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Article
Publication date: 6 June 2022

Guoyang Wan, Fudong Li, Bingyou Liu, Shoujun Bai, Guofeng Wang and Kaisheng Xing

This paper aims to study six degrees-of-freedom (6DOF) pose measurement of reflective metal casts by machine vision, analyze the problems existing in the positioning of metal…

Abstract

Purpose

This paper aims to study six degrees-of-freedom (6DOF) pose measurement of reflective metal casts by machine vision, analyze the problems existing in the positioning of metal casts by stereo vision sensor in unstructured environment and put forward the visual positioning and grasping strategy that can be used in industrial robot cell.

Design/methodology/approach

A multikeypoints detection network Binocular Attention Hourglass Net is constructed, which can complete the two-dimensional positioning of the left and right cameras of the stereo vision system at the same time and provide reconstruction information for three-dimensional pose measurement. Generate adversarial networks is introduced to enhance the image of local feature area of object surface, and the three-dimensional pose measurement of object is completed by combining RANSAC ellipse fitting algorithm and triangulation method.

Findings

The proposed method realizes the high-precision 6DOF positioning and grasping of reflective metal casts by industrial robots; it has been applied in many fields and solves the problem of difficult visual measurement of reflective casts. The experimental results show that the system exhibits superior recognition performance, which meets the requirements of the grasping task.

Research limitations/implications

Because of the chosen research approach, the research results may lack generalizability. The proposed method is more suitable for objects with plane positioning features.

Originality/value

This paper realizes the 6DOF pose measurement of reflective casts by vision system, and solves the problem of positioning and grasping such objects by industrial robot.

Details

Assembly Automation, vol. 42 no. 4
Type: Research Article
ISSN: 0144-5154

Keywords

Article
Publication date: 30 January 2020

Guoyang Wan, Fudong Li, Wenjun Zhu and Guofeng Wang

The positioning and grasping of large-size objects have always had problems of low positioning accuracy, slow grasping speed and high application cost compared with ordinary small…

Abstract

Purpose

The positioning and grasping of large-size objects have always had problems of low positioning accuracy, slow grasping speed and high application cost compared with ordinary small parts tasks. This paper aims to propose and implement a binocular vision-guided grasping system for large-size object with industrial robot.

Design/methodology/approach

To guide the industrial robot to grasp the object with high position and pose accuracy, this study measures the pose of the object by extracting and reconstructing three non-collinear feature points on it. To improve the precision and the robustness of the pose measuring, a coarse-to-fine positioning strategy is proposed. First, a coarse but stable feature is chosen to locate the object in the image and provide initial regions for the fine features. Second, three circular holes are chosen to be the fine features whose centers are extracted with a robust ellipse fitting strategy and thus determine the precise pose and position of the object.

Findings

Experimental results show that the proposed system has achieved high robustness and high positioning accuracy of −1 mm and pose accuracy of −0.5 degree.

Originality/value

It is a high accuracy method that can be used for industrial robot vision-guided and grasp location.

Details

Sensor Review, vol. 40 no. 1
Type: Research Article
ISSN: 0260-2288

Keywords

Book part
Publication date: 2 February 2018

Ying Chen, Yun-Kyoung Kim, Zhiqiang Liu, Guofeng Wang and Guozhen Zhao

Guided by social exchange theory and signaling theory, this chapter investigates the relationship between individual perceptions of high-performance work systems (HPWS), union…

Abstract

Guided by social exchange theory and signaling theory, this chapter investigates the relationship between individual perceptions of high-performance work systems (HPWS), union instrumentality, and employees’ turnover intention. The results obtained from a multilevel and multisource sample of more than 1,300 employees in 37 multinational corporation based in China show that, in contrast to our hypothesis, union instrumentality is not directly related to turnover intention; rather, the results from the post hoc mediation analysis show that union instrumentality is indirectly and negatively related to turnover intention through affective organizational commitment. Consistent with our hypothesis, the results of our analysis show that union instrumentality serves as an important contingent factor in the relationship between HPWS and employee turnover intention. The relationship between HPWS and turnover intention becomes positive when employee union instrumentality is low.

Details

Advances in Industrial and Labor Relations, 2017: Shifts in Workplace Voice, Justice, Negotiation and Conflict Resolution in Contemporary Workplaces
Type: Book
ISBN: 978-1-78743-486-8

Keywords

Article
Publication date: 13 April 2010

Tianli Feng and Guofeng Wang

The purpose of this paper is to reveal how Chinese private entrepreneurs behaved in a transition economy with a weak institutional environment to obtain organizational legitimacy.

