Economic and financial viability plan for the enterpreneurship of a lyric theatre low-cost company: The case of Zarzuela in Spain

Taking into account that one of the major handicaps when undertaken in the cultural sector is the problem of cost and demand volatility, this paper aims to implement a viability plan for the entrepreneurship of a lyric theatre low-cost company, dedicated to Zarzuela performance, a type of Spanish music like Opera. Firstly, the cultural sector data are analysed in terms of supply and demand and secondly a viability plan is carried out for three years. According to the results it is concluded that this type of venture is very risky if you do not have grant or other financial resources, due to the variability of demand and the increase in unit costs as the artistic performance has a fixed production technology that cannot absorb the technical progress of the rest of the economy

Explanatory factors of university student participation in flamenco

The present work offers a study exploring University of Seville students’ cultural participation and how often they attend live flamenco shows. Based on the statistical yearbook of this university, a sample of 452 students from different fields was selected and, by applying a questionnaire, a binomial logit model and an ordered finance model were constructed. Our empirical findings offer descriptive, explanatory and predictive statistical results regarding participation and frequency. For example, the results evidence that 43% of the University of Seville students have never attended a live flamenco show and that one of the main issues influencing attendance is human and cultural capital

Value Chain: From iDMU to Shopfloor Documentation of Aeronautical Assemblies

Competition in the aerospace manufacturing companies has led them to continuously improve the efficiency of their processes from the conceptual phase to the start of production and during operation phase, providing services to clients. PLM (Product Lifecycle Management) is an end-to-end business solution which aims to provide an environment of information about the product and related processes available to the whole enterprise throughout the product’s lifecycle. Airbus designs and industrializes aircrafts using Concurrent Engineering methods since decades. The introduction of new PLM methods, procedures and tools, and the need to improve processes efficiency and reduce time-to-market, led Airbus to pursue the Collaborative Engineering method. Processes efficiency is also impacted by the variety of systems existing within Airbus. Interoperability rises as a solution to eliminate inefficiencies due to information exchange and transformations and it also provides a way to discover and reuse existing information. The ARIADNE project (Value chain: from iDMU to shopfloor documentation of aeronautical assemblies) was launched to support the industrialization process of an aerostructure by implementing the industrial Digital Mock-Up (iDMU) concept in a Collaborative Engineering framework. Interoperability becomes an important research workpackage in ARIADNE to exploit and reuse the information contained in the iDMU and to create the shop floor documentation. This paper presents the context, the conceptual approach, the methodology adopted and preliminary results of the project

On the study of the single-stage hole-flanging process by SPIF

Recent studies show the capability of single-point incremental forming to perform successfully hole-flanging operations using multi-stage strategies. The aim of this work is to investigate the ability of the SPIF process to perform hole-flanges in a single stage, contributing to a better understanding of the formability of the sheet in this demanding situation. To this end, a series of experimental tests in AA7075-O metal sheets are performed in order to evaluate the limiting forming ratio. The physical mechanisms controlling sheet failure during the process are analyzed and discussed. In the test conditions studied this failure is postponed necking followed by ductile fracture in the wall of the flange.Ministerio de Economía y Competitividad DPI2012-3291

Preliminary investigation on homogenization of the thickness distribution in hole-flanging by SPIF

A drawback of the hole-flanging process by single-stage SPIF is the non-uniform thickness obtained along the flange. Multi-stage strategies have been used to improve it, however they increase notably the manufacturing time. This work presents a preliminary study of the tool paths for a hole-flanging process by SPIF in two stages. An intermediate geometry of the piece is proposed from the analysis of the thickness distribution observed in previous single-stage process. A simple optimization procedure is used to automate the intermediate part design, the NC code generation for the tool path and the validation of the optimal forming strategy by means of FEA

Recent Approaches for the Determination of Forming Limits by Necking and Fracture in Sheet Metal Forming

