1,721,005 research outputs found
22) S. Toccaceli , G. Pappalardo, P. Dionisio, G. Mosiello, G. Castrini “Il ruolo attuale dell’elettromanometria nelle patologie anorettali”. Chirurgia Gastroenterologica, Vol. 19, n.4, Ott. 1985.
No full textDesign of a Domain-Independent Training System Based on a Smart Pedagogical Agent
No full text"The success of training through virtual environments is due both to an interesting cost savings for industry and positive results for learners. However, the system behind this approach is usually hard to produce, being strongly domain-dependent and for this reason difficult to port on other domains. Here we present the design of a domain-independent training system based on simulation environments, capable to be reused in different domains and especially in the industrial ones, saving costs considerably. The main idea behind the system design is the separation between the domain logic and the trainer role. This distinction is achieved by the adoption of a modular and flexible agent-based system approach. We present a first case study for training advanced technicians to learn maintenance procedures for complex medium tension equipments.
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Micro-power converters for energy scavenging from multiple radio-frequency and piezoelectric sources
No full textThis paper presents recent research results obtained in the field of energy scavenging from multiple vibrational and RF sources.
The presented micro-power converter circuit allows to extract with irregular vibrations typical of train passenger cabins at least +41% more power with respect to passive interfaces at the expense of an intrinsic power consumption as low as 5.5uW/source.
A multi-band rectenna system for GSM900, GSM1800 and Wi-Fi bands was also developed by means of an integrated design flow. A prototype of the rectenna with an actively controlled power converter showed to harvest tens of uW with an extra power consumption of 6.8uW.
In both cases measurements were taken in realistic operating conditions, with typical irregular environmental sources
Recurrent intussusception of the sigmoid colon caused by a transanal protruding sessile tubulo-villous malignat polyp.
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