Explorations of the A(1+)-RE(3+)-Mo(6+)-O(2-) (A(1+) is an alkali metal cation, RE(3+) is a rare-earth metal cation) quaternary systems prepared by the high-temperature solution growth method led to the title structure, sodium erbium bis-(molyb-date), NaEr(MoO(4))(2). It is isostructural to the scheelite structure (CaWO(4)) and is composed of [MoO(4)](2-) tetra-hedra with symmetry and [(Na/Er)O...

introduction one of the best methods in the diagnosis and control of breast cancer is mammography. the importance of mammography is directly related to its value in the detection of breast cancer in the early stages, which leads to a more effective treatment. the purpose of this article was to calculate the x-ray spectrum in a mammography system with monte carlo codes, including mcnpx and mcnp5...

Solid solution strengthening of the unordered γ matrix phase by alloying elements is great importance during creep Ni-based superalloys, particularly at high temperatures above 1000 °C. To study role different potent solutes, we have conducted experiments on binary Ni-2X alloys (X = Mo, Re, Ta, W) °C, 1050 and 1100 °C a constant stress 20 MPa. Compared to mechanical tests below 800 where size m...

In recent years, cloud computing research, specifically data replication techniques and their applications, has been growing. If the replicas number is raised put in multiple positions, it will be expensive to maintain usability, performance stability of application systems. this paper, two bio- inspired algorithms were proposed improve both selection placement environment. The suggested for dy...

Ni-Al-Mo based alloys can be used as materials for high temperature applications. They prepared by various techniques such an electron beam zone melting, which allows us to obtain the with a directionally solidified structure and unique properties. A plasma-melted Ni-Mo master alloy was preparation of experimental alloys. were melted in induction furnace then cast centrifugally form bars. These...

and the re ported angiographic in ci dence was 0.044%. Sin gle cor o nary ar tery with anom a lous or i gin of the right cor o nary ar tery (RCA) from the left main (LM) stem is even rarer and was once thought to be a be nign con di tion. As the anom a lous RCA orig i nates from the LM stem, it can pass an te rior to the pul mo nary trunk, pos te rior to the aor tic root, or be tween these two ...

The absence of a direct-to-indirect band gap transition in ReS2 when going from the monolayer to bulk makes it special among the other semiconducting transition metal dichalcogenides. The functionalization of this promising layered material emerges as a necessity for the next generation technological applications. Here, the structural, electronic, and magnetic properties of substitutionally dop...