Results 71 to 80 of about 5,801,750 (300)

Triangle-factors in powers of graphs

open access: yesElectronic Notes in Discrete Mathematics, 2003
Abstract In this paper, we investigate existence of triangle-factors, that is 2-factors in which every cycle is of length 3, in powers of graphs of order 3 k , k ≥ 1. It is easy to show that G 4 contains a triangle-factor for any connected graph and G 3 contains a triangle-factor for any connected claw-free graph G Our main result is that G
AGARWAL, NARENDRA, DIWAN, AJIT A
openaire   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Phase detector for three-phase power factor controller [PDF]

open access: yes, 1984
A phase detector for the three phase power factor controller (PFC) is described. The phase detector for each phase includes an operational amplifier which senses the current phase angle for that phase by sensing the voltage across the phase thyristor ...
Nola, F. J.
core   +1 more source

Investigation of conventional and Super-X divertor configurations of MAST Upgrade using SOLPS

open access: yes, 2014
One of the first studies of MAST Upgrade divertor configurations with SOLPS5.0 are presented. We focus on understanding main prospects associated with the novel geometry of the Super-X divertor (SXD).
Fishpool, G   +4 more
core   +1 more source

An algorithm for optimal sizing of the capacitor banks under non-sinusoidal and unbalanced conditions [PDF]

open access: yes, 2014
In non-sinusoidal and unbalanced systems, optimal sizing of the capacitor banks is not a straightforward task as in sinusoidal and balanced systems. In this paper, by means of qualitative and quantitative analysis, it is interpreted that the classical ...
Abdel Aleem, SHE   +3 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Consideration of Reactor Installation to Mitigate Voltage Rise Caused by the Connection of a Renewable Energy Generator

open access: yesEnergies, 2017
This paper describes the detailed analysis of a reactor application for a power plant to mitigate the voltage rise of a distribution line (DL) caused by the connection of distributed resources (DRs).
Yeonho Ok, Jaewon Lee, Jaeho Choi
doaj   +1 more source

On the q-factorization of power series

open access: yesThe Ramanujan Journal
Any power series with unit constant term can be factored into an infinite product of the form $\prod_{n\geq 1} (1-q^n)^{-a_n}$. We give direct formulas for the exponents $a_n$ in terms of the coefficients of the power series, and vice versa, as sums over partitions. As examples, we prove identities for certain partition enumeration functions.
Schneider, Robert   +2 more
openaire   +3 more sources

Factorizations of and by powers of complete graphs

open access: yesDiscrete Mathematics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Darryn E. Bryant   +2 more
openaire   +4 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

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