For randomly censored data, the authors propose a general class of semiparametricmedian residual life models. They incorporate covariates in a generalized linear form while leaving the baseline median residual life function completely unspecified. Despite the non-identifiability of the survival function for a given median residual life function, a simple and natural procedure is proposed to est...

The paper discusses a possible expansion of modern physics to include physics of Life since all attempts to create livings from non-living matter failed. Prior to the discussion, a life/non-life criterion is proposed: unlike physical systems, Livings can move from disorder to order without an external interference if the model of life concentrates upon the concept of intelligent behavior and do...

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Many organizations have adopted ERP systems, but most of them are not aware of the total costs associated with them, and they only consider the costs related with the software acquisition. This article is an exploratory study that sets out to identify other costs related to ERP systems during their life-cycle. Through the different phases of the life-cycle we define and categorize the various c...

This paper presents information flow model and a novel artificial life grid model to construct artificial life computer ecosystem environment. The life grid model is a three-dimensional information space: (time, artificial life node, and location). The former two dimensions identify the contents or function of artificial life systems, and the third-dimension identifies the location where an art...

Complex cognition and relatively large brains are distributed across various taxa, and many primarily verbal hypotheses exist to explain such diversity. Yet, mathematical approaches formalizing verbal hypotheses would help deepen the understanding of brain and cognition evolution. With this aim, we combine elements of life history and metabolic theories to formulate a metabolically explicit mat...

In this work, a method to enhance images based on a new artificial life model is presented. The model is inspired on the behaviour of a herbivore organism, when this organism is in a certain environment and selects its food. This organism travels through the image iteratively, selecting the more suitable food and eating parts of it in each iteration. The path that the organism travels through i...

The 2-parameter family of probability distributions introduced by Birnbaum & Saunders characterizes the fatigue failure of materials subjected to cyclic stresses and strains. It is shown that the methods of accelerated life testing are applicable to the Birnbaum–Saunders distribution for analyzing accelerated lifetime data, and the (inverse) power law model is used due to its justification for ...

Fine and ultrafine grinding of limestone are frequently used in the pharmaceutical, chemical, construction, food, cosmetic industries, however, research investigations have not yet been published on combination energy life cycle modeling. Therefore, first aim this work was examination main parameters particles to determine an empiric energy-model. Dry wet experiments carried out with a Bond mil...