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Article
Publication date: 20 November 2024

Madhusudan Painuly, Ravi Pratap Singh and Rajeev Trehan

This article targeted to experimentally examine the impact of several considered process parameters namely, applied voltage (AV), tool feed rate, electrolyte concentration and…

Abstract

Purpose

This article targeted to experimentally examine the impact of several considered process parameters namely, applied voltage (AV), tool feed rate, electrolyte concentration and pulse frequency (PF), on the material removal rate (MRR) and radial overcut (ROC) while performing shaped tube drilling of aviation grade Inconel 625 super alloy through electrochemical machining principle. Further, an attempt has also been made to develop mathematical models for the process responses along with advanced optimization with evolutionary methods.

Design/methodology/approach

The central composite rotatable design matrix was used to scheme out the experiments in the present study. The consistency and accuracy of the developed mathematical models were confirmed through statistical results. Additionally, a field emission scanning electron microscope analysis was conducted to assess and analyze the microstructure of the machined work samples. The study also seeks to optimize the selected process inputs for MRR and ROC through the implementation of the desirability method, particle swarm optimization (PSO) and Teaching Learning-Based Optimization (TLBO).

Findings

The ROC is significantly influenced by the input parameters, specifically the PF and AV. Less ROC values were observed when the high PF with moderate AV. The minimum and maximum values of ROC and MRR were obtained as; 135.128 µm and 380.720 µm; 1.37 mg/min and 2.3707 mg/min, correspondingly. The best optimized confirmatory results were obtained through the TLBO approach, with an MRR value of 3.1587 mg/min and a ROC of 71.9629 µm, in comparison to the PSO and desirability approaches.

Originality/value

The various challenges associated with the productive machining of aviation grade Inconel 625 superalloy have been explored experimentally. The conducted experimentation has been performed on the in-house fabricated micro-electrochemical setup capable of performing a variety of advanced machining operations at the miniaturized level. Further, the application of shaped tube drilling while processing aviation grade Inconel 625 superalloy has been explored with the developed micro-ECM set-up. Moreover, the performed microstructure analysis of the machined work samples has elaborated and explored the various associated surface integrity aspects which are quite crucial when it comes to real-life aerospace-related applications. The utility of designed experiments has further made the attempted experimental analysis more fruitful and qualitative too.

Details

Aircraft Engineering and Aerospace Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 9 September 2024

Talat Islam, Saima Ahmad and Arooba Chaudhary

The purpose of this paper is to examine curiosity as a distal predictor of knowledge sharing facilitated by informal learning. It also probes the boundary conditions imposed by…

Abstract

Purpose

The purpose of this paper is to examine curiosity as a distal predictor of knowledge sharing facilitated by informal learning. It also probes the boundary conditions imposed by ebullient supervision in the influence of curiosity on knowledge sharing.

Design/methodology/approach

The authors collected data through a two-wave survey of 349 knowledge workers in the IT sector and used structural equation modeling to analyze the data.

Findings

The results indicated a positive relationship between curiosity and knowledge sharing. In particular, informal learning was found to mediate the relationship between curiosity and knowledge sharing and ebullient supervision was identified as a significant condition that strengthens the effect of curiosity on informal learning.

Practical implications

Organizations can promote knowledge sharing by harnessing curiosity as an intrinsic motivator for employees to engage in informal learning. Moreover, the findings identified ebullient supervision as an extrinsic motivator within the work environment, suggesting its potential to enhance the impact of curiosity on knowledge sharing.

Originality/value

This paper broadens the limited literature on ebullient leadership by revealing how it strengthens the effects of curiosity and informal learning on knowledge sharing.

Details

International Journal of Manpower, vol. 45 no. 9
Type: Research Article
ISSN: 0143-7720

Keywords

Open Access
Article
Publication date: 2 July 2024

Rui M. Lima, Erik Teixeira Lopes, Derek Chaves Lopes, Bruno S. Gonçalves and Pedro G. Cunha

This work aims to integrate the concepts generated by a systematic literature review on patient flows in emergency departments (ED) to serve as a basis for developing a generic…

Abstract

Purpose

This work aims to integrate the concepts generated by a systematic literature review on patient flows in emergency departments (ED) to serve as a basis for developing a generic process model for ED.

