Results 81 to 90 of about 1,930 (230)

Spatial verification of global precipitation forecasts

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We present an adaptation of the recently developed precipitation attribution distance (PAD) metric, designed for verifying precipitation, enabling its use on the Earth's spherical geometry. The method is fast and flexible, with its behavior analyzed using a set of idealized cases and 7 years of operational global high‐resolution precipitation forecasts.
Gregor Skok, Llorenç Lledó
wiley   +1 more source

A new construction for vertex decomposable graphs [PDF]

open access: yesTransactions on Combinatorics, 2016
Let G be a finite simple graph on the vertex set V(G) and let S⊆V(G). Adding a whisker to G at x means adding a new vertex y and edge xy to G where x∈V(G). The graph G∪W(S) is obtained from G by adding a whisker to every vertex of S. We prove that if G∖S
Nasser Hajisharifi, Abolfazl Tehranian
doaj  

A Note on Path Domination

open access: yesDiscussiones Mathematicae Graph Theory, 2016
We study domination between different types of walks connecting two non-adjacent vertices u and v of a graph (shortest paths, induced paths, paths, tolled walks).
Alcón Liliana
doaj   +1 more source

Some structural graph properties of the non-commuting graph of a class of finite Moufang loops

open access: yesElectronic Journal of Graph Theory and Applications, 2020
For any non-abelian group G, the non-commuting graph of G, Γ=ΓG, is a graph with vertex set G \ Z(G), where Z(G) is the set of elements of G that commute with every element of G and distinct non-central elements x and y of G are joined by an edge if and ...
Hamideh Hasanzadeh Bashir   +1 more
doaj   +1 more source

Influence of the tie-break rule on the end-vertex problem [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
End-vertices of a given graph search may have some nice properties, as for example it is well known that the last vertex of Lexicographic Breadth First Search (LBFS) in a chordal graph is simplicial, see Rose, Tarjan and Lueker 1976.
Pierre Charbit   +2 more
doaj   +1 more source

Chordality Properties and Hyperbolicity on Graphs

open access: yesThe Electronic Journal of Combinatorics, 2016
Let $G$ be a graph with the usual shortest-path metric. A graph is $\delta$-hyperbolic if for every geodesic triangle $T$, any side of $T$ is contained in a $\delta$-neighborhood of the union of the other two sides. A graph is chordal if every induced cycle has at most three edges.
openaire   +3 more sources

Sonified Signals From a Compact FT‐ICR Instrument: A Feasibility Study. I—Data Mapping to an Equal‐Tempered Chromatic Scale

open access: yesRapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale Ions trapped within a Penning cell (ICR) travel periodic orbits whose frequencies are dependent on their mass‐to‐charge ratio and the value of the magnetic field passing through the trap. Fourier transformation (FT‐ICR) decomposes the signal induced in the detection circuit by the rotation of the ions in the cell after the ...
Patrick Arpino, Michel Heninger
wiley   +1 more source

Automated extraction of right whale morphometric data from drone aerial photographs

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Aerial photogrammetry is a popular non‐invasive method for measuring marine mammal body size, body morphometrics, and body condition, but processing large datasets efficiently remains challenging. We developed a machine learning algorithm using Mask R‐CNN models to automatically measure body morphometrics of southern right whales from aerial ...
Chhandak Bagchi   +4 more
wiley   +1 more source

A Programming Platform Design for Children to Create and Explore Hybrid Musical Instruments

open access: yesSoftware: Practice and Experience, EarlyView.
ABSTRACT Engaging young learners in coding activities is increasingly important to prepare them to participate in a contemporary computationally centred society. Engagement comes from finding appropriate motivation and the use of materials and methods that are suitable to the educational stage and learning opportunities. In this article, we present our
Nicolas Gold   +3 more
wiley   +1 more source

Early use of the reinforced concrete in the architecture of the Historicism in Austria–Hungary

open access: yesStructural Concrete, EarlyView.
Abstract The study examines the early incorporation of reinforced concrete in the architecture of Historicism in Austria–Hungary. Spanning the late 19th to early 20th centuries, the research illuminates the period's stylistic pluralism and the transformative impact of reinforced concrete.
Éva Lovra, Zoltán Bereczki
wiley   +1 more source

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