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Open Access
Article
Publication date: 22 June 2022

Mo He, Xiaogang Wang and Naigang Cui

The purpose of this paper is to present a high accuracy path following method for low-cost fixed-wing UAVs.

Abstract

Purpose

The purpose of this paper is to present a high accuracy path following method for low-cost fixed-wing UAVs.

Design/methodology/approach

The original vector field (VF) algorithm is condensed. A spatial integration mechanism is added to the existing VF and nonlinear guidance law, aiming to decrease steady-state cross-track-error and cope with long-term disturbance.

Findings

Numerical simulations show the proposed method could diminish steady-state cross-track-error effectively. Test flights show the proposed method is applicable on low-cost fixed-wing UAVs.

Practical implications

The path following accuracy shown in simulations and test flights indicates the proposed method could be deployed in scenarios including inflight rendezvous, formation, trafficway take-off and landing.

Originality/value

This paper provides an improved high-accuracy path following method for low-cost fixed-wing UAVs.

Details

Aircraft Engineering and Aerospace Technology, vol. 94 no. 11
Type: Research Article
ISSN: 1748-8842

Keywords

Open Access
Article
Publication date: 19 March 2021

Flavia Braga Chinelato, Cid Gonçalves Filho and Clodoaldo Lopes Nizza Júnior

Salesperson performance is accepted as a relevant factor of retailing success. However, scarce studies reveal the relationship between sales performance and brand relationship…

3234

Abstract

Purpose

Salesperson performance is accepted as a relevant factor of retailing success. However, scarce studies reveal the relationship between sales performance and brand relationship. The purpose of this study is both, from one side, to empirically demonstrate the impact of salesperson brand attachment (SBA) on sales performance and, on the other side, to identify the mediators of this relationship in small retailing.

Design/methodology/approach

A survey was conducted with a sample of 206 small retailers from different sectors of an emerging country. The proposed model was tested using partial least squares–structural equation modeling (PLS-SEM) in SmartPLS3.

Findings

The results demonstrated that SBA is relevant to driving sales performance through two relevant paths – one following SBA–satisfaction–performance and one path following the SBA–commitment–performance. The model was able to explain 63% of the outcome performance.

Practical implications

Regarding small retailers, where the owners, employees and managers have higher levels of interaction than the large national retail chains, the marketing executives must invest in improving the attachment to the brand and create emotional bonds and cognition between marketers and the brand. They must develop strategies to promote job satisfaction and organizational commitment because they determine performance.

Originality/value

Despite the relevance of small businesses for economies worldwide and the importance of salesperson brand relationships, no study has been developed to demonstrate the impacts of such relationships on salesperson performance in retailing. Furthermore, in addition to the central role of organizational commitment in the sales research, to the best of the authors’ knowledge, this is the first study to explore how to mediate the relationship between brand attachment and sales performance.

Propósito

El rendimiento del vendedor se acepta como un factor relevante para el éxito del comercio minorista. Sin embargo, los estudios que revelan la relación entre el resultado de las ventas y la relación con la marca son escasos. El propósito de este estudio es, por un lado, demostrar empíricamente el impacto del apego a la marca del vendedor (SBA) en el resultado de las ventas y, por otro lado, identificar los mediadores de esta relación en el comercio minorista.

Diseño/metodología/enfoque

Se realizó una encuesta con una muestra de 206 vendedores de pequeños minoristas provenientes de diferentes sectores de un país emergente. El modelo estructural se analizó mediante ecuaciones estructurales basada en mínimos cuadrados (PLS-SEM) utilizando SmartPLS3.

Hallazgos

Los resultados mostraron que el SBA es esencial para impulsar el resultado de las ventas a través de dos caminos relevantes: uno siguiendo el SBA-satisfacción-rendimiento y la otra dirección siguiendo el SBA-compromiso-rendimiento. El modelo fue capaz de explicar el 63% del rendimiento.

Implicaciones prácticas

Con respecto a los pequeños minoristas, donde los propietarios, empleados y gerentes tienen niveles más altos de interacción que las grandes cadenas minoristas nacionales, los ejecutivos de marketing deben invertir en mejorar el apego a la marca y crear vínculos emocionales y cognitivos entre los vendedores y la marca. Deben desarrollar estrategias para promover la satisfacción laboral y el compromiso organizacional ya que determinan el rendimiento.

Originalidad/valor

A pesar de la relevancia de las pequeñas empresas para las economías de todo el mundo y la importancia de las relaciones de marca en los vendedores, no se ha desarrollado ningún estudio para demostrar los impactos de tales relaciones en el rendimiento de los vendedores en el comercio minorista. Además, aparte del papel central del compromiso organizacional en la investigación en ventas, este es el primer estudio que explora cómo media la relación entre el apego a la marca y el resultado de las ventas.

