Search results

The purpose of this study is to develop a deep learning framework for additive manufacturing (AM), that can detect different defect types without being trained on specific defect data sets and can be applied for real-time process control.

This study develops an explainable artificial intelligence (AI) framework, a zero-bias deep neural network (DNN) model for real-time defect detection during the AM process. In this method, the last dense layer of the DNN is replaced by two consecutive parts, a regular dense layer denoted (L1) for dimensional reduction, and a similarity matching layer (L2) for equal weight and non-biased cosine similarity matching. Grayscale images of 3D printed samples acquired during printing were used as the input to the zero-bias DNN.

This study demonstrates that the approach is capable of successfully detecting multiple types of defects such as cracks, stringing and warping with high accuracy without any prior training on defective data sets, with an accuracy of 99.5%.

Once the model is set up, the computational time for anomaly detection is lower than the speed of image acquisition indicating the potential for real-time process control. It can also be used to minimize manual processing in AI-enabled AM.

To the best of the authors’ knowledge, this is the first study to use zero-bias DNN, an explainable AI approach for defect detection in AM.

Operations and Logistics.

Senior undergraduate students and postgraduate students specialising in agricultural economics/agribusiness/supply chain management and can also be used for executive training for supply chain managers and corporate social responsibility (CSR) managers of food companies.

This case presents an industry leading company – Nestlé’s sustainable initiative in its dairy supply chain in China. The case begins with the background of China’s dairy industry, followed by an introduction of the case company. The case then moves on to the comparison of Nestlé’s fresh milk supply chain operation before and after 2008 and different approaches to help the dairy suppliers’ transformation. The focus is on Nestlé’s innovative industry collaboration platform, the Dairy Farming Institute.

This case allows students to explore the following theoretical frameworks: sustainable supply chain management; supply chain leadership, supply chain learning and supply chain structure. By analysing this case, students should be able to gain an understanding of how multinational corporations (MNCs) play a supply chain leadership role in supply chain learning of sustainable supply chain initiatives.

Teaching Notes are available for educators only. Please contact your library to gain login details or email support@emeraldinsight.com to request teaching notes.

CSS 9: Operations and Logistics.

With the development of the city, the urban parks of the red revolutionary culture have been gradually recognized by people. Red culture can arouse people's special memory for a period and a city, thus gradually applying to the urban landscape planning. Based on this, in this paper, in terms of terrain, water, artificial structure, light and shade, color and so on, the urban park landscape of the red revolutionary culture was planned and studied. At the same time, by using a large number of successful cases of domestic red landscape and foreign commemorative landscape, a way of thinking and method for the design of red landscape was explored. In addition, taking the Wuzhishan red cultural theme park as an example, the study was carried out, and the problems faced by the red culture theme park in the planning and design stage were expounded. Finally, the theory was applied to practice, thus providing an example for reference.

This paper aims to investigate the effect of aluminum addition on the microstructure and mechanical properties of Mg-8Gd-4Y-1Zn alloy.

Mg-8Gd-4Y-1Zn-xAl (x = 0, 0.5, 1.0, 1.5, 2.0 Wt.%) alloys were prepared by the conventional gravity casting technology, and then microstructures, phase composition and mechanical properties were investigated by material characterization method, systematically.

Results show that the as-cast microstructure of Mg-8Gd-4Y-1Zn alloy mainly consists of a-Mg matrix as well as Mg₁₂REZn (18 R LPSO structure), and island-like Mg₃(RE, Zn) phase is distributed at the grain boundary. The addition of a small amount of Al (0.5 Wt.%) can decrease the content of island-like Mg₃(RE, Zn) phase, but significantly increase the content of long-period stacking ordered (LPSO) structure, resulting in the improvement of both tensile strength and elongation of Mg-8Gd-4Y-1Zn alloy. However, the addition of excessive Al will consume Re element and decrease the amount of LPSO structure, leading to the decrease of tensile properties. When the content of Al is 0.5 Wt.%, the tensile strength and elongation are 225 MPa and 9.0% of Mg-8Gd-4Y-1Zn alloy, which are 14% and 29% higher than that of Mg-8Gd-4Y-1Zn alloy, respectively.

Adding aluminum to Mg-8Gd-4Y-1Zn alloy strengthens its mechanical properties. And the effect of Al content on the alloy strengthening. The formation mechanism of LPSO structure with different aluminum content was revealed.

Using social exchange theory, this paper explores the relationship between supervisor perceived organizational support and supervisor developmental feedback. It verifies the mediating role of supervisor felt obligation to organization and the moderating role of supervisor core self-evaluation in this relationship.

A two-wave survey sampling method was applied to collect 247 pieces of paired data (supervisors-new employees) in organizations in China.

The results show that supervisor felt obligation to organization mediates the relationship between supervisor perceived organizational support and supervisor developmental feedback. The findings suggest that a high level of supervisor core self-evaluation strengthens the relationship between supervisor perceived organizational support and supervisor felt obligation to organization and then facilitates supervisor developmental feedback.

This study combines two perspectives, organizational factor and supervisor trait, to reveal the occurrence mechanism of supervisor developmental feedback and complements the research on the influencing factors of supervisor developmental feedback. In addition, it provides some theoretical guidance and practical insights into how organizations can motivate supervisors to provide developmental feedback to new employees.

