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Article
Publication date: 23 January 2024

Young Jin Shin, Ebrahim Farrokh, Jaehoon Jung, Jaewon Lee and Hanbyul Kang

Despite the many advantages this type of equipment offers, there are still some major drawbacks. Linear cutting machine (LCM) cannot accurately simulate the true rock-cutting…

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Abstract

Purpose

Despite the many advantages this type of equipment offers, there are still some major drawbacks. Linear cutting machine (LCM) cannot accurately simulate the true rock-cutting process as 1. it does not account for the circular path along which tunnel boring machine (TBM) disk cutters cut the tunnel face, 2. it does not accurately model the position of a disk cutter on the cutterhead, 3. it cannot perfectly replicate the rotational speed of a TBM. To enhance the knowledge of these issues and in order to mimic the real rock-cutting process, a new lab testing equipment was developed by Hyundai Engineering and Construction.

Design/methodology/approach

A new testing machine called rotary cutting machine (RCM) is designed to simulate the excavation process of hard-rock TBMs and includes features such as TBM cutterhead, RPM simulation, constant normal force mode and constant penetration rate mode. Two sets of tests were conducted on Hwandeung granite using different disk cutter sizes to analyze the cutting forces in various excavation modes. The results are analyzed using statistical analysis and dimensional analysis. A new model is generated using dimensional analysis, and its results are compared against the results of actual cases.

Findings

The effectiveness of the new RCM test was demonstrated in its ability to apply various modes of excavation. Initial analysis of chip size revealed that the thickness of the chips is largely dependent on the cutter spacing. Tests with varying RPM showed that an increase in RPM results in an increase in the normal force and rolling force. The cutting coefficient (CC) demonstrated a linear correlation with penetration. The optimal specific energy is achieved at an S/p ratio of around 15. However, a slightly lower S/p ratio can also be used in the design if the cutter specifications permit. A dimensional analysis was utilized to develop a new RCM model based on the results from approximately 1200 tests. The model's applicability was demonstrated through a comparison of TBM penetration data from 26 tunnel projects globally. Results indicated that the predicted penetration rates by the RCM test model were in good agreement with actual rates for the majority of cases. However, further investigation is necessary for softer rock types, which will be conducted in the future using concrete blocks.

Originality/value

The originality of the research lies in the development of Hyundai Engineering and Construction’s advanced full-scale laboratory rotary cutting machine (RCM), which accurately replicates the excavation process of hard-rock tunnel boring machines (TBMs). The study provides valuable insights into cutting forces, chip size, specific energy, RPM and excavation modes, enhancing understanding and decision-making in hard-rock excavation processes. The research also presents a new RCM model validated against TBM penetration data, demonstrating its practical applicability and predictive accuracy.

Details

Engineering Computations, vol. 41 no. 1
Type: Research Article
ISSN: 0264-4401

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Article
Publication date: 1 December 2001

George Stylios

Discusses the 6th ITCRR, its breadth of textile and clothing research activity, plus the encouragement given to workers in this field and its related areas. States that, within…

1089

Abstract

Discusses the 6th ITCRR, its breadth of textile and clothing research activity, plus the encouragement given to workers in this field and its related areas. States that, within the newer research areas under the microscope of the community involved, technical textiles focuses on new, ‘smart’ garments and the initiatives in this field in both the UK and the international community at large. Covers this subject at length.

Details

International Journal of Clothing Science and Technology, vol. 13 no. 6
Type: Research Article
ISSN: 0955-6222

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Article
Publication date: 5 September 2023

Yoo Na Youm, Jin Young Lee and Chong Kyoon Lee

Considering that corporate social responsibility (CSR) addresses a wide range of claims from multiple stakeholders, companies must determine their CSR scope. This paper aims to…

204

Abstract

Purpose

Considering that corporate social responsibility (CSR) addresses a wide range of claims from multiple stakeholders, companies must determine their CSR scope. This paper aims to examine what factors influence a firm’s decision in its scope of CSR. In exploring what factors influence CSR scope, the authors examine the relationship between a firm’s prosocial orientation and CSR and further examine its boundary conditions by the existence of CSR department.

Design/methodology/approach

This study uses a data set – the Social Value Survey – administered by the Center for Social Value Enhancement Studies based in the context of Korean firms. Based on 86 firm responses, statistical models were performed to test hypotheses.

Findings

The findings show that a firm’s prosocial orientation is positively associated with CSR scope. Further, this study shows that there is a negative moderating effect of the CSR department for the relationship between the prosocial orientation and CSR scope.

Originality/value

This study attempts to contribute to the extensive line of work on the antecedents of CSR by exploring the simultaneous existence of various drivers of CSR and the interplay between the drivers. And this study enhances the understanding on what factors influence the decision of CSR scope within a complex system of diverse stakeholder relationships. Additionally, this study has potentially shed light on the role of CSR departments to determine CSR scope.

