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Open Access
Article
Publication date: 14 March 2022

Luke McCully, Hung Cao, Monica Wachowicz, Stephanie Champion and Patricia A.H. Williams

A new research domain known as the Quantified Self has recently emerged and is described as gaining self-knowledge through using wearable technology to acquire information on…

Abstract

Purpose

A new research domain known as the Quantified Self has recently emerged and is described as gaining self-knowledge through using wearable technology to acquire information on self-monitoring activities and physical health related problems. However, very little is known about the impact of time window models on discovering self-quantified patterns that can yield new self-knowledge insights. This paper aims to discover the self-quantified patterns using multi-time window models.

Design/methodology/approach

This paper proposes a multi-time window analytical workflow developed to support the streaming k-means clustering algorithm, based on an online/offline approach that combines both sliding and damped time window models. An intervention experiment with 15 participants is used to gather Fitbit data logs and implement the proposed analytical workflow.

Findings

The clustering results reveal the impact of a time window model has on exploring the evolution of micro-clusters and the labelling of macro-clusters to accurately explain regular and irregular individual physical behaviour.

Originality/value

The preliminary results demonstrate the impact they have on finding meaningful patterns.

Details

Applied Computing and Informatics, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2634-1964

Keywords

Article
Publication date: 19 September 2022

Hang Cao, Kangchen Wang, Shenyou Song, Xiaohu Zhang, Qianyu Gao and Yuanyuan Liu

This paper aims to reveal the corrosion mechanism and corrosion development regulation of marine engineering structural steel in the marine environment and provide constructive…

Abstract

Purpose

This paper aims to reveal the corrosion mechanism and corrosion development regulation of marine engineering structural steel in the marine environment and provide constructive suggestions for marine immersed tunnel engineering.

Design/methodology/approach

In this study, marine engineering structural steel’s behavior and corrosion prediction were carried out under the conditions of no cathodic protection and under-protection by artificially adding dissolved oxygen in a simulated seawater solution as a depolarizing agent.

Findings

Marine resources are rich in China. With the development of the economy and the improvement of engineering technology, marine engineering structural steel is used more and more widely. Engineering structural steel has a great risk of corrosion failure for long-term service in seawater, as seawater is a kind of corrosive medium containing various salts. At present, there are few projects and research studies available on the corrosion in the seawater environment of Q390C engineering structural steel, which is used in the Shenzhen–Zhongshan Link immersed tunnel steel shell at home and abroad. It cannot guide the corrosion of immersed tunnel steel shells in the ocean.

Originality/value

In this paper, the corrosion mechanism and corrosion development regulation of marine engineering structural steel in the marine environment are studied by accelerated corrosion test in the laboratory, which is of great significance to ensure the long-life durability of the immersed tunnel in marine engineering.

Details

Anti-Corrosion Methods and Materials, vol. 69 no. 6
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 16 December 2019

Chihli Hung and You-Xin Cao

This paper aims to propose a novel approach which integrates collocations and domain concepts for Chinese cosmetic word of mouth (WOM) sentiment classification. Most sentiment…

Abstract

Purpose

This paper aims to propose a novel approach which integrates collocations and domain concepts for Chinese cosmetic word of mouth (WOM) sentiment classification. Most sentiment analysis works by collecting sentiment scores from each unigram or bigram. However, not every unigram or bigram in a WOM document contains sentiments. Chinese collocations consist of the main sentiments of WOM. This paper reduces the complexity of the document dimensionality and makes an improvement for sentiment classification.

Design/methodology/approach

This paper builds two contextual lexicons for feature words and sentiment words, respectively. Based on these contextual lexicons, this paper uses the techniques of associated rules and mutual information to build possible Chinese collocation sets. This paper applies preference vector modelling as the vector representation approach to catch the relationship between Chinese collocations and their associated concepts.

