Xiangyu Wang, Pei He, Qinglong Zhou, Qingyuan Zhou, Manlang Cheng, Yangting Sun, Yiming Jiang, Laizhu Jiang and Jin Li
The purpose of this study is to investigate the intergranular corrosion (IGC) susceptibility of a nitrogen-containing austenitic stainless steel QN2109. The intergranular…
Abstract
Purpose
The purpose of this study is to investigate the intergranular corrosion (IGC) susceptibility of a nitrogen-containing austenitic stainless steel QN2109. The intergranular corrosion (IGC) susceptibility of a nitrogen-containing austenitic stainless steel QN2109 was investigated.
Design/methodology/approach
The double-loop electrochemical potentiodynamic reactivation (DL-EPR) tests were carried out. Scanning electron microscopy and atomic force microscopy were used to characterize the microstructure.
Findings
The optimized test condition for QN2109 was 1 M H2SO4 + 0.01 M NH4SCN at 40°C. The nose temperature of the temperature–time–sensitization (TTS) curve of QN2109 plot was approximately 750°C. Moreover, the IGC susceptibility started to appear at approximately 120 min. The Cr-depletion zone of QN2109 was generated by the formation of M23C6 rather than by the addition of nitrogen. The depth–width ratio of the grain boundaries after the DL-EPR tests decreased as the aging temperature increased. The degree of Cr depletion and size of the Cr-depletion zone at the grain boundary were reflected by the degree of sensitization and depth–width ratio, respectively.
Originality/value
The optimized test condition for DL-EPR tests of a nitrogen-containing austenitic stainless steel QN2109 was investigated. The TTS curve of QN2109 was first plotted to avoid IGC failure. The morphology of the Cr-depletion zone was reflected by the depth–width ratio.
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Jun-Shan Li, Pei-Pei He and Rui-Bo He
The purpose of this paper is to provide theoretical model about supplier-induced demand (SID) in health care market in China. Then, an empirical analysis will also be carried out…
Abstract
Purpose
The purpose of this paper is to provide theoretical model about supplier-induced demand (SID) in health care market in China. Then, an empirical analysis will also be carried out according to the theoretical model above. At last, some advices will be provided in order to control or eliminate the SID in Chinese health care market.
Design/methodology/approach
SID has in fact been one of the most contentious topics in the economics of health care. According to the SID theory in health economics, the theoretical model about SID in China has been provided, then, based on the co-integration theory, the empirical analysis has been brought out.
Findings
The study tells that it is the reduction of government finance to hospital, not the increase of supply that is the long-term steady determinants of growth of health care expenditure and that the difference of marginal return to hospital among all kinds of services and medicines is the external factor.
Originality/value
To provide theoretical model about SID in health care market in China is the main originality value.
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Guohua He, Pei Liu, Xinnian Zheng, Lixun Zheng, Patricia Faison Hewlin and Li Yuan
This study aims to explore whether, how and when leaders' artificial intelligence (AI) symbolization (i.e. the demonstration of leaders' acceptance of and support for AI by…
Abstract
Purpose
This study aims to explore whether, how and when leaders' artificial intelligence (AI) symbolization (i.e. the demonstration of leaders' acceptance of and support for AI by engaging in AI-related behaviors and/or displaying objects that reflect their affinity for AI) affects employee job crafting behaviors.
Design/methodology/approach
The authors conducted two studies (i.e. an experiment and a multi-wave field survey) with samples from different contexts (i.e. United States and China) to test our theoretical model. The authors used ordinary least squares (OLS) and hierarchical linear modeling (HLM) to test the hypotheses.
Findings
Leaders' AI symbolization is positively related to employee change readiness and, in turn, promotes employee job crafting. Moreover, employee-attributed impression management motives moderate the positive indirect effect of leaders' AI symbolization on employee job crafting via change readiness, such that this indirect effect is stronger when employee-attributed impression management motives are low (vs high).
Practical implications
Leaders should engage in AI symbolization to promote employee job crafting and avoid behaviors that may lead employees to attribute their AI symbolization to impression management.
Originality/value
By introducing the concept of leaders' AI symbolization, this study breaks new ground by illustrating how leaders' AI symbolization positively influences employees' change readiness, as well as job crafting in the workplace. Further, integrating AI as a novel and timely context for evaluating job crafting contributes to the literature where empirical research is relatively scant, particularly regarding the factors that prompt employees to engage in job crafting.
