21 Result(s)

Article

ELVES Measurements in the “UV Atmosphere” (Mini-EUSO) Experiment Onboard the ISS and Their Reconstruction

More than three dozen submillisecond events of ELVES type (“elves”), which are the result of the interaction of the front of an electromagnetic pulse from a lightning discharge and the lower layer of the ionos...

S. Sharakin, D. Barghini, M. Battisti, A. Belov, M. Bertaina… in Cosmic Research (2024)

Article

Integration, qualification, and launch of the Mini-EUSO telescope on board the ISS

Mini-EUSO is a high-sensitivity imaging telescope that observes the Earth from the ISS in the near ultraviolet band (290 \(\div\) ...

L. Marcelli, D. Barghini, M. Battisti… in Rendiconti Lincei. Scienze Fisiche e Natur… (2023)

Article

BaTiO₃ formation by thermal decomposition of a (BaTi)-citrate polyester resin in air

Barium titanate nanosized powders were prepared by a slightly modified Pechini method. The obtained polymerized resin was used as the precursor for BaTiO₃ powder production. DTA TG thermal analysis indicated that...

P. Durán, F. Capel, J. Tartaj, C. Moure in Journal of Materials Research (2001)

Article

Titanium local environment and electrical conductivity of TiO2-doped stabilized tetragonal zirconia

Solid state reactions in the ZrO₂-Y₂O₃-TiO₂system have been studied and the solid solubility limit of TiO₂ in yttria stabilized tetragonal zirconia Y-TZP has been stablished. Structural characterization was carri...

F. Capel, C. Moure, P. Durán, A. R. González-Elipe… in Journal of Materials Science (2000)

Article

Structure and electrical behavior in air of TiO2-doped stabilized tetragonal zirconia ceramics

-doped YTZP ([%mol]3 Y₂O₃) compositions sintered in the temperature range of 1300 to 1450 °C, the tetragonal zirconia solid solutions field for the ZrO₂-Y₂O₃-TiO₂ system was established. The solubility of TiO₂ in...

F. Capel, C. Moure, P. Durán, A.R. González-Elipe, A. Caballero in Applied Physics A (1999)

Article

Nanostructured and near defect-free ceramics by low-temperature pressureless sintering of nanosized Y-TZP powders

Nanosized (∼6 nm) Y-TZP (3 mol% Y₂O₃) powders have been produced by chemical co-precipitation (Y-inorganic + Zr-organic precursors) and thorough isopropanol-washing step, after calcining in air at 450 °C. The nan...

P DURAN, M VILLEGAS, F CAPEL, J. F FERNANDEZ, C MOURE in Journal of Materials Science (1997)

Article

Improvement of thermal stability and fracture toughness of Ti-TZP ceramics by small ceria additions

F. Capel, C. Moure, P. Durán in Journal of Materials Science Letters (1996)

Chapter and Conference Paper

Significance and relevance of serum preS1 antigen detection in wild-type and variant hepatitis B virus (HBV) infections

These studies assessed whether the serum expression of preS1 antigen could be a useful HBV marker for monitoring the progress of antiviral therapy in the treatment of chronic active hepatitis B (CAH-B) virus i...

Dr. Marie-Anne Petit, F. Capel, G. Gerken… in Research in Chronic Viral Hepatitis (1993)

Chapter and Conference Paper

PreS antigen expression and anti-preS response in hepatitis B virus infections: relationship to serum HBV-DNA, intrahepatic HBcAg, liver damage and specific T-cell response

The diagnostic value of preS antigens and anti-preS antibodies during Hepatitis B virus (HBV) infections have not yet been clearly elucidated. Therefore, the objectives of this study were: 1) to better under¬s...

Dr. Marie-Anne Petit, F. Capel, F. Zoulim… in Chronically Evolving Viral Hepatitis (1992)

Article

Large electromechanical anisotropic modified lead titanate ceramics

Dielectric, piezoelectric and mechanical properties of Pb_0.88Ln_0.88(Ti_0.02Mn_0.98)O₃ and Pb_0.76Ca_0.24 ((Co_0.5W_0.5)_0.04Ti_0.96)O₃ ceramics as a function of the tetragonality (c/a) have been investigated. The influen...

P. Duran, J. F. Fdez Lozano, F. Capel, C. Moure in Journal of Materials Science (1989)

Article

Y(E)-doped tetragonal zirconia polycrystalline solid electrolyte

Polycrystalline dense zirconia containing 100% metastable tetragonal phase was obtained by alloying zirconia with 2 to 3 mol % Y₂O₃ (Er₂O₃). A critical temperature, approximately 1400°C, for full densification (1...

P. Durán, P. Recio, J. R. Jurado, C. Pascual, F. Capel… in Journal of Materials Science (1989)

Article

Large electromechanical anisotropic modified lead titanate ceramics

Modified lead titanate (PT) oxalates were prepared by mixing an ethanol solution with (calcium, lanthanum, neodymium, samarium or gadolinium) and titanium with an ethanol solution of oxalic acid containing lea...

P. Duran, J. F. Fdez Lozano, F. Capel, C. Moure in Journal of Materials Science (1988)

Article

Microhardness and toughness of Na₂O-B₂O₃-SiO₂ materials prepared by the sol-gel procedure

M. A. Villegas, F. Capel, J. M. Fernández Navarro in Journal of Materials Science Letters (1988)