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Article
Publication date: 16 October 2009

Pengcheng Yan, Dongqing Liu and Bo Zheng

The purpose of this paper is to forecast the reliable storage life of a certain kind of equipment under the normal stress level.

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182

Abstract

Purpose

The purpose of this paper is to forecast the reliable storage life of a certain kind of equipment under the normal stress level.

Design/methodology/approach

Through the stepping stress acceleration life test and the failure mechanism analysis, this paper aims to confirm the stress level for the stepping stress acceleration life test of a certain kind of equipment and establish the data processing mathematical model and storage life forecasting method.

Findings

The stress level for the stepping stress acceleration life test of a certain kind of equipment is confirmed and the data processing mathematical model and storage life forecasting method is established.

Research limitations/implications

Availability of data is the main limitation affecting which model will be applied.

Practical implications

Useful advice for products' storage life forecasting.

Originality/value

The paper presents a new approach to product storage life estimation.

Details

Kybernetes, vol. 38 no. 10
Type: Research Article
ISSN: 0368-492X

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Article
Publication date: 10 April 2009

Dongqing Liu, Bo Zheng and Pengcheng Yan

The purpose of this paper is to put forward a method which uses a computer to make a large number of simulated tests and determine the reference value of a system…

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151

Abstract

Purpose

The purpose of this paper is to put forward a method which uses a computer to make a large number of simulated tests and determine the reference value of a system reliability index according to a unit reliability index.

Design/methodology/approach

At the beginning of conducting an index demonstration and development on a new system, its unit reliability index can already reflect the unit reliability level accurately. Based on this characteristic, this index is used as the confidence lower limit of single side estimated in the unit reliability interval to find the failure distribution law of the unit. On this basis, a great number of simulated tests are made by a computer to calculate the unit failure number and reliability point estimated value every test.

Findings

The confidence lower limit of single side estimated in the system reliability interval is found by counting up the simulated test data of these units.

Research limitations/implications

Availability of data is the main limitation regarding which model will be applied.

Practical implications

A useful advice for system reliability analysis and calculation.

Originality/value

This paper presents a new approach of system reliability analysis.

Details

Kybernetes, vol. 38 no. 3/4
Type: Research Article
ISSN: 0368-492X

Keywords

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Article
Publication date: 26 July 2021

Pengcheng Li, Qikai Liu, Qikai Cheng and Wei Lu

This paper aims to identify data set entities in scientific literature. To address poor recognition caused by a lack of training corpora in existing studies, a distant…

Abstract

Purpose

This paper aims to identify data set entities in scientific literature. To address poor recognition caused by a lack of training corpora in existing studies, a distant supervised learning-based approach is proposed to identify data set entities automatically from large-scale scientific literature in an open domain.

Design/methodology/approach

Firstly, the authors use a dictionary combined with a bootstrapping strategy to create a labelled corpus to apply supervised learning. Secondly, a bidirectional encoder representation from transformers (BERT)-based neural model was applied to identify data set entities in the scientific literature automatically. Finally, two data augmentation techniques, entity replacement and entity masking, were introduced to enhance the model generalisability and improve the recognition of data set entities.

Findings

In the absence of training data, the proposed method can effectively identify data set entities in large-scale scientific papers. The BERT-based vectorised representation and data augmentation techniques enable significant improvements in the generality and robustness of named entity recognition models, especially in long-tailed data set entity recognition.

Originality/value

This paper provides a practical research method for automatically recognising data set entities in scientific literature. To the best of the authors’ knowledge, this is the first attempt to apply distant learning to the study of data set entity recognition. The authors introduce a robust vectorised representation and two data augmentation strategies (entity replacement and entity masking) to address the problem inherent in distant supervised learning methods, which the existing research has mostly ignored. The experimental results demonstrate that our approach effectively improves the recognition of data set entities, especially long-tailed data set entities.

Details

The Electronic Library , vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0264-0473

Keywords

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Article
Publication date: 27 November 2020

Chunjiao Jiang and Pengcheng Mao

The purpose of this paper is to examine how Si-shu, a traditional form of local, private education grounded in classical instruction, responded to the rapid modernization…

Abstract

Purpose:

The purpose of this paper is to examine how Si-shu, a traditional form of local, private education grounded in classical instruction, responded to the rapid modernization of education during the late Qing dynasty and early Republic of China and to explain why these schools, once extraordinarily adaptable, finally disappeared.

Design/methodology/approach:

The authors have examined both primary and secondary sources, including government reports, education yearbooks, professional annals, public archives, and published research to analyze the social, political and institutional changes that reshaped Si-shu in the context of China's late-19th- and early-20th-century educational modernization.

