Intelligent Packaging Systems: Sensors and Nanosensors to Monitor Food Quality and Safety

Indexación: Web of Science y Scopus.The application of nanotechnology in different areas of food packaging is an emerging field that will grow rapidly in the coming years. Advances in food safety have yielded promising results leading to the development of intelligent packaging (IP). By these containers, it is possible to monitor and provide information of the condition of food, packaging, or the environment. This article describes the role of the different concepts of intelligent packaging. It is possible that this new technology could reach enhancing food safety, improving pathogen detection time, and controlling the quality of food and packaging throughout the supply chain.https://www.hindawi.com/journals/js/2016/4046061/cta

Big Data on Decision Making in Energetic Management of Copper Mining

Indexado en: Web of Science; Scopus.It is proposed an analysis of the related variables with the energetic consumption in the process of concentrate of copper; specifically ball mills and SAG. The methodology considers the analysis of great volumes of data, which allows to identify the variables of interest (tonnage, temperature and power) to reach to an improvement plan in the energetic efficiency. The correct processing of the great volumen of data, previous imputation to the null data, not informed and out of range, coming from the milling process of copper, a decision support systems integrated, it allows to obtain clear and on line information for the decision making. As results it is establish that exist correlation between the energetic consumption of the Ball and SAG Mills, regarding the East, West temperature and winding. Nevertheless, it is not observed correlation between the energetic consumption of the Ball Mills and the SAG Mills, regarding to the tonnages of feed of SAG Mill. In consequence, From the experimental design, a similarity of behavior between two groups of different mills was determined in lines process. In addition, it was determined that there is a difference in energy consumption between the mills of the same group. This approach modifies the method presented in [1].(a)http://www.univagora.ro/jour/index.php/ijccc/article/view/2784/106

Energy saving behaviours among social housing tenants: Exploring the relationship with dwelling characteristics, monetary concerns, and psychological motivations

Increasing our understanding of the factors that influence energy saving behaviour could help in the development of more effective energy saving interventions. This paper describes the first phase of the EnerGAware project which aims to develop a serious game for social housing tenants in the UK. A survey was conducted to inform the design of the game, which investigated the relationship between psychological factors, context-specific factors (i.e. dwelling characteristics and monetary concerns), and energy saving behaviours. In total, 537 households completed a postal survey, with a response rate of 19.4%. The results showed that experiencing difficulty in keeping the home comfortably warm in winter related to behaviour. In particular, concerns about the affordability of heating seemed to be related to more frequent heating-related energy saving behaviours. Experiencing issues with overheating, damp, mould or condensation – and general concerns about energy bills, did not relate to energy saving behaviours. Overall, the psychological factors measured in the study related more strongly to energy saving behaviours; especially the ability to imagine energy use and strong social norms had a positive relationship with energy saving behaviour. The implications of the findings for the design of the serious game are discussed. Thus, the study uses a combined approach examining psychological and contextual factors to illustrate how important behavioural motivators relevant to a specific group of householders can be included in the design of an intervention

High-pressure study of substrate material ScAlMgO4

We report on the structural properties of ScAlMgO4 studied under quasi-hydrostatic pressure using synchrotron high-pressure x-ray diffraction up to 40 GPa. We also report on single-crystal studies of ScAlMgO4 performed at 300 K and 100 K. We found that the low-pressure phase remains stable up to 24 GPa. At 28 GPa, we detected a reversible phase transformation. The high-pressure phase is assigned to a monoclinic distortion of the low-pressure phase. No additional phase transition is observed up to 40 GPa. In addition, the equation of state, compressibility tensor, and thermal expansion coefficients of ScAlMgO4 are determined. The bulk modulus of ScAlMgO4 is found to be 143(8) GPa, with a strong compressibility anisotropy. For the trigonal low-pressure phase, the compressibility along the c-axis is twice than perpendicular one. A perfect lattice match with ZnO is retained under pressure in the pressure range of stability of wurtzite ZnO.Comment: 22 pages, 5 figures, 4 tables, 24 reference

Notas briológicas de la provincia de Vizcaya. I. Estudio de las comunidades de esfagnos del Puerto de Urquiola

