Results 41 to 50 of about 9,646,686 (304)

Optimization of substation grounding grid design for horizontal and vertical multilayer and uniform soil condition using Simulated Annealing method.

open access: yesPLoS ONE, 2021
Grounding systems are critical in safeguarding people and equipment from power system failures. A grounding system's principal goal is to offer the lowest impedance path for undesired fault current. Optimization of the grounding grid designs is important
Navinesshani Permal   +4 more
doaj   +1 more source

A Method for Calculating Grounding Resistance of Reinforced Concrete Foundation Grounding Systems

open access: yesEnergies, 2022
Tower foundations have been used as grounding electrodes to reduce the area of the grounding devices. However, it is difficult to calculate the grounding resistance due to the complex structure of the reinforced concrete foundation.
Bowen Dou, Rui Liu, Youping Tu, Bo Zhang
doaj   +1 more source

Analysis of electrical safety conditions in system TN

open access: yesГорные науки и технологии, 2016
Examined various cases of human touch to emergency equipment in the mains voltage up to 1 kV at different types of grounding system TN. In analyzing the various cases derived the analytical contact voltage relations depending on various parameters of the
A. V. Lyahomsky   +2 more
doaj   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

Computational Grounding: An Overview of Common Ground Applications in Conversational Agents

open access: yesIJCoL, 2021
This work reports on the literature on grounding in conversational agents, as one of the pragmatic aspects adopted to ensure a better communicative efficiency in dialogue systems. The paper starts with a general description of the theory of grounding. As
Maria Di Maro
doaj   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

A survey of Bolzano's theory of grounding

open access: yes, 2022
This survey paper pursues three aims. The first aim is to sketch the overall role that grounding plays in Bolzano’s philosophy and to indicate some historical roots of his views, namely Aristotle’s conception of scientific proofs and the rationalist’s ...
Schnieder, Benjamin   +1 more
core   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

Senescent ground tree rewrite systems [PDF]

open access: yesProceedings of the Joint Meeting of the Twenty-Third EACSL Annual Conference on Computer Science Logic (CSL) and the Twenty-Ninth Annual ACM/IEEE Symposium on Logic in Computer Science (LICS), 2014
Ground Tree Rewrite Systems with State are known to have an undecidable control state reachability problem. Taking inspiration from the recent introduction of scope-bounded multi-stack pushdown systems, we define Senescent Ground Tree Rewrite Systems. These are a restriction of ground tree rewrite systems with state such that nodes of the tree may no ...
openaire   +4 more sources

Identity criteria: an epistemic path to conceptual grounding

open access: yes, 2018
Are identity criteria grounding principles? A prima facie answer to this question is positive. Specifically, two-level identity criteria can be taken as principles related to issues of identity among objects of a given kind compared with objects of a ...
Carrara, Massimiliano, De Florio, Ciro
core   +1 more source

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