User profiles for "author:B. Aspe"

Barthélemy Aspe

Associate professor, Université d'Orléans
Verified email at univ-orleans.fr
Cited by 44

Frequency-tunable slot-loop antenna based on KNN ferroelectric interdigitated varactors

B Aspe, X Castel, V Demange… - IEEE Antennas and …, 2021 - ieeexplore.ieee.org
A miniature frequency-tunable slot-loop antenna (0.128 λ 0× 0.077 λ 0) based on
ferroelectric K 0.5 Na 0.5 NbO 3 (KNN) interdigitated varactors is investigated at Ku-band …

Enhanced tunability and temperature-dependent dielectric characteristics at microwaves of K0. 5Na0. 5NbO3 thin films epitaxially grown on (100) MgO substrates

B Aspe, X Castel, V Demange, D Passerieux… - Journal of Alloys and …, 2021 - Elsevier
Abstract K 0.5 Na 0.5 NbO 3 thin films were deposited by pulsed laser deposition on (100)
MgO substrates for microwave device applications. A fine epitaxial growth of pure perovskite …

Erythema nodosum: a study of 160 cases

A Atanes, N Gomez, B Aspe, J De Toro, J Grana… - Medicina …, 1991 - europepmc.org
We have evaluated 160 patients diagnosed of erythema nodosum (EN) on the basis of
clinical and/or histopathological criteria to assess their etiology and their major …

[HTML][HTML] Chemical vapor deposition of CoFe2O4 micropillar arrays with enhanced magnetic properties

B Aspe, A Malyeyev, A Vakilinejad, K Menguelti… - Journal of Alloys and …, 2022 - Elsevier
Single-step thermal chemical vapor deposition was optimized at 400° C for the growth of
CoFe 2 O 4 spinel thin films starting from the corresponding metal acetylacetonate …

Tetragonal tungsten bronze phase thin films in the K–Na–Nb–O system: Pulsed laser deposition, structural and dielectric characterizations

B Aspe, V Demange, A Waroquet, X Castel… - Journal of Alloys and …, 2020 - Elsevier
Pulsed laser deposition parameters have been determined to synthesize pure Tetragonal
Tungsten Bronze (TTB) phase thin films in the (K, Na)–Nb–O system (KNN). In relation to the …

Nanostructured Oxide (SnO2, FTO) Thin Films for Energy Harvesting: A Significant Increase in Thermoelectric Power at Low Temperature

…, A Capelle, S Nar, W Karim, A Stolz, B Aspe… - Micromachines, 2024 - mdpi.com
Previous studies have shown that undoped and doped SnO2 thin films have better optical
and electrical properties. This study aims to investigate the thermoelectric properties of two …

[HTML][HTML] CD26 expression on T helper populations and sCD26 serum levels in patients with rheumatoid arthritis

…, M Rodríguez-López, B Aspe de la Iglesia… - Plos one, 2015 - journals.plos.org
We studied dipeptidyl peptidase IV (DPP-IV, CD26) expression in different T helper cells and
serum soluble DPP-IV/sCD26 levels in rheumatoid arthritis (RA) patients, correlated these …

K x Na1−xNbO3 perovskite thin films grown by pulsed laser deposition on R-plane sapphire for tunable microwave devices

B Aspe, F Cissé, X Castel, V Demange… - Journal of materials …, 2018 - Springer
K x Na 1− x NbO 3 thin films with x= 0.5 and x= 0.7 were deposited by pulsed laser
deposition onto R-cut sapphire substrates to be suitable for microwave applications. The …

FRI0158 clinical evaluation usefulness of standardized protocol strategies of dose reduction in patients with rheumatoid arthritis in clinical remission treated with …

…, JA Pinto-Tasende, A Atanes, B Aspe… - 2016 - ard.bmj.com
Objectives The OPTIBIO study is a clinical trial whose primary endpoint is to evaluate the
proportion of patients that after one year are maintained in clinical remission with a dose …

Study of CO2 Laser-induced Thermal Stress Mechanisms on Decorative Soda-lime Glass

A Capelle, B Aspe, O Shavdina, B Diallo… - Journal of Laser Micro …, 2023 - hal.science
In this study, we examine texturing features on soda-lime (SDL) silicate glass bottles
achieved using a Carbon Dioxide (CO2) laser with continuous wave power (25 W at 10.6 …