Yi Chai, Yungang Wang, Yuansheng Wang, Le Peng and Lvyuan Hou
At present, the statistics of human error events in domestic civil aviation are limited, and the analysis indicators are difficult to quantify. The purpose of this study is to…
Abstract
Purpose
At present, the statistics of human error events in domestic civil aviation are limited, and the analysis indicators are difficult to quantify. The purpose of this study is to reduce the incidence of human error events and improve the safety of civil aviation.
Design/methodology/approach
In this paper, a safety prevention evaluation method combining analytic hierarchy process (AHP) and fuzzy comprehensive evaluation (FCE) is proposed. The risk factors of civil aviation safety are identified through questionnaire survey and calculated by MATLAB software.
Findings
The results of the study are as follows: a safety risk evaluation index system including 4 first-level indicators and 16 second-level indicators is constructed; the AHP is used to calculate the weight of the influencing factors of human error and sort them; and the FCE method is used to quantitatively evaluate the safety prevention of civil aviation human error and put forward the countermeasures.
Research limitations/implications
This study also has some limitations. While it provides an overall quantitative identification of civil aviation safety risk factors, the research methods chosen, such as the questionnaire survey method and the AHP, involve individual subjectivity. Consequently, the research results may have errors. In the preliminary preparation of the follow-up study, we should analyze a large number of civil aviation accident investigation reports, more accurately clarify the human error factors and completely adopt the quantitative analysis method in the research method.
Practical implications
This study identifies the risk factors of civil aviation safety and conducts a reasonable analysis of human error factors. In the daily training of civil aviation, the training can be focused on previous man-made accidents; in view of the “important” influencing factors, the aviation management system is formulated to effectively improve the reliability of aviation staff; according to the evaluation criteria of human error in civil aviation, measures to prevent and control accidents can be better formulated.
Social implications
In view of these four kinds of influencing factors, the corresponding countermeasures and preventive measures are taken according to the discussion, so as to provide the basis for the prevention of aviation human error analysis, management and decision-making, prevent the risk from brewing into safety accidents and improve the safety of aviation management.
Originality/value
Based on the questionnaire survey, this study creatively applies the safety prevention evaluation method combining AHP and FCE to the study of civil aviation human error, integrates the advantages of qualitative and quantitative methods, flexibly designs qualitative problems, objectively quantifies research results and reduces subjective variables. Then, by discussing civil aviation safety management measures to avoid risk factors, reduce the incidence of human error events and improve the safety of civil aviation.
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Nuraddeen Sani Nuhu, Martin Owens and Deirdre McQuillan
The authors explore how home and host market institutions impact emerging market (EM) international entrepreneurship (IE) into developed markets.
Abstract
Purpose
The authors explore how home and host market institutions impact emerging market (EM) international entrepreneurship (IE) into developed markets.
Design/methodology/approach
Based on four case studies of Nigerian entrepreneurs expanding into the USA, this qualitative research adopts an institutional perspective to the study of EM IE.
Findings
The findings show home and host formal and informal institutions simultaneously enable and constrain the IE process. Weak home institutions shape the international opportunity recognition decision but seriously impede international opportunity development and exploitation activities in the developed market. EM entrepreneurs benefit from highly functioning regulation in the developed market whilst also experiencing discriminatory treatment from institutions. The findings of the study further show the positive and constraining effects of host institutions throughout the process.
Originality/value
Based on the findings, the paper details future research ideas, managerial implications and recommendation for policymakers.
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Changhua Liu, Jide Qian, Zuocai Wang and Jin Wu
For fixed-wing micro air vehicles, the attitude determination is usually produced by the horizon/Global Navigation Satellite System (GNSS) in which the GNSS provides yaw…
Abstract
Purpose
For fixed-wing micro air vehicles, the attitude determination is usually produced by the horizon/Global Navigation Satellite System (GNSS) in which the GNSS provides yaw estimates, while roll and pitch are computed using horizon sensors. However, the attitude determination has been independently obtained from the two sensors, which will result in insufficient usage of data. Also, when implementing attitude determination algorithms on embedded platforms, the computational resources are highly restricted. This paper aims to propose a computationally efficient linear Kalman filter to solve the problem.
