Exploració per autor "Hernández Díaz, David"
Ara es mostren els items 11-24 de 24
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Impact properties and water uptake behavior of old newspaper recycled fibers-reinforced polypropylene composites
Hernández Díaz, David; Villar Ribera, Ricardo Alberto; Espinach, Francesc Xavier; Julian, Fernando; Hernández Abad, Vicente; Delgado Aguilar, Marc (Multidisciplinary Digital Publishing Institute (MDPI), 2020-02-28)
Article
Accés obertNatural fiber-reinforced thermoplastic composites can be an alternative to mineral fiber-based composites, especially when economic and environment concerns are included under the material selection criteria. In recent ... -
Indoor PM2.5 removal efficiency of two different non-thermal plasma systems
Hernández Díaz, David; Martos Ferreira, David; Hernández Abad, Vicente; Villar Ribera, Ricardo Alberto; Tarrés Farrés, Joaquim Agustí; Rojas Sola, José Ignacio (2021-01-15)
Article
Accés obertThe use of non-thermal plasma (NTP) generators in air processing systems and their duct networks to improve indoor air quality (IAQ) has grown considerably in recent years. This paper reviews the advantages and disadvantages ... -
Interactive educational software of textile design
Hernández Abad, Francisco; Rojas Sola, José Ignacio; Hernández Abad, Vicente; Ochoa Vives, Manuel; Font Andreu, Jorge; Hernández Díaz, David; Villar Ribera, Ricardo Alberto (John Wiley & Sons, 2012-03)
Article
Accés restringit per política de l'editorialThis article presents a novel educational software package which develops an Interactive Didactic Application (IDA) created by the Polytechnic University of Catalonia (UPC), and which contains the essentials of textile ... -
Interactive educational software of textile desing
Hernández Abad, Francisco; Rojas Sola, José Ignacio; Hernández Abad, Vicente; Ochoa Vives, Manuel; Font Andreu, Jorge; Hernández Díaz, David; Villar Ribera, Ricardo Alberto (John Wiley & Sons, 2010)
Article
Accés obertThis paper presents a novel educational software package which develops an Interactive Didactic Application (IDA) created in the Polytechnic University of Catalonia (UPC), and which contains the essentials of Textile ... -
Interface strength and fiber content influence on corn stover fibers reinforced bio-polyethylene composites stiffness
Tarrés Farrés, Joaquim Agustí; Hernández Díaz, David; Ardanuy Raso, Mònica (Multidisciplinary Digital Publishing Institute (MDPI), 2021-03-01)
Article
Accés obertStiffness of material is a key parameter that allows the use of material for structural or semi-structural purposes. Besides, lightweight materials are increasingly calling the attention of the industry. Environmental ... -
Macroporous silicon : a next generation catalytic monolith for ethanol steam reforming
Vega Bru, Didac; Hernández Díaz, David; Todorov Trifonov, Trifon; Rodríguez Martínez, Ángel; Alcubilla González, Ramón; López, E.; Jiménez, Nuria; Llorca Piqué, Jordi (Publicacions de la Universitat de València (PUV), 2011)
Text en actes de congrés
Accés restringit per política de l'editorialMacroporous silicon membranes, consisting of straight parallel pores with a diameter of 3.3μm and depth/width ratio >60, are used as microreactors for high efficiency hydrogen generation via steam reforming of ethanol. The ... -
Recerca i tecnologia en enginyeria gràfica i disseny a la Universitat Politècnica de Catalunya
García Carrillo, Àgueda; Ramos Cabal, Alba; Datas Medina, Alejandro; Sureda Carbonell, Bàrbara; Faura López de Haro, Bernat; del Cañizo Nadal, Carlos; Valls Vidal, Cristina; Hernández Díaz, David; Mestres Domenech, Francesc; Bermúdez Rodríguez, Francisco; Hernández Abad, Francisco; Peña Andrés, Javier; Ivern Cacho, Jordi; Lapaz Castillo, José Luís; Ibáñez García, José María; Roncero Vivero, María Blanca; López Membrilla, Manuel; Alcaraz Sendra, Olga; Cusola Aumedes, Oriol; Rojas, Orlando J.; Farrerons Vidal, Óscar; Villar Ribera, Ricardo Alberto; Baltà Salvador, Rosó; Castro de Losada, Rubén de; Hernández Abad, Vicente (OmniaScience, 2020-03-02)