Forming limit diagrams (FLD’s) are used to evaluate the workability of metal sheets. FLD’s provide the failure locus at which plastic instability occurs and localized necking develops (commonly designated as the forming limit curve - FLC), and the failure loci at the onset of fracture by tension (FFL) or by in-plane shear (SFFL). The interest of metal formers in controlling localized necking is understandable because the consequence of plastic instability is an undesirable surface blemish in components. However, because under certain loading conditions fracture can precede necking in sheet metal forming processes, there is a growing interest in characterizing the forming limits by necking and fracture in the FLD’s. This paper gathers together a number of recently developed methodologies for detecting the onset of local necking and fracture by in-plane tension or in-plane shear, and discusses their applicability to determine experimentally the FLC’s, FFL’s and SFFL’s.Ministerio de Economía y Competitividad DPI2012-3291

Numerical explicit analysis of hole flanging by single-stage incremental forming

The use of Single-Point Incremental Forming (SPIF) technology in hole flanging operations using multi-stages strategies have been widely studied in the last few years. However, these strategies are very time-consuming, limiting its industrial application.In a very recent work of the authors, the capability of SPIF process to successfully perform hole-flanges using a single-stage strategy has been experimentally investigated. The aim of the present work is to develop a numerical model of this process to beable to predict the sheet failure as a function of the size of the pre-cut hole. The numerical results are compared and discussed in the light of experimental tests over AA7075-O metal sheets with 1.6mm thickness.Ministerio de Economía y Competitividad DPI2015-64047-

A Comprehensive Review of the Effect of Honey on Human Health

Honey is a nutritious, healthy, and natural food, to which antioxidant, anti-inflammatory, and antimicrobial properties have been attributed, mainly due to its content of phenolic compounds. The aim of this review is to analyze the available evidence of the effect of honey on humans. Fortyeight clinical trials published between 1985 and 2022 were analyzed, with a total of 3655 subjects. More beneficial effects of honey intake than no or negative effects on different cardiovascular and metabolic risk factors, glucose tolerance, mucositis caused by chemo-radiotherapy, cough in children and wound healing, among others have been observed. Although the number of studies conducted to date is limited and the different investigations are not standardized, beneficial effects of honey intake have been observed, especially when its intake replaces the intake of other sweeteners. In addition, honey could be a safe adjuvant to be administered alongside drugs used for certain diseases.Programa Operativo de Empleo Juvenil (Youth Employment Program)Junta de Andalucía-Consejería de Universidad, Investigación e Innovación Research Project: P21_00777 M.P.-M

La creatividad en las regiones europeas. Estudio comparativo a partir del análisis clúster

En el presente estudio se analizará el rol de la creatividad como factor de desarrollo económico clave para la calidad de vida y el bienestar para la población. Una de las características más representativas de la creatividad es su reparto no homogéneo, ya que tiende a concentrarse en determinados territorios. El objetivo principal de nuestro trabajo consiste en desarrollar un análisis de situación sobre el sistema creativo español respecto al conjunto de las regiones europeas. Para ello aplicaremos el análisis clúster, mediante el cual se clasificará a cada región europea de acuerdo a las siguientes variables: industrias semicreativas, empleo en el sector cultural y creativo, recursos culturales, nivel educativo, clase creativa, calidad de las instituciones y estructura urbana. Los resultados obtenidos permitirán caracterizar y analizar las distintas agrupaciones y, por ende, arrojarán luz sobre la falta de homogeneidad en las regiones estudiadas y sobre las deficiencias que presentan las regiones españolas, lo cual resulta de gran utilidad a la hora de diseñar las políticas culturales a nivel europeo

On the Use of Maximum Force Criteria to Predict Localised Necking in Metal Sheets under Stretch-Bending

The maximum force criteria and their derivatives, the Swift and Hill criteria, have been extensively used in the past to study sheet formability. Many extensions or modifications of these criteria have been proposed to improve necking predictions under only stretching conditions. This work analyses the maximum force principle under stretch-bending conditions and develops two different approaches to predict necking. The first is a generalisation of classical maximum force criteria to stretch-bending processes. The second approach is an extension of a previous work of the authors based on critical distance concepts, suggesting that necking of the sheet is controlled by the damage of a critical material volume located at the inner side of the sheet. An analytical deformation model is proposed to characterise the stretch-bending process under plane-strain conditions. Different parameters are considered, such as the thickness reduction, the gradient of variables through the sheet thickness, the thickness stress and the anisotropy of the material. The proposed necking models have been successfully applied to predict the failure in different materials, such as steel, brass and aluminiumGobierno español DPI2015-64047-