Ara es mostren els items 106122-106141 de 244457

    • Fatigue resistance of press hardened 22MnB5 steels 

      Parareda Oriol, Sergi (Universitat Politècnica de Catalunya, 2020-02-10)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Press hardening of Boron steels, mainly the 22MnB5 grade, has been implemented during more than a decade in several structural components of the automotive sector, mostly in the body-in-white (BiW). The process combines ...
    • Fatigue resistance of press hardened 22MnB5 steels 

      Parareda, Sergi; Casellas Padró, Daniel; Frómeta Gutiérrez, David; Lara, Antoni; Pujante Agudo, Jaume (2020-01-01)
      Article
      Accés obert
      In press hardened steels, fatigue behaviour is very sensitive to surface defects or irregularities, either intrinsic or introduced during trimming operations. This work addresses the understanding and prediction of fatigue ...
    • Fatigue strength assessment of HP stiffener joints with fillet-welded attachments using the peak stress method 

      Fischer, C.; Fricke, W.; Meneghetti, G.; Rizzo, C.M. (CIMNE, 2013)
      Text en actes de congrés
      Accés obert
      The Peak Stress Method (PSM) is a simplified, finite element-based technique to readily estimate the Notch Stress Intensity Factors (NSIFs) at the tip of sharp-V-shaped notches. More precisely, it was shown that the maximum ...
    • Fatigue strength of cold-work tool steels: microstructure – critical flaw correlation 

      Goez, Alexey; Picas Anfruns, Ingrid; Valls, I.; Casas, B.; Casellas Padró, Daniel; Llanes Pitarch, Luis Miguel (2009)
      Comunicació de congrés
      Accés restringit per política de l'editorial
    • Fatigue susceptibility under contact loading of hardmetals coated with ceramic films 

      Llanes Pitarch, Luis Miguel; Tarrés, E.; Ramírez, Giselle; Botero Vega, Carlos Alberto; Jiménez Piqué, Emilio (2010-04)
      Article
      Accés restringit per política de l'editorial
      The contact fatigue behavior of a fine-grained hardmetal coated with two distinct ceramic films, either a TiN monolayer or a WC/C multilayer, is studied by means of indentation testing techniques. Spherical indentation ...
    • Fatigue testing and properties of hardmetals in the gigacycle range 

      Kotas, Agnieszka Betzwar; Danninger, Herbert; Weiss, Brigitte; Mingard, K.P.; Sánchez, José; Llanes Pitarch, Luis Miguel (2017-01-01)
      Article
      Accés obert
      Hardmetal products are frequently fatigue loaded in service, such as e.g. cutting tools for milling or percussion drills. In the present work, the fatigue behaviour of hardmetals was investigated into the gigacycle range ...
    • Fatigue testing of reinforced concrete beam instrumented with distributed optical fiber sensors (DOFS) 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (Civil Engineering Research Association of Ireland (CERAI), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The use of fiber optic sensors on civil engineering structural health monitoring (SHM) applications have become quite popular for the past two decades. Within this type of sensors however, the study and use of Optical ...
    • Fatigueless structures inspired by nature 

      Badal Font, Enric (Universitat Politècnica de Catalunya, 2020-01)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Tallinna Tehnikaülikool
      Fatigueless structures inspired by nature are possible due to biomimetic. It offers significant approaches for designing complex structures to meet certain structural requirements. In order to accomplish this, it is necessary ...
    • FaTLease: scalable fault-tolerant lease negotiation with Paxos 

      Hupfeld, Felix; Kolbeck, Björn; Stender, Jan; Högqovist, Mikael; Cortés, Toni; Marti, Jonathan; Malo, Jesús (2008-06)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A lease is a token which grants its owner exclusive access to a resource for a defined span of time. In order to be able to tolerate failures, leases need to be coordinated by distributed processes. We present FaTLease, ...
    • Fatores de incentivo à servitização através da integração do serviço ao cliente no processo de desenvolvimento de produtos 

      Azpiazu Auguet, Alejandra (Universitat Politècnica de Catalunya / Universidade Federal do Rio Grande do Sul, 2014)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Universidade Federal do Rio Grande do Sul
      O Desenvolvimento de Produto (DP) ganhou o posto de processo contínuo dentro das organizações em função do baixo ciclo de vida dos produtos no mercado. Este processo é realizado por times multidisciplinares, mas a área de ...
    • Fatty oil hydrogenation in supercritical solvents: process design and safety issues 