Design/methodology/approach

A systematic literature review was conducted using PRISMA guidelines, considering Lean Healthcare interventions describing ED patients’ flows. The initial search found 141 articles and 18 were included in the systematic analysis. The literature analysis served as the basis for developing a generic process model for ED.

Findings

ED processes have been represented using different notations, such as value stream mapping and workflows. The main alternatives for starting events are arrival by ambulance or walk-in. The Manchester Triage Scale (MTS) was the most common protocol referred to in the literature. The most common end events are admission to a hospital, transfer to other facilities or admission to an ambulatory care system. The literature analysis allowed the development of a generic process model for emergency departments. Nevertheless, considering that several factors influence the process of an emergency department, such as pathologies, infrastructure, available teams and local regulations, modelling alternatives and challenges in each step of the process should be analysed according to the local context.

Originality/value

A generic business process model was developed using BPMN that can be used by practitioners and researchers to reduce the effort in the initial stages of design or improvement projects. Moreover, it’s a first step toward the development of generalizable and replicable solutions for emergency departments.

Details

Business Process Management Journal, vol. 30 no. 8
Type: Research Article
ISSN: 1463-7154

Keywords

Open Access
Article
Publication date: 16 May 2024

Oscar F. Bustinza, Ferran Vendrell-Herrero, Philip Davies and Glenn Parry

Responding to calls for deeper analysis of the conceptual foundations of service infusion in manufacturing, this paper examines the underlying assumptions that: (i) manufacturing…

Abstract

Purpose

Responding to calls for deeper analysis of the conceptual foundations of service infusion in manufacturing, this paper examines the underlying assumptions that: (i) manufacturing firms incorporating services follow a pathway, moving from pure-product to pure-service offerings, and (ii) profits increase linearly with this process. We propose that these assumptions are inconsistent with the premises of behavioural and learning theories.

Design/methodology/approach

Machine learning algorithms are applied to test whether a successive process, from a basic to a more advanced offering, creates optimal performance. The data were gathered through two surveys administered to USA manufacturing firms in 2021 and 2023. The first included a training sample comprising 225 firms, whilst the second encompassed a testing sample of 105 firms.

Findings

Analysis shows that following the base-intermediate-advanced services pathway is not the best predictor of optimal performance. Developing advanced services and then later adding less complex offerings supports better performance.

Practical implications

Manufacturing firms follow heterogeneous pathways in their service development journey. Non-servitised firms need to carefully consider their contextual conditions when selecting their initial service offering. Starting with a single service offering appears to be a superior strategy over providing multiple services.

Originality/value

The machine learning approach is novel to the field and captures the key conditions for manufacturers to successfully servitise. Insight is derived from the adoption and implementation year datasets for 17 types of services described in previous qualitative studies. The methods proposed can be extended to assess other process-based models in related management fields (e.g., sand cone).

Details

International Journal of Operations & Production Management, vol. 44 no. 13
Type: Research Article
ISSN: 0144-3577

Keywords

Article
Publication date: 13 August 2024

Wenshen Xu, Yifan Zhang, Xinhang Jiang, Jun Lian and Ye Lin

In the field of steel defect detection, the existing detection algorithms struggle to achieve a satisfactory balance between detection accuracy, computational cost and inference…

Abstract

Purpose

In the field of steel defect detection, the existing detection algorithms struggle to achieve a satisfactory balance between detection accuracy, computational cost and inference speed due to the interference from complex background information, the variety of defect types and significant variations in defect morphology. To solve this problem, this paper aims to propose an efficient detector based on multi-scale information extraction (MSI-YOLO), which uses YOLOv8s as the baseline model.

Design/methodology/approach

First, the authors introduce an efficient multi-scale convolution with different-sized convolution kernels, which enables the feature extraction network to accommodate significant variations in defect morphology. Furthermore, the authors introduce the channel prior convolutional attention mechanism, which allows the network to focus on defect areas and ignore complex background interference. Considering the lightweight design and accuracy improvement, the authors introduce a more lightweight feature fusion network (Slim-neck) to improve the fusion effect of feature maps.

