Results 41 to 50 of about 184,560 (262)

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Behavioral Modeling and Predistortion of Dual-Band Power Amplifiers

open access: yesIEEE Access
Dual-band power amplifiers (PAs) are essential components in modern wireless communication systems. Compared to single band PAs, dual-band PAs enable efficient utilization of spectrum resources with lower capital and operational expenses.
Majid Ahmed   +4 more
doaj   +1 more source

A 24/77 GHz Dual-Band Receiver for Automotive Radar Applications

open access: yesIEEE Access, 2019
A fully-integrated 24/77 GHz dual-band receiver is presented for automotive radar applications. The proposed receiver consists of a dual-band LNA, a dual-band sub-sampling PLL, and a wideband mixer, operating at 24 and 77 GHz alternatively.
Xiang Yi   +8 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

ANALISIS UNJUK KERJA MULTI BAND CELL PADA GSM DUAL BAND

open access: yesTechne, 2013
Hierarchical Cell Structure (HCS) merupakan aplikasi yang digunakan oleh provider pada jaringan GSM Dual Band dengan memprioritaskan band 1800 dalam pemilihan sel.
Budihardja Murtianta   +1 more
doaj  

Novel Sector Two-Dimensional Crest Factor Reduction Techniques for Performance Improvement in Dual-Band System

open access: yesIEEE Access, 2020
Currently, peak-to-average power ratio (PAPR) degrades the performance of the wireless system and has been widely studied in the orthogonal frequency division multiplexing (OFDM) systems.
Chen Changwei   +4 more
doaj   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

open access: yesFEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi   +6 more
wiley   +1 more source

Design of the Wide Dual-Band Rectangular Souvenir Dielectric Resonator Antenna

open access: yesIEEE Access, 2019
Design of the wide dual-band rectangular souvenir dielectric resonator antenna (DRA) is discussed. The proposed wide dual-band rectangular DRA was excited by using a U-slot.
Xiao Sheng Fang, Shuang Ming Chen
doaj   +1 more source

A Dual-Band Approach for Backscattering Modulation

open access: yes2024 IEEE International Conference on RFID Technology and Applications (RFID-TA)
In typical passive UHF RFID systems, tags rely on backscattering, where they modulate a reflected signal by switching impedance states, powered solely by the reader's RF signal. In contrast, active RFID tags offer enhanced communication capabilities but require an internal power source.
Sennesael, Joryan   +3 more
openaire   +2 more sources

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