969 research outputs found
Massimo Stefano Russo Del tempo libero in tempo di guerra
No full textIl tempo libero in condizione emergenziali con particolare riferimento agli eventi bellici e alle condizioni dei soggetti fragili
I paradossi del caso Cucchi: un sommerso che si doveva/poteva salvare
No full textAnalisi della vicenda di Stefano Cucchi con riferimento agli aspetti mediatici del caso, con riferimento in particolare all’informazione e alla comunicazione trasmessa attraverso i canali social e le reazioni dell’opinione pubblica
Hydrogeological and thermal characterization of shallow aquifers in the plain sector of Piemonte region (NW Italy): implications for groundwater heat pumps diffusion
No full textThe low annual and seasonal variability of the shallow groundwater temperature in the alluvial plain aquifers of the Piemonte region (NW Italy) confirmed the potentiality of the low-enthalpy open-loop groundwater heat pumps (GWHP) diffusion to contribute to the reduction of regional greenhouse gas emissions. The distribution of mean groundwater temperatures ranged from a minimum of 10.3C to a maximum of 17.9C with a mean of 14.0C. Differences among diverse areas were slight according with the modest variations in the general climatic condition. Like the air, temperature distribution of the shallow groundwater temperatures is generally similar to topographic elevations in reverse manner. Higher temperature values recorded were typical of summer months (June, July). On the opposite lower values were measured in January and February. No significant difference phase (time) difference between air and groundwater temperature appeared in the data analysis. Besides air-temperature influence (seasonal variability) seemed strictly connected to the depth to groundwater in the measure point and it was negligible when the value was over 9.5 m. For the application of the open-loop systems, extensive examinations of the hydrogeological local conditions should be conducted at site scale and groundwater heat transport modelling should be develope
Tasso
No full textVolume monografico dedicato a Torquato Tasso, modellato sulla struttura anglosassone del companion, in ossequio agli indirizzi della collana in cui è collocato ('Letteratura italiana: autori, forme, questioni'). Il libro si divide in due sezioni: la prima dedicata alle opere di Tasso (1. i poemi giovanili - Matteo Navone; 2. Le rime - Franco Tomasi; 3. Il teatro - Stefano Verdino; 4. Le lettere - Guido Baldassarri; 5. la teoria leteraria - Maria Teresa Girardi; 6. Gerusalemme liberata - Emilio Russo; 7. I dialoghi - Uberto Motta; 8. La 'Gerusalemme conquistata' e il 'Mondo creato'); la seconda a 'questioni' (9. Lingua e stile - Davide Colussi; 10 La biblioteca, Massimo Castellozzi; 11. il Sacro - Erminia Ardissino)
Bug Localization in Test-Driven Development
No full textSoftware development teams that use agile methodologies are increasingly adopting the test-driven development practice (TDD). TDD allows to produce software by iterative and incremental work cycle, and with a strict control over the process, favouring an early detection of bugs. However, when applied to large and complex systems, TDD benefits are not so obvious; manually locating and fixing bugs introduced during the iterative development steps is a nontrivial task. In such systems, the propagation chains following the bugs activation can be unacceptably long and intricate, and the size of the code to be analyzed is often too large. In this paper, a bug localization technique specifically tailored to TDD is presented. The technique is embedded in the TDD cycle, and it aims to improve developers' ability to locate bugs as soon as possible. It is implemented in a tool and experimentally evaluated on newly developed Java programs.</jats:p
Open-loop groundwater heat pumps development for large buildings: a case study
No full textA study of the feasibility of providing the heating and cooling needs of the new, large commercial building near Turin, Italy, by means of an open-loop indirect groundwater heat pump (GWHP) system is described. A finite element subsurface flow and transport simulator (FEFLOW) was used to investigate possible configurations of extraction and injection wells for five different scenarios. Modelling results confirmed the hydrogeological capacity of the site to provide the necessary amount of groundwater and associated energy with limited environmental impact. Injection of warmer (or cooler) water in the aquifer creates a thermal plume whose dimensions and geometry depend on the properties of the subsurface formations, particularly their thermal dispersivity values. The study suggests that there are several possible well configurations that could support the GWHP system without adversely affecting the aquife
Aging-related Performance Anomalies in the Apache Storm Stream Processing System
No full textEvent stream processing has recently emerged as a popular paradigm for implementing high-volume distributed (near-)real time data processing applications. Several open source systems are today available, supporting the development of such applications, many of which developed with the technologies of the Apache Software Foundation. These so called stream processors are long-running complex software systems which may be affected by software aging, a well-known phenomenon among operation engineers, consisting of a progressive increase in the failure rate or in performance degradation of a software system over time.
We address the problem of identifying symptoms and sources of software aging in the Apache Storm event stream processing system; this helps to identify proper strategies to prevent or mitigate anomalous behaviors in production environments. To this aim, we present an experimental study investigating aging manifestations in a popular system, namely Apache Storm. Results show that Storm presents anomalous behaviors in long runs, which prevent some topologies from working continuously. These can be attributed to software aging, due to Storm internal resource management mechanisms influenced by the garbage collector and the memory assigned to worker processes. We discuss the aging-related Apache Storm behaviors, and we experiment rejuvenation actions, showing that they are actually able to remove them
Hybrid Simulation and Test of Vessel Traffic Systems on the Cloud
No full textThis paper presents a cloud-based hybrid simulation platform to test large-scale distributed System-of-Systems (SoS) for the management and control of maritime traffic, the so-called Vessel Traffic Systems (VTS). A VTS consists of multiple, heterogeneous, distributed and interoperating systems, including radar, automatic identification systems, direction finders, electro-optical sensors, gateways to external VTSs, information systems; identifying, representing and analyzing interactions is a challenge to the evaluation of the real risks for safety and security of the marine environment. The need for reproducing in fabric the system behaviors that could occur in situ demands for the ability of integrating emulated and simulated environments to cope with the different testability requirements of involved systems and to keep testing cost sustainable. The platform exploits hybrid simulation and virtualization technologies, and it is deployable on a private cloud, reducing the cost of setting up realistic and effective testing scenarios
Dall’annotazione alla classificazione dei paesaggi sonori “giocosi” tra tradizione e contemporaneità. From the notation to the classification of “playful” soundscape between tradition and modernity
No full textIt is important for the social sciences to study soundscapes, both from a theoretical and empirical point of view, to a perspective increasingly linked to changes and transformations in social and environmental structures.
In particular, in a world where there is no absolute reference point, the environmental stimuli generated by sounds and processed by the brain constitute increasingly complex universes of study.
The world of playful activities, starting from the classical period, has always expressed natural sounds that we find however strongly altered, when not marked by completely artificial sounds, in a context, such as the present, strongly permeated by technological pervasiveness.
How to find and preserve the sound materials that risk disappearing? increasingly indecipherable. Opening up to the problem of defining taxonomic “types”, to build meta information and easy instrumentation, able to compare and preserve any sound scenario, in the construction of a discourse of confirmations and inclusions
- …
