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Book part
Publication date: 26 November 2019

Sílvia Mendonça

The artistic object is born from an initial moment or state that triggers a creative or creation process. This beginning is described by many as a fleeting moment during which a…

Abstract

The artistic object is born from an initial moment or state that triggers a creative or creation process. This beginning is described by many as a fleeting moment during which a creative idea suddenly arises. I consider here that a creative vision is something that occurs in a very similar way, being able to capture a unified all like the finished artistic object, even if it amounts to a micro instant. This phenomenon uncovers a new form of capturing time and, therefore, a way to face temporality; the past, present and future are united and blend to originate new meanings.

The ‘vision of death’ is a concept that I explored in a musical composition, more specifically in the work Death Vision (On a January Day), in which performance becomes its possibility for representation and materialisation. The composition of the work arises from a personal vision of death, yet, to the performer, it is a construction of his or her own vision through musical interpretation. Be it in ‘vision’ as in ‘death’, some musical aspects connected with time stand out and communicate between themselves in a subtle manner. I will identify these moments through some examples of performances and representations in a cinematographic context, such as Wings of Desire by Wim Wenders (1987), Scena by Tomás Maia and André Maranha (2008) and Vai-e-vem by João César Monteiro (2003), where the visual plan is preponderant.

I will conclude that vision brings with it the possibility to intersect the real and give time back to what it has been missing: its unity. On the other hand, the vision of death in the musical performance finds its moment of fruition in linear time – in the possibility of openness and positivity that time itself gives.

Details

Music and Death: Interdisciplinary Readings and Perspectives
Type: Book
ISBN: 978-1-83867-945-3

Keywords

Article
Publication date: 24 February 2012

Helder Carvalho, Luís F. Silva, Ana Rocha and João Monteiro

The purpose of this paper is to develop and test control methods for real‐time automatic presser‐foot force control in industrial sewing machines. In this work, a closed‐loop…

Abstract

Purpose

The purpose of this paper is to develop and test control methods for real‐time automatic presser‐foot force control in industrial sewing machines. In this work, a closed‐loop controller that controls presser‐foot maximum vertical displacement is presented and compared to existing solutions that adjust force depending on sewing speed. Automatic force control can reduce problems such as stitch irregularity, stitch distortions and material damage, besides making material handling easier.

Design/methodology/approach

An electromagnetic force actuator was integrated in an industrial lockstitch machine. A computer‐based control system was designed implementing either speed‐variable force control, closed‐loop control, or emulating a traditional constant‐force system. Maximum presser‐foot displacement values were measured and analysed in relevant sewing situations, and seam quality was assessed.

Findings

Constant‐force control does not allow optimal force setting at all speeds. Speed‐variable force control is an improvement, but requires empirical setting of the speed‐force relation, not always assuring optimal operation. Closed‐loop control adapts force to the requirement of each sewing situation more precisely. Sewing quality is good and material handling is eased.

Research limitations/implications

The actuator has to be optimised regarding response time and maximum force. Some aspects in the behaviour of the control system and actuator have to be further studied.

Practical implications

The proposed control system enables the automatic setting and adaptation of force to all sewing situations, making material handling easier at low speeds without compromising feeding performance at high speed. The closed‐loop controller may be used as a teach‐in system for speed‐dependent control.

Originality/value

This is the first prototype of a closed‐loop control system for presser‐foot force on a lockstitch sewing machine and the first comparative study of control methods for presser‐foot force control.

Article
Publication date: 27 March 2009

Manuel Ferreira, Cristina Santos and Joao Monteiro

The purpose of this paper is to propose a set of techniques, in the domain of texture analysis, dedicated to the classification of industrial textures. One of the main purposes…

Abstract

Purpose

The purpose of this paper is to propose a set of techniques, in the domain of texture analysis, dedicated to the classification of industrial textures. One of the main purposes was to deal with a high diversity of textures, including structural and highly random patterns.