Design/methodology/approach
The observation model is in the form of a least-square optimization composed by GNSS and horizontal measurements. Analytical quaternion solution along with its covariance is derived to significantly speed up on-chip computation.
Findings
The reconstructed attitude from Horizon/GNSS is integrated with quaternion kinematic equation from gyroscopic data that builds up a fast linear Kalman filter. The proposed filter does not involve coupling effects presented in existing works and will be more robust encountering bad GNSS measurements.
Originality/value
Electronic systems are designed on a real-world fixed-wing plane. Experiments are conducted on this platform that show comparisons on the accuracy and computation execution time of the proposed method and existing representatives. The results indicate that the proposed algorithm is accurate and much faster computation speed in studied scenarios.
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This study aims to examine the impact of housing construction on single-family housing values and the implications for urban development.
Abstract
Purpose
This study aims to examine the impact of housing construction on single-family housing values and the implications for urban development.
Design/methodology/approach
To achieve this objective, the author used the difference-in-difference methodology to examine the effect of multifamily and single-family housing construction on surrounding single-family homes in Stockholm, Sweden. The author analysed data from approximately 480 housing construction projects between 2009 and 2014 and 17,000 single-family detached house transactions between 2005 and 2018.
Findings
The research found that multifamily construction projects did not affect the value of surrounding single-family homes, while single-family home construction had a negative impact. The author attributes this result to single-family housing projects typically located in areas with initially positive externalities, while multifamily housing projects are often located on the edge of areas with negative externalities before construction.
Research limitations/implications
The research is limited by its focus on a specific geographic area and time frame, and future research could expand the scope to include other cities and regions and different periods. Additionally, further research could examine the impact of housing construction on other economic factors beyond housing values.
Practical implications
The research has practical implications for urban planners and policymakers. They should consider the potential negative impact of new single-family home construction on existing single-family housing areas while balancing the need for new housing in urban areas. By carefully evaluating construction locations, policymakers can create more sustainable, livable and equitable urban environments that benefit all members of society.
Originality/value
This research paper contributes to the field of housing economics by examining the impact of housing construction on single-family housing values in the context of urban development and climate change mitigation. Using a difference-in-difference methodology, the study provides evidence of the price effect of multifamily and single-family housing construction on surrounding single-family homes, which has important policy implications for urban planners and policymakers. By identifying the negative impact of single-family home construction on surrounding areas and highlighting the need for careful evaluation of construction locations, the research provides valuable insights for creating sustainable, livable and equitable urban environments that benefit all members of society.
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This study aims to test a holistic model that investigates the direct influence of workplace ostracism on employee initiative behaviour, along with the mediating role of…
Abstract
Purpose
This study aims to test a holistic model that investigates the direct influence of workplace ostracism on employee initiative behaviour, along with the mediating role of organisational identity and work well-being.
Design/methodology/approach
A series of questionnaire surveys were conducted to collect data in three time lags and multiple sources; 261 supervisor–subordinate matched samples were finally obtained. The hypothesized relationships were tested using structural equation modelling and the ProClin program.
Findings
The results suggest that workplace ostracism is negatively related to employee initiative behaviour, and organisational identity and work well-being play mediating roles. The analysis further confirms that organisational identity and work well-being play a chained double mediating role between workplace ostracism and employee initiative behaviour.
Originality/value
This study demonstrates the influence of negative work situation on employee initiative behaviour, specifically the role of workplace ostracism, and expands the theoretical foundation of the relationship. It further provides inspiration and serves as a reference for local Chinese management practices.
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Paul Kojo Ametepe, Emetomo Uchefiho Otuaga, Chinwe Felicia Nnaji and Mustapha Sina Arilesere
This study aimed at investigating employee training, employee participation and organizational commitment (OC) and the moderating effect of workplace ostracism among bank…
Abstract
Purpose
This study aimed at investigating employee training, employee participation and organizational commitment (OC) and the moderating effect of workplace ostracism among bank employees.
