Results 101 to 110 of about 36,496 (304)
5-Bit RF MEMS Phase Shifter Development in Ku Band for Phased Array Applications [PDF]
, 2013 MEMS based devices represent an extremely attractive alternative to MESFET devices for realization of the programmable phase shifters. The stable operation of RF MEMS devices is impacted by the actuation voltage, restoration force and the structural ...
Sharma, A K
core +1 more source
Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells
FEBS Letters, EarlyView.Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López +2 more
wiley +1 more source
The Faraday Quantum Clock and Non-local Photon Pair Correlations [PDF]
, 1999 We study the use of the Faraday effect as a quantum clock for measuring traversal times of evanescent photons through magneto-refractive structures. The Faraday effect acts both as a phase-shifter and as a filter for circular polarizations.
A. Aspect +20 more
core +3 more sources
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Synthesis of the phase shifter for complex signal
Известия высших учебных заведений России: Радиоэлектроника, 2015 It is proposed algorithm for construction of the phase shifter for complex signal, which gives any but constant the phase shift for square component in given range of the frequency.
S. I. Ziatdinov
doaj
IEEE AccessThis paper presents the self-body-biasing effects of a vector-sum phase shifter(VSPS) in 0.13- $\mu $ m CMOS technology. The self-body-biasing network is simply implemented by connecting the drain and body terminals of a vector-sum MOSFET amplifier ...
Junhan Lim +2 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
Design of 90 degree-switched-line Phase Shifter with Constant Phase Shift Using CRLH TL [PDF]
, 2014 The design of a 90 degree-switched-line phase shifter using composite right/left handed transmission line (CRLH TL) is presented in this paper. To achieve a relatively constant phase shift over a large bandwidth, a CRLH TL implemented using lumped ...
Cheung, SW, Zhang, J
core
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
Wide-band variable transversal phase-shifter [PDF]
, 2003 We present a novel broadband phase-shifter based on a transversal filter configuration. This approach allows flexible control of the amplitude response while providing continuous variation of a linear phase slope. Numerical examples, both ideal and using
Bui, L, Chio, T, Mitchell, A, Slade, W
core