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Article
Publication date: 11 June 2024

Delin Chen, Yan Chen and Jinxin Chen

This paper aims to analyze the characteristics of friction vibration signals and identify the vibration excitation source at the start and stop stage of microtextured end face of…

44

Abstract

Purpose

This paper aims to analyze the characteristics of friction vibration signals and identify the vibration excitation source at the start and stop stage of microtextured end face of dry gas seals.

Design/methodology/approach

The friction pair consists of a diamond-like carbon (DLC) film microtextured seal ring and a spiral groove seal ring. Friction vibration signal feature extraction method based on harmonic wavelet packet and spectrum analysis was proposed. Signals were collected using acceleration sensor, acquisition card and LabVIEW software. Vibration acceleration signal was decomposed into 32 frequency bands using MATLAB wavelet packet transformation. The 32nd band coefficient was extracted for reconstruction, time-domain and spectral waveforms were obtained and spectra before/after denoising were compared.

Findings

The end face of the DLC film microtextured seal ring generates a good dynamic pressure effect, and the friction and vibration reduction effects are obvious. The harmonic wavelet packet can decompose the vibration signal conveniently and precisely. In the case of this experiment, the frequency of vibration of the seal ring is 7500 HZ.

Originality/value

The results show that the method is effective for the processing of friction vibration signal and the identification of vibration excitation source. The findings will provide ideas for the frictional vibration signal processing and basis for further research in the field of tribology of dry gas seal ring.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2024-0084/

Details

Industrial Lubrication and Tribology, vol. 76 no. 5
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 3 October 2023

Mengge Li and Jinxin Yang

By integrating perspectives from the resource-based view, attention-based view, upper echelon theory and competitive dynamics (CD), the authors seek to understand how chief…

641

Abstract

Purpose

By integrating perspectives from the resource-based view, attention-based view, upper echelon theory and competitive dynamics (CD), the authors seek to understand how chief executive officer (CEO) vigilance influences the way resources are utilized in relation to competitive behavior.

Design/methodology/approach

This study's empirical analysis is conducted using a longitudinal design in the US software and IT services industry with a final sample consisting of 44 publicly traded firms and 471 firm-year observations from 1995 to 2009. The authors respectively use the fixed-effects negative binomial model and generalized estimating equation (GEE) model to test the effects of technology resource breadth on competitive intensity and competitive deviance and the interacting effects with CEO attention broadness and uniqueness.

Findings

This study's results show that CEO vigilance (attention broadness and uniqueness) interacts with technology resource breadth to jointly influence competitive intensity and deviance. Firms with vigilant CEOs utilize firm resources to compete less intensively but in an unconventional way.

Practical implications

This study reveals that when CEOs have a broader focus and attend to a wide range of information, their ability to quickly utilize firm resources for formulating competitive actions decreases. Consequently, it is crucial for CEOs to acknowledge the limitations of their attentional capacity. They need to understand that the allocation of their attention and information processing capacity has significant implications for the speed and quality of their decision-making processes.

Originality/value

The authors conceptualize and operationalize CEO vigilance, which is a novel construct that has not been studied. The authors show that CEO vigilance plays critical roles in utilizing resources to compete. This study offers significant research implications for attention-based view, upper-echelons theory, CD perspective and resource-based view.

Details

Management Decision, vol. 61 no. 11
Type: Research Article
ISSN: 0025-1747

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Article
Publication date: 16 August 2019

Qiong Yao, Jinxin Liu, Shibin Sheng and Heng Fang

Drawing on the literature of eco-innovation and institutional theory, this research aims to answer two fundamental questions: Does eco-innovation improve or harm firm value in…

1945

Abstract

Purpose

Drawing on the literature of eco-innovation and institutional theory, this research aims to answer two fundamental questions: Does eco-innovation improve or harm firm value in emerging markets? and How institutional environments moderate the relationship between eco-innovation and firm value? We explicate the regulatory, normative and cognitive pillars of institutions, manifested as regulation intensity, environmental agency pressure and public pressure, respectively.

Design/methodology/approach

For this study, a cross-sectional panel data set was assembled from multiple archival sources, including data coded from the corporate annual reports and social responsibility reports, statistical yearbooks, China Stock Market Financial Database (CSMAR) and other secondary sources. A hierarchical regression method was used to test the hypotheses. The data comprised 88 firms sampled over four years. The model using feasible generalized least squares (FGLSs) to control heteroscedasticity in errors due to unobserved heterogeneity was estimated.

