An optical analysis of the organic soil over an old petroleum tar deposit

An optical analysis of the organic soil over an old petroleum tar deposit

- 1 - An optical analysis of the organic soil over an old petroleum tar deposit 1 2

4 Museum National d’Histoire Naturelle, CNRS UMR 5176, 4 avenue du Petit Château, 5 91 800 Brunoy, France 6 7 Abstract 8 9 We analysed by an optical method (the small volume method) the composition 10 and the vertical distribution of an organic soil which accumulated over an old petroleum 11 tar deposit. The study site was an oil refinery now colonised by woody vegetation since 12 the time of a...

Species assemblages and diets of Collembola in the organic matter accumulated over an old tar deposit

an infinite planar array of rectangular microstrip patch antenna analysis

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

content analysis of l1 and l2 writing textbooks and the perception analysis of university professors on the influence of english writing expertise on the persian in an efl context

the importance of writing as a complex skill in applied linguistics has drawn the attention of many researchers to evaluate textbooks in order to help learners gain self-sufficiency and autonomy in the field of language use and communication. investigations have shown that developments in textbooks evaluation can promote the quality of pedagogies and consequently the learning. this study attemp...