Article
Materials Science, Multidisciplinary
Zahide Bayer Ozturk, Serkan Dal
Summary: A new ceramic pigment material was obtained from waste of processing chrome ore, and the effects of different factors on color formation in industrial glazes were investigated. The results showed that the calcination temperature and amount of waste powder, type of glaze, and firing temperature were the main factors affecting the color of the glazed tiles.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Oscar Yanez-Hernandez, Armando Rios-Lira, Yaquelin Verenice Pantoja-Pacheco, Jose Alfredo Jimenez-Garcia, Jose Antonio Vazquez-Lopez, Salvador Hernandez-Gonzalez
Summary: This research explores and optimizes the production process of Trichoderma harzianum in a biotechnology company. Using the NOBA method, a mixed-level factorial design is fractionated to identify the significant factors for maximizing spore production. The results indicate that substrate type, air supply, and the interaction between these two factors have a significant impact, while pH, humidity, and temperature variations do not affect the fungus's production levels.
APPLIED SCIENCES-BASEL
(2023)
Article
Computer Science, Interdisciplinary Applications
Sajjad Beigmoradi, Mehrdad Vahdati
Summary: The study focuses on optimizing the rear end of a hatchback to improve fuel efficiency and comfort, by reducing drag coefficient and aerodynamic noise sources. Numerical simulation and fractional factorial design algorithm are used to simplify the research process, while analysis of variance helps determine optimal parameter levels to enhance efficiency.
ENGINEERING WITH COMPUTERS
(2021)
Article
Agricultural Engineering
Thatiane R. Mota, Dyoni M. Oliveira, Rachael Simister, Caragh Whitehead, Alexandra Lanot, Wanderley D. dos Santos, Camila A. Rezende, Simon J. McQueen-Mason, Leonardo D. Gomez
Summary: By combining a high-resolution Fractional Factorial Design with a Central Composite Orthogonal design, the study successfully optimized the conditions for alkaline pretreatment and enzymatic saccharification of sugarcane bagasse. This resulted in maximizing sugar release and biomass compositional changes, indicating the versatility of this approach for other lignocellulosic biomasses.
BIORESOURCE TECHNOLOGY
(2021)
Article
Mathematics
Taher S. Hassan, Ismoil Odinaev, Rasool Shah, Wajaree Weera
Summary: This article presents a technique for solving fractional integro differential equations using the Chebyshev pseudospectral method. The results demonstrate the high accuracy and reliability of the proposed technique, which is compared to other methods and the exact solution. The Chebyshev pseudospectral method is shown to be more accurate and straightforward compared to other methods.
Article
Materials Science, Multidisciplinary
J. C. Echeverria, P. Moriones, J. J. Garrido, M. D. Ugarte, L. Cervera, E. Garaio, C. Gomez-Polo, J. Perez-Landazabal
Summary: Superparamagnetic iron oxide nanoparticles have the potential to act as heat sources in magnetic hyperthermia. Factors such as total iron concentration, ammonia concentration, reaction temperature, sonication time, and percentage of ethanol in the aqueous media were found to have significant effects on the properties of iron oxide MNPs.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Engineering, Environmental
Busra Prill, Umitcan Sedir, Sabriye Yusan, Ozge Elmastas Gultekin
Summary: The purpose of this research was to fabricate starch-based magnetic nanobiocomposites and examine the effects of synthesis parameters on the products. The characterization of the materials was conducted using various techniques, and their performance in removing Sr(II) ions from aqueous solutions was investigated. A full factorial experimental design was used to study the parameters affecting biosorption, and optimal conditions were determined through regression analysis. The composition and chemical state of the nanobiocomposites were analyzed using XPS, and adsorption thermodynamics were calculated.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Construction & Building Technology
Marzieh Namdari, Chang-Seo Lee, Fariborz Haghighat
Summary: Ozone, a hazardous air pollutant, must be kept within a specific limit to protect human health and the environment. Different ozone removal technologies are available, but their feasibility for various applications is not well understood due to limited comprehensive studies. This study addresses this gap by using a statistical design approach to analyze the performance of different granular materials for ozone removal.
