Search results for "blend"
showing 10 items of 421 documents
Desarrollo de prácticas en el laboratorio químico en formato híbrido apoyadas en el trabajo en equipo y vídeos instructivos
2022
[EN] This work presents the adaptation of a course mainly based on practice sessions in the chemical laboratory into a blended learning format after the irruption of the COVID-19 pandemic. The study was conducted during the course Experimentation in Chemical Engineering II of the third academic year of the B.Sc. in Chemical Engineering of the Polytechnic University of València. The development of experimental courses under the context of the pandemic takes place under strict room occupancy and hygiene rules, although teamwork and interaction between students tends to be more important than in theory classes. To make feasible that students gain experience in the use of equipment and pilot pl…
Structural, mechanical and thermal behavior assessments of PCL/PHB blends reactively compatibilized with organic peroxides
2018
Abstract The efficiency of two commercially available organic peroxides, dicumyl peroxide (DCP) and di-(2-tert-butyl-peroxyisopropyl)-benzene (BIB), during reactive processing of poly(e-caprolactone)/poly(3-hydroxybutyrate) (PCL/PHB) blends was investigated. The changes in chemical structure of PCL/PHB blends, as a function of organic peroxide type (DCP/BIB) and content (in range: 0–1.0 parts by weight - pbw), were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis combined with infrared spectroscopy, and headspace analysis combined with gas chromatography with flame ionization detector. Performance properties of PCL/PHB blends were evaluated based on diffe…
Evaluation of an Educational Video Production Environment
2019
In this paper, a cloud-based solution for the easy production and meaningful distribution of video-based learning material is presented and evaluated. Using this system, lecturers can produce video material with their own computers anywhere, at any time. The system enables the production of longer lecture videos as well as short videos, each containing only one of the course's topics. The system also handles video sharing for students automatically in a meaningful way through the course's table of contents. An evaluation of the first production version of the video production and distribution system was carried out by collecting qualitative material from the lecturers and students.
EFFECT OF PROCESSING TEMPERATURE VARIATION ON STORAGE STABILITY OF TIRE RUBBER MODIFIED BINDERS
2012
Tire Rubber Modified Binders (TR-MBs), produced through wet process and used worldwide (e.g. asphalt rubber), have been demonstrated to provide various benefits to pavements and, moreover, represent a good opportunity for recycling tire rubber. However, this technology is still struggling to be fully adopted in Europe, mainly because of the poor stability of TR-MBs during high temperature storage, which leads to high initial costs in modifying existing asphalt plants. No-agitation TR-MBs (also known as terminal blends) are proving to be a great option and their development could also be the key to spreading the use of tire rubber in paving applications in Europe. This paper aims to enrich t…
Micromechanics of “raspberry” morphology in PPE/SAN polymer blends compatibilized with linear ABC triblock terpolymers
2015
Abstract The effect of compatibilization with a symmetrical polystyrene- block -polybutadiene- block -poly(methyl methacrylate) (SBM) triblock terpolymer on the morphological and mechanical properties (specifically toughness) of immiscible poly(2,6-dimethyl-1,4-phenylene ether)/poly(styrene- co -acrylonitrile) (PPE/SAN) blends with different blend (w/w) ratios is investigated. We study the effect of blend viscosity on the localization of the compatibilizer at the blend interface, influencing the mechanical properties of the macroscopic material. The impact of the specific morphology of the blends, known as “raspberry morphology”, on the final material will be explained using thermomechanica…
Synergistic effects of Janus particles and triblock terpolymers on toughness of immiscible polymer blends
2017
Abstract By influencing both the interfacial adhesion and the morphology, compatibilizers determine the mechanical properties of polymer blends. Here, we study the mechanical properties, in particular the fatigue crack propagation (FCP) of immiscible blends of poly(2,6-dimethyl-1,4-phenylene ether)/poly(styrene- co -acrylonitrile) (PPE/SAN), compatibilized with Janus nanoparticles (JPs) and linear polystyrene- block -polybutadiene- block -poly(methyl methacrylate) (SBM) triblock terpolymers. Synergistic effects of a mixture of both compatibilizers improve the FCP behavior and reveal the important role of interface stiffness and flexibility on the mechanical properties of polymer blends. The…
Registro de cámara con Blender
2021
Introducción al registro de cámara con Blender 2.9
The Uses of the Imagination in Moral Neuroeducation
2019
In contrast to influential theories that focus on top-down, deliberative reasoning, triune ethics theory seeks to gather findings from neurobiology, affective neuroscience, and cognitive science and integrate them into a bottom-up theory that focuses on that motivational orientations that are rooted in experientially formed, evolved, unconscious emotional systems. Triune ethics theory identifies three basic attractors for moral functioning based on brain evolution: safety, engagement and imagination. It proposes an integrative ethical education model based on the notion of a moral imagination, which can enhance moral development. It integrates, on the one hand, John Dewey’s theory of moral …
Unity bāzēta “Tower Defense” spēle
2022
Kvalifikācijas darba ietvaros tika izstrādāta Unity bāzēta “Tower Defense” lietotne, kuras autors ir Vitālijs Aņisimovs un darba vadītājs Dr.sc.comp. Edgars Diebelis. Lietotnes (turpmāk spēles) darbības princips un īss raksturojums: Spēles ietvaros lietotājam ir iespēja izvēlēties apkārtni, kurā notiks darbība, galvenais mērķis ir sasniegt pēc iespējas augstāku līmeni, izvietojot apkārtnē torņus, ar kuru palīdzību ir iespējams iznīcināt pretiniekus (šajā gadījumā mākslīgo intelektu), saņemot valūtu, ar kuras palīdzību ir iespējams uzlabot torņus un palielināt iespēju tikt līdz nākamajam līmenim, jo, sasniedzot nākamo līmeni, sarežģītība tiek palielināta tā, lai spēle būtu dinamiska un piepr…
AN EMPIRICAL VIEW ON VALUE THEORY AND VALUE-BASED MANAGEMENT
2016
The main economic purpose of a business organization is to create value for its owner. The value concept is a complex notion that has developed alongside human history and reflects the concerns of human society through time. As a result of the value theory, the management of value has also emerged as an essential and accompanying activity. Value-based management emerged as a management philosophy rather than a management method. It consists of a change in mindset from managing resources or output quantities to value creation. The challenge is to identify or create the value flows and act upon these within the specific business organization to have proper value management. Value creation and…