323,703 research outputs found
Artificial Intelligence and Pain Medicine: an Introduction [Letter]
No full textMarco Cascella,1 Federica Monaco,2 Ornella Piazza1 1Anesthesia and Pain Medicine, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, 84081, Italy; 2Anesthesia and Pain Management, ASL NA/1, Naples, ItalyCorrespondence: Marco Cascella, Anesthesia and Pain Medicine, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Via S. Allende, Baronissi, 84081, Italy, Email [email protected]; [email protected]
Electric Drive Supervisor for Milling Process 4.0 Automation : A Process Analytical Approach with IIoT NIR Devices for Common Wheat
No full textThe milling industry envisions solutions to become fully compatible with the industry 4.0 technology where sensors interconnect devices, machines and processes. In this contest, the work presents an integrated solution merging a deeper understanding and control of the process due to real-time data collection by MicroNIR sensors (VIAVI, Santa Rosa, CA)—directly from the manufacturing process—and data analysis by Chemometrics. To the aim the sensors were positioned at wheat cleaning and at the flour blends phase and near infrared spectra (951–1608 nm) were collected online. Regression models were developed merging the spectra information with the results obtained by reference analyses, i.e., chemical composition and rheological properties of dough by Farinograph® (Brabender GmbH and Co., Duisburg, Germany), Alveograph® (Chopin, NG Villeneuve-la-Garenne Cedex, France) and Extensograph®.(Brabender GmbH and Co., Duisburg, Germany) The model performance was tested by an external dataset obtaining, for most of the parameters, RPRED higher than 0.80 and Root Mean Squares Errors in prediction lower than two-fold the value of the reference method errors. The real-time implementation resulted in optimal (100% of samples) or really good (99.9%–80% of samples) prediction ability. The proposed work succeeded in the implementation of a process analytical approach with Industrial Internet of Things near infrared (IIoT NIR) devices for the prediction of relevant grain and flour characteristics of common wheat at the industrial level
A PAT approach for common wheat with IIoT NIR devices
No full textA conference abstract from NIRItalia online 2021 in English and Italian.The authors gratefully acknowledge the support from Gruppo Casillo S.p.a. and the research assistance of Politecnico di Bari and I4M–Innovation for Mills R&D laboratory–Bari, Italy. Moreover, the authors wish to thank Emiliano Genorini and VIAVI Solutions for their valuable technical support
„NAPULJSKA ŠKOLA ELEKTROTERAPIJE” IZMEĐU KRAJA DEVETNAESTOG I PRVIH DESETLJEĆA DVADESETOG STOLJEĆA
No full textElectrotherapy is the use of electrical energy as a medical treatment. In the nineteenth century, the “golden age” of electrotherapy, the development of this discipline was part of a historical-scientific context characterized by the affirmation of neurology as an autonomous branch and, finally, detached from psychiatry. After a period of limited scientific interest and development, in the second half of the 20th century, electrotherapy underwent a revival. Nowadays, the use of electrotherapy has been researched and accepted in various fields of medicine, including but not limited to rehabilitation, neurology, pain management, and oncology.
From its first applications, electrotherapy joined neurology which used it for both diagnostic and therapeutic purposes. In Italy, several scientists carried out experiments on the subject, and an important contribution to the development of the discipline was provided by the “Neapolitan school of electrotherapy”. This improvement was made above all by Francesco Vizioli (1834- 1899) and his pupil Francesco Paolo Sgobbo (1860-1936). Despite these premises, however, the decline of electrotherapy as an autonomous science soon came. Meanwhile, radiology, associated initially with electrotherapy, developed rapidly. When Mario Bertolotti (1876- 1957), former professor of Radiology at the University of Turin and one of the founders of Italian radiology, succeeded Sgobbo in 1935, the name (and the discipline) “electrotherapy” was deleted from the diction of the new chair, and from that of the department, which was indicated only as “Radiology”. Radiodiagnostic devices, supplies, and roentgen therapy equipment replaced the numerous devices used for electrotherapy.
