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Akademický článek

Equatorial plasma bubbles features over the Brazilian sector according to the solar cycle and geomagnetic activity level

Autor: C. S. Carmo, L. Dai, C. M. Denardini, C. A. O. B. Figueiredo, C. M. Wrasse, L. C. A. Resende, D. Barros, J. Moro, S. S. Chen, G. A. S. Picanço, R. P. Silva, C. Wang, H. Li, Z. Liu

Publikováno v: Frontiers in Astronomy and Space Sciences, Vol 10 (2023)

Equatorial plasma bubbles (EPBs) can lead to signal degradation, affecting the measurement accuracy. Studying EPBs and their characteristics has gained increasing importance. The characteristics of EPBs were investigated using the rate of total elect

Externí odkaz: https://doaj.org/article/2ea565f1cf1b4668991285e6fa1026fe

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Akademický článek

Study of the equatorial and low-latitude total electron content response to plasma bubbles during solar cycle 24–25 over the Brazilian region using a Disturbance Ionosphere indeX

Autor: G. A. S. Picanço, C. M. Denardini, P. A. B. Nogueira, L. C. A. Resende, C. S. Carmo, S. S. Chen, P. F. Barbosa-Neto, E. Romero-Hernandez

Publikováno v: Annales Geophysicae, Vol 40, Pp 503-517 (2022)

This work uses the Disturbance Ionosphere indeX (DIX) to evaluate the ionospheric responses to equatorial plasma bubble (EPB) events from 2013 to 2020 over the Brazilian equatorial and low latitudes. We have compared the DIX variations during EPBs to

Externí odkaz: https://doaj.org/article/053ce351b8fd464197b1d3d5f1951aca

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Akademický článek

Analysis of the different physical mechanisms in the atypical sporadic E (Es) layer occurrence over a low latitude region in the Brazilian sector

Autor: L. C. A. Resende, Y. Zhu, C. M. Denardini, R. A. J. Chagas, L. A. Da Silva, V. F. Andrioli, C. A. O. Figueiredo, J. P. Marchezi, S. S. Chen, J. Moro, R. P. Silva, H. Li, C. Wang, Z. Liu

Publikováno v: Frontiers in Astronomy and Space Sciences, Vol 10 (2023)

We present a study about the atypical and spreading Sporadic E-layers (Es) observed in Digisonde data. We analyzed a set of days around space weather events from 2016 to 2018 over Cachoeira Paulista (CXP, 22.41°S, 45°W, dip ∼35°), a low-latitude

Externí odkaz: https://doaj.org/article/668e7a09165249fe8ad4e157952345ee

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Akademický článek

A multi-instrumental and modeling analysis of the ionospheric responses to the solar eclipse on 14 December 2020 over the Brazilian region

Autor: L. C. A. Resende, Y. Zhu, C. M. Denardini, S. S. Chen, R. A. J. Chagas, L. A. Da Silva, C. S. Carmo, J. Moro, D. Barros, P. A. B. Nogueira, J. P. Marchezi, G. A. S. Picanço, P. Jauer, R. P. Silva, D. Silva, J. A. Carrasco, C. Wang, Z. Liu

Publikováno v: Annales Geophysicae, Vol 40, Pp 191-203 (2022)

This work presents an analysis of the ionospheric responses to the solar eclipse that occurred on 14 December 2020 over the Brazilian sector. This event partially covers the south of Brazil, providing an excellent opportunity to study the modificatio

Externí odkaz: https://doaj.org/article/0028c42ec8334ed5bedc4d02b6a7f513

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Akademický článek

The role of the inner radiation belt dynamic in the generation of auroral-type sporadic E-layers over south American magnetic anomaly

Publikováno v: Frontiers in Astronomy and Space Sciences, Vol 9 (2022)

The dynamics of the electron population in the Earth’s radiation belts affect the upper atmosphere’s ionization level through the low-energy Electron Precipitation (EP). The impact of low-energy EP on the high-latitude ionosphere has been well ex

Externí odkaz: https://doaj.org/article/24eec9cb55234ddbbae5ab332dca539e

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Akademický článek

Cu+-containing physically crosslinked chitosan hydrogels with shape memory

Autor: Z. Y. Yu, Y. Li, Z. P. Feng, Z. H. Zhang, P. Li, Y. Chen, S. S. Chen, P. W. Li, Z. M. Yang

Publikováno v: eXPRESS Polymer Letters, Vol 13, Iss 9, Pp 785-793 (2019)

Physically crosslinked chitosan hydrogels have better biocompatibility and possess unique functional characteristics but suffer from poor mechanical properties. In the current study, we prepared Cu+-containing physically crosslinked chitosan hydrogel

Externí odkaz: https://doaj.org/article/dd6c3d0b95b542cfab0464abc8d95952

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Akademický článek

Anomalous thermal expansion in the deep super-cooled liquid region of a ZrCuAlAg bulk metallic glass

Autor: Q. Hu, J. M. Wang, Y. H. Yan, F. F. Luo, S. Guo, J. Liu, S. S. Chen, B. Huang, D. P. Lu, J. Z. Zou, X. R. Zeng

Publikováno v: Materials Research Letters, Vol 6, Iss 2, Pp 121-129 (2018)

Bulk metallic glasses (BMGs), like other glasses, soften in the super-cooled liquid region (SCLR). Here in this work, surprisingly, a large expansion is reported occurring in the deep SCLR of a Zr47Cu37Al8Ag8 BMG. Nano-crystals (NCs) are found precip

Externí odkaz: https://doaj.org/article/799f736c496d4a5a9dc620391f731499

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