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Yaoqi Li, Jinghua Tu, Mang He and Pei Liu
This study aims to examine the effect of regional discrimination on tourists’ unethical behavior intention and the mediating role of tourist anger. Furthermore, the study examines…
Abstract
Purpose
This study aims to examine the effect of regional discrimination on tourists’ unethical behavior intention and the mediating role of tourist anger. Furthermore, the study examines whether the impact of regional discrimination on tourist anger is moderated by tourist self-efficacy.
Design/methodology/approach
Three scenario experiments were conducted to test the research hypotheses.
Findings
The results indicated an indirect effect of regional discrimination on tourists’ unethical behavior intention via tourist anger. In addition, the findings showed that tourist self-efficacy would weaken the relationship between regional discrimination and tourist anger.
Research limitations/implications
This study reveals tourists’ emotional and behavioral reactions to regional discrimination. Further research can examine the influence of regional discrimination from other theoretical lens and field experiments are encouraged.
Originality/value
This study enriches current knowledge on regional discrimination by developing an integral framework to explore tourists’ reactions toward regional discrimination.
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Xinde Li, Pei Li, Mohammad Omar Khyam, Xiangheng He and Shuzhi Sam Ge
As an automatic welding process may experience some disturbances caused by, for example, splashes and/or welding fumes, misalignments/poor positioning, thermally induced…
Abstract
Purpose
As an automatic welding process may experience some disturbances caused by, for example, splashes and/or welding fumes, misalignments/poor positioning, thermally induced deformations, strong arc lights and diversified welding joints/grooves, precisely identifying the welding seam has a great influence on the welding quality. This paper aims to propose a robust method for identifying this seam based on cross-modal perception.
Design/methodology/approach
First, after a welding image obtained from a structured-light vision sensor (here laser and vision are integrated into a cross-modal perception sensor) is filtered, in a sufficiently small area, the extended Kalman filter is used to prevent possible disturbances to search for its laser stripe. Second, to realize the extraction of the profile of welding seam, the least square method is used to fit a sequence of centroids determined by the scanning result of columns displayed on the tracking window. Third, this profile is then qualitatively described and matched using a proposed character string method.
Findings
It is demonstrated that it maintains real time and is clearly superior in terms of accuracy and robustness, though its real-time performance is not the best.
Originality/value
This paper proposes a robust method for automatically identifying and tracking a welding seam.
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Lei Wei, Pan Xie, Jing Guang Hu, Zhen Hao Zeng, Pei Yang, Feihui Yang, Jia Jun He and Song Chen
The purpose of this paper is to study the relationship between high temperature oxidation and temperature rise rate of engine oil attempted to explore a new indicator to evaluate…
Abstract
Purpose
The purpose of this paper is to study the relationship between high temperature oxidation and temperature rise rate of engine oil attempted to explore a new indicator to evaluate oil degradation.
Design/methodology/approach
Accelerated oxidation test combined with molecular simulation and road test is carried out in this paper. The temperature rise characteristics of mineral oil and synthetic oil under different oxidation temperatures (140°C, 155°C and 170°C) and time (50 h, 100 h, 150 h and 200 h) were determined by accelerated oxidation. The mechanism of temperature change characteristics of used oils was analyzed with molecular simulation. Two experimental vehicles carried six road tests with synthetic and mineral oil.
Findings
The results of this study show that the temperature rise rate of oxidized mineral and synthetic oil is higher than the new oil. The temperature rise rate is proportional to the oxidation time and oxidation temperature. The synthetic engine oil temperature rise rate is lower than that of the mineral engine oil. The same result was obtained in road tests. Molecular simulation verifies that small molecules were generated after oil oxidation which results in intermolecular friction and increased heat generation.
Originality/value
This paper indicates that temperature rise rate has potential to be taken as an indicator to evaluate oil oxidation which provides a new way for engine oil analysis.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-05-2024-0177/
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Pei Wei, Zhengying Wei, Zhne Chen, Jun Du, Yuyang He and Junfeng Li
This paper aims to study numerically the influence of the applied laser energy density and the porosity of the powder bed on the thermal behavior of the melt and the resultant…
Abstract
Purpose
This paper aims to study numerically the influence of the applied laser energy density and the porosity of the powder bed on the thermal behavior of the melt and the resultant instability of the liquid track.
Design/methodology/approach
A three-dimensional model was proposed to predict local powder melting process. The model accounts for heat transfer, melting, solidification and evaporation in granular system at particle scale. The proposed model has been proved to be a good approach for the simulation of the laser melting process.
