ABSTRACT
An enhanced Fast Digital Integrator (eFDI) was prototyped to satisfy the new requirements arising from current on-field exploitation of the previous Fast Digital Integrator in magnetic measurements for particle accelerators at CERN. In particular, the prototype achieves improved performance in terms of offset (5 ppm on 10 V fullscale), self-calibration accuracy (1 ppm of residual error), and data throughput (100 MB/s), by simultaneously preserving high-level signal-to-noise and distortion ratio (SINAD 105 dB at 10 Hz). In this paper, initially, the specifications, the design solutions, and the main features of the eFDI are illustrated. Then, the experimental results of the metrological characterization are compared with the CERN state-of-the-art integrator FDI performance in order to highlight the achieved improvements.
ABSTRACT
Evolutionary approach to centralized multiple-faults diagnostics is extended to distributed transducer networks monitoring large experimental systems. Given a set of anomalies detected by the transducers, each instance of the multiple-fault problem is formulated as several parallel communicating sub-tasks running on different transducers, and thus solved one-by-one on spatially separated parallel processes. A micro-genetic algorithm merges evaluation time efficiency, arising from a small-size population distributed on parallel-synchronized processors, with the effectiveness of centralized evolutionary techniques due to optimal mix of exploitation and exploration. In this way, holistic view and effectiveness advantages of evolutionary global diagnostics are combined with reliability and efficiency benefits of distributed parallel architectures. The proposed approach was validated both (i) by simulation at CERN, on a case study of a cold box for enhancing the cryogeny diagnostics of the Large Hadron Collider, and (ii) by experiments, under the framework of the industrial research project MONDIEVOB (Building Remote Monitoring and Evolutionary Diagnostics), co-funded by EU and the company Del Bo srl, Napoli, Italy.
ABSTRACT
The frenula of the oral cavity represent the insertion of perioral muscles in jaws, consisting of a fold of the triangular fibro-connective tissue covered with mucous membrane and usually inserted at the mucogingival line. The purpose of this work, after a review of literature, was to provide the clinical signs above the median frenum removal order for the orthodontic closure of a interincisor diastema and to present a new surgical technique.
Subject(s)
Diastema/surgery , Labial Frenum/surgery , Adolescent , Child , Humans , Suture Techniques , Treatment Outcome , Wound HealingSubject(s)
Biocompatible Materials , Intestines/surgery , Sutures , Catgut , Humans , Nylons , Polydioxanone , Polyethylene Terephthalates , Polyglactin 910 , Polyglycolic AcidABSTRACT
The Authors emphasize the importance of a perfect anatomo-surgical knowledge for laparoscopic cholecystectomy. Therefore, the anatomic structures of the region are taken into account from a "laparoscopic" point of view, with great care to accessory bile duct, hepatic artery, and cystic artery. Knowledge and confidence with the anatomy of the region are essential to identify abnormal structures and subsequently switch from a laparoscopic to a laparotomic approach.
