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Mostrando ítems 1-20 de 20
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A model-driven framework for developing android-based classic multiplayer 2D board games
(Springer, 2021)Mobile applications and game development are attractive fields in software engineering. Despite the advancement of programming languages and integrated development environments, there have always been many challenges for ... -
An enhanced symmetric-key based 5G-AKA protocol
(Elsevier, 2021)5G technology is called to support the next generation of wireless communications and realize the “Internet of Everything” through its mMTC (massive Machine-Type-Communications) service. The recently standardized 5G-AKA ... -
La autorización ambiental unificada como instrumento de prevención y control ambiental integrados en Andalucía
(Actualidad Jurídica Ambiental, 2020)En 2007, la Comunidad Autónoma de Andalucía creó un nuevo instrumento de prevención y control ambiental integrados: la Autorización Ambiental Unificada. Cuando ha transcurrido ya más de una década de su implantación y se ... -
Ensemble ellipse fitting by spatial median consensus
(2021)Ellipses are among the most frequently used geometric models in visual pattern recognition and digital image analysis. This work aims to combine the outputs of an ensemble of ellipse fitting methods, so that the deleterious ... -
Local structure and Ca/Si ratio in C-S-H gels from hydration of blends of tricalcium silicate and silica fume
(Elsevier, 2021-03)At the microscale, C-S-H gels from alite, or neat Portland cements, has a Ca/Si ratio close to 1.80. At the nanoscale, C-S-H is described by a defective tobermorite structure which allows a maximum Ca/Si ratio close to ... -
Mean curvature of spacelike submanifolds in a Brinkmann spacetime
(2021)Several geometric properties of complete spacelike submanifolds, with codimension at least two, in a Brinkmann spacetime are shown from natural assumptions involving the mean curvature vector field $\mcv$ of the spacelike ... -
Modelización de la trayectoria del efecto de programas y políticas: implicaciones para la evaluación
(2021)En la evaluación de programas, el momento de cuando se realice la evaluación puede determinar drásticamente el resultado de dicha evaluación, sobre todo cuando se evalúa el impacto. A pesar de su importancia, en la literatura ... -
Modelling Digital Avatars: a tuple space approach
(2021-01-07)The development of the Internet of Things (IoT) came with the manufacturing of a huge amount of smart things equipped with sensors for making them aware of their environment, and with network connection for allowing remote ... -
NH3/H2O-mediated proton conductivity and photocatalytic behaviour of Fe(II)-hydroxyphosphonoacetate and M(II)-substituted derivatives
(The Royal Society of Chemistry, 2019-12-27)Synthesis redesign and derivatisation of Fe(II)-hydroxyphosphonoacetate, incorporating different ammonia loads and M(II) isomorphic substitutions (M = Mn, Co and Zn), have been implemented. The NH3 adsorption led to materials ... -
Phase Transformation Dynamics in Sulfate-Loaded Lanthanide Triphosphonates. Proton Conductivity and Application as Fillers in PEMFCs
(ACS Publications. American Chemical Society, 2021)Phase transformation dynamics and proton conduction properties are reported for cationic layer-featured coordination polymers derived from the combination of lanthanide ions (Ln3+) with nitrilo-tris(methylenephosphonic ... -
Preservice Elementary Science Teachers' Argumentation Competence: Impact of a Training Programme
(Springer, 2018)The recent literature has shown the importance of Preservice Elementary Science Teachers (PESTs) having a deep understanding of argumentation, as this factor may affect the nature of the class activities that are taught ... -
Relationships and tensions between the curricular program and the lived curriculum. A narrative research
(Teaching and Teacher Education, 2021)This research focused on the relationships that teachers and students establish with curricular programs, the tensions they experience, and the effects this has on shaping the classroom experience. The study employed a ... -
Sequential extraction procedure: a versatile tool for environmental research
(CISA publisher, 2020-12-28)The sequential extraction procedure as a tool to assess the environmental risk of metals in solid matrices has been widely studied. In this work, other promising application of these methods is proposed: the evaluation of ... -
The role of sodium and sulfate sources on the rheology and hydration of C3A polymorphs
(Elsevier, 2022)The higher reactivity of orthorhombic C3A (ort-C3A) in sulfate-containing solutions, compared with cubic C3A (cb-C3A), was previously related to the differences in crystal structure or the sodium in the ort-C3A pore solution. ... -
Zinc(II), cobalt(II) and manganese(II) networks with phosphoserine ligand: Synthesis, crystal structures magnetic and conduction properties
(The Royal Society of Chemistry, 2017)A series of zinc(II), cobalt(II) and manganese(II) coordination networks with the phosphoserine ligand (Pser) is synthesized and characterized. Whereas in compounds 1 and 2 with the general formula [M(Pser)]n [M = Zn (1) ...