Produção de biogás a partir do glicerol oriundo do biodiesel.

bitstream/item/55346/1/COT11018.pd

Restoration of Hypoglycemia Awareness After Islet Transplantation

OBJECTIVE—To determine the impact of islet transplantation (ITx) on hypoglycemia awareness in patients with unstable type 1 diabetes and its relation to islet function

Ordered La0.7Sr0.3MnO3 nanohole arrays fabricated on a nanoporous alumina template by pulsed laser ablation

Highly ordered nanohole arrays of [Formula: see text] manganite have been synthesized using pulsed laser deposition on nanoporous alumina template. Their structure and phase formation were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), energy dispersive x-ray spectroscopy (EDX) and x-ray diffraction (XRD). The magnetic measurements were performed with respect to temperature and field and exhibit a ferromagnetic to paramagnetic transition at 284 K. In addition, the temperature dependence of electrical resistance was measured at different magnetic fields and an insulating phase throughout all the temperatures was observed. The low temperature ferromagnetic insulating state is discussed by the presence of a canted ferromagnetic state induced by the nanoholes. The present work shows the feasibility of combining both the nanoporous alumina template and pulsed laser ablation for the fabrication of perovskite manganite nanohole arrays which can also be extended to fabricate other multicomponent oxide nanohole materials.M K is thankful to FCT, Portugal for the Grant No. SFRH/ BPD/75110/2010. The authors acknowledged the financial supports from the projects NORTE-07–0124-FEDER000070, CERN/FIS-NUC/0004/2015 and IF/00686/2014

Optical study of strained double Ge/Si quantum dot layers

status: publishe

Biodegradabilidade anaeróbia dos resíduos provenientes das cadeias produtivas dos biocombustíveis: bagaço do dendê.

bitstream/item/82257/1/BIODEGRADABILIDADE-BAGACO-DO-DENDE.pd

Colloidal Quantum Dot Color Converters for Visible Light Communications

The properties and performance of CdSSe/ZnS colloidal quantum dot composite materials for use as InGaN LED color converters in visible light communications applications is reported. 500Mb/s optical wireless transmission is demonstrated