• Title/Summary/Keyword: Venezia

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Trajectory Data Warehouses: Design and Implementation Issues

  • Orlando, Salvatore;Orsini, Renzo;Raffaeta, Alessandra;Roncato, Alessandro;Silvestri, Claudio
    • Journal of Computing Science and Engineering
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    • v.1 no.2
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    • pp.211-232
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    • 2007
  • In this paper we investigate some issues and solutions related to the design of a Data Warehouse (DW), storing several aggregate measures about trajectories of moving objects. First we discuss the loading phase of our DW which has to deal with overwhelming streams of trajectory observations, possibly produced at different rates, and arriving in an unpredictable and unbounded way. Then, we focus on the measure presence, the most complex measure stored in our DW. Such a measure returns the number of distinct trajectories that lie in a spatial region during a given temporal interval. We devise a novel way to compute an approximate, but very accurate, presence aggregate function, which algebraically combines a bounded amount of measures stored in the base cells of the data cube. We conducted many experiments to show the effectiveness of our method to compute such an aggregate function. In addition, the feasibility of our innovative trajectory DW was validated with an implementation based on Oracle. We investigated the most challenging issues in realizing our trajectory DW using standard DW technologies: namely, the preprocessing and loading phase, and the aggregation functions to support OLAP operations.

The Situation Lens: A Metaphor for Personal Task Management on Mobile Devices

  • Celentano, Augusto;Faralli, Stefano;Pittarello, Fabio
    • Journal of Computing Science and Engineering
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    • v.3 no.4
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    • pp.238-259
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    • 2009
  • In this paper we discuss personal data management with mobile devices, an activity requiring the composition of services offered by standard suites of applications. We propose a data model and an interface model that allows users to define activities, tasks and services, to navigate among them according to the evolution of the personal situation as perceived and interpreted by the users themselves. The interface model acts as a lens exploring the situation, zooming into the details, covering different areas of the personal data, supporting the user in the role of a composer of personal services.

Robotics in Construction: Framework and Future Directions

  • Aparicio, Claudia Cabrera;Balzan, Alberto;Trabucco, Dario
    • International Journal of High-Rise Buildings
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    • v.9 no.1
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    • pp.105-111
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    • 2020
  • In recent years the construction sector has grown significantly in terms of investment and research on robotics and automation, yet it is still a low-tech and disjointed industry. One of the main scopes of this paper is to determine how robotic automation can provide the answers to the needs this industry has. To that end, an overall framework and development agenda of current technological innovation in the field has been outlined. Possible drawbacks and driving forces in the development of robots in the construction site have been identified. In addition, the review provides for state-of-the-art policies and regulations, as well as the short and medium-term outlook in different markets and countries. Ultimately, the forecast impact on traditional processes, construction sites, emerging technologies and related professions has been summarized in order to delineate prospective repercussions and future directions towards self-sufficiency.

Robotics in Construction: State-of-Art of On-site Advanced Devices

  • Balzan, Alberto;Aparicio, Claudia Cabrera;Trabucco, Dario
    • International Journal of High-Rise Buildings
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    • v.9 no.1
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    • pp.95-104
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    • 2020
  • Recently, robotic technologies have significantly improved, bringing considerable enhancements in many sectors; the main objective of this paper is to figure out if these innovations have also involved the building industry. To achieve this purpose, it has been considered crucial to first reshape and clarify some concepts, incorporating a much more flexible understanding of the term "robot", as well as the formulation of its future potential. Subsequently, it has been carried out an analysis of the various advanced devices that are currently available to be employed in the construction processes; the review includes a thorough classification of construction robots, divided into 18 families reflecting their purpose of use, and a dissection based on the term used to define them. The attention has been focused on the most updated and recent robots and, in their absence, on the most advanced machines prevailing. This operation has been achieved taking into account the development history of construction robots, as well as the analyses and classifications previously conducted, reconsidering them according to the just mentioned reflections. Furthermore, an in-depth exploration of the exoskeletons, as well as on a sophisticated robot recently developed by Schindler Group has been executed.

Structural response of corroded RC beams: a comprehensive damage approach

  • Finozzi, Irene Barbara Nina;Berto, Luisa;Saetta, Anna
    • Computers and Concrete
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    • v.15 no.3
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    • pp.411-436
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    • 2015
  • In this work, a comprehensive approach to model the structural behaviour of Reinforced Concrete (RC) beams subjected to reinforcement corrosion is proposed. The coupled environmental - mechanical damage model developed by some of the authors is enhanced for considering the main effects of corrosion on concrete, on composite interaction between reinforcement bars and concrete and on steel reinforcement. This approach is adopted for reproducing a set of experimental tests on RC beams with different corrosion degrees. After the simulation of the sound beams, the main parameters involved in the relationships characterizing the effects of corrosion are calibrated and tested, referring to one degraded beam. Then, in order to validate the proposed approach and to assess its ability to predict the structural response of deteriorated elements, several corroded beams are analyzed. The numerical results show a good agreement with the experimental ones: in particular, the proposed model properly predicts the structural response in terms of both failure mode and load-deflection curves, with increasing corrosion level.