Design/methodology/approach
The study used a descriptive and cross-sectional design with the aid of a standard scale constructed into a questionnaire. Cluster, convenience and simple random sampling techniques were used to select 1,067 respondents, of which 870 were deemed fit for the study. The theories underpinning the study were the social exchange theory (SET) and social identity theory (SIT). Four hypotheses were developed and tested using hierarchical multiple regression analysis, and moderation using PROCESS macro.
Findings
The study found that employee training and employee participation had a significant positive relationship with organizational commitment, while organizational ostracism had a significant but negative relationship with organizational commitment among bank employees. The study also found that workplace ostracism moderated the relationship between organizational climate and organizational commitment The study recommended that organizational commitment requires management training their workforce, allowing employee participation in decisions, and minimizing or outrightly eradicating the practice of organizational ostracism. It is, therefore, concluded that workers place great value on training and participation in decision-making and frown at organizational ostracism.
Originality/value
This paper fills in the gaps left by the paucity of empirical investigation of the moderating role that workplace ostracism plays between employee training, employee participation and organizational commitment – a feat that is lacking in developing countries. It serves as a reminder to management to prevent or entirely eliminate workplace ostracism to allay an employee's impression of being a threat to an organization when commitment is low.
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Fabienne Touchard, Damien Marchand, Laurence Chocinski-Arnault, Teddy Fournier and Christophe Magro
Additive manufacturing is a recent technology used in the production of composite materials. The use of continuous fibres as reinforcement is necessary to achieve high mechanical…
Abstract
Purpose
Additive manufacturing is a recent technology used in the production of composite materials. The use of continuous fibres as reinforcement is necessary to achieve high mechanical performance. However, making these materials more environmentally friendly is still challenging. The purpose of this study was to investigate the feasibility of 3D printing a composite made of continuous regenerated cellulose fibres using a standard 3D printer generally used for printing polymers.
Design/methodology/approach
The production process was based on a pre-impregnated filament made from a tape containing continuous cellulose fibres and Pebax® matrix. 3D printed composite samples were fabricated using fused deposition modelling. The tape, filament and 3D printed composites were first analysed by means of modulated differential scanning calorimetry and micrography. Tensile tests were then performed, and the mechanical characteristics were determined at each step of the production process. Fracture surfaces were investigated by field-emission gun–scanning electron microscopy.
Findings
Results showed that the mechanical behaviour of the material was maintained throughout the production process, and the 3D printed biocomposites had a stiffness equivalent to that of traditionally manufactured continuous cellulose fibre composites. The obtained 3D printed composites showed an increase in strength value by a factor of 4 and in tensile modulus by a factor of 20 compared to those of unreinforced Pebax® polymer.
Originality/value
This paper demonstrates the feasibility of 3D printing composites based on continuous cellulose fibres, paving the way for new biocomposites made by additive manufacturing.
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Fanhua Wu, Yuyu Zhang, Tao Li, Yongfeng Liu, Yi Liu, Zhiang Yuan and Rongjun Qu
The purpose of this study was to prepare carboxylated attapulgite (APT-COOH) and then be used as one of the ligands to prepare metal organic framework (MOF) hybrid materials to…
Abstract
Purpose
The purpose of this study was to prepare carboxylated attapulgite (APT-COOH) and then be used as one of the ligands to prepare metal organic framework (MOF) hybrid materials to reduce the cost of MOF materials and improve the dispersed condition of APT. And then the materials were used to enrich anionic dye Congo red from aqueous solution.
Design/methodology/approach
The MOF hybrid materials were designed by means of facile reflux method rather than hydrothermal method, characterized by Thermogravimetric Analysis (TGA), Fourier Transform Infrared (FTIR) Spectrometer and pore structure. The dispersed degree of APT-COOH in the MOF materials was validated according to adsorption efficiency for Congo red.
Findings
Due to introduction of APT-COOH, the microenvironment of the MOF materials changed, leading to different adsorption behaviors. Compared to the MOF material without APT-COOH, the adsorption capacities of the hybridized MOF materials with different amounts of APT-COOH introduced increased by 4.58% and 15.55%, respectively, as the initial concentration of Congo red solution of 300 mg/L. Meantime, hybridized MOF materials were suitable to remove Congo red with low concentration, while the MOF material without APT-COOH was appropriate to enrich Congo red with high concentration.