This manuscript is focused on the Neapolitan school of electrotherapy from the late nineteenth century to the beginning of the twentieth. The work of the leading figures who have given the greatest impetus to the study and application of electrotherapy is described. Finally, the electrotherapy devices used are briefly illustrated.Elektroterapija je upotreba električne energije u svrhu liječenja. U 19. stoljeću, zlatnom dobu elektroterapije, razvoj te discipline bio je dio povijesno-znanstvenog konteksta koji je karakterizirala afirmacija neurologije kao autonomne grane, da bi se naposljetku odvojila od psihijatrije. Nakon razdoblja ograničenoga znanstvenog interesa i razvoja, elektroterapija je u drugoj polovici 20. stoljeća doživjela preporod, a danas je uporaba elektroterapije istražena i prihvaćena u raznim područjima medicine, uključujući, ali ne ograničavajući se na rehabilitaciju, neurologiju, liječenje boli i onkologiju.
Od svoje prve primjene elektroterapija se pridružila neurologiji koja ju je koristila u dijagnostičke i terapijske svrhe. U Italiji je nekoliko znanstvenika provelo eksperimente na tu temu, a važan doprinos razvoju discipline dala je “napuljska škola elektroterapije”. Prije svega na poboljšanju su radili Francesco Vizioli (1834. – 1899.) i njegov učenik Francesco Paolo Sgobbo (1860. – 1936.). Unatoč tim premisama, međutim, ubrzo je došlo do nazadovanja elektroterapije kao autonomne znanosti. U međuvremenu se radiologija, koja je izvorno bila povezana s elektroterapijom, sve brže razvijala. Kada je Mario Bertolotti (1876. – 1957.), bivši profesor radiologije na Sveučilištu u Torinu i jedan od utemeljitelja talijanske radiologije, 1935. naslijedio Sgobboa, naziv (i disciplina) “elektroterapija” izbrisan je iz naziva nove katedre, kao i iz odjela koji je označen samo kao Radiologija. Radiodijagnostički uređaji i pribor te oprema za rendgensku terapiju zamijenili su brojne uređaje za elektroterapiju.
Ovaj članak fokusiran je na djelovanje „napuljske škole elektroterapije“ od kraja 19. do početka 20. stoljeća. Opisano je djelovanje vodećih osoba koje su dale najveći poticaj proučavanju i primjeni elektroterapije. Na kraju, ukratko su prikazani uređaji korišteni za elektroterapiju
Benthic foraminiferal assemblages from a central Apennines early Middle Miocene section: preliminary paleoecological observations
No full textQuantitative analyses of benthic foraminiferal assemblages were carried out on a Burdigalian - Langhian succession cropping out along the Adriatic coast (Cònero Riviera, Marche region, Italy). This succession, about 56 m thick, mainly consists of cyclically bedded mostly brown marls and more indurated marls, and subordinately of limestones. The lower part of the succession (0 - 23m) is characterized by the occurrence of 4 composite but apparently massive layers (“megabeds”).
By integrating the calcareous plankton events with the magnetostratigraphic record the section results to range from C5Cn.1n to C5Bn.2n Subchrons (Gennari et al., 2009).
The most abundant and/or paleoecologically significant benthic taxa are: Bolivina reticulata, B. spathulata, Bulimina costata, Cibicidoides dutemplei/subhaidingerii, C. incrassatus and C. pachyderma, Gyroidina spp., Hanzawaia boueana, Lenticulina spp., Melonis barleeanum, Siphonina reticulata and Uvigerina semiornata.
The co-occurrence and the relative abundance of B. reticulata, C. dutemplei/subhaidingerii and H. boueana suggest a paleobathymetry ranging from the upper to the middle bathyal zones.
