103,361 research outputs found
EU-WIDE FARM TYPES SUPPLY IN CAPRI - HOW TO CONSISTENTLY DISAGGREGATE SECTOR MODELS INTO FARM TYPE MODEL
No full textEU-wide farm supply analysis, highest posterior density estimator, CAPRI, Research Methods/ Statistical Methods,
Automated model linkages: the example of CAPRI
No full textIncreasing demand for policy impact assessment regarding social, economic and environmental aspects asks for combined application of different models and tools. The paper discusses concepts and challenges in linking models, taking CAPRI (Common Agricultural Policy Regionalised Impact) model as an example. CAPRI combines different economic models, spatial downscaling and interfaces to bio-physical components. 250 non-linear regional programming models with econometrically estimated costs functions cover the EU-27, Norway and Western Balkans. They are consistently linked to a spatial globally closed trade model, covering 60 countries / country blocks and 50 primary and secondary agricultural products. The link is based on sequential calibration: the market models prices drive the programming models whereas its supply and feed demand curves are calibrated to the programming models’ results, iteratively repeated to convergence. CAPRI integrates projection results from other model systems in the baseline generation and calibrates the supply models to econometric estimations or the supply response from other models as in SEAMLESS. The spatial down-scaling component breaks down the regional EU-27 results regarding cropping shares, crop yields, animal stocking densities and fertilizer application rates to about 140 000 1x1 km pixel cluster and links these results to a statistical meta model of the bio-physical model DNDC.model linkage, linking economic and environmental models, policy impact assessment, Agricultural and Food Policy, Research Methods/ Statistical Methods,
Biomass for energy production in the context of selected European and international policy objectives
No full textBiomass based energy production has attained a significant market share within the developing renewable energy market. In comparison to alternative renewable energy sources, biomass has several special features: it is not inexhaustible in the short term (limitation of arable land) and it is not only an energy source. Other usages like food or feed compete with energy production for this resource. A number of problems arise which have a direct impact on the fulfillment of policy objectives which are connected with its promotion. Primarily, the production of bioenergy has significant impacts on coupled biomass markets. Further, a change in production intensity or arable land use increases the use of nutrient loads and agro - chemicals. When evaluating renewable energy production, the wide range of political objectives has to be considered. Therefore, the focus of the overall study will be on three objective areas: promotion of the agricultural sector, environmental protection (reduction of GHG emissions) and maintenance of food supply security. The objective of this study is to combine an analysis of selected economic and ecological impacts of an increased biomass based energy production (primarily biofuels) under the assumption of European and international quantity targets by adjusting and applying the agricultural sector model CAPRI (Common Agricultural Policy Regional Impact Analysis). This poster intends to display the methodical approach of the intended analysis.Bioenergy, Biofuels, Biomass production, Impact analysis., Resource /Energy Economics and Policy,
Impact assessment of trade liberalisation between EU and Mercosur countries
No full textOngoing bilateral trade negotiations between the Mercosur group and the EU since 2000 on agricultural products served as incitement to analyse the impacts of possible outcomes. The objective of this paper is to quantitatively assess impacts of bilateral liberalisation scenarios on EU25 and Mercosur markets as well as their bilateral trade flows. For this purpose, the CAPRI model, which has already been applied to several multi- and bilateral trade liberalisation scenarios in the past, has been adopted in several ways. (1) Trading blocks in CAPRI have been expanded so that the Mercosur countries are now represented with country specific behavioural functions and explicit trade flows. (2) The parameters of these behavioural functions have been calibrated using recently estimated supply and demand elasticities (CAP, E. ET AL., 2006) as prior information in a constrained Bayesian framework (HECKELEI, T. ET AL., 2005). (3) Two different baselines scenarios