Results 41 to 50 of about 8,475 (118)
Caracterización de asfaltos modificados con diferentes aditivos
El uso de asfaltos modificados en la construcción de pavimentos flexibles se ha extendido a nivel mundial como respuesta a condiciones más severas durante su vida útil y buscando un mejor desempeño que permita prolongar su duración.
Fabián Elizondo Arrieta +2 more
doaj +1 more source
Uniform and bead‐free PLA fibers containing functional biobased plasticizers for potential application in food packaging are prepared by force‐spinning technique. ACETEM and CITREM commonly used as food additives are employed within the fibers to provide such functional properties to the fiber mats.
Ignacio Mena‐Prado +7 more
wiley +1 more source
ACERCA DEL VOLUMEN LIBRE PROMEDIO EN CO-POLÍMEROS DIBLOQUE DE POLI-ESTIRENO Y POLI-ISOPRENO
Se determinó el volumen libre promedio en co-polímeros dibloque de (poli-estireno)-co-(poli-isopreno) para dos composiciones determinadas: 13.1 y 89.1 de porcentaje en masa de poli-estireno, respectivamente.
F. Herrera +3 more
doaj
Lingüística de interações moleculares
As moléculas biológicas mais interessantes são longos polímeros. Em analogia com a linguagem humana alfabética, estes podem ser chamados de textos, e analisados, quanto à estrutura primária, como sequência de letras (monômeros; como nucleotídeos ...
Romeu Cardoso Guimarães
doaj +1 more source
Synthesized Tröger's based POPs showed great versatility in heterogeneous catalysis reactions and for pollutant adsorption. ABSTRACT Porous organic polymers are a new class of polymeric materials that combine permanent porosity, high surface area, monomer diversity, and synthetic tunability, making them highly promising candidates for application in ...
Tiago F. Machado +4 more
wiley +1 more source
Integration of Polymer‐Based Phase Change Materials Into Building Walls in the Hot Region of Algeria
Schematic illustration of the integration of polymer‐based phase change materials (PEG/diatomite, PEG‐1000, and fatty‐acid polyurethane) into multilayer building walls in the hot region of Algeria, showing their optimal placement near the exterior wall to absorb daytime heat, delay heat transfer, and reduce indoor temperature fluctuations, thereby ...
Houssem Goudjil +5 more
wiley +1 more source
The rising demand for renewable energy points to biodiesel as a viable fossil fuel alternative, yet its limited oxidative stability remains a challenge. This study reveals that methyl‐substituted hydroquinone derivatives exhibit enhanced antioxidant capacity, suggesting their promise as biofuel additives.
João P. M. Rodrigues +5 more
wiley +1 more source
O Estudo da degradação térmica de amostras comercias de Cloreto e Acetato de Polivinila é proposto como experimento didático para a introdução do estudo da análise térmica nos cursos de graduação.
Robson Fernandes de Farias
doaj +1 more source
A nivel mundial se ha emprendido el uso de aditivos a fin de tener mezclas asfálticas de mejor calidad y que permitan disminuir el envejecimiento prematuro de las mismas, en nuestro país se requiere investigaciones que sean ejecutadas con distintos ...
Paul Javier León-Torres +2 more
doaj +1 more source
Magnetic Hopfions as Local Rotations of the Uniform Magnetization Background
The Hopf mapping of 3D coordinate space to the unit sphere m2 = 1 in the magnetization space m(r) can be parametrized by some angles. These angles are used to define a local rotation matrix to restore the hopfion magnetization configuration from the uniformly magnetized state for any Hopf indices.
Konstantin Y. Guslienko
wiley +1 more source