The most remarkable changes recorded in the benthic foraminiferal assemblages are shown by the pattern of the Benthic Number and the abundance curves of B. reticulata, B. spathulata, B. costata, C. dutemplei/subhaidingerii, C. incrassatus, Gyroidina spp., Lenticulina spp., S. reticulata and U. semiornata. In particular significant variations are recorded around 30 m, about 7 m above the disappearance of the “megabeds”. These variations allow the distinction of the following two intervals:
0 – 30 m interval: general high values of BN; assemblage composition characterized by the predominance of B. spathulata and Lenticulina spp., dysoxic and suboxic species respectively (Kaiho, 1994), and the occurrence of B. costata, a high productivity typical species (Van der Zwaan, 1982; Russo et al., 2007), and of the suboxic species Gyroidina spp. (Kaiho, 1994) and U. semiornata (Borsetti et al., 1986);
30 – 56 m interval: decrease in the BN; disappearance of B. spathulata and B. costata, decrease of Gyroidina spp., Lenticulina spp. and U. semiornata; increase and appearance of the oxic species B. reticulata, and C. dutemplei/subhaidingerii, C. incrassatus and S. reticulata respectively (Van der Zwaan, 1982; Kaiho, 1994; Russo et al., 2007).
In conclusion changes in the BN pattern and assemblages composition are indicative of bottom water masses characterized by dysoxic/suboxic conditions, maybe due to a relatively higher productivity during the deposition of the “megabeds” (0 - 30 m interval) and an increase of the bottom water oxygen content together with a relatively decrease of productivity in the upper part of the succession (30 - 56 m).
References
Borsetti A.M., Iaccarino S., Jorissen F.J., Poignant A., Sztrakos K., Van der Zwaan G.J., Verhallen P.J.J.M., 1986, The Neogene development of Uvigerina in the Mediterranean. In Van der Zwaan G.J., Jorissen F.J., Verhallen P.J.J.M. & Von Daniels C.H. (eds.), Atlantic-European Oligocene to Recent Uvigerina taxonomy, paleoecolgy and paleobiogeography. Utrecht Micropaleontological Bulletins, 35, 183-235.
Gennari R., Sagnotti L., Cascella A., Iaccarino S.M., Turco E., 2009, Magnetostratigraphy and rock magnetism of La Vedova section (Conero Riviera, Italy). 13th Congress RCMNS – 2nd – 6th September 2009, Naples, Italy, Acta Naturalia de “Ateneo Parmense”, 45, 1/4, 10-11.
Kaiho K., 1994, Benthic foraminiferal dissolved-oxygen index and dissolved-oxygen levels in the modern ocean. Geology, 22: 719-722, Boulder.
Russo B., Curcio E. & Iaccarino S., 2007, Paleoecology and paleoceanography of a Langhian succession (Tremiti Islands, southern Adriatic Sea, Italy) based on benthic foraminifera. Boll. Soc. Paleont. It., 46(2-3): 107-124, Modena.