Open Access
Article
Publication date: 17 July 2017

Francisco J. García-Rodríguez, Esperanza Gil-Soto, Inés Ruiz-Rosa and Desiderio Gutiérrez-Taño

The purpose of this paper is to analyze the role that the sociocultural, family and university environment play in the entrepreneurial intention of young people in a peripheral…

4128

Abstract

Purpose

The purpose of this paper is to analyze the role that the sociocultural, family and university environment play in the entrepreneurial intention of young people in a peripheral and less innovative region.

Design/methodology/approach

The authors adopted the perspective of the theory of planned behavior and made an empirical study with a sample of 1,064 Spanish university students who voluntarily participated in the GUESSS Project answering an online questionnaire. A methodology based on structural equations was used employing the partial least squares structural equation modeling estimation technique.

Findings

The results show that the university environment directly influences attitude, self-confidence and motivation, and indirectly the students’ entrepreneurial intention. The social context also exerts a weak direct influence on the perceived attitudes or desires toward the option to start a business and indirectly on the intention.

Originality/value

The main contribution of this paper seems to confirm what previous literature highlighted in the terms of regional specificities on the link between innovation systems, the impact of entrepreneurial potential and economic development. In this sense, the university context can play an important role in generating improvements in the entrepreneurial intention’s antecedents of young people with greater potential for innovation in peripheral regions. Therefore, when it comes to defining policies to improve entrepreneurship in these regions, it seems that the establishment of entrepreneurship education and motivation programs in universities is a very effective tool to increase perceived attitude toward the option to start a new business.

Details

European Journal of Management and Business Economics, vol. 26 no. 2
Type: Research Article
ISSN: 2444-8451

Keywords

Open Access
Article
Publication date: 25 October 2021

Cong Li, YunFeng Xie, Gang Wang, XianFeng Zeng and Hui Jing

This paper studies the lateral stability regulation of intelligent electric vehicle (EV) based on model predictive control (MPC) algorithm.

963

Abstract

Purpose

This paper studies the lateral stability regulation of intelligent electric vehicle (EV) based on model predictive control (MPC) algorithm.

Design/methodology/approach

Firstly, the bicycle model is adopted in the system modelling process. To improve the accuracy, the lateral stiffness of front and rear tire is estimated using the real-time yaw rate acceleration and lateral acceleration of the vehicle based on the vehicle dynamics. Then the constraint of input and output in the model predictive controller is designed. Soft constraints on the lateral speed of the vehicle are designed to guarantee the solved persistent feasibility and enforce the vehicle’s sideslip angle within a safety range.

Findings

The simulation results show that the proposed lateral stability controller based on the MPC algorithm can improve the handling and stability performance of the vehicle under complex working conditions.

Originality/value

The MPC schema and the objective function are established. The integrated active front steering/direct yaw moments control strategy is simultaneously adopted in the model. The vehicle’s sideslip angle is chosen as the constraint and is controlled in stable range. The online estimation of tire stiffness is performed. The vehicle’s lateral acceleration and the yaw rate acceleration are modelled into the two-degree-of-freedom equation to solve the tire cornering stiffness in real time. This can ensure the accuracy of model.

Details

Journal of Intelligent and Connected Vehicles, vol. 4 no. 3
Type: Research Article
ISSN: 2399-9802

Keywords

Open Access
Article
Publication date: 1 December 2023

Gianni Carvelli

The purpose of this study is to provide new insights into the relationship between fiscal policy and total factor productivity (TFP) while accounting for several economic and…

Abstract

Purpose

The purpose of this study is to provide new insights into the relationship between fiscal policy and total factor productivity (TFP) while accounting for several economic and econometric issues of the phenomenon like non-stationarity, fiscal feedback effects, persistence in productivity, country heterogeneity and unobserved global shocks and local spillovers affecting heterogeneously the countries in the sample.

Design/methodology/approach

The paper is empirical. It builds an Error Correction Model (ECM) specification within a dynamic heterogeneous framework with common correlated effects and models both reverse causality and feedback effects.

Findings

The results of this study highlight some new findings relative to the existing related literature. The outcomes suggest some relevant evidence at both the academic and policy levels: (1) the causal effects going from fiscal deficit/surplus to TFP are heterogeneous across countries; (2) the effects depend on the time horizon considered; (3) the long-run dynamics of TFP are positively impacted by improvements in fiscal budget, but only if the austerity measures do not exert slowdowns in aggregate growth.

