Results 31 to 40 of about 13,995 (221)

A hybrid Si@FeSiy/SiOx anode structure for high performance lithium-ion batteries via ammonia-assisted one-pot synthesis [PDF]

, 2015
Synthesised via planetary ball-milling of Si and Fe powders in an ammonia (NH3) environment, a hybrid Si@FeSiy/SiOx structure shows exceptional electrochemical properties for lithium-ion battery anodes, exhibiting a high initial capacity of 1150 mA h g−1
Abel, Bang, Beaulieu, Chang, Chen, Cheng, Chirvony, Fu, Gauthier, Guo, Hu, Hu, Huang, Hwa, Jerliu, Jing, Karki, Kim, Kim, Kim, Lestriez, Li, Lim, Liu, Lotfabad, Lv, Obrovac, Ohara, Park, Patterson, Perrine, Philippe, Sim, Son, Sun, Verma, Wang, Wen, Wu, Yan, Yu, Yu, Zhou, Zhu   +43 more
core   +1 more source

Aplicación de un programa de electroestimulación para la pérdida de grasa corporal en mujeres

CuidArte, 2018
Actualmente México encabeza el listado de países con sobrepeso y obesidad en su población adulta, de modo que 7 de cada 10 adultos presentan este padecimiento, por lo que es considerado un problema de salud pública difícil de combatir a pesar de las ...
Karina Yazmín Guzmán Quintana, José Roberto Granados Carrillo   +1 more
doaj   +1 more source

Licenciatura en enfermería: de orden biológico, sociológico, ético y humanístico

CuidArte, 2023
En este tiempo he visto transitar a nuestra carrera de un nivel técnico a un nivel licenciatura con características dignas de ser reconocidas. El nivel técnico fue desarrollado con un [...]
Cecilia López López
doaj   +1 more source

Una descarga de emociones: "Vivir con epilepsia"

CuidArte, 2018
Introducción: En México, la epilepsia es la segunda enfermedad neurológica más recurrente, de acuerdo a la Organización Mundial de la Salud es una afección crónica recurrente, caracterizada por una hiperactividad sincrónica e intermitente de las células ...
Claudia Viridiana Vázquez Mata, Sandra Viridiana Ruíz López, Paloma Carapia Fierros, Juan José Cruz Vera, Dulce María Guillén Cadena   +4 more
doaj   +1 more source

Origin of Magnetism in γ-FeSi₂/Si(111) Nanostructures

Nanomaterials, 2021
Magnetism has recently been observed in nominally nonmagnetic iron disilicide in the form of epitaxial γ-FeSi2 nanostructures on Si(111) substrate. To explore the origin of the magnetism in γ-FeSi2/Si(111) nanostructures, we performed a systematic first ...
Liwei D. Geng, Sahil Dhoka, Ilan Goldfarb, Ranjit Pati, Yongmei M. Jin   +4 more
doaj   +1 more source

Thermopower of the Correlated Narrow Gap Semiconductor FeSi and Comparison to RuSi

, 2012
Iron based narrow gap semiconductors such as FeSi, FeSb2, or FeGa3 have received a lot of attention because they exhibit a large thermopower, as well as striking similarities to heavy fermion Kondo insulators.
A Bentien, A Damascelli, A Herzog, A Kokalj, A Kutepov, A Mani, B Buschinger, BC Sales, C Fu, CM Varma, D Mandrus, D Marel, D Menzel, G Kotliar, GD Mahan, H Hohl, H Schweitzer, Haule K, Kotliar G (2009) Thermoelectrics near the Mott localization–delocalization transition. In: Properties and applications of thermoelectric materials, Proceedings of the NATO advanced research workshop on properties and application of thermoelectric materials, Hvar, Croatia, 21–26 Sept, J Kunes, J Kuneš, J Mravlje, JM Tomczak, JM Tomczak, JM Tomczak, K Haule, K Haule, K Haule, K-Y Yang, L Degiorgi, LF Mattheiss, M Arita, M Klein, O Delaire, P Blaha, P Sun, P Sun, P Werner, PM Raccah, R Wolfe, S Paschen, S Takagi, T Jarlborg, T Saso, V Jaccarino, V Shaposhnikov, V Vescoli, VI Anisimov, VS Oudovenko, VS Oudovenko, VV Mazurenko, Y Hadano, Y Imai, Y Takahashi, YN Zhao, Z Fisk, Z Schlesinger, ZP Yin   +56 more
core   +1 more source

Electronic structure and magnetism for FeSi$_{(1-x)}$Ge$_x$ from supercell calculations

, 2004
Recent studies of FeSi$_{(1-x)}$Ge$_x$, which found a transition from an insulating to a magnetic metallic state near $x$=0.25, have revived the discussion about the role of strong correlation in these systems.
Jarlborg, T.
core   +2 more sources

Fe-Si Intermetallics/Al₂O₃ Composites Formed between Fe-20% Si and Fe-70.5% Si by SHS Metallurgy Method

Metals, 2022
Fe–Si intermetallics–Al2O3 composites were fabricated by thermite-assisted combustion synthesis. Combustion reactions were conducted with powder compacts composed of Fe2O3, Al, Fe, and Si. The starting stoichiometry of powder mixtures had an atomic Fe/Si
Chun-Liang Yeh, Ann Lu, Wei-Che Liang
doaj   +1 more source

Unconventional charge gap formation in FeSi

Physical Review Letters, 1993
We report the first infrared and optical measurements of the absolute conductivity of FeSi. Above 200 K the ac conductivity of FeSi resembles that of a dirty metal, while at low temperature most of the conductivity below 60 meV is depleted, consistent with an energy gap of that magnitude.
Schlesinger, Z, Fisk, Z, Zhang, Hai-Tao, Maple, MB, DiTusa, J, Aeppli, G   +5 more
openaire   +5 more sources

Thermoelectric properties of ${\beta}$-FeSi$_{\text2}$

, 2013
We investigate the thermoelectric properties of ${\beta}$-FeSi$_{\text2}$ using first principles electronic structure and Boltzmann transport calculations.
Pandey, Tribhuwan, Parker, David, Singh, Abhishek K., Singh, David J.   +3 more
core   +1 more source