Findings

This paper compares the proposed preference vector models with benchmarks, using three classification techniques (i.e. support vector machine, J48 decision tree and multilayer perceptron). According to the experimental results, the proposed models outperform all benchmarks evaluated by the criterion of accuracy.

Originality/value

This paper focuses on Chinese collocations and proposes a novel research approach for sentiment classification. The Chinese collocations used in this paper are adaptable to the content and domains. Finally, this paper integrates collocations with the preference vector modelling approach, which not only achieves a better sentiment classification performance for Chinese WOM documents but also avoids the curse of dimensionality.

Details

The Electronic Library , vol. 38 no. 1
Type: Research Article
ISSN: 0264-0473

Keywords

Article
Publication date: 3 April 2007

Lun‐Chen Hsu, Thermpon Ativanichayaphong, Hung Cao, Jeongsik Sin, Mason Graff, Harry E. Stephanou and J.‐C. Chiao

Selection of a gas sensor requires consideration of environmental effects that can significantly affect performance and cause false alarms. Metal‐oxide sensors have high…

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Abstract

Purpose

Selection of a gas sensor requires consideration of environmental effects that can significantly affect performance and cause false alarms. Metal‐oxide sensors have high sensitivity due to the specific interactions of gas molecules with thin metal‐oxide films, however, the films can also be sensitive to variations in temperature and humidity and some oxidizing and deoxidizing gases. The purpose of this paper is to evaluate the environmental effect on metal‐oxide nitrogen dioxide (NO2) sensors quantitatively.

Design/methodology/approach

Three commercial metal‐oxide NO2 sensors and one electrochemical sensor were tested simultaneously under controlled gas concentrations and various environmental conditions. For this test, a customized sensor testing setup was prepared including a gas mixer, heating module, gas chamber, electronics, and data acquisition units.

Findings

Based on the test results for NO2 gas concentrations ranging from 0 to 10 ppm, the metal‐oxide sensors showed significant signal variations at elevated temperatures and humidity. The results provide overall sensor performance. Linearity, repeatability, selectivity and sensitivity of the metal‐oxide sensors were measured and compared to an electrochemical sensor.

Originality/value

A systematic evaluation to characterize metal‐oxide NO2 sensors is presented, and their comparison regarding sensitivity, selectivity, linearity, and dependence on humidity and temperature is reported. The result provides sensor performance data and guideline for sensor evaluation.

Details

Sensor Review, vol. 27 no. 2
Type: Research Article
ISSN: 0260-2288

Keywords

Article
Publication date: 2 October 2023

Beatriz Lopes Cancela, Arnaldo Coelho and Maria Elisabete Neves

This study aims to investigate the role of green strategic alliances (GSAs) in fostering a green shared vision (GSVis) and green shared value (GSV) and their impact on green…

Abstract

Purpose

This study aims to investigate the role of green strategic alliances (GSAs) in fostering a green shared vision (GSVis) and green shared value (GSV) and their impact on green organizational identity (GOI) and sustainability.

Design/methodology/approach

The authors employed structural equation modeling to analyze data collected through a 60-item questionnaire administered in Portugal and China, allowing the authors to test their theoretical model.

Findings

The findings of the authors' study indicate that green strategic alliances have a positive influence on the development of a GSVis and GSV in both countries. This, in turn, contributes to improved sustainability and the establishment of a GOI. Furthermore, the authors' results demonstrate that these alliances enhance GSV, resulting in enhanced sustainability performance and a stronger green identity, with a notable increase in awareness of environmental and social practices.

Originality/value

This article is innovative as it applies organizational learning and value creation theories to gain a deeper understanding of how alliances can shape the green identity of companies and contribute to their overall sustainability.

Details

Benchmarking: An International Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1463-5771

Keywords

Article
Publication date: 30 April 2019

Hyunseok Jang, Songyon Shin, Myonggi Hong and Young-Shin Choi

The purpose of this paper is to test the dual frames of reference theory. For the test, the reference point hypothesis examines whether the difference in the quality of social…

Abstract

Purpose

The purpose of this paper is to test the dual frames of reference theory. For the test, the reference point hypothesis examines whether the difference in the quality of social conditions between the home and host countries determines the variations of immigrants’ trust in the institutions of their host country.

