Optical Images
Mostrando 1-12 de 237 artigos, teses e dissertações.
-
1. Validation of a classification and scoring system for the diagnosis of laryngeal and pharyngeal squamous cell carcinomas by confocal laser endomicroscopy
Abstract Introduction: Confocal laser endomicroscopy is an optical imaging technique that allows in vivo, real-time, microscope-like images of the upper aerodigestive tract’s mucosa. The assessment of morphological tissue characteristics for the correct differentiation between healthy and malignant suspected mucosa requires strict evaluation criteria. Ob
Brazilian Journal of Otorhinolaryngology. Publicado em: 2022
-
2. Synthesis and characterization of α-SnWO4 powders obtained by microwave-assisted hydrothermal method
Abstract The structural, morphological, and optical properties of α-SnWO4 synthesized by microwave-assisted hydrothermal method at 150 °C for different times were investigated. XRD revealed the formation of the orthorhombic phase, without the presence of a secondary phase. The sample processed for 64 min showed a reduction in unit cell volume, suggesting a
Cerâmica. Publicado em: 2022
-
3. Study of structural, optical, and morphological characteristics of manganese titanate (MnTiO3) obtained by combustion reaction using microwave energy
Abstract MnTiO3 is a semiconductor that has relevant dielectric and optical properties. For the synthesis of manganese titanate (MnTiO3) powders, the combustion method via microwave and subsequent calcination at 500, 700, and 900 °C were used. The structural, morphological, and optical properties of the samples were investigated. X-ray diffraction analyzes
Cerâmica. Publicado em: 2021-03
-
4. Synthesis, Characterization and Exchange Reactions of Layered Double Hydroxides of Copper and Aluminum, Intercalated with Sulfate
Layered double hydroxides (LDHs) of Cu:Al in the molar ratio of 2:1, intercalated with sulfate, sulfate/(Li+, Na+, K+ or NH4+), NO3- and CO32-, were synthesized by co-precipitation with increasing pH. The materials were submitted to exchange reactions using B2SO4 (B = Li+, Na+, K+, NH4+) solutions in an attempt to replace previously intercalated cations or i
J. Braz. Chem. Soc.. Publicado em: 2021-01
-
5. Effects of two different contact lenses on ocular physiological parameters and tear function tests
Resumo Objetivo: Investigar os efeitos de dois tipos de lentes de contacto feitas de dois tipos diferentes de material de hidrogel de silicone nos parâmetros fisiológicos oculares e testes de função lacrimal. Métodos: As lentes de contacto com as dioptrias apropriadas foram fornecidas aos pacientes voluntários. Os pacientes foram avaliados antes do u
Rev. bras.oftalmol.. Publicado em: 02/12/2019
-
6. Avaliação através da tomografia por coerência óptica do esmalte dentário após o uso de dentifrícios clareadores
Resumo Introdução Historicamente, materiais abrasivos, como mármore em pó, corais e cinzas ósseas, eram utilizados para higienização dentária. Com a evolução, tais materiais foram substituídos por dentifrícios aplicados em escovas dentais, com a mesma finalidade. Objetivo Avaliar, através da Tomografia por Coerência Óptica, o desgaste do esm
Rev. odontol. UNESP. Publicado em: 07/11/2019
-
7. Uso de retinógrafo portátil como ferramenta no rastreamento de retinopatia diabética
Resumo Objetivo: Determinar a concordância do retinógrafo portátil Pictor Plus, na ausência de midríase, com a retinografia digital e avaliar a sua acurácia como método de rastreio da retinopatia diabética (RD). Métodos: Estudo transversal, mascarado para o observador, avaliando 100 olhos de 51 pacientes diabéticos. Foram realizadas retinografia
Rev. bras.oftalmol.. Publicado em: 04/11/2019
-
8. Glaucoma de ângulo fechado devido a síndrome de íris em platô
Resumo Objetivo: Descrever um caso de glaucoma de ângulo fechado devido a síndrome de íris em platô. Descrição do caso: Paciente do sexo feminino, de 50 anos de idade, que há 13 meses foi tratada de fechamento angular primário a esquerda com sucesso com iridotomia periféria com Nd:YAG laser, compareceu ao serviço com queixa de embaçamento visual
Rev. bras.oftalmol.. Publicado em: 04/11/2019
-
9. Unilateral intravitreal dexamethasone implant for diabetic macular edema: effect in the contralateral eye
RESUMO Descrevemos três pacientes que tiveram doenças cardíacas prévias e retinopatia diabética não proliferativa com edema macular diabético clinicamente significativo. Eles foram submetidos a implante intravítreo de dexametasona unilateral. Sem tratamento oftalmológico no olho contralateral, os pacien tes apresentaram uma melhora bilateral signifi
Arq. Bras. Oftalmol.. Publicado em: 31/10/2019
-
10. Influence of Carnauba Wax on Films of Poly (Butylene Adipate Co-Terephthalate) and Sugarcane Residue for Application in Soil Cover (Mulching)
The population increase, urbanization and climatic change adversely affect the agricultural production have prompted actions to improve the means of production without affecting the environment. One of the actions to make the production of food more efficient and sustainable is the use of plastics in protection of crops, soils and packaging, for example. The
Mat. Res.. Publicado em: 21/10/2019
-
11. A NOVEL MODEL FOR ORIENTATION OF LINEAR OPTICAL SATELLITE IMAGES BASED IN THE ADAPTATION OF THE ORBIT-ATTITUDE MODEL
Abstract In this paper a novel model to orient a pushbroom linear optical satellite image is proposed. This one is based in the adaptation of the Orbit-Attitude model for use of the Modified UCL Kepler platform model. It has only the components of satellite position and velocity as unknowns. This implies not only the reduction of unknowns but also the elimin
Bol. Ciênc. Geod.. Publicado em: 14/10/2019
-
12. Remineralizing Potential of Nano-Silver-Fluoride for Tooth Enamel: An Optical Coherence Tomography Analysis
Abstract Objective: To evaluate the use of nanosilver fluoride in the enamel remineralization process through optical coherence tomography. Material and Methods: All samples were submitted to demineralization process by pH cycling during 14 days and randomly distributed into three groups (n = 11): Nanosilver Fluoride (NSF), Sodium fluoride (NaF), and negat
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 10/10/2019