Results 71 to 80 of about 4,429,470 (297)

Hybrid-mode control for grid-connected inverters and characteristics comparison with current-source mode and voltage-source mode

open access: yesInternational Journal of Electrical Power & Energy Systems
The grid-connected inverters (GCIs) controlled by traditional Current-Source Mode (CSM) and Voltage-Source Mode (VSM) face challenges in simultaneously meeting the requirements for small-signal stability, power-response, and grid-support.
Feng Han, Xing Zhang, Ming Li
doaj   +1 more source

Energy Efficiency in Mixed Access Networks

open access: yesProceedings of the 19th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, 2016
This paper tackles the multifaceted challenges of controlling mixed access networks with base stations, access points and D2D relay stations. Mixed access networks are of uncompelling importance since the next generation cellular access networks are envisioned to use different access technologies at once.
Christian Vitale, Vincenzo Mancuso
openaire   +2 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS 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

Off-Grid Electrification and its Impacts on the Waste Management System – the Case of Bangladesh [PDF]

open access: yes, 2015
By the end of 2010 more than 1.6 billion people lacked access to modern energy services. To overcome this situation the United Nations started the “sustainable energy for all initiative” with the objective to provide access to modern energy services ...
Batteiger, A.
core  

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

Cognitive and Energy Harvesting-Based D2D Communication in Cellular Networks: Stochastic Geometry Modeling and Analysis [PDF]

open access: yes, 2015
While cognitive radio enables spectrum-efficient wireless communication, radio frequency (RF) energy harvesting from ambient interference is an enabler for energy-efficient wireless communication.
Hossain, Ekram, Sakr, Ahmed Hamdi
core  

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

A CONCISE OVERVIEW OF GENERATORS FOR WIND ENERGY SYSTEM [PDF]

open access: yesJournal of Sustainable Energy, 2020
Wind power generator have been operational since 1888. Over this period, various types of wind turbine generator have been developed from the existing types of electric machines.
AIKA T. A.   +3 more
doaj  

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS 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

The Impact of an Electrical Mini-grid on the Development of a Rural Community in Kenya

open access: yesEnergies, 2019
Electrical mini-grids can provide electrification to rural communities far from the national network. However the benefits of such schemes are disputed.
AbuBakr Bahaj   +9 more
doaj   +1 more source

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