Materials Literature
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The integrity of transplanted mesenchymal stem cells (MSCs) for cardiac regeneration is dependent on cell-cell or cell-matrix adhesion, which is inhibited by reactive oxygen species (ROS) generated in ischemic surroundings after myocardial infarction. Intracellular ROS play a key role in the regulation of cell adhesio…
Ti-6Al-4V is an important alpha+beta titanium alloy with an interesting and challenging correlation between the mechanical properties and its complex microstructure. The microstructure presents a ...
Comparing experimental measurements of mill lifter deflections with 2D and 3D DEM predictions
The aim of this paper was to analyse the sintering kinetics and microstructure evolution of ZnO. Powder was isothermally sintered (15, 30, 60, 90 and 120 minutes) in the temperature range from 800 to 1200oC. The values of Lenel parameter were used to analyze both densification and mass transport processes. Scanning el…
Due to increasing prices for wood fuels the utilisation of new biomass fuels has become a topic of strong interest for biomass combustion systems. In this study, thermal degradation of several types of biomass such as conventional wood biomass (spruce), short rotation coppice (willow and poplar) as well as herbaceous…
Aniline matrix polymerization in the presence of polysulfonic acids with different chemical structure and molecular mass in water and water-2-propanol mixtures is investigated. It is found that aniline matrix polymerization leads to formation of soluble polyelectrolyte complexes where polyaniline is in emeraldine form…
The interfacial adhesion between the chloroprene rubber (CR) and aramid fiber treated with cold plasma was investigated. The surface properties of aramid fiber and CR were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM) and dynamic contact angle (DCA) measurements. The surface morpho…
In the present investigation, to evaluate the performance of a 25% cement replacement by fly ash (FA), blended composite and control (without FA) was hydrated with sea water (SW) with the water to binder ratio 0.4. Intervals of the hydrated samples are 1 hour, 6 hours, 7 hours, 1 day, 7 days, 28 days, 90 days and 180…
Few figures in the history of the Americas are surrounded with more colorful lore and acclamation than the Cuban politician, teacher, patriot, and poet Jose Marti. Among Marti's literary contributions, his Ismaelillo, a collection of fifteen poems published in 1882, claims prominence as both Marti's first book of poem…
Resumo: As atividades de suinocultura e de avicultura estao crescendo muito rapidamente no Brasil. Estes sistemas de producao geram grandes quantidades de residuos orgânicos. Atualmente, no Brasil sao produzidos cerca de 7,8 milhoes de toneladas de cama-de-aviario e 105 milhoes de m3 de dejetos liquidos de suinos. A u…
Mechanical properties viz. compression strength, comp. modulus, impact strength, and hardness are studies to assess the influence of nanoclay mixed with modified epoxy reinforced with weave glass fiber reel (WGFR). Clay/epoxy nanocomposites are prepared by high shear mechanical mixer followed by ultra-sonicator is use…
The objective of this study is to investigate the effect of injection conditions on exhaust emissions and engine performances in a natural-gas-fueled dual fuel engine. An experimental study was performed using a single-cylinder test engine with a common rail injection system, varying fuel injection quantity and inject…
Variations in the co-monomer, styrene content in the unsaturated polyester (UP) resin affect the thermal stability and the mechanical properties.These are governed by the phase behaviour of the mixture.Dynamic relaxation measurements by dielectric related methods show an increase in the phase separation of cured resin…
Polyhydroxyalkanoates (PHAs) are polyesters of hydroxyalkanoates synthesized by various bacteria as intracellular carbon and energy storage compounds and accumulated as granules in the cytoplasm of cells. In this work, we describe the isolation and characterization of Pseudomans putida P5 strain, as well as of some of…
The aim of this study is pointing out the dominant factors of transfer phenomena and the main reason for distribution about heat and mass in single cell of Polymer Electrolyte Fuel Cell. The 2D model was simulated by CFD to evaluate the influence of inflow gas condition and gas channel structure of separator on mass a…
The synthesis of phenolxy herbicides- Zn/Al-layered double hydroxides nanohybrids by reacting 2, 4-di chloro- (24D) and 2, 4, 5-trichlorophenoxy acetic acid (TCPA) nanocomposites were accomplished using direct method of ion exchange. The release of nanohybrids into various aqueous salutions; carbonate and phosphate wa…
In the present paper, we introduce two new subclasses B (k) λ (α) and L (k) λ (α) of analytic functions with respect to k-symmetric points. Some coefficient inequalities for functions belonging to these classes and their subclasses with positive coefficients are provided. Mathematics Subject Classification: 30C45
An analysis of heterogeneous oxidation catalysts was performed to determine the activities and optimal operating conditions for the multiphase oxidative desulfurization (ODS) reactions, using a model diesel. Catalysts studied included well-characterized Pd on Al2O3 and activated carbon supports, and carbon-supported M…
Tehnika mlazom tinte (ink-jet) ima vrlo siroku primjenu te mogucnost tiska na razlicitim podlogama (tekstil, papir, metal, staklo, plastika ...). Osim direktnog otiskivanja, sve cesce je indirektno otiskivanje sa termalnih transfernih folija nacinjenih tehnikom mlaza tinte na tkanine. U ovom radu istražene su dvije ka…
The prevention of disease or assessment of the sustainability of building walls in a wet medium requires the study of the mass diffusivity in these walls. The aim of this work is to study the isothermal kinetics of a chemical space in a standard mortar. Water steam has already been the subject of multiple studies, the…