Research limitations/implications
The microstructure of MOF hybrid materials in detail is the further and future investigation.
Practical implications
This study will provide a method to reduce the cost of MOF materials and a theoretical support to treat anionic dyes from aqueous solution.
Originality/value
APT-COOH was prepared and used as one of the ligands to synthesize MOF material to improve the dispersed degree of APT-COOH and reduce the cost of the MOF materials. The adsorption efficiency was greatly enhanced with low concentration of Congo red solution, and the results indicated that hydrogen bonding, electrostatic interaction, and p-p conjugation were involved in the adsorption process. The prepared MOFs materials exhibited excellent adsorption efficiency, which made the present materials highly promising and potentially useful in practical application as adsorbents to enrich anionic dyes such as Congo red from aqueous solution.
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The purpose of this study is to propose a research model based on the stimulus–organism–response (S–O–R) model to examine whether network externality, personalization and…
Abstract
Purpose
The purpose of this study is to propose a research model based on the stimulus–organism–response (S–O–R) model to examine whether network externality, personalization and sociability as environmental feature antecedents to learners’ learning engagement (LE) can influence their learning persistence (LP) in massive open online courses (MOOCs).
Design/methodology/approach
Sample data for this study were collected from learners who had experience in taking MOOCs provided by the MOOC platform launched by a well-known university in Taiwan, and 371 usable questionnaires were analyzed using structural equation modeling in this study.
Findings
This study proved that learners’ perceived network externality, personalization and sociability in MOOCs positively affected their cognitive LE, psychological LE and social LE elicited by MOOCs, which jointly led to their LP in MOOCs. The results support all proposed hypotheses, and the research model accounts for 76.2% of the variance in learners’ LP in MOOCs.
Originality/value
This study uses the S–O–R model as a theoretical base to construct learners’ LP in MOOCs as a series of the inner process, which is affected by network externality, personalization and sociability. It is worth noting that three psychological constructs including cognitive LE, psychological LE and social LE are used to represent learners’ organismic states of MOOCs usage. To date, hedonic/utilitarian concepts are more often adopted as organisms in previous studies using the S–O–R model, and psychological constructs have received lesser attention. Hence, this study’ contribution on the application of capturing psychological constructs for completely expounding three types of environmental features as antecedents to learners’ LP in MOOCs is well documented.
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Christopher Selvarajah, Denny Meyer, Robert Jeyakumar Nathan and Jerome Denis Donovan
– The purpose of this paper is to examine the changing cultural values that influence the perception of managers to leadership excellence in their organisations in Singapore.
Abstract
Purpose
The purpose of this paper is to examine the changing cultural values that influence the perception of managers to leadership excellence in their organisations in Singapore.
Design/methodology/approach
Summated scales for the importance of excellent leader, personal qualities, managerial behaviours, organisational demands and environmental influences were developed using most of the items categorised by Selvarajah et al. (1995) and several other items rated highly in this study. A structural model was constructed to explain the relationship in excellence in leadership.
Findings
In all, 249 managers, from the three main ethnic groups: Chinese, Indians and Malays participated in this research. The findings suggest that ethnic differences are not strong determinants of managerial values in organisations in Singapore. However, gender is seen as a differentiating factor in the behavioural values of Singapore managers.
Research limitations/implications
This study is purely an exploratory study and the size of the sample is not large enough to create purposeful causal relationships. Certainly the effect of ethnicity on the study should be explored further with a larger sample.
Practical implications
Singapore is a highly globalised country that attracts international investments. Statistics in Singapore clearly suggests that there is a sharp increase in women managers in employment. Therefore, understanding the changing behavioural values of managers of both sexes are important for a foreigner engaging with Singapore nationals.
Originality/value
This is the first study that looks at behavioural values of Singapore managers with regard to leadership excellence. The masculinity-femininity dimension is pronounced in the gender split.