Results 31 to 40 of about 49,465 (251)

Quantificação de fases argilominerais em matérias-primas cerâmicas pelo método de Rietveld [PDF]

open access: yes, 2013
Tese (doutorado) - Universidade Federal de Santa Catarina, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2013.O método de Rietveld é usado no refinamento das estruturas cristalinas dos materiais na forma de pó e na ...
Santos, Carla Margarete Ferreira dos
core  

Uma avaliação holística de aspectos tecnológicos e ambientais da produção de biodiesel de diferentes matérias-primas no Brasil [PDF]

open access: yes, 2021
Considering the importance of biodiesel production in Brazil, especially with the increase of the obligatory biodiesel blending to diesel, this work aims at comparing the production of biodiesel from two raw materials available in the country ...
SOUSA, Lays Camila de
core  

Directional Flow of Confined Polaritons in CrSBr

open access: yesAdvanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak   +10 more
wiley   +1 more source

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

open access: yesAdvanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas   +11 more
wiley   +1 more source

Total Chemical Synthesis of Interleukin‐15 and Interleukin‐2: Taming Protein Hydrophobicity and Aggregation by a Versatile Solubilizing Strategy

open access: yesAngewandte Chemie, EarlyView.
A reducible solubilizing tag strategy (RST‐2.0) enables the synthesis, purification and ligation of difficult peptides while being readily removable just during folding, which overcomes the common challenges from protein hydrophobicity and aggregation. With this method, we achieved the first total synthesis of native and N‐glycosylated IL‐15 as well as
Jingwen Zeng   +4 more
wiley   +2 more sources

BALANÇOS ENERGÉTICOS DA PRODUÇÃO DE ETANOL PARA DIFERENTES MATÉRIAS PRIMAS

open access: yes, 2014
A utilização do álcool etílico como combustível é apontada hoje como uma das principais alternativas energéticas para o futuro, em substituição aos combustíveis fósseis, que, além de não serem renováveis, geram vários problemas ambientais. Da mesma forma
Oliveira, Karine Beraldo Magalhães   +2 more
core   +2 more sources

Aplicação de resíduos de fundição em massa asfáltica, cerâmica vermelha e fritas cerâmica [PDF]

open access: yes, 2004
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia AmbientalA preocupação com o estado do meio ambiente é crescente, principalmente em função da disponibilidade de recursos tais ...
Chegatti, Schirlene
core  

Eutectozymes as Soft Hybrid Materials for Advanced Biocatalysis

open access: yesAdvanced Materials, EarlyView.
Eutectozymes are sustainable hybrid materials that embed a GOx–HRP cascade within hydrophobic eutectogels featuring a dual supramolecular–covalent network. This architecture preserves native enzyme structure and stability, enables efficient heterogeneous biocatalysis in aqueous media, and positions eutectogels as robust platforms for next‐generation ...
Manuel Eduardo Martinez Cartagena   +10 more
wiley   +1 more source

Estudo da influência do teor e distribuição de tamanho de partícula do quartzo nas propriedades de placas cerâmicas monoporosas [PDF]

open access: yes, 1999
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico.O quartzo é uma fase mineral da sílica encontrada nas matérias-primas utilizadas na produção de azulejos.
Zauberas, Rodrigo Tognotti
core  

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

open access: yesAdvanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno   +16 more
wiley   +1 more source

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