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Publication date: 9 May 2022

Tobin Im

Abstract

Details

Transformation of Korean Politics and Administration: A 30 Year Retrospective
Type: Book
ISBN: 978-1-80382-116-0

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Article
Publication date: 16 July 2021

Hyunjin Kang, Wonsun Shin and Junru Huang

This study investigates how different parental mediation strategies (active versus restrictive) and teen Douyin users' privacy risk perceptions are associated with their privacy…

3432

Abstract

Purpose

This study investigates how different parental mediation strategies (active versus restrictive) and teen Douyin users' privacy risk perceptions are associated with their privacy management behaviors.

Design/methodology/approach

An online survey with teen Douyin users (N = 500) was administered in mainland China.

Findings

Perceived privacy risk leads teenagers to implement stricter privacy management strategies. However, different types of parental mediation have different impacts on teens' privacy management behaviors. Discussion-based active mediation is positively correlated with privacy disclosure and privacy boundary linkage, while rule-based restrictive mediation is positively associated with privacy boundary control. In addition, active mediation encourages teens to use their own judgment about privacy risks when deciding how much personal information to disclose and with whom they want to share their information. Conversely, restrictive mediation results in teens making decisions about disclosing private information without taking their own risk assessments into account.

Originality/value

Video-sharing social media platforms like TikTok and Douyin have become a cultural trend among teen social media users. However, loss of privacy is a potentially serious downside of using such platforms. Despite the platforms' popularity among this age group, little is known about the ways teens manage their privacy on such social media platforms. By examining how teens' privacy risk perception and parental intervention shape three different aspects of privacy boundary management (i.e. privacy disclosure, privacy boundary linkage, and privacy boundary control), this study provides a comprehensive understanding of teen Douyin users' privacy management.

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Article
Publication date: 4 July 2018

Tamgid Ahmed Chowdhury and Tania Akter

The purpose of this paper is threefold: first, to identify a list of fashion attributes preferred by young Bangladeshi consumers while buying casual clothes; second, to test the…

1485

Abstract

Purpose

The purpose of this paper is threefold: first, to identify a list of fashion attributes preferred by young Bangladeshi consumers while buying casual clothes; second, to test the applicability of Kano’s quality theory in the apparel industry; and, finally, to explore the differences in fashion priorities between male and female consumers.

Design/methodology/approach

This study is based on primary data collected through a survey from 1,177 young consumers of urban Bangladesh. Structural equation modeling was used to develop the attribute index. Also, convergent and discriminant validity and construct reliability of the index were tested.

Findings

The study offers a four-dimensional 19-item index representing the desirable fashion attributes. This paper also confirms the applicability of Kano’s theory in the apparel industry. Results revealed that “well-designed casual attires” and “discount offers” are top-ranking attributes as perceived by both male and female consumers. However, there are differences in the preferences. Women prioritized irritation-free, durable and soft fabric, whereas men preferred attributes such as suitability of color and functionality in the workplace.

Practical implications

The findings of the study provide clothing suppliers of Bangladesh with information that may be utilized while preparing their options. For instance, as casual clothes are frequently worn and washed, a quality fabric that looks good even after several washes is highly recommended. Dress manufacturers need to offer colorful attires to women, whereas for men, more color options should be available. Casual clothes should be made in a way that they are acceptable in the community and workplace.

Originality/value

As research on exploring desirable fashion qualities in developing markets (especially in South Asian region) is rare, this study is contributing to the literature by offering validated apparel attribute index.

Details

Journal of Fashion Marketing and Management: An International Journal, vol. 22 no. 4
Type: Research Article
ISSN: 1361-2026

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Article
Publication date: 30 August 2021

Zeyen Loh and Siti Hasnah Hassan

This study aims to determine the repurchase intention of food truck products based on perceived risks and perceived benefits by consumers within the context of Malaysia. Recently…

3189

Abstract

Purpose

This study aims to determine the repurchase intention of food truck products based on perceived risks and perceived benefits by consumers within the context of Malaysia. Recently, the food truck industry has been expanding as customers begin to explore alternatives for food convenience. However, there are not many studies carried out on this topic, especially in Asian countries. This study will fill the gaps on the factors that affect repurchase intention, especially perceived risks and perceived benefits of food trucks products.

Design/methodology/approach

A cross-sectional online survey was conducted through Facebook Messenger and WhatsApp on consumers with prior experience in buying food truck products. The partial least square (PLS) modelling using the SmartPLS software was employed to analyse the data.

Findings

The results from 294 food truck consumers showed that perceived benefit, food safety, attitude and subjective norm significantly influence food truck products' repurchase intention. On the other hand, perceived risk towards the environment and perceived behavioural control do not substantially affect food truck products' repurchase intention.

Research limitations/implications

The data collected were related only to the food trucker's customer that operates in Malaysia. Thus, the results might be only applicable to similar other Asian or developing countries.