Design/methodology/approach

By using hierarchical linear modeling analysis, the current study examines whether “difference of homicide rate from South Korea” or “difference of level of democracy from South Korea” influences immigrants’ confidence in the police. Using data collected from nine different immigrant groups in South Korea, the current study examined both country-level factors as well as individual-level factors.

Findings

According to the analysis results, the difference of level of democracy from South Korea significantly influenced immigrants’ confidence in the South Korean police. Specifically, when immigrants came from democratically under-developed countries, they showed a relatively high level of confidence in the South Korean police.

Originality/value

Confidence in the police among the first generation of immigrants has recently attracted increasing attention. However, no previous studies have examined immigrants’ confidence in the police within an Asian country. Thus, the current study might contribute to generating better police performances toward first-generation immigrants who tend to be discriminated against and are also vulnerable to various forms of victimization because of their new status in a new society.

Details

Policing: An International Journal, vol. 42 no. 5
Type: Research Article
ISSN: 1363-951X

Keywords

Article
Publication date: 15 May 2023

Luiz Eduardo Gaio and Daniel Henrique Dario Capitani

This study investigates the impacts of the Russia–Ukraine conflict on the cross-correlation between agricultural commodity prices and crude oil prices.

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Abstract

Purpose

This study investigates the impacts of the Russia–Ukraine conflict on the cross-correlation between agricultural commodity prices and crude oil prices.

Design/methodology/approach

The authors used MultiFractal Detrended Fluctuation Cross-Correlation Analysis (MF-X-DFA) to explore the correlation behavior before and during conflict. The authors analyzed the price connections between future prices for crude oil and agricultural commodities. Data consists of daily futures price returns for agricultural commodities (Corn, Soybean and Wheat) and Crude Oil (Brent) traded on the Chicago Mercantile Exchange from Aug 3, 2020, to July 29, 2022.

Findings

The results suggest that cross-correlation behavior changed after the conflict. The multifractal behavior was observed in the cross correlations. The Russia–Ukraine conflict caused an increase in the series' fractal strength. The study findings showed that the correlations involving the wheat market were higher and anti-persistent behavior was observed.

Research limitations/implications

The study was limited by the number of observations after the Russia–Ukraine conflict.

Originality/value

This study contributes to the literature that investigates the impact of the Russia–Ukraine conflict on the financial market. As this is a recent event, as far as we know, we did not find another study that investigated cross-correlation in agricultural commodities using multifractal analysis.

Details

Journal of Agribusiness in Developing and Emerging Economies, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2044-0839

Keywords

Article
Publication date: 11 July 2008

Ning Cao, Zhiming Zhang, Kin Man To and Keng Po Ng

The purpose of this paper is to reveal the empirical issues of the implementation of coordination for textile‐apparel supply chains.

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Abstract

Purpose

The purpose of this paper is to reveal the empirical issues of the implementation of coordination for textile‐apparel supply chains.

Design/methodology/approach

Employing case study, the paper examines three different types of coordination practice in three different structures of textile‐apparel supply chains: vertical integration chain, efficiency oriented chain and 3P‐hub chain. The coordinators are three leading Hong Kong based international textiles and apparel companies in these cases. The case sources are published articles, company web sites and some open seminars offered by the case companies.

Findings

In textile and apparel industries, brand owners generally coordinate the supply chain. There are also other coordination practices in industries. Through the research observations and analyses in the cases it is found that the integrated company, powerful garment manufacturer and trade agent play the role of coordinators in vertical integration chain, efficiency oriented chain and 3P‐hub chain, respectively. No matter what type of coordination practice, information sharing and product flow coordination should be comprehensive. Coordinators are the information centers of the whole supply chain. They should have power to manage the supply chain. They should actively integrate the whole chain for maximum total profitability.

