Large-size Al3+/Nd3+ co-doped silica glass with 5000 ppm Nd3+ and 50,000 Al3+ doping concentrations was prepared by the modified sol-gel method combined high-temperature melting molding technology. Electron probe micro-analyzer tests indicated that high homogeneity achieved this sample preparation method. The spectral properties of ions were evaluated. Nd3+-doped fiber (NDF) a core-to-clad rati...

Computational results are reported for the ground and low-lying excited electronic states of Al(3)(-) and Al(3) and compared with the available spectroscopic data. In agreement with previous assignments, the six photodetachment transitions observed in the vibrationally resolved 488 nm photoelectron spectrum of Al(3)(-) are assigned as arising from the ground X (1)A(1) (')((1)A(1)) and excited (...

????????????(SLM)?????????? ??, ?????SLM?????????????, ????Al-Mn-Mg-Sc-Zr???????????, ???(Mg+Mn)??(Sc +Zr)???SLM?????, ????????SLM?????? ???????????????. ????, ???????? SLM???, ?????????99.82%. SLM???????? ???-???????. ???????Al6Mn?Al3(Sc,Zr)?? ????, ??????????Al6Mn????, ?????? ?????????????????????????. ? 300°C?????, ????????????????, ??? ??????????600 MPa, ??????SLM?????? ???, ??????????. ???...

Sphingolipids is characterized to be composed of a unique fatty amino alcohol, so-called long-chain base (LCB) or sphingoid base, most of which are linked to a fatty acid via amide bond to form ceramide and more complex sphingolipids following further glycosylation and/or phosphorylation of the ceramide backbone (Figure 1). Sphingolipids are conserved ubiquitously in eukaryotes and a few specie...

Rechargeable aqueous aluminium batteries are the subject of growing interest, however, charge storage mechanisms at manganese oxide-based cathodes remain poorly understood. In essense, every study proposes a different mechanism. Here, an in situ spectroelectrochemical methodology is used to unambiguously demonstrate that reversible proton-coupled MnO2-to-Mn2+ conversion main mechanism occurring...

The effect of zirconium on the microstructure, phase composition, and mechanical properties AlCuYb AlCuGd alloys was studied. microstructure as-cast did not consist new intermetallic phases with other elements, so fully dissolved in aluminum matrix. AlCuYbZr/AlCuGdZr demonstrated higher hardness values compared to AlCuYb/AlCuGd due precipitation Al3(Zr,Yb) Al3(Zr,Gd) phases, which were formed d...

HIGHLIGHTS • A strain of Penicillium citreosulfuratum was isolated from corroded metal. The fungus formed biofilm on the surface aluminum wire. This grew in presence 50 mM Al3+ liquid medium. Thyme, oregano, and melaleuca essential oils inhibited this growth.