Design/methodology/approach

The global system includes a texture segmentation phase and a classification phase. The approach for image texture segmentation is based on features extracted from wavelets transform, fuzzy spectrum and interaction maps. The classification architecture uses a fuzzy grammar inference system.

Findings

The classifier uses the aggregation of features from the several segmentation techniques, resulting in high flexibility concerning the diversity of industrial textures. The resulted system allows on‐line learning of new textures. This approach avoids the need for a global re‐learning of the all textures each time a new texture is presented to the system.

Practical implications

These achievements demonstrate the practical value of the system, as it can be applied to different industrial sectors for quality control operations.

Originality/value

The global approach was integrated in a cork vision system, leading to an industrial prototype that has already been tested. Similarly, it was tested in a textile machine, for a specific fabric inspection, and gave results that corroborate the diversity of possible applications. The segmentation procedure reveals good performance that is indicated by high classification rates, revealing good perspectives for full industrialization.

Details

Sensor Review, vol. 29 no. 2
Type: Research Article
ISSN: 0260-2288

Keywords

Abstract

Details

Music and Death: Interdisciplinary Readings and Perspectives
Type: Book
ISBN: 978-1-83867-945-3

Article
Publication date: 9 January 2020

Patrícia Monteiro, João Guerreiro and Sandra Maria Correia Loureiro

Wine bottles compete for consumers’ attention in the shelf during the decisive moment of choice. This study aims to explore the role that visual attention to wine labels has on…

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Abstract

Purpose

Wine bottles compete for consumers’ attention in the shelf during the decisive moment of choice. This study aims to explore the role that visual attention to wine labels has on the purchase decision and the mediating role of quality perceptions and desire on such purchase behaviours. Wine awards and consumption situation are used as moderators..

Design/methodology/approach

The study was conducted in Portugal and 36 individuals participated in a 2 × 2 within subjects design (awarded/not awarded × self-consumption/social-consumption). For each scenario, individuals’ attention, perceptions of quality, desire and purchase intentions were recorded.

Findings

Data from eye-tracking shows that, during the purchase process, the amount of attention given to a bottle is determinant of individuals’ purchase intentions, a relationship that increases in significance for bottles with awards and for when consumers are buying wine for a consumption situation involving a social environment. In addition, both quality perceptions and desire are confirmed to positively influence wines’ purchase intentions.

Originality/value

By using an eye monitoring method, this paper brings new insights into the wine industry by highlighting the impact that wines’ labels and different consumption situations have on individuals’ attention and purchase intention. Wine producers and retailers may benefit from the insights provided by the current study to refine their communication strategies by either highlighting product characteristics and pictorial elements, as it is the case of the awards, or communicating about their products for different consumption situations.

Details

International Journal of Wine Business Research, vol. 32 no. 2
Type: Research Article
ISSN: 1751-1062

Keywords

Article
Publication date: 5 December 2022

Januário José Monteiro, Rogério João Lunkes and Fabricia Rosa

This study aims to analyze the influence of formal and informal controls on trust and individual creativity.

Abstract

Purpose

This study aims to analyze the influence of formal and informal controls on trust and individual creativity.

Design/methodology/approach

A survey was conducted with managers of companies listed in Brazil Stock Exchange (Brazil, Bolsa, Balcão-B3), and the final sample was 124 valid responses. The data were analyzed using structural equation modeling and fuzzy set qualitative comparative analysis (FsQCA).

Findings

The results show that the influence of informal controls (cultural and personnel controls) on individual creativity is greater than that of formal controls (action and results controls). It was also found that formal and informal controls facilitate social exchanges between managers by influencing trust. Moreover, the results confirmed the mediation of trust in the relationship between controls and individual creativity. FsQCA demonstrates that formal and informal controls are complemented and, when combined with trust, enable high individual creativity.

Originality/value

The findings contribute to the literature by demonstrating that the effective use of management controls generates greater trust and awakens creative skills in managers.

