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Article
Publication date: 1 September 2004

Hao‐Chih Liu, Sunyoup Lee, Sangkyun Kang, Christopher F. Edwards and Fritz B. Prinz

A rapid prototyping process applying ceramic gelcasting and assembly mould shape deposition manufacturing has been developed to fabricate mesoscale silicon nitride components with…

776

Abstract

A rapid prototyping process applying ceramic gelcasting and assembly mould shape deposition manufacturing has been developed to fabricate mesoscale silicon nitride components with complex 3D geometry. An overview of the fabrication of Si3N4 burner arrays for gas turbine reheat applications is demonstrated. The design of burner arrays features internal fuel passages and integrated fuel injection elements, which cannot be manufactured by conventional methods. Geometrical decomposition of design models and recent developments in ceramic processing provide a novel approach in prototyping the burner arrays. In this paper, issues of materials compatibility, mould fabrication strategies, ceramic processing, and design iterations will be discussed along with the functional test of the 4×4 burner array.

Details

Rapid Prototyping Journal, vol. 10 no. 4
Type: Research Article
ISSN: 1355-2546

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Book part
Publication date: 5 June 2023

Jan Macfarlane and Jerome Carson

Abstract

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Positive Psychology for Healthcare Professionals: A Toolkit for Improving Wellbeing
Type: Book
ISBN: 978-1-80455-957-4

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Book part
Publication date: 22 May 2019

Greg Morgan

Abstract

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Rewriting Leadership with Narrative Intelligence: How Leaders Can Thrive in Complex, Confusing and Contradictory Times
Type: Book
ISBN: 978-1-78756-776-4

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Article
Publication date: 1 December 2006

Jessica Asscher, Jo Hermanns and Maja Deković

The prevalence, correlates (child behaviour problems and negative parenting) and determinants (risk and protective factors) of parental need for support were examined in a…

442

Abstract

The prevalence, correlates (child behaviour problems and negative parenting) and determinants (risk and protective factors) of parental need for support were examined in a community sample of 177 mothers with a child aged 1.5‐3.5 years, in order to draw a profile of families that need parenting support. A substantial number of the mothers reported needing support (40% reported need for information, 10% reported family and social support needs). This need was related to child behaviour problems and to negative parenting. Maternal depression, difficult temperament of the child and negative life events, as well as total number of risk factors, significantly predicted the need for support. Satisfaction with support (but not number of support sources) acted as a protective factor.

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Journal of Children's Services, vol. 1 no. 4
Type: Research Article
ISSN: 1746-6660

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Book part
Publication date: 22 May 2019

Greg Morgan

Abstract

Details

Rewriting Leadership with Narrative Intelligence: How Leaders Can Thrive in Complex, Confusing and Contradictory Times
Type: Book
ISBN: 978-1-78756-776-4

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Article
Publication date: 12 March 2018

Jingbin Hao, Xin Chen, Hao Liu and Shengping Ye

To remanufacture a disused part, a hybrid process needs to be taken in part production. Therefore, a reasonable machining route is necessary to be developed for the hybrid…

488

Abstract

Purpose

To remanufacture a disused part, a hybrid process needs to be taken in part production. Therefore, a reasonable machining route is necessary to be developed for the hybrid process. This paper aims to develop a novel process planning algorithm for additive and subtractive manufacturing (ASM) system to achieve this purpose.

Design/methodology/approach

First, a skeleton of the model is generated by using thinning algorithm. Then, the skeleton tree is constructed based on topological structure and shape feature. Further, a feature matching algorithm is developed for recognizing the different features between the initial model and the final model based on the skeleton tree. Finally, a reasonable hybrid machining route of the ASM system is generated in consideration of the machining method of each different sub-feature.

Findings

This paper proposes a hybrid process planning algorithm for the ASM system. Further, it generates new process planning insights on the hybrid process service provider market.

Practical implications

The proposed process planning algorithm enables engineers to obtain a proper hybrid machining route before product fabrication. And thereby, it extends the machining capability of the hybrid process to manufacture some parts accurately and efficiently.

Originality/value

This study addresses one gap in the hybrid process literature. It develops the first hybrid process planning strategy for remanufacturing of disused parts based on skeleton tree matching, which generates a more proper hybrid machining route than the currently available hybrid strategy studies. Also, this study provides technical support for the ASM system to repair damaged parts.

Details

Rapid Prototyping Journal, vol. 24 no. 2
Type: Research Article
ISSN: 1355-2546

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Article
Publication date: 21 November 2016

Zheshi Bao

The purpose of this paper is to explore the determinants of continuance intention of social networking site (SNS) users through a new perspective and discuss how to retain SNS…

1766

Abstract

Purpose

The purpose of this paper is to explore the determinants of continuance intention of social networking site (SNS) users through a new perspective and discuss how to retain SNS users.

Design/methodology/approach

The author proposed a research model by integrating network externalities and social support. Three dimensions of social support and two types of network externalities were analyzed, respectively, to explore the direct and indirect effects on continuance intention. Online questionnaires were adopted to collect data, and 513 valid samples were analyzed by structural equation modeling approach.

