Results 71 to 80 of about 36,281 (219)
Molecular Gas Properties in Young Stellar Clusters with a Suppressed Star Cluster Wind
The Astrophysical Journal Letters, 2023 In compact and dense star-forming clouds a global star cluster wind could be suppressed. In this case stellar feedback is unable to expel the leftover gas from the cluster. Young massive stars remain embedded in a dense residual gas and stir it by moving
Sergiy Silich +3 more
doaj +1 more source
Rectangular Hierarchical Cartograms for Socio-Economic Data [PDF]
, 2010 We present rectangular hierarchical cartograms for mapping socio-economic data. These density-normalising cartograms size spatial units by population, increasing the ease with which data for densely populated areas can be visually resolved compared to ...
Aidan Slingsby +9 more
core +2 more sources
Engineering Reports, Volume 8, Issue 1, January 2026.A modified line voltage stability index (MLVSI) is proposed to address limitations in the existing indices. The MLVSI is evaluated against Lmn, MVSI, and NCPI under varying load levels, renewable energy penetration, and contingency scenarios. It considers line resistance, power flow direction, and high‐loading events to identify critical lines and ...
Yalew Gebru Werkie +2 more
wiley +1 more source
Collapsar Black Holes Are Likely Born Slowly Spinning
The Astrophysical Journal Letters, 2023 Collapsing stars constitute the main black hole (BH) formation channel, and are occasionally associated with the launch of relativistic jets that power γ -ray bursts (GRBs). Thus, collapsars offer an opportunity to infer the natal (before spin-up/down by
Ore Gottlieb +4 more
doaj +1 more source
A Phenomenological Study on Lepton Mass Matrix Textures [PDF]
, 2001 The three active light neutrinos are used to explain the neutrino oscillations. The inherently bi-large mixing neutrino mass matrix and the Fritzsch type, bi-small mixing charged lepton mass matrix are assumed.
A. Aranda +42 more
core +3 more sources
Transfer Hydrogenation: Advances in Manganese and Nickel Metal Catalysis
Journal of Chemistry, Volume 2026, Issue 1, 2026.Transfer hydrogenation (TH) of ketones, catalyzed by transition–metal complexes, produces alcohols, which are important building blocks in the pharmaceutical and fine chemical industries. For a long time, catalysts based on noble metals such as ruthenium, rhodium, and iridium have dominated the TH of ketones.
James Kamau +3 more
wiley +1 more source
Precision of the Invariator Estimator of the Surface Area of an Ellipsoid
Image Analysis and StereologyConsider a triaxial ellipsoid K of surface area S. Fix an arbitrary point P in the interior of K, that is P ∈ K°, and generate a sectioning plane L32[P] through P, whose normal direction u is uniform random on the unit hemisphere S2+.
Luis Manuel Cruz-Orive
doaj +1 more source
The Astrophysical Journal Letters, 2023 Common envelope (CE) evolution is an outstanding open problem in stellar evolution, critical to the formation of compact binaries including gravitational-wave sources.
M. Renzo +7 more
doaj +1 more source
Hierarchy of general invariants for bivariate LPDOs
, 2005 We study invariants under gauge transformations of linear partial differential operators on two variables. Using results of BK-factorization, we construct hierarchy of general invariants for operators of an arbitrary order.
A. B. Shabat +6 more
core +2 more sources
New Physics in the Third Family and its Effect on Low Energy Data [PDF]
, 1999 We investigate, in detail, a model in which the third family fermions are subjected to an SU(2) dynamics different from the first two families. Constrained by the precision Z-pole data, the heavy gauge boson mass is bounded from below to be about 1.7 TeV
Malkawi, Ehab, Yuan, C. -P.
core +2 more sources