On the shape of dark matter halos from MultiDark Planck simulations

The halo shape plays a central role in determining important observational properties of the haloes such as mass, concentration and lensing cross-sections. The triaxiality of lensing galaxy clusters has a substantial impact on the distribution of the largest Einstein radii, while weak lensing techniques are sensitive to the intrinsic halo ellipticity. In this work, we provide scaling relations for the shapes of dark matter haloes as a function of mass (peak height) and redshift over more than four orders of magnitude in halo masses, namely from $10^{11.5}$ to $10^{15.8}~h^{-1}~$M$_\odot$. We have analysed four dark matter only simulations from the MultiDark cosmological simulation suite with more than 56 billion particles within boxes of 4.0, 2.5, 1.0 and 0.4 $h^{-1}$Gpc size assuming \textit{Planck} cosmology. The dark matter haloes have been identified in the simulations using the {\sc rockstar} halo finder, which also determines the axis ratios in terms of the diagonalization of the inertia tensor. In order to infer the shape for a hypothetical halo of a given mass at a given redshift, we provide fitting functions to the minor-to-major and intermediate-to-major axis ratios as a function of the peak height.Comment: Accepted for publication in MNRAS (14 pages, 13 figures). The ROCKSTAR outputs used in this paper are available at https://www.cosmosim.org/cms/simulations/data

La propiedad del suelo no urbanizable en la Comunidad Valenciana

En el presente artículo se realiza un estudio completo del concepto de suelo no urbanizable, así como de sus distintas categorias y de las distintas actuaciones que se puede llevar a cabo en el suelo no urbanizale común, analizando tanto la legislación nacional como la legislación de la Comunitat Valenciana

Recurso de casación, incumplimiento por el comprador del contrato de compraventa del inmueble: comentario a la STS (Sala de lo civil) 705/2013, de 12 de noviembre (Rj 2013, 7866)

La imposibilidad de cumplimiento de la prestación excluye la situación de mora y produce un incumplimiento definitivo al verse frustrado el interés del acreedor. Para que exista la novación, sea con efectos modificativos o extintivos de la obligación originaria, es necesario el acuerdo de las partes.The lack of payment or breach of contract excludes the default and produces a final non-fulfilment because the creditor's interest becomes frustrated. For that there is a novation, either with amending or extinctive effects of the originative obligation, the agreement of the parties is required

Review and Comparison of Intelligent Optimization Modelling Techniques for Energy Forecasting and Condition-Based Maintenance in PV Plants

Within the field of soft computing, intelligent optimization modelling techniques include various major techniques in artificial intelligence. These techniques pretend to generate new business knowledge transforming sets of "raw data" into business value. One of the principal applications of these techniques is related to the design of predictive analytics for the improvement of advanced CBM (condition-based maintenance) strategies and energy production forecasting. These advanced techniques can be used to transform control system data, operational data and maintenance event data to failure diagnostic and prognostic knowledge and, ultimately, to derive expected energy generation. One of the systems where these techniques can be applied with massive potential impact are the legacy monitoring systems existing in solar PV energy generation plants. These systems produce a great amount of data over time, while at the same time they demand an important e ort in order to increase their performance through the use of more accurate predictive analytics to reduce production losses having a direct impact on ROI. How to choose the most suitable techniques to apply is one of the problems to address. This paper presents a review and a comparative analysis of six intelligent optimization modelling techniques, which have been applied on a PV plant case study, using the energy production forecast as the decision variable. The methodology proposed not only pretends to elicit the most accurate solution but also validates the results, in comparison with the di erent outputs for the di erent techniques

Failure mode prediction and energy forecasting of PV plants to assist dynamic maintenance tasks by ANN based models

In the field of renewable energy, reliability analysis techniques combining the operating time of the system with the observation of operational and environmental conditions, are gaining importance over time. In this paper, reliability models are adapted to incorporate monitoring data on operating assets, as well as information on their environmental conditions, in their calculations. To that end, a logical decision tool based on two artificial neural networks models is presented. This tool allows updating assets reliability analysis according to changes in operational and/or environmental conditions. The proposed tool could easily be automated within a supervisory control and data acquisition system, where reference values and corresponding warnings and alarms could be now dynamically generated using the tool. Thanks to this capability, on-line diagnosis and/or potential asset degradation prediction can be certainly improved. Reliability models in the tool presented are developed according to the available amount of failure data and are used for early detection of degradation in energy production due to power inverter and solar trackers functional failures. Another capability of the tool presented in the paper is to assess the economic risk associated with the system under existing conditions and for a certain period of time. This information can then also be used to trigger preventive maintenance activities

