19 research outputs found
Note illustrative della Carta Geologica d'Italia alla scala 1:50.000 - Foglio 450 Sant'Angelo dei Lombardi
Detection of beta-thalassemia mutations using the multiplex amplification refractory mutation system (MARMS) and the denaturing gradient gel electrophoresis (DGGE)
Schema geologico del transetto Monti Picentini orientali-Monti della Daunia meridionali: unità stratigrafiche ed evoluzione tettonica del settore esterno dell'Appennino meridionale.
Performance Evaluation for a HTS Transformer
The adoption of High Temperature Superconductors
(HTS) tapes is becoming a suitable and interesting alternative to copper for windings in transformers, thanks to the improvement
in performance and the lowering of costs. Of course, optimized designs, different with respect to usual layouts, must be considered,
due to the additional requirements of HTS tapes, such as minimization of orthogonal magnetic fields and consideration of additional losses in the HTS. In the framework of a scientific cooperation
among some Italian Universities and private companies, a test model for a 10KVA transformer with HTS secondary windings has
been developed, and validated against a demonstrative prototype, manufactured during the project. In the paper, the device model
performance is assessed, with particular care to the HTS losses modeling, and some comparisons to the experimental results are
presented
Rapid identification of beta-globin gene cluster mutations by a variety of PCR based procedures
Manufactured shoes in the prevention of diabetic foot ulcers
OBJECTIVE - To evaluate the efficacy of manufactured shoes specially designed for diabetic patients (Podiabetes by Buratto Italy) to prevent relapses of foot ulcerations. RESEARCH DESIGN AND METHODS - A prospective multicenter randomized follow-up study of patients with previous foot ulcerations was conducted. Patients were alternatively assigned to wear either their own shoes (control group, C; n = 36) or therapeutic shoes (Podiabetes group, P; n = 33). The number of ulcer relapses was recorded during 1-year follow-up. RESULTS - Both C and P groups had similar risk factors for foot ulceration (i.e., previous foot ulceration, mean vibratory perception threshold >25 mV). After 1 year the foot ulcer relapses were significantly lower in P than in C (27.7 vs. 58.3%, P = 0.009; odds ratio 0.26 [0.2-1.54]). In a multiple regression analysis, the use of therapeutic shoes was negatively associated with foot ulcer relapses (coefficient of variation = -0.315; 95% confidence interval = -0.54 to -0.08; P = 0.009). CONCLUSIONS - The use of specially designed shoes is effective in preventing relapses in diabetic patients with previous ulceration
New Perspectives in HTS Transformer Design
Power transformers based on High Temperature Superconductors (HTS) technology
are an appealing promise for several practical applications. The present designs still leave wide
margins of possible improvement in terms of both layout optimisation and introduction of new
technologies. In the framework of a technical-scientific cooperation among scientific and
industrial subjects, a 10 kVA single-phase transformer was designed and manufactured, using
copper for primary windings and BSCCO-2223 HTS tape for secondary windings. The layout
has been optimized taking into account the particular characteristics of BSCCO tapes, in
particular their AC losses, and the usual figures (stray flux, Joule and iron losses, weight and
overall footprint) considered in transformers design. The prototype has then been realized and
characterized, using general as well as specific tests. The performance of the device has been
evaluated and compared with numerical calculation. In the paper, an overview of the device
design and manufacturing will be presented, together with a critical comparison between
computed and measured performance