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Article
Publication date: 1 December 2006

Alejandro M. Suárez, Manuel A. Duarte‐Mermoud and Danilo F. Bassi

To develop a new predictive control scheme based on neural networks for linear and non‐linear dynamical systems.

Abstract

Purpose

To develop a new predictive control scheme based on neural networks for linear and non‐linear dynamical systems.

Design/methodology/approach

The approach relies on three different multilayer neural networks using input‐output information with delays. One NN is used to identify the process under control, the other is used to predict the future values of the control error and finally the third one is used to compute the magnitude of the control input to be applied to the plant.

Findings

This scheme has been tested by controlling discrete‐time SISO and MIMO processes already known in the control literature and the results have been compared with other control approaches with no predictive effects. Transient behavior of the new algorithm, as well as the steady state one, are observed and analyzed in each case studied. Also, online and offline neural network training are compared for the proposed scheme.

Research limitations/implications

The theoretical proof of stability of the proposed scheme still remains to be studied. Conditions under which non‐linear plants together with the proposed controller present a stable behavior have to be derived.

Practical implications

The main advantage of the proposed method is that the predictive effect allows to suitable control complex non‐linear process, eliminating oscillations during the transient response. This will be useful for control engineers to control complex industrial plants.

Originality/value

This general approach is based on predicting the future control errors through a predictive neural network, taking advantage of the NN characteristics to approximate any kind of relationship. The advantage of this predictive scheme is that the knowledge of the future reference values is not needed, since the information used to train the predictive NN is based on present and past values of the control error. Since the plant parameters are unknown, the identification NN is used to back‐propagate the control error from the output of the plant to the output of the controller. The weights of the controller NN are adjusted so that the present and future values of the control error are minimized.

Details

Kybernetes, vol. 35 no. 10
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 21 December 2023

Alejandro Ríos-Hernández, Joel Mendoza-Gómez and Luz María Valdez–de la Rosa

This study empirically tests a model of human capital (HC) factors affecting the organisational competitiveness (OC) of automotive parts suppliers in the Industry 4.0 framework…

Abstract

Purpose

This study empirically tests a model of human capital (HC) factors affecting the organisational competitiveness (OC) of automotive parts suppliers in the Industry 4.0 framework, including concepts such as Toyota Kata (TK), Kaizen and Quality 4.0, during the coronavirus disease 2019 pandemic.

Design/methodology/approach

An instrument was created to measure emotional intelligence (EI) and analytical skill (AS) as input variables and OC as the output variable. The instrument was distributed electronically to Tier 1 non-technical employees in Nuevo León and Querétaro, México. A total of 195 surveys were obtained. The instrument used stepwise multiple linear regression.

Findings

This study proposes a model to strengthen the OC of Tier 1 automotive parts supply industry from the perspective of HC factors. Furthermore, it is shown that EI and AS have a positive and significant impact on OC.

Practical implications

From an HC perspective, this study provides a useful basis to improve OC for researchers, industry experts and managers at different levels of the automotive industry, including the triple helix (academia, industry and the government).

Originality/value

No studies simultaneously test the relationship of EI and AS to OC; therefore, this study fills a gap in the literature. Furthermore, the study explored the literature on individual Kaizen (IK) and TK, leading to a contrast between the definitions of EI and AS. Finally, for EI, a reference to motivation was found in the IK. In the case of AS, an orientation to ability of problem solving was found in TK.

Article
Publication date: 1 June 2006

Andrea Martin-Chavez

After more than five years of teaching Open Building to students in the last year of their architectural training we have learned one thing: it is easier to master the Open…

Abstract

After more than five years of teaching Open Building to students in the last year of their architectural training we have learned one thing: it is easier to master the Open Building methodologies if we first apply some of its main ideas to extract the urban and architectural rules from the reality and only afterwards, students have an easier time learning and applying the methodology to make new OB design proposals. To achieve this we work either in downtown Mexico City or in other Mexican colonial cities where the historical urban fabric provides an easier reading of the urban and architectural typologies.