Originality/value

The main originality of this study is methodological, with possible extensions to related phenomena. Relative to the existing literature, the gains of this study rely on the way econometric techniques, recently proposed in the literature, are adapted to the economic relationship of interest. The endogeneity due to the existence of reverse causality is modelled without implying relevant performance losses of the models. Moreover, this is the first article that questions whether the effects of fiscal budget on productivity depend on the impact of the former on aggregate output growth, thus emphasising the importance of the quality of fiscal adjustments.

Details

Journal of Economic Studies, vol. 51 no. 9
Type: Research Article
ISSN: 0144-3585

Keywords

Open Access
Article
Publication date: 16 April 2024

Isabella Melissa Gebert and Felipa de Mello-Sampayo

This study aims to assess the efficiency of Brazil, Russia, India, China, South Africa (BRICS) countries in achieving sustainable development by analyzing their ability to convert…

Abstract

Purpose

This study aims to assess the efficiency of Brazil, Russia, India, China, South Africa (BRICS) countries in achieving sustainable development by analyzing their ability to convert resources and technological innovations into sustainable outcomes.

Design/methodology/approach

Using data envelopment analysis (DEA), the study evaluates the economic, environmental and social efficiency of BRICS countries over the period 2010–2018. It ranks these countries based on their sustainable development performance and compares them to the period 2000–2007.

Findings

The study reveals varied efficiency levels among BRICS countries. Russia and South Africa lead in certain sustainable development aspects. South Africa excels in environmental sustainability, whereas Brazil is efficient in resource utilization for sustainable growth. China and India, despite economic growth, face challenges such as pollution and lower quality of life.

Research limitations/implications

The study’s findings are constrained by the DEA methodology and the selection of variables. It highlights the need for more nuanced research incorporating recent global events such as the COVID-19 pandemic and geopolitical shifts.

Practical implications

Insights from this study can inform targeted and effective sustainability strategies in BRICS nations, focusing on areas such as industrial quality improvement, employment conditions and environmental policies.

Social implications

The study underscores the importance of balancing economic growth with social and environmental considerations, highlighting the need for policies addressing inequality, poverty and environmental degradation.

Originality/value

This research provides a unique comparative analysis of BRICS countries’ sustainable development efficiency, challenging conventional perceptions and offering a new perspective on their progress.

Details

International Journal of Development Issues, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1446-8956

Keywords

Open Access
Article
Publication date: 26 April 2022

Fakieh Alrabai

This study aims to propose and test a model that examines the potential connections between two teacher situational variables (teacher immediacy and credibility) and three learner…

2061

Abstract

Purpose

This study aims to propose and test a model that examines the potential connections between two teacher situational variables (teacher immediacy and credibility) and three learner affective factors (motivation, attitudes and communication confidence) and to examine how such associations predict learners’ L2WTC (Foreign/second language willingness to communicate) in a language class via a comprehensive communication model to structurally verify the theoretically based associations among these variables.

Design/methodology/approach

In total, 214 females and 198 males took part in the study with age range between 19 and 38 years. Participants filled in a verified, translated Arabic version of the questionnaires using an online questionnaire. Data were gathered using questionnaires and were analyzed using descriptive statistics, confirmatory factor analysis, path analysis and sequential mediation analysis using bootstrapping methods to identify and verify direct and indirect paths in the model.

Findings

The initial L2 communication structural model showed acceptable goodness of model fit. Teacher credibility and immediacy behaviors only indirectly predicted L2WTC through the mediation of affective variables. Motivation and communication confidence mediated the relationship between credibility and L2WTC, while the association between immediacy and L2WTC was mediated by communication confidence.

Originality/value

The findings of this study have important pedagogical implications globally for professions related to communication instruction, especially with regard to teacher credibility behaviors and particularly for practitioners and beneficiaries in EFL contexts where learners are widely acknowledged for their unwillingness to communicate in foreign language classes.

Details

Saudi Journal of Language Studies, vol. 2 no. 2
Type: Research Article
ISSN: 2634-243X

Keywords

Open Access
Article
Publication date: 1 September 2021

Pan Hu, Ying Wang, Tao Feng and Yuxin Duan

The purpose of this paper is to investigate three issues: how does an innovative search (local search and boundary-spanning search) impact firm innovation performance of…

2008

Abstract

Purpose

The purpose of this paper is to investigate three issues: how does an innovative search (local search and boundary-spanning search) impact firm innovation performance of latecomers; how does capability reconfiguration (capability evolution and capability substitution) mediates the relationship between innovative search and firm innovation performance; and how does the technological leapfrogging process (initial stage, following stage, synchronization stage and leading stage) moderate the relationship between capability reconfiguration and firm innovation performance.

