Search results

1 – 10 of 563
Per page
102050
Citations:
Loading...
Access Restricted. View access options
Article
Publication date: 7 October 2020

Yizhi Shao, Oluwamayokun Bamidele Adetoro and Kai Cheng

This study aims to optimize the manufacturing process to improve the manufacturing quality, costs and delivering time with the help of multiscale multiphysics modelling and…

280

Abstract

Purpose

This study aims to optimize the manufacturing process to improve the manufacturing quality, costs and delivering time with the help of multiscale multiphysics modelling and simulation. Multiscale multiphysics-based modelling and simulations are receiving more and more interest by research community and the industry particularly in the context of increasing demands for manufacturing high precision complex products and understanding the intrinsic complexity in associated manufacturing processes.

Design/methodology/approach

In this paper, some modelling and analysis techniques using multiscale multiphysics modelling are presented and discussed.

Findings

Furthermore, the possibility of adopting the multiscale multiphysics modelling and simulation to develop the virtual machining system is evaluated, and further supported with an industrial case study on abrasive flow machining (AFM) of integrally bladed rotors using the techniques and system developed.

Originality/value

With the development of multiscale multiphysics-based modelling and simulation, it will enable effective and efficient optimisation of manufacturing processes and further improvement of manufacturing quality, costs, delivery time and the overall competitiveness.

Available. Content available
Article
Publication date: 10 June 2022

Kai Cheng

501

Abstract

Details

Aslib Journal of Information Management, vol. 74 no. 4
Type: Research Article
ISSN: 2050-3806

Access Restricted. View access options
Article
Publication date: 8 June 2022

Sheng-Wei Lin, Eugenia Y. Huang and Kai-Teng Cheng

This study employed the commitment–trust theory in social psychology and relationship marketing to explore female customers' perception of channel integration quality in…

1790

Abstract

Purpose

This study employed the commitment–trust theory in social psychology and relationship marketing to explore female customers' perception of channel integration quality in omnichannel retailing and its influence on their relationship commitment to and trust in the relationship with retailers, and thus on their stickiness. Channel integration quality consists of two dimensions: channel service configuration (channel choice breadth and channel service transparency) and integrated interactions (content consistency, process consistency and perceived fluency).

Design/methodology/approach

The study was carried out via a questionnaire survey, to which 868 valid responses were collected. The partial least squares technique was used to test the hypotheses.

Findings

Channel service transparency and perceived fluency influence relationship commitment; content consistency, process consistency and perceived fluency all have significant effects on trust. Interestingly, although less influential than integrated interactions, channel service configuration is the foundation of channel integration quality, testifying to its significant role.

Originality/value

This study provides strong evidence on how channel integration quality affects customer stickiness. Moreover, this study replicates the finding of significant relationships among relationship commitment, trust and stickiness in omnichannel retailing.

Details

Information Technology & People, vol. 36 no. 3
Type: Research Article
ISSN: 0959-3845

Keywords

Access Restricted. View access options
Article
Publication date: 8 October 2024

Calvin Ling, Cheng Kai Chew, Aizat Abas and Taufik Azahari

This paper aims to identify a suitable convolutional neural network (CNN) model to analyse where void(s) are formed in asymmetrical flip-chips with large amounts of the ball-grid…

24

Abstract

Purpose

This paper aims to identify a suitable convolutional neural network (CNN) model to analyse where void(s) are formed in asymmetrical flip-chips with large amounts of the ball-grid array (BGA) during underfilling.

Design/methodology/approach

A set of void(s)-filled through-scan acoustic microscope (TSAM) images of BGA underfill is collected, labelled and used to train two CNN models (You Look Only Once version 5 (YOLOv5) and Mask RCNN). Otsu's thresholding method is used to calculate the void percentage, and the model's performance in generating the results with its accuracy relative to real-scale images is evaluated.

Findings

All discoveries were authenticated concerning previous studies on CNN model development to encapsulate the shape of the void detected combined with calculating the percentage. The Mask RCNN is the most suitable model to perform the image segmentation analysis, and it closely matches the void presence in the TSAM image samples up to an accuracy of 94.25% of the entire void region. The model's overall accuracy of RCNN is 96.40%, and it can display the void percentage by 2.65 s on average, faster than the manual checking process by 96.50%.

