796 research outputs found

    I casi pilota

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    I paragrafi "Risorse imprenditoriali" ed "Energia grigia" (p. 72-74) sono stati scritti con Nadia Battaglio; "Produzione di energia da fonti rinnovabili" (p. 74-90) con Francesco Stassi; "Ranco Sotto, occasione di sperimentazione" (p. 91-99) con Nadia Battaglio; "Caso studio valle Varaita" (p. 100-105) con Francesco Stassi

    I casi pilota

    No full text
    I paragrafi "Risorse imprenditoriali" ed "Energia grigia" (p. 72-74) sono stati scritti con Nadia Battaglio; "Produzione di energia da fonti rinnovabili" (p. 74-90) con Francesco Stassi; "Ranco Sotto, occasione di sperimentazione" (p. 91-99) con Nadia Battaglio; "Caso studio valle Varaita" (p. 100-105) con Francesco Stassi

    Il progetto pilota

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    I paragrafi "Esempio applicativo di rilievo costruttivo finalizzato al recupero antisismico" (p. 52-55) e "Indicazioni preliminari per il consolidamento" (p. 55-56) sono di Corrado Curt

    Centroid-based Cluster Analysis of HVSR Data for Seismic Microzonation

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    Horizontal to Vertical Spectral Ratio (HVSR) datasets acquired for studies of seismic microzoning in various urban centers of Sicilian towns, have been used to test clustering analysis through a nonhierarchical centroid-based algorithm. In this context clustering techniques may be useful to identify areas with similar seismic behaviour through HVSR data. Centroid-based algorithms generally require the number of clusters, k, and the initial centroid coordinates to be specified in advance. This aspect is considered to be one of the biggest drawbacks of these algorithms. The proposed algorithm doesn’t limit the number of k clusters and choose the initial centroids automatically from the data set. Azimuthal variation of the H/V peaks was also taken into account. Finally different partitions obtained using the centroid-based algorithm were superimposed on the geological map of the analyzed sites to identify possible correlations with geology and topography. The obtained results underline how the most appropriate clustering algorithm for a particular site often needs to be chosen experimentally. In fact in many cases the choice of the partition is strongly linked to the choice of parametric distance and to geological knowledge, while in other cases, the results showed similar results regardless of a priori choices

    Crystallization of TiO2 Nanotubes by In Situ Heating TEM

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    The thermally-induced crystallization of anodically grown TiO2 amorphous nanotubes has been studied so far under ambient pressure conditions by techniques such as differential scanning calorimetry and in situ X-ray diffraction, then looking at the overall response of several thousands of nanotubes in a carpet arrangement. Here we report a study of this phenomenon based on an in situ transmission electron microscopy approach that uses a twofold strategy. First, a group of some tens of TiO2 amorphous nanotubes was heated looking at their electron diffraction pattern change versus temperature, in order to determine both the initial temperature of crystallization and the corresponding crystalline phases. Second, the experiment was repeated on groups of few nanotubes, imaging their structural evolution in the direct space by spherical aberration-corrected high resolution transmission electron microscopy. These studies showed that, differently from what happens under ambient pressure conditions, under the microscope’s high vacuum (p < 10−5 Pa) the crystallization of TiO2 amorphous nanotubes starts from local small seeds of rutile and brookite, which then grow up with the increasing temperature. Besides, the crystallization started at different temperatures, namely 450 and 380 °C, when the in situ heating was performed irradiating the sample with electron beam energy of 120 or 300 keV, respectively. This difference is due to atomic knock-on effects induced by the electron beam with diverse energy

    Approfondimenti lessicali "La vita delle parole"

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    Le schede lessicali approfondiscono etimologia, significati, evoluzione, presenza letteraria e legami con altri idiomi delle voci laude, lussurioso, doglia, mondo, signore, furore, gentile, usanza, salute, spiriti, sospira, cortesia, intelletto, valore, malinconia, orazione, vago, aere, diletto, sembianza, vulgo, venturaThese lexical boxes deepen the etymology, meanings, evolution, literary uses and relationships with other languages of the words "laude, lussurioso, doglia, mondo, signore, furore, gentile, usanza, salute, spiriti, sospira, cortesia, intelletto, valore, malinconia, orazione, vago, aere, diletto, sembianza, vulgo, ventura

    Approfondimenti lessicali "La vita delle parole"

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    Le schede lessicali approfondiscono etimologia, significati, evoluzione, presenza letteraria e legami con altri idiomi delle voci agonia, immonda, spasimi, assioma, lucrosi, moroso, sintomo, laureato, reduce, ilare, a canto, gelosia, birbante, successione, roba, fissazione, trame, fratte, esala, laboriosa, gitane, chimere, vertigine, anella, accora, cimenti, cubiti, aneliti, gioia, vorace, disdegnoso, favola, tumide, adamantino, ipocrita, ancipiti, fiamma, inetto, scabrosa, burocrazia, reticenza, cultoThese lexical boxes deepen the etymology, meanings, evolution, literary uses and relationships with other languages of the words "agonia, immonda, spasimi, assioma, lucrosi, moroso, sintomo, laureato, reduce, ilare, a canto, gelosia, birbante, successione, roba, fissazione, trame, fratte, esala, laboriosa, gitane, chimere, vertigine, anella, accora, cimenti, cubiti, aneliti, gioia, vorace, disdegnoso, favola, tumide, adamantino, ipocrita, ancipiti, fiamma, inetto, scabrosa, burocrazia, reticenza, culto

    Approfondimenti lessicali "La vita delle parole"

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    Le schede lessicali approfondiscono etimologia, significati, evoluzione, presenza letteraria e legami con altri idiomi delle voci ragguardevoli, fanatica, discrezione, vortice, tacito, gabinetto, ignavo, conflagra, labile, matrone, cetre, formula, intento, profilo, scaglie, catena, creanza, siti, mercato, fondaciThese lexical boxes deepen the etymology, meanings, evolution, literary uses and relationships with other languages of the words "agguardevoli, fanatica, discrezione, vortice, tacito, gabinetto, ignavo, conflagra, labile, matrone, cetre, formula, intento, profilo, scaglie, catena, creanza, siti, mercato, fondaci
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