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Johan Masreliez

Carl Johan Masreliez (Stoccolma, 15 aprile 1939) è un fisico, ingegnere e imprenditore svedese naturalizzato statunitense. Ha lasciato la Svezia nel 1967, per lavorare come ingegnere di ricerca ed è ora cittadino americano che vive presso Seattle, Washington. Negli anni '70 è stata una figura importante per lo sviluppo della teoria del controllo automatico.[1] A partire dal 1995 circa si è dedicato alla cosmologia fisica non standard e con scarso successo, se non in Russia.[2]

Biografia

Masreliez è nato a Stoccolma e ha poi terminato gli studi presso il ginnasio "Nya Elementar" Åkeshov a Bromma. Iniziò gli studi di fisica tecnica nel 1959, a Stoccolma, presso l'Istituto reale di tecnologia (Istituto Reale di Tecnologia), diplomandosi come ingegnere nel 1964.

Ingegneria

Ha poi lavorato per alcune imprese svedesi, ivi compresa la Atlas Copco. Si trasferisce negli Stati Uniti nel 1967 per assumere una posizione nella Società Boeing a Seattle.

Carriera accademica

Mentre lavorava per la Boeing, ha frequentato il dipartimento di Ingegneria elettrica dell'Università di Washington, dove ha conseguito il suo dottorato di ricerca nel 1972[3], specializzandosi in statistica e algoritmi statistici per produrre stimatori robusti.[4] Ha poi ottenuto un contratto come Assistant Professor fino al 1974. Ha contribuito al miglioramento del filtro di Kalman[5] con un algoritmo ricorsivo (1975) in seguito chiamato Teorema di Masreliez.[6] Spangle (2008) dà la formulazione matematica del teorema in un'applicazione di simulazione.[7]

Cosmologia

La sua Teoria del Cosmo in Espansione Scalare (SEC) è un nuovo modello di espansione in scala del cosmo che si accorda meglio con le osservazioni astronomiche di quanto non faccia la teoria del Big Bang, e potrebbe fornire l'anello mancante tra la relatività generale e la meccanica quantistica. Il fattore di scala del modello SEC dà un meccanismo spostamento verso il rosso luce stanca con dilatazione del tempo.[8] In questa cosmologia non standard non c'è accelerazione e l'importo della quintessenza è esatto, cioè la curvatura dello spaziotempo. “SEC”, proponendo invece di includere l'energia oscura nel tensore energia impulso del modello, come avviene anche senza accelerazione con la formula del modello per spostamento verso il rosso.[9]

Note

  1. ^ Teorema di Masreliez su Google Scholar.
  2. ^ Марелье; ТЕЧЕНИЕ ВРЕМЕНИ Новые физические идеи Archiviato il 5 marzo 2016 in Internet Archive., Accademia russa delle scienze (2015)!
  3. ^ Masreliez, C. J.; Robust recursive estimation and filtering, Ph.D. dissertation, University of Washington, Seattle, 1972.
  4. ^ Statistica Robusta (2012)
  5. ^ Masreliez; IEEE Trans. Auto. Control (1975), 20, pág. 107—110.
  6. ^ R. Douglas Martin; Approximate conditional-mean type smoothers and interpolators, Lecture Notes in Mathematics, Volume 757/1979, 117-143, DOI: 10.1007/BFb0098493 , Heidelberg (1979).
  7. ^ Bernhard Spangl et al.;Approximate Conditional-mean Type Filtering for State-space Models, Universität für Bodenkultur, Wien (2008).
  8. ^ Masreliez C. J.; Preprint The Pioneer Anomaly, Astrophysics & Space Science (2005), v. 299, no. 1, pp. 83-108.
  9. ^ Masreliez; preprint, Estfound web pp. 13-20, The Pioneer Anomaly (2005).

Bibliografia

Pubblicazioni popolare

Pubblicazioni scientifiche

  • C. Johan Masreliez, Approximate non-Gaussian filtering with linear state and observation relations , IEEE Trans. Auto. Control (1975), 20, pag. 107–110.
  • R.D. Martin e C.Johan Masreliez, Robust estimation via stochastic approximation, IEEE Trans. Inform. Theory (1975), 21(263-271).
  • Informes, lista en Smithsonian/NASA Astrophysics Data System (ADS)

Voci correlate

Collegamenti esterni

Controllo di autoritàVIAF (EN26697607 · ISNI (EN0000 0000 4595 065X · LCCN (ENno99040200

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