In this work, the authors used reversible addition-fragmentation transfer (RAFT) polymerization to develop a new cationic acrylate modified epoxy resin emulsion for water-borne inkjet which have the advantages of both polyacrylate and epoxy resin. The emulsion was successfully used in the canvas coating for inkjet printing. This paper aims to contribute to the development of novel cationic emulsions for inkjet printing industry.

In this work, the epoxy acrylate was synthesized from RAFT agent and epoxy resin firstly. Cationic macromolecular emulsifier was prepared by RAFT polymerization, using 2,2’-Azobisisobutyronitrile as initiator, 2-(dimethylamino)ethyl methacrylate and styrene as monomer, which was directly used to prepare the emulsion. The influences of the amount of 2-(dimethylamino)ethyl methacrylate on particle size, zeta potential and water contact angle were studied. Finally, the cationic emulsion was used to print images by inkjet printing.

The emulsion has the smallest particle size, the highest potential and the highest water contact angle when the DM content is 13 Wt.%. The transmission electron microscopy analysis reveals the latex particles is core-shell sphere with the diameters in the range 120–200 nm. The emulsion was successfully used in the canvas coating for inkjet printing. This work will contribute to the development of novel cationic emulsions for inkjet printing industry.

The emulsion was successfully used in the canvas coating for inkjet printing. This work will contribute to the development of novel cationic emulsions for inkjet printing industry.

This study investigates the influence of artificial intelligence (AI) stimuli on customer stickiness (CS), the mediation effects of social presence (SP) and the moderating impacts of customer traits in this influencing process.

Drawing on the arousal theory and social response theory, a conceptual model was established and tested by a data set of 268 customers in the catering industry.

The results indicate that AI stimuli, such as perceived personalization and perceived interactivity, positively affect CS. SP partially mediates the influence of AI stimuli on CS. Customer traits such as customers' need for interaction (NFI) and novelty seeking (NS) actively moderate the mediating effects of SP.

This study advances the interactive marketing literature from three aspects. Firstly, instead of focusing on the functional aspects of AI stimuli, it extends our understanding of AI-enabled interactive marketing by examining the effects of social and emotional aspects of AI stimuli on customer response. Secondly, it extends our understanding of social response by illuminating the mediating effects of SP between AI stimuli and CS. Finally, it provides new insights and empirical evidence for the research focus on customer traits in AI-enabled interactive marketing.

To fill the previous research gap, focusing on two constructs, i.e. perceived supervisor support (PSS) and psychological capital (PsyCap), this study aims to explore the mechanism underlying the relationship between teaching–research conflict (TRC) and job burnout among university teachers using the lens of job demands–resources (JD-R) model.

First, theoretically grounded hypotheses linking teaching–research conflict, PSS and PsyCap to job burnout were formulated. Then, a cross-sectional design was used to test the theoretical model presented in this study.

The results showed that TRC was positively linked to emotional exhaustion (EE) and depersonalization (DP), but negatively linked to personal accomplishment; PSS moderated the effect of TRC on both EE and DP but did not act as a moderator in the relationship between TRC and personal accomplishment; and PsyCap moderated the effect of TRC on all the three dimensions of job burnout.

Given that the data were collected from single-source, the study was vulnerable to the common method variance. Besides, the relative small sample size limits the representativeness of the sample. Moreover, the cross-sectional design cannot confirm causal relationship between variables. Despite these limitations, the findings of this research can potentially inform effective interventions aimed at reducing the effect of TRC on job burnout among university teachers.

Based on the JD-R model, PSS and PsyCap are used to explore the effect of TRC on job burnout for the first time.

This paper discusses the urban management challenges in the Greater Kuala Lumpur area. Before examining Greater Kuala Lumpur's economic and social environment, we will look at the factors that make it a competitive and fiscally sound entity. When considering urban development and redevelopment, we consider how proposed and ongoing projects, as well as plans, hierarchical links, and road networks, contributed to the increase. Because there is no urban growth boundary, land use change and rural encroachment, as well as environmental degradation and the impact of national economic projects on urban expansion, are both rapid and linear in the analysis. This paper also considers how to manage linear development that results in the creation of new suburbs. Finally, we propose strategies for achieving sustainable urban expansion and management by balancing the financial and governance capacities of Greater Kuala Lumpur local governments.

The purpose of this paper is to reargue the great controversies surrounding marketization, by the concept of intrinsic value and to give a panorama of China's marketization and social development during last 30 years.

The concept of intrinsic value is elaborated, and marketization and closely linked concepts such as price, wealth, happiness, freedom, etc. are reargued. An intrinsic value account (IVA) is constructed and the enhancement and weakening of some intrinsic values could be clearly shown. A panorama of China's marketization and social development is exhibited by IVA.

The basic point of this paper is that social development is a concept with strong but implicit ethical assumption and should be explicitly based upon intrinsic value. Without concrete definition and consensus on intrinsic value, it will face great disputes on judging human history as social development or social degradation. Market is not only an objective value‐neural system, but a subjective moral entity. China's maketization has enhanced economic value greatly, but suffered great loss by other intrinsic values.

IVA could be a practical instrument to evaluate social development and clarify the possible academic controversies on market. The arguments of China's marketization experience could be of benefit to other developing countries.

This paper could encourage people, particularly policy makers, to consider their value assumptions, value priority, some basic concepts in market, and what human kind is really pursuing.

The paper shows that IVA could be a new instrument to better evaluate social development, similar to the National Income Account or National Happiness Account.