Results 51 to 60 of about 471,152 (307)
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
A mine-used DC chopper test platform based on energy self-circulation mode
Gong-kuang zidonghua, 2019 For problems of large ripple of power supply, difficult selection of high-power load, low test efficiency and high test energy consumption existed in existing DC chopper test platform, a mine-used DC chopper test platform based on energy self-circulation
ZHANG Song +4 more
doaj +1 more source
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
IET Power Electronics, 2023 This paper develops a railway power module with wide range voltage (dc 60—dc 160 V) input and constant voltage output (24 V/10 A) . The power module adopts a two‐stage topology structure to realize voltage conversion.
Guowang Liu, Honglin Ouyang, Muxuan Xiao
doaj +1 more source
Modulated voltage metastable ionization detector [PDF]
, 1985 The output current from a metastable ionization detector (MID) is applied to a modulation voltage circuit. An adjustment is made to balance out the background current, and an output current, above background, is applied to an input of a strip chart ...
Carle, G. C. +2 more
core +1 more source
Constant Switching Frequency Self-Oscillating Controlled Class-D Amplifiers [PDF]
, 2014 The self-oscillating control approach has been used extensively in class-D amplifiers. It has several advantages such as high bandwidth and high audio performance.
Andersen, Michael A. E. +2 more
core +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +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
Maximum Efficiency Tracking for Dynamic WPT System Based on Optimal Input Voltage Matching
IEEE Access, 2020 Wireless power transfer (WPT) technology has drawn much attention due to its advantages such as safety, convenience, and non-contact. For some movable devices such as intelligent inspection robot, the constant output voltage is very important to ensure ...
Hao He +6 more
doaj +1 more source
Logarithmic circuit with wide dynamic range [PDF]
, 1978 A circuit deriving an output voltage that is proportional to the logarithm of a dc input voltage susceptible to wide variations in amplitude includes a constant current source which forward biases a diode so that the diode operates in the exponential ...
Manus, E. A., Wiley, P. H.
core +1 more source