Findings

Empirical findings from a data set compiled from multiple archival sources reveal that both eco-product and eco-process innovation negatively relate to firm value. The interactions between eco-innovation and regulation intensity, environmental agency pressure and public pressure are positively related to firm value.

Originality/value

First, this study extends the literature of eco-innovation by investigating the impact of eco-innovation on firm value. Contrary to the conventional anecdotal evidence of the beneficial effect of eco-innovation, it was found that eco-innovation relates negatively to firm value. Second, this study develops and tests an institutional contingent view of eco-innovation by accounting for the moderating role of regulatory, normative and cognitive pressures.

Details

Journal of Business & Industrial Marketing, vol. 34 no. 8
Type: Research Article
ISSN: 0885-8624

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Article
Publication date: 5 April 2024

Heping Liu, Jinxin Lu, Fusheng Zhu and Ani Luo

This study proposes a tensegrity-based traction structure with D-bar dual cable units. It is used to connect the airship and the ground to stabilize the airship.

48

Abstract

Purpose

This study proposes a tensegrity-based traction structure with D-bar dual cable units. It is used to connect the airship and the ground to stabilize the airship.

Design/methodology/approach

The mathematical models and dynamic models of the D-bar dual cable (hereafter referred to as DD cable) unit of the tensegrity-based traction structure are established. Based on the minimum mass method, the mass of the DD cable unit in the critical state (cable member is yielding, or bar member is buckling or yielding) is analyzed. Then, the tensile strength of the DD cable unit and single cable unit under the same condition is compared using the control variate method. Finally, based on ANSYS dynamic simulation, the stability of the two structures under the same external force disturbance was tested.

Findings

Expressions for the minimum mass of the DD cable unit under different failure conditions are solved. Dynamic simulation results show that the capacity of resisting disturbance of the DD cable unit is much better than that of the single cable unit under the same wind speed. So, we find a structure more suitable for the fixed connection of an airship.

Originality/value

This study helps to provide theoretical reference and thinking for the practical application of the traction structure with a D-bar dual cable unit.

Details

Engineering Computations, vol. 41 no. 2
Type: Research Article
ISSN: 0264-4401

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Article
Publication date: 8 December 2017

Ying Guo, Qinghe Han, Jinxin Wang and Xu Yu

Localization is one of the critical issues in Ocean Internet of Things (OITs). The existing research results of localization in OITs are very limited. It poses many challenges due…

214

Abstract

Purpose

Localization is one of the critical issues in Ocean Internet of Things (OITs). The existing research results of localization in OITs are very limited. It poses many challenges due to the difficulty of deploy beacon accurately, the difficulty of transmission distance estimation in harsh ocean environment and the underwater node mobility. This paper aims to provide a novel localization algorithm to solve these problems.

Design/methodology/approach

This paper takes the ship with accurate position as a beacon, analyzes the relationship between underwater energy attenuation and node distance and takes them into OITs localization algorithm design. Then, it studies the movement regulation of underwater nodes in the action of ocean current, and designs an Energy-aware Localization Algorithm (ELA) for OITs.

Findings

Proposing an ELA. ELA takes the ship with accurate position information as a beacon to solve the problem of beacon deployment. ELA does not need to calculate the information transmission distance which solves the problem of distance estimation. It takes underwater node movement regulation into computation to solve the problem of node mobility.

Originality value

This paper provides an ELA based on the relationship between propagation energy attenuation and node distance for OITs. It solves the problem of localization in dynamic underwater networks.

Details

Sensor Review, vol. 38 no. 2
Type: Research Article
ISSN: 0260-2288

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Article
Publication date: 18 October 2019

Mengge Li and Jinxin Yang

As the primary decision makers, chief executive officers (CEOs) play pivotal roles in firm innovation. However, little is known regarding how CEOs influence the exploitation and…

1688

Abstract

Purpose

As the primary decision makers, chief executive officers (CEOs) play pivotal roles in firm innovation. However, little is known regarding how CEOs influence the exploitation and exploration paradox. To advance theory and research, the purpose of this paper is to investigate the joint effects of CEO tenure and CEO–chair duality on a firm’s shifting emphasis between exploitative and exploratory innovation.

Design/methodology/approach

This paper takes the approach of a longitudinal sample of 81 US pharmaceutical firms.

Findings

As CEOs’ tenure advance, their firms’ percentage of exploitative innovation increases. Furthermore, non-duality (separation of board chair and CEO) further strengthens the positive relationship between CEO tenure and the percentage of exploitative innovation.