BUILDING AND ENVIRONMENT
(2023)
Article
Acoustics
M. Melero, A. J. Nieto, V. Casero-Alonso, E. Palomares, A. L. Morales, C. Ramiro, J. M. Chicharro, P. Pintado
Summary: This study uses fractional factorial design to evaluate the influence of test settings on Experimental Modal Analysis (EMA) results. The results show that the influence of test settings on EMA results is often non-intuitive or predictable. Therefore, a statistical analysis should be conducted before extracting accurate damping data. This technique quantifies the influence of factors and helps researchers make informed decisions.
JOURNAL OF SOUND AND VIBRATION
(2022)
Article
Mathematics, Applied
Shibendu Mahata, Norbert Herencsar, David Kubanek, I. Cem Goknar
Summary: This paper introduces a new technique for optimally designing fractional-order Butterworth low-pass filters in the complex F-plane. The improved accuracy of the proposed scheme is demonstrated through experimental verification. A mixed-integer genetic algorithm is used to optimize the frequency responses of the fractional-order capacitor emulators.
FRACTIONAL CALCULUS AND APPLIED ANALYSIS
(2022)
Article
Thermodynamics
Junior Lagrandeur, Sergio Croquer, Sebastien Poncet, Mikhail Sorin
Summary: This study presents a numerical benchmark for modeling air Ranque-Hilsch vortex tubes, finding that using a density-based solver with a specific turbulence model and source term yields the best prediction results, but predictions vary at different cold mass fractions, and the model cannot fully predict flow reversals.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Environmental Sciences
Abderrezzaq Benalia, Walid Chaibraa, Sara Djeghar, Kerroum Derbal, Amel Khalfaoui, Asma Mahfouf, Raouf Bouchareb, Antonio Panico, Antonio Pizzi
Summary: This study reveals the potential of proteins extracted from oak leaves to treat drinking water and industrial oily wastewater. The analysis of oak leaves confirmed the presence of proteins acting as bio-coagulants. The experimental design identified the optimal operating parameters. The study demonstrated the effectiveness of oak leaves proteins in reducing turbidity and pollutants in both drinking water and industrial oily wastewater.
Article
Engineering, Industrial
Qi Zhou, William Li, Hongquan Xu
Summary: This article discusses the selection of efficient designs based on a criterion, and proposes a new class of regular fractional factorial designs that focus on estimating a subset of columns and their corresponding 2fi's clear of other important effects.
JOURNAL OF QUALITY TECHNOLOGY
(2023)
Article
Environmental Sciences
Hafsa Rabah, Khadidja Khaldi, Mostapha Zerrouki, Mounir Mekidiche, Djahida Lerari-Zinai, Khaldoun Bachari, Abderrahim Choukchou-Braham
Summary: The study evaluated the capability of natural acidified clay and commercial clay as catalyst supports for the degradation of an azo dye using three different advanced oxidation processes. The efficiency of each synthesis step was confirmed through various measurement techniques. The results indicated that both catalysts showed high decolorization efficiencies when using the photo-Fenton process. To determine the optimal conditions, a fractional factorial design was utilized, and the correlation between experimental and predicted values was high.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Chemistry, Applied
Galal Magdy, Mai H. ElNaggar, Fathalla Belal, Heba Elmansi
Summary: A highly sensitive and selective spectrofluorimetric method was developed to determine ricinine in various edible oils. The method showed high sensitivity with low detection limits and reduced sample preparation steps and analysis time.
