Aitor Erkoreka, Ivan Flores-Abascal, Cesar Escudero, Koldo Martin, Jose Antonio Millan and Jose Maria Sala
Understanding the dynamic hygrothermal behavior of building elements is very important to ensure the optimal performance of buildings. The Laboratory for Quality Control in…
Abstract
Purpose
Understanding the dynamic hygrothermal behavior of building elements is very important to ensure the optimal performance of buildings. The Laboratory for Quality Control in Buildings of the Basque Government tested a flat roof designed by a construction company that developed a building to be constructed using prefabricated modules. This is a five to eight floor building with ventilated façade and a flat roof covered by gravel with the possibility of changing it to a green cover. The paper aims to discuss this issue.
Design/methodology/approach
The interest of this research was threefold. The first objective was to accurately test, under real dynamic weather conditions, the roof design in a PASLINK test cell to obtain the U-value and the thermal capacitance of the different roof layers, and of the roof as a whole, through the precise calibration of resistance-capacitance mathematical models of the roof. Based on the parameters and experimental information of these calibrated models, a second goal was to calibrate and validate a Wufi model of the roof.
Findings
This second calibrated model was then used to simulate the dynamic hygrothermal behavior of the roof, obtaining the roof’s hourly thermal demand per square meter for a whole year in different locations considered in the Spanish Building Code. These simulations also permitted the authors to study the risk of condensation and mold growth of the tested component under different climatic conditions.
Originality/value
The successful combination of the PASLINK method to calibrate the Wufi hygrothermal model is the main novelty of this research.
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Lukasz Czarnecki and Delfino Vargas-Chanes
The objective of this chapter is to analyze diabetes onset in Mexico in terms of work relations and family. The authors examined the impacts of diabetes on inequalities, practices…
Abstract
The objective of this chapter is to analyze diabetes onset in Mexico in terms of work relations and family. The authors examined the impacts of diabetes on inequalities, practices of violence among the Mexican population, analyzing gender relations in the context of having diabetes. Our research is based on mixed method approach. First, the authors conducted a survey among 110 diabetic persons in Chiapas and Nuevo León, two Mexican states from the North and the South. Results show that gender violence has impacts in both Mexican states despite of socioeconomical differences. Overall, diabetes is a complex social process that need to be analyzed on different social and socioeconomical levels. Gender violence is a particularly strong factor that has an impact on diabetes. The contribution of this research is based on understanding of diabetes onset as a social construction where gender violence, social cohesion and subjective wellbeing play a significant role in diabetes in the Mexican context. The outcomes of this research might have an impact on transformation of public health policy in Latin America and the Caribbean, from a medical approach to a sociocultural one in terms of diabetes as a chronic illness. Moreover, our results suggest that quality of life depends on the level of interacting within social groups, as diabetes is no longer a disease that affects an individual, but it is more a social phenomenon.
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Marco Antonio Cotrina Teatino, Jairo Jhonatan Marquina Araujo, Jose Nestor Mamani Quispe, Solio Marino Arango-Retamozo, Eusebio Antonio-Araujo, Eduardo Manuel Noriega-Vidal, Teofilo Donaires-Flores and Dominga Cano-Ccoa
The purpose of this study was to evaluate the influence of percussion and rotation pressure on the performance of drilling steels in different types of rock, specifically…
Abstract
Purpose
The purpose of this study was to evaluate the influence of percussion and rotation pressure on the performance of drilling steels in different types of rock, specifically sandstone and granodiorite, in an underground mine in Peru.
Design/methodology/approach
The study employed a controlled experimental design, varying percussion and rotation pressures under specific geological conditions. The performance metrics, including wear and efficiency of drilling steels, were analyzed using robust regression methods to address the non-normal distribution of data. Experiments were conducted under pressures of 130 and 160 bars for granodiorite and 80 and 35 for sandstone.
Findings
The results indicated that drilling steels experienced greater wear and efficiency in granodiorite compared to sandstone. In granodiorite, wear on the drill body reached 3.7 mm and 2.4 mm on the inserts, with an efficiency of 2.31 m/min. In sandstone, wear was 2.45 mm and 1.15 mm, with an efficiency of 1.92 m/min. In addition, drilling costs were lower in sandstone (0.35 US$/m) compared to granodiorite (0.40 US$/m). It was concluded that both percussion and rotation pressure significantly influence the wear and performance of drilling steels, increasing wear but improving efficiency with each 1-bar increment in pressure.