Findings:

Si-shu went through four stages of institutional change during the last century. First, they faced increased competition from new-style (westernized) schools during the late Qing dynasty. Second, they engaged in a process of intense self-reform, particularly after the Xinhai Revolution of 1911. Third, they were marginalized by the new educational systems of the Republic of China, especially the Renxu School System of 1922 and the Wuchen School System of 1928. Finally, after the foundation of the People's Republic of China in 1949, they were considered remnants of feudal culture and forcibly replaced by modern schools.

Originality/value:

This paper brings hitherto unexplored Chinese sources to an English-speaking audience in an effort to shed new light on the history of traditional Chinese education. The fate of Si-shu was part of the larger modernization of Chinese education – a development that had both advantages and disadvantages.

Details

History of Education Review, vol. 50 no. 1
Type: Research Article
ISSN: 0819-8691

Keywords

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Article
Publication date: 25 July 2013

Songbo Liu, Randall S. Schuler and Pengcheng Zhang

The purpose of this paper is to examine team external learning, particularly focusing on: how leader external learning behavior affects team external learning; how team…

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1190

Abstract

Purpose

The purpose of this paper is to examine team external learning, particularly focusing on: how leader external learning behavior affects team external learning; how team external learning influences employee creativity; and whether team internal learning is a moderator between the cross‐level relationship of external learning and employee creativity in Chinese R&D teams.

Design/methodology/approach

Survey questionnaire were administered to a sample of 80 R&D teams comprising 331 employees from three medium‐sized Chinese high‐tech companies. HLM was used to test cross‐level relationships.

Findings

The paper hypothesizes that: leader external learning positively influences team external learning; team external learning leads to employee creativity; and team internal learning moderates the relationship between team external learning and employee creativity. Results support hypotheses 2 and 3, but not hypothesis 1. In addition, leader external learning is found to positively influence employee creativity.

Practical implications

This study has implications for both team leaders and top management. Although the context of this study is in Chinese R&D teams, all those teams facing similar environment to R&D teams can also learn from this study. There are several interesting implications for scholars who are studying teams, creativity and innovation.

Originality/value

Combining fields of team learning, boundary spanning, creativity and leadership, the paper addresses the following four questions, and provides further insights to the area of team external learning: First, what is the cross level relationship between team external learning and employee creativity? Second, is internal learning a moderator on the relationship between team external learning and employee creativity in R&D project teams? Third, is leader external learning behavior one of antecedents of team external learning? Fourth, is there anything unique about team external learning in Chinese culture? The paper provides research evidence for each of these questions.

Details

Cross Cultural Management: An International Journal, vol. 20 no. 3
Type: Research Article
ISSN: 1352-7606

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Article
Publication date: 19 June 2017

Qi Wang, Pengcheng Zhang, Jianming Wang, Qingliang Chen, Zhijie Lian, Xiuyan Li, Yukuan Sun, Xiaojie Duan, Ziqiang Cui, Benyuan Sun and Huaxiang Wang

Electrical impedance tomography (EIT) is a technique for reconstructing the conductivity distribution by injecting currents at the boundary of a subject and measuring the…

Abstract

Purpose

Electrical impedance tomography (EIT) is a technique for reconstructing the conductivity distribution by injecting currents at the boundary of a subject and measuring the resulting changes in voltage. Image reconstruction for EIT is a nonlinear problem. A generalized inverse operator is usually ill-posed and ill-conditioned. Therefore, the solutions for EIT are not unique and highly sensitive to the measurement noise.

Design/methodology/approach

This paper develops a novel image reconstruction algorithm for EIT based on patch-based sparse representation. The sparsifying dictionary optimization and image reconstruction are performed alternately. Two patch-based sparsity, namely, square-patch sparsity and column-patch sparsity, are discussed and compared with the global sparsity.

Findings

Both simulation and experimental results indicate that the patch based sparsity method can improve the quality of image reconstruction and tolerate a relatively high level of noise in the measured voltages.

Originality/value

EIT image is reconstructed based on patch-based sparse representation. Square-patch sparsity and column-patch sparsity are proposed and compared. Sparse dictionary optimization and image reconstruction are performed alternately. The new method tolerates a relatively high level of noise in measured voltages.

Details

Sensor Review, vol. 37 no. 3
Type: Research Article
ISSN: 0260-2288

Keywords

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Article
Publication date: 16 November 2015

Li-zi Luo, Chao Mao, Li-yin Shen and Zheng-dao Li

An industrialized building system (IBS) is regarded as an effective residential building system that provides several benefits, including high quality, low cost, short…

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2461

Abstract

Purpose

An industrialized building system (IBS) is regarded as an effective residential building system that provides several benefits, including high quality, low cost, short time, good flexibility, reduced waste, and strong environmental performance. This system is considered to be valuable in promoting sustainable practices in China, where plans for urbanization have been established. However, the adoption of IBS in China is extremely limited. Potential risks exist and affect the attitudes of practitioners toward the use of this system. The purpose of this paper is to prioritize and analyze these risks and to develop corresponding strategies for mitigating these risks in China.