Details

Journal of Accounting & Organizational Change, vol. 19 no. 5
Type: Research Article
ISSN: 1832-5912

Keywords

Article
Publication date: 21 October 2013

Paulo Cezar Monteiro Lamim Filho, Jorge Nei Brito, Vinicius Augusto Diniz Silva and Robson Pederiva

The objective is the application of vibration analysis for the detection and diagnosis of low isolation between the stator coil wind and the voltage phase unbalance in induction…

Abstract

Purpose

The objective is the application of vibration analysis for the detection and diagnosis of low isolation between the stator coil wind and the voltage phase unbalance in induction motors with different numbers of poles. The purpose of this paper is to provide an approach for maintenance engineers for diagnosis electrical fault through the vibration analyses.

Design/methodology/approach

A detailed review of previous work carried out by some researchers and maintenance engineers in the area of machine fault detection is performed. By vibration analysis, the spectra were collected, which used to analyze the failure. Vibration spectra could detect particular characteristic for each fault in an initial condition, so the machine health can be preserved.

Findings

Results show the efficiency of the technique of vibration analysis and their relevance to detect and diagnose faults in different induction motors. In this way, it may be included in future predictive maintenance programs.

Practical implications

The paper presents a laboratory investigation carried out through an experimental set-up for the study of fault, mainly related to the stator winding inter-turn short circuit and voltage phase unbalance.

Originality/value

The main contribution of the paper has been the characterization of one more tool that makes the predictive maintenance process more efficient, effective and faster, increasing the reliability and availability of equipment.

Details

Journal of Quality in Maintenance Engineering, vol. 19 no. 4
Type: Research Article
ISSN: 1355-2511

Keywords

Article
Publication date: 8 August 2016

Paulo Cezar Monteiro Lamim Filho, Fabiano Bianchini Batista, Robson Pederiva and Vinicius Augusto Diniz Silva

The purpose of this paper is to introduce an algorithm based only on local extreme analysis of a time sequence to further the detection and diagnosis of inter-turn short circuits…

Abstract

Purpose

The purpose of this paper is to introduce an algorithm based only on local extreme analysis of a time sequence to further the detection and diagnosis of inter-turn short circuits and unbalanced voltage supply using vibration signals.

Design/methodology/approach

The upper and lower extreme envelopes from a modulated and oscillatory time sequence present a particular characteristic being of, theoretically, symmetrical versions with regard to amplitude reflection around the time axis. Thus, one may say that they carry the same characteristics in terms of waveforms and, consequently, frequency content. These envelopes can easily be built by an interpolation process of the local extremes, maximums and minimums, from the original time sequence. Similar to modulator signals, they contain more detailed and useful information about the required electrical fault frequencies.

Findings

Results show the efficiency of the proposed algorithm and its relevance to detecting and diagnosing faults in induction motors with the advantage of being a technique that is easy to implement in any computational code.

Practical implications

A laboratory investigation carried out through an experimental setup for the study of faults, mainly related to the stator winding inter-turn short circuit and voltage phase unbalance, is presented.

Originality/value

The main contribution of the work is the presentation of an alternative tool to demodulate signals which may be used in real applications like the detection of faults in three-phase induction machines.

Details

Journal of Quality in Maintenance Engineering, vol. 22 no. 3
Type: Research Article
ISSN: 1355-2511

Keywords

Article
Publication date: 10 January 2025

João Guilherme Alves Correa, Josivan Leite Alves, Aline Sacchi Homrich and Marly Monteiro de Carvalho

Investigate distinctive skills, encompassing Building Information Modeling (BIM skills, project management (PM) skills (PMSs), as well as strategic and operational skills (OSs…

Abstract

Purpose

Investigate distinctive skills, encompassing Building Information Modeling (BIM skills, project management (PM) skills (PMSs), as well as strategic and operational skills (OSs) in the architecture, engineering and construction (AEC) industry.