In this article I am going to talk about our last year's teaching experience and the results we achieved. There are three main objectives to be met in this last year of architectural training. The main one is to deal with socially relevant problems that involve real communities. The second one is that the teaching resembles the practice of architecture as much as possible. And one that we have added to the curricula is to train students to understand, learn and apply OB ideas in their urban and architectural work.

Architectural competitions have turned into important part of the practice. For that reason we encourage students to enter at least one of the multiple options that occur during the year. This time there was the opportunity to enter a competition aimed for students organized by ARQUINE (a well known international trimester architectural publication). The competition objective was to design studios and housing for art students in an empty lot in historical downtown Mexico City.

To achieve the objectives of the course, as well as to participate in the competition, we divided the course in three parts. In the first part students made an urban diagnosis of the area, a site analysis and a design proposal for the competition. In the second part they studied traditional housing vecindades as well as the families living in that particular area. They applied the support idea to these typologies to get acquainted with the generals of the method. In the third part they studied the methodology thoroughly to be able to design a support building to relocate the studied families. In the end, each student designed a different support building in an empty lot nearby to the studied area.

In our experience, students are very enthusiastic and responsible when working with users and applying OB ideas. Most students from this last generation are now working in housing related agencies. Two of these students work for the Mexican Architectural Association and recently promoted a new competition jointly with the local government Program of Housing Improvement. The competition goal is to design incremental housing in the periphery or in downtown areas, avoiding prototypes. They are strongly supporting the use of OB ideas for the competition and this year's students will participate in it.

Details

Open House International, vol. 31 no. 2
Type: Research Article
ISSN: 0168-2601

Keywords

Article
Publication date: 25 February 2021

Néstor F. Ayala, Paolo Gaiardelli, Giuditta Pezzotta, Marie Anne Le Dain and Alejandro G. Frank

The purpose of this study is to analyse the effect of different forms of service supplier involvement on the service business dimensions necessary for servitisation and on the…

Abstract

Purpose

The purpose of this study is to analyse the effect of different forms of service supplier involvement on the service business dimensions necessary for servitisation and on the resulting servitisation performance.

Design/methodology/approach

Three different configurations of service supplier involvement are considered in this study: black box (service design and execution driven by the service supplier), grey box (joint service design) and white box (service design driven by the product firm). The study analyses their contribution by means of a cross-sectional quantitative survey with 104 Brazilian and Italian firms using multivariate analysis of variance.

Findings

Companies that adopted the grey box configuration presented the best results in servitisation. White and black box may offer different benefits depending on the service business dimension that the company chooses to emphasise.

Originality/value

The results show which type of service supplier involvement is more effective for servitisation. The empirical data demonstrate that a joint service design (grey box involvement) is the best approach, but the paper discusses limitations for its implementation and alternatives regarding the two other types of service supplier involvement. The findings contribute to the discussion on the role of service suppliers in servitisation and provide empirical evidence to support operations managers in deciding on how to organise their service supply chain when aiming for servitisation.

Details

Journal of Manufacturing Technology Management, vol. 32 no. 5
Type: Research Article
ISSN: 1741-038X

Keywords

Article
Publication date: 25 November 2020

Guilherme Tortorella, Gopalakrishnan Narayanamurthy, Moacir Godinho Filho, Alberto Portioli Staudacher and Alejandro Francisco Mac Cawley

This paper aims at examining the impact that COVID-19 pandemic and its related work implications have on the relationship between lean implementation and service performance.

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Abstract

Purpose

This paper aims at examining the impact that COVID-19 pandemic and its related work implications have on the relationship between lean implementation and service performance.

Design/methodology/approach

The author surveyed service organizations that have been implementing lean for at least two years and remotely maintained their activities during the COVID-19 outbreak. Multivariate data techniques were applied to analyze the dataset. This study was grounded on sociotechnical systems theory.

Findings

The findings indicate that organizations that have been implementing lean services more extensively are also more likely to benefit from the effects that the COVID-19 had on work environments, especially in the case of home office. Nevertheless, social distancing does not appear to mediate the effects of lean services on both quality and delivery performances.

