Effective procedures for the reduction of reaction mechanisms, including the intrinsic lowdimensional manifold (ILDM) and the repro-modelling methods, are all based on the existence of very different time scales in chemical kinetic systems. These two methods are reviewed and the advantages and drawbacks of them are discussed. An algorithm is presented for the repro-modelling based generation of...

As part of process redesign initiatives, substantial time is spent on the systematic description and analysis of the as-is process. By contrast, to-be scenarios are often generated in a less rigorous way. Only one or a few workshops are organized for this purpose, which rely on the use of techniques that are susceptible to bias and incompleteness, e.g. brainstorming. In this paper, we evaluate ...

Sperm swimming in circles or a lone sperm cell with two heads: male reproductive aging is increasingly equated poor quality, the prevalence of offspring learning disabilities even schizophrenia. To discuss construction biological clock, this article asks: how does clock intervene men’s bodies. And secondly: repro-temporality visually and rhetorically invoked fertility campaigns, medical scienti...

This study evaluates the EUREF Permanent Network (EPN) station position time series of approximately 200 GNSS stations subject to Repro 2 reprocessing campaign in order characterize dominant types noise and amplitude their impact on estimated velocity values associated uncertainties. The visual inspection how different model represents analysed data was done using power spectral density residua...

Abstract The Arab world has experienced one of the most dramatic fertility declines in modern history, result both contraceptive technologies and couples’ desires for smaller families. Assisted reproductive genetic have also become widespread across region, leading to new practices vitro fertilization (IVF) with sex selection. This article examines desire small families sons, introduction repro...

Prediction in streaming data is an important activity in various branches of science such as sociology, economics and politics. Two major challenges offered by data streams are (1) the underlying concept of the data may change over time; and (2) the data may grow without limit so that it is difficult to retain a long history of raw data. Previous research has mainly focused on manipulating rela...

The toxicity of cadmium for the Collembola Folsomia candida was studied by determining the effects of increasing Cd concentrations on growth, survival and reproduction in three cultivated and forested soils with different pH (4.5-8.2) and organic matter content (1.6-16.5%). The Cd concentration in soil CaCl(2) exchangeable fraction, in soil solution and in Collembola body was determined. At sim...

Case-Based Reasoning (CBR) paradigm is very close to the designer behavior during the conceptual design, and seems to be a fruitable computer aided-design approach if a library of design cases is available. The goal of this paper is to presents the general framework of a case-based retrieval system: REPRO, that supports chemical process design. The crucial problems like the case representation ...

BACKGROUND Cardiovascular magnetic resonance (CMR) imaging has been used to visualise post-ablation atrial scar (PAAS), generally employing a three-dimensional (3D) late gadolinium enhancement (LGE) technique. However the reproducibility of PAAS imaging has not been determined. This cross-over study is the first to investigate the reproducibility of the technique, crucial for both future resear...