Design/methodology/approach

In total, 24 risks that inhibit the implementation of IBS in China are identified through literature review and examined through interviews for consistency. A questionnaire survey is conducted to quantify the significance of these risks. Cronbach’s coefficient α is employed to measure the internal consistency among the risk factors. The survey results are further analyzed using three case studies.

Findings

The top five risks identified are “poor cooperation between multi-interface,” “inappropriate design codes and standards for industrialized buildings,” “lack of management practices and experiences,” “enormous difficulty in achieving return on high initial investment,” and “lack of a quality monitoring mechanism for the production process.” The findings emphasize the government’s leading role in promoting the new building system in its introduction and enforcement of adequate policies and regulations. Practitioners are also instrumental in establishing proper understanding and knowledge of IBS and its application.

Originality/value

This study bridges the knowledge gaps on risk identification for implementing IBS in China. The findings provide practitioners and decision makers with valuable references for adopting adequate risk management methods and policies to promote IBS in China.

Details

Engineering, Construction and Architectural Management, vol. 22 no. 6
Type: Research Article
ISSN: 0969-9988

Keywords

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Article
Publication date: 26 July 2019

Dong-Young Kim

The purpose of this paper is to investigate whether supplier dependence is related to innovation in supplier firms. Drawing on resource dependence theory, the authors…

Abstract

Purpose

The purpose of this paper is to investigate whether supplier dependence is related to innovation in supplier firms. Drawing on resource dependence theory, the authors hypothesized that supplier dependence has both positive and negative relationships to the quantity and quality of innovation.

Design/methodology/approach

The study is based on data collected from US companies. Negative binomial regression analysis was used to test the proposed hypothesis.

Findings

The authors found that the quantity of innovation of a supplier firm initially decreased and then increased with the extent of the dependence upon major customers. This finding supports the idea that the benefits of supplier dependence mitigate the negative outcomes of dependence upon major customers.

Originality/value

This study extends the literature on supplier dependence by empirically examining the relationship between supplier dependence and the quantity and quality of innovation within the context of high-technology industries. The authors provide a holistic understanding of the value of the dependent relationship in boosting innovation in the context of supply chain management.

Details

Journal of Manufacturing Technology Management, vol. 31 no. 2
Type: Research Article
ISSN: 1741-038X

Keywords

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Article
Publication date: 14 October 2021

Dong-Young Kim and Bruce Fortado

The importance of supply chain network centrality has been widely recognized in the manufacturing literature. This study extends this literature by investigating the…

Abstract

Purpose

The importance of supply chain network centrality has been widely recognized in the manufacturing literature. This study extends this literature by investigating the relationship between network centrality and innovation value. “Innovation value” refers to an innovation's impact, quality and potential future contribution to technological development in a business community. This study also aims to examine whether the relationship between supplier centrality and innovation value is contingent upon supplier acquisition.

Design/methodology/approach

The study hypotheses are tested with archival data collected from US high-tech manufacturing industries over the 17-year period. Negative binomial regression analysis was used to test the hypotheses.

Findings

The authors found that supplier centrality has a significant positive relationship with innovation value. Moreover, an increase in supplier acquisition activities makes the relationship between supplier centrality and innovation value more positive.

Originality/value

This study contributes to the manufacturing and technology management research by exploring the impact of supplier centrality on innovation value. The results of this study shed light on the importance of a firm's central network position in enhancing the impact and quality of innovation. This study uncovers contingencies that help realize the potential benefits of holding a central network position.

Details

Journal of Manufacturing Technology Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1741-038X

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Article
Publication date: 18 May 2021

Basheer M. Al-Ghazali and Bilal Afsar

The effect of task conflict on innovative work behavior has yielded inconsistent results pointing to the need to examine the conditions under which task conflict is…

Abstract

Purpose

The effect of task conflict on innovative work behavior has yielded inconsistent results pointing to the need to examine the conditions under which task conflict is helpful for employees’ innovative work behavior. This study aims to develop a comprehensive model linking task conflict and innovative work behavior through constructive conflict, positive conflict value, cognitive flexibility and psychological safety.

Design/methodology/approach

Data were collected from 316 supervisor–subordinate dyads working in software development and high-technology companies located in Saudi Arabia. The research model was tested using partial least squares approach.

Findings

Results show that constructive conflict mediates the relationship between task conflict and innovative work behavior. Moreover, positive conflict value and cognitive flexibility mediate the effect of constructive conflict on innovative work behavior. Finally, psychological safety positively moderates the effect of positive conflict value and cognitive flexibility on innovative work behavior.

Originality/value

This study suggests that constructive conflict, cognitive flexibility, positive conflict value and psychological safety are important mechanisms that explain the link between task conflict and innovative work behavior.

Details

International Journal of Conflict Management, vol. 32 no. 4
Type: Research Article
ISSN: 1044-4068

Keywords

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