Made available in DSpace on 2022-04-28T18:57:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-02-01; The development of internal stress and texture in the oxide scales grown on Fe-15 at.% Al (1 0 0) and (1 1 1) single crystals at 700 °C was determined in situ using synchrotron X-ray diffraction. At this low oxidation temperature oxide scale thickness as revealed by X-ray photoelectron spectroscopy and ...
The elemental composition and bioaccessibility of the wild holothuroids Holothuria arguinensis, Holothuria forskali, and Holothuria mammata was studied. Nutritional and toxicological aspects were evaluated. H. mammata was the richest in Mn, Ni, As, Cd, Pb, and Hg; H. forskali had the highest Cu and I contents, 4.12–4.93 mg/kg dw and 28.02–28.26 mg/kg dw, respectively; and Summer H. arguinensis had high Se conte...
At the international level, the adoption of the BIM (Building Information Modeling) methodology is rapidly expanding and is already a reality in several countries. The level of implementation and maturity differ between different countries. Several governments are encouraging a paradigm shift in the construction sector, looking for this change to promote greater efficiency and productivity. However, for this ch...
Made available in DSpace on 2020-12-10T20:05:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-06-01; FCT; The focus of this study is to provide a comparative techno-economic analysis concerning the deployment of small-scale gasification systems in dealing with various fuels from two countries, Portugal and Brazil, for electricity generation in a 15 kWe downdraft gasifier. To quantify this, a mathematic...
RESUMO: A investigação multidisciplinar, o desenvolvimento e a inovação são pilares fundamentais para alterar o verdadeiro paradigma da economia baseada em recursos fósseis, de modo a conceber e implementar novas economias e mercados orientados para a utilização sustentável da biomassa. De modo a contribuir para uma economia de (muito) baixo carbono e gerar novas cadeias de valor através da utilização sustentáv...
The development of small-scale power generation units based on biomass gasification is an effective mean to meet the growth interest of deployment of local power generation exploiting endogenous renewable energy sources. However, significant research and development activities are required towards the deployment of cost-effective solutions suitable to be used in several applications and with different biomass f...
DNA was extracted from eleven bone samples using PrepFiler Express BTA™ Forensic DNA Extraction kit with AutoMate Express™ Forensic DNA Extraction System with 20 and 50 μL of elution volume. The objective was to compare extraction efficiency with different elution volumes, evaluating DNA recovery, profile quality and observing if sample concentration alters the degradation index (DI) and the presence of inhibit...
Made available in DSpace on 2018-12-11T16:49:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-01-01; A collaborative effort was carried out by the Spanish and Portuguese Speaking Working Group of the International Society for Forensic Genetics (GHEP-ISFG) to promote knowledge exchange between associate laboratories interested in the implementation of indel-based methodologies and build allele frequency...
This paper presents a comparative scaling analysis of two different sized pilot-scale fluidized bed reactors operating with biomass substrates. A multiphase Eulerian-Eulerian 2-D mathematical model was implemented, coupled with in-house user-defined functions (UDF) built to enhance hydrodynamics and heat transfer phenomena. The model validation was attained by comparison to experimental data gathered from both ...
Functional data appear in several domains of science, for example, in biomedical, meteorologic or engineering studies. A functional observation can exhibit an atypical behaviour during a short or a large part of the domain and this may be due to magnitude or to shape features. Over the last ten years many outlier detection methods have been proposed. In this work we use the functional data framework to investig...