The thermodynamics of five Al3Er compounds were investigated through first-principles density-functional theory (DFT) and experimental analysis. with Al3Ho.hR20 (prototype Al3Ho, Pearson symbol hR20), Cu3Au.cP4, AlNd3.hP8, Ni3Ti.hP16 Al3Gd.hR12 structures exhibited formation energies −0.412(−0.417), −0.411(−0.416), −0.400(−0.413), −0.399(−0.345) −0.342(−0.345) meV/atom when using DFT “standard”...

Chaharmahal and Bakhtiari Province is one of the 31 provinces of Iran and located on the southwestern part of the country. Its capital is Shahrekord. It has an area of 16,332 square kilometers and a population of 857,910. To study of human development used the Surplus Biocappacity (SB) and Human Development Index (HDI). This research accrued in the shahr-e-kord, Boroojen, Farsan, Ardal, Lordega...

rainfall is recognized as one of the main triggering factors of landslides. researchers have long attempted to determine the amount of precipitation required to trigger slope failures. one of the landslide zones in iran is chaharmahal & bakhtiari province where many landslides cause high casualties in recent decades. it is significant that most of these landslides occur after a rainy period...