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Rectangular conductors play an important role in planar transmission line structures, multiconductor transmission lines, in power transmission and distribution systems, LCL filters, transformers, industrial busbars, MEMs devices, among many others. The precise determination of the inductance of such conductors is necessary for their design and optimization, but no explicit solution for the AC resistance and internal inductances per-unit length of a linear conductor with a rectangular cross-section has been found, so numerical methods must be used. The purpose of this paper is to introduce the use of a novel numerical technique, the proper generalized decomposition (PGD), for the calculation of DC and AC internal inductances of rectangular conductors.

The PGD approach is used to obtain numerically the internal inductance of a conductor with circular cross-section and with rectangular cross-section, both under DC and AC conditions, using a separated representation of the magnetic vector potential in a 2D domain. The results are compared with the analytical and approximate expressions available in the technical literature, with an excellent concordance.

The PGD uses simple one-dimensional meshes, one per dimension, so the use of computational resources is very low, and the simulation speed is very high. Besides, the application of the PGD to conductors with rectangular cross-section is particularly advantageous, because rectangular shapes can be represented with a very few number of independent terms, which makes the code very simple and compact. Finally, a key advantage of the PGD is that some parameters of the numerical model can be considered as additional dimensions. In this paper, the frequency has been considered as an additional dimension, and the internal inductance of a rectangular conductor has been computed for the whole range of frequencies desired using a single numerical simulation.

The proposed approach may be applied to the optimization of electrical conductors used in power systems, to solve EMC problems, to the evaluation of partial inductances of wires, etc. Nevertheless, it cannot be applied, as presented in this work, to 3D complex shapes, as, for example, an arrangement of layers of helically stranded wires.

The PGD is a promising new numerical procedure that has been applied successfully in different fields. In this paper, this novel technique is applied to find the DC and AC internal inductance of a conductor with rectangular cross-section, using very dense and large one-dimensional meshes. The proposed method requires very limited memory resources, is very fast, can be programmed using a very simple code, and gives the value of the AC inductance for a complete range of frequencies in a single simulation. The proposed approach can be extended to arbitrary conductor shapes and complex multiconductor lines to further exploit the advantages of the PGD.

The purpose of this paper is to describe numerical investigations focused on the reduction of separation and the aerodynamic enhancement of wind turbine blades by a rod vortex generator (RVG).

A flow modelling approach through the use of a Reynolds-averaged Navier–Stokes solver is used. The numerical tools are validated with experimental data for the NREL Phase VI rotor and the S809 aerofoil. The effect of rod vortex generator’s (RVG) configuration on aerofoil aerodynamic performance, flow structure and separation is analysed. RVGs’ chordwise locations and spanwise distance are considered, and the optimum configuration of the RVG is applied to the wind turbine rotor.

Results show that streamwise vortices created by RVGs lead to modification of flow structure in boundary layer. As a result, the implementation of RVGs on aerofoil has proven to decrease the flow separation and enhance the aerodynamic performance of aerofoils. The effect on flow structure and aerodynamic performance has shown to be dependent on dimensions, chordwise location and spanwise distribution of rods. The implementation of devices with the optimum configuration has shown to increase aerodynamic performance and to significantly reduce separation for selected conditions. Application of rods to the wind turbine rotor has proven to avoid the spanwise penetration of flow separation where applied, leading to reduction of flow separation and to aerodynamic enhancement.

The proposed RVGs have shown potential to enhance the aerodynamic performance of wind turbine rotors and profiles, making devices an alternative solution to the classical vortex generators for wind turbine applications.

This study aims to focus on analysing the impact of green human resource management (GHRM) on the green performance (GP) of Spanish wineries, as well as the mediating effect of employee well-being (EW) on this linkage. In addition, age, size and membership in a protected designation of origin are introduced as control variables to increase the precision of the cause-effect relationships examined.

The study proposes a conceptual model based on previous studies, which is tested using structural equations partial least squares structural equation modelling with data collected from 196 Spanish wineries between September 2022 and January 2023.

The findings of the research reveal the existence of a positive and significant relationship between the GHRM development and the GP of Spanish wineries, as well as the partial mediation of EW in this association.