Article
Chemistry, Applied
L. X. Lovisa, J. M. P. da Silva, A. A. G. Santiago, M. Siu Li, E. Longo, C. A. Paskocimas, M. R. D. Bomio, F. V. Motta
Summary: CaWO4:xEu(3+),yTm(3+) crystals were successfully synthesized by the microwave assisted hydrothermal method at low temperature. The crystals exhibited strong red emission and high color purity, making them promising color converters for white light-emitting diodes and display devices.
JOURNAL OF RARE EARTHS
(2022)
Article
Materials Science, Multidisciplinary
L. X. Lovisa, Eduardo O. Gomes, Lourdes Gracia, A. A. G. Santiago, M. Siu Li, Juan Andres, E. Longo, M. R. D. Bomio, F. Motta
Summary: The study focused on the phase transition and photoluminescence properties of ZrO2 and Tb3+, exploring the energy transfer mechanism and the impact of Tb3+ concentration on the emission characteristics. This research provides insights into the doping process of Tb3+ in ZrO2 and offers a new approach for fabricating multifunctional materials with potential applications in lighting devices.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Multidisciplinary
Anderson A. G. Santiago, Elida M. Macedo, Fernanda K. F. Oliveira, Ricardo L. Tranquilin, Marcio D. Teodoro, Elson Longo, Fabiana Motta, Mauricio R. D. Bomio
Summary: CaMoO4-based g-C3N4 composites synthesized via sonochemistry exhibit excellent photocatalytic activity under UV light, particularly in the discolouration of methylene blue. Structural analysis confirms the presence of g-C3N4 and showcases increased particle interfaces through FEG-SEM imaging. Additionally, the increased dosage of g-C3N4 onto the composite significantly enhances the photocatalytic efficiency.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Multidisciplinary
L. X. Lovisa, D. F. Dos Santos, A. A. G. Santiago, M. Siu Li, E. Longo, F. Motta, M. R. D. Bomio
Summary: The particles of the solid solution of strontium molybdate and tungstate doped with Eu3+ ions showed increased luminescence intensity and higher color purity as the concentration of Eu3+ increased. These characteristics make the samples suitable for application in solid-state lighting devices.
JOURNAL OF MATERIALS SCIENCE
(2022)
Review
Engineering, Electrical & Electronic
N. F. Andrade Neto, A. B. Lima, R. R. Y. O. Wilson, T. C. N. Nicacio, M. R. D. Bomio, F. Motta
Summary: Synthesis based on ultrasonic waves is becoming increasingly popular due to equipment simplicity and fast material obtainment. The implosion of bubbles caused by ultrasonic waves can lead to significant local temperature and pressure variations, enabling the creation of heterostructures which efficiently control charge carrier mobility. Heterostructures are ideal for photocatalytic applications as they optimize the degradation process of contaminants when exposed to light.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Materials Science, Ceramics
M. R. D. Bomio, P. Lavela, A. A. G. Santiago, F. V. Motta, J. L. Tirado
Summary: Microwave calcination is proposed as an alternative route to prepare layered P2-Na2/ 3Ni1/3Mn2/3O2 for sodium-ion batteries. The sample obtained under the fastest conditions of a heating ramp of 20 degrees C min-1 for 2 hours showed well-crystallized rounded particles. It exhibited low internal cell resistance and high diffusion coefficients, allowing for the highest capacity at 1 C and maintaining discharge capacity for at least two hundred cycles.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
J. M. P. Silva, N. F. Andrade Neto, M. D. Teodoro, A. E. M. Paiva, M. R. D. Bomio, F. V. Motta
Summary: In this study, heterostructures of Ag2CrO4/Ag2MoO4 and Ag2CrO4/Ag2WO4 were synthesized using a coprecipitation method at 70℃. The obtained nanoparticles were characterized and their photocatalytic properties were tested. The results showed that these heterostructures exhibited absorption for longer wavelengths, improved photocatalytic activity, and higher efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Environmental Sciences
Debora. F. Dos Santos, Anderson A. G. Santiago, Marcio D. Teodoro, Fabiana V. Motta, Mauricio R. D. Bomio
