Precipitate distributions were quantitatively measured by local electrode atom-probe (LEAP) tomography in several age-hardenable Al-based alloys to provide input to both analytical models and dislocation dynamics simulations of critical resolved shear strength, for comparison with experimentally measured Vickers microhardness values. The method of reconstructing precipitate-containing volumes f...

A simple 2-hydroxy-1-naphthaldehyde (receptor 1) serves as a selective chemosensor for Al(3+) based on chelation-enhanced fluorescence (CHEF). The receptor 1 exhibited a high association constant with micromolar detection for Al(3+) in EtOH-H(2)O solution.

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...