Findings
The results shows that the applied laser energy density has a significantly influence on the shape of the molten pool and the local thermal properties. The relative low or high input laser energy density has the main negative impact on the stability of the scan track. Decreasing the porosity of the powder bed lowers the heat dissipation in the downward direction, resulting in a shallower melt pool, whereas pushing results in improvement in liquid track quality.
Originality/value
The randomly packed powder bed is calculated using discrete element method. The powder particle information including particle size distribution and packing density is taken into account in placement of individual particles. The effect of volumetric shrinkage and evaporation is considered in numerical model.
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Pei Wu, Yongguang Zou, Dan Jin, Yuan Li and Jianming Zhang
A daily vlog is a new type of film tourism that has been underexplored in the literature. This study aims to explore the key elements of daily vlogs that trigger a followers’…
Abstract
Purpose
A daily vlog is a new type of film tourism that has been underexplored in the literature. This study aims to explore the key elements of daily vlogs that trigger a followers’ travel intention within the framework of enduring involvement. The study will highlight the affect-inspiring role of para-social relationships (PSR), extending the scope of film tourism research.
Design/methodology/approach
In Study 1, the objective was to investigate the essential components of enduring involvement in destination-life scenarios. This was accomplished through the analysis of qualitative data, including interview data collected from 15 participants and more than 20,000 words extracted from online blogs, barrages and comments. Additionally, Study 2 used 376 questionnaires to test the proposed structural model.
Findings
Within daily vlog-induced tourism, PSR assumes a pivotal role as a catalyst for evoking emotions. This phenomenon is interwoven with enduring involvement and has a direct impact on the determination of travel intention. Within the contextual framework of enduring involvement, constituents such as destination-life self-disclosure, situational resonance and affective belonging converge synergistically. These elements collectively underpin the process through which followers harness PSR as a driving force for nurturing travel intentions within the realm of daily vlog-induced tourism.
Originality/value
This study proposes the concept of daily vlog-induced tourism and emphasizes the emotion-inspiring role of PSR, to extend film tourism research to include daily vlogs. The study then explores the influencing factors of daily vlog-induced tourism under the framework of enduring involvement, providing a new understanding of enduring involvement in daily vlog-induced tourism.
研究目的
日常视频博客是一种新型的电影旅游, 但文献中对它的研究还不够。本研究旨在持久卷入的框架内探讨日常视频博客触发追随者旅游意向的关键因素。本研究将强调辅助准社会关系的情感激励作用, 从而扩展电影旅游研究的范围。
设计/方法/途径
研究1的目的是调查目的地生活场景中持久参与的基本要素。为此, 研究人员分析了定性数据, 包括从15名参与者那里收集的访谈数据, 以及从在线博客、弹幕(即时更新的互动评论系统)和评论中提取的 20,000 多字的数据。此外, 研究2利用 376 份调查问卷对所提出的结构模型进行了检验。
结果
在由日常博客引发的旅游中, 准社会关系作为唤起情感的催化剂发挥着举足轻重的作用。这一现象与持久参与交织在一起, 并对旅游意向的产生产生直接影响。在持久参与的情境框架内, 目的地生活的自我披露、情境共鸣和情感归属等要素协同作用。这些要素共同支撑着追随者利用准社会关系的过程, 准社会关系在日常视频博客引发的旅游领域中是培育旅游意愿的驱动力。
原创性/价值
本研究提出了“日常视频博客诱导旅游” 的概念, 并强调了准社会关系的情感激励作用, 从而将电影旅游研究扩展至日常微博。随后, 研究在持久参与的框架下探讨了日常视频博客诱发旅游的影响因素, 为日常视频博客诱发旅游中的持久参与提供了新的理解。
Objetivo
Los “vlogs” diarios son un nuevo tipo de turismo cinematográfico poco explorado en la bibliografía. Este estudio pretende explorar los elementos clave de los vlogs diarios que desencadenan la intención de viaje de los seguidores en el marco de la implicación duradera. El estudio destacará el papel inspirador de afecto de las relaciones para-sociales (RPS), ampliando el alcance de la investigación sobre el turismo cinematográfico.
Diseño/metodología/enfoque
En el Estudio 1, el objetivo era investigar los componentes esenciales de la implicación duradera en escenarios de vida en destino. Para ello se analizaron datos cualitativos, incluidos datos de entrevistas realizadas a 15 participantes y más de 20.000 palabras extraídas de blogs, “barrages” (un sistema de comentarios interactivos actualizados al instante) y comentarios. Además, el Estudio 2 utilizó 376 cuestionarios para poner a prueba el modelo estructural propuesto.
