Abstract:The smart and resilient city evolves by slow procedures of mutation without radical changes, increasing the livability of its territory. The value of the city center in a Smart City can increase through urban lighting systems: its elements on the territory can collect and convey data to increase services to city users; the electrical system becomes the so-called Smart Grid. This paper presents a study of smart lighting for a small town, a touristic location inside a nature reserve on the Italian coast. Three different approaches have been proposed, from minimal to more invasive interventions, and their effect on the territory has been investigated. Based on street typology and its surroundings, the work analyzes the opportunity to introduce smart and useful services for the citizens starting from a retrofitting intervention. Smart city capabilities are examined, showing how it is possible to provide new services to the cities through ICT (Information and Communication Technology) without deep changes and simplifying the control of basic city functions. The results evidence an important impact on annual energy costs, suggesting smart grid planning not only for metropolis applications, but also in smaller towns, such as the examined one.

No abstract

No abstract

No abstract

Studies about sleep deprivation in Space suggest the desynchronization of astronauts' circadian rhythm during the mission. This alteration could be caused by the absence of natural light variation in Space, together with low illuminance levels existing within the habitat. The paper proposes a new dynamic lighting approach suited for Space habitats reproducing Earth daylight variation by means of electrical light sources. In a daily schedule, the artificial lighting variation from 7 a.m. to 11 p.m. was planned according to previous studies about melatonin secretion and physiological parameters variation in human body. Variations of illuminance (E) level and Correlated Colour Temperature (CCT) are obtained using the new LED technology, a light source suitable for Space applications. Results obtained suggest that the proposed scheduled lighting scenarios produce the proper conditions for astronauts' circadian rhythm regulation and cognitive performance