1,355,231 research outputs found
Adversarial scheduling analysis of Game-Theoretic Models of Norm Diffusion.
No full textIn (Istrate et al. SODA 2001) we advocated the investigation of robustness of results in the theory of learning in games under adversarial scheduling models. We provide evidence that such an analysis is feasible and can lead to nontrivial results by investigating, in an adversarial scheduling setting, Peyton Young's model of diffusion of norms . In particular, our main result incorporates contagion into Peyton Young's model.evolutionary games, stochastic stability, adversarial scheduling
Tales of the uncommon: Massive binary stars and gravitational-wave sources
No full textContains fulltext :
236411.pdf (Publisher’s version ) (Open Access)Radboud University, 28 september 2021Promotor : Nelemans, G.A. Co-promotores : Istrate, A., Pols, O.R.345 p
Probleme noi în aşezarea paleolitică Măluşteni IV (judeţul Vaslui)
No full textBrudiu Mihai, Istrate M. Probleme noi în aşezarea paleolitică Măluşteni IV (judeţul Vaslui). In: Materiale şi cercetări arheologice, N°13 1979. A XIII - A sesiune anuală de rapoarte. pp. 21-23
Aşezarea neolitică Starčevo-Criş de la „Via Schineni” (com. Măluşteni, jud. Vaslui) / L’établissement néolithique Starčevo-Criş de „la Via Schineni”, comm. Măluşteni, dép. Vaslui
No full textIstrate Cornelia-Magda. Aşezarea neolitică Starčevo-Criş de la „Via Schineni” (com. Măluşteni, jud. Vaslui) / L’établissement néolithique Starčevo-Criş de „la Via Schineni”, comm. Măluşteni, dép. Vaslui. In: Materiale şi cercetări arheologice, N°14 1980. A XIV-A sesiune anuală de rapoarte. pp. 55-57
Management of waste electric and electronic equipments in two EU countires: a comparison
No full textThe paper presents some data regarding waste electrical and electronic (WEEE) management in one of the founding countries of the EU, Italy, and in a recent entry into the EU, Romania. The aim of this research was to analyze some problems that countries entering the EU will have to solve with respect to WEEE management. The experiences of Italy and Romania could provide an interesting reference point. The strengths and weaknesses that the two EU countries have encountered can be
used in order to give a more rational plan for other countries. In Italy the increase of WEEE collection was achieved in parallel with the increase of the efficiency of selective Municipal Solid Waste
collection. In Romania, pilot experiences were useful to increase the awareness of the population. The different interests of the two populations towards recyclable waste led to a different scenario: in
Romania all types of WEEE have been collected since the entrance into the EU; in Italy the "interest" in recycling is typically related to large household appliances, with a secondary role of lighting equipment
Noise and air pollution from urban traffic
No full textTogether with the atmospheric emission of pollutants, noise can affect the health of the population. In particular, urban traffic is important when considering population health, because of its proximity to the receptors. In comparison with other pollutants, the control of environmental noise has been hampered by insufficient knowledge of its effects on people and of dose-response relationships, as well as by a lack of defined criteria. Due to the high levels of external noise and interior noise, the difficulties are in communication and a series of nonspecific symptoms: irritability, headache, palpitations, sleep disorders, stress. Concerning air pollution, the health of the population is directly influenced by primary emissions or atmospheric transformation from motor vehicles. Few studies have characterized the spatial correlation between both factors, air pollutants and noise, thus this paper, based on urban noise measurements, presents preliminary data on noise levels in a European capital and a discussion where interactions with air quality are dealt with. Data demonstrates that the urban structure of the analysed city cannot guarantee an adequate protection of the population against noise, because of the interactions between neighbouring areas
DCT techniques vs incineration for remediation of soils contaminated by diesel and salts
No full textThe objective of the present research is to determine the optimum parameters for obtaining a high efficiency of the treatment of electrochemical remediation, in order to remediate a soil contamination by organic compounds and salts. The obtained results are planned to be adopted for a comparative analysis with the option of incineration. An electrochemical remediation method using a constant current, instead of constant voltage, was evaluated for its ability of remediating such contamination. The impacts of five factors including initial total petroleum hydrocarbon (TPH) concentration, conductivity, salinity, soil type, moisture was assessed. The major impact comes from conductivity that establish the possibility to apply the electrochemical treatment under constant current. The obtained data are suitable for the development of an energy balance of this approach and are planned to be used for a comparison with an alternative option of remediation: incineration. The main goal of incineration is to heat the contaminated media to temperatures between 870 and 1,200°C, volatilizing and burning the organic compounds. The full comparison will be made in a future paper; in this paper preliminary considerations are presented
Municipal solid waste management in Italian and Romanian tourist areas
No full textTourism is a great source of employment and income in the economies of
many regions, but also a source of environmental impacts. The main consequences
are the increase of generation of Municipal Solid Waste (MSW) and the effects in
their management. The tourist presence affects the territory in terms of amount
produced of MSW, but also of quality of Selective Collection (SC). In this paper
three case studies are analysed in order to see the possible criticality in waste
management about these areas and also taking into account strategies of energy
recovery from Residual Municipal Solid Waste (RMSW). The case studies concern a
tourist area in the North of Italy and one in the South of Italy, while another one in a
Romanian region. In the summer season (June-August) the increase in waste
production is clearly visible according to the Italian data. The opposite behaviour is
observed for percentage of SC. The tourists’ behaviour influences negatively the
SC's efficiency, above all in the South Italy case
Constant current vs constant voltage – two types of tests for the experimental application of electrochemical technology for organic polluted soils
No full textCleaning up all historically-contaminated sites, commonly of industrial origin, to background concentrations or levels suitable to all uses often is not viewed as technically or economically feasible. As a result, clean-up strategies increasing are designed to employ sustainable, long-term solutions, often using a risk-based approach to land management aimed at achieving “fitness for use” appropriate to the location. In the absence of specific EU legislation to address the cleanup of contaminated soil, Member States apply the “polluter pays” principle to varying degrees in clean-up programs. The aim of the experimental research was to assess the feasibility of two types of electrochemical treatment, one treatment that is based on the application of a constant voltage and other treatment that is based on the application of a constant current. For this purpose several bench scale laboratory tests were performed.
The results obtained during the research showed that the electrochemical treatment can reach a high efficiency up to 80% by applying the electrochemical treatment at a constant voltage, depending on the treatment period. Also it was demonstrated that by using the method of changing potential it can be obtained also uniformity along the soil sample
Poultry manure gasification and its energy yield
No full textThe disposal of poultry manure is one of the main problems of the poultry sector. The results of some tests developed in a gasification pilot plant are presented in this paper. The aim was to preliminarily analyze the energy generation from poultry manure treated by gasification. The level of energy yields and the quantification of the produced syngas are also reported. The good results suggests an possible application at full scale
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