Originality/value

Since the pandemic is a recent phenomenon with unprecedented effects, this research is an initial effort to determine the effect the pandemic has on lean implementation and services' performance, providing both theoretical and practical contributions to the field.

Details

Journal of Service Theory and Practice, vol. 31 no. 2
Type: Research Article
ISSN: 2055-6225

Keywords

Book part
Publication date: 23 June 2022

Marisol Morales Rodríguez

The objective of this study focuses on the characterization of the Latin American entrepreneurial profile from a psychological perspective. In order to do this, a journey through…

Abstract

The objective of this study focuses on the characterization of the Latin American entrepreneurial profile from a psychological perspective. In order to do this, a journey through time was carried out in the study of the entrepreneurial subject, from the great classics to the contemporary era, the era of knowledge, innovation, technology, and revolution. In the Latin American context, the role of the entrepreneur is limited due to vulnerable institutions, corruption, populism, and socioeconomic inequity. However, the new information and communication technologies constitute an ideal route for growth in the region. The fundamental element is the psychological profile of the entrepreneur, which is made up of a set of personal characteristics, among which innovation, achievement motivation, self-efficacy, moderate propensity for risk, creativity, perseverance, proactivity, flexibility, locus of control stand out, internal, adaptability, responsibility, ability to recognize opportunities, autonomy, commitment, handling problems and managerial skills. Finally, case studies from countries such as Mexico, Peru, and Chile are presented. It is a documentary study which reflects that Latin American entrepreneurs share the same psychological attributes as those who live in developed countries. However, obstacles arising from the lack of environment and public policies are imposed on entrepreneurial activity. The culture of a country and the formative role of education can become limiting or enhancing factors; therefore, it is necessary to bet on beliefs and convictions attached to innovation, which strengthen the psychological attributes of the entrepreneurial spirit.

Details

The Emerald Handbook of Entrepreneurship in Latin America
Type: Book
ISBN: 978-1-80071-955-2

Keywords

Article
Publication date: 7 August 2018

Néstor F. Ayala, Wolfgang Gerstlberger and Alejandro G. Frank

The purpose of this paper is to study service innovation in product companies (servitization) by considering the relationship (moderation) between product companies and service…

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Abstract

Purpose

The purpose of this paper is to study service innovation in product companies (servitization) by considering the relationship (moderation) between product companies and service suppliers.

Design/methodology/approach

Using a relational view of the firm, the authors propose that there are three main business dimensions that product companies have to manage in servitization and that the support of service suppliers can moderate the effects of these dimensions on the benefits obtained from the product–service system (PSS) delivered. To test these hypotheses, the authors perform a cross-sectional quantitative survey in 104 Brazilian and Italian product companies.

Findings

The findings show that the three business dimensions are important for servitization while there is a trade-off decision regarding service suppliers’ support since suppliers act differently depending on the PSS orientation (product- or service-oriented).

Research limitations/implications

The work is limited to the analysis of what should change in a company during servitization and the impact of supplier’s support. Further research is needed to complement this study by analyzing the process and context of the organizational change.

Practical implications

The research contributes an understanding about how the benefits practitioners can obtain from servitization are strongly influenced by the support of service suppliers and how this influence depends on the PSS orientation of the product company.

Originality/value

This is one of the first quantitative studies to provide evidence of how service suppliers’ involvement affects different servitization business dimensions and the obtained benefits for both product- and service-oriented outputs.

Details

International Journal of Operations & Production Management, vol. 39 no. 1
Type: Research Article
ISSN: 0144-3577

Keywords

Article
Publication date: 6 July 2012

José David Vicente‐Lorente and José Ángel Zúñiga‐Vicente

The purpose of this paper is to examine the role played by different types of firm innovation on employee downsizing. Drawing on economic and management views, the authors aims to…

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Abstract

Purpose

The purpose of this paper is to examine the role played by different types of firm innovation on employee downsizing. Drawing on economic and management views, the authors aims to assess the potential positive or negative effect of different types of processes (i.e. new technology via the introduction of new equipment as well as new methods of organizing the workforce) and product (i.e. number of innovations) innovations on employee downsizing.

