Search results for "REGENERATION"
showing 10 items of 889 documents
Optical Amplification in Hollow-Core Negative-Curvature Fibers Doped with Perovskite CsPbBr
2019
We report a hollow-core negative-curvature fiber (HC-NCF) optical signal amplifier fabricated by the filling of the air microchannels of the fiber with all-inorganic CsPbBr3 perovskite nanocrystals (PNCs). The optimum fabrication conditions were found to enhance the optical gain, up to +3 dB in the best device. Experimental results were approximately reproduced by a gain assisted mechanism based on the nonlinear optical properties of the PNCs, indicating that signal regeneration can be achieved under low pump powers, much below the threshold of stimulated emission. The results can pave the road for new functionalities of the HC-NCF with PNCs, such as optical amplification, nonlinear frequen…
Fra le reti e la città. Lo spazio delle nuove stazioni per l'Alta Velocità
2014
Between networks and cities: Architectural space in the new High-Speed train stations. Over the past thirty years, megainvestment rail projects in Western Europe have become powerful transformation vectors. An extensive literature addresses the issue with an urban engineering oriented approach, concerned primarily with the large scale and focusing on governance and urban planning. This monograph section of “Trasporti & Cultura” examines the relationship of new high-speed railroad stations to their cities. The objective is to investigate the depth and meaning of the transformations being wrought by the new stations, in a comparative international scenario. Articles on Japan and China are fol…
(Good Practice) Paris, Promenade Plantée. Recycling a landscape infrastructure
2014
The contribute describes the case of study of Promenade Plantée in Paris and the project of transformation of a dismissed urban infrastructure in a landscape resource.
INFLAMMATION AND TENTACLE REGENERATION RESPONSES IN ANEMONIA VIRIDIS (ANTHOZOA, CNIDARIA)
2019
Salutogenic design and regeneration for building heritage
2022
The design approach used is the SPCI “Salutogenic Park City Immersive” which focuses on the renaturation of urban living environments. A strategic role is played by the use of greening and landscaping design systems that are able to absorb a significant share of the country’s climate-changing gas emissions, as already partly highlighted by the European Green Deal. In particular, the key factors and methodologies of intervention are based on the interaction between Green City Adaptive and Resilient Design, in terms of physical redevelopment, environmental remediation and energy improvement, integrated with the enhancement of existing heritage. With the SPCI we intend to experiment with inter…
Tentacles regeneration in Anemonia viridis (Anthozoa, Cnidaria).
2019
SUSTAINABILITY AND ENVIRONMENTAL TRANSITION: PRINCIPLES AND DESIGN GUIDELINES
2021
In these times of constant precariousness and insecurity, debates on the need for environmental sustainability are on the increase. There is a need to regenerate urban areas both by transforming the existing heritage while respecting historical memory, and by proposing "renewed" neighbourhoods with smartness, according to the use of renewable energy sources, eco-building, intelligent mobility, with a view to ecological transition. Immediate responses are needed to resource depletion on the one hand and the need to protect the quality of natural and environmental capital on the other. To achieve these goals, cities are called upon to play the role of drivers of sustainable development. By en…
GREEN REVOLUTION AND BUILT HERITAGE: CONCEPTS AND PERSPECTIVES OF ENVIRONMENTAL REGENERATION
2021
Urban and environmental regeneration is now a priority on a planetary level, and the climate neutrality objectives set by Brussels inevitably require a new green and sustainable design of cities and a total revision of human behaviour in relation to nature. Environmental regeneration requires an inclusive practice of architecture capable of metabolising the adaptations and contradictions of the built environment. With this in mind, and with no claim to being exhaustive, we will examine some of the "enabling" conditions and "indispensable" reasons for leading a process of environmental regeneration of the built heritage, analysing the critical points relating to public responsibilities, the …
Moderate overexpression of glucose-6-phosphate dehydrogenase improves healthspan in mice. Implications in skeletal muscle regeneration
2019
An enormous increment in the average lifespan of diverse populations occurred worldwide in the 20th century. In the last 10–15 years, the importance has changed from extending average and even maximal longevity to favoring healthy aging, and many researchers have focused their studies on the aim at extending healthspan. Prolonging lifespan without taking care of improving healthspan can derive in a long time of living with disabilities and constitutes a risk factor for the old population to suffer a higher prevalence of aging-related diseases. Indeed, modern disease treatments frequently diminish mortality without any effect on the deterioration of overall health. Understanding the mechanis…
Column Adsorption Studies for the Removal of Ammonium Using Na-Zeolite-Based Geopolymers
2022
The aim of this study was to examine the removal of ammonium ions from a synthetic model solution by using Na-zeolite-based geopolymers. Na-zeolite (=analcime) is a residue from mining industry. Three adsorbents were prepared from Na-zeolite using different production steps and metakaolin as a blending agent. These novel adsorbents were investigated in a fixed-bed column system where the effects of different flow rates with the initial ammonium concentration of 40 mg/L were studied. The Thomas, Bohart–Adams and Yoon–Nelson breakthrough curve models fitted well with the experimental data with a high R2 value. After adsorption experiments, adsorbents were regenerated using a mixture of 0.2 M …