This letter presents a numerical study of the evolution of an emission line cloud of initial density 10 cm, temperature 10 K, and size 200 pc, being overtaken by a strong shock wave. Whereas previous simple models proposed that such a cloud would either be completely destroyed, or simply shrink in size, our results show a different and more complex behaviour: due to rapid cooling, the cloud bre...

The demand for natural fibers such as silk, wool, and cotton is growing globally, especially silk fabrics raw materials from cocoons. In nations with well-established sericulture, efforts are concentrated on enhancing the quantity quality of cocoon production by high-nutrition-value mulberry varieties through asexual reproduction. study aimed to determine productivity hybrids during double oper...

Abstract Most ant species have lost the ability to spin cocoons. To explore evolution of cocoon loss within Formicidae, we perform an ancestral state reconstruction cocooned pupae across a genus-level phylogeny and use sister clade analysis determine impact on speciation. Then, fit models correlated between status several other organismal traits. We find that re-emergence cocoons is rare “naked...

In this article, one of the ways to effectively use non-smooth defective cocoons that cannot be used in reeling is covered. An analysis development silk industry and scientific work currently being carried out direction presented. Water air permeability produced during cocoon sorting, evaporation regimes, influence solution concentration on cocooning was studied by single cocooning. It based fa...