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Now showing items 2781-2790 of 11041
Cellulose Nanocrystal Membranes as Excipients for Drug Delivery Systems
(MDPI, 2016-12-12)
In this work, cellulose nanocrystals (CNCs) were obtained from flax fibers by an acid hydrolysis assisted by sonochemistry in order to reduce reaction times. The cavitation inducted during hydrolysis resulted in CNC with ...
Functional Chitosan Derivative and Chitin as Decolorization Materials for Methylene Blue and Methyl Orange from Aqueous Solution
(MDPI, 2019-02-01)
Dyes are classified as one of the major pollutants of water. They have negative impacts not only on environment but also on human health. In fact, wastewater that contains these harmful substances requires many types of ...
El precio de la rebelión: el endeudamiento de la Diputació del General de Catalunya durante la guerra civil catalana (1462-1472)
(Universidad de Salamanca, 2022)
Cuando en 1462 estalló la guerra civil catalana entre los partidarios de Juan II y los de la Diputació del General de Catalunya, esta tuvo que enfrentarse a un serio problema: encontrar financiamiento para ...
La representación social del narcotraficante en jóvenes sinaloenses
(El Colegio de Sonora, 2017-08)
El narcotráfico es una problemática instaurada en México, y gracias a la figura del narcotraficante ha cobrado gran relevancia social. Los objetivos del estudio fueron presentar un esbozo histórico del narcotraficante en ...
Amorphous FeCoCrSiB Ribbons with Tailored Anisotropy for the Development of Magnetic Elements for High Frequency Applications
(MDPI, 2022)
The ferromagnetic resonance (FMR) in the frequency range of 0.5 to 12.5 GHz has been investigated as a function of external magnetic field for rapidly quenched Fe3Co67Cr3Si15B12 amorphous ribbons with different features ...
Impact of combined versus single-mode training programs based on drop jump and specific multidirectional repeated sprint on bio-motor ability adaptations: a parallel study design in professional basketball players
(BMC, 2022)
Background Jumping and specific multidirectional repeated sprint ability are important in basketball. The objective of this study was to assess the contributions of 8-week combined versus single-mode training programs based ...
Barriers and challenges of the assessment framework of the Commission Recommendation (EU) 2019/786 on building renovation by European RTD projects
(Elsevier, 2022-08)
The refurbishment of buildings is one of the main keys to pursue the targets of the European Green Deal, and to accomplish the European Union has applied two mechanisms among others: the European policy and the European ...
Temperature modulated DSC for composition analysis of recycled polyolefin blends
(Elsevier, 2022-09)
Post-consumer plastic waste contains blends of numerous types of polyethylene (PE) and isotactic polypropylene (i-PP), whose recycling is challenging due to the complexity of this waste stream. A comprehensive knowledge ...
Limitations in the energy balance when VGO/aqueous bio-oil mixtures are co-processed in FCC units
(Elsevier, 2022-09)
The effect on the energy balance of a FCC unit after co-feeding the aqueous fraction of a bio-oil together with a vacuum gas oil (VGO) has been studied. The simulation program considers the interdependency relationship ...
Fatigue improvement and residual stress relaxation of shot-peened alloy steel DIN 34CrNiMo6 under axial loading
(Elsevier, 2022-09)
Shot-peening treatment was applied to a quenched and tempered DIN 34CrNiMo6 steel to improve its high-cycle R: -1 axial fatigue strength. Compared with the machined condition, the increase in the fatigue limit was 21.8%. ...