10-05-2013 | Ferone, Claudio ; Colangelo, Francesco ; Roviello, Giuseppina ; Asprone, Domenico ; Menna, Costantino ; Balsamo, Alb ..., Materials, 2013

In this study the development of a metakaolin based geopolymeric mortar to be used as bonding matrix for external strengthening of reinforced concrete beams is reported. Four geopolymer formulations have been obtained by varying the composition of the activating solution in terms of SiO2/Na2O ...

more

08-05-2013 | Lin, Tai-Lin ; Lien, Hsing-Lung, International Journal of Molecular Sciences, 2013

Adsorption of precious metals in acidic aqueous solutions using thiourea modified magnetic magnetite nanoparticle (MNP-Tu) was examined. The MNP-Tu was synthesized, characterized and examined as a reusable adsorbent for the recovery of precious metals. The adsorption kinetics were well fitted ...

more

07-05-2013 | Casier, Renaud ; Lenders, Cyrille ; Lhernould, Marion Sausse; Gauthier, Michaël ; Lambert, Pierre, Sensors, 2013

This paper reports our work on developing a surface tension actuated micro-robotic platform supported by three bubbles (liquid environment) or droplets (gaseous environment). The actuation principle relies on the force developed by surface tension below a millimeter, which benefits from ...

more

07-05-2013 | Montero, David Sánchez; Vázquez, Carmen, Sensors, 2013

In this work a radio-frequency self-referencing WDM intensity-based fiber-optic sensor operating in reflective configuration and using virtual instrumentation is presented. The use of virtual delay lines at the reception stage, along with novel flexible self-referencing techniques, and using ...

more

29-04-2013 | Molenda, Janina ; Kulka, Andrzej ; Milewska, Anna ; Zając, Wojciech ; Świerczek, Konrad, Materials, 2013

LiFePO4 is considered to be one of the most promising cathode materials for lithium ion batteries for electric vehicle (EV) application. However, there are still a number of unsolved issues regarding the influence of Li and Fe-site substitution on the physicochemical properties of LiFePO4. ...

more

29-04-2013 | Ma, Yanjiao ; Wang, Rongfang ; Wang, Hui ; Liao, Shijun ; Key, Julian ; Linkov, Vladimir ; Ji, Shan, Materials, 2013

Two structural forms of a ternary alloy PtRuIr/C catalyst, one amorphous and one highly crystalline, were synthesized and compared to determine the effect of their respective structures on their activity and stability as anodic catalysts in methanol oxidation. Characterization techniques ...

more

29-04-2013 | Daimon, Tatsuya ; Nihei, Eisuke, Materials, 2013

In this study, we report the light-emitting assistance effect of perylene on a polymer electrochemiluminescence (ECL) device using poly(3-octylthiophene-2,5-diyl) (P3OT). An ECL device is a liquid type self-luminous device with a simple structure, and can be fabricated by a relatively easy ...

more

29-04-2013 | Tang, Xinhua ; Falletti, Emanuela ; Lo Presti, Letizia, Sensors, 2013

It is known that signal acquisition in Global Navigation Satellite System (GNSS) field provides a rough maximum-likelihood (ML) estimate based on a peak search in a two-dimensional grid. In this paper, the theoretical mathematical expression of the cross-ambiguity function (CAF) is exploited ...

more

23-04-2013 | Brundiers, Katja ; Wiek, Arnim, Sustainability, 2013

Problem- and project-based learning (PPBL) courses in sustainability address real-world sustainability problems. They are considered powerful educational settings for building students’ sustainability expertise. In practice, however, these courses often fail to fully incorporate ...

more

22-04-2013 | Balocco, Carla ; Marmonti, Enrico, Sustainability, 2013

The aim of this research is to study the possibility and sustainability of retrofit and refurbishment design solutions on historical buildings converted to different uses and often clashing with their original purpose and architectural features. The building studied is an ancient monastery ...

more