Practical implications

The results provided some managerial indicators to improve the level of business efficiency among food truck operators. Besides, marketers and policymakers can develop effective strategies and policies based on this study to develop this industry further.

Originality/value

The study gives a fresh overview of how the food truck business can improve its services in developing countries. The results offer a competitive advantage and how to strengthen customer retention that can improve business performance.

Details

British Food Journal, vol. 124 no. 4
Type: Research Article
ISSN: 0007-070X

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Article
Publication date: 16 February 2022

Yoonhee Park, Jin Gu Lee, Hong Jeon Jeong, Min Sub Lim and Mi-Rae Oh

The purpose of this study is to investigate the structural relationships between protean career attitude, career resilience, proactive career behavior and external employability.

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Abstract

Purpose

The purpose of this study is to investigate the structural relationships between protean career attitude, career resilience, proactive career behavior and external employability.

Design/methodology/approach

This study sampled 212 training apprentice employees who participated in training programs using a proportional stratified sampling in South Korea. The study tested the research model using structural equation modeling.

Findings

This study revealed that protean career attitude influenced external employability through career resilience and proactive career behavior. Career resilience fully mediated the relationship between protean career attitude and external employability and partially mediated protean career attitude and proactive career behavior. Proactive career behavior also mediated the relationship between protean career attitude and external employability.

Research limitations/implications

This study has a limitation by relying on cross-sectional data. In terms of theoretical implications, this study can add new knowledge to the protean career research by demonstrating that the protean career attitude influences perceived external employability through career resilience and proactive career behavior for the sample of young training apprentice employees.

Originality/value

This study uncovers the dynamic processes between protean career attitude and perceived external employability. Moreover, this study’s sample is significant because training apprentice employees are mostly young in their 20s and 30s with less than three years of working experience and working in small and medium-sized enterprises in South Korea.

Details

Industrial and Commercial Training, vol. 54 no. 2
Type: Research Article
ISSN: 0019-7858

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Article
Publication date: 8 February 2016

Steven Chen

The purpose of this paper is to outline a framework for marketing cultural goods (e.g. music) to global markets by examining modes of entry and positioning strategies used by…

10580

Abstract

Purpose

The purpose of this paper is to outline a framework for marketing cultural goods (e.g. music) to global markets by examining modes of entry and positioning strategies used by media producers of the South Korean music industry.

Design/methodology/approach

An historic analysis was implemented to investigate the modalities and structures through which cultural products are produced and disseminated. Data for this study came from 314 articles collected from www.allkpop.com, a leading English-language, South Korean popular culture news site.

Findings

The cultural technology framework consists of the institutionalization of cultural technology, exportation of cultural content, collaborations with local talent, and joint ventures with local markets.

Research limitations/implications

The findings emerge from an analysis of South Korean popular music industries, and further research is needed to generalize the results across cultural industries.

Practical implications

The cultural technology framework can be applied to cultural industries such as music, film, comics, and art, where culture and language could be barriers to adoption.

Originality/value

This study outlines a framework for the modes of entry and positioning strategies of cultural goods (e.g. music) in international markets. Extant literature has examined global marketing from the purview of durable consumer goods and brands, with limited insights into cultural products. More broadly, this paper addresses the call for more qualitative inquiry into international marketing topics.

Details

International Marketing Review, vol. 33 no. 1
Type: Research Article
ISSN: 0265-1335

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Article
Publication date: 11 February 2021

Negin Dahya, W.E. King, Kung Jin Lee and Jin Ha Lee

Virtual reality (VR) is becoming a more available technology including in public spaces like libraries. The value and role of VR as a tool for learning and social engagement are…

4397

Abstract

Purpose

Virtual reality (VR) is becoming a more available technology including in public spaces like libraries. The value and role of VR as a tool for learning and social engagement are unclear. The purpose of this paper is to explore the ways in which library patrons and librarians perceive VR and experience VR through library drop-in programs.

Design/methodology/approach

This paper is based on research conducted in seven Washington State Libraries where VR was adopted for drop-in programming for the first time. Data was collected between March and June 2018 and involved interviews with librarians and patrons, a patron user experience survey, and observational field notes from researchers on site during library programs.

Findings

Findings are presented in relation to user perceptions of VR compared to their actual VR experiences, and in relation to informal learning and social engagements. The authors frame the analysis and discussion in relation to sociotechnical imaginaries – culturally situated ideas about the relationship between society and technology, and considering the larger cultural landscape that informs collective views about the present and future.

Social implications

The paper discusses pending and potential inequalities related to gender, race and class in conversation with technology industry and VR. Issues discussed include unequal access to technology in public libraries and representation of minoritized groups in VR.

Originality/value

This work takes a critical perspective considering the inequities in relation to mainstreaming VR through public spaces like libraries.

Details

Journal of Documentation, vol. 77 no. 3
Type: Research Article
ISSN: 0022-0418

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