Research limitations/implications

This study integrates upper echelons theory and behavioral agency theory to juxtapose the effects of CEOs on technological innovation. This study extends knowledge of strategic leadership and innovation by showing that CEOs influence the balance between exploitative and exploratory innovation. Furthermore, this study also contributes to the corporate governance literature by demonstrating that monitoring vigilance could inhibit capable CEOs from pursuing more exploratory innovation.

Practical implications

Boards of directors should allow CEOs to have greater discretion over innovation, and vigilant monitoring and control may force CEOs to focus less on exploration.

Originality/value

This is one of the few studies that explicitly investigate how CEO influences a firm’s emphasis on exploitative innovation and exploratory innovation.

Details

Journal of Strategy and Management, vol. 12 no. 4
Type: Research Article
ISSN: 1755-425X

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Article
Publication date: 23 January 2007

Jian Kang, Charles Y.J. Cheah, David A.S. Chew and Guozhi Liu

The purpose of this paper is to examine a series of environmental factors and industrial conditions governing the construction industry in China. The outcome of this part of the…

1812

Abstract

Purpose

The purpose of this paper is to examine a series of environmental factors and industrial conditions governing the construction industry in China. The outcome of this part of the analysis sheds light on the development of appropriate competitive strategies and important resources and competencies (IRCs) to establish long‐term competitive advantages.

Design/methodology/approach

The overarching conceptual framework consists of both external and internal analyses. Since, the scope of work is very broad, the materials presented in this paper is limited to external analysis of environmental factors. The study is primarily derived from a literature review and synthesis of data gathered from various public sources. Certain parts of the analysis utilize frameworks developed by other researchers and selective statistical methods.

Findings

Some environmental factors, such as government intervention and legal and regulatory systems require the development of Guanxi (relationships) to cope with. Other factors including market structure, project procurement systems, horizontal market segments related to construction, regional characteristics and upstream and downstream functions within the construction value chain are suggestive of five potential types of competitive strategies: cost leadership, differentiation, market/product diversification, geographical diversification, and vertical/functional integration.

Research limitations/implications

The research study as a whole is targeted at large construction firms in China that belong to the First class qualification category. Therefore, the proposed competitive strategies and IRCs may not be applicable to small and medium construction enterprises.

Originality/value

Application of strategic management theories and empirical findings related to the Chinese construction industry is lacking. This research fills this gap and builds a foundation for future studies related to this industry.

Details

Chinese Management Studies, vol. 1 no. 1
Type: Research Article
ISSN: 1750-614X

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Article
Publication date: 24 September 2024

Jinxin Liu, Huanqin Wang, Qiang Sun, Chufan Jiang, Jitong Zhou, Gehang Huang, Fajun Yu and Baolin Feng

This study aims to establish a multi-physics-coupled model for an electrostatic particulate matter (PM) sensor. The focus lies on investigating the deposition patterns of…

10

Abstract

Purpose

This study aims to establish a multi-physics-coupled model for an electrostatic particulate matter (PM) sensor. The focus lies on investigating the deposition patterns of particles within the sensor and the variation in the regeneration temperature field.

Design/methodology/approach

Computational simulations were initially conducted to analyse the distribution of particles under different temperature and airflow conditions. The study investigates how particles deposit within the sensor and explores methods to expedite the combustion of deposited particles for subsequent measurements.

Findings

The results indicate that a significant portion of the particles, approximately 61.8% of the total deposited particles, accumulates on the inside of the protective cover. To facilitate rapid combustion of these deposited particles, a ceramic heater was embedded within the metal shielding layer and tightly integrated with the high-voltage electrode. Silicon nitride ceramic, selected for its high strength, elevated temperature stability and excellent thermal conductivity, enables a relatively fast heating rate, ensuring a uniform temperature field distribution. Applying 27 W power to the silicon nitride heater rapidly raises the gas flow region's temperature within the sensor head to achieve a high-temperature regeneration state. Computational results demonstrate that within 200 s of heater operation, the sensor's internal temperature can exceed 600 °C, effectively ensuring thorough combustion of the deposited particles.

Originality/value

This study presents a novel approach to address the challenges associated with particle deposition in electrostatic PM sensors. By integrating a ceramic heater with specific material properties, the study proposes an effective method to expedite particle combustion for enhanced sensor performance.

Details

Sensor Review, vol. 44 no. 6
Type: Research Article
ISSN: 0260-2288

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Article
Publication date: 2 May 2017

Wing-hin Kam

This paper aims to analyse how both Lin’s birthplace identity and his Christian identity contributed to his fruitful public career and to ascertain which identity became the most…

101

Abstract

Purpose

This paper aims to analyse how both Lin’s birthplace identity and his Christian identity contributed to his fruitful public career and to ascertain which identity became the most significant.

