Amorphous catalytic materials belonging to the Nb 2 O 5 –P –SiO system were prepared through an original sustainable sol-gel procedure, and characterized by surface area, porosity acidity measurements. Their acid properties have been investigated FT-IR spectroscopy of adsorbed pyridine, ammonia titration TPR, as well with 2-phenylethylamine from organic solution. They present Lewis attributed n...

سوسک چهارنقطه‌ای حبوباتCallosobruchus maculatus (F.) (Coleoptera: Chrysomelidae) آفتی خسارت‌زا روی لوبیا چشم‌بلبلی Vigna unguiculata (L.) در مزرعه و انبار بوده منجر به کاهش قابل‌توجه وزن دانه، قدرت جوانه‌زنی ارزش بازاری محصول می‌شود. تاثیر کوددهی (رقم مشهد) با کودهای شیمیایی تریپل ‌سوپرفسفات (TSP) اوره برخی زیستی ( Bradyrhizobium japonicum، Pseudomonas putida Glomus spp.) زیست‌شناسی پارامترهای ...

In order to transform the crystalline form of Ca2SiO4 (C2S) in phosphorus-containing slag from monoclinic β-polycrystalline square γ-polycrystalline, a volume expansion about 11% was generated, which caused undergo self-powdering. The CaO-SiO2-Al2O3-MgO-MnO-P2O5-FeO system analyzed using FactSage7.1 thermodynamic software, and effects different P2O5, FeO basicity on mineral phase composition we...