The uniqueness and significance of this study can be attributed to several crucial factors. First, it enhances the understanding and knowledge regarding the advantages associated with GHRM development. Second, no prior research has conducted a comprehensive study on GHRM as a catalyst for GP within the context of Spanish wineries. Third, to the best of the authors’ knowledge, no previous study has analyzed the mediating role of EW as a mediator in the relationship between GHRM and GP of wineries.

The aim of this research is to carry out a bibliometric analysis of the academic literature indexed in the Core Collection of the Web of Science (WoS) on happiness management in companies during the period between 2000 and 2022. In particular, the variables used to keep the scientific production under study are as follows: (1) time evolution, (2) publication format, (3) categories, (4) authors, (5) institutions, (6) journals, (7) publishers and (8) countries.

To carry out the analysis, the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology is followed, using the WoS database for data collection and VosViewer to create the network maps.

The results show, among other aspects, the accelerated growth rate of the scientific production studied since 2017, the use of publications in articles as the main format for disseminating research results, the relevance of the business category as the area of study in which most of the scientific production examined falls as well as the predominant role of the publishers Emerald, Springer and Elsevier in the publication of scientific documents on the subject under analysis.

There are different reasons that justify the originality of the study. First, the research advances the understanding of the academic literature on happiness management at the corporate level. Second, to the best of the authors' knowledge, there are no previous bibliometric studies that have addressed this topic. Third, the research analyses the literature under analysis from the first record to the year 2022, assuming an update of the previous narrative and systematic reviews carried out on the subject studied.

This research focuses on analyzing the impact of Green Intellectual Capital (GIC) on the Environmental Performance (EP) of Spanish wineries, as well as the mediating effect of Green Ambidexterity Innovation (GAI) on the main relationship posed (GIC–EP), and the moderating effect of Top Management Environmental Awareness (TMEA) on the GAI–EP link. In addition, age, size and size and membership in a Protected Designation of Origin (PDO) to increase the accuracy of the cause–effect relationships examined.

The study proposes a conceptual model based on previous studies, which is tested using structural equations (PLS-SEM) with data collected from 196 Spanish wineries between September 2022 and January 2023.

The results of the research reveal the existence of a positive and significant relationship between the development of GIC and EP of Spanish wineries, as well as the partial mediation of GAI in this link and the positive moderation of TMEA in the GAI–EP relationship.

The originality of the study is explained by several factors. First, the study pioneered the exploration of TMEA as a moderator of the relationship between GAI and EP, allowing such analysis to improve understanding of the dynamic interaction between innovation and environmental management. Second, to the best of the authors' knowledge, there are no preceding studies that have previously proposed the theoretical model presented in this research, thus providing new scientific knowledge on the intellectual capital field. Third, the contextualization of the study in the wine sector, traditionally perceived as little knowledge-intensive, contributes significantly to the existing body of scientific knowledge on the environmental management of wineries, given that it allows the identification of the catalysing variables of EP in the Spanish wine context.

The purpose of this study is to analyze the effect of wine tourism on the economic, social and environmental performance, i.e. the sustainable performance, of Spanish wineries. In addition, age, size and membership in the protected designation of origin are introduced as control variables to increase the precision of the cause-effect relationships analyzed.

A conceptual model is proposed, which is tested by means of structural equation modeling based on data from a survey of 202 Spanish wineries.

The results indicate the existence of a positive and significant link between wine tourism activities and the three performance typologies analyzed in the Spanish wine context.

The study contributes to the academic literature on wine tourism in a remarkable way, as, to the best of the authors’ knowledge, there is no previous literature that has addressed the effect of wine tourism on the sustainable performance of Spanish wineries, making the study useful for both academics and wine professionals who are considering the implementation or development of this typology of tourism in their facilities.

This research focuses on analysing the effect of wine tourism on green product and process innovations developed by Spanish wineries. In addition, age, size and membership in a protected designation of origin (PDO) are introduced as control variables to increase the precision of the cause–effect relationship analysed.

The study proposes a conceptual model based on previous studies, which is tested using structural equations (partial least squares structural equation modelling [PLS-SEM]) with data collected from 202 Spanish wineries.