      Ramírez Rangel, Eliana; Mayorga Cárdenas, Miguel Yuri; Cuevas, Daniel; Recasens Baxarías, Francisco Javier (2011-03-02)
      Article
      Accés restringit per política de l'editorial
      A simulation study of a SCF process is carried out using Aspen™ with previously available catalytic kinetics for the simulation of the reactor. Two supported catalysts were considered: a standard Pd/carbon, and an egg-shell ...
    • Fatty-acid oxygenation by fungal peroxygenases: From computational simulations to preparative regio- and stereoselective epoxidation 

      Municoy Terol, Martí; González Benjumea, Alejandro; Carro Aramburu, Juan; Aranda Oliden, Carmen; Linde López, Dolores; Renau Mínguez, Chantal; Ullrich, René; Hofrichter, Martin; Guallar Tasies, Victor; Gutiérrez Suárez, Ana; Martínez Ferrer, Angel Tomás (2020-11-10)
      Article
      Accés obert
      Epoxidation of unsaturated fatty acids by unspecific peroxygenases (UPOs) of the best-known long-UPO subfamily, including the Agrocybe aegerita (AaeUPO) and Coprinopsis cinerea enzymes, is reported here. To understand the ...
    • Fatxade. 

      Gaudí, Antoni, 1852-1926 (Universitat Politècnica de Catalunya, 1906)
      Plànol
      Accés restringit per política patrimonial
      1 plànol del conjunt de 6 plànols del projecte per a la casa Milà, coneguda popularment amb el nom de La Pedrera. -- (Escale de 0,001 mts per metre)
    • FAU-Net: an attention U-Net extension with feature pyramid attention for prostate cancer segmentation 

      Quihui Rubio, Pablo Cesar; Flores Araiza, Daniel; González Mendoza, Miguel; Mata Miquel, Cristian; Ochoa Ruíz, Gilberto (Association for Computing Machinery (ACM), 2023)
      Text en actes de congrés
      Accés obert
      This contribution presents a deep learning method for the segmentation of prostate zones in MRI images based on U-Net using additive and feature pyramid attention modules, which can improve the workflow of prostate cancer ...
    • Fault Characterization Through FPGA Undervolting 

      Salami, Behzad; Unsal, Osman S.; Cristal Kestelman, Adrián (IEEE, 2018-12-06)
      Comunicació de congrés
      Accés obert
      The power and energy efficiency of Field Programmable Gate Arrays (FPGAs) are estimated to be up to 20X less than Application Specific Integrated Circuits (ASICs). What is needed to close this gap is aggressive power/energy ...
    • Fault detection algorithm for wind turbines’ pitch actuator systems 

      Pujol Vázquez, Gisela; Acho Zuppa, Leonardo; Gibergans Bàguena, José (2020-06-04)
      Article
      Accés obert
      A fault detection innovation to wind turbines’ pitch actuators is an important subject to guarantee the efficiency wind energy conversion and long lifetime operation of these rotatory machines. Therefore, a recent and ...
    • Fault detection and automatic supervision methodology for PV systems 

      Silvestre Bergés, Santiago; Chouder, Aissa (2010)
      Text en actes de congrés
      Accés obert
      In this work, we show a new methodology for automatic supervision and fault detection of PV Systems, based mainly on the analysis of the power losses. This methodology includes parameter extraction techniques to calculate ...
    • Fault detection and diagnosis of a photovoltaic system based on deep learning using the combination of a Convolutional Neural Network (CNN) and Bidirectional Gated Recurrent Unit (Bi-GRU) 

      Faris Amiri, Ahmed; Kichou, Sofiane; Oudira, Houcine; Chouder, Aissa; Silvestre Bergés, Santiago (Multidisciplinary Digital Publishing Institute (MDPI), 2024-01-24)
      Article
      Accés obert
      The meticulous monitoring and diagnosis of faults in photovoltaic (PV) systems enhances their reliability and facilitates a smooth transition to sustainable energy. This paper introduces a novel application of deep learning ...
    • Fault detection and diagnostics in ventilation units using linear regression virtual sensors 

      Giovanni Mattera, Claudio; Quevedo Casín, Joseba Jokin; Escobet Canal, Teresa; Reza Shaker, Hamir; Jradi, Muhyiddine (2018)
      Text en actes de congrés
      Accés obert
      Buildings represent a significant portion of global energy consumption. Ventilation units are one of the largest components in buildings systems and are responsible for large part of energy consumption. Ventilation units ...
    • Fault detection and fault tolerant control in wind turbines 

      Tutivén Gálvez, Christian (Universitat Politècnica de Catalunya, 2018-09-27)
      Tesi
      Accés obert
      Renewable energy is an important sustainable energy in the world. Up to now, as an essential part of low emissions energy in a lot of countries, renewable energy has been important to the national energy security, and ...