Literatura académica sobre el tema "Corona polarization"
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Artículos de revistas sobre el tema "Corona polarization"
Ursini, F., G. Matt, S. Bianchi, A. Marinucci, M. Dovčiak y W. Zhang. "Prospects for differentiating extended coronal geometries in AGNs with the IXPE mission". Monthly Notices of the Royal Astronomical Society 510, n.º 3 (24 de diciembre de 2021): 3674–87. http://dx.doi.org/10.1093/mnras/stab3745.
Texto completoLiang, Y., Z. Q. Qu, Y. J. Chen, Y. Zhong, Z. M. Song y S. Y. Li. "Registration and imaging polarimetry of the Fe 6374 Å red coronal line during the 2017 total solar eclipse". Monthly Notices of the Royal Astronomical Society 503, n.º 4 (14 de abril de 2021): 5715–29. http://dx.doi.org/10.1093/mnras/stab463.
Texto completoMerzlyakov, V., Ts Tsvetkov, L. Starkova y R. Miteva. "Polarization of white-light solar corona and sky polarization effect during total solar eclipse on March 29, 2006". Serbian Astronomical Journal, n.º 199 (2019): 83–87. http://dx.doi.org/10.2298/saj190620005m.
Texto completoLebedev, A. N., I. A. Belenko, O. I. Bougaenko, I. S. Kim, O. T. Matsuura, E. Picazzio, R. P. Livi y Silvia H. B. Liv. "Eclipse Polarimetric Research of Prominences". International Astronomical Union Colloquium 167 (1998): 66–69. http://dx.doi.org/10.1017/s0252921100047308.
Texto completoKulidzanishvili, V., A. Mayer, V. Mayer y S. Danik. "The Corona Electropolarimetry during July 11, 1991 Solar Eclipse". International Astronomical Union Colloquium 144 (1994): 529–33. http://dx.doi.org/10.1017/s0252921100025987.
Texto completoMegha, A., M. Sampoorna, K. N. Nagendra y K. Sankarasubramanian. "Coronal magnetic field measurements using forbidden emission lines". Proceedings of the International Astronomical Union 13, S340 (febrero de 2018): 61–62. http://dx.doi.org/10.1017/s1743921318001023.
Texto completoLiu, Yu, Haosheng Lin y Jeff Kuhn. "Coronal magnetic fields from the inversion of linear polarization measurements". Proceedings of the International Astronomical Union 5, S264 (agosto de 2009): 96–98. http://dx.doi.org/10.1017/s174392130999247x.
Texto completoZhang, J. W., F. K. Gao, H. C. Sun, C. Putson y R. T. Liu. "Electrostrictive energy conversion property of cellular electrets after corona discharge". International Journal of Modern Physics B 32, n.º 07 (5 de marzo de 2018): 1850069. http://dx.doi.org/10.1142/s0217979218500698.
Texto completoGelfreikh, G. B., V. M. Bogod, V. E. Abramov-Maximov y S. V. Tsvetkov. "Measurements of Solar Magnetic Fields Using Radio Observations with the RATAN-600". International Astronomical Union Colloquium 141 (1993): 271–74. http://dx.doi.org/10.1017/s0252921100029213.
Texto completoSaint-Hilaire, Pascal, Juan Carlos Martínez Oliveros y Hugh S. Hudson. "Thomson Scattering in the Lower Corona in the Presence of Sunspots". Astrophysical Journal 923, n.º 2 (1 de diciembre de 2021): 276. http://dx.doi.org/10.3847/1538-4357/ac2f9b.
Texto completoTesis sobre el tema "Corona polarization"
Costa, Mauro Miguel. "Estudo dos sistemas poliméricos: poliestireno e poli(metacrilato de metila) dopado com o corante vermelho disperso 1". Universidade de São Paulo, 1999. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-15042014-095801/.