Findings

MSI-YOLO achieves 79.9% mean average precision on the public data set Northeastern University (NEU)-DET, with a model size of only 19.0 MB and an frames per second of 62.5. Compared with other state-of-the-art detectors, MSI-YOLO greatly improves the recognition accuracy and has significant advantages in computational cost and inference speed. Additionally, the strong generalization ability of MSI-YOLO is verified on the collected industrial site steel data set.

Originality/value

This paper proposes an efficient steel defect detector with high accuracy, low computational cost, excellent detection speed and strong generalization ability, which is more valuable for practical applications in resource-limited industrial production.

Details

Robotic Intelligence and Automation, vol. 44 no. 6
Type: Research Article
ISSN: 2754-6969

Keywords

Article
Publication date: 6 August 2024

Stephanie Villers and Rumina Dhalla

Consumers often prefer sustainable goods and services but fail to follow through with purchases that reflect these espoused values. The green intention–outcome gap is studied in…

Abstract

Purpose

Consumers often prefer sustainable goods and services but fail to follow through with purchases that reflect these espoused values. The green intention–outcome gap is studied in many contexts but has yet to inform deathcare decisions. Industry reports suggest that most Americans prefer sustainable deathcare options, yet unsustainable corpse dispositions dominate the market. The purpose of this paper is to understand how history informs this phenonea.

Design/methodology/approach

This study looks to the past – using historical narrative analysis of deathcare trends and influential intermediaries – to understand the future of sustainable deathcare and the prospective role that marketers can play in bridging the gap between decedents’ preferences and survivors’ purchase outcomes.

Findings

Historical ritualization, medicalization and commercialization have resulted in the monopolization of traditional deathcare services. Mortuary professionals remain unresponsive to consumer preferences for sustainable alternatives.

Social implications

Socioeconomic shocks can allow humanity to reflect and transition from consumerism to sustainability. COVID-19 has led to greater awareness of self-mortality, and death has become less taboo. The slow market penetration of sustainable deathcare services suggests a lack of communication between a decedent and their survivors. Marketing scholars need to help marketing practitioners bridge the preference-outcome gap.

Originality/value

To the best of the authors’ knowledge, this study is amongst the first to examine how history informs the sustainable action–outcome gap for deathcare preferences in a post-COVID environment and the role that marketers can play in perpetuating change.

Details

Journal of Historical Research in Marketing, vol. 16 no. 4
Type: Research Article
ISSN: 1755-750X

Keywords

Article
Publication date: 14 February 2024

Ramesh Sattu, Simanchala Das and Lalatendu Kesari Jena

The purpose of our study was two-fold: (1) to examine the effect of perceived value derived from perceived benefits and sacrifices in the adoption of artificial intelligence (AI…

Abstract

Purpose

The purpose of our study was two-fold: (1) to examine the effect of perceived value derived from perceived benefits and sacrifices in the adoption of artificial intelligence (AI) in talent acquisition and (2) to investigate the moderating role of human resource (HR) readiness in the association between perceived value and AI adoption intention.

Design/methodology/approach

A structured questionnaire was administered to 198 talent acquisition executives and HR professionals of Indian IT companies based on a purposive sampling technique. Partial least squares structural equation modeling (PLS-SEM) was used on the Smart PLS 2.0 platform to analyse the data and test the model.

Findings

Results revealed that perceived benefits and sacrifices significantly predict perceived value which significantly affects the HR professional’s AI adoption intention. The study further found that HR readiness moderates the link between perceived value and the intention of HR professionals to adopt AI in the talent acquisition process in the Indian IT industry.

Practical implications

IT companies are advised to continuously monitor and evaluate the performance of AI tools to ensure that they are meeting the recruitment process needs to leverage AI’s benefits in talent acquisition. This study seeks to provide the impetus for a planned AI adoption in talent acquisition.

Originality/value

This research provides ample evidence for the existing technology adoption theories. It explored the predictors of adoption by validating the value-based adoption model in the Indian context. It provides valuable insights into the practice of acquiring talents in the IT sector using artificial intelligence.

Details

Journal of Organizational Effectiveness: People and Performance, vol. 11 no. 4
Type: Research Article
ISSN: 2051-6614

Keywords

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