The thermal degradation of cellulose is an important process in several fields such as the paper industry, biomass combustion, fire retardation, etc. Paper consists mostly of cellulose fibres. Although the fibre source has changed continiously from cotton or linen rags to wood, its nature is still vegetal. Pyrolysis in combination with gas chromatography and mass spectrometry has been used to i...

At the start of the 21st century annual world consumption of unwoven fabrics (for practical and technical uses) stood at 46 million tonnes, of which synthetics and cotton accounted for 49% and 42% respectively (with an upward trend in subsequent years), wool for 5%, and other fabrics 4% (linen, sisal, silk and others, with a downward trend) (Central Statistical Office Yearbooks – Roczniki GUS, ...

The ancient Egyptians had a distinct and flourishing textile industry with diverse characteristics. developments in archaeological studies over the last few decades have assisted identifying techniques used manufacture of fabrics demonstrated complexity this industry. are well-known for production linen varying structures purposes everyday use by different social classes. Bab El-Gasus tomb at D...

In the program to classify C-algebras, it is very important to find abstract conditions which are sufficient to imply that a given algebra has tracial rank zero, in the sense of Huaxin Lin. Even in the presence of a unique trace, we show that the union of the known necessary conditions is not enough.

The outbreak of coronavirus disease (COVID-19) has created a global health crisis that had deep impact on the way we perceive our world and everyday lives. call for wearing face masks as one ways curbing resulted in proliferation cloth markets. In desperation to cash season make money at all costs, some manufacturers use inferior fabrics produce masks. Some these do not meet basic performance r...

It is well known that visually guided behavior is impaired in visually deprived cats. In particular, visual discrimination learning is strongly affected. In an earlier paper prepared in this Laboratory (2) such deficit was observed in cats visually deprived by means of linen hoods, which prevented pattern vision. In the present paper the targeting (orienting) reflex evoked by a sound from a vis...