Findings

The findings show that network externalities have a significant indirect effect on user’ continuance intention through the mediation effects of social support, and among the three dimensions of social support, network management plays a more important role on continuance intention.

Research limitations/implications

The findings suggest that network externalities can trigger the function of social support to keep the “stickiness” of SNS users, and network management is the key dimension of online social support. Some other theoretical and practical implications are also provided.

Originality/value

The study is novel in exploring users’ continuance intention of SNSs by integrating social support and network externalities. Meanwhile, the author also intends to compare the effect of different dimensions of social support on SNS usage and discuss their internal relationships.

Details

Aslib Journal of Information Management, vol. 68 no. 6
Type: Research Article
ISSN: 2050-3806

Keywords

Available. Open Access. Open Access
Article
Publication date: 17 August 2021

Oliver Bischoff and Stefan Seuring

Blockchain technology is provoking significant disruptions, thereby affecting supply chain management. This study endeavoured to advance research regarding blockchain-based supply…

6955

Abstract

Purpose

Blockchain technology is provoking significant disruptions, thereby affecting supply chain management. This study endeavoured to advance research regarding blockchain-based supply chain traceability by identifying the opportunities and limitations that accompany the adoption of public blockchains. Therefore, the purpose of the study is to contribute to contemporary supply chain research by an assessment of blockchain technology and its linkages to traceability.

Design/methodology/approach

This paper is conceptual. The authors summarised the relevant literature on the concepts of supply chain traceability, conceptualised key elements exclusive to the public blockchain and highlighted opportunities and limitations in implementing traceability using blockchains.

Findings

Incompatibilities were identified between general traceability and the public blockchain. However, when embracing the blockchain's privacy model, the blockchains can support information exchange in supply chains where vulnerability towards third parties, the confidentiality of information, or the privacy of participants are concerns. Furthermore, the public blockchain can support areas of supply chains where institutional interest is lacking.

Originality/value

This is one of the first papers in an international supply chain management journal to critically analyse the intersection of specific blockchain characteristics and supply chain traceability requirements. The authors thereby add to the discussion of designs for a disintermediated, peer-to-peer models and guide researchers and practitioners alike in exploring the application of disruptive change from blockchain technologies. By setting focus on the privacy model, the paper identifies the potential application and future research approaches to exploit the elementary strength of the blockchain.

Details

Modern Supply Chain Research and Applications, vol. 3 no. 3
Type: Research Article
ISSN: 2631-3871

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Article
Publication date: 20 April 2015

Brian N. Turner and Scott A Gold

The purpose of this paper is to critically review the literature related to dimensional accuracy and surface roughness for fused deposition modeling and similar extrusion-based…

11333

Abstract

Purpose

The purpose of this paper is to critically review the literature related to dimensional accuracy and surface roughness for fused deposition modeling and similar extrusion-based additive manufacturing or rapid prototyping processes.

Design/methodology/approach

A systematic review of the literature was carried out by focusing on the relationship between process and product design parameters and the dimensional and surface properties of finished parts. Methods for evaluating these performance parameters are also reviewed.

Findings

Fused deposition modeling® and related processes are the most widely used polymer rapid prototyping processes. For many applications, resolution, dimensional accuracy and surface roughness are among the most important properties in final parts. The influence of feedstock properties and system design on dimensional accuracy and resolution is reviewed. Thermal warping and shrinkage are often major sources of dimensional error in finished parts. This phenomenon is explored along with various approaches for evaluating dimensional accuracy. Product design parameters, in particular, slice height, strongly impact surface roughness. A geometric model for surface roughness is also reviewed.

Originality/value

This represents the first review of extrusion AM processes focusing on dimensional accuracy and surface roughness. Understanding and improving relationships between materials, design parameters and the ultimate properties of finished parts will be key to improving extrusion AM processes and expanding their applications.

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Article
Publication date: 1 December 2020

Deepu TS and Ravi V

Supply chain efficiency can be enhanced by integrating the activities in supply chain through digitalization. Advancements in digital technologies has facilitated in designing…

767

Abstract

Purpose

Supply chain efficiency can be enhanced by integrating the activities in supply chain through digitalization. Advancements in digital technologies has facilitated in designing robust and dynamic supply chain by bringing in efficiency, transparency and reduction in lead times. This research tries to identify and prioritize the customer requirements and design requirements for effective integration of supply chain through digitalization.

Design/methodology/approach

The key nine customer requirements and 16 design requirements applicable for an electronics company were shortlisted in consultation with the experts from the company and academia. An integrated analytic network process (ANP) and quality function deployment (QFD) methodology has been applied for prioritizing the customer and design requirements. The relative importance and interdependence of these requirements were identified and a House of Quality (HOQ) is constructed.

Findings

The HOQ constructed has prioritized and identified interrelationships among customer requirements and design requirements for effective supply chain digitalization. These findings could be effectively used by managers for planning the objectives on long-term, medium-term and short-term basis.

Originality/value

This study tries to bridge the gap of identifying and prioritizing the design and customer requirements for effective supply chain integration through digitalization. The results could aid practicing managers and academicians in decision-making on supply chain digitalization process.

Details

Benchmarking: An International Journal, vol. 28 no. 4
Type: Research Article
ISSN: 1463-5771

Keywords

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