Publications by authors named "R B Panek"
Dielectric, Electric, and Pyroelectric Properties of BaCaTiO Ceramics.
Materials (Basel)
December 2024
In this study, we investigate the dielectric, electric, and pyroelectric properties of BaCaTiO (BCT) ceramics with compositions of = 0.2, 0.25, and 0.
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- Global development has increased hazardous contaminants like pesticides, necessitating effective removal methods for environmental safety.
- This study focused on modifying natural zeolite and fly ash-based zeolites with CTAB to create cost-effective adsorbents for removing the herbicide 2,4-D from water.
- Characterization revealed significant changes in these materials, and adsorption showed that the process was spontaneous and followed specific kinetics, with optimal sorption capacities in samples with 0.05 mol L CTAB.
Article Synopsis
- BaCaTiO ceramics were synthesized using a straightforward solid-state reaction, focusing on how different sintering temperatures affect their structure and properties.
- XRD analysis showed that a dominant tetragonal phase forms at sintering temperatures of 1400 °C and 1450 °C, with those temperatures producing single-phase materials, while other temperatures resulted in some orthorhombic phase presence.
- Higher sintering temperatures improved grain size and boundary formation, resulting in increased electric permittivity up to 1400 °C, but a drop at 1450 °C, while also affecting the material's phase transition characteristics and thermal properties.
: One of the main strategies to control neonatal porcine diarrhoea (NPD) is through vaccination of the sows. This study aimed to compare the efficacy of two commercial vaccination schemes under field conditions on a farm where a type A -positive strain was implicated in NPD. : This study was performed in a farrow-to-wean herd with 5500 sows, already using an and vaccine but still suffering NPD.
View Article and Find Full Text PDFPurpose: There are many approaches to the quantitative BOLD (qBOLD) technique described in the literature, differing in pulse sequences, MRI parameters and data processing. Thus, in this review, we summarized the acquisition methods, approaches used for oxygenation quantification and clinical populations investigated.
Methods: Three databases were systematically searched (Medline, Embase, and Web of Science) for published research that used qBOLD methods for quantification of oxygen metabolism.