Texto completoSome electrical properties of guest-host polymeric systems made with polystyrene, PS, and poly(methyl methacrylate), PMMA, and the disperse red 1 dye, DR1 were investigated. The poling process of films were performed with the corona triode set up operating in two modes: i) charging with constant current, ii) with a constant grid voltage. The influence of parameters such as the charging current, electric field at the s, time, temperature and the percentage of DR1 was investigated. Measurements of the steady state current versus the electric field allowed us to show that the electric conduction process in both polymeric systems follow the Poole-Frenkel model. The electric polarization induced in samples was evaluated measuring the piroelectric coefficient, which is directly proportional to the polarization value. For PS(DR1) samples thermally stimulated current measurements were performed to investigate the electric polarization obtained by application of a dc voltage. Measurements of the complex dielectric constant with the two polymeric systems as function of the frequency for different temperatures were performed. Results showed that orientation and relaxation of DR1 dye in samples are related to the chain movement, i.e., α relaxation process.
Ramírez, Ray Fernando Hidalgo. "Atividade solar em comprimentos de onda mm e sub-mm e sua associação com uma ejeção de massa coronal". Universidade Presbiteriana Mackenzie, 2015. http://tede.mackenzie.br/jspui/handle/tede/1304.
Texto completoUniversidade Presbiteriana Mackenzie
Solar flares radio emissions provide detailed information on the energy release, particle acceleration, heating processes and plasma conditions at the sites where the radiation is generated. This study focuses in radio emission from millimeter, sub-millimeter and another complementary wavelengths obtained by recent observations that might improve the understanding of processes from the low chromosphere to the corona. Here we study a GOES class X1.7 flare on January 27, 2012 detected by the Solar Sub-millimeter Telescope (SST) at 212 and 405 GHz, and by the solar radio polarimeters (POEMAS) at 45 and 90 GHz. LASCO C2 coronagraph observed a coronal mass ejection (CME) with possible physical connection with phenomena observed at radio-frequencies, including changes in polarization degree (45 and 90 GHz) and enhancements of scintillation index (212 and 405 GHz). The complementary radio observations were obtained by the Radio Solar Telescopes Network (RSTN) at the single frequencies 0.2, 0.4, 0.6, 1.4, 2.7, 4.9, 8.8 and 15.4 GHz and at the 25 - 180 MHz band, and by the Green Bank Solar Radio Burst Spectrometer (GBSRBS) at the 100 - 300 MHz and 300 - 1200 MHz bands. The solar flare exhibits a complex time structure at microwaves consisting of three major enhancements. Type III-like metric and decametric bursts were accompanied by small polarized burst at 45 and 90 GHz with polarization degrees of 0.09 and 0.12, suggesting changes in the magnetic field strength the order of 700 and 2000 G, respectively. SST detected one impulsive burst and significant 10% enhancements of scintillation index intermittently throughout the event. The CME launch time inferred by back extrapolation of the LASCO coronagraph observations to the solar limb coincides approximately in time to the changes in polarization degree, suggesting that CME might be a result of a magnetic transient causing an instability generating the subsequent impulsive structures.
As emissões em rádio das explosões solares provém informações detalhadas dos processos de liberação de energia, aceleração de partículas, aquecimento e condições do plasma na região onde a radiação é gerada. Este estudo concentra-se em rádio emissões nos comprimentos de onda milimétricos, sub-milimétricos e outras frequências complementares obtidas por observações recentes que podem melhorar o entendimento dos processos na baixa cromosfera até a coroa. Foi estudada uma explosão solar classe GOES X1.7 ocorrida no dia 27 de janeiro de 2012, detectada pelo Telescópio Solar Sub-milimétrico (SST) em 212 e 405 GHz e pelos rádio polarímetros solares em 45 e 90 GHz. Uma ejeção de massa coronal (CME) foi observada pelo coronógrafo C2 de LASCO com possível conexão física com os fenômenos observados em rádio frequências, incluindo mudanças no grau de polarização (45 e 90 GHz) e aumentos no índice de cintilação (212 e 405 GHz). As rádio observações complementares foram obtidas em frequências distintas, pela Rede de Rádio Telescópios Solares (RSTN), de 0,2; 0,4; 0,6; 1,4; 2,7; 4,9; 8,8 e 15,4 GHz e nas faixas de 25 - 180 MHz, e pelo Rádio Espectrômetro Solar Green Bank (GBSRBS) nas faixas de 100 - 300 MHz e 300 - 1200 MHz. A explosão solar apresenta uma estrutura temporal complexa em micro-ondas composta por três aumentos característicos. Explosões métricas e decamétricas tipo III foram acompanhadas por pequenas explosões com polarização em 45 e 90 GHz com graus de polarização de 0,09 e 0,12, sugerindo variações de campo magnético da ordem de 700 e 2000 G, respectivamente. O SST detectou uma explosão impulsiva e aumentos significativos de 10% no índice de cintilação de forma intermitente durante todo o evento. O tempo de lançamento da CME inferido por extrapolação das observações do coronógrafo LASCO ao limbo solar coincide aproximadamente com o instante do excesso de emissão e mudança do grau de polarização em 45 e 90 GHz, sugerindo que a CME tenha resultado de um transiente magnético ocasionando uma instabilidade que gerou as estruturas impulsivas subsequentes.