Design/methodology/approach

The research design adopts a quantitative survey-based approach, utilizing a partial least squares structural equation modeling (PLS-SEM).

Findings

The findings underscore a significant relationship between OSs and both BIM and PMSs, while also illuminating the relationship of strategic skills with both BIM and PMSs. However, intriguingly, the study reveals that although BIM skills and PMSs are indispensable, they lack a statistically significant relationship. Despite this, we have identified a pathway from BIM skills to operational and strategic skills that traverses through PMSs, exhibiting significant indirect effects.

Research limitations/implications

Our study employs cross-sectional data rather than longitudinal data, which hinders temporal interpretations of the associations between competence building for AEC professionals especially given that BIM skills are still in the early stages within AEC projects, particularly in Latin America. Therefore, a longitudinal study would offer deeper insights into potential causation, allowing for a more robust establishment of underlying associations. Additionally, future research endeavors should focus on capturing longitudinal data through case studies that explore perceptions and observations of the roles of BIM managers and project managers in project-based organizations.

Practical implications

Our model guides organizations to recognize the importance of BIM management skills as a pivotal role in the AEC industry, bridging operational and strategic levels. While project managers focus on tools that facilitate team and project integration, BIM managers enhance collaboration and communication across different disciplines within construction projects. This synthesis highlights the complementary roles of project managers and BIM managers in driving successful project outcomes, showcasing the synergy between their skill sets in achieving strategic objectives within the AEC industry. Furthermore, it underscores the critical role of indirect and cascading flows of influence among skill domains through multiple interconnected pathways.

Originality/value

Our study demonstrates that different types of skills are required to manage AEC projects. These skills are interconnected through direct and indirect pathways that warrant attention from academia. The theoretical contribution of the research model is clearly shown in the linking between PM and BIM in the AEC industry. Several scholars recognize BIM as innovative and that drives the success of civil construction projects; however, our study goes further in identifying the significant relationships among variables and the magnitude of their effects on strategic and OSs for BIM management and PM domain.

Details

Engineering, Construction and Architectural Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0969-9988

Keywords

Open Access
Article
Publication date: 27 March 2020

Celeste Eusébio, Maria João Carneiro, Mara Madaleno, Margarita Robaina, Vítor Rodrigues, Michael Russo, Hélder Relvas, Carla Gama, Myriam Lopes, Vania Seixas, Carlos Borrego and Alexandra Monteiro

Tourism may have important positive and negative economic, socio-cultural and environmental impacts. However, cultural and natural resources are also the base to the development…

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Abstract

Purpose

Tourism may have important positive and negative economic, socio-cultural and environmental impacts. However, cultural and natural resources are also the base to the development of competitive destinations and changes in these resources can have an important impact on tourism development. Despite the considerable literature regarding the impacts of tourism, a limited number of studies examine the impact of the environment on tourism, specifically the impact of air quality (AQ). Therefore, this paper aims to review what is known about the impact of AQ on tourism demand, analysing the different methods and approaches used, as well as the results obtained.

Design/methodology/approach

A systematic literature review method was used to examine the state of the art in this topic and identify research gaps and new research directions. Only 26 papers were identified that examine the impact of AQ on tourism demand.

Findings

The majority of the studies were carried out in China and investigate the impact of AQ on tourism from the perspective of tourism demand. Both global (tourism demand) and individual (tourist perceptions) approaches have been used to investigate the impact of AQ on tourism.

Originality/value

This is the first systematic literature review on the impact of outdoor AQ on tourism demand. Moreover, this paper analyses the methods and approaches that have been used in the literature to examine the impact of outdoor AQ on tourism demand. The paper ends with a discussion on the identified research gaps concerning the influence of AQ on tourism development.

Details

Journal of Tourism Futures, vol. 7 no. 1
Type: Research Article
ISSN: 2055-5911

Keywords

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