Summary: In this study, nanomaterials of the SrMoO4/g-C3N4 heterostructure were synthesized by the sonochemical method. The results showed the formation of heterojunctions, broadening of the wavelength absorption range, and a decrease in photoluminescence intensity. Photocatalytic tests demonstrated the high degradation efficiency of the nanomaterials towards organic contaminants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Multidisciplinary
Raquel Dantas Campos, Andre Luiz Menezes de Oliveira, Arpad Mihai Rostas, Andrei Cristian Kuncser, Constatin Catalin Negrila, Aurelian-Catalin Galca, Camila Felix, Lucio Castellano, Fausthon Fred da Silva, Ieda Maria Garcia dos Santos
Summary: Recently, there has been interest in utilizing zeolitic imidazole frameworks (ZIFs) and TiO2 based composites to control the growth of pathogenic microorganisms. In this study, two novel TiO2/ZIF-67 nanocomposites were synthesized using microwave-assisted solvothermal methods, with one pot composite (OPC) and two step composite (TSC) syntheses. The results showed that the TSC sample had higher antimicrobial activity compared to pure ZIF-67, while the OPC sample had lower activity. The difference in antimicrobial performance can be attributed to the structural order/disorder and material solubility, which depend on the synthesis route used.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Ana Rita Ferreira Alves Teixeira, Andre Luiz Menezes de Oliveira, Florentina Neatu, Andrei Cristian Kuncser, Aurelian Catalin Galca, Arpad Mihai Rostas, Ieda Maria Garcia dos Santos
Summary: Sodium hexatitanate (Na2Ti6O13) nanoparticles were synthesized using hydrothermal method with microwave and conventional heating, and their photocatalytic properties were investigated. X-band electron paramagnetic resonance (EPR) spectroscopy was used for the first time to study the dynamics and reactivity of species involved in the photocatalytic mechanism of the (Na2Ti6O13) samples. X-ray diffraction analysis revealed a monoclinic C2/m structure in all samples with different short-range structural order based on the heating method. The presence of Ti3+ point defects, F centers, and oxygen-related defects were observed through EPR and X-ray photoelectron spectroscopy.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Ceramics
S. A. N. Franca Junior, W. Acchar, S. L. A. Dantas, P. H. Chiberio, H. P. A. Alves, M. R. D. Bomio, F. V. Motta, F. Bohn, A. Ferreira, F. Vaz, M. A. Correa
Summary: We conducted a comprehensive investigation on the high-frequency dielectric properties of (ZrO2)100-x(BaTiO3)x heterostructures. By adjusting the content of BaTiO3, we could modify the dielectric constant of the resulting ceramic sheets. Our results demonstrated successful fabrication of heterostructured ceramic sheets and the ability to tailor the electric, structural, and dielectric properties of both ZrO2 and BaTiO3 materials. Furthermore, the evolution of the dielectric constant could be manipulated according to specific technological applications.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
T. B. O. Nunes, M. D. Teodoro, M. R. D. Bomio, F. V. Motta
Summary: This study presents the synthesis and characterization of indium-doped calcium tungstate nanoparticles and investigates their photocatalytic and photoluminescent properties. The results indicate that samples with 8% In3+ ions show improved photocatalytic performance.
DALTON TRANSACTIONS
(2022)
Article
Materials Science, Multidisciplinary
Rayane Ricardo da Silva, Andre Luis Lopes Moriyama, Camila Pacelly Brandao de Araujo, Yara Feliciano Gomes, Carlson Pereira de Souza
Summary: Nanostructured niobium nitride material was synthesized through a solid-gas reaction under specific conditions. The reactive parameters were modified and the evolution of crystal phases was evaluated. The results highlight the importance of physical resistance in the fluid-particle interaction process and demonstrate the successful synthesis of a pure and single-phase powder under certain conditions.
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2022)
