Search results for "conservation."
showing 10 items of 1994 documents
THE ROLE OF THERMOGRAPHY IN THE NON-DESTRUCTIVE EVALUATION OF HISTORICAL ARCHITECTURAL SURFACES. Some observation about the method and its purpose
2014
Infrared-Thermography (IRT) has become a supporting tool for the investigation of historical structures and facades. Using the non-destructive testing method for the detection can give a profound knowledge about the current status of the object and the state of decay, about different kinds of discontinuities at historical facades, of construction details and of thermal bridges in the facades. Different case studies of thermographic surveys on some Sicilian monuments are presented and discussed to illustrate how the method can offer applicable information about the investigated objects and demonstrate its reasonable integration into conservation projects.
Termographic survey and architectural envelopes: infrared tecnology to conserve the skin of monuments. Experimental application in Sicily (2002-2009)
2010
The paper treats the elaboration system to obtain a thermogrammetry. The experimental method is useful to get a metric thermal image to be edited with the photogrammetric image of the architectural surfaces simultaneously. This way, the gotten graph can be imported in c.a.d. software as raster image and becomes the base to improve the design of the thematic maps that constitute the restoration project. The essay shows the editing practice to be developed in order to get the diagnosis supported by thermography on the architectural surfaces. Some application examples of the diagnostic methodology are introduced and critically commented to understand all the potentialities of the investigation…
Using plot soil loss distribution for soil conservation design
2011
Abstract Soil conservation design is generally based on the estimation of average annual soil loss but it should be developed taking into account storms of a given return period. However, use of frequency analysis in soil erosion studies is relatively limited. In this paper, an investigation on statistical distribution of soil loss measurements was firstly carried out using a relatively high number of simultaneously operating plots of different lengths, λ (11, 22, 33 and 44 m) at the experimental station of Sparacia (southern Italy). Using a simple normalization technique, the analysis showed that the probability distribution of the normalized soil loss is independent of both the scale leng…
Estimating soil loss of given return period by USLE-M-type models
2020
Many field investigations have clearly shown that rare and severe events control total soil erosion occurring over a long time period with up to 92% of total soil erosion over a 7‐year period resulting from just three daily events. Therefore, soil conservation strategies should be developed taking into account large events rather than long‐term average erosion. From an engineering point of view, establishing the soil loss of a given return period is needed. This can be obtained by the frequency analysis of soil loss measurements or by suitable soil erosion models. The USLE‐M modified and USLE‐M based are two empirical Universal Soil Loss Equation‐Modified (USLE‐M) type models which were dev…
Early screening of new accumulating versus non-accumulating tree species for the phytomanagement of marginal lands
2019
International audience; The use of fast-growing trees producing a high quantity of biomass can bring significant practical and economic benefits to the reclamation of marginal lands. The present study aims to identify new shrub/tree species to offer a wider range of shrubs/trees useful for phytomanagement practices. We implemented three experimental sites in France of 1 ha each (Thann, Carrières-sous-Poissy and Leforest) contaminated by different potentially toxic elements (PTE) with a total of 38 different tree species. After two years of growth, the element concentrations in stem and leaf biomasses, tree survival rate and growth of plants were assessed. Although the three sites had elevat…
Afternotes on PHM: Harmonic ENO Methods
2003
PHM methods have been used successfully as reconstruction procedures to design high-order Riemann solvers for nonlinear scalar and systems of conservation laws, (see [8], [1], [4]). We introduce a new class of polynomial reconstruction procedures based on the harmonic mean of the absolute values of finite diferences used as difference-limiter, following the original idea used before to design the piecewise hyperbolic method, introduced in [8]. We call those methods ’harmonic ENO methods’, (HENO). Furthermore, we give analytical and numerical evidence of the good behavior of these methods used as reconstruction procedures for the numerical approximation by means of shock-capturing methods fo…
Gobio Genus Species Integrated Management System – Târnava Rivers Study Case (Transylvania, Romania)
2019
Abstract The lotic habitats quality indicative congeners species Gobio gobio, Gobio kessleri and Gobio albipinnatus populations’ dynamic in time (2004-2019) and space revealed a decreasing trend in these rivers ecological status. The ADONIS:CE tool has been used to build a backing management system model, based on these indicative fish species habitat needs, indicators for favourable conservation status, pressures and threats. This management system implementation in the field will favour the amelioration of lotic habitats and the ecological status recovering of two of the local fish species of conservative interest (G. kessleri and G. albipinnatus).
Tutela e Restauri Italiani nell'Isola di Rodi (1912-1945)
2016
Nel 1912, con l’occupazione italiana dell’Isola di Rodi e delle vicine isole del Mar Egeo, iniziò un periodo di studi e d’interventi di restauro che ha contribuito, in maniera rilevante, alla conservazione del vasto patrimonio archeologico, innanzi tutto greco e romano e dell’architettura medievale e proto rinascimentale realizzata dai Cavalieri di Rodi o di San Giovanni, oggi Cavalieri di Malta. Fra i tanti protagonisti che si sono distinti nell’azione di tutela e restauro, emerge l’ingegnere Pietro Loiacono, che studiò, fra l’altro, anche i resti dell’architettura medievale nel corso del suo soggiorno a Rodi, tra il 1932 e il 1935. Dobbiamo a studiosi come Pietro Loiacono se oggi il patri…
Protected areas host important remnants of marine turtle nesting stocks in the Dominican Republic
2012
AbstractNesting by marine turtles in the Caribbean has declined considerably, mainly because of human exploitation, but there has previously been no monitoring in the Dominican Republic. We present the first detailed assessment of the status of marine turtle nesting in the country, based on surveys during 2006–2010. Nesting populations of hawksbill Eretmochelys imbricata and leatherback turtle Dermochelys coriacea are of regional importance and the green turtle Chelonia mydas is still present, although nesting in low numbers. The two main nesting sites are within protected areas: the Jaragua National Park in the south-west, important for leatherback turtles (mean of 126 nests per season), a…
The Sicilian Landscape. Reuse, Renovation and Financial Feasibility Analysis for a Rural Village
2016
The rural landscape heritage is a great richness for the Italian territory. Unfortunately, in recent years, he has undergone gradual degradation that have undermined and damaged the original quality characteristics. Interventions of recovery, reuse, repair and renovation of rural areas are needed in order to improve the quality of life and be a point of attraction for the community, whether they are residents, visitors, tourists or businessmen who intend to invest capital and resources. Suitable instrument for a first testing of the convenience viability of private investors interested in setting up operations is the pre-financial feasibility analysis, here used relating to a part of the pr…