Results 31 to 40 of about 264,121 (351)

Domínios magnéticos em hexaferrita de bário magnetizada progressivamente Magnetic domains in barium hexaferrite magnetized progressively

Cerâmica, 2005
As hexaferritas de bário são óxidos ferrimagnéticos hexagonais que atraem grandes interesses científicos, tecnológicos e industriais como uso de magneto permanente. A hexaferrita de bário usada neste trabalho foi preparada usando um processo de moagem de
S. M. Gheno, R. R. Corrêa, P. I. Paulin Filho   +2 more
doaj   +1 more source

NO_x Reduction Pathways during LNT Operation over Ceria Containing Catalysts: Effect of Copper Presence and Barium Content

Applied Sciences, 2021
Ceria-based catalysts, with Cu in substitution of noble metals, were studied in a vertical microreactor system under isothermal conditions, where NOx was previously stored, followed by the reduction step conducted under H2.
Juan Carlos Martínez-Munuera, Javier A. Giménez-Mañogil, Roberto Matarrese, Lidia Castoldi, Avelina García-García   +4 more
doaj   +1 more source

Possible discovery of the r-process characteristics in the abundances of metal-rich barium stars

, 2014
We study the abundance distributions of a sample of metal-rich barium stars provided by Pereira et al. (2011) to investigate the s- and r-process nucleosynthesis in the metal-rich environment. We compared the theoretical results predicted by a parametric
Cui, W. Y., Niu, P., Shi, J. R., Wang, W. J., Zhang, B., Zhao, G.   +5 more
core   +1 more source

Chemical peculiarities of the Silurian–Ordovician and Cambrian–Vendian aquifer systems in Estonia: an overview of hydrochemical studies [PDF]

Estonian Journal of Earth Sciences, 2009
The chemical composition of groundwater was studied and plausible reasons for its peculiarities were evaluated on the basis of long-term groundwater monitoring data.
Karro, Enn, Marandi, Andres, Vaikmäe, Rein, Uppin, Marge   +3 more
doaj  

catena-Poly[barium(II)-μ2-(dimethyl sulfoxide)-κ2O:O-bis(μ2-2,4,6-trinitrophenolato-κ4O2,O1:O1,O6)]

IUCrData, 2020
The asymmetric unit of the title barium coordination polymer, [Ba(C6H2N3O7)2(C2H6OS)]n, consists of a barium cation (site symmetry m) and a dimethyl sulfoxide (DMSO) ligand (point group symmetry m) and a 2,4,6-trinitrophenolate anion located in general ...
Bikshandarkoil R. Srinivasan, Neha U. Parsekar, Kedar U. Narvekar   +2 more
doaj   +1 more source

Influence of barium on rectification in rat neocortical neurons [PDF]

, 1993
The effect of low concentrations of barium on the membrane properties of rat neocortical neurons was studied in vitro. Potassium currents were examined using single-electrode current- and voltage-clamp techniques. Neurons responded to bath application of
Bernd Sutor, Brown, Constanti, Constanti, Friedman, Hagiwara, Hwa, John J. Hablitz, Katz, Leech, Mayer, McCormick, North, Schwindt, Spain, Stafstrom, Stafstrom, Sutor, Sutor   +18 more
core   +1 more source

On the subject of the Ba overabundance in the open clusters stars [PDF]

, 2016
For eight distant open clusters, namely Ruprecht 4, Ruprecht 7, Berkeley 25, Berkeley 73, Berkeley 75, NGC 6192, NGC 6404, and NGC 6583, we determined the yttrium and barium abundances using the UVES, VLT spectra (ESO, Chile).
Carraro, Giovanni, Korotin, S. A., Kovtyukh, V. V., Mishenina, T. V., Yegorova, I. A.   +4 more
core   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Simulating cold atomic hydrogen production in linear radiofrequency ion traps

New Journal of Physics
We simulated the motion of ${\mathrm{BaH^{+}}}$ molecular ions which are sympathetically cooled by laser-cooled ${\mathrm{Ba^{+}}}$ ions in linear quadrupole and octupole radiofrequency (RF) ion traps.
Nikita Poljakov, Muhammed Sameed, Steven Armstrong Jones   +2 more
doaj   +1 more source