results 81 to 90 of about 3,468,397 (305)
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
High-CMRR CMOS current output stage
Electronics Letters, 2003 A novel current-mode output stage is presented which achieves high CMRR owing to an auxiliary high-gain feedback loop. Compared to the traditional solution, an approximately doubled transconductance is also obtained. SPICE simulations using the model parameters of a 0.8 µm CMOS process are found in remarkable agreement with expected results.
CENTURELLI, Francesco +2 more
openaire +1 more source
FEBS Letters, EarlyView.This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel +13 more
wiley +1 more source
A high step-up double-dual-boost converter with continuous output current
e-Prime: Advances in Electrical Engineering, Electronics and EnergyAlthough recently proposed double-dual-boost (DDB) DC-DC converters can be used in various applications, they are unable to achieve a higher voltage gain than the conventional DDB converter and typically suffer from a discontinuous output current.
Mohammad Lotfi-Nejad +4 more
doaj +1 more source
A Sinusoidal Current Driver With an Extended Frequency Range and Multifrequency Operation for Bioimpedance Applications [PDF]
, 2014 This paper describes an alternative sinusoidal current driver suitable for bioimpedance applications where high frequency operation is required. The circuit is based on a transconductor and provides current outputs with low phase error for frequencies ...
Demosthenous, A +2 more
core +1 more source
Diversity and complexity in neural organoids
FEBS Letters, EarlyView.Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley +1 more source
Fuel Cell Output Current Prediction with a Hybrid Intelligent System
Complexity, 2019 A fuel cell is a complex system, which produces electricity through an electrochemical reaction. For the formal application of control strategies on a fuel cell, it is very important to have a precise dynamic model of it.
José-Luis Casteleiro-Roca +4 more
doaj +1 more source
Parametric measurements on a doped CO2TEA laser [PDF]
, 1980 Parametric measurements have been performed on a CO2TEA laser with a discharge volume of 6.5 × 6.5 × 45 cm3. The effect of a low ionization seed gas, tri-n-propylamine, upon amplification, power output and voltage-current characteristics has been ...
Reits, B.J.
core +2 more sources
pH‐mediated activation of the lysosomal arginine sensor SLC38A9
FEBS Letters, EarlyView.Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley +1 more source