- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Magnetic confinement fusion research
- Fusion materials and technologies
- Physics of Superconductivity and Magnetism
- HVDC Systems and Fault Protection
- Agricultural and Food Sciences
- Nanocomposite Films for Food Packaging
- Thermal Analysis in Power Transmission
- Electromagnetic Launch and Propulsion Technology
- Particle Accelerators and Free-Electron Lasers
- Food composition and properties
- Superconductivity in MgB2 and Alloys
- Coconut Research and Applications
- Polysaccharides Composition and Applications
- Spacecraft and Cryogenic Technologies
- ZnO doping and properties
- Sensory Analysis and Statistical Methods
- Advanced Cellulose Research Studies
- Advanced Photocatalysis Techniques
- Business and Management Studies
- Surface Modification and Superhydrophobicity
- Protein Hydrolysis and Bioactive Peptides
- Material Properties and Processing
- Botanical Research and Applications
National Institutes for Quantum Science and Technology
2017-2024
Universidade Federal do Rio Grande do Norte
2017-2024
Departamento de Ciência e Tecnologia
2021
Brazilian Agricultural Research Corporation
2021
National Council for Scientific and Technological Development
2019
Japan Atomic Energy Agency
2003-2016
Universidade de São Paulo
2006-2008
Toshiba (Japan)
2007
Advanced Science Research Center
1996-2005
Universidade Federal de Santa Catarina
2003-2004
This study aimed to produce spray dried acerola juice microparticles with different protein carriers be incorporated into edible starch films. The were evaluated for solids recovery, polyphenol retention, solubility, hygroscopicity, particle size distribution, X-ray diffraction, phytochemical compounds and antioxidant activity. Acerola produced WPI/hydrolysed collagen (AWC) higher recovery (53.5 ± 0.34% w/w), retention (74.4 0.44% high solubility in water (85.2 0.4% total content (128.45...
The Central Solenoid Model Coil (CSMC) was designed and built from 1993 to 1999 by an ITER collaboration between the U.S. Japan, with contributions European Union Russian Federation. main goal of project establish superconducting magnet technology necessary for a large-scale fusion experimental reactor. Three heavily instrumented insert coils were cover wide operational space testing. CS Insert, tested in April-August 2000. TF Federation, will be fall 2001. NbAl 2002. testing takes place...
Japan Atomic Energy Agency (JAEA) has fabricated and tested the four conductor samples composed of high performance strands manufactured by bronze-route process for ITER Central Solenoid (CS) conductor. The current sharing temperature (Tcs) electrically assessed at 45.1 K 10.85 T along cycling loading 48.8 kA initially were 6.0 6.1 K, then 5.3 5.5 after 6000 cycles first SULTAN sample named JACS01, respectively. As results second JACS02, Tcs values 7.2 6.8 6.6 10000 each conductor,...
The performance of four Nb <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Sn conductors for the ITER central solenoids was tested. current sharing temperatures (T xmlns:xlink="http://www.w3.org/1999/xlink">cs</sub> ) were measured over approximately 9000 electromagnetic cycles, including two or three thermal cycles between 4.2 K and room temperature. T increased became almost constant through cycling. gradient electric field against...
Este estudo teve como objetivo quantificar os compostos fenólicos em extratos hidroalcoólicos de resíduo acerola, tanto in natura quanto desidratado, visando avaliar seu potencial fonte antioxidantes naturais e agentes antimicrobianos. Os resíduos foram preparados solução hidroalcoólica (1:1) a 15% (m/v) submetidos à extração por ultrassom, seguida agitação mecânica. O teor foi quantificado pelo método microplacas utilizando o reagente Folin-Ciocalteu, atividade antioxidante avaliada contra...
A large volume of plastic waste is disposed in the environment and landfills worldwide. To remediate this serious environmental issue, sustainable alternatives to substitute traditional fossil fuel-derived plastics are necessary. In regard, starch-degradable films a promising avenue for promoting sustainability food industry due starch's low cost, non-toxicity, availability desirable film-forming capacities. However, starch-based may have challenging water vapor barrier properties mechanical...
