Electron–phonon-coupling effect can generate the direct lasing beyond fluorescence spectrum of gain medium, but laser efficiency is still low owing to weak multiphonon-coupling intensity. Herein, associated with three-phonon-assisted electron transitions 1100 nm, tunable generation from 1125 1155 nm and highly efficient continuous-wave lasers at 1131 1140 in a ytterbium-doped YCa4O(BO3)3 crysta...

Akımsız nikel esaslı kaplamalar, malzemelerin aşınma, sertlik ve korozyon gibi yüzey özelliklerini iyileştirmek için mükemmel bir yöntemdir. Alüminyum alaşımları ise ucuzluk hafiflik özelliklerinden dolayı birçok uygulamada kullanılmaktadır. alaşımlarının bu iyi özelliklerinin yanında, düşük özellikleri endüstrideki bazı kullanım alanlarını sınırlar. Bu çalışmada, alüminyum (6xxxx) yüzeye akıms...

Negli anni di passaggio dal XII al XIII secolo, il cisterciense Garnerio Rochefort si dedica alla composizione un breve trattato, De contrarietatibus in Sacra Scriptura. L’opera, tuttora inedita, fa ricorso all’uso delle arti sermocinali per risolvere le ambiguità scritturali. Nel prologo del emerge peculiare interesse verso la disciplina della retorica e, particolare, l’impiego figure tropiche...

This study was designed to examine carbon utilization within scalable microalgae production systems. Neochloris oleoabundans was produced in replicated troughs containing BG11 nutrient formulation. Atmospheric CO(2) was supplemented with ∼5% CO(2) or with NaHCO(3), and the pH of troughs receiving NaHCO(3) was adjusted with HCl or H(3)PO(4). Peak biomass concentrations reached 950, 1140, or 850 ...

The Personal Globe Inventory (PGI) proposes a unified model of vocational interests, integrating Holland's established interest dimensions, with occupational prestige dimensions. current study evaluates the structural validity PGI short form in Vietnam (N = 1140). results randomized tests hypothetical order relations support inclusion spherical model, as means to better calibrate assessment acr...

Terracotta clay is a natural resource that has the potential as raw material in ceramic field. This study investigates effects of color glaze using terracotta powder an alternative substance for colorants formulation. proportionately added to formulations determine at temperatures ranging from 1140 °C 1200 °C. The content bounded with potash feldspar, silica, zinc oxide, and calcium carbonate. ...

We report the preparation of highly ordered mesoporous Fe-Al-SBA-15 with isolated extraframework Fe species under acidic conditions. The materials were characterized by means of UV resonance Raman spectroscopy, in conjunction with BET, XRD, TEM, UV-vis, H2-TPR, FT-IR, and 27Al MAS NMR spectroscopy. The addition of both Fe and Al to the synthesis gel of SBA-15 results in the formation of isolate...