Design/methodology/approach

A “resource-capability-performance” theoretical framework was developed to explore the relationships between local/boundary-spanning search, capability reconfiguration and firm innovation performance. The data were collected by sending out surveys to managers and employees in various industries in mainland China. These hypotheses were tested using structural equation models and hierarchical regressions.

Findings

The results showed that: innovative search has a direct causal relationship to capability reconfiguration; local search and boundary-spanning search are conducive to improve the innovation performance of latecomers; the impact of local search and boundary-spanning search on innovation performance is realized through the completion of mediating role of capability reconfiguration; there are differences in the path of local search and boundary-spanning search affecting the capability reconfiguration of enterprise innovation performance; and the relationship between innovative search, capability reconfiguration and enterprise innovation performance evolves with the enterprise in different stages of technological leapfrogging.

Originality/value

This study explores the relationship and the path of innovative search to firm innovation performance and analyzes the path difference between local search and boundary-spinning search, which enriches the research of organizational search and enterprise innovation. This paper reveals the whole path of innovative search affecting innovation performance, discusses the important role of capability reconfiguration and makes incremental contributions to dynamic capability theory. It studies the evolution of innovative search on innovation performance under the background of technological leapfrogging, which provides a new perspective for the study of organizational search and capability-based theory.

Details

Chinese Management Studies, vol. 15 no. 5
Type: Research Article
ISSN: 1750-614X

Keywords

Open Access
Article
Publication date: 2 February 2018

Wil van der Aalst

Process mining provides a generic collection of techniques to turn event data into valuable insights, improvement ideas, predictions, and recommendations. This paper uses…

8782

Abstract

Purpose

Process mining provides a generic collection of techniques to turn event data into valuable insights, improvement ideas, predictions, and recommendations. This paper uses spreadsheets as a metaphor to introduce process mining as an essential tool for data scientists and business analysts. The purpose of this paper is to illustrate that process mining can do with events what spreadsheets can do with numbers.

Design/methodology/approach

The paper discusses the main concepts in both spreadsheets and process mining. Using a concrete data set as a running example, the different types of process mining are explained. Where spreadsheets work with numbers, process mining starts from event data with the aim to analyze processes.

Findings

Differences and commonalities between spreadsheets and process mining are described. Unlike process mining tools like ProM, spreadsheets programs cannot be used to discover processes, check compliance, analyze bottlenecks, animate event data, and provide operational process support. Pointers to existing process mining tools and their functionality are given.

Practical implications

Event logs and operational processes can be found everywhere and process mining techniques are not limited to specific application domains. Comparable to spreadsheet software widely used in finance, production, sales, education, and sports, process mining software can be used in a broad range of organizations.

Originality/value

The paper provides an original view on process mining by relating it to the spreadsheets. The value of spreadsheet-like technology tailored toward the analysis of behavior rather than numbers is illustrated by the over 20 commercial process mining tools available today and the growing adoption in a variety of application domains.

Details

Business Process Management Journal, vol. 24 no. 1
Type: Research Article
ISSN: 1463-7154

Keywords

Open Access
Article
Publication date: 9 May 2020

Biagio Ciao

This paper aims to construct a process model of business founding in the biotech industry.

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Abstract

Purpose

This paper aims to construct a process model of business founding in the biotech industry.

Design/methodology/approach

An inductive method is used, and five case studies analyzed. Data are coded by applying Gioia’s method.

Findings

Aspirant entrepreneurs conduct resource analysis and industry analysis to formulate research and development targets. They perform transactions and networks because they require resources, and they then deploy and coordinate these resources. Such coordination generates activities with social and financial impacts.

Research limitations/implications

The results are specific to the biotech industry. A future study could examine business founding processes in other industries (e.g. entertainment, fashion, public utilities and sport). Additionally, the paper argues that during the founding process entrepreneurs show little concern for knowledge-sharing risk, as they want to collaborate to implement their ideas. Quantitative papers could test the consequences of such behavior.

Practical implications

The process model provides insights into aspirant founders on how to start a business in the biotech industry.

Originality/value

The paper shows: the differences between the founding process in the biotech industry versus other industries; and the shape of the Bower–Burgelman model in the context of biotech business founding. The paper delineates how private companies discover competencies in the public sector; a model of technology transfer from public to private sector; entrepreneurs’ absence of risk perceptions regarding knowledge-sharing during founding; and how conferences can serve as vehicles for benchmarking in networking.

Details

Management Research Review, vol. 43 no. 10
Type: Research Article
ISSN: 2040-8269

Keywords

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