1703

Abstract

Purpose

The purpose of this paper is to reveal how Chinese private entrepreneurs behaved in a transition economy with a weak institutional environment to obtain organizational legitimacy.

Design/methodology/approach

Drawing on five consecutive nation‐wide surveys from 1997 to 2006 in China, the study provides empirical evidence and theoretical explanation on private entrepreneurs' behaviors in obtaining organizational legitimacy in China's transition economy.

Findings

The paper finds that the institutional environment in China's transition economy for private firms was weak. Specifically, weak property protection and Three Payouts showed a high risk of property confiscation for private firms; an under‐developed (discriminatory) financial system and a weak credit system had been big obstacles for the development of private firms, which resulted in debt chain among firms, a substitution for the weak financial system. Under such a hostile institutional environment where firms have been facing a high risk of organizational legitimacy, private entrepreneurs have great willingness to connect with government officers, participate in PC or CPPCC which are likely be politically connected, employ isomorphism in organizational structure, apply government‐oriented corporate social responsibility behaviors, on which they depend to obtain organizational legitimacy in transitional economy.

Originality/value

The paper exhibits the institutional environment in the past ten years in China's transition economy, and proposes the likely ways in which private entrepreneurs choose to establish legitimacy under a weak institutional environment.

Details

Journal of Management Development, vol. 29 no. 4
Type: Research Article
ISSN: 0262-1711

Keywords

Article
Publication date: 13 July 2007

Guofeng Wang, Runtian Jing and Andreas Klossek

The purpose of this study is to examine the relationship between demographic characteristics, job stress, and cognitive and affective conflict faced by Chinese top managers and…

3388

Abstract

Purpose

The purpose of this study is to examine the relationship between demographic characteristics, job stress, and cognitive and affective conflict faced by Chinese top managers and how this conflict is resolved over multiple rounds of conflict situations.

Design/methodology/approach

A questionnaire was designed and submitted to Chinese top managers of firms located in Sichuan Province, PRC. Besides Likert‐type questions concerning demographic characteristics, job stress, and both types of conflict, contextual anchorage method was used to let top managers rank the conflict resolution styles they would prefer for solving a given situation of conflict.

Findings

Data were submitted to hierarchical regression analysis. It was found that age is in negative relation with job stress and that the higher the education level of top managers, the more cognitive conflict they will experience. In turn, the more cognitive conflict, the more affective conflict will be experienced. In addition, it was found that job stress is in positive association with cognitive conflict. Finally and most importantly, the findings indicated that Chinese top managers are inclined to using integrating to handle conflict. This seems to be generally inconsistent with traditional Chinese culture.

Originality/value

The paper accounted for respective calls that proposed to focus on the antecedent conditions of cognitive and affective conflict. Therefore, a framework containing important antecedent factors of conflict was proposed. As a first attempt, it integrated the relationship between job stress and conflict. Most importantly, and also as a first attempt, however, this study sought to identify the conflict resolution styles Chinese top managers applied over multiple rounds of conflict situations, whereas findings additionally differentiate between affective and cognitive types of conflict.

Details

International Journal of Conflict Management, vol. 18 no. 1
Type: Research Article
ISSN: 1044-4068

Keywords

Article
Publication date: 29 July 2014

Jianfeng Jia, Guofeng Wang, Xi’nan Zhao and Xifeng Yu

The aim of this study is to explore the mediating role of executive competency in entrepreneurial-orientated corporations between entrepreneurial orientation and corporate…

1054

Abstract

Purpose

The aim of this study is to explore the mediating role of executive competency in entrepreneurial-orientated corporations between entrepreneurial orientation and corporate performance.

Design/methodology/approach

The authors conducted a survey of entrepreneurial-oriented enterprises mainly located in Beijing, Shanghai, Hangzhou, Shenyang, Dalian, Anshan, Chengdu, Guiyang, Wuhan, Taiyuan, Xi’an, Guangzhou, Shenzhen and so on, areas which cover North China, northeast of China, Yangtze River Delta and Pearl River Delta, and are largely representative of the population as a whole. A total of 300 questionnaires were issued with 276 returns, a response rate of 92 per cent; 248 of these were valid.

Findings

First, executive competency in entrepreneurial-oriented corporations has four dimensions. These are profession features, concept features, interpersonal features and individual internal drive features; 15 competency elements are included in the above dimensions. Second, entrepreneurial orientation does improve corporate performance, and the positive influence is mainly through two dimensions, which are innovation and antecedence. Third, executive competency has a positive influence on corporate performance, thus confirming the effectiveness of executive competency as a dependent variable. Finally, executive competency has a partial mediating influence on the relationship between entrepreneurial orientation and corporate performance, with a full mediating influence on innovation and corporate performance, and a partial mediating influence on antecedence and corporate performance.

