Generation of Johnson-Mehl crystals and comparative analysis of models for random nucleation

1995 ◽  
Vol 27 (02) ◽  
pp. 367-383 ◽  
Author(s):  
Jesper Møller
Keyword(s):  
Comparative Analysis ◽  
Poisson Processes ◽  
Three Dimensions ◽  
Empirical Results ◽  
Random Nucleation ◽  
Inhomogeneous Poisson Processes

Simulation procedures for typical Johnson-Mehl crystals generated under various models for random nucleation are proposed. These procedures include algorithms for simulating spatio-time-inhomogeneous Poisson processes. Empirical results for a particular class of Johnson-Mehl tessellations in two and three dimensions show remarkably different crystals.

Generation of Johnson-Mehl crystals and comparative analysis of models for random nucleation

1995 ◽  
Vol 27 (2) ◽  
pp. 367-383 ◽  
Author(s):  
Jesper Møller
Keyword(s):  
Comparative Analysis ◽  
Poisson Processes ◽  
Three Dimensions ◽  
Empirical Results ◽  
Random Nucleation ◽  
Inhomogeneous Poisson Processes

Simulation procedures for typical Johnson-Mehl crystals generated under various models for random nucleation are proposed. These procedures include algorithms for simulating spatio-time-inhomogeneous Poisson processes. Empirical results for a particular class of Johnson-Mehl tessellations in two and three dimensions show remarkably different crystals.

A comparative analysis of the lay-friendliness of Danish EU patient information leaflets from 2000 to 2012

2014 ◽  
Vol 11 (3) ◽  
Author(s):  
Inger Askehave ◽  
Karen Korning Zethsen
Keyword(s):  
Comparative Analysis ◽  
Patient Information ◽  
Patient Information Leaflet ◽  
General Interest ◽  
Information Leaflet ◽  
Empirical Results ◽  
Patient Information Leaflets ◽  
Information Leaflets ◽  
The Subject ◽  
The Eu

Since becoming mandatory in the EU in 1992, the patient information leaflet (PIL) has been the subject of an on-going discussion regarding its ability to provide easily understandable information. This study examines whether the lay-friendliness of Danish PILs has improved from 2000 to 2012 according to the Danish consumers. A reproduction of a questionnaire study from 2000 was carried out. The responses of the 2012 survey were compared to those of the 2000 survey and the analysis showed that Danes are less inclined to read the PIL in 2012 compared to 2000 and that the general interest in PILs has decreased. The number of respondents who deem the PIL easy to read has gone down. According to Danish consumers, the lay-friendliness of PILs has not improved from 2000 to 2012 and a very likely explanation could be that the PIL as a genre has become far too regulated and complex to live up to its original intentions. On the basis of the empirical results the article furthermore offers suggestions for practice changes.

Radial generation of n-dimensional poisson processes

1984 ◽  
Vol 21 (03) ◽  
pp. 548-557
Author(s):  
M. P. Quine ◽  
D. F. Watson
Keyword(s):  
Poisson Process ◽  
Poisson Processes ◽  
Three Dimensions ◽  
Simulation Studies ◽  
Simple Method ◽  
Efficient Simulation ◽  
Nearest Neighbours

A simple method is proposed for the generation of successive ‘nearest neighbours' to a given origin in ann-dimensional Poisson process. It is shown that the method provides efficient simulation of random Voronoi polytopes. Results are given of simulation studies in two and three dimensions.

scholarly journals A fluid limit for a cache algorithm with general request processes

2010 ◽  
Vol 42 (03) ◽  
pp. 816-833 ◽  
Author(s):  
Takayuki Osogami
Keyword(s):  
Stochastic Models ◽  
Point Processes ◽  
Original System ◽  
Poisson Processes ◽  
Fluid Limit ◽  
Average Probability ◽  
Inhomogeneous Poisson Processes ◽  
Formal Limit ◽  
Stochastic Point Processes ◽  
General Stochastic

We introduce a formal limit, which we refer to as a fluid limit, of scaled stochastic models for a cache managed with the least-recently-used algorithm when requests are issued according to general stochastic point processes. We define our fluid limit as a superposition of dependent replications of the original system with smaller item sizes when the number of replications approaches ∞. We derive the average probability that a requested item is not in a cache (average miss probability) in the fluid limit. We show that, when requests follow inhomogeneous Poisson processes, the average miss probability in the fluid limit closely approximates that in the original system. Also, we compare the asymptotic characteristics, as the cache size approaches ∞, of the average miss probability in the fluid limit to those in the original system.

