A5041000448- Magnetic Properties and Synthesis of Ferrites
- Advanced Chemical Physics Studies
- Iron oxide chemistry and applications
- Advanced oxidation water treatment
- Water Quality Monitoring and Analysis
- Electromagnetic wave absorption materials
- Spectroscopy and Quantum Chemical Studies
- Agricultural and Food Sciences
- Atomic and Molecular Physics
- Membrane Separation Technologies
- Electrohydrodynamics and Fluid Dynamics
- Nanomaterials for catalytic reactions
- Multiferroics and related materials
- Plant Micronutrient Interactions and Effects
- Molecular spectroscopy and chirality
- Advancements in Battery Materials
- Nanoparticles: synthesis and applications
- Clay minerals and soil interactions
- Pigment Synthesis and Properties
- Adsorption and biosorption for pollutant removal
- Recycling and Waste Management Techniques
- Phosphorus and nutrient management
- Photovoltaic Systems and Sustainability
- Sustainable Design and Development
- Mining Techniques and Economics
Universidade Federal do Espírito Santo
2011-2023
Centro Universitário do Norte
2018
Federal Center for Technological Education of Minas Gerais
2007
University of Windsor
2003
Ricardo (United Kingdom)
2003
Abstract Contracted basis sets of double zeta valence quality plus polarization functions (DZP) and augmented DZP sets, which were recently constructed for the first‐ second‐row atoms, are applied to study electronic ground states diatomic molecules CN − , N 2 AlF, SiO, PN, SC, ClB, P . At Hartree–Fock (HF) and/or Møller–Plesset second‐order (MP2) levels, total molecular orbital energies, dissociation bond lengths, harmonic vibrational frequencies, dipole moments calculated compared with...
We have applied the generator coordinate Hartree–Fock method to generate adapted Gaussian basis sets for atoms from H through Xe. The Griffin–Hill–Wheeler–Hartree–Fock equations are integrated numerically generating accurate these atoms. Our atomic wave functions an improvement over those of Clementi et al. using larger atom-optimized geometrical and Jorge a universal set. In all cases, current predict total energy results within 6.13×10−4 hartree numerical limit. ©1999 John Wiley & Sons,...
The present study reports a physicochemical comparison of shade-grown and sun-grown coffee beans, under unripe, rip roasted-ripe conditions, using electrical conductivity measurements, electron paramagnetic resonance (EPR), infrared spectroscopy (FTIR), high performance liquid chromatography (HPLC). Moreover, the assessed parameters were compared with organoleptic evaluations based on Coffee Quality Institute protocol. values found for conductivity, leached potassium, stable free radicals...
A bibliometric analysis using the Web of Science database was performed on green synthesis nanomaterials published between 2003 and 2017, obtaining a sample with total 159 publications. The number citations each paper, thematic areas, sources publication countries origin were quantified. ten most cited papers described in further detail, listing precursor materials, kind material produced among other characteristics. There is variety precursors listed literature, including fungi, bacteria,...
The influence of the distance between electrodes, electrical current, and flow rate emulsified crude oil in water effluent through an electrocoagulation reactor was studied. Power switch at interval 30 s used to reduce electrode passivation. output variables were power consumption, pH, removal from effluent. There no significant change with working time reactor. final pH 7.5 9.5 depending on input variables. It increases higher current tends decrease increased rate. Increasing increase while...
The performance of the previously proposed double zeta valence quality plus polarization functions (DZP) and augmented DZP (ADZP) basis sets is tested at Hartree–Fock, second-order Møller–Plesset, density functional levels theory for electronic ground state second-row diatomic hydrides. Total energy, correlation dissociation bond length, vibrational frequency, dipole moment are calculated compared with results obtained popular reported in literature. It shown that ADZP general provides...
Metallic oxide materials with AB 2 O 4 structure are very interesting for technological applications. Nickel ferrite ( NiFe ), example, attracts considerable attention due to its chemical stability and mechanical hardness. These characteristics make it a suitable material magnetic magneto-optical The properties of have strong dependence on the crystallite size microstructure. Due this dependence, is necessary develop effective methods that allow controlling these variables. aim work...
Heat transfer is one of the mostly used processes in industry. With growth food consumption, it notorious use drying to increase lifetime organic products like fruits, especially through dehydration. In this work, computational performance a fully explicit and Crank-Nicolson implicit finite difference schemes addressed solve heat problem simulating convective cubic particles papaya. The numerical results obtained for temperature profile center sample are compared with experimental data...
O presente artigo tem como objetivo discutir as barreiras existentes para a expansão da logística reversa de Óleos lubrificantes usados e contaminados – Oluc, avaliando eficiência na coleta dos mesmos. método pesquisa foi um estudo caso, delineado por uma documental campo, fim identificar gargalos no gerenciamento resíduos empresas do setor troca óleo município São Mateus-ES. Apesar avanço legislação aplicada ao setor, o evidenciou que em algumas empresas, descarte Oluc seus ainda é...
Various methods have been reported to obtain nanosized ferrite particles such as chemical coprecipitation, sol-gel, spray-drying, microwave plasma, sonochemical, hydrothermal synthesis, reverse micelle technique and mechano synthesis. In this work Nickel Ferrite nanoparticles are produced using coconut water or pectin extracted from apple peel (using sulfuric chloridric acid) precursor for the proteic sol-gel (PSG) method. The samples prepared by drying subsequent isothermal treatment of sol...
Polycrystalline silicon still guarantees its application on solar cells as important market product until year 2050. Due to the increase of photovoltaic industry needing, technologies produce low cost will be needed. The metallurgical grade (Si-GM) has been used Si substrates by atmospheric plasma thermal spray (APTS) which advantages a and fast process. aim this work is characterize APTS sheet microstructure chemical composition promote technology association for cell substrate production....