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Aircraft assembly is the crucial part of aircraft manufacturing, and to meet the high-precision and high-efficiency requirements, cooperative measurement consisting of multiple measurement instruments and automatic assisted devices is being adopted. To achieve the complete data of all assembly features, measurement devices need to be placed at different positions, and the flexible and efficient transfer relies on Automated Guided Vehicles (AGVs) and robots in the large-size space and close range. This paper aims to improve the automatic station transfer in accuracy and flexibility.

A transferring system with Light Detection and Ranging (LiDAR) and markers is established. The map coupling for navigation is optimized. Markers are distributed according to the accumulated uncertainties. The path planning method applied to the collaborative measurement is proposed for better accuracy. The motion planning method is optimized for better positioning accuracy.

A transferring system is constructed and the system is verified in the laboratory. Experimental results show that the proposed system effectively improves positioning accuracy and efficiency, which improves the station transfer for the cooperative measurement.

A Transferring system for collaborative measurement is proposed. The optimized navigation method extends the application of visual markers. With this system, AGV is capable of the cooperative measurement of large aircraft structural parts.

As an advanced manufacturing method, additive manufacturing (AM) technology provides new possibilities for efficient production and design of parts. However, with the continuous expansion of the application of AM materials, subtractive processing has become one of the necessary steps to improve the accuracy and performance of parts. In this paper, the processing process of AM materials is discussed in depth, and the surface integrity problem caused by it is discussed.

Firstly, we listed and analyzed the characterization parameters of metal surface integrity and its influence on the performance of parts and then introduced the application of integrated processing of metal adding and subtracting materials and the influence of different processing forms on the surface integrity of parts. The surface of the trial-cut material is detected and analyzed, and the surface of the integrated processing of adding and subtracting materials is compared with that of the pure processing of reducing materials, so that the corresponding conclusions are obtained.

In this process, we also found some surface integrity problems, such as knife marks, residual stress and thermal effects. These problems may have a potential negative impact on the performance of the final parts. In processing, we can try to use other integrated processing technologies of adding and subtracting materials, try to combine various integrated processing technologies of adding and subtracting materials, or consider exploring more efficient AM technology to improve processing efficiency. We can also consider adopting production process optimization measures to reduce the processing cost of adding and subtracting materials.

With the gradual improvement of the requirements for the surface quality of parts in the production process and the in-depth implementation of sustainable manufacturing, the demand for integrated processing of metal addition and subtraction materials is likely to continue to grow in the future. By deeply understanding and studying the problems of material reduction and surface integrity of AM materials, we can better meet the challenges in the manufacturing process and improve the quality and performance of parts. This research is very important for promoting the development of manufacturing technology and achieving success in practical application.

This study aims to examine how perceptions of corporate social responsibility (CSR) activities (i.e. environment, society and stakeholders) enhance perceived value, social media engagement to win customer loyalty in the hotel industry. In addition, it investigates the mediating effects of customer perceived value and social media engagement between CSR activities and customer loyalty.

A self-administered survey was conducted on customers in Malaysia. Based on the data collected from 389 customers, the analysis used the structural equation modelling (SEM) approach. The validity and reliability of the measurements were confirmed before the hypotheses of the study have been tested.

The results revealed that CSR related to the environment has significant direct and indirect impacts on customer loyalty. In addition, the effect of perceived value and social media engagement on customer loyalty has been supported. The results also demonstrated the mediating role of perceived value and social media engagement between CSR activities and customer loyalty.

This study advances the understanding of the impact of CSR activities, perceived value and social media engagement on customer loyalty in the hotel industry. Hoteliers can gain benefits by understanding how specific CSR activities can enhance customer perceived value and social media engagement value, thus leads to customer loyalty.

This study investigates the association between CSR activities, perceived value, social media engagement and customer loyalty, which has been lacking a full investigation in the hospitality literature.

El objetivo de este estudio es examinar cómo las percepciones de las distintas actividades de Responsabilidad Social Corporativa (RSC) (i.e., medio ambiente, sociedad y skateholders) mejoran el valor percibido por los clientes, su compromiso en medios sociales y su lealtad en la industria hotelera. También se investigan los efectos mediadores del valor percibido por el cliente y su compromiso en medios sociales sobre las relaciones entre las actividades de RSC y la lealtad.

Se realizó una encuesta autoadministrada a los clientes en Malasia. Tomando como referencia los datos recogidos de 389 clientes, se utilizó la metodología SEM. La validez y fiabilidad de las escalas de medida fueron confirmadas antes de contrastar las hipótesis del estudio.

Los resultados revelaron que sólo la RSC relacionada con el medio ambiente tiene un impacto, tanto directo como indirecto, sobre la lealtad de los clientes. Además, se han confirmado los efectos del valor percibido y el compromiso en medios sociales sobre la lealtad de los clientes. Los resultados también demostraron el papel mediador del valor percibido y el compromiso en medios sociales sobre la relación entre las actividades de RSC y la lealtad de los clientes.

Este estudio permite comprender mejor el impacto de las actividades de RSC, el valor percibido y el compromiso en medios sociales en la lealtad de los clientes en la industria hotelera. Los hoteleros pueden obtener beneficios al comprender cómo las actividades específicas de RSC pueden mejorar el valor percibido por los clientes y su compromiso en medios sociales y, por lo tanto, aumentar la lealtad de los clientes.