Design/methodology/approach

Archival research is the main method used in this paper. The most important archives drawn from are the Daniel Tse Collection in the Special Collection and Archives of the Hong Kong Baptist University Library. Oral history has also been used in this paper to uncover more material that has not yet been discussed in existing scholarly works.

Findings

This paper argues that although Lin’s birthplace identity and social networks helped him to start his business career in Nam Pak Hong and develop into a leader in the local Chaozhou communities, these factors were insufficient to his becoming a respectable member of the Chinese elite in post-war Hong Kong. He became well known not because of his leading position in local Chaozhou communities or any great achievement he had obtained in business but because of his contribution to the development of Christian education. These achievements earned him a reputation as a “Christian educator”. Thus Lin’s Christian identity became more important than his birthplace identity in contributing to his successful public career.

Originality/value

This paper has value in showing how Christian influences interacted with various cultural factors in early Hong Kong. It also offers insights into Lin’s life and motivations as well as the history of the institutions he contributed to/founded. It not only furthers our understanding of the Chinese Christian business elite in early Hong Kong but also provides us with insights when further studying this group of people in other British colonies in Asia.

Details

Social Transformations in Chinese Societies, vol. 13 no. 1
Type: Research Article
ISSN: 1871-2673

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Article
Publication date: 14 February 2024

Qian Zhou, Shuxiang Wang, Xiaohong Ma and Wei Xu

Driven by the dual-carbon target and the widespread digital transformation, leveraging digital technology (DT) to facilitate sustainable, green and high-quality development in…

978

Abstract

Purpose

Driven by the dual-carbon target and the widespread digital transformation, leveraging digital technology (DT) to facilitate sustainable, green and high-quality development in heavy-polluting industries has emerged as a pivotal and timely research focus. However, existing studies diverge in their perspectives on whether DT’s impact on green innovation is synergistic or leads to a crowding-out effect. In pursuit of optimizing the synergy between DT and green innovation, this paper aims to investigate the mechanisms that can be harnessed to render DT a more constructive force in advancing green innovation.

Design/methodology/approach

Drawing from the theoretical framework of resource orchestration, the authors offer a comprehensive elucidation of how DT intricately influences the green innovation efficiency of enterprises. Given the intricate interplay within the synergistic relationship between DT and green innovation, the authors use the fuzzy-set qualitative comparative analysis method to explore diverse configurations of antecedent conditions leading to optimal solutions. This approach transcends conventional linear thinking to provide a more nuanced understanding of the complex dynamics involved.

Findings

The findings reveal that antecedent configurations fostering high green innovation efficiency actually differ across various stages. First, there are three distinct configuration patterns that can enhance the green technology research and development (R&D) efficiency of enterprises, namely, digitally driven resource integration (RI), digitally driven resource synergy (RSy) and high resource orchestration capability. Then, the authors also identify three configuration patterns that can bolster the high green achievement transfer efficiency of enterprises, including a digitally optimized resource portfolio, digitally driven RSy and efficient RI. The findings not only contribute to advancing the resource orchestration theory in the digital ecosystem but also provide empirical evidence and practical insights to support the sustainable development of green innovation.

Practical implications

The findings can offer valuable insights for enterprise managers, providing decision-making guidance on effectively harnessing the innovation-driven value of internal and external resources through resource restructuring, bundling and leveraging, whether with or without the support of DT.

Social implications

The research findings contribute to heavy-polluting enterprises addressing the paradoxical tensions between digital transformation and resource constraints under environmental regulatory pressures. It aims to facilitate the simultaneous achievement of environmental and commercial success by enhancing their green innovation capabilities, ultimately leading to sustainability across profit and the environment.

Originality/value

Compared with previous literature, this research introduces a distinctive theoretical perspective, the resource orchestration view, to shed light on the paradoxical relationship on resource-occupancy between DT application and green innovation. It unveils the “black box” of how digitalization impacts green innovation efficiency from a more dynamic resource-based perspective. While most studies regard green innovation activities as a whole, this study delves into the impact of digitalization on green innovation within the distinct realms of green technology R&D and green achievement transfer, taking into account a two-stage value chain perspective. Finally, in contrast to previous literature that predominantly analyzes influence mechanisms through linear impact, the authors use configuration analysis to intricately unravel the complex influences arising from various combinatorial relationships of digitalization and resource orchestration behaviors on green innovation efficiency.

Details

Sustainability Accounting, Management and Policy Journal, vol. 15 no. 4
Type: Research Article
ISSN: 2040-8021

Keywords

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