منابع مشابه
Structured Gamma
The Gamma language is based on the chemical reaction metaphor which has a number of bene ts with respect to parallelism and program derivation. But the original de nition of Gamma does not provide any facility for data structuring or for specifying particular control strategies. We address this issue by introducing a notion of structured multiset which is a set of addresses satisfying speci c r...
متن کاملA Distributed Implementation of Structured Gamma
This paper presents a distributed implementation of the Structured Gamma programming language, a language based on the Gamma multiset rewriting paradigm. Structured Gamma offers, in addition to the advantages introduced by Gamma, implicit concurrent behavior and a type system where not only types themselves are defined but also the automatic verification of user defined types at compilation tim...
متن کاملThe Very Early Gamma-ray Burst Afterglows Powered by Structured Jets
If X-ray flashes (XRFs) and X-ray rich Gamma-ray Bursts(XRRGs) have the same origin with Gamma-ray Bursts (GRBs) but are viewed from larger angles of structured jets, their early afterglows may differ from those of GRBs. When the ultra-relativistic outflow interact with the surrounding medium, there are two shocks formed, one is a forward shock, the other is a reverse shock. In this paper we ca...
متن کاملTesting the Universal Structured Jet Models of Gamma-ray Bursts by Batse Observations
Assuming that the observed gamma-ray burst (GRB) rate as a function of redshift is proportional to a corrected star formation rate, we derive the empirical distribution of the viewing angles of long BATSE GRBs, P (θ), and the distribution of these bursts in the plane of θ against redshift, P (θ, z), by using a tight correlation between collimation-corrected gamma-ray energy (Eγ) and the peak en...
متن کاملTesting the Predictions of the Universal - Structured Jet Model of Gamma - Ray Bursts by Simulations ⋆
Based on the standard energy reservoir of gamma-ray burst (GRB) jets and the relationship between peak energy (Ep) of νFν spectrum and the equivalent-isotropic energy (Eiso), we test the GRB probability distributions as a function of viewing angle (θ) and of viewing angle together with redshift z, P (θ) and P (θ, z), predicted by the universal-structured jet (USJ) model with simulations on obse...
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ژورنال
عنوان ژورنال: Science of Computer Programming
سال: 1998
ISSN: 0167-6423
DOI: 10.1016/s0167-6423(97)00023-3