The research results show that wine tourism activity has a positive and significant influence on green product and process innovation.

The research contributes to the academic literature in several ways. First, the study advances knowledge and understanding of the benefits generated by wine tourism. Second, the research contributes to the literature that analyses the wine tourism–sustainability link, since it is predicted that this type of tourism can increase the capacity for green innovation. Third, to the best of the authors’ knowledge, there is no previous research that has analysed wine tourism as a catalytic variable for green innovation. Fourth, the proposed theoretical model has not been previously addressed in the academic literature, so the study represents an important advance in scientific knowledge.

The research focuses on analysing the effect of wine tourism (WT) on the green performance (GP) of Spanish wineries, as well as the mediating role of green intellectual capital (GIC) and the moderating effect of circular economy practices (CEPs) developed by wineries in this main relationship. In addition, age, size and protected designation of origin (PDO) membership are introduced as control variables to increase the precision of the cause–effect relationships analysed.

A conceptual model is proposed through the literature review carried out and then verified through structural equation modelling (PLS-SEM) based on data obtained from a survey of 202 Spanish wineries between September 2021 and January 2022.

The results of the study show that WT activity has a positive and significant effect on the GP of wineries, also demonstrating the mediating effect of GIC and the moderating role of CEPs in this relationship.

The study contributes to the academic literature in several ways. First, to the best of our knowledge, no previous study has addressed the impact of WT on the set of wineries' ecological intangibles. Second, to the authors’ knowledge, no previous study has analysed the mediating effect of GIC on the WT-GP relationship. Third, there is no previous attempt to deal with the moderating role of CEPs in the main relationship under analysis. Fourth, the proposed theoretical model has not been previously addressed in the academic literature.

Taking a resource-based view, the authors analyse the effect of high-performance work practices (HPWPs) on the performance of small- and medium-sized enterprises (SMEs) under conditions of environmental hostility, and consider how this relationship is influenced by managers' embeddedness in social networks. The authors argue that high perceived levels of environmental hostility strengthen the strategic value of HPWPs in SMEs, whereas high levels of manager embeddedness in social networks weaken this contingent relationship.

These hypotheses were tested in a sample of 249 SMEs, from two Spanish industries related to food production, using linear regression with two- and three-way interaction effects.

The study results show that the implementation of HPWPs benefits SMEs' performance in hostile environments. However, the dark side of managers' social capital could undermine any such benefit, especially if there is a high degree of network closure. In hostile contexts, such closure appears to limit managers' willingness to depart from the common practice of reducing investment in human resources.

Contrary to predominant beliefs that managers facing economic adversity should reduce costs by cutting investment in personnel development, this study indicates that supporting HPWPs enhances a firm's objective financial performance.

This study advances our understanding of the specific conditions under which HPWPs sustain SME performance. It also introduces the dark side of managers' social capital into considerations of this relationship. The study findings provide new insights that are counterintuitive to business practice.

The purpose of this study is to focus on analyzing how the set of green intangibles held by wineries and their members, i.e. green intellectual capital (GIC), affects green innovation performance (GIP). Specifically, the study aims to investigate how GIP is influenced by GIC through the mediating role of the variable knowledge management (KM) and corporate social responsibility (CSR).

The study proposes a conceptual model, based on previous studies, which is tested through structural equations (PLS-SEM) with data collected from 202 Spanish wineries.

The results of the research indicate that there is a positive and significant relationship between GIC and GIP. Furthermore, CSR and KM partially mediate the relationship between these two variables, playing a key role in the environmental management of wineries.

The present research, therefore, contributes to the literature in several ways. First, the study advances the understanding of GIC as well as its link with GIP. Second, the research aims to fill the gap in the literature through the study of CSR and KM as mediating variables in such a link. Third, to the best of the authors’ knowledge, the model proposed has not been previously addressed in the academic literature, thus representing an advance in scientific knowledge. Fourthly, no research has addressed the study of environmental intangibles in the wine industry, with this research, therefore, being a pioneer in contextualizing the study of GIC in this increasingly knowledge-intensive industry.