Practical implications

The study enabled manufacturers to produce a feasible, automated means to improve their flip-chip underfilling production quality control. Leveraging an optimised CNN model enables an expedited manufacturing process that will reduce lead costs.

Originality/value

BGA void formation in a flip-chip underfilling process can be captured quantitatively with advanced image segmentation.

Details

Soldering & Surface Mount Technology, vol. 37 no. 1
Type: Research Article
ISSN: 0954-0911

Keywords

Access Restricted. View access options
Article
Publication date: 12 June 2017

Chen-Chien Hsu, Cheng-Kai Yang, Yi-Hsing Chien, Yin-Tien Wang, Wei-Yen Wang and Chiang-Heng Chien

FastSLAM is a popular method to solve the problem of simultaneous localization and mapping (SLAM). However, when the number of landmarks present in real environments increases…

264

Abstract

Purpose

FastSLAM is a popular method to solve the problem of simultaneous localization and mapping (SLAM). However, when the number of landmarks present in real environments increases, there are excessive comparisons of the measurement with all the existing landmarks in each particle. As a result, the execution speed will be too slow to achieve the objective of real-time navigation. Thus, this paper aims to improve the computational efficiency and estimation accuracy of conventional SLAM algorithms.

Design/methodology/approach

As an attempt to solve this problem, this paper presents a computationally efficient SLAM (CESLAM) algorithm, where odometer information is considered for updating the robot’s pose in particles. When a measurement has a maximum likelihood with the known landmark in the particle, the particle state is updated before updating the landmark estimates.

Findings

Simulation results show that the proposed CESLAM can overcome the problem of heavy computational burden while improving the accuracy of localization and mapping building. To practically evaluate the performance of the proposed method, a Pioneer 3-DX robot with a Kinect sensor is used to develop an RGB-D-based computationally efficient visual SLAM (CEVSLAM) based on Speeded-Up Robust Features (SURF). Experimental results confirm that the proposed CEVSLAM system is capable of successfully estimating the robot pose and building the map with satisfactory accuracy.

Originality/value

The proposed CESLAM algorithm overcomes the problem of the time-consuming process because of unnecessary comparisons in existing FastSLAM algorithms. Simulations show that accuracy of robot pose and landmark estimation is greatly improved by the CESLAM. Combining CESLAM and SURF, the authors establish a CEVSLAM to significantly improve the estimation accuracy and computational efficiency. Practical experiments by using a Kinect visual sensor show that the variance and average error by using the proposed CEVSLAM are smaller than those by using the other visual SLAM algorithms.

Details

Engineering Computations, vol. 34 no. 4
Type: Research Article
ISSN: 0264-4401

Keywords

Access Restricted. View access options
Book part
Publication date: 16 October 2020

Dina Clark, Teng-Shih Wang, Mike Shapeero, A. Blair Staley, Natalia Ermasova and Mark Usry

This chapter explores cultural factors that influence the propensity to blow-the-whistle in China, Taiwan, Russia, and the United States. This study found that culture and…

Abstract

This chapter explores cultural factors that influence the propensity to blow-the-whistle in China, Taiwan, Russia, and the United States. This study found that culture and traditions have strong impact on the propensity of whistleblowing. This research analyzed 1,541 working adults in China, Taiwan, Russia, and the United States. Statistical analysis of self-developed questionnaires reveal that: (a) Americans have a greater disposition to engage in whistleblowing than Chinese, Taiwanese, and Russian; (b) Americans have a smallest level of fear of retaliation to whistleblowers than Chinese, Taiwanese, and Russian; (c) the intention of Chinese, American, and Taiwanese to whistle-blow is influenced to a greater degree by position of wrongdoers than that of Russian; and (d) guanxi (personal relationships or networks) has a greater effect on the propensity to whistle-blow for Chinese and Taiwanese than for Americans and Russian. Auditors and managers need to be aware that employees in different cultures respond differently to factors that influence whistleblowing activities. The results of this study will help auditors and managers better assess risk and the effectiveness of internal controls and ethical standards.