Research limitations/implications

This paper is just an overview of coordination practice in textile‐apparel supply chains. The case sources are published articles, company web sites and some open seminars made by the case companies. The methodology should be more systematic.

Originality/value

Coordination in textile‐apparel supply chains is still an unresolved question both from the theoretic and practical points of view. This paper fills in some of the gaps.

Details

Journal of Fashion Marketing and Management: An International Journal, vol. 12 no. 3
Type: Research Article
ISSN: 1361-2026

Keywords

Article
Publication date: 12 September 2023

Mimi Li, Wenqing Xu, Weiwei Liu and Huiyi Cao

This study aims to explore the patterns and transformational dynamics of the executive–interpreter network in the innovation processes of small- and medium-sized enterprises in…

Abstract

Purpose

This study aims to explore the patterns and transformational dynamics of the executive–interpreter network in the innovation processes of small- and medium-sized enterprises in hospitality.

Design/methodology/approach

Grounded in social network theory and adopting a case-based approach, this study features a multi-case design focusing on three Chinese boutique hotels. Data were collected through Web page and document reviews, participant observations and semistructured interviews.

Findings

Results capture how executive–interpreter network dynamics contribute to innovation in small- and medium-sized hotels. Key factors in social networks (e.g. size, scope and strength) shift throughout innovation. This study presents a design-driven approach as a means of innovation. Findings also delineate the network development conditions under which innovation dynamically occurs in boutique hotels.

Practical implications

Practical implications center on how network dynamics help small- and medium-sized hotels innovate more effectively. These insights can assist hotel operators and prospective market entrants in improving their hotels’ performance and competitiveness.

Originality/value

This study blends social network theory with a design-driven approach to explore innovation mechanisms in small- and medium-sized hotels. It offers empirical evidence for practitioners regarding design-driven innovation. Findings enrich the body of knowledge on both design-driven innovation theory and hospitality innovation.

Details

International Journal of Contemporary Hospitality Management, vol. 36 no. 2
Type: Research Article
ISSN: 0959-6119

Keywords

Article
Publication date: 13 March 2017

Jiraporn Pradabwong, Christos Braziotis, James D.T. Tannock and Kulwant S. Pawar

This study aims to examine the interrelationships among business process management (BPM), supply chain collaboration (SCC), collaborative advantage and organisational performance.

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Abstract

Purpose

This study aims to examine the interrelationships among business process management (BPM), supply chain collaboration (SCC), collaborative advantage and organisational performance.

Design/methodology/approach

Data were collected from 204 manufacturing firms in Thailand, and the interrelationships proposed in the framework were tested via structural equation modelling.

Findings

This study highlights the role of intra- and inter-organisational practices and clearly demonstrates the joint role and impact of BPM and SCC, respectively. The results provide empirical evidence that BPM improves both organisational performance and collaborative activities. Also, SCC and collaborative advantage can have indirect positive impacts on organisational performance.

Research limitations/implications

This work could be expanded by adopting a supplementary dyadic or extended supply chain (SC) approach and could also consider contextual factors, which were outside of the scope of this study.

Practical implications

The BPM approach has a positive impact on organisational performance, which is essential for collaborative activities between a firm and its SC partners. Further, effective BPM and SCC practices lead to enhanced performance and collaborative benefits. Practitioners should be better able to define and measure specific actions relating to their BPM and SCC practices.

Originality value

This paper stresses the need to consider the interrelationships between BPM, SCC, collaborative advantage and organisational performance for both direct and indirect effects. Rather than focusing only on improvement at individual firm level, SCC is vital to compete in the market. Improving the effectiveness of SC allows higher organisational performance levels than those that could be achieved in isolation.

Details

Supply Chain Management: An International Journal, vol. 22 no. 2
Type: Research Article
ISSN: 1359-8546

Keywords

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