نتایج جستجو برای: ferro fluid
تعداد نتایج: 222666 فیلتر نتایج به سال:
We discovered ferromanganese nodules that measure up to 46 cm in diameter with stromatolitic growth patterns in the western central near-shore portion of Second Connecticut Lake, Pittsburg, New Hampshire. They occur as four distinct morphotypes: irregular laminated convex plates that form concentric rings around a nucleating center ("domed-plate"), continuous pustular pavements that extend >10 ...
In this paper, the theoretical study on laminar boundary-layer flow of ferrofluid with influences magnetic field and thermal radiation is investigated. The viscosity over a solid sphere surface examined theoretically for magnetite volume fraction by using equations. governing equations are derived applied non-similarity transformation then solved numerically utilizing Keller-box method. It foun...
OBJECTIVE To determine the relationship between biomarkers of exposure, disease and susceptibility, and early health effects and long-term diseases related to occupational manganese (Mn) exposure. DESIGN Baseline survey of a longitudinal cohort study of workers in a ferromanganese refinery. PARTICIPANTS A total of 1888 individuals (1197 men, 691 women; average seniority 15.34 years) were en...
A questão ambiental tem sido motivo de ampla discussão em nível nacional e internacional, face à exploração desenfreada dos recursos naturais enorme geração resíduos por parte da indústria. reciclagem sólidos é uma das formas atenuar o proble- ma, reduzindo, conseguinte, impacto ambiental. Esta pesquisa objetivou caracterizar a escória ferro-cromo como agregado graúdo para produção concreto. Os...
2014 The renormalization group techniques are applied, for the first time, to surface magnetism in bulk magnets, for all signs of surface and bulk coupling constants. The q-state Potts model is specifically focused upon, and an interesting q-evolution of the phase diagram is exhibited. In particular the Ising model (q = 2) presents a remarkable feature in the case of competing bulk-and surface ...
Resonance Raman spectra of horseradish peroxidase (HRP) in the 200 to 600 cm" region were measured for the reduced and oxidized states and in the presence and absence of substrate, For the reconstituted HRP with a S4Fe-substituted heme, the Raman line of ferro HRP at 244 cm" was shifted to 246 cm" but all other modes remained unshifted. The amount of the frequency shift agreed with that observe...
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