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1 – 10 of 379Tao Cheng, Keqin Yan, Jun-Jie Zheng, Xian-Feng Luo, Ding-Bang Zhang, Wan-Hui Xu, Ren-Jie Hu and Yi Zhang
This paper aims to present a simplified solution method for the elasto-plastic consolidation problem under different stress paths.
Abstract
Purpose
This paper aims to present a simplified solution method for the elasto-plastic consolidation problem under different stress paths.
Design/methodology/approach
First, a double-yield-surface model is introduced as the constitutive model framework, and a partial derivative coefficient sequence is obtained by using numerical approximation using Gauss nuclear function to construct a discretization constitutive model which can reflect the influence of different stress paths. Then, the model is introduced to Biot’s consolidation theory. Volumetric strain of each step as the right-hand term, the continuity equation is simplified as a Poisson equation and the fundamental solution is derived by the variable separation method. Based on it, a semi-analytical and semi-numerical method is presented and implemented in a finite element program.
Findings
The method is a simplified solution that is more convenient than traditional coupling stiffness matrix method. Moreover, the consolidation of the semi-infinite foundation model is analyzed. It is shown that the numerical method is sufficiently stable and can reflect the influence of stress path, loading distribution width and some other factors on the deformation of soil skeleton and pore water pressure.
Originality/value
Original features of this research include semi-numerical semi-analytical consolidation method; pore water pressure and settlements of different stress paths are different; maximum surface uplift at 3.5a; and stress path is the main influence factor for settlement when loading width a > 10 m.
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Abstract
Purpose
The purpose of this paper is to investigate the role of cross-listing in overcoming liability of origin (LOO) facing emerging economy corporations (EECs).
Design/methodology/approach
This paper takes Chinese firms' cross-listing in Hong Kong and the firms' establishment of international joint ventures (IJVs) with foreign partners as the research setting. This is an empirical study using Heckman's self-selection model as the primary econometric technique and two-stage least square (2SLS) regressions as the supplementary estimation procedure.
Findings
Cross-listing in developed economies can serve as a signal for EECs to overcome the LOO. In addition, the regional institutional voids of emerging economies (EEs) and state ownership are prominent boundary conditions shaping this effect.
Research limitations/implications
Only Chinese firms and the firms' cross-listing in Hong Kong are considered for the empirical context as a result of data availability.
Practical implications
This paper provides a practical solution for EECs whose internationalisation tends to be hindered by the LOO.
Originality/value
This study is of high importance in that it centres on a distinctive and challenging problem faced with EECs—the LOO. Besides, it ascribes this liability to a matter of information asymmetries and explores how cross-listing can serve as a signal to cope with this challenge.
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Peng Xue, Jie Zheng, Yue Xu, Haiyang Bao and Rui Zhang
This study aims to analyze the transmission characteristics of a long-period grating (LPG) fabricated on plastic optical fibers (POFs) and its refractive index (RI) sensing.
Abstract
Purpose
This study aims to analyze the transmission characteristics of a long-period grating (LPG) fabricated on plastic optical fibers (POFs) and its refractive index (RI) sensing.
Design/methodology/approach
The geometric optic method is used to analyze the factors affecting the transmission characteristics of an LPG on POFs. The RI sensing performances of unbent LPGs and U-bent LPGs fabricated on POFs with different diameters are evaluated experimentally.
Findings
This study shows that the transmission loss caused by LPG strongly depends on the structural parameters of LPG and the environmental RI. For the unbent LPG, the highest RI sensitivity of 1,015%/RI unit (RIU) was obtained in the RI range of 1.33–1.45. For the U-bent LPG without cladding, the highest RI sensitivities of 1,007 and 559%/RIU are obtained in the RI ranges of 1.33–1.40 and 1.40–1.45, respectively.
Originality/value
A geometric optic method is used to analyze the transmission characteristics for an LPG on POFs, and the RI sensing of the LPGs are studied experimentally. The results show the LPG has a good RI sensing performances and is with the features of low-cost, simple structure and easy fabrication.
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Abstract
Purpose
Social media's role in engaging participants in sports events, particularly during the pandemic, is acknowledged. However, previous studies often utilized sports events for diverse objectives but overlooked brand equity's influence on sports event development. And very limited research explores social media's impact on brand equity in esports events, despite its significance. Therefore, this study aims to explore how social media affects esports event brand equity and participants' satisfaction and engagement with social media through brand equity's influence.
Design/methodology/approach
The study focused on League of Legends World Championships (LOLWC) participants, who completed a self-judged questionnaire online. The questionnaire included demographic details and latent constructs. Data analysis involved two steps: exploratory factor analysis (EFA) to assess measurement scale validity and structural equation modeling (SEM) to study relationships between traits.
