Statistical separability and classification of land use classes using image-100

The author has identified the following significant results. The statistical separability of land use classes in the subsets of one to four spectral channels was investigated. Using ground observations and aerial photography, the MSS data of LANDSAT were analyzed with the Image-100. In the subsets of one to three spectral channels, channel 4, channel 4 & 7, and channels 4, 5, & 7 were found to be the best choices (ch.4 - 0.5 to 0.6 microns, ch. 5 - 0.6 to 0.7 microns, ch. 6 - 0.7 to 0.8 microns, and ch. 7 - 0.8 to 1.1 microns). For the single cell option of the Image-100, the errors of omission varied from 5% for the industrial class to 46% for the institutional class. The errors of commission varied from 11% for the commercial class to 39% for the industrial class. On the whole, the sample classifier gave considerably more accurate results compared to the single cell or multicell option

LA CLASSE DELL’ARTE ALL’ATENEO VENETO NELL’OTTOCENTO

genesi della figura di storico dell'art

Assessment of As contaminated soil stabilized with Iron amendments by laboratory and field experiments

The aim of this work was to assess the effectiveness of chemical stabilization technique on As contaminated soil, amended with Fe0 and combination of Fe0 and peat by laboratory and pilot scale field experiments. The used amendments were spent blasting sand (BS), a by-product from a steel industry containing 98.3% of Fe0, and its combination with peat. It was evaluated if the stabilized material could be used as a final landfill coverope

Implementation of the European Union ́s packaging and packaging waste regulation: A decision support framework combining quantitative environmental sustainability assessment methods and socio-technical approaches

The recent proposal for a European Union Regulation on packaging and packaging waste has a two-fold aims: i) to reduce the negative environmental impacts of packaging and packaging waste and ii) to improve the functioning of the internal market. Life Cycle Assessment (LCA) has historically been able to address the specific objectives of the proposal and is recognized as a key decision support tool in the circular economy context. In this short communication, it is argued that the new EU regulation calls for systemic changes, i.e. changes that are not simply just technological changes, but changes that might give rise to conflicts among actors and that are reliant on the active involvement of end-users. Therefore, to tackle the challenges in the implementation of the requirements of the new regulation a multi-disciplinary research approach able to address both technical aspects and social relations is needed. Accordingly, a conceptual framework combining quantitative environmental sustainability assessment tools (i.e. LCA and Material Flow Analysis) and qualitative socio-technical approaches (i.e. Actor-Network mapping and Practice Theory) is presented. The added value of such combination is illustrated in relation to two cases relevant for packaging, i.e. take-away food and food waste sorting. To exploit the full potential of LCA as a support to the decision-making process, the need to move beyond a product-centric analysis and instead adopt a socio-material perspective is outlined and the packaging sector has the potential to be a frontrunner in this context

The use of LANDSAT data to monitor the urban growth of Sao Paulo Metropolitan area

Urban growth from 1977 to 1979 of the region between Billings and the Guarapiranga reservoir was mapped and the problematic urban areas identified using several LANDSAT products. Visual and automatic interpretation techniques were applied to the data. Computer compatible tapes of LANDSAT multispectral scanner data were analyzed through the maximum likelihood Gaussian algorithm. The feasibility of monitoring fast urban growth by remote sensing techniques for efficient urban planning and control is demonstrated