The polycarbonate polyols(PCD) obtained by ring-opening polymerization of a general cyclic monomer is mostly a linear flexible structure, which is used as a raw material to synthesize polyurethanes, and it is Body butter difficult to simultaneously ensure good thermal-mechanical properties and weather resistance due to insufficient rigidity of the
Despite belonging to an important time slice in the geological history, the Eocene shallow-marine beds of the Alborz region in Iran have received little attention from researchers.We selected two stratigraphic sections (Mojen and Oven Fan Blade Kalateh) ascribed to the Ziarat Formation as suitable representatives for the current analysis, emphasisi
Mineral elements and non-structural carbohydrates (NSCs) are important nutrients and energy sources for flower development in plants.However, no studies were reported on the dynamic changes of nutrient stoichiometry and NSC contents in Houpoea officinalis (H.officinalis) flower.In this study, the changes in carbon (C), nitrogen (N), phosphorus (P),
Road emergency events are very dangerous, especially if they happen in tunnels.If such an event occurs with the presence of fire, self-evacuation is the most important.From experience from catastrophic events in Alpine tunnels, people can only have a few minutes to ORG CHLORELLA rescue.It was also reason that a lot of changes in technology and safe