Llibre
Accés obertEls temps canvien cada vegada més ràpidament, i a la universitat això encara es nota més. L’històric departament d‘Expressió Gràfica a l’Enginyeria (EGE) de la Universitat Politècnica de Catalunya, garant d’una docència ... -
Self-assessment of transversal competences in engineering students
Seculí Díaz, Faust; Hernández Díaz, David; Julián Pérez, Fernando; Espinach, Francesc Xavier; Alcalà Vilavella, Manel (International Association of Technology, Education and Development (IATED), 2021)
Comunicació de congrés
Accés restringit per política de l'editorialThis study show the results of a self-assessment’s competences in engineering students from two Spanish universities, the Polytechnic University of Catalonia (UPC) and the University of Girona (UdG), carried out last year. ... -
Technical and environmental viability of a road bicycle pedal part made of a fully bio-based composite material
Hernández Díaz, David; Villar Ribera, Ricardo Alberto; Serra Parareda, Ferran; Weyler Pérez, Rafael; Sánchez Romero, Montserrat; Rojas Sola, José Ignacio; Julián Pérez, Fernando (Multidisciplinary Digital Publishing Institute (MDPI), 2021-03-13)
Article
Accés obertGlass fibre is the most widely used material for reinforcing thermoplastic matrices presently and its use continues to grow. A significant disadvantage of glass fibre, however, is its impact on the environment, in particular, ... -
Template fabrication of 3D metallic microstructures by electrochemical etching and electroplanting
Hernández Díaz, David; Lange, Diego; Todorov Trifonov, Trifon; Garin Escriva, Moises; García Molina, Francisco Miguel; Rodríguez Martínez, Ángel; Alcubilla González, Ramón (2010)
Text en actes de congrés
Accés obertIn this work, we show that macroporous silicon consisting of periodic arrays of etched pores is a feasible alternative for synthesis of 2D and 3d metallic microstructures due to its flexibility in the definition of complex ... -
The tower press for obtaining olive oil: analysis through computer-aided engineering
Rojas Sola, José Ignacio; De la Morena De la Fuente, Eduardo; Hermoso Orzáez, Manuel Jesús; Hernández Díaz, David (Multidisciplinary Digital Publishing Institute (MDPI), 2020-11-19)
Article
Accés obertThis article analyzes a large tower press used to press crushed olives to obtain olive oil. To this end, a study of computer-aided engineering (CAE) was carried out using the parametric software Autodesk Inventor Professional, ... -
Topography of the interfacial shear strength and the mean intrinsic tensile strength of hemp fibers as a reinforcement of polypropylene
Hernández Díaz, David; Villar Ribera, Ricardo Alberto; Julian, Fernando; Tarrés Farré, Joaquim Agustí; Espinach, Francesc Xavier; Delgado Aguilar, Marc (Multidisciplinary Digital Publishing Institute (MDPI), 2020-02-20)
Article
Accés obertThe strength of the interphase between the reinforcements and the matrix has a major role in the mechanical properties of natural ¿ber reinforced polyole¿n composites. The creation of strong interphases is hindered by the ... -
Tuning the emissivity of 3D macroporous silicon in the mid-infrared
Hernández Díaz, David; Vega Bru, Didac; Garin Escriva, Moises; Todorov Trifonov, Trifon; Rodríguez Martínez, Ángel; Alcubilla González, Ramón (2010)
Text en actes de congrés
Accés obertTailoring the thermal emission of a particular material by using periodic micro-structures has attracted great interest for its potential applications in heating and lighting systems or thermophotovoltaics. […] Metallic ... -
Una revisión histórica: desde el dibujo en ingeniería hacia la ingeniería del diseño
Rojas Sola, José Ignacio; Fernández Sora, Alberto; Serrano-Tierz, Ana; Hernández Díaz, David (2011-06)
Article
Accés restringit per política de l'editorialInvestigació històrica sobre l'evolució dels avenços en geometria i particularment en el dibuix tècnic com a dibuix en l'enginyeria. Es realitza una revisió per etapes que inclou el món Antic, l'Edat Mitjana, el Renaixement, ...