varying in the assumed production potential of the Mercosur countries were defined with experts from these countries. This approach reflects that developments in Mercosur countries are very dynamic with lots of uncertainties. It also provides analysis of results dependent on baselines which is an innovation in CAPRI (technically and qualitatively). In this paper three selected scenarios are analysed. The first scenario reflects an unilateral partial liberalisation between the EU25 and the Mercosur countries by allocating additional Tariff Rate Quotas (TRQs) to the Mercosur countries for certain products based on an official EU proposal (USDA, 2005). The second scenario combines the partial unilateral liberalisation with the multilateral WTO G20 proposal. Sensitive products are defined according to JEAN, S. et al. (2006). The third comprises a bilateral full liberalisation between the EU25 and the Mercosur countries by allowing quota and duty free access in both directions for all agricultural products. The results focus on welfare effects and the market balances of seven key commodities (wheat, maize, rice, soybeans, bovine meat, chicken and pork). Furthermore, a sensitivity analysis on the elasticities of substitution between foreign and domestic produced goods that drive demand of trade flows is provided and shows that the choice of those elasticities is very crucial with respect to model results.Trade liberalisation, Mercosur, CAPRI, Armington., Demand and Price Analysis, International Relations/Trade,
Le Antiche ruine di Capri (1835). Un'incompiuta di Francesco Alvino e Bernardo Quaranta
No full textL'articolo presenta un'opera incompiuta - Le antiche ruine di Capri, 1835 - con illustrazioni di Francesco Alvino e commento di Bernardo Quaranta. Particolarmente l'articolo si sofferma sul contributo di Quaranta, che può considerarsi la prima opera scientifica e sistematica su Capri antica
La 'Grande Madre' di Matermania. La leggenda moderna di Cibele a Capri
No full textPartendo dall'esame del microtoponimo caprese Matermania, si è messo in evidenza il carattere falso e strumentale delle operazioni dotte sette-ottocentesche che hanno radicato nella storiografia caprese l'immagine dell'isola come luogo privilegiato del culto della 'Grande Madre' Cibele
Experimental optimization of the CAPRI process
No full textAn experimental study was carried out concerning the optimization of catalyst type, operating conditions, addition of water and hydrogen for use in the THAI-CAPRI process and is reported. Three feeds namely, THAI field oil, Combustion Cell Oil (CCO) and n-decane were used in the presence of catalyst or an inert medium for comparison.
Experiments were carried out using micro-reactors containing 5 g catalyst under different temperatures, pressures and gas environments. It was found that there was a trade-off in operation temperature between upgrading performance and catalyst lifetime. At higher temperatures of 500 °C led to an average of 6.1 °API upgrading , however, the catalyst lifetime was limited to 1.5 hours. Operation at 420 °C was found to be a suitable compromise, with upgrading limited up to 3 °API, with catalyst lifetime extended to 77.5 hours.
From the results of the current study it can be said that by careful control of the temperature and oil flow rate in the in-situ CAPRI process, additional upgrading compared with the THAI process alone may be effected, resulting in a more valuable produced oil, which is easier to transport and could be further processed into distillates
Componenti cognitive dell'attaccamento al luogo.
No full textAbstract, Congresso Nazionale della Sezione di Psicologia Sperimentale della A.I.P., Capri. Pubbl. in: G. Nigro (a cura di), A.I.P. Associazione Italiana di Psicologia Congresso Nazionale della Sezione di Psicologia Sperimentale Capri '97 Riassunti delle Comunicazioni Capri, 22 settembre - 24 settembre 1997, D.L. Comunicazioni, Napoli (p. 17-19
T. G. Masaryk and his journeys to Capri 1921–1922
No full textThe contribution focuses on the journeys of president Thomas G. Masaryk to Capri at the beginning of the 1920s. Masaryk suffered from serious health problems in 1921 and therefore it was necessary for him to go abroad to recover. These were also the first trips of Czechoslovak president and they became models (i.e. in organisation) for Masaryk´s other journeys. The contribution deals with the organisation of the journeys and tries to capture day-to-day life at Capri. The influence on Masaryk´s state of health or financial background of the journeys is also mentioned in the text
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