Search results for " air"
showing 10 items of 703 documents
BVLOS UAS Operations in Highly-Turbulent Volcanic Plumes.
2020
Long-range, high-altitude Unoccupied Aerial System (UAS) operations now enable in-situ measurements of volcanic gas chemistry at globally-significant active volcanoes. However, the extreme environments encountered within volcanic plumes present significant challenges for both air frame development and in-flight control. As part of a multi-disciplinary field deployment in May 2019, we flew fixed wing UAS Beyond Visual Line of Sight (BVLOS) over Manam volcano, Papua New Guinea, to measure real-time gas concentrations within the volcanic plume. By integrating aerial gas measurements with ground- and satellite-based sensors, our aim was to collect data that would constrain the emission rate of …
A view of the vegetation and economic exploitation of the forest in the Late Neolithic sites of Les Jovades and Niuet (Alicante, Spain)
1992
SummaryThe results of the charcoal analysis obtained in two open air sites of the Late Neolithic, although contrasting with what is known so far about their economy, as well as with the results of different palaeoamblental studies undertaken in other sites, mainly caves with long sequences, within the same area or in other near areas, form the main interest of this paper. We will begin presenting the data pertaining to both sites individually which, in the final part, will be assessed in order to reach a better understanding of the relationship between men and their natural environment during the Neolithic period.
Towards resilient cities: Advancements allowed by a multi-criteria optimization tool to face the new challenges of European Union’s climate and energ…
2019
Abstract The United Nations as well as the European Union are strongly committed in promoting a transition towards more sustainable and resilient cities. Indeed, they are increasingly affected by different types of threats, among which the natural ones such as earthquakes, fires, and floods (shocks) and climate variability (stresses). Cities are quite often unable to cope with the adverse effects of such natural hazards. This circumstance leads to the need of introducing resilience-related criteria (besides commonly used sustainability indicators) in decision-making processes. This paper investigates at which extent the inclusion of such new indicators, within multi-criteria assessment tool…
Guided Wave Techniques for Damage Detection in Composite Aerospace Structures
2018
Composite materials make up an increasing portion of today’s aerospace structures (see, e.g. Boeing 787 and Airbus 380). These aircrafts’ fuselage, for example, is composed of a laminated composite skin connected to composite stringers and C-frames. Of primary importance is the detection of damage in these built-up structures, whether caused by the manufacturing process or in service (e.g. impacts). A related issue is the characterization of the composite (visco)elastic mechanical properties, that can also be related to the quantification of potential damage. Guided elastic waves propagating in the ~100s kHz regime lend themselves to provide the necessary sensitivity to these two conditions…
Open-air Conservation of Ruins and the Concept of “Non-Dislocation”
2012
Most of the on-going debate is about “how” to protect archaeological ruins, whilst at the same time allowing the general public to enjoy them. Today it is clear how important it is, from the actual planning stages of excavations, to interact with experts from other disciplines, who are working on their own findings and offering them up for collective enjoyment. Whatever might be feasible for an indoor museum is not always feasible with an architectonic ruin, as regards both presenting objects with explicative apparatus that determines their significance, and exploring them in a new way when interpretations change or new ideologies are introduced. First of all, conserving excavations is the …
Debate académico de puertas abiertas como herramienta para estimular el pensamiento crítico y la orientación científica: una experiencia piloto
2018
Se presenta una experiencia piloto realizada durante la primavera de 2018 en el Jardí Botànic de la Universitat de València. La experiencia reunió a 24 estudiantes de las titulaciones de Sociología, Educación Primaria y Psicología de la misma universidad (6 estudiantes de cada titulación), más 6 estudiantes de diferentes titulaciones académicas, incluyendo máster y doctorado. El objetivo principal del estudio piloto es analizar la percepción y la efectividad de un seminario de debate académico llevado a cabo al aire libre, y con la participación de alumnos de diferentes ámbitos académicos. Se organizó en tres sesiones de tres horas cada una, con una distribución preestablecida de roles entr…
The Importance of Air Connectivity and the Impact on Romanian Airports
2019
In a world where passenger air travel is set to keep a positive growth rate over the years, airports all over the world are striving to increase their connectivity rate by attracting different airline companies, either for point to point connections or hub connectivity to wider the number of destinations reached from the airport to all over the world via a hub. From an airport perspective, creating a strategy to increase the connectivity performance index requires a lot of market analysis, following latest developments of hub connections from all over Europe, as hub connectivity tends to change on a yearly basis. Airport connectivity performance is directly linked to growth, studies (ACI Eu…
A CASE STUDY OF THE INDOOR AIR QUALITY IN SCHOOLS BELONGING TO AN AREA OF THE SICILIAN ISLAND INTERESTED BY THE PRESENCE OF PETROCHEMICAL REFINERIES
2021
The indoor environmental quality is a topic particularly relevant for schools; this category of confined environments is, indeed, occupied by subjects (i.e. children), which are thought to be more vulnerable than adults to the negative health effects of poor indoor air quality, and whose learning process has long been recognized to be influenced by the quality of the indoor environment. This paper presents results of a study concerning the inside air quality of schools in four small towns sited in the southern part of Sicily, interested by the presence of a petrochemical refinery in the surrounding territory. The performed analysis made it possible to highlight the main criticalities regard…
Metālu biopieejamība un imobilizācija barības ķēdes segmentā augsne-augs
2015
Maģistra darba mērķis – izvērtēt vidi piesārņojošo metālisko elementu mobilitāti un biopieejamību barības ķēdes segmentā augsne-augs atkarībā no dažādu augsnes piedevu, piemēram, sapropelis, māls un arī uz sapropeļa un māla bāzes veidotu piedevu pievienošanas augsnēm. Sapropeļa kā augsnes piedevas ietekme uz augu attīstību tika vērtēta pēc dīgšanas un augu agrīnās attīstības testiem, izmantojot trīs kultūraugu (gurķu, tomātu, ganību airenes) sēklas. Darbā tika novērtēta Zn, Pb, Cd un Cu imobilizācija un biopieejamība, izmantojot augsnes ūdens un NH4NO3 ekstrakciju metodes. Augsnes piedevu faktiskā ietekme uz elementu biopieejamību tika noteikta piesārņotā augsnē ar pievienotām piedevām kult…
Rompé tus barreras: Un análisis sobre el uso del coaching ontológico en la plataforma de entrenamiento de Nike en Buenos Aires
2020
In recent times, coaching has become relevant in heterogeneous discourses and practices in the economic, political and cultural fields of contemporary societies. Based on our ethnographic analysis of different training sessions on the Nike+ Run Club platform in Buenos Aires, in this article we study how ontological coaching operates in the field of sport and races. Then, we ask about how people who attend this platform appropriate coaching techniques to manage emotions, moods, and body effects according to the business entrepreneurship logic. Through this work, the ethnographic results are articulated with a reflection about the theory, practice, and values of the ontological coaching, wher…