This paper addresses the use of hierarchical model structuring mechanisms for the design of embedded systems (in the sense of reactive real-time systems), using Reactive Petri nets. Relevant characteristics of Reactive Petri nets are briefly presented and their main roots are identified, namely Coloured Petri nets, Interpreted and Synchronised Petri nets. Two structuring techniques will be pres...

The cell-model and its treatment on the Poisson-Boltzmann level are two important concepts in the theoretical description of charged macro-molecules. In this brief contribution to Ref. [1] we provide an introduction to both ideas and summarize a few important results which can be obtained from them. Our article is organized as follows: Section 1 outlines the sequence of approximations which ult...

This contribution examines the macro quantitative features of 15 lowfrequency word classes. The relationship between word frequency classes and the sizes of the frequency classes obeys Altmann’s power law, and the sizes of lowfrequency word classes increase along with the increase of text length. The relationship between text length and the sizes of low-frequency word classes also obeys Altmann...

Diverse modeling and simulation methods are being applied in the area of Systems Biology. Most models in Systems Biology can easily be located within the space that is spanned by three dimensions of modeling: continuous and discrete; quantitative and qualitative; stochastic and deterministic. These dimensions are not entirely independent nor are they exclusive. Many modeling approaches are hybr...

The fast-approaching 2015 deadline for developing nations to meet internationally-set targets for universal primary education and gender equality has caused governments and development agencies around the world to examine what has and has not been achieved to date. Earlier goals set by UNICEF’s Millennium Development Goals (MDGs) and Educational For All (EFA) initiatives are undergoing a seriou...

This paper examines a novel approach of corrosion damage analysis based on image processing for quantitative and qualitative evaluation of degradation effects on stone surfaces. This methodology can be applied in situ in association with a variety of nondestructive monitoring schemes, and on images acquired from several imaging modalities, capturing from microto macro-scale characteristics. Our...

optimization of process parameter is one of the ideal goals in laser sintering. the results of this process were measured as output parameters like: density, micro hardening, macro hardening, tension, roughness, stiffness, balling. in this paper, the influence of input parameter such as laser power, scan speed, material powder and etc are surveyed on output parameter like balling affection and ...

This paper revisits three reports on ergonomic aspects of development initiatives taking place in Industrially Developing Countries (IDCs). These include a macro-ergonomics intervention in a habitation community in Cape Verde (aimed at designing solutions contributing to sustainable development), the evolution of poultry growers' control strategies as an integrative broiler operation is introdu...