Micron
Mostrando 1-12 de 724 artigos, teses e dissertações.
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1. Thermal, structural and optical properties of magnetic BiFeO3 micron-particles synthesized by coprecipitation method: heterogeneous photocatalysis study under white LED irradiation
Abstract Bismuth ferrite, BiFeO3 (BFO) prepared via a coprecipitation method, was used as an effective photocatalyst for the degradation of methylene blue (MB) using a white light-emitting diode (LED-50 W) lamp. The as-prepared material was characterized by TGA, XRD, SEM-EDX, FTIR, and UV-vis-DRS techniques. The effects of experimental key parameters such as
Cerâmica. Publicado em: 2022
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2. Capillaroscopic appearance of nailfold vasculature of diabetic nephropathy patients
ABSTRACT Objectives: Diabetic nephropathy is a microvascular complication of diabetes and the most common cause of end-stage renal failure throughout the world. Videocapillaroscopy is a simple and noninvasive method that can display capillaries in the nail bed at the micron level. A few studies have been conducted on detecting retinopathy, another important
Archives of Endocrinology and Metabolism. Publicado em: 2022
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3. Evaluation of polyelectrolyte and emulsion covalent crosslink of chitosan for producing mesalasine loaded submicron particles
This study evaluates various techniques for producing mesalamine (5ASA)-loaded particles employing chitosan as a biopolymer: (1) the polyelectrolyte complexation of chitosan with phthalate hypromelose (HP), (2) the chemical crosslinking of chitosan with genipin and (3) the water-in-oil emulsion method associated with chemical crosslinking with genipin. Syste
Braz. J. Pharm. Sci.. Publicado em: 20/12/2019
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4. Iatrogenic foreign body in urinary bladder: Holmium laser vs. Ceramic, and the winner is…
ABSTRACT Introduction Urological surgery is estimated to be the third most common cause of iatrogenic-retained foreign bodies 1. Presentation A 76-year old man was undergoing a transurethral resection of bladder tumor with a 26-Ch continuous flow resectoscope (Karl Storz, Germany). Before starting resection, a detachment of resectoscope sheath tip was not
Int. braz j urol.. Publicado em: 02/09/2019
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5. Temperatura e substrato na germinação de sementes de Plukenetia volubilis L.
RESUMO Objetivou-se, neste trabalho, avaliar o efeito de temperaturas e substratos na germinação de sementes de P. volubilis. Sementes colhidas em 25 plantas matrizes foram avaliadas em dois estudos: (i) semeadura em rolo de papel nas temperaturas 10, 15, 20, 25, 30, 35, 40 e 45 ºC, avaliando-se a germinação, primeira contagem, índice de velocidade de
Rev. bras. eng. agríc. ambient.. Publicado em: 2016-11
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6. Fabrication and High Temperature Friction Behavior and Oxidation Resistance of Ni-Co-ZrO2 Composite Coating
Ni-Co alloy and ZrO2 micron particles were codeposited on 45 carbon steel by electrodeposition. The composition and microstructure of the composite coating were characterized. The high temperature tribological properties were carried out by a pin-on-disk tribo-tester. Additionally, the oxidation resistance was evaluated via high temperature circulating oxida
Mat. Res.. Publicado em: 05/04/2016
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7. COMPARATIVE STUDY OF MICROANASTOMOSIS WITH DISTINCT 10-0 NYLON SUTURES IN RATS
ABSTRACT Objective: The aim of this study is to compare micro-sutures commonly used in our midst. Methods: In this double-blind study, 30 Wistar rats were operated randomly divided into three groups matched according to the suture used (Nylon 10-0, 75micron, brands Microsuture(r), Polysuture(r) and Ethicon(r)). We analyzed the number of surgical nodes re
Acta ortop. bras.. Publicado em: 2016-02
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8. Superelasticity in Polycrystalline Ni-Mn-Ga-Fe Microwires Fabricated by Melt-extraction
Ni48Mn26.4Ga19.7Fe5.9 microwires with grain size of 1-3 micron were successfully fabricated by melt-extraction. The superelastic effects in the microwires under various temperatures and loads were systematically demonstrated. The as-extracted microwires displayed partial superelasticity when attended at relatively high temperature. The critical stress for st
Mat. Res.. Publicado em: 23/10/2015
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9. Cooperação universidade-empresa: um estudo do projeto UNISINOS - HT Micron para o desenvolvimento de capacidade absortiva na área de semicondutores
ResumoA capacidade de uma organização identificar, assimilar e aplicar conhecimento do ambiente externo é estudada no campo das teorias organizacionais sob a temática denominada “capacidade absortiva”. A corrente principal da literatura tem considerado a capacidade absortiva como uma habilidade dependente da trajetória da organização, o que a torn
Gest. Prod.. Publicado em: 08/09/2015
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10. An Asynchronous Interface with Robust Control for Globally-Asynchronous Locally-Synchronous Systems
ABSTRACT: Contemporary digital systems must necessarily be based on the "System-on-Chip" (SoC) concept. Especially in relation to the aerospace industry, these systems must overcome some additional engineering challenges concerning reliability, safety and low power. An interesting style for aerospace SoC design is the GALS (Globally Asynchronous, Locally Syn
J. Aerosp. Technol. Manag.. Publicado em: 2013-03
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11. Microscopia eletrônica de varredura do molusco contagioso
Molusco contagioso é uma dermatovirose causada por um poxvírus, sendo mais prevalente em crianças com até 5 anos de idade. Um segundo pico de incidência é encontrado em adultos jovens. Com o objetivo de demonstrar sua ultraestrutura três lesões foram curetadas sem rompê-las, cortadas transversalmente e processadas de rotina para microscopia eletrôn
An. Bras. Dermatol.. Publicado em: 2013-02
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12. InvestigaÃÃo do potencial antitumoral in vitro e in vivo de alcalÃides sintÃticos metoxipirrÃlicos. / Investigation of potential antitumor in vitro and in vivo and methoxy-pyrrolic synthetic alkaloids.
Os alcalÃides naturais que apresentam o nÃcleo quÃmico 4-metÃxi-2,2â-bipirrol tem despertado crescente interesse dos pesquisadores em virtude de seu potencial biolÃgico como antibacterianos, antifÃngicos, antiprotozoÃrios, imunossupressores e anticÃncer. Oriundos principalmente de organismos marinhos e bactÃrias seus representantes incluem a classe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012