101,899 research outputs found
Social Green Planning e Urban Planning ovvero della produzione giocosa di una tragedia di successo in quattro movimenti
No full textIl contributo riguarda la postfazione dell'intero volume. Nel contributo vengono rintracciate quattro chiavi di lettura: 1) non può esistere una pianificazione territoriale contemporanea se non è integrata; 2) la resilienza dell'ecologia nella pianificazione risiede nella capacità di cogliere i valori profondi che muovono la cittadinanza verso la autentica partecipazione; 3) Drammaturgia e Neuroscienze sono i due argomenti sullo sfondo del volume curato dai due autori: sono immanenti, sono le condizioni esterne che regolano, in caso di malfunzionamento o di proteste il piano/progetto di paesaggio confinando o limitando i protagonismi eventuali dei giocatori coinvolti; 4) il SGP è una strategia che non intende porsi come modello ma come superamento di tutti i modelli che ancora cercano di imporsi più per inerzia che per convinzione e che sbagliano solo perché tradiscono l’origine unitaria da cui provengono: la città dell’Uomo.
Nelle conclusioni l'autore della postfazione sostiene che qui la 'drammaturgia' è l’approccio adottato dall’uomo che, dovendo applicare il principio di resilienza non solo per opporsi all’immanenza della Natura ma soprattutto per risolvere i problemi creati proprio dai suoi simili (la Città malata che contagia la Terra), non fa che costruire e ricostruire dispositivi di autodistruzione. Ma questo approccio consente comunque all'uomo di ritrovare all’interno dei processi corruttivi e dissipativi i nuclei di natura da ricomporre per la riaccensione degli ecosistemi dentro la città esattamente nello stesso modo in cui l’infilling ricrea le trame dei tessuti urbani lacerati dal caos del consumo di suolo e di anima della perduta città delle persone umane
IL PROGRAMMA MESSAGGERI DELLA CONOSCENZA
Get PDFL'opportunità di frequentare un Corso di Ingegneria Naturalistica, offerta agli studnti dell'Università di Palermo, è stata determinata del programma Messaggeri della conoscenza promosso dal MIUR del 2012. Il Dipartimento di Architettura, intestatrio del progetto ID 181: Igegneria naturalistica per la progettazione paesaggistica in aree urbane degradate caratterizzate da clima Mediterraneo, attraversso il Laboratorio di Arte dei Giardini e Architettura del Paesaggio del prof. Giuseppe Guerrera, ha svolto le funzioni di coordinamento e promozione del Corso offrendolo agli studenti di Architettura, Ingegneria-Architettura, Igegneria Ambientale, Scienze Agrarie e Forestali. L'obiettivo dell'intervento didattico è stato l'incontro con un aspetto innovativo della ricerca sul recupero del degrado ambientale del territorio sviluppata in Portogallo e un'immediata applicazione dimostrativa realizzata nel campus Universitario e A Lisbona
Development and Use of Assistive Technologies in Spinal Cord Injury: A Narrative Review of Reviews on the Evolution, Opportunities, and Bottlenecks of Their Integration in the Health Domain
Get PDFAssistive technologies are increasingly taking a leading role in supporting people with spinal cord injury (SCI). This narrative review of reviews intends to contribute by making a map point investigating the integration of ATs in SCI. The methodology of the review was based on: (I) a search of PubMed and Scopus and (II) an eligibility assessment using specific parameters. The outcome highlighted the following: -The evolution of ATs considered in the context of SCI, considering ATs as both products and/or services in standalone and/or networked devices, and as processes of delivery. -Innovative technologies could play an important role in improving the quality of life and in minimizing costs in healthcare. -The international scientific community has identified ATs as one of the six strategic development areas in SCI. The overview also allowed the detection of some problems: (I) The ethical and regulatory aspects have been addressed in a weak way and only in specific and limited cases. (II) There is a lack of studies on the use and applications of ATs in SCI with a focus in multiple domains (e.g., costs, acceptance, dissemination, problems, regulatory aspects, ethical aspects, and other issues important for integration into the health domain). This review highlights the need for further studies and activities focused on integrating consensus in multiple domains, including ethics and regulations, to aid researchers and decision-makers in the field
Organic waste materials for Bioengineering works
Get PDFBioengineering uses plant and biodegradable materials of natural origin, stones, steel, additives and synthetic products in various combinations and as support for the growth of plants. The lack of available resources and progressive increasing of desertification in Sicily, led to the search for alternative materials. Objective of the work is testing organic waste materials for the realization of bioengineering works in the several areas of application: terrestrial, fluvial and coastline. To this aim, is proposed the use of innovative techniques that involve the construction of low-cost brushwood, environmentally friendly materials made: the pruning of vines and the oceanic Posidonia oceanica beached (banquette). The use of these two organic materials, which are a special solid waste, widely present in Sicily, is part of an efficient use of resources while respecting the environment. Assembled by hand or mechanically in the form of fascine or biocarpet, the residues of the vine pruning will constitute the modular element to achieve anti-erosion linear works while the residues of Posidonia oceanica (previously leached), constitute the growing media which, along sowing or planting of native species, make it "alive" the artefact
Seismic tomography tests applied to a gravity dam
No full textThe control of the safety assessment of a dam is largely dependent on knowledge of the mechanical parameters of the actual construction, as well as its geological substratum. The application of geophysical methods can be used in existing dams to evaluate the materials (strength properties) and to verify if they match design expectations, as well as to contribute to the safety control. In particular seismics methods can considerably contribute to the examination indicating the less consolidated material and the degradation of mechanical parameters.