Resultados
Dentro del turismo cotidiano inducido por los “vlogs”, la RSP asume un papel fundamental como catalizador para evocar emociones. Este fenómeno se entrelaza con la implicación duradera y tiene un impacto directo en la determinación de la intención de viaje. En el marco contextual de la implicación duradera convergen sinérgicamente elementos como la autodivulgación de la vida en el destino (AD), la resonancia situacional y la pertenencia afectiva. Estos elementos apuntalan colectivamente el proceso a través del cual los seguidores aprovechan el PSR como fuerza motriz para alimentar las intenciones de viaje en el ámbito del turismo cotidiano inducido por los “vlogs”.
Originalidad/valor
Este estudio propone el concepto de turismo diario inducido por “vlogs” y hace hincapié en el papel inspirador de emociones del PSR, para ampliar la investigación sobre el turismo cinematográfico e incluir los “vlogs” diarios. A continuación, el estudio explora los factores que influyen en el turismo diario inducido por “vlogs” bajo el marco de la implicación duradera, proporcionando una nueva comprensión de la implicación duradera en el turismo diario inducido por “vlogs”.
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Yun Lou, Xuanhui Liu, Pei Chen, Kejun Zhang and Lingyun Sun
The purpose of this study is to explore how gender influences peer assessment in team-building activities in China.
Abstract
Purpose
The purpose of this study is to explore how gender influences peer assessment in team-building activities in China.
Design/methodology/approach
A nine-player Werewolf game was adopted to conduct the experiment. Nine abilities were defined to evaluate players’ performances. Before the game, players filled out a self-assessment questionnaire (five-point Likert scale). After the game, players evaluated other game members’ performances using the same questionnaire. Data were analyzed using linear regression.
Findings
The results showed that gender bias clearly existed in team-building activities, with men more likely to receive better peer assessment than women. In addition, when women presented themselves as actively as men did, they received less favorable evaluations than men, whereas their failures were more likely to be exaggerated.
Practical implications
This study may help build harmonious teams for gender equality, and we give practical suggestions respectively from the perspective of female employees, their managers, and their companies.
Originality/value
Given the importance of team-building activities in teamwork, fair evaluations of team-building performances are essential. However, gender influences on peer assessment in team-building activities in China remain unclear. This study adds new and important knowledge to research on gender bias in teams.
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Hongwei Wang, Song Gao, Pei Yin and James Nga-Kwok Liu
Comparative opinions widely exist in online reviews as a common way of expressing consumers’ ideas or preferences toward certain products. Such opinion-rich texts are key proxies…
Abstract
Purpose
Comparative opinions widely exist in online reviews as a common way of expressing consumers’ ideas or preferences toward certain products. Such opinion-rich texts are key proxies for detecting product competitiveness. The purpose of this paper is to set up a model for competitiveness analysis by identifying comparative relations from online reviews for restaurants based on both pattern matching and machine learning.
Design/methodology/approach
The authors define the sub-category of comparative sentences according to Chinese linguistics. Classification rules are set up for each type of comparative relations through class sequence rule. To improve the accuracy of classification, a comparative entity dictionary is then introduced for further identifying comparative sentences. Finally, the authors collect reviews for restaurants from Dianping.com to conduct experiments for testing the proposed model.
Findings
The experiments show that the proposed method outperforms the baseline methods in terms of precision in identifying comparative sentences. On the basis of such comparison-rich sentences, product features and comparative relations are extracted for sentiment analysis, and sentimental score is assigned to each comparative relation to facilitate competitiveness analysis.
Research limitations/implications
Only the explicit comparative relations are discussed, neglecting the implicit ones. Besides that, the study is grounded in the assumption that all features are homogeneous. In some cases, however, the weights to different aspects are not of the same importance to market.
Practical implications
On the basis of comparative relation mining, product features and comparative opinions are extracted for competitiveness analysis, which is of interest to businesses for finding weakness or strength of products, as well as to consumers for making better purchase decisions.
Social implications
Comparative relation mining could be possibly applied in social media for identifying relations among users or products, and ranking users or products, as well as helping companies target and track competitors to enhance competitiveness.
Originality/value
The authors propose a research framework for restaurant competitiveness analysis by mining comparative relations from online consumer reviews. The results would be able to differentiate one restaurant from another in some aspects of interest to consumers, and reveal the changes in these differences over time.