BackBrowsing Artículos by Title
Now showing items 736-755 of 10506
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An Analysis of Electroplated cBN Grinding Wheel Wear and Conditioning during Creep Feed Grinding of Aeronautical Alloys
Vidal Irusta, Gorka
; ; ; ; González Barrio, Haizea (MDPI, 2018-05-14)
Cubic boron nitride (cBN), in addition to diamond, is one of the two superabrasives most commonly used for grinding hard materials such as ceramics or difficult-to-cut metal alloys such as nickel-based aeronautical alloys. ... -
An Analysis of the Type of Questions Posed by Teachers in English-Medium Instruction at University Level
Doiz Bienzobas, Aintzane; Lasagabaster Herrarte, David (MDPI, 2023-01-12)
Teacher-led questions not only guide meaning-making interactions but they also scaffold students’ learning, and this is especially important in English-medium instruction (EMI). Due to the scant literature on this topic ... -
An analytic superfield formalism for tree superamplitudes in D=10 and D=11
(Springer, 2018-05-16)Tree amplitudes of 10D supersymmetric Yang-Mills theory (SYM) and 11D supergravity (SUGRA) are collected in multi-particle counterparts of analytic on-shell superfields. These have essentially the same form as their chiral ... -
An anomaly in quantum phases induced by borders
(Nature, 2020-04-24)The stationary behavior of a quantum system is determined by its Hamiltonian and its boundary conditions. All quantum phase transitions (QPT) reported previously were induced by changing the Hamiltonian. In a circular spin ... -
An Approach to the Synthesis of a Hepatitis C Virus Inhibitor through a Proline-Catalyzed 1,3-Dipolar Cycloaddition Using Acrolein
; ; Prieto Aretxabaleta, Liher; Uria Pujana, Uxue ; Carrillo Fernández, María Luisa ; Vicario Hernando, José Luis (Thieme, 2021-09-06)
An efficient and easy protocol for performing 1,3-dipolar cycloaddition using azomethine ylides and acrolein is presented. The reaction catalyzed by d-proline allows the synthesis of C-3 unsubstituted pyrrolidines. The ... -
An approach version of fuzzy metric spaces including an ad hoc fixed point theorem
Roldán López de Hierro, Antonio Francisco; De la Sen Parte, Manuel; Martínez-Moreno, Juan; Roldán López de Hierro, Concepción (Springer, 2015-02-27)
In this paper, inspired by two very different, successful metric theories such us the real view-point of Lowen's approach spaces and the probabilistic field of Kramosil and Michalek's fuzzymetric spaces, we present a family ... -
An archaeology of “small worlds”: social inequality in early medieval Iberian rural communities
(Taylor & Francis, 2019-10-17)This paper uses the archaeological record to analyse the forms of social inequality that existed within early medieval rural communities. The paper takes as its case study Álava, where there is a significant density of ... -
An archaeometrical approach to the majolica pottery from Alcazar de Najera archaeological site
CALPARSORO FORCADA, ESTEFANIA; Sanchez Garmendia, Uxue ; ; ; García Iñañez, Javier (Springer, 2019-05-22)
The city of Nájera, located in the north of the Iberian Peninsula, hosts an alcazar of Arab origin, which became the residence of the king of Pamplona-Nájera and later of the duke and duchess of Nájera. From this last ... -
An architecture for dynamic QoS management at Layer 2 for DOCSIS access networks using OpenFlow
Huarte Arrayago, Maider; Mendiola, Alaitz; Fuentes, Victor; Matías Fraile, Jon; Astorga Burgo, Jasone ; Toledo Gandarias, Nerea ; Jacob, Eduardo (Elsevier, 2016-01-15)
Over the last few years, Software-Defined Networking (SDN) has emerged as one of the most disruptive and profitable novelties in networking. SDN was originally conceived to improve performance and reduce costs in Ethernet-based ... -
An Architecture for On-Line Measurement of the Tip Clearance and Time of Arrival of a Bladed Disk of an Aircraft Engine
(MDPI, 2017-10)Safety and performance of the turbo-engine in an aircraft is directly affected by the health of its blades. In recent years, several improvements to the sensors have taken place to monitor the blades in a non-intrusive ... -
