Results 41 to 50 of about 3,030 (279)

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS 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

Resilient control of AC microgrids via MSOGI-FLL and virtual complex impedance

open access: yesUnconventional Resources
This paper presents a novel and resilient control strategy for isolated AC microgrids based on a Multiple Second-Order Generalized Integrator with Frequency-Locked Loop architecture and a complex virtual impedance design.
Mohamed Said Adouairi   +2 more
doaj   +1 more source

Comparison of DSOGI-Based PLL for Phase Estimation in Three-Phase Weak Grids

open access: yesElectricity, 2021
The paper presents a summary of different double second-order generalized integrator (DSOGI)-based phase-locked loop (PLL) algorithms for synchronization with three-phase weak grids.
Jorge Pinto   +3 more
doaj   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS 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

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

Generalized Fractional-Order Discrete-Time Integrator

open access: yes, 2017
We investigate a generalization of discrete-time integrator. Proposed linear discrete-time integrator is characterised by the variable, fractional order of integration/summation.
Dorota Mozyrska, Piotr Ostalczyk
core   +1 more source

Astrocyte heterogeneity in brain metastases

open access: yesMolecular Oncology, EarlyView.
Astrocytes emerge as pivotal regulators of metastatic colonization, survival, immune remodeling, and therapy response associated with an increasing heterogeneity that requires spatially and longitudinally resolved approaches to uncover regulatory programs and guide context‐specific therapies.
Carolina Hernández‐Oliver   +2 more
wiley   +1 more source

Voltage Sensorless Direct Power Control for PWM Rectifier Under Distorted Network Using Improved Virtual Flux Estimator

open access: yesAlgerian Journal of Signals and Systems, 2021
Generally, AC-DC conversion system in the power system use the diode-bridge based rectifiers that cannot be reversible and causes high current distortion. Besides, they reduce the power factor and energy quality. recently, the application of three-phase
Sarah DJABALI   +2 more
doaj   +1 more source

3-Point Block Methods for Direct Integration of General Second-Order Ordinary Differential Equations [PDF]

open access: yesAdvances in Numerical Analysis, 2011
A Multistep collocation techniques is used in this paper to develop a 3-point explicit and implicit block methods, which are suitable for generating solutions of the general second-order ordinary differential equations of the form . The derivation of both explicit and implicit block schemes is given for the purpose of comparison of results.
Julius Osato Ehigie   +2 more
openaire   +2 more sources

Design of single-phase phase-locked loop based on cascaded second-order generalized integrator

open access: yesDianzi Jishu Yingyong
Due to the inevitable existence of various DC bias and higher harmonics in the current power grid, the traditional phase-locked loop (PLL) based on Second-order Generalized Integrator (SOGI) is sensitive to DC bias and has insufficient filtering ability ...
Yu Cong   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy