نتایج جستجو برای: bottlenecks

تعداد نتایج: 7704  

Journal: :Journal of Applied Business Research (JABR) 2014

Journal: :journal of advances in computer research 0
samaneh ghasemi department of computer engineering, sari branch, islamic azad university, sari, iran zeinab ghorbani lakterashani department of computer engineering, sari branch, islamic azad university, sari, iran

process mining includes the automated discovery of petri nets from event logs. these event logs are the starting point for various discovery and analysis techniques of the process.  in this paper process model is developed using colored petri nets (cpns) and the supporting software package cpn tools. the restaurant process model is represented for the analysis using a combination of process min...

2005

versity through genetic drift, founder effects, and genetic bottlenecks. Such events can reduce a population’s evolutionary potential and increase the risk of extinction. In this chapter, we use plant immigrants as a model system to examine the circumstances in which genetic bottlenecks do (and do not) occur and where in the hierarchical partitioning of genetic diversity such bottlenecks take p...

2016
Hongsheng Qi Meiqi Liu Lihui Zhang Dianhai Wang

Urban road congestions change both temporally and spatially. They are essentially caused by network bottlenecks. Therefore, understanding bottleneck dynamics is critical in the goal of reasonably allocating transportation resources. In general, a typical bottleneck experiences the stages of formation, propagation and dispersion. In order to understand the three stages of a bottle neck and how t...

Journal: :IEEE Journal on Selected Areas in Communications 2014

Journal: :American Journal of Pharmaceutical Education 2010

Journal: :Physical Review Letters 1999

Journal: :Current Biology 2011
Benoît Facon Ruth A. Hufbauer Ashraf Tayeh Anne Loiseau Eric Lombaert Renaud Vitalis Thomas Guillemaud Jonathan G. Lundgren Arnaud Estoup

Bottlenecks in population size reduce genetic diversity and increase inbreeding, which can lead to inbreeding depression. It is thus puzzling how introduced species, which typically pass through bottlenecks, become such successful invaders. However, under certain theoretical conditions, bottlenecks of intermediate size can actually purge the alleles that cause inbreeding depression. Although th...

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