Socio-economic distance of Poland and selected developing countries to the most developed countries in the world

2016 ◽  
Vol 61 (6) ◽  
pp. 86-103
Author(s):  
Jacek Ziemiecki
Keyword(s):  
Developing Countries ◽  
Comparative Analysis ◽  
Developed Countries ◽  
Emerging Countries ◽  
Three Dimensions ◽  
Economic Distance ◽  
The World

The aim of the study is to analyze the causes of the distance of emerging countries to the most developed countries in the world as well as proposals on ways to reduce this distance. A comparative analysis of the results obtained by the study was used for this purpose — the actual results obtained in developing countries were compared with the results obtained in the most developed countries. The analysis presents three dimensions of comparisons, which include: the distance between the countries, the most developed and developing countries, differences in the gap between developing countries and the gap distance within the different categories of indicators within a single country. The study used data for the years 1990—2013, and if it was possible for earlier years.

ON THE IDENTIFICATION OF THE SOURCE OF EMISSION ON THE PLANE

2019 ◽  
Vol 53 (2 (249)) ◽  
pp. 75-81
Author(s):  
N.V. Arakelyan ◽  
Yu.A. Kutoyants
Keyword(s):  
Asymptotic Properties ◽  
Radioactive Source ◽  
Poisson Processes ◽  
Inhomogeneous Poisson Processes ◽  
The Moment ◽  
Source Emission

We consider the problem of identification of the position and the moment of the beginning of a radioactive source emission on the plane. The acts of emission constitute inhomogeneous Poisson processes and are registered by $ K $ detectors on the plane. We suppose that the moments of arriving of the signals at the detectors are measured with some small errors. Then, using these estimate, we construct the estimators of the position of source and the moment of the beginning of emission. We study the asymptotic properties of these estimators for large signals and prove their consistency.

Three Dimensions of Ethnic Politics

1971 ◽  
Vol 23 (2) ◽  
pp. 232-244 ◽  
Author(s):  
Donald L. Horowitz
Keyword(s):  
Comparative Analysis ◽  
Developing World ◽  
Ethnic Politics ◽  
Three Dimensions ◽  
Religious Groups ◽  
Systematic Classification ◽  
Group Relations ◽  
New States

The growing recognition of the importance of ethnic, racial, and religious groups in the politics of the new states has given rise to an urgent need for theory. Although this need extends to all aspects of group relations, the first priority is for systematic classification to reduce the bewildering array of descent-groups in the developing world to manageable proportions and comparable cases. With a view to facilitating comparative analysis, the aim of this paper is to make a modest beginning in the formulation of meaningful categories.

scholarly journals The Terminographical Process: Phases and Dimensions

2014 ◽  
Vol 58 (1) ◽  
pp. 191-211
Author(s):  
Ana Rita Remígio
Keyword(s):  
Comparative Analysis ◽  
Industrial Application ◽  
Three Dimensions ◽  
Subject Field ◽  
The One ◽  
Three Phases

A proposal for segmentation and characterisation of the terminographical process, based on Gouadec’s model for translation, is presented in this paper. It comes as a result of a systematisation and comparative analysis of the various existing characterisations of the terminographical process, in an attempt – that has proven to be unfruitful – to identify the one, or a combination of different ones, which would meet the specific needs to build a resource targeted at a non-specialist public. The terminographical process is thus organised in three phases (pre-terminography, terminography, and post-terminography), and comprises three dimensions of analysis (conceptual, communicative, and textual). Broadly speaking, in pre-terminography, a preparatory piece of research is carried out (special subject field familiarisation, communicative contexts identification, and building of specialized corpora), a step which is essential to the next phase (terminography), in which a terminological database is built and populated. The last phase (post-terminography) comprises efforts aimed at the industrial application of the resource, as well as underscoring the need for its continual update. This methodology also takes into account the three dimensions of terms (conceptual, communicative and textual) which are applied and adopted in the process of termbase creation itself.

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