The world's largest pulsed superconducting coil was successfully tested by charging up to 13 T and 46 kA with a stored energy of 640 MJ. ITER central solenoid (CS) model CS insert were developed fabricated through an international collaboration, their cooldown tests carried out test operation teams. In tests, where the original goal 0.4 T/s T, achieved ramp rates 0.6 1.2 T/s, respectively. addition, charged discharged 10 003 times in background field no degradation operational temperature...
The aim of this work was to develop cassava starch biocomposites with varius concentrations grape skin (Gr) and acerola (Ac) residues (0.1, 1.0, 5.0 10.0 wt%) using extrusion injection molding processes. Grape residue had the highest concentration total monomeric anthocyanin (ANC) Ac phenolic content (TPC) sugars. fruit thermal degradation onset temperatures above processing temperature profile polymer biocomposites. results showed that antioxidant, physicochemical, mechanical, morphological...
Studies were carried out to produce biodegradable films from cassava starch. Two alternatives investigated. In the first, obtained by starch gelatinization followed thermopressing and glycerol was used at different concentrations as a plasticizer. second, acetate solubilization of in organic solvents, casting on glass plate drying room temperature. The transparent resistant traction. also but breakable. use these paper impregnation improved mechanical properties paper.
Under the International Thermonuclear Experimental Reactor (ITER) project, Japan Atomic Energy Agency (JAEA) is procuring all of Nb <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Sn conductors for Central Solenoid (CS). The CS consists six vertically stacked modules. height and outer diameter are approximately 13 m 4 m, respectively. has a circular five stage cable. All 43 km cables will be manufactured in Japan. Before mass-production...
The performances of six <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">${\rm Nb}_{3}{\rm Sn}$</tex></formula> conductors for the ITER Toroidal Field coils were tested. Four them showed similar degradation rates their current sharing temperatures Notation="TeX">$T_{cs}$</tex> </formula> over 1,000 electromagnetic cycles. By contrast, two sharp Notation="TeX">$T_{cs}$</tex></formula> degradations at 50...
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Japan Atomic Energy Agency has developed four types of <formula formulatype="inline"> <tex>$\hbox{Nb}_{3}\hbox{Sn}$</tex></formula> strand which can be used in the ITER TF coils. One is a made by an internal tin process and others are bronze strands. The achieved critical current density more than 790 formulatype="inline"><tex>$\hbox{A/mm}^{2}$</tex> </formula> strands 980...
Many full size conductors for the ITER TF coils have been tested at SULTAN test facility in Switzerland conductor qualification. JAEA two samples and kinds of Nb <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Sn strands were evaluated through tests. Now another sample named JATF3 has tested, which uses other strands. The satisfy critical current density J xmlns:xlink="http://www.w3.org/1999/xlink">c</sub> requirement, but results lower...
In this work, physical, chemical and morphological modifications of three different polyamide 6.6 (PA6.6) fabrics were investigated using double barrier dielectric (DBD) plasma treatment. Several techniques characterization used to study the effects caused by interaction between discharge fabrics, such as: contact angle, water drop adsorption, Energy Dispersive Spectroscopy (EDS), X-ray Photoelectron (XPS), Scanning Electron Microscopy (SEM), whiteness Berger degree tensile strength. All...
AC losses of Nb/sub 3/Sn conductor samples with various void fractions for the ITER Central Solenoid Model Coil (CSMC) were measured by using calorimetric and magnetization techniques. The CSMC is designed to generate magnetic field 13 T at operating current 46 kA. consists multi-stage cable, having 1152 strands, Incoloy 908 square jacket circular hole. strands are coated chrome plating 2 /spl mu/m layer. last sub-cables wrapped Inconel tape, high electric resistivity, reduce coupling loss....
The design and manufacture of Nb 3 Sn conductors for ITER toroidal field (TF) coils have many technical challenges. Although it was demonstrated in the model coil project that a sufficiently high performance engineering is valid, unexpected issues arose. Through both theoretical experimental efforts improved were developed. Japan Atomic Energy Agency started to procure TF as part project. Because required tonnage strands quite large compared with past experience superconducting higher than...