Design/methodology/approach

The empirical setting is a sample of Spanish manufacturing firms over the period 1994‐2006. The authors employ probit models for panel data as an empirical tool.

Findings

The results show a negative and significant effect of process innovations associated with acquiring and deploying new production equipment and product‐oriented innovations on the probability of carrying out important reductions in workforce. However, a positive and significant effect is found when process innovations are linked to the adoption of new methods of organizing the workforce.

Practical implications

Managers might play a significant role in employment creation, especially when they carry out process innovations related to the acquisition of complementary production assets (i.e. new equipment) and market highly innovative products. Policy makers might contribute to diminish the potential number of employees affected by firms’ downsizing strategies by designing, for example, public subsidies systems that deliberately prompt both types of innovations.

Originality/value

The authors make an effort to provide alternative explanations about why firms downsize, as they analyze different types of process and product innovations whose effects on employment (and, thus, downsizing) do not seem to be clear. Moreover, the paper furthers one's understanding of the effect of firm innovation by focusing on the potential effect of one type of process innovation which has not been examined until now: the adoption and implementation of new methods of organizing the workforce owing to new technology.

Details

International Journal of Manpower, vol. 33 no. 4
Type: Research Article
ISSN: 0143-7720

Keywords

Book part
Publication date: 24 October 2013

Arturo J. Galindo, Alejandro Izquierdo and Liliana Rojas-Suarez

This chapter explores the impact of international financial integration on credit markets in Latin America, using a cross-country dataset covering 17 countries between 1996 and…

Abstract

This chapter explores the impact of international financial integration on credit markets in Latin America, using a cross-country dataset covering 17 countries between 1996 and 2008. It is found that financial integration amplifies the impact of international financial shocks on aggregate credit and interest rate fluctuations. Nonetheless, the net impact of integration on deepening credit markets dominates for the large majority of states of nature. The chapter also uses a detailed bank-level dataset that covers more than 500 banks for a similar time period to explore the role of financial integration – captured through the participation of foreign banks – in propagating external shocks. It is found that interest rates charged and loans supplied by foreign-owned banks respond more to external financial shocks than those supplied by domestically owned banks. This does not hold for all foreign banks. Spanish banks in the sample behave more like domestic banks and do not amplify the impact of foreign shocks on credit and interest rates.

Details

Global Banking, Financial Markets and Crises
Type: Book
ISBN: 978-1-78350-170-0

Keywords

Article
Publication date: 26 December 2023

Guilherme Tortorella, Anupama Prashar, Jiju Antony, Roberto Vassolo, Alejandro Mac Cawley, Rodrigo Peimbert Garcia and Daniel Luiz de Mattos Nascimento

This paper aims to examine the relationship between the implementation of soft lean practices and organizational resilience development in the service sector.

Abstract

Purpose

This paper aims to examine the relationship between the implementation of soft lean practices and organizational resilience development in the service sector.

Design/methodology/approach

A mixed-methods explanatory design that relied on two sequential and complementary phases was adopted. In the first phase, a quantitative analysis was performed based on data collected from practitioners from service organizations, allowing the identification of the significance of this relationship. In the second phase, the authors used semi-structured interviews with experts to qualitatively assess how this relationship occurs.

Findings

Findings indicated that soft lean practices are positively associated with organizational resilience, although the extent of their relationships varies depending on the resilience ability under analysis. Interviews with experts also provided specific details on how such relationships occur, adding insights to the numerical results.

Originality/value

This study provides a deeper understanding of the implications of lean management, specifically concerning the support of soft lean practices to develop organizational resilience. Additionally, the identification of this relationship (and how it occurs) allows service organizations to deploy human-related strategies to promote broader adoption of certain soft lean practices. As socio-cultural changes are usually time-consuming, anticipating these organizational resilience needs may result in competitive advantages in the face of disruptive events.

Details

Management Decision, vol. 62 no. 4
Type: Research Article
ISSN: 0025-1747

Keywords

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