Schmeltz, Margaux. "Microscopie de second harmonique résolue en polarisations linéaire et circulaire pour caractériser l'organisation 3D du collagène". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX074.
Texto completoCollagen is a major component of organ architecture in mammals where it forms various three-dimensional (3D) structures specific to each tissue. The visualization of this multi-scale 3D organization is crucial to decipher the structure of organs such as the cornea or the skin and to guide the engineering fully functional tissue substitutes. Moreover, the organization of collagen is also affected in many diseases, so that in situ quantitative characterization of such disorders is a major biomedical issue.SHG microscopy has been recognized for several years as the gold-standard technique for imaging fibrillar collagen in situ in unmarked tissues with excellent contrast. This thesis presents the development and the application of new polarization-based SHG microscopy modalities to obtain reliable and quantitative parameters in order to more accurately describe the three-dimensional structure of collagen.First, we present a modality using linear incident polarizations (P-SHG) to analyze the multi-scale organization of collagen in various tissues, healthy and pathological. These analyses were carried out on cultural heritage objects (parchments, made of collagen from animal skins) as well as on biological tissues (corneas). On one hand, taking advantage of the non-invasive nature of this modality, we characterize the degradation of collagen in ancient parchments, precious objects of art and history. This proves the interest of SHG microscopy in the field of cultural heritage, particularly to decipher the state of conservation of objects rich in collagen. On the other hand, quantitative imaging of healthy human corneas is presented, and compared to corneas with keratoconus, a common pathology today. Murine models of corneal keratoconus are also being studied to validate their relevance.Finally, a modality using circular incident polarizations to measure circular dichroism signals (CD-SHG) is exposed. First, we present the rigorous experimental implementation of this modality, by identifying and correcting typical artifacts of this technique. Secondly, we propose a new theoretical approach to describe CD-SHG signals. Numerical simulations of the obtained analytical expression are compared to experimental results in order to understand the evolution of CD-SHG signals with the 3D architecture of collagen
Mohanakrishna, R. "Hyperspectral and Spectropolarimetric Instrumentation for the Solar Atmosphere". Thesis, 2018. https://etd.iisc.ac.in/handle/2005/5408.
Texto completoCapítulos de libros sobre el tema "Corona polarization"
Badalyan, O. G., V. N. Obridko y J. Sýkora. "Relationship between the Green-Line Corona Polarization and Coronal Magnetic Fields". En Solar Polarization, 373–82. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-015-9329-8_32.
Texto completoGnedin, Y. N. y E. D. Lopez. "Magnetic Polarimetric Refraction in the Solar Corona". En Solar Polarization, 97–102. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0231-2_8.
Texto completodos Santos Prezas, Pedro Rafael, Manuel Jorge de Araújo Pereira Soares, Mauro Miguel Costa y Manuel Pedro Fernandes Graça. "The Corona Triode Charging/Polarization System". En NATO Science for Peace and Security Series B: Physics and Biophysics, 45–58. Dordrecht: Springer Netherlands, 2020. http://dx.doi.org/10.1007/978-94-024-2018-0_3.
Texto completoMarat-Mendes, J. N., Maria Raposo y Paulo-António Ribeiro. "Corona Polarization Effects on Polymer Surfaces". En Equilibrium Structure and Properties of Surfaces and Interfaces, 353–59. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3394-8_21.
