Results 71 to 80 of about 12,385 (266)

Complement of the generalized total graph of fields

AKCE International Journal of Graphs and Combinatorics, 2020
Let R be a commutative ring and H be a multiplicative prime subset of R. The generalized total graph is the undirected simple graph with vertex set R and two distinct vertices x and y are adjacent if For a field F, is the only multiplicative prime subset
T. Tamizh Chelvam, M. Balamurugan
doaj   +1 more source

Chlorella vulgaris biorefineries: sustainable biofuels and high‐value carbon capture

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Global reliance on fossil fuels has created urgent economic and environmental challenges, yet large‐scale use of algal biomass remains limited by production costs. Industrial scaling is constrained by inefficient harvesting and the technical challenges of processing recalcitrant cell walls.
Sandyelle Ferreira Alcântara Araújo, Antonio Átila Menezes Ferreira, Lucia Andrea Sindeaux de Oliveira, Dayana Nascimento Dari, Devany Quintela Soares, Eliana Elisa Francelino Mavie, Francisco Leonardo Alves de Moraes Sousa, Jessica Lopes da Silva, João Vitor Gomes de Araújo Silva, Thiago Queiroz da Silva, Ana Karine Portela Vasconcelos, Kelma Maria dos Santos Pires Cavalcante, John Hebert da Silva Felix, José Cleiton Sousa dos Santos   +13 more
wiley   +1 more source

Unveiling the Microvasculature: The Index of Microcirculatory Resistance and Its Expanding Role in Cardiovascular Care

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Index of microcirculatory resistance (IMR) is a cutting‐edge, wire‐based tool that advances the capability assessment of coronary microvascular function. By utilizing distal coronary pressure and mean transit time under maximal hyperemia, IMR delivers consistent, reproducible insights into the microvasculature's dynamic health.
Joanna Sohn, Matthew A. Soderstrom, Ariana Ramirez, John‐Henry Dean, Raj Shah, Debanshu Roy, Kenneth Stone, Ariel Vinas, Bryan Ramsey, Charles Lin, Robert Chilton   +10 more
wiley   +1 more source

Graphs of Bounded Chordality

The Electronic Journal of Combinatorics
 A hole in a graph is an induced subgraph which is a cycle of length at least four. A graph is chordal if it contains no holes. Following McKee and Scheinerman (1993), we define the chordality of a graph $G$ to be the minimum number of chordal graphs on $V(G)$ such that the intersection of their edge sets is equal to $E(G)$.
Chaniotis, Aristotelis, Miraftab, Babak, Spirkl, Sophie   +2 more
openaire   +2 more sources

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

3-Colourability of Dually Chordal Graphs in Linear Time [PDF]

, 2012
A graph G is dually chordal if there is a spanning tree T of G such that any maximal clique of G induces a subtree in T. This paper investigates the Colourability problem on dually chordal graphs.
Leitert, Arne
core  

On the pathwidth of chordal graphs

Discrete Applied Mathematics, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Intersection Graphs of Pseudosegments: Chordal Graphs

Journal of Graph Algorithms and Applications, 2010
We investigate which chordal graphs have a representation as intersection graphs of pseudosegments. For positive we have a construction which shows that all chordal graphs that can be represented as intersection graph of subpaths on a tree are pseudosegment intersection graphs. We then study the limits of representability.
Cornelia Dangelmayr, Stefan Felsner, William T. Trotter   +2 more
openaire   +3 more sources

Finite Element Modelling of Rocking and Hybrid Precast Walls under Seismic Loading

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT In recent years, self‐centring systems have received considerable research interest in the seismic design of precast concrete structures for their ability to limit damage and satisfy resilience requirements. Rocking and hybrid structural walls, characterised by the formation of a single gap at the wall–foundation interface, mitigate damage by ...
Andrea Belleri, Michele E. Bressanelli, Simone Labò, Jose I. Restrepo   +3 more
wiley   +1 more source

A new method for computing the vertex PI index with applications to special classes of graphs

AKCE International Journal of Graphs and Combinatorics
The Padmakar-Ivan (PI) index of a graph G is given by [Formula: see text], where [Formula: see text] is the number of equidistant vertices for the edge e.
S. C. Manju, K. Somasundaram, Yilun Shang   +2 more
doaj   +1 more source