نتایج جستجو برای: تقریب gw
تعداد نتایج: 9286 فیلتر نتایج به سال:
Using a suite of progenitor models (12, 15, 20 and 40 M⊙) and neutrino luminosities in two-dimensional (2D) simulations, we investigate the gravitational-wave (GW) emission from postbounce phases of core-collapse supernovae (CCSNe). We characterize the matter GW signatures of prompt convection, steady-state convection, the standing accretion shock instability (SASI) , and asymmetric explosions....
– We solve the Dyson equation for atoms and diatomic molecules within the GW approximation, in order to elucidate the effects of self-consistency on the total energies and ionization potentials. We find GW to produce accurate energy differences although the selfconsistent total energies differ significantly from the exact values. Total energies obtained from the Luttinger-Ward functional ELW[G]...
BACKGROUND Data on the psychosocial burden of human papillomavirus (HPV)-related diseases other than cervical cancer are scarce. The objectives of this study were to measure and compare the psychosocial burden and the impact on health-related quality of life (HRQoL) of HPV-related lower genital tract diseases and genital warts (GW) using several generic and disease-specific instruments. METHO...
Thirty neonatal male Holstein calves fed by starter diets containing ground wheat (GW) or dry-rolled wheat (DRW) to 12 weeks of age. Skeletal growth measures, starter digestibility, starter intake, blood metabolites and rumen metabolites of nursing calves were assessed in weeks 4, 8 and 12 to assess rumen development and find the optimum method of wheat processing for calves. Calves were weaned...
The concept of world power for the 21st century envisages prevailing development of renewable and ecologically benign sources of energy, the main of which at present is tidal energy in terms of engineering aspects of its harnessing. Utilization of tidal energy at present is possible at 140 sites on the shores of the world ocean with total potential of 811 GW, which is about a quarter of total p...
The objective was to determine the effects of ground wheat grain (GW) inclusion rate, grinding extent (GE), and their interaction on lactating cow performance. Eight midlactation cows in 3 × 4 m individual boxes were used in a 4 × 4 replicated Latin square design study with 4 21 d periods. GW was fed at either 10% or 20% of diet dry matter (DM), as either finer or coarser particles. DM intake i...
We develop a formalism to calculate the quasiparticle energy within the GW many-body perturbation correction to the density functional theory. The occupied and virtual orbitals of the Kohn-Sham Hamiltonian are replaced by stochastic orbitals used to evaluate the Green function G, the polarization potential W, and, thereby, the GW self-energy. The stochastic GW (sGW) formalism relies on novel th...
We argue in this document that initial vacuum state values possibly responsible for GW generation in relic conditions in the initial onset of inflation may have a temporary unsqueezed , possibly even coherent initial value, which would permit in certain models classical coherent initial gravitational wave states Furthermore, several arguments pro and con as to if or not initial relic GW should ...
Let G be a simple, undirected graph and Gw be the positive weighted graph obtained from G by giving weights to its edges using the positive weight function w. A weighted graph Gw is said to be nonsingular if its adjacency matrix A(Gw) is nonsingular. Let G denote the class of connected, unweighted, bipartite graphs G with a unique perfect matching M such that G/M (the graph obtained by contract...
This article describes the use of symplectic cut-and-paste methods to compute Gromov-Witten invariants. Our focus is on recent advances extending these methods to Kähler surfaces with geometric genus pg > 0, for which the usual GW invariants vanish for most homology classes. This involves extending the Splitting Formula and the Symplectic Sum Formula to the family GW invariants introduced by th...
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