Materials Literature
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Diatoms are responsible for over 20% of the Earth's photosynthetic productivity, thus impact global fisheries, biogeochemical cycles and climate. However, marine primary productivity is limited by the micronutrient iron (Fe) in ~40% of the ocean. Diatoms inhabiting these regions have evolved unique physiological strat…
Os avanços na tecnologia dos biosensores tem vindo a revolucionar os cuidados de saúde, nomeadamente no diagnóstico de condições patológicas de forma rápida e eficaz, tornando o uso destes dispositivos uma realidade. O objetivo deste trabalho foi desenvolver tecidos condutores, sintéticos e naturais, compostos por pol…
Research was conducted into the development of a lab scale resin transfer molding (RTM) system for use in composite materials research and university education. A reactive injection mold (RIM) was converted into an RTM mold to produce flat 11”x 11” sandwich panels for destructive mechanical test specimens. The complet…
Nitrogen oxides (NOx) are formed during combustion in diesel engines and one current approach to reduce NOx to N2 is selective catalytic reduction with NH3 as reducing agent (NH3-SCR). To acquire both high activity and selectivity, the active site is often atomically dispersed metal atom, so-called single-site catalys…
Erbium doped titania and strontium titanate thin films were synthesized by the sol-gel method on the quartz glass, monocrystalline silicon and porous anodic alumina/silicon structures. Morphology of the surface and optical properties of the films were investigated. Luminescence spectra of the thin films show an intens…
Thanks to next-generation sequencing, the number of sequenced genomes grows rapidly, providing in particular ample examples for the sequence variability between homologous proteins. This article discusses data-driven probabilistic sequence models, which are able to extract a multitude of information from sequence data…
The results of simulation of the electron scattering rates in a single graphene layer without substrate are presented. High mobility of charge carriers, maximally obtained among all known materials, makes graphene a promising material for the creation of new semiconductor devices with good output characteristics. The…
The objective of this study is analysing the characteristics of five different solar cell technologies regarding their efficiency, fill factor, cost and environmental impacts and comparing their improvement records over years considering their efficiency. The five solar cell technologies of interest are amorphous sili…
During irradiation in a nuclear reactor, the fuel pellet experiences non-uniform fission rate and strong thermo-mechanical loads, which result in alterations and restructuring occurring non-homogeneously in the fuel volume. The irradiated fuel (see Fig. 1) is characterized by a highly heterogeneous structure, with a c…
This work provides a study on the influence of a rubbery compatibilizer on the morphology and on the physical properties of polypropylene (PP)/polyethylenetherephthalate(PET) melt spun fibers at different hot draw ratios. In particular, a sample of SEBS copolymer grafted with maleic anhydride was used as compatibilize…
Spintronics discusses about fundamental physics and material science in mostly nanometer size structures. Spintronics also delivers many promising technologies for now and the future. One of the interesting spintronic structures is called “Magnetic Tunnel junction” (MTJ). A typical MTJ consists of a thin (1-3nm) insul…
The effect of cold rolled reductions on microstructure and mechanical properties of TiNi alloys was investigated by means of tension test and TEM. From the results it can be determined that when the annealing temperature reached 550 , the recrystallization and grain growth began to occur after the cold deformation, an…
OLED's worden reeds succesvol geïmplementeerd in tv's en smartphones. Een volgende stap is het aanbrengen van deze organische lichtbronnen op textiel voor signalisatie- en reclamedoeleinden, maar dit gaat gepaard met enkele knelpunten. Ten eerste zijn de huidige productietechnieken te traag en te duur voor massaproduc…
Una vez que ha finalizado el tratamiento de ortodoncia y hemos otorgado al sistema estomatognático un excelente equilibro entre función y estética, respetando los principios biológicos, se procede al descementado de brackets y a la eliminación del adhesivo remanente del esmalte. Este es un momento crítico, donde surge…
As propriedades finais e o desempenho dos materiais são caraterísticas apreciadas por uma sociedade cada vez mais preocupada com o conforto e com fatores de segurança dos materiais com os quais contactam no seu dia-a-dia. Assim, este estudo teve como objetivo o desenvolvimento de métodos expeditos que permitissem aval…
Actualmente la industria de alimentos, es una de las de mayor generacion de residuos en sus diferentes niveles, produccion primaria, procesamiento y pos consumo. En este sentido, la industria de pina y yuca, no son la excepcion, y generan residuos por producto danado en poscosecha. Sin embargo estos residuos agroindus…
DOW Chemical awards "methane challenge grants" 2013 Small firms are developing technologies for converting natural gas to fuel and chemicals April 2015 Siluria technologies anounces successful start-up of demonstration plant for OCM APCRE 2017, Shanghai 6 Demonstration unit for OCM in La Porte (TX)• Strongly exothermi…
When designing light-responsive, healable materials and adhesives, these materials need to include controllable reversible, bonding interactions. Such dynamic interactions are difficult to control, however. In this work, we present how these interactions can be controlled by incorporating photoactive metal ions into s…
This study focuses on the development of (La(0.6)Sr(0.4))(0.95)Co(0.2)Fe(0.8)O(3-d) LSCF-based cathodes for solid oxide fuel cells, with the purpose of lowering operating temperature and improving cell performance for commercialization. The first part of the study investigated the effects of using Co3O4 as a sintering…
instrument for development of design rules for steel structures in seismic affected zones