472 research outputs found

    Optimization of Pr3+:ZBLAN fiber amplifiers

    Get PDF

    Gain and noise penalty for detuned 980 nm pumping or erbium-doped fiber power amplifiers

    Get PDF

    Lxs fantasmas de mi placard

    Get PDF
    El presente proyecto final tiene como objetivo la presentación de manera escrita del trabajo de graduación correspondiente al cortometraje Lxs fantasmas de mi placard. Dentro de este proyecto se encuentran especificaciones en cuanto al contexto geográfico y temporal y el proceso de grabación, como así también sobre el proceso de creación y motivación que llevaron a la realización del mismo.Tesis en co-autoría con Aldana Agustina Arrative (ver "Documentos relacionados").Facultad de Arte

    L’intelligenza artificiale in movimento. L’impatto sui diritti costituzionali della smart mobility

    Get PDF
    L’intero comparto della mobilità sta vivendo una rivoluzione: il cambiamento, che ha già visto, in una prima fase, l’introduzione della guida assistita, porterà, in tempi non troppo lunghi, alla vera e propria sostituzione dell’intelligenza artificiale all’uomo nella guida, di modo che tutti i mezzi di trasporto saranno totalmente autonomi, ossia capaci di condursi da soli. Muovendo dalle trasformazioni in essere e dalla loro attuale regolazione a livello normativo, il volume indaga i rapporti tra diritti e tecnologia, ricostruendo specificamente l’impatto del fenomeno della smart mobility sui diritti e sulle libertà costituzionali, in termini di maggiori o minori opportunità di godimento di essi

    Evaluation of the 800 nm pump band for erbium-doped fiber amplifiers

    Get PDF

    Children screening positive for language delay at 2.5 years: language disorder and developmental profiles

    Get PDF
    Purpose: To characterize language disorder and developmental profiles in children who screened positive for language delay but negative for autism at 2.5 years of age. Patients and methods: The first 100 children who screened positive for language delay – but negative for autism – in 2016 were assessed in detail by speech language pathologists. Parents completed a newly developed questionnaire covering eight domains – Motor, Executive functions, Perception, Memory, Language, Learning, Social skills and Child’s behaviour – with impairment scored for each domain. Results: ICD-10 language disorder diagnoses were made in 87/100 children (29 girls, 58 boys). Of 52 children with mixed receptive–expressive language disorder, 32% had problems in other developmental areas according to the “global rating” in the impairment questions of the questionnaire. Of the 35 with expressive language disorder, 21% had problems in other areas according to the impairment questions. Thirteen children had isolated language delay with no other diagnoses according to the speech and language pathologists’ assessment; however, 23% of them had problems according to the parental rating on the impairment questions. Conclusion: Most children screening positive for language delay but negative for autism at age 2.5 years were diagnosed with ICD-10 language disorder diagnoses. Parents in about one in four cases reported impairing problems within other developmental areas. Possible explanations for the findings are discussed

    Assessing false-belief understanding in children with autism using a computer application: a pilot study

    Get PDF
    We have developed a False-Belief (FB) understanding task for use on a computer tablet, trying to assess FB understanding in a less social way. It is based on classical FB protocols, and additionally includes a manipulation of language in an attempt to explore the facilitating effect of linguistic support during FB processing. Specifically, the FB task was presented in three auditory conditions: narrative, silent, and interference. The task was assumed to shed new light on the FB difficulties often observed in Autism Spectrum Disorder (ASD). Sixty-eight children with ASD (M = 7.5 years) and an age matched comparison group with 98 typically developing (TD) children were assessed with the FB task. The children with ASD did not perform above chance level in any condition, and significant differences in success rates were found between the groups in two conditions (silent and narrative), with TD children performing better. We discuss implications, limitations, and further developments

    An investigation of the temperature dependency of the relative population inversion and the gain in EDFAs by the modified rate equations

    Full text link
    The dependence of the relative population inversion in Er3+-doped fiber amplifiers (EDFAs) upon temperature and cross sections, taking into account the amplified spontaneous emission (ASE), are investigated theoretically by the modified rate equation model for 980 nm and 1470 nm pumping conditions. For the temperature range from 0 to +50 oC and at the different signal wavelengths, the temperature and cross section dependent gain characteristics with respect to pump powers are also examined in detail for the both conditions. As a consequence, the dependence of the performance of EDFAs on temperature for 980 nm pumping is weaker than that for 1470 nm pumping, not only at room temperature but also at the temperature range of 0 to +50 oC. However, the performance of EDFAs is more efficient at the pumping wavelength of 1470 nm than that of 980 nm for a wide range of temperature and high-pump powers. The results of this theoretical model are a good agreement with the experimental ones in the literature.Comment: 17 pages, 6 figures. submitted to Optics Communication
    corecore