Results 61 to 70 of about 502,982 (299)
The Effects of Head Start on Low-Income Mothers
Socius, 2023 Head Start is a federal antipoverty program that provides free childcare, preschool, and related services to disadvantaged families. Research on Head Start has focused almost exclusively on impacts among children.
Catherine T. H. Yeh, Geoffrey T. Wodtke
doaj +1 more source
Overview of increasing the penetration of renewable energy sources in the distribution grid by developing control strategies and using ancillary services [PDF]
, 2014 Increasing the renewables energy resources in the distribution network is one of the main challenges of the distributed system operator due to instability, power quality and feeder capacity problems. This paper proposes a solution for further penetration
Bozalakov, Dimitar +3 more
core
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
Grid Integration Costs of Fluctuating Renewable Energy Sources
, 2014 The grid integration of intermittent Renewable Energy Sources (RES) causes costs for grid operators due to forecast uncertainty and the resulting production schedule mismatches.
Andersson, Göran +3 more
core +1 more source
Siglec receptors impact mammalian lifespan by modulating oxidative stress. [PDF]
, 2015 Aging is a multifactorial process that includes the lifelong accumulation of molecular damage, leading to age-related frailty, disability and disease, and eventually death. In this study, we report evidence of a significant correlation between the number
Fu, Xiaoming +16 more
core +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
DesignsThis study focuses on the participation of energy storage in primary frequency regulation of offshore wind farms. A frequency regulation performance evaluation indicator is designed, and the black-start capability of the wind farm after shutdown is also ...
Yu Wang +6 more
doaj +1 more source
Black Start and Voltage Establishment Strategy for PMSG-Based Wind Turbine
Frontiers in Energy Research, 2022 During the black start, backup ac power sources such as diesel generators can offer line-side voltage reference for wind turbine and keep line-side converter of wind turbine work properly so that the dc-link capacitor voltage within converter can be ...
Xiaotong Ji +6 more
doaj +1 more source
Diversity and complexity in neural organoids
FEBS 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
Quantification of efficiency improvements from integration of battery energy storage systems and renewable energy sources into domestic distribution networks [PDF]
, 2019 Due to the increasing use of renewable, non-controllable energy generation systems energy storage systems (ESS) are seen as a necessary part of future power delivery systems.
Farrag, Mohamed E. A. +2 more
core +2 more sources