Findings
The results reveal that, within the esports event context, controlled communication exerts a meaningful and dual impact – both directly and indirectly – on the fundamental components of brand equity. This, in turn, serves as a catalyst for increasing participant contentment and their posting intention.
Originality/value
This study applies brand equity theories to the esports domain, exploring participant-based brand equity concepts, user behavior and the influence of social media communication on event branding and engagement. It also recommends strategies for event improvement, emphasizes controlled communication for brand equity and highlights marketing's role in brand awareness, association and participant satisfaction. Additionally, it suggests government regulation to address cyber violence during esports events.
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Xianping Wei and Wen Jie Zheng
This paper aims to expand the application area of Inconel 718 alloy in marine environment, the sensitivity of pitting corrosion should be analyzed and discussed, especially the…
Abstract
Purpose
This paper aims to expand the application area of Inconel 718 alloy in marine environment, the sensitivity of pitting corrosion should be analyzed and discussed, especially the effect of block carbides.
Design/methodology/approach
Effect of carbides on the sensitivity of pitting corrosion for Inconel 718 alloy was carried out at 30°C in 3.5% NaCl solution using dynamic electrochemical impedance spectroscopy and anodic polarization techniques. In addition, the initiation of pitting corrosion was investigated by immersion test in 0.05 M HCl + 6% FeCl3 solution.
Findings
As a result, the precipitation of carbides, as the initiation of pitting corrosion, increased pitting corrosion susceptibility, especially the block carbides could lead to deep-spalling. Within that process, temperature and potential acted as the main controlling factors, and the effect of the latter was more distinct.
Originality/value
The initiation of pitting corrosion was revealed by the immersion test. The mechanism of pitting corrosion was analyzed and discussed.
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Shen Lei, Cuijuan Qin, Muhammad Ali, Susan Freeman and Zheng Shi-Jie
The purpose of this study is to develop and test a multilevel conceptual model which explains how authentic leadership (AL), through an innovative team atmosphere and promotion of…
Abstract
Purpose
The purpose of this study is to develop and test a multilevel conceptual model which explains how authentic leadership (AL), through an innovative team atmosphere and promotion of self-efficacy, influences creativity. The study delineates two pathways from AL to creativity. The first pathway is an indirect effect through an innovative atmosphere at the team level and self-efficacy at the individual level, while the second pathway focuses on the moderating effect of AL between self-efficacy and individual creativity.
Design/methodology/approach
Data were collected from 58 team leaders and 283 employees in a creative industry park in the Yangtze River Delta region from China. Path analysis was conducted to test the proposed hypotheses using the statistical package M-plus (v. 7).
Findings
The results reveal that AL is an important antecedent of creativity. Furthermore, an innovation-based atmosphere at the team level mediates the theorized relationship between AL and individual creativity. However, creative self-efficacy at the individual level does not mediate this relationship. Finally, the study found that AL moderates the relationship between creative self-efficacy and individual creativity.
Originality/value
The implications of this study highlight important considerations for enterprises in creative industry parks within and beyond China. This study provides industry leaders with a clearer and more insightful and coherent means of understanding the mediating mechanism between AL and creativity, and the moderating effects of AL between individual self-efficacy and creativity through a new linkage model.
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Biao Ma, Liang Yu, Man Chen, He Yan Li and Liang Jie Zheng
This paper aims to investigate the thermal characteristics of the clutch hydraulic system under various oil flow conditions. Increasing the oil flow is one of the most important…
Abstract
Purpose
This paper aims to investigate the thermal characteristics of the clutch hydraulic system under various oil flow conditions. Increasing the oil flow is one of the most important approaches to reduce the clutch temperature. However, the effect of the oil flow on the clutch temperature remains to be explored.
Design/methodology/approach
The thermal resistance network model and the lumped parameter method are used to study the thermal characteristics of the clutch hydraulic system. The predicted temperature variations of the clutch and the oil are compared with experimental data.
Findings
Results demonstrate that the larger the friction power is, the higher the temperatures of the clutch and the oil are. However, the temperature growth rates of the clutch and oil present different trends: the former decreases gradually and the latter increases constantly. Additionally, increasing the oil flow within a certain range gives rise to the decrease of clutch temperature and the increase of oil temperature; nevertheless, their variation trends are gradually weakening. When the oil flow is large enough, it brings a slight effect on the clutch temperature rise.
