Results 41 to 50 of about 520,328 (352)

High-energy transients [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2013
We present an overview of high-energy transients in astrophysics, highlighting important advances over the past 50 years. We begin with early discoveries of γ-ray transients, and then delve into physical details associated with a variety of phenomena.
Gehrels, Neil, Cannizzo, John K.
openaire   +3 more sources

Very long transients in globally coupled maps [PDF]

open access: yes, 1999
Very long transients are found in the partially ordered phase of type II of globally coupled logistic maps. The transients always lead the system in this phase to a state with a few synchronous clusters.
Manrubia, S. C., Mikhailov, A. S.
core   +1 more source

Transient pseudohypoaldosteronism

open access: yesSrpski arhiv za celokupno lekarstvo, 2011
Introduction. Infants with urinary tract malformations (UTM) presenting with urinary tract infection (UTI) are prone to develop transient type 1 pseudohypoaldosteronism (THPA1). Objective. Report on patient series with characteristics of THPA1, UTM and/or UTI and suggestions for the diagnosis and therapy. Methods.
Stajić Nataša   +3 more
openaire   +3 more sources

A period distribution of X-ray binaries observed in the central region of M31 with Chandra and HST

open access: yes, 2012
Almost all Galactic black hole binaries with low mass donor stars are transient X-ray sources; we expect most of the X-ray transients observed in external galaxies to be black hole binaries also.
Barnard, R.   +6 more
core   +1 more source

Long gravitational-wave transients and associated detection strategies for a network of terrestrial interferometers [PDF]

open access: yes, 2011
Searches for gravitational waves (GWs) traditionally focus on persistent sources (e.g., pulsars or the stochastic background) or on transients sources (e.g., compact binary inspirals or core-collapse supernovae), which last for time scales of ...
Anderson, Warren G.   +12 more
core   +3 more sources

Understanding Epileptiform After-Discharges as Rhythmic Oscillatory Transients [PDF]

open access: yes, 2017
Electro-cortical activity in patients with epilepsy may show abnormal rhythmic transients in response to stimulation. Even when using the same stimulation parameters in the same patient, wide variability in the duration of transient response has been ...
Baier, Gerold   +2 more
core   +2 more sources

Role of Bose enhancement in photoassociation [PDF]

open access: yes, 2000
We discuss the role of Bose enhancement of the dipole matrix element in photoassociation, using stimulated Raman adiabatic passage as an example. In a nondegenerate gas the time scale for coherent optical transients tends to infinity in the thermodynamic
Javanainen J.   +2 more
core   +2 more sources

Simulation of surface deformation control during selective laser melting of AlSi10Mg powder using an external magnetic field

open access: yesAIP Advances, 2019
Selective laser melting (SLM) produces complex physical behaviors. After laser melting, the molten pool condenses with an uneven surface, which influences the next powder spreading process and affects the quality of the final product.
Liwei Chen   +9 more
doaj   +1 more source

Impeller Optimized Design of the Centrifugal Pump: A Numerical and Experimental Investigation

open access: yesEnergies, 2018
Combined numerical simulation with experiment, blade wrap angle, and blade exit angle are varied to investigate the optimized design of the impeller of centrifugal pump. Blade wrap angles are 122°, 126°, and 130°. Blade exit angles are 24°
Xiangdong Han   +3 more
doaj   +1 more source

Transients in Input and Output Signals in DC–DC Converters Working in Maximum Power Point Tracking Systems

open access: yesEnergies, 2023
Designing a maximum power point tracking system (MPPT) can raise many questions when it comes to choosing the best converter and algorithm for the job. The number of possible solutions can be overwhelming, especially when it comes to MPPT algorithms. New
Marcin Walczak, Leszek Bychto
doaj   +1 more source

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