For the characterization of the concrete conservation three seismic tomographies and a vertical seismic profile on the dam body were performed.The vertical seismic profile showed P-wave velocity ranging between 3800 m/s 4750 m/s and S-wave velocity ranging between 1100 m/s and 2520 m/s. Also in this case lower values are present in the upper part of the dam body, as well as show the three seismic tomographies. Even Poisson ratios show typical values of the concrete in good condition, varying between 0.29 and 0.41 (at the upper part of the dam body), which are representative values for concrete
An Innovative Soil Bioengineering Technique by Waste Materials: The RiVite Project
No full textThis paper describes the RiVite project granted by the Italian Ministry of Economic Development according to the JUMP (Joint Universities Program for PoC) program for patents enhancement, proposed by Sant’Anna School, Scuola Normale and the University of Palermo. The patent (Calvo, R., D’Asaro, F., Baiamonte, G.: Metodo per la realizzazione di un’opera costruttiva modulare per la protezione del territorio e detta opera. Attestato di Brevetto per Invenzione Industriale, n° 102,017,000,141,369, Ministero dello Sviluppo Economico, Roma, 27/02/2020.) consists of an advanced soil bioengineering work providing anti-erosion function, consolidating and stabilizing of slopes, thus for land protection. The technique is based on modular elements construction (Roll Modular Fascine, RFM, 40 cm × 60 cm) made with the residues of vine pruning collected with specialized agricultural machines. The RFMs are filled with a pre-seeded cultivation substrate, consisting of a mixture of beached Posidonia oceanica (L.) Delile, seeds of autochthonous species and coolant fluids. The wooden part of the work resists only for the time to rooting and development of the native species, after which the resistant action will be exerted by the root systems. The final work was realized connecting longitudinally the RFMs with cables or wire meshes. Differently from the common works, thanks to the assembling system, the proposed patented work is less time consuming, and reduces CO2 emissions because of reusing waste materials. The project was based on different prototypes, and the JUMP program made it possible to implement four prototypes in two areas near Etna volcano (Nicolosi, Giarre)
Quasi-static experimental path-following
No full textOur work aims to exploit structural nonlinearity in engineering, with a particular focus on aerospace applications, to develop well-behaved nonlinear structures [1].In addition to improved numerical methods, experimental validation of nonlinear structures is critical in ensuring their use in engineering applications, especially in conservative industries such as commercial aviation.Existing experimental techniques are unable to fully characterise the nonlinear response of even simple nonlinear structures, as they cannot measure structures with force-displacement responses that include limit points and snapping behaviour. An experimental method has been developed to extend our ability to measure the structural response of nonlinear structures [2]. In this presentation we will present our recent developments in experimental path-following on nonlinear structures.[1] G. Arena, R.M.J. Groh, A. Brinkmeyer, R. Theunissen, P.M. Weaver and A. Pirrera, Adaptive compliant structures for flow regulation, Proceedings of Royal Society A 473, 20170334 (2017)[2] R.M. Neville, R.M.J. Groh, A. Pirrera, M. Schenk (2018), Shape Control for Experimental Continuation, Physical Review Letters, 120(25), 254101 (2018
Uomo, paesaggio ed ambiente : un rapporto complesso
No full textThe relationship between man and the environment today is too complex to be explained in a few words. The simple observation of the high level of complexity of the relationship between man and the environment does not help to frame the deep reasons why it is right for man to find a balance in his relationship with the environment. The initial assumption is that the landscape is an analytical tool that allows us to interpret the relationship between man and the environment by reducing its level of complexity. This meaning becomes necessary for modern man who has enough technology to transform the whole Earth.
The contribution reflects on the garden as a) meaning (what it is) and on the sense (why it is right or simply appropriate to take care of it or even re-do it or do it from scratch). The landscape is certainly a useful tool for responsibly and consciously dealing with the complexity of the relationship between man and the environment but losing the sense of the profound value between man and nature in the face of the transcendent dimension presents the risk of relativizing beauty with respect to the economic-financial gain and political convenience of a social part with respect to the rest of the community
Naturalistic Hydroseeding
Get PDFThe applications usually want to restore an adequate level of vegetation cover, to contrast effectively erosion and slope instability, however, often neglecting the naturalistic appearance. Really we should combine the technical aspect with the naturalistic, aiming to eliminate non-native species from vegetation context and to guide the choice of usable herbaceous species. The study, carried out in a dump of a southern Italian town (Termini Imerese - Sicily), provided for the reconstitution of plant cover of 7.4 hectares through hydroseeding applied directly on the soil of the final covering, with waste often exposed. The aim of this study was the use of alternative hydroseeding with the use of native plants for the recovery of the vegetation cover and increase the biodiversity of the intervention zone. So have been selected 21 species with high biotechnical value: Graminaceae species (genus: Ampelodesmos, Oryzopsis, Cynodon, Festuca , Brachipodium, Lolium, Lygeum) and Leguminosae species (genus: Hedysarum, Lotus, Medicago). In addition, were used seeds of wild flowers, fertilizers, mulch of wood fiber and cellulose, organic and synthetic adhesives. Moreover, a search was conducted on the morphology and resistance to tensile efforts of the roots of three species of referring: Ampelodesmos mauritanicus (Poir.) Dur. & Schinz, Oryzopsis miliacea (L.) Asch. & Schweinf and Hedysarum coronarium L. The first results confirm that the natural hydroseeding with native plants creates an effective plant cover in deprived areas; it also helps increase biodiversity. Therefore, the methodology used appears to be a more sustainable alternative to traditional hydroseeding using a mixture of commercial seeds and nationality is in doubt. The validity of the approach is also confirmed by the good results of biotechnical reference species both in terms of speed of growth, that of radical density (RAR) and the tension breaking roots
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