Zobrazeno 1 - 10
of 5 770
pro vyhledávání: '"Alexandre, S"'
Autor:
Rodrigues, Naruna E., Alcarás, José Renato, Bruno, Odemir M., Nakamura, Gilberto, Martinez, Alexandre S.
In fields such as acoustics, electromagnetism, and quantum physics, the scattering of waves by localized objects is a fundamental phenomenon. Building on this, the present study investigates the energy distribution within a spherical scattering cente
Externí odkaz:
http://arxiv.org/abs/2410.00666
Autor:
Lima, Isabel J., Luna, G. Juan M., Mukai, Koji, Oliveira, Alexandre S., Sokoloski, Jennifer L., Walter, Fred, Palivanas, Natalia, Nuñez, Natalia E., Souza, Rafael R., Araujo, Rosana A. N.
White dwarf symbiotic binaries are detected in X-rays with luminosities in the range of 10$^{30}$ to 10$^{34}$ lumcgs. Their X-ray emission arises either from the accretion disk boundary layer, from a region where the winds from both components colli
Externí odkaz:
http://arxiv.org/abs/2405.01508
This paper deals with the design of Excitation and Measurement Patterns (EMPs) for the identification of dynamical networks, when the objective is to identify only a subnetwork embedded in a larger network. Recent results have shown how to construct
Externí odkaz:
http://arxiv.org/abs/2402.14144
Investigation of the Nonlinear Optical Frequency Conversion in Ultrathin Franckeite Heterostructures
Autor:
Cadore, Alisson R., Ore, Alexandre S. M. V., Steinberg, David, Zapata, Juan D., de Souza, Eunézio A. T., Bahamon, Dario A., de Matos, Christiano J. S.
Layered franckeite is a natural superlattice composed of two alternating layers of different compositions, SnS$_2$- and PbS-like. This creates incommensurability between the two species along the planes of the layers, resulting in spontaneous symmetr
Externí odkaz:
http://arxiv.org/abs/2402.03884
Autor:
Göttel, Alexandre S., Ejlli, Aldo, Karan, Kanioar, Vermeulen, Sander M., Aiello, Lorenzo, Raymond, Vivien, Grote, Hartmut
We report on a direct search for scalar field dark matter using data from LIGO's third observing run. We analyse the coupling of size oscillations of the interferometer's beamsplitter and arm test masses that may be caused by scalar field dark matter
Externí odkaz:
http://arxiv.org/abs/2401.18076
Autor:
Lima, Isabel J., Mattiuci, Ana C., Luna, G. Juan M., Oliveira, Alexandre S., Rodrigues, Claudia V., Palivanas, Natalia, Nunez, Natalia E.
We present an analysis of publicly available X-ray and optical observations of TYC 7275-1968-1, a contact binary, red nova progenitor candidate. The long optical time series of ASAS-SN, SuperWASP, CRTS, GAIA, ASAS-3, and TESS enabled us to improve it
Externí odkaz:
http://arxiv.org/abs/2310.19712
Autor:
Owais Ali Wani, Syed Sheraz Mahdi, Md. Yeasin, Shamal Shasang Kumar, Alexandre S. Gagnon, Faizan Danish, Nadhir Al-Ansari, Salah El‑Hendawy, Mohamed A. Mattar
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-18 (2024)
Abstract Predicting rainfall is a challenging and critical task due to its significant impact on society. Timely and accurate predictions are essential for minimizing human and financial losses. The dependence of approximately 60% of agricultural lan
Externí odkaz:
https://doaj.org/article/4ccd2c8d31ad48f1b0b71b1e87c62c04
The new observational data concerning distribution, excitation, and kinematics of the ionized gas in the giant early-type disk galaxy NGC 2655 obtained at the 6m telescope of the Special Astrophysical Observatory (SAO RAS) and at the 2.5m telescope o
Externí odkaz:
http://arxiv.org/abs/2301.05326