Zobrazeno 1 - 10
of 435
pro vyhledávání: '"C Tewari"'
Publikováno v:
APL Materials, Vol 10, Iss 9, Pp 091104-091104-8 (2022)
We demonstrate a p-type to n-type conductivity transition for thermoelectric CoSbS achieved by precisely controlling the sulfur vapor pressure during the sample synthesis. The p–n transition is experimentally confirmed by both the Seebeck coefficie
Externí odkaz:
https://doaj.org/article/395a704857584178a2715138685955d8
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 1, Pp 1-11 (2021)
Abstract In this article, we study the shear-free gravitational collapse of a charged radiating star. The Einstein field equations of gravitational collapse for the charged stars are known to give rise to a high degree of non-linearity in the ordinar
Externí odkaz:
https://doaj.org/article/e535d1fdaa1741d1a063be984dc4ebb0
We present a new parametric class of spherically symmetric analytic solutions of the general relativistic field equations in canonical coordinates, which corresponds to causal models of perfect fluid balls. These solutions describe perfect fluid ball
Externí odkaz:
http://arxiv.org/abs/1006.1613
Autor:
Ali Saffar Shamshirgar, Manuel Belmonte, Girish C. Tewari, Rocío E. Rojas Hernández, Jani Seitsonen, Roman Ivanov, Maarit Karppinen, Pilar Miranzo, Irina Hussainova
Publikováno v:
Materials, Vol 14, Iss 9, p 2242 (2021)
The remarkable tunability of 2D carbon structures combined with their non-toxicity renders them interesting candidates for thermoelectric applications. Despite some limitations related to their high thermal conductivity and low Seebeck coefficients,
Externí odkaz:
https://doaj.org/article/ec9d953a0a3f4240881cbd609d5e25da
Akademický článek
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Akademický článek
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Publikováno v:
Journal of Oleo Science. 71:481-491
Autor:
Cristina Ramírez, Ali Saffar Shamshirgar, Domingo Pérez-Coll, María Isabel Osendi, Pilar Miranzo, Girish C. Tewari, Maarit Karppinen, Irina Hussainova, Manuel Belmonte
[EN] 3D printing technologies have expanded the possibilities of fabricating new composite materials with tailored properties, which depend on both the materials selected and the structural design at multiple length scales. Here, a catalyst-free CVD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8073b9b9caea8cfd90de429f2147ddda
http://hdl.handle.net/10261/289230
http://hdl.handle.net/10261/289230
Publikováno v:
Russian Journal of Earth Sciences. 21:1-9
Autor:
Ali Saffar Shamshirgar, José F. Fernández, Maarit Karppinen, Girish C. Tewari, Roman Ivanov, Irina Hussainova, Rocio Estefania Rojas Hernandez
Publikováno v:
ACS Applied Materials & Interfaces. 13:21613-21625
Graphene is currently attracting attention for radiation absorption particularly at gigahertz and terahertz frequencies. In this work, composites formed by graphene-augmented γ-Al2O3 nanofibers embedded into the α-Al2O3 matrix are tested for X-band