Este trabajo analiza la asociación entre las actividades de RSC, el valor percibido, el compromiso en medios sociales y la lealtad de los clientes, lo cual ha sido escasamente estudiado en la literatura sobre hospitalidad.

RSC, Medios sociales, Valor percibido, Compromiso, Lealtad de clientes, Industria hotelera

Trabajo de investigación

Research on grey systems is becoming more sophisticated, and grey relational and prediction analyses are receiving close review worldwide. Particularly, the application of grey systems in marine economics is gaining importance. The purpose of this paper is to summarize and review literature on grey models, providing new directions in their application in the marine economy.

This paper organized seminal studies on grey systems published by Chinese core journal database – CNKI, Web of Science and Elsevier from 1982 to 2018. After searching the aforementioned database for the said duration, the authors used the CiteSpace visualization tools to analyze them.

The authors sorted the studies according to their countries/regions, institutions, keywords and categories using the CiteSpace tool; analyzed current research characteristics on grey models; and discussed their possible applications in marine businesses, economy, scientific research and education, marine environment and disasters. Finally, the authors pointed out the development trend of grey models.

Although researches are combining grey theory with fractals, neural networks, fuzzy theory and other methods, the applications, in terms of scope, have still not met the demand. With the increasingly in-depth research in marine economics and management, international marine economic research has entered a new period of development. Grey theory will certainly attract scholars’ attention, and its role in marine economy and management will gain considerable significance.

This study attempts to explain the impact of Fintech on the Asian economies through two main indicators, inflation and unemployment over the period 2011-2014-2017.

This study uses panel data regression models to explain the relationship between Fintech, inflation as an indicator of currency circulation and unemployment since Fintech has disrupted the labor market.

Empirical results show a consistently strong and positive relationship between the development of financial technologies and the reduction of inflation and unemployment unless these technologies are actively used. Digital finance has become a new driver of economic development. Therefore, governors should not only improve their economies but also expand their information and communication technologies to develop their digital infrastructure, especially for businesses.

The present study contributes to the existing literature on the impact of disruptive digital innovation on the socioeconomic development of emerging countries. The empirical evidence highlights the importance of distinguishing between active and passive uses of Fintech in order to anticipate its economic impact.

This study aims to investigate the impact of the innovative ritual-based redesign of a routine in the challenging context of the dining-out sector, characterized by low employee commitment and high turnover.

This study adopts a mixed methods experimental design. This study focuses on a field experiment in a real restaurant centered on the restaurant’s welcome entrée routine. The routine is first observed as it happens, after which it is redesigned as a ritual.

The ritual-based redesign of the routine enhances employee sharing of the purpose of the routine and reduces the variability of the execution time of the routine, which increases group cohesion among the restaurant staff. Besides the positive impact on the routine’s participants, the ritual-based redesign has a beneficial effect on the performance of the routine by increasing the enjoyment of the end-consumers at the restaurant.

The ritual-based redesign of routines is a powerful managerial tool that bonds workers into a solidary community characterized by strong and shared values. This allows guidance of the behavior of new and existing employees in a more efficient and less time-consuming way.

Rituals have been traditionally analyzed from the customer perspective as marketing tools. This research investigates the employees’ perspective, leveraging ritual-based redesign as a managerial tool for increasing cohesion among workers.

Soil nutrient management and fertilizer use by farmers are important for sustainable grain production. The authors examined the effect of an experimental agricultural extension program, the science and technology backyard, in promoting sustainable soil nutrient management in the North China Plain (NCP). The science and technology backyard integrates farmer field schools, field demonstrations, and case-to-case counselling to promote sustainable farming practices among rural smallholders.

The authors conducted a large-scale household survey of more than 2,000 rural smallholders. The authors used a multivariate regression analysis as the benchmark to assess the effect of the science-and-technology backyard on smallholder soil nutrient management. Furthermore, the authors used coarse exact matching (CEM) methods to control for potential bias due to self-selection and the (endogenous) switching regression approach as the main empirical analysis.

The results show that the science-and-technology backyard program increased smallholders' wheat yield by approximately 0.23 standard deviation; however, no significant increase in maize yield was observed. Regarding soil nutrient use efficiency, the authors found a significant improvement in smallholders' phosphorus and potassium use efficiencies for both wheat and maize production, and a significant improvement in nitrogen use efficiency for wheat production, but no significant improvement of nitrogen use efficiency for maize production.

This study evaluated a novel participatory agricultural extension model to improve soil nutrient management practices among smallholders. The integration of agronomists' scientific knowledge and smallholders' local contextual experiences could be an effective way to improve farmers' soil nutrient management. This study provides the first quantitative estimates based on rigorous impact assessment methods of this novel extension approach in rural China.

The purpose of this paper is to study the architecture of holographic personalized portal, user modeling, commodity modeling and intelligent interaction.

In this paper, the authors propose crowd-science industrial ecological system based on holographic personalized portal and its interaction. The holographic personality portal is based on holographic enterprises, commodities and consumers, and the personalized portal consists of accurate ontology, reliable supply, intelligent demand and smart cyberspace.

The personalized portal can realize the information acquisition, characteristic analysis and holographic presentation. Then, the intelligent interaction, e.g. demand decomposition, personalized search, personalized presentation and demand prediction, will be implemented within the personalized portal.

The authors believe that their work on intelligent interaction based on holographic personalized portal, which has been first proposed in this paper, is innovation focusing on the interaction between intelligence and convenience.