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1. |
Record Nr. |
UNINA9910349505203321 |
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Autore |
Montagud-Camps Victor |
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Titolo |
Turbulent Heating and Anisotropy in the Solar Wind : A Numerical Study / / by Victor Montagud-Camps |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2019 |
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ISBN |
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Edizione |
[1st ed. 2019.] |
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Descrizione fisica |
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1 online resource (XVII, 123 p. 45 illus., 13 illus. in color.) |
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Collana |
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Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053 |
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Disciplina |
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Soggetti |
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Solar system |
Space sciences |
Astrophysics |
Mathematical physics |
Solar and Heliospheric Physics |
Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) |
Theoretical Astrophysics |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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"Doctoral thesis accepted by Paris-Sud University, Orsay, France"--Title page. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Introduction -- Solar Wind -- Plasma description -- Turbulence -- Solar Wind turbulence -- Plan of this thesis -- The Maltese Cross revisited -- Parameters and initial conditions -- Defining spectral properties in EBM simulations -- Results -- Discussion -- Can the Maltese Cross heat? -- Paper ApJ 2018: "Turbulent Heating between 0.2 and 1 au: A Numerical Study" -- Heating fast winds -- Conclusions and future work -- Conclusions -- Future work: Anisotropy temperature description -- Appendix. |
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Sommario/riassunto |
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This book presents two important new findings. First, it demonstrates from first principles that turbulent heating offers an explanation for the non-adiabatic decay of proton temperature in solar wind. Until now, this was only proved with reduced or phenomenological models. Second, the book demonstrates that the two types of anisotropy of |
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turbulent fluctuations that are observed in solar wind at 1AU originate not only from two distinct classes of conditions near the Sun but also from the imbalance in Alfvén wave populations. These anisotropies do not affect the overall turbulent heating if we take into account the relation observed in solar wind between anisotropy and Alfvén wave imbalance. In terms of the methods used to obtain these achievements, the author shows the need to find a very delicate balance between turbulent decay and expansion losses, so as to directly solve the magnetohydrodynamic equations, including the wind expansion effects. . |
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2. |
Record Nr. |
UNINA9910580214203321 |
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Autore |
Piana Edoardo |
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Titolo |
Acoustic Properties of Absorbing Materials |
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Pubbl/distr/stampa |
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Basel, : MDPI - Multidisciplinary Digital Publishing Institute, 2022 |
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Descrizione fisica |
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1 online resource (204 p.) |
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Soggetti |
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History of engineering & technology |
Technology: general issues |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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Thanks to the progress made in materials research and to the introduction of innovative manufacturing technologies, a wide range of sound-absorbing elements are currently available to adjust the acoustic features of an environment. Nowadays, performance is only one of the required specifications, together with environmental compatibility, longevity, and affordable cost. This book collects the most recent advances in the broad-spectrum characterization of sound-absorbing materials used in civil, industrial, and tertiary applications, by means of experimental, numerical, or theoretical studies. |
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3. |
Record Nr. |
UNINA9910895843003321 |
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Titolo |
BP statistical review of world energy |
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Pubbl/distr/stampa |
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London, : British Petroleum Co., [1981?-] |
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Descrizione fisica |
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1 online resource : illustrations |
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Disciplina |
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Soggetti |
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Petroleum industry and trade |
Energy industries |
Pétrole - Industrie et commerce |
Industries énergétiques |
83.65 energy economics |
PETROLEUM INDUSTRY |
STATISTICS |
Statistics |
Periodical |
periodicals. |
Periodicals |
Statistics. |
Periodicals. |
Statistiques. |
Périodiques. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Periodico |
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