Results 31 to 40 of about 984,564 (290)

Chemical Evolution in Hierarchical Clustering Scenarios [PDF]

Symposium - International Astronomical Union, 2004
We present first results of an implementation of chemical evolution in a cosmological hydrodynamical code, focusing the analysis on the effects of cooling baryons according to their metallicity. We found that simulations with primordial cooling can underestimate the star formation rate from z < 3 and by up to ≈ 20%.
Tissera, Patricia B., Scannapieco, Cecilia   +1 more
openaire   +2 more sources

Self-consistent simulation of plasma scenarios for ITER using a combination of 1.5D transport codes and free-boundary equilibrium codes

, 2013
Self-consistent transport simulation of ITER scenarios is a very important tool for the exploration of the operational space and for scenario optimisation.
Albanese, R, Ambrosino, R, Artaud, J-F, Besseghir, K, Cavinato, M, Corrigan, G, Garcia, J, Garzotti, L, Gribov, Y, Imbeaux, F, Koechl, F, Labate, C V, Lister, J, Litaudon, X, Loarte, A, Maget, P, Mattei, M, McDonald, D, Nardon, E, Parail, V, Saibene, G, Sartori, R, Urban, J   +22 more
core   +1 more source

Unintegrated gluon distributions for forward jets at LHC [PDF]

, 2015
We test several BFKL-like evolution equations for unintegrated gluon distributions against forward-central dijet production at LHC. Our study is based on fitting the evolution scenarios to the LHC data using the high energy factorization approach.
Kotko, Piotr, Slominski, Wojciech, Toton, Dawid   +2 more
core   +2 more sources

Algols as Limits on Binary Evolution Scenarios [PDF]

International Astronomical Union Colloquium, 1989
AbstractEvolutionary scenarios must account for Algol binaries surviving their first phase of mass transfer. The outcome of this phase is dependent upon the rapidity of the initial mass transfer, which can be estimated by calculating the radial reponse of potential progenitors to mass loss.
openaire   +1 more source

Multi-criteria Evolution of Neural Network Topologies: Balancing Experience and Performance in Autonomous Systems

, 2018
Majority of Artificial Neural Network (ANN) implementations in autonomous systems use a fixed/user-prescribed network topology, leading to sub-optimal performance and low portability.
Behjat, Amir, Chidambaran, Sharat, Chowdhury, Souma   +2 more
core   +1 more source

Dark matter casts light on the early Universe

Journal of High Energy Physics, 2018
We show how knowledge of the cold dark matter (CDM) density can be used, in conjunction with measurements of the parameters of a scenario for beyond the Standard Model (BSM) physics, to provide information about the evolution of the Universe before Big ...
A. Arbey, J. Ellis, F. Mahmoudi, G. Robbins   +3 more
doaj   +1 more source

Cavity evolution in relativistic self-gravitating fluids

, 2010
We consider the evolution of cavities within spherically symmetric relativistic fluids, under the assumption that proper radial distance between neighboring fluid elements remains constant during their evolution (purely areal evolution condition).
Bondi H, Darmois G, G Le Denmat, Gaite J, Giovanelli R, Herrera L Di Prisco A Ospino J, Hoyle F, Hoyle F, Kippenhahn R, L Herrera, Lemaître G, Maartens R, N O Santos, Peebles P J E, Peebles P J E, Rudnick L Brown S Williams L R, Santos N O, Skripkin V A, Tikhonov A V, Torres R, van Weygaert R Platen E, Wiltshire D L, Zeldovich Ya   +22 more
core   +2 more sources

Rotational inhomogeneities from pre-big bang? [PDF]

, 2004
The evolution of the rotational inhomogeneities is investigated in the specific framework of four-dimensional pre-big bang models. While minimal (dilaton-driven) scenarios do not lead to rotational fluctuations, in the case of non-minimal (string-driven)
Bardeen J, Barrow J, Barrow J, Barrow J, Battefeld T Brandenberger R, Battefeld T J Easson D A, Chen C-M, Chen C-M, Gasperini M, Giovannini M, Giovannini M, Gratton S, Grishchuk L P, Khouri J, Khouri J, Lifshitz E M, Lifshitz E M, Massimo Giovannini, Meissner K, Obukhov Y   +19 more
core   +1 more source

New scenario of plasma evolution in IC 443 [PDF]

Publications of the Astronomical Society of Japan, 2019
AbstractMost young and middle-aged supernova remnants (SNRs) exhibit an ionizing plasma (IP), an ionizing process following a shock-heated SNR gas. On the other hand, significant fractions of SNRs exhibit a recombining plasma (RP). The origin and the mechanisms of the RP, however, are not yet well understood. This paper proposes a new model that the RP
Hirayama, Arisa, Yamauchi, Shigeo, Nobukawa, Kumiko K., Nobukawa, Masayoshi, Koyama, Katsuji   +4 more
openaire   +2 more sources

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül, Neriman Sıla Koç, Berrak Itır Aylı   +2 more
wiley   +1 more source