Originality/value
The originality of this study lies in its comprehensive analysis of how percussion and rotation pressure affect the wear and performance of drilling steels in two distinct rock types: sandstone and granodiorite. The application of robust multiple linear regression provides a deeper understanding of the relationship between pressure increments and drilling efficiency, offering valuable insights for optimizing drilling operations in underground mines.
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Eric Zanghi, Milton Brown Do Coutto Filho and Julio Cesar Stacchini de Souza
The current and modern electrical distribution networks, named smart grids (SGs), use advanced technologies to accomplish all the technical and nontechnical challenges naturally…
Abstract
Purpose
The current and modern electrical distribution networks, named smart grids (SGs), use advanced technologies to accomplish all the technical and nontechnical challenges naturally demanded by energy applications. Energy metering collecting is one of these challenges ranging from the most basic (i.e., visual assessment) to the expensive advanced metering infrastructure (AMI) using intelligent meters networks. The AMIs’ data acquisition and system monitoring environment require enhancing some routine tasks. This paper aims to propose a methodology that uses a distributed and sustainable approach to manage wide-range metering networks, focused on using current public or private telecommunication infrastructure, optimizing the implementation and operation, increasing reliability and decreasing costs.
Design/methodology/approach
Inspired by blockchain technology, a collaborative metering system architecture is conceived, managing massive data sets collected from the grid. The use of cryptography handles data integrity and security issues.
Findings
A robust proof-of-concept simulation results are presented concerning the resilience and performance of the proposed distributed remote metering system.
Originality/value
The methodology proposed in this work is an innovative AMI solution related to SGs. Regardless of the implementation, operation and maintenance of AMIs, the proposed solution is unique, using legacy and new technologies together in a reliable way.
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Julio Cesar Ferro De Guimarães, Eliana Andréa Severo, Domingos Fernandes Campos, Walid Abbas El-Aouar and Fabiana Lucena Bezerra de Azevedo
The organizations need to use strategic drivers such as market orientation (MO) and knowledge management (KM) for the development of product and process innovations, which can…
Abstract
Purpose
The organizations need to use strategic drivers such as market orientation (MO) and knowledge management (KM) for the development of product and process innovations, which can become a major source of sustainable competitive advantage (SCA). However, there is a gap in the use of these precepts, specifically in Brazilian companies. The purpose of this paper is to measure the relationship among MO, KM orientation, innovation (product and process), SCA and organizational performance (OP).
Design/methodology/approach
The research was developed through a survey in 1,072 companies from the industrial manufacturing, commerce and services activity sectors. For the analysis of data, the study used the structural equation modeling method.
Findings
This study contributes to managerial decisions in the choice of investment in strategic drivers and innovation, to obtain competitive advantages and economic gains. The results highlight that companies that use market information have formal structures to support innovation processes achieving more successful results.
Research limitations/implications
The framework proposed in this research can be used for different industries and segments.
Originality/value
The theoretical value of this paper is the contribution to the literature with the provision of a framework to analyze the strategic drivers, which are antecedents of innovation in different sectors of activity and in different sizes of companies. It is highlighted as managerial contributions, that the study identified evidence that organizations seek a superior OP to the competitor, creating competitive differentials that result in SCA.
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Inmaculada Diaz Soria, Asunción Blanco-Romero and Gemma Canoves I. Valiente
– The purpose of this paper is to focus on territorial dynamics generated by five music festivals in the Emporda region (Spain) and its tourism sector.
Abstract
Purpose
The purpose of this paper is to focus on territorial dynamics generated by five music festivals in the Emporda region (Spain) and its tourism sector.
Design/methodology/approach
Using qualitative methodology, 10 qualified informants were interviewed. Their answers were coded and analysed.
Findings
Territorial features favour the organisation of festivals. Promoters wish to offer some added value using local products. Festivals broadcast local identity to the world. Festivals’ features as tourist products explain how they are perceived as innovative.
Practical implications
These existing products are being further developed to meet cultural tourism requirements. This strategy is justified by the search for innovation in a fiercely global competitive context.
Originality/value
Current paper focuses on a present product and analyses its transformation: how a territory uses an old strategy in a new way generating future opportunities for tourism sector and local economies.