Texto completoBadalyan, O. G., M. A. Livshits y J. Sykora. "Results of Polarization Observations of the White-Light Corona". En Theoretical and Observational Problems Related to Solar Eclipses, 11–14. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5492-5_3.
Texto completoFang, Y., P. L. Lamy y A. Llebaria. "Synthetic Maps of the Brightness and Polarization of the F-Corona". En Origin and Evolution of Interplanetary Dust, 195–98. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3640-2_40.
Texto completoBelenko, I. A., O. I. Bougaenko, I. S. Kim, S. Koutchmy, O. T. Matsuura y E. Picazzio. "Degree Polarization Distribution in the Solar Corona of 03 November 1994". En Theoretical and Observational Problems Related to Solar Eclipses, 15–19. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5492-5_4.
Texto completoHorváth, Gábor y Dezső Varjú. "Polarization of the Sky and the Solar Corona During Total Solar Eclipses". En Polarized Light in Animal Vision, 74–87. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09387-0_11.
Texto completoWardana, Rebecca, Beate Klösch y Markus Hadler. "Umwelt in der Krise. Einstellungen zu Klimawandel und Umweltbesorgnis sowie Bereitschaft zu umweltbewusstem Verhalten in Krisenzeiten". En Die österreichische Gesellschaft während der Corona-Pandemie, 241–67. Wiesbaden: Springer Fachmedien Wiesbaden, 2022. http://dx.doi.org/10.1007/978-3-658-34491-7_9.
Texto completoCugnon, P. y J. R. Gabryl. "The Solar Corona: White Light Polarization and Modelling of the Large Scale Electron Density Distribution". En Advances in Solar Research at Eclipses from Ground and from Space, 49–66. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4325-7_4.
Texto completoActas de conferencias sobre el tema "Corona polarization"
Smartt, Raymond N. y Domenico Bonaccini. "Fabry-Perot etalons for solar corona spectral measurements". En OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1987. http://dx.doi.org/10.1364/oam.1987.mv4.
Texto completoZhang, J. W., Y. C. Cui, C. Putson, R. T. Liu y C. L. Liu. "Surface charge accumulation effect of polyimide after temperature controlling corona polarization". En 2016 IEEE International Conference on Dielectrics (ICD). IEEE, 2016. http://dx.doi.org/10.1109/icd.2016.7547821.
Texto completoGasperini, Leonardo, Giacomo Selleri, Davide Pegoraro y Davide Fabiani. "Corona poling for polarization of nanofibrous mats: advantages and open issues". En 2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP). IEEE, 2022. http://dx.doi.org/10.1109/ceidp55452.2022.9985267.
Texto completoShaw, Joseph A. y Nathan J. Pust. "Dual-polarization lidar identification of ice in a corona-producing wave cloud". En SPIE Optical Engineering + Applications. SPIE, 2011. http://dx.doi.org/10.1117/12.894893.
Texto completoBonaccini, D. y Raymond N. Smartt. "Tunable Fabry-Perot interferometer using liquid crystals". En OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.mx6.
Texto completoSassen, Kenneth. "In Situ and Remote Sensing Analysis of a Corona-Producing Cirrus Cloud". En Light and Color in the Open Air. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/lcoa.1997.lwb.2.
Texto completoFiorini, Céline, Fabrice Charra, Jean-Michel Nunzi y Joseph Zyss. "Permanent all-optical poling of octupolar molecules". En The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/cleo_europe.1994.cmk2.
Texto completoShieh, Jay, Szu-Wei Chen y Chia-Yu Fang. "Photocurrent Response of Composite Perovskite Oxide Thin Films With Specific Semiconducting and Ferroelectric Properties". En ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/smasis2013-3058.
Texto completoHayden, L. M., G. F. Sauter, C. S. L. Chun y P. Pasillas. "Electric field sensors using nonlinear optical polymers". En OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.mw2.
Texto completoKhin, Maung H., Shuichi Kawabata, Kazuo Ishikawa, Toyohiko Hatada y Hitoshi Ohzu. "Polarization effect of the in-vivo cornea". En International Symposium on Polarization Analysis and Applications to Device Technology, editado por Toru Yoshizawa y Hideshi Yokota. SPIE, 1996. http://dx.doi.org/10.1117/12.246243.
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