Originality/value
This paper extends the knowledge into the oil flow supply of the clutch hydraulic system. The conclusions can provide a theoretical guidance for the oil management of the transmission system. Additionally, the thermal resistance network model is also effective and efficient for other hydraulic equipment to predict the temperature variation.
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Abstract
Purpose
The purpose of this paper is to build a new deployable antenna with folded scissors ribs and to evaluate the reasonable characteristics of this new structure.
Design/methodology/approach
Based on the TerrStar-1 satellite, virtual design and shapes forming are considered in this paper with the structure design of the new antenna. Considering the relaxation units in net surface, form-finding evaluation is used to build mathematical model and operate the optimization algorithm so that the design of the new antenna with folded scissors ribs is achieved. Simulations are carried out to verify the antenna proposed.
Findings
It is found that the antenna with folded scissors ribs can be developed smoothly in the space.
Practical implications
The proposed the antenna with folded scissors ribs can be considered as a fall-back alternative for large antenna, with a diameter of over 10 m in the space, or is seen as another option for the system with a simple rigid structure.
Originality/value
Different from traditional antenna, it provides a valuable reference for the further research of large deployable antenna in space. The antenna in this paper is able to develop more than 30 m of diameter. Meanwhile, the surface density and the natural frequency and the root-mean-square error in surface are superior to those of the traditional antenna.
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Ching‐Jui Keng, Tseng‐Lung Huang, Li‐Jie Zheng and Maxwell K. Hsu
The purpose of this study is to explore the impacts of service encounters on customer experiential value and subsequently on customer behavioral intentions in a shopping mall…
Abstract
Purpose
The purpose of this study is to explore the impacts of service encounters on customer experiential value and subsequently on customer behavioral intentions in a shopping mall context in Taiwan.
Design/methodology/approach
Data were gathered using mall intercepts at three large shopping malls in northern Taiwan. Structural equation modeling was employed to assess the proposed research model empirically.
Findings
The empirical results revealed that: personal interaction encounters positively influenced perceptions of efficiency and excellence value; physical environment encounters positively affected perceptions of playfulness and aesthetics; and all dimensions of customer experiential value (i.e. efficiency, service excellence, playfulness, and aesthetics) positively affected customer behavioral intentions.
Originality/value
Following Bitner's suggestion in 1990, the present study classified service encounters into two dimensions – personal interaction encounters and physical environment encounters. Further, the empirical findings revealed that customer experiential value mediated the relationship between service encounters and consumer behavioral intentions.
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Xiaoming Zhang, Chen Lei, Jun Liu, Jie Li, Jie Tan, Chen Lu, Zheng-Zheng Chao and Yu-Zhang Wan
In spite of the vehicle, magnetic field interference can be reduced by some measures and techniques in ammunition design and manufacturing stage, the corruption of the vehicle…
Abstract
Purpose
In spite of the vehicle, magnetic field interference can be reduced by some measures and techniques in ammunition design and manufacturing stage, the corruption of the vehicle magnetic field can still reach hundreds to thousands of nanoteslas. Besides, the magnetic field that the ferromagnetic materials generate in response to the strong magnetic field in the vicinity of the body. So, a real-time and accurate vehicle magnetic field calibration method is needed to improve the real-time measurement accuracy of the geomagnetic field for spinning projectiles.
Design/methodology/approach
Unlike the past two-step calibration method, the algorithm uses a linear model to calibrate the magnetic measurement error in real-time. In the method, the elliptical model of magnetometer measurement is established to convert the coefficients of hard and soft iron errors into the parameters of the elliptic equation. Then, the parameters are estimated by recursive least square estimator in real-time. Finally, the initial conditions for the estimator are established using prior knowledge method or static calibration method.
Findings
Studies show the proposed algorithm has remarkable estimation accuracy and robustness and it realizes calibration the magnetic measurement error in real-time. A turntable experiments indicate that the post-calibration residuals approximate the measurement noise of the magnetometer and the roll accuracy is better than 1°. The algorithm is restricted to biaxial magnetometers’ calibration in real-time as expressed in this paper. It, however, should be possible to broaden this method’s applicability to triaxial magnetometers' calibration in real-time.
Originality/value
Unlike the past two-step calibration method, the algorithm uses a linear model to calibrate the magnetic measurement error in real-time and the calculation is small. Besides, it does not take up storage space. The proposed algorithm has remarkable estimation accuracy and robustness and it realizes calibration the magnetic measurement error in real time. The algorithm is restricted to biaxial magnetometers’ calibration in real-time as expressed in this paper. It, however, should be possible to broaden this method’s applicability to triaxial magnetometers’ calibration in real-time.
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