Originality/value

The conclusions have important implications. Theoretically, the executive competency model, which fits entrepreneurial orientation, is constructed, and the relationship between entrepreneurial orientation and corporate performance is enriched and extended to include executive competency, which provides a theoretical foundation and empirical support for understanding and explaining entrepreneurial strategy in Chinese corporations. In terms of practical implications, this study helps entrepreneurial-orientated corporations to develop a proper human resources management system to recruit, evaluate, train and develop executives, resulting in continuous performance improvement.

Details

Nankai Business Review International, vol. 5 no. 3
Type: Research Article
ISSN: 2040-8749

Keywords

Content available
Book part
Publication date: 2 February 2018

Abstract

Details

Advances in Industrial and Labor Relations, 2017: Shifts in Workplace Voice, Justice, Negotiation and Conflict Resolution in Contemporary Workplaces
Type: Book
ISBN: 978-1-78743-486-8

Book part
Publication date: 2 February 2018

David Lewin and Paul J. Gollan

Abstract

Details

Advances in Industrial and Labor Relations, 2017: Shifts in Workplace Voice, Justice, Negotiation and Conflict Resolution in Contemporary Workplaces
Type: Book
ISBN: 978-1-78743-486-8

Article
Publication date: 14 November 2016

Yuye Wang, Guofeng Zhang and Xiaoguang Hu

Infrared simulation plays an important role in small and affordable unmanned aerial vehicles. Its key and main goal is to get the infrared image of a specific target. Infrared…

Abstract

Purpose

Infrared simulation plays an important role in small and affordable unmanned aerial vehicles. Its key and main goal is to get the infrared image of a specific target. Infrared physical model is established through a theoretical research, thus the temperature field is available. Then infrared image of a specific target can be simulated properly while taking atmosphere state and effect of infrared imaging system into account. For recent years, some research has been done in this field. Among them, the infrared simulation for large scale is still a key problem to be solved. In this passage, a method of classification based on texture blending is proposed and this method effectively solves the problem of classification of large number of images and increase the frame rate of large infrared scene rendering. The paper aims to discuss these issues.

Design/methodology/approach

Mosart Atmospheric Tool (MAT) is used first to calculate data of sun radiance, skyshine radiance, path radiance, temperatures of different material which is an offline process. Then, shader in OGRE does final calculation to get simulation result and keeps a high frame rate. Considering this, the authors convert data in MAT file into textures which can be easily handled by shader. In shader responding, radiance can be indexed by information of material, vertex normal, eye and sun. Adding the effect of infrared imaging system, the final radiance distribution is obtained. At last, the authors get infrared scene by converting radiance to grayscale.

Findings

In the fragment shader, fake infrared textures are used to look up temperature which can calculate radiance of itself and related radiance.

Research limitations/implications

The radiance is transferred into grayscale image while considering effect of infrared imaging system.

Originality/value

Simulation results show that a high frame rate can be reached while guaranteeing the fidelity.

Details

International Journal of Intelligent Computing and Cybernetics, vol. 9 no. 4
Type: Research Article
ISSN: 1756-378X

Keywords

Article
Publication date: 16 March 2021

Guofeng Ma, Shan Jiang and Ding Wang

Although social media has been increasingly applied and valued in the construction industry, there has been little evidence revealing the influence mechanism of social media use…

Abstract

Purpose

Although social media has been increasingly applied and valued in the construction industry, there has been little evidence revealing the influence mechanism of social media use in the construction context. In this way, this paper aims to explore how different purposes of social media use affect project performance from a project manager's perspective.

Design/methodology/approach

Drawing on the mechanism–outcome–performance framework, this paper developed a research model to figure out the mechanism through which work-oriented and socialization-oriented social media use influences construction project performance. The empirical data were collected from a survey of 249 construction project managers, and the structural equation modeling technique was applied to test the proposed model.

Findings

Results indicate that both work-oriented and socialization-oriented social media use promote knowledge acquisition and project social capital, which both further positively impact the project performance. Additionally, the negative moderating role of information overload is identified on the relationship between social media use and knowledge acquisition.

Originality/value

This study fulfills the need for an in-depth investigation of social media use on construction project performance, contributing to the project management and social media literature. Furthermore, this study provides recommendations for project managers to advance social media applications in the construction domain.

Details

Engineering, Construction and Architectural Management, vol. 29 no. 1
Type: Research Article
ISSN: 0969-9988

Keywords

1 – 10 of 38