Zobrazeno 1 - 10
of 11
pro vyhledávání: '"C. S. Seibert"'
Autor:
S. C. Ferreira-Rodrigues, R. C. C. Silva, M. Trevisan, P. S. M. Rodrigues, T. H. M. Del-Rei, L. F. Sousa, A. R. G. Vilarinho, C. A. Lima, J. L. Rodrigues, M. M. R. Silva, A. M. Moura-da-Silva, S. S. Sant’Anna, C. S. Seibert
Publikováno v:
Brazilian Journal of Biology, Vol 84 (2024)
Abstract Variability in snake venom composition is well-documented and crucial for understanding snake ecology and predicting snakebites. In this study, we characterize the venom composition and biological activities of newborn female and male Bothro
Externí odkaz:
https://doaj.org/article/eda948c49707470f8e68fe25d93fd671
Publikováno v:
Brazilian Journal of Biology, Vol 82 (2022)
Abstract Sodium lauryl sulfate is the main cleaning ingredient in shampoos, even though it may be potentially damaging to hair. The demand for antioxidant-rich cosmetics, on the other hand, has encouraged green cosmetics research. Brazil has vast bio
Externí odkaz:
https://doaj.org/article/ef372e90deef43aabb49c6043bda3146
Publikováno v:
Brazilian Journal of Biology, Volume: 82, Article number: e264933, Published: 04 NOV 2022
Brazilian Journal of Biology v.82 2022
Brazilian Journal of Biology
Instituto Internacional de Ecologia (IIE)
instacron:IIE
Brazilian Journal of Biology v.82 2022
Brazilian Journal of Biology
Instituto Internacional de Ecologia (IIE)
instacron:IIE
The objective of this study was to describe the histology and histochemistry of the integument covering the back and stinger of the freshwater stingray Potamotrygon rex, endemic to the Middle Upper Tocantins River. The species has a dark back and yel
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 17:1662-1669
The matched-bends criterion, a method for effectively reducing the straight-bend-straight transition loss in planar optical waveguides, is applied to design a single-facet teardrop laser utilizing an on-chip loop mirror reflector. Simulations of a ma
Publikováno v:
IEEE Photonics Technology Letters. 22:18-20
We demonstrate the efficacy of oxidation smoothing of sidewall roughness in high-index-contrast AlGaAs heterostructure ridge waveguides via oxygen-enhanced nonselective wet thermal oxidation for reducing scattering loss. Single-mode waveguides of cor
Publikováno v:
22nd IEEE International Semiconductor Laser Conference.
A reflectance of 97% is simulated for a teardrop-shaped reflector of optimized matched bends design. A fabricated 808 nm single facet laser exhibits a threshold of 43 mA and slope efficiency of 0.465 W/A (ηd∼30%).
Publikováno v:
Conference on Lasers and Electro-Optics 2010.
A high-index-contrast single output teardrop laser fabricated via oxygen-enhanced non-selective wet oxidation is demonstrated. The device offers a low (55 mA) threshold and high (138 mW) output power from a single, uncoated output facet.
Publikováno v:
SPIE Proceedings.
In this work, a novel self-aligned process utilizing non-selective, 0 2 -enhanced wet thermal oxidation is presented for fabricating InP-based, ridge waveguide mid-infrared (λ=5.4 μm) quantum cascade lasers (QCLs) with a strain-compensated, 30-stag
Publikováno v:
SPIE Proceedings.
The use of the non-selective, O 2 -enhanced wet thermal oxidation of deep-etched sidewalls in GaAs-based heterostructures has enabled the fabrication of low-loss, high-index-contrast ridge waveguides suitable for ring resonator laser devices. In a se
Publikováno v:
2008 Conference on Lasers and Electro-Optics.
The propagation loss of single mode high index contrast AlGaAs ridge waveguides is reduced nearly three orders of magnitude (at 1 cm guide length) through application of a nonselective wet oxidation sidewall roughness smoothing technique.