Van der Zwaan G.J., 1982, Paleoecology of Late Miocene foraminifera. Utrecht Micropal. Bull., 25: 1-201 pp., Utrecht
Hybrid Particle-Field Model for Conformational Dynamics of Peptide Chains
No full textWe propose the first model of a polypeptide chain based on a hybrid-particle field approach. The intramolecular potential is built on a two-bead coarse grain mapping for each amino acid. We employ a combined potential for the bending and the torsional degrees of freedom that ensures the stabilization of secondary structure elements in the conformational space of the polypeptide. The electrostatic dipoles associated with the peptide bonds of the main chain are reconstructed by a topological procedure. The intermolecular interactions comprising both the solute and the explicit solvent are treated by a density functional-based mean-field potential. Molecular dynamics simulations on a series of test systems show how the model here introduced is able to capture all the main features of polypeptides. In particular, homopolymers of different lengths yield a complex folding phase diagram, covering from the collapsed to swollen state. Moreover, simulations on models of a four-helix bundle and of an alpha + beta peptide evidence how the collapse of the hydrophobic core drives the appearance of both folded motifs and the stabilization of tertiary or quaternary assemblies. Finally, the polypeptide model is able to structurally respond to the environmental changes caused by the presence of a lipid bilayer
Sensorless stator flux oriented control of IMS using a new Delayed-State KF-based algorithm
No full textThis paper proposes a new reduced delayed-state Kalman filter (DSKF) based algorithm to realize the speed-sensorless vector control of induction motor. This algorithm estimates the stator flux components in the stationary reference frame, using the derivatives of the stator flux components as mathematical model and the stator voltage equations as observation model. The DSKF-based algorithm accurately estimates the stator flux components in transient operations because the derivative of the absolute stator flux value is taken into account as a forcing term in the mathematical model, so that applications both in flux rising operations and in field weakening region are possible. The estimated stator flux components are used for stator field orientation control (SFOC) without rotor speed sensor. Experiments show that the sensorless control scheme using the new DSKF-based algorithm requires a low computational effort, is stable and effective also at low speeds
La stagione dei programmi integrati in Puglia: prime valutazioni sui processi partecipativi
No full textIl quadro dei nuovi strumenti legislativi e programmatici regionali pugliesi (PIRP, PIRU, PISU/PIST)in materia di rigenerazione urbana, edilizia residenziale sociale e sostenibilità dell'abitare rappresentano non solo il contesto nel quale attuare la riforma delle politiche abitative ma anche la cornice nella quale armonizzare e integrare attori e funzioni della riforma stessa. Il carattere innovativo dei programmi integrati, soprattutto in riferimento ai processi partecipativi, rendono necessario l'avvio di una riflessione ed una valutazione dell'efficacia di questi processi in termini di inclusione, eterogeneità e rappresentatività sociale. In mancanza di dati completi sui risultati di questa programmazione, dovuta al fatto che la loro implementazione è ancora in itinere, si ritiene possibile in questa fase procedere attraverso una comparazione degli strumenti legislativi dei PIRP e dei PISU evidenziando, anche con metodologie di analisi qualitativa, i presupposti cognitivi e teorici che stanno alla base delle scelte del legislatore
Energy-efficiency optimization of the biomass pelletting process by using statistical indicators
No full textBiomass pelleting process strongly depends on a number of variables hard to be simultaneously
controlled. This paper suggests a method to ensure pellets moisture optimization and process
energy saving. An experimental testbed was arranged in order to validate the performance of the
proposed strategy. It is based on a closed-loop control system that regulates material moisture
and flow rate, but its robustness is affected by the control-loop delay (the actuator delay is about
10 minutes) and by the random arrangement of the pellets inside the cooler that strongly affects
product moisture (the measurement errors are not negligible). To overcome those problems, a
robust statistical approach was adopted to reach the best trade-off between estimation accuracy
and computational effort. It was derived by the well-known Random Close Packing model and
statistical estimator. Experimental results prove the effectiveness of the proposed approach that
provides moisture errors less than 7.2% with a continuous limitation of energy consumption. The
present work is part of Idea75’s project – SEI Smart supervisor for Energy efficiency optimization
of Industrial processes – funded by Regione – PO FESR 2007-2013, Asse I, Linea di Intervento 1.1.
Azione 1.1.3 – Aiuti alle piccole imprese innovative di nuova costituzione
A 2-GS/s 0.35μm SiGe track-and-hold amplifier with 7-GHz analog bandwidth using a novel input buffer
No full textIn this paper a Track-and-Hold amplifier (THA), designed in a low cost 0.35μm SiGe 60GHz technology, suitable for SDR applications, is presented. With the implementation of a novel input buffer, the circuit shows a 3dB bandwidth of 7GHz and a distortion better than 50dB up to, about, that frequency during Track phase. Simulations show a THD better than 50dB up to a frequency of 5.77GHz at 2GS/s and a "reconstructed" 3dB full power bandwidth (FPBW) of 5.86GHz. The circuit draws about 220mA from 3.3V supply, considering all the sampling stage, the output buffer and clock driver
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