Search results for "Teoria"
showing 10 items of 2647 documents
Stochastic multicriteria evaluation of district heating systems considering the uncertainties
2018
It is of great importance to choose a suitable district heating (DH) system for a specific DH area from the economics, environment and energy (3E) points of view. This is a multicriteria decision making problem, in which the criteria performance values (PVs) and weighting are characterized by uncertain or imprecise information. In this study, seven candidate DH systems are evaluated from the viewpoints of 3E by the stochastic multicriteria acceptability analysis (SMAA) method. SMAA is able to handle the uncertainties of the criteria PVs and the weighting at the same time. These uncertainties are very common and typical in real-life, but in most cases are not treated judiciously or just negl…
CFD prediction of shell-side flow and mass transfer in regular fiber arrays
2021
Numerical simulations were conducted for fully developed, steady-state flow with mass transfer in fiber bundles arranged in regular lattices. The porosity was 0.5 and the Schmidt number 500. Several combinations of axial flow, transverse flow and flow attack angles in the cross-section plane were considered. The axial and transverse Reynolds numbers Rez , ReT were made to vary from 10(^−4) to 10(^2). Concentration boundary conditions, and the definition of an average Sherwood number, were addressed. Results for the hydraulic permeability were compared with the literature. Both hexagonal and square lattices were found to be hydraulically almost isotropic up to transverse flow Reynolds number…
Mass transfer in ducts with transpiring walls
2019
Abstract The problem of mass transfer in ducts with transpiring walls is analysed: the concepts of “solvent” and “solute” fluxes are introduced, all possible sign combinations for these fluxes are considered, and relevant examples from membrane processes such as electrodialysis, reverse osmosis and filtration are identified. Besides the dimensionless numbers commonly defined in studying flow and mass transfer problems, new dimensionless quantities appropriate to transpiration problems are introduced, and their limiting values, associated with “drying”, “desalting” and “saturation” conditions, are identified. A simple model predicting the Sherwood number Sh under all possible flux sign combi…
Forms of Animality: The Dog
2018
Animals are not the object of zoosemiotics as discussed here, neither is their language nor any other system of signs that affects them directly as living creatures that communicate, but the forms of animality, forms through which the concept of animal itself is socially constructed and transformed over time. Now, if there is one place in which such forms are plain to see, it is in those areas that focus on their nutrition. Looking at feeding animals as a semiotic activity, this paper wants to focus on what I call a nutritional pact, an implicit agreement that binds humans and animals, and that is being continuously negotiated by cultures. A relationship that advertising deeply contributes …
New York City, la più grande città del cibo italiano
2021
This work offers an analysis of Italian restaurants in New York City. Historical literature and anthropological has repeatedly highlighted the role that Italian emigration to the east coast plays of the United States and the spread of gastronomic clothes marked as Italian in foreign territory they had in the construction of a tricolor gastronomic effigy (in part. Montanari 2010; Cinotto 2001; Cecla 1998). This interdependence strengthens the relationship from a semiotic perspective with otherness as an indispensable condition for building an indigenous food identity and food stereotypies recognized as "typical". Tricolor food symbols such as pasta and pizza owe their nationalization, for th…
Cibo in città. Dalla foodification al delivery
2021
Many historical centres of our cities have been turned into gastronomic villages en plein air. The food outlets have multiplied and the traditional restaurant has exploded, giving life to a myriad of formats. These formats are increasingly linked to the relaunch offered by Instagram pages, to the apps that manage reservations, to the reviews sites. Linking themselves to the possibilities offered by the web, restaurants have transformed their relationship with the city, the practices of food consumption and the rituals of everyday life. We propose to explore this set of processes, starting from the traditional restaurant, and then moving on to the different forms of food consumption that we …
Premessa
2021
Reading the city sub specie gastronomica means observing the multiple relationships that the language of food and that of space entertain each other. What is highlighted in thie volume is the social value that founds, by merging them, the links between food and cities in the different branches that the authors propose to us. We therefore speak of restaurants and markets, kitchens and dining rooms, supermarkets and taverns, street food and fast food, food and wine tourism and domestic imprisonments.
Foodscapes: cibo in città
2021
Reading the city from a gastronomical point of view means observing the multiple relationships that the language of food and the language of space have with each other. It means selecting and making relevant some areas of the urban text and some parts of food discourse, electing them as representative segments of wider social dynamics. From this perspective, the city becomes a litmus test of the food and wine scene, a reflection of dishes and tastes, food orientations and consumption trends. On the other hand, food outlets become a mirror of urban flows, of ways of living in neighbourhoods, of social and convivial practices. And of their transformations, because it is clear that the city ev…
Forme e retoriche del fototesto letterario
2016
In ciò che tradizionalmente chiamiamo letteratura esistono forme che definiamo fototesti. Nella loro ormai secolare storia – che di fatto inizia a pochi decenni dall’invenzione della fotografia con il testo di Georges Rodenbach, Bruges la morta (Bruges-la-Morte, 1892) – la teoria letteraria ha avuto costante difficoltà anche semplicemente ad accettarne l’esistenza tra le forme alte di letteratura (per non dire nel canone), preferendo per lo più relegare questi ibridi tra le forme giornalistiche, quando addirittura non ne ha negato l’esistenza amputando l’immagine dal testo e viceversa.
Fractal
2020
The term fractal was first coined by the Polish-born, French-American mathe- matician Benoît Mandelbrot in the mid 1970s (cf. at least Mandelbrot 1975; Stewart 2010). It comes from the Latin word fractus “which has the same root of fraction and fragment and means “irregular or fragmented” (cf. Mandelbrot 1982: 3, in Emmer 2012: 7). Furthermore “it is related to frangere which means to break" (cf. Mandel- brot 1982: 4, in Emmer 2012: 7). Loosely speaking, a fractal is a mathematical object, such as a curve, or, more generally, as a set, “that displays exact or approx- imate self-similarity on different scales” (cf. at least Birken and Coon 2008: 134). Put in more technical terms, a fractal i…