Synthesis and properties of biogenic magnetite synthetic analogues

Detection and Function of Biogenic Magnetite

ii Gerade Tatsachen gibt es nicht, nur Interpretationen.

Big discovery for biogenic magnetite.

O ne of the most significant characteristics of the Anthropocene (the present age of geologic time) is the rate at which humans are perturbing the global carbon cycle. The potency of carbon dioxide and methane as greenhouse gases and their effects on Earth’s temperature balance is well established (1), and the myriad of climate and ecological changes and feedbacks in response to this abrupt war...

Magnetite (Fe3O4): Properties, Synthesis, and Applications

some properties of fuzzy hilbert spaces and norm of operators

in this thesis, at first we investigate the bounded inverse theorem on fuzzy normed linear spaces and study the set of all compact operators on these spaces. then we introduce the notions of fuzzy boundedness and investigate a new norm operators and the relationship between continuity and boundedness. and, we show that the space of all fuzzy bounded operators is complete. finally, we define...

Controlled cobalt doping in biogenic magnetite nanoparticles.

Cobalt-doped magnetite (CoxFe3 -xO4) nanoparticles have been produced through the microbial reduction of cobalt-iron oxyhydroxide by the bacterium Geobacter sulfurreducens. The materials produced, as measured by superconducting quantum interference device magnetometry, X-ray magnetic circular dichroism, Mössbauer spectroscopy, etc., show dramatic increases in coercivity with increasing cobalt c...