Details

Research on Professional Responsibility and Ethics in Accounting
Type: Book
ISBN: 978-1-83867-669-8

Keywords

Access Restricted. View access options
Book part
Publication date: 9 August 2016

Orly Levy, Maury A. Peiperl and Karsten Jonsen

Cosmopolitanism represents a complex, multilevel, multilayer phenomenon manifested in a variety of social spheres, including moral, political, social, and cultural. Yet, despite…

Abstract

Cosmopolitanism represents a complex, multilevel, multilayer phenomenon manifested in a variety of social spheres, including moral, political, social, and cultural. Yet, despite its prominence in other disciplines, cosmopolitanism has received relatively scant attention in international management research. Furthermore, the understanding of cosmopolitanism as an ever-present social condition in which individuals are embedded lags significantly behind.

In this chapter, we develop a conceptual framework for cosmopolitanism as an individual-level phenomenon situated at the intersection of the moral, political, and sociocultural perspectives. The framework explicates the interrelations between macrolevel dynamics and individual experiences in a globalized world. We conceptualize cosmopolitanism as an individual disposition manifested and enacted through identities, attitudes, and practices. We also highlight the diversity of individuals who can be considered cosmopolitans, including those who may not possess the classic cosmopolitan CV. Finally, the chapter explores the implications of cosmopolitanism for global organizations and global leadership.

Details

Advances in Global Leadership
Type: Book
ISBN: 978-1-78635-138-8

Keywords

Access Restricted. View access options
Book part
Publication date: 1 January 2005

Kai-Ming Cheng

China is known for its culture of uniformity and conformity. Such a cultural tradition was reinforced in the socialist system that was established in 1949. This was significant in…

Abstract

China is known for its culture of uniformity and conformity. Such a cultural tradition was reinforced in the socialist system that was established in 1949. This was significant in education, which then became an important and instrumental part of the planned economy. During the high time of the planned economy, the entire nation was but one gigantic production unit under one central plan. People's lives are therefore also highly coordinated according to a general national plan. Products from all over the country were collected by the central government, and resources over the entire country were allocated by the central government. Therefore by design, there was not disparity, but then there was also no diversity.

Details

Higher Education in a Global Society: Achieving Diversity, Equity and Excellence
Type: Book
ISBN: 978-0-76231-182-8

Access Restricted. View access options
Book part
Publication date: 13 March 2012

Kai-ming Cheng

To me, diversity is a concept that evolves over time. I was born in Kunming, China. It was only when I started my doctoral study in London, I realized that diversity is so foreign…

Abstract

To me, diversity is a concept that evolves over time. I was born in Kunming, China. It was only when I started my doctoral study in London, I realized that diversity is so foreign to my culture. I left Kunming, which is in a province of the greatest ethnic diversity, when I was 1 year old and returned to Chinese societies where the Hans, the majority, shape the culture. When I was five, I moved from Shanghai to Hong Kong where I received my entire schooling.

Details

As the World Turns: Implications of Global Shifts in Higher Education for Theory, Research and Practice
Type: Book
ISBN: 978-1-78052-641-6

Access Restricted. View access options
Article
Publication date: 1 December 1996

Kai‐ming Cheng and Kam‐cheung Wong

Identifies several features in East Asian schools which coincide with commonly recognized characteristics of effective schools in the Western literature: community support…

3015

Abstract

Identifies several features in East Asian schools which coincide with commonly recognized characteristics of effective schools in the Western literature: community support, teacher professionalism, attention to quality and high expectations. Attributes this to the East Asian culture and discusses three major dimensions of the East Asian culture: the individual‐community dimension, the effort‐ability dichotomy and the holistic‐analytic tendency in analyses. Traces the origin of such cultural dimensions in the ancient literature and explores the implications of such cultural dimensions in school management. Briefly highlights two major challenges to the adoption of an effective schooling system in East Asia.

Details

Journal of Educational Administration, vol. 34 no. 5
Type: Research Article
ISSN: 0957-8234

Keywords

1 – 10 of 563
Per page
102050