Changes in the influence of board characterisitcs on corporate results due to the recent global financial crisis

The main purpose of this study is to analyse the changes caused by the global financial crisis on the influence of board characteristics on corporate results, in terms of corporate performance, corporate risk-taking, and earnings management. Sample comprises S&P 500 listed firms during 2002-2008. This study reveals that the environmental conditions call for different behaviour from directors to fulfil their responsibilities and suggests changes in normative and voluntary guidelines for improving good practices in the boardroom

CLUMP-3D. Testing Λ\LambdaCDM with galaxy cluster shapes

The $\Lambda$CDM model of structure formation makes strong predictions on concentration and shape of DM (dark matter) halos, which are determined by mass accretion processes. Comparison between predicted shapes and observations provides a geometric test of the $\Lambda$CDM model. Accurate and precise measurements needs a full three-dimensional analysis of the cluster mass distribution. We accomplish this with a multi-probe 3D analysis of the X-ray regular CLASH (Cluster Lensing And Supernova survey with Hubble) clusters combining strong and weak lensing, X-ray photometry and spectroscopy, and the Sunyaev-Zel'dovich effect. The cluster shapes and concentrations are consistent with $\Lambda$CDM predictions. The CLASH clusters are randomly oriented, as expected given the sample selection criteria. Shapes agree with numerical results for DM-only halos, which hints at baryonic physics being not so effective in making halos rounder.Comment: v2: 8 pages, in press on ApJL. Extended discussion on regularity. One of three new companion papers of the CLUMP-3D project (Keiichi Umetsu et al., arxiv:1804.00664; I-Non Chiu et al., arXiv:1804.00676

Aplicación del modelado digital y la impresión 3D en el proceso de elaboración de props Y FIGURAS COLECCIONABLES

Application of digital modeling techniques and 3D printing to developing original props and interpretations and replicas of objects from audiovisual products, video games, comic, graphic novel, etc. , into a professional profile known as "prop maker".Aplicación de técnicas de modelado digital e impresión 3D a la elaboración de utillería original e interpretaciones y réplicas de objetos presentes en productos audiovisuales, videojuegos, comic, novela gráfica, etc., dentro de un perfil profesional conocido como "prop maker".Ferrero Ibañez, CJ. (2017). Aplicación del modelado digital y la impresión 3D en el proceso de elaboración de props Y FIGURAS COLECCIONABLES. http://hdl.handle.net/10251/91973TFG

A vueltas con la investidura del Presidente del Gobierno y el artículo 99 de la Constitución Española

RESUMEN. El apartado tercero del artículo 1 CE dispone que «La forma política del Estado español es la Monarquía parlamentaria». De esta afirmación constitucional se deriva que el Rey deba intervenir de manera relevante, y al amparo de lo dispuesto en los artículos 62.d y 99 CE, en la formulación de propuesta de candidato a la Presidencia del Gobierno. Para evitar esta situación, y tras el análisis de derecho comparado y autonómico, se formula propuesta mas acorde con el sistema parlamentario de gobierno, en el que el Rey se limita a intervenir estrictamente como Jefe del Estado. Palabras clave: sistema parlamentario de gobierno, artículo 99.CE, Rey, propuesta de candidato, investidura Presidente del Gobierno.ABSTRACT. According to article 1, paragraph 3 of the Spanish Constitution «The political form of the Spanish State is that of a parliamentary monarchy». As a consequence of this statement, and under articles 62.d and 99 of the Spanish Constitution, the King plays an outstanding role in proposing the candidate for President of the Government. In order to avoid this situation, after reviewing both comparative and autonomic Law, a new proposal is made that suits better with the parliamentary government system, in which the King is limited to intervene strictly as head of state