Hemos estudiado los esfagnos y las comunidades higro-turbosas del Puerto de Urquiola (Vizcaya). Se han recolectado 10 especies de Sphagnum, de ellas, 8 especies son nuevas citas para Vizcaya.Del estudio fìtosociológico de las comunidades, se describe la subasociación Sphagnetosum crassicladi subas. nova.We have studied the sphagnum and the damp boggy comunities of the Puerto de Urquiola (Vizcaya). We have collected 10 species of Sphagnum, from these, 8 species are new records for Vizcaya. From the syntaxonomic study of the comunities, we describe for the first time Helodo-Sphagnetum Lemée 1937, Sphagnetosum crassicladi subas. nova

Enrichment in critical metals (In-Ge) and Te-Se in epithermal deposits of the 'La Carolina' district, San Luis, Argentina

This study was supported by the ‘Proyecto de Ciencia y Técnica P-3-2-0414, of the National University of San Luis’ and by the Project CGL2016-76532-R from the MINECO of Spai

Solución de problemas no lineales con restricciones usando DIRECT y una función Lagrangeana aumentada

Publicado em CD-ROMEn este trabajo se pretende hacer la resolución de problemas no lineales con restricciones a través de la utilización del algoritmo DIRECT y de una función Langrangeana aumentada. DIRECT es un método deterministico de optimización global. Ha sido hecha una extensión de DIRECT para resolver problemas con restricciones de tipo igualdad y desigualdad, a través de la utilización de métodos de penalización basados en la función Langrangeana aumentada, teniendo como base los métodos de los multiplicadores. La idea central es resolver el problema de optimización con restricciones a través de la resolución de una sucesión de sub-problemas más simples, esos problemas apenas con restricciones de límites simples, que serán resueltos por DIRECT. Por último, para evaluar el desempeño del método, fue aplicado el método en un conjunto de problemas bien conocidos de optimización global y comparado con otras estrategias

Evaluating Conformance to WCAG 2.0: Open Challenges

Web accessibility for people with disabilities is a highly visible area of work in the field of ICT accessibility, including many policy activities in several countries. The commonly accepted guidelines for web accessibility (WCAG 1.0) were published in 1999 and have been extensively used by designers, evaluators and legislators. A new version of these guidelines (WCAG 2.0) was published in 2008. In this paper we point out the main challenges that WCAG 2.0 raises for web accessibility evaluators: the concept of "accessibility supported technologies"; success criteria testability; technique and failure openness, and the aggregation of partial results. We conclude the paper with some recommendations for the future

Coccolithophore biodiversity controls carbonate export in the Southern Ocean

Southern Ocean waters are projected to undergo profound changes in their physical and chemical properties in the coming decades. Coccolithophore blooms in the Southern Ocean are thought to account for a major fraction of the global marine calcium carbonate (CaCO3) production and export to the deep sea. Therefore, changes in the composition and abundance of Southern Ocean coccolithophore populations are likely to alter the marine carbon cycle, with feedbacks to the rate of global climate change. However, the contribution of coccolithophores to CaCO3 export in the Southern Ocean is uncertain, particularly in the circumpolar subantarctic zone that represents about half of the areal extent of the Southern Ocean and where coccolithophores are most abundant. Here, we present measurements of annual CaCO3 flux and quantitatively partition them amongst coccolithophore species and heterotrophic calcifiers at two sites representative of a large portion of the subantarctic zone. We find that coccolithophores account for a major fraction of the annual CaCO3 export, with the highest contributions in waters with low algal biomass accumulations. Notably, our analysis reveals that although Emiliania huxleyi is an important vector for CaCO3 export to the deep sea, less abundant but larger species account for most of the annual coccolithophore CaCO3 flux. This observation contrasts with the generally accepted notion that high particulate inorganic carbon accumulations during the austral summer in the subantarctic Southern Ocean are mainly caused by E. huxleyi blooms. It appears likely that the climate-induced migration of oceanic fronts will initially result in the poleward expansion of large coccolithophore species increasing CaCO3 production. However, subantarctic coccolithophore populations will eventually diminish as acidification overwhelms those changes. Overall, our analysis emphasizes the need for species-centred studies to improve our ability to project future changes in phytoplankton communities and their influence on marine biogeochemical cycles.info:eu-repo/semantics/publishedVersio