Results 21 to 30 of about 1,647,342 (298)
On the Baldwin Effect in Active Galactic Nuclei: II. Intrinsic Spectral Evolution [PDF]
, 1999 We suggest that the growth of the central black hole in active galactic nuclei (AGN) due to the matter accreted over the AGN lifetime causes an evolution of the luminosity and spectrum.
A. Wandel +3 more
core +3 more sources
Effective Bit-Width and Under-Approximation [PDF]
, 2009 Recently, it has been proposed to use approximation techniques in the context of decision procedures for the quantifier-free theory of fixed-size bit-vectors. We discuss existing and novel variants of under-approximation techniques. Under-approximations produce smaller models and may reduce solving time significantly.
Robert Brummayer, Armin Biere
openaire +1 more source
The Effective Width in Composite Steel Concrete Beams at Ultimate Loads
Journal of Engineering, 2023 A composite section is made up of a concrete slab attached to a steel beam by means of shear connectors. Under positive and negative bending moment, part of the slab will act as a flange of the beam, resisting the longitudinal compression or tension ...
Mohannad Husain Mohsen +1 more
doaj +1 more source
Shape evolution of electrodeposited bumps into deep cavities [PDF]
, 2001 Metal posts and finer pitch solder bumps are the indispensable microconnectors for chip size packaging and are formed by electrodeposition into deep cavities. It is difficult to stir inside these deep cavities.
Dukovic +12 more
core +1 more source
The damping width of giant dipole resonances of cold and hot nuclei: a macroscopic model [PDF]
, 2001 A phenomenological macroscopic model of the Giant Dipole Resonance (GDR) damping width of cold- and hot-nuclei with ground-state spherical and near-spherical shapes is developed.
A. A. Sonzogni +34 more
core +3 more sources
Finite width effects in φ radiative decays [PDF]
Nuclear Physics A, 2003 The decay widths ϕ\to γf_0(980) and ϕ\to γa_0(980) are calculated taking into account the finite widths of the scalar resonances f_0(980) and a_0(980). The latter are shown to be essential in order to obtain meaningful results. Simultaneously we also study the decays ϕ\to γπ^0π^0 and γπ^0ηwhere a good reproduction of the recent experimental data is ...
openaire +2 more sources
On expansion in the width for domain walls [PDF]
, 1995 The well-known idea to construct domain wall type solutions of field equations by means of an expansion in the width of the domain wall is reexamined. We observe that the problem involves singular perturbations.
Arodz +27 more
core +2 more sources
CONVOLUTION FORMULA AND FINITE W BOSON WIDTH EFFECTS IN TOP QUARK WIDTH [PDF]
International Journal of Modern Physics A, 2008 In the Standard Model, the top quark decay width Γt is computed from the exclusive t → bW decay. We argue in favor of using the three body decays [Formula: see text] to compute Γt as a sum over these exclusive modes. As dictated by the S-matrix theory, these three body decays of the top quark involve only asymptotic states and incorporate the width of
Calderon, G., Castro, G. Lopez
openaire +2 more sources
Revista IBRACON de Estruturas e Materiais, 2018 Most of the engineering problems involving structural elements of steel-concrete composite beam type are approximations of the structural problem involving concrete plates connected by connectors to steel beams.
A. R. SILVA, L. E. S. DIAS
doaj +2 more sources
Dynamical calculation of $d^*$ mass and NN decay width in the quark delocalization, color screening model [PDF]
, 2000 The mass estimate of the $d^* (IJ^P=03^+)$ dibaryon is improved by a dynamical calculation in the quark delocalization, color screening model. The partial decay width of $d^*$ into an $NN$ D-wave state is also obtained.
Abramov +56 more
core +2 more sources