The Meaning of Joint in Carlo Scarpa's Fragmentary Architecture (카를로 스카르파의 단편적 건축에 있어서 접합의 의미)

  • Lee, Kyung-Jin
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.8
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    • pp.15-22
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    • 2019
  • According to Kenneth Frampton, the modern architecture starts to be recognized as the poetics of construction and lays a great weight in its value on the technology of making forms and the inherent meaning in the tectonics. The tectonic connotes not only the technological construction of the architecture but also ontological details as the joint of material and texture. The works of Carlo Scarpa are examples to prove the way how the ontological meanings are exposed in the tectonic form of architecture. The purpose of this study was to analyze the connections between Carlo Scarpa's architectural thoughts and visual logic(schemata) from the characteristic of details in his work during the 1950s to 1970s. Through the analysis, the Italian tradition in the architecture is reinterpreted through isolation and break of recollected montages. Carlo Scarpa makes spatial fragments and aspects of reinterpreting in surroundings and situation with the architectural place in Venezia. As a result, the unique details of his craftsmanship provide lessons on how to reinterpret the traditional architecture. In conclusion, Carlo Scarpa's architecture emphasizes the passage of its perceptive experience aspects as a dis-joint of tectonic forms. It may imply the significance of his philosophical approach, especially to the ontological architecture and tectonics.

Identification of Proteins in Human Follicular Fluid by Proteomic Profiling

  • Sim, Young-Jin;Lee, Mi-Young
    • Molecular & Cellular Toxicology
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    • v.4 no.3
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    • pp.253-259
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    • 2008
  • Human follicular fluid (HFF) is the in vivo microenvironment for oocyte maturation and includes a variety of proteins that could be involved in oocyte development and fertilization. We therefore used a proteomic approach to identify new HFF proteins. HFF from mature human follicles was obtained from five women following oocyte collection for in vitro fertilization (IVF). Ethanol-precipitated HFF run on two-dimensional gel electrophoresis (2DE) produced approximately 250 Coomassie brilliant blue-stained spots, 64 of which were identified using matrix-assisted laser desorption/ionization-mass spectrometry (MALDIMS). In this study, several proteins including complement factor H, inter-${\alpha}$ (globulin) inhibitor H4, inter-${\alpha}$-trypsin inhibitor heavy chain H4 precursor, human zinc-${\alpha}$-2-glycoprotein chain B, PRO2619, PRO02044, and complex-forming glycoprotein HC were new proteins that have not been previously reported in HFF using proteomic methods. Additionally, we identified alloalbumin venezia for the first time from trichloroacetic acid (TCA)-precipitated HFF. These HFF proteins could serve as new biomarkers for important human reproductive processes.

The Teaching and Practice of Architectural Design A Case-study of Two Professor-Architects in Italy (건축설계의 교육과 실천 -이탈리아 두 교수건축가의 사례연구-)

  • Kim, Kyong-Soo
    • Journal of architectural history
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    • v.1 no.2 s.2
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    • pp.183-199
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    • 1992
  • The problem of separation between the teaching and the practice of architectural design in Korean universities has activated this study. Comparison between two professor-architects in Italy through their various activities has been made during the period of 1991-1992 in the Istituto Universitario di Architettura di Venezia. The names of the two professor-architects are Aldo Rossi and Franco Mancuso. Their teaching activities in their architectural design class with their assistants, their background and formation of architectural theory, and two realized (and prized) works of them have been compared. The results show that there is a great difference (or oppositions) in their world-view and their attitudes towards architecture, the one as an empiricist, the other as a rationalist. But the most impressive observation must be the fact that all of them were coherent in their teaching, theory and practice, although this raises another qustion about the 'rationality' in architecture.

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Maintenance of Wakefulness and Occupational Injuries among Workers of an Italian Teaching Hospital

  • Valent, Francesca;Sincig, Elisa;Gigli, Gian Luigi;Dolso, Pierluigi
    • Safety and Health at Work
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    • v.7 no.2
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    • pp.120-123
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    • 2016
  • Background: To assess in a laboratory setting the ability to stay awake in a sample of workers of an Italian hospital and to investigate the association between that ability and the risk of occupational injury. Methods: Nine workers at the University Hospital of Udine who reported an occupational injury in the study period (cases), and seven noninjured workers (controls) underwent a polysomnography and four 40-minute maintenance of wakefulness tests (MWT). Differences in sleep characteristics and in wakefulness maintenance were assessed using Wilcoxon's rank sums tests and Fisher's exact tests. Results: Controls had greater sleep latency, lower total sleep time, fewer leg movements, and a higher percentage ratio of cycling alternating pattern, were more likely not to fall asleep during the MWT and were less likely to have two or more sleep onsets. Although not all the differences reached statistical significance, cases had lower sleep onset times in Trials 1-3. Conclusion: In the literature, the evidence of an association between MWT results and real life risk of accidents is weak. Our results suggest a relationship between the MWT results and the risk of injury among hospital workers.