Results 71 to 80 of about 17,645,441 (296)

Modelling approaches for DC-DC converters with switched capacitors

, 2015
In this paper we review relevant problems in the modelling of DC-DC converters with switched capacitors. We study several approaches that overcome the exposed modelling difficulties, addressing ideal and nonideal cases and using dynamic equations that ...
Rapisarda, P., Rosas Caro, J.C., Mayo Maldonado, J.C.   +2 more
core   +1 more source

Pre-Processing-Based Walsh Code With Switched System in Secure Image Steganography Enhancement

IEEE Access
This paper proposes a pre-processing encryption then hiding scheme that enhances image security in steganography. The method combines a Walsh code with switched linear system encryption, followed by Discrete Wavelet Transform and Singular Value ...
Uyen L. P. Nguyen, Long Tonthat, Vu Dai Tran, Lap Luat Nguyen   +3 more
doaj   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Experimental investigation of the impact of optical injection on vital parameters of a gain-switched pulse source [PDF]

, 2007
An analysis of optical injection on a gain-switched distributed feedback (DFB) laser and its impact on pulse parameters that influence the performance of the pulse source in high-speed optical communication systems is presented in this paper.
Besnard, Pascal, Anandarajah, Prince M., Guignard, Celine, Barry, Liam P., Vaudel, O., Clarke, Aisling M., Clarke, Aisling, M., Vaudel, Olivier, Barry, Liam, P., Besnard, P., Anandarajah, Prince, M.   +10 more
core   +2 more sources

Analysis of exponential stability and L1-gain performance of positive switched impulsive systems with all unstable subsystems

Nonlinear Analysis
This article investigates the exponential stability and L1-gain performance of time-varying positive switched impulsive systems even when all modes are unstable.
Xiukun Zhang, Yuangong Sun, Xingao Zhu
doaj   +1 more source

Prospecting the protein design landscape

FEBS Letters, EarlyView.
This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona, Katharina T. Stonig, Jens Meiler, Clara T. Schoeder, Monica L. Fernández‐Quintero   +4 more
wiley   +1 more source

Robust Stability of Switched Interconnected Systems with Switching Uncertainties

Mathematics
This paper investigates the problem of robust stability for a class of switched interconnected systems characterized by unstable modes, time-varying state delays, and switching uncertainties.
Huanbin Xue, Xiaopeng Yang
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Cavity length independent continuous repetition rate tuning of a self-seeded gain-switched Fabry-Pérot laser [PDF]

, 2007
We propose a novel method that allows continuous repetition rate tuning of a self-seeded gain-switched Fabry-Perot laser without the need for change in cavity length.
Anandarajah, Prince M., Barry, Liam P., Maher, Robert D.   +2 more
core   +2 more sources