The 3D printing of polyesters is most commonly performed using polylactide filaments for material extrusion (formerly known as fused-deposition modelling) or by introducing methacrylate end-groups to polyesters, which can be polymerized a radical mechanism. However, cyclic esters also via cationic ring-opening photopolymerization, opens up the possibility high-resolution stereolithography metho...

appropriate management of soil phosphorus (p) fertility in highly calcareous soils of iran as around the world should rely upon sound knowledge about the phosphorus reserve and its bioavailability. despite numerous reports on the positive effects of vesicular arbuscular mycorrhizae (vam) fungi on phosphorus uptake which is associated to ectomycorrhiza as a branch of two major branches of group ...

in this work, the effect of presence of the sodium tripolyphosphate (stpp), as an inorganic salt, on improving the performance of polyamide (pa) thin layer membranes has been studied. characterization analyses confirmed the presence of the salt on the whole surface structure of the thin layer. different salt loadings resulted in different fluxes and cu (ii) rejections. the thin layer containing...