An Artificial Neural Network for Solar Energy Prediction and Control Using Jaya-SMC
; ; Barambones Caramazana, Oscar; ; ; ; (MDPI, 2023-01-25)
In recent years, researchers have focused on improving the efficiency of photovoltaic systems, as they have an extremely low efficiency compared to fossil fuels. An obvious issue associated with photovoltaic systems (PVS) ... -
An atlas of O-linked glycosylation on peptide hormones reveals diverse biological roles
(Nature, 2020-08-20)Peptide hormones and neuropeptides encompass a large class of bioactive peptides that regulate physiological processes like anxiety, blood glucose, appetite, inflammation and blood pressure. Here, we execute a focused ... -
An attachment-based pilot program to promote adolescent adjustment to parental divorce
; ; ; Comino González, Priscila; ; (BMC, 2024)
The study aimed to assess the impact of an attachment-based intervention on adolescent adaptation to parental divorce. The Adolescent Adjustment Pilot Program to Parental Divorce (AAPPD) employed an experimental group ... -
An E2F7-Dependent Transcriptional Program Modulates DNA Damage Repair And Genomic Stability
Michelena Sánchez, Jone; Apraiz García, Aintzane ; Vallejo Rodríguez, Jon ; García Santisteban, Iraia ; Fullaondo Elordui-Zapaterieche, Asier ; ; ; Zubiaga Elordieta, Ana María (Oxford University Press, 2018-05-18)
The cellular response to DNA damage is essential for maintaining the integrity of the genome. Recent evidence has identified E2F7 as a key player in DNA damage-dependent transcriptional regulation of cell-cycle genes. ... -
An easy and simple method for the immobilization of dyes through click reactions: activated alkyne, copper not needed
; ; ; Vilas Vilela, José Luis; (RSC, 2024)
The copper-free azide–alkyne click reaction has shown to be a successful alternative to immobilize covalently a fluorescente compound onto poly(-L-lactic) acid (PLLA) surfaces. Proceded by basic hydrolysis and amidation ... -
An eco-driving approach for ride comfort improvement
Mata Carballeira, Oscar; Del Campo Hagelstrom, Inés Juliana ; Asua Uriarte, Estibaliz (Wiley, 2022-02)
[EN] New challenges on transport systems are emerging due to the advances that the current paradigm is experiencing. The breakthrough of the autonomous car brings concerns about ride comfort, while the pollution concerns ... -
An Educational Project Based on the YouTuber Phenomenon for the Development of a Minority Language
Etxebarria Lejarreta, Aintzane; Iglesias Chaves, Aitor ; Eguskiza Sánchez, Naia ; (MDPI, 2022-05-20)
In the Basque Autonomous Community (BAC), the “Basic Law on the normalization of the use of Basque” (law 10/1982, of 24 November) establishes that Basque citizens have the right to express themselves in either of the two ... -
An effective model for the quantum Schwarzschild black hole
; ; Vera Jiménez, Raül (Elsevier, 2022-06-10)
We present an effective theory to describe the quantization of spherically symmetric vacuum motivated by loop quantum gravity. We include anomaly-free holonomy corrections through a canonical transformation and a linear ... -
An Efficient and Robust Current Control for Polymer Electrolyte Membrane Fuel Cell Power System
Silaa, Mohammed Yousri; Derbeli, Mohamed; Barambones Caramazana, Oscar; Napole, Cristian; Cheknane, Ali; González de Durana García, José María (MDPI, 2021-02-22)
Taking into account the restricted ability of polymer electrolyte membrane fuel cell (PEMFC) to generate energy, it is compulsory to present techniques, in which an efficient operating power can be achieved. In many ... -
An Efficient Approach for Solving Differential Equations in the Frame of a New Fractional Derivative Operator
; ; ; ; De la Sen Parte, Manuel; (MDPI, 2023-01-03)
Recently, a new fractional derivative operator has been introduced so that it presents the combination of the Riemann–Liouville integral and Caputo derivative. This paper aims to enhance the reproducing kernel Hilbert space ...