Songtao Huang, Jie Ye, Haozhe Wang, Baojin Li, Anwen Shen and Junli Deng
Traditional switching harmonic suppressor design methods require domain experts to adjust design parameters due to various complex performance requirements and practical…
Abstract
Purpose
Traditional switching harmonic suppressor design methods require domain experts to adjust design parameters due to various complex performance requirements and practical limitations in switching ripple suppressor designs. The purpose of this paper is to present a method for filter parameter design.
Design/methodology/approach
An improved non-dominated sorting genetic algorithm II (NSGA II) was used in the inductor-capacitor-inductor (LCL) filter design to find the optimal design parameters, and a method was proposed to handle the constraints by transforming the them into decision variables.
Findings
The performance of the proposed algorithm in parameter designing was verified by simulation on MATLAB and experimental results on hardware-in-the-loop plat-form with StarSim software. The results indicate that the optimization algorithm has a better effect than the traditional expert parameters on each optimization index, especially on the switching harmonic suppression.
Originality/value
The paper presents an improved multi-objective optimization algorithm with ingenious constraints handing to obtain better filter parameters and reduces switching harmonics.
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Mingge Li, Zhongjun Yin, Xiaoming Huang, Jie Ma and Zhijie Liu
The purpose of this paper is to propose a casting process for the production of double-chamber soft fingers, which avoids the problems of air leakage and fracture caused by…
Abstract
Purpose
The purpose of this paper is to propose a casting process for the production of double-chamber soft fingers, which avoids the problems of air leakage and fracture caused by multistep casting. This proposed method facilitates the simultaneous casting of the inflation chamber and the jamming chamber.
Design/methodology/approach
An integrated molding technology based on the lost wax casting method is proposed for the manufacture of double-chamber soft fingers. The solid wax core is assembled with the mold, and then liquid silicone rubber is injected into it. After cooling and solidification, the mold is stripped off and heated in boiling water, so that the solid wax core melts and precipitates, and the integrated soft finger is obtained.
Findings
The performance and fatigue tests of the soft fingers produced by the proposed method have been carried out. The results show that the manufacturing method can significantly improve the fatigue resistance and stability of the soft fingers, while also avoiding the problems such as air leakage and cracking.
Originality/value
The improvement of the previous multistep casting method of soft fingers is proposed, and the integrated molding manufacturing method is proposed to avoid the problems caused by secondary bonding.
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To obtain an understanding of the disposition of Chinese agriculture.
Abstract
Purpose
To obtain an understanding of the disposition of Chinese agriculture.
Design/methodology/approach
By applying econometric methods to make a narrow assessment on several productive factors in Chinese agriculture covering most of the era of Reforms and openness, a picture portraying the traits of Chinese rural society is provided. The author delves deep into the foundations of econometric as well as western society to draw comparisons between Occidental and oriental society.
Findings
Unlike the widely held view that implicitly identifies the basis of studies in Chinese economical development with that in western nations, the presented idea illuminates the intrinsic “upper‐hand” disposition of Chinese rural society, which has so far practically made China tread a path different from that in western society.
Research limitations/implications
Since the paper deals with the whole picture of Chinese agriculture, it presumably may cause partial loss of accuracy in econometric calculations.
Practical implications
It provides a fresh yet in‐depth idea for western researchers.
Originality/value
The paper breaks fresh ground in Chinese study and economic theory for researchers who are confused with the intricacy of the Chinese agricultural economy.
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Chenyan Gu, Shuyue Jia and Xinsiyu Chang
As e-commerce platforms and merchants increasingly adopt promotion preannouncements, understanding their spillover effects on other products within and across brands is crucial…
Abstract
Purpose
As e-commerce platforms and merchants increasingly adopt promotion preannouncements, understanding their spillover effects on other products within and across brands is crucial. This study aims to comprehensively investigate these spillover effects to optimize the use of promotion preannouncements.
Design/methodology/approach
The study uses quantitative analysis of real-world e-commerce data and four between-subjects experiments to examine the spillover effects of promotion preannouncements.
Findings
Promotion preannouncements negatively impact products within the same brand and category, while positively influencing products in different categories. Additionally, preannouncements create negative spillover effects on products within the same brand echelon. Moreover, powerful brands are more likely to harm different-echelon products compared to weak brands.
Research limitations/implications
The experiment has its own limitations because there will be differences between the simulated scenario and the real shopping scenario. Considering the practical factors, randomized field experiments cannot be conducted at the e-commerce platform level.
Practical implications
The findings provide managerial insights on brands and merchants to arrange the preannounced products and products being sold.
Originality/value
This study contributes to the field of preannouncements by developing new knowledge through a combination of quantitative analysis using e-commerce data and experiments, capturing the novel phenomenon of promotion preannouncement and its spillover effects. We study the preannouncement phase of promotions, thus enriching the multistage research on promotions. In addition, this paper innovatively divides the spillover effects of promotion preannouncement into four components and uses brand echelon as a categorization factor.
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Abstract
Purpose
This study aims to explore work–life integration (WLI) as a crucial mechanism underpinning the transformation of the hospitality and tourism industry from shifts in work paradigms, including rapid technological advancements, flexible work forms, quiet quitting, increasing awareness of well-being, cultural diversity and gender disparity. It further develops the coping strategies and research agenda.
Design/methodology/approach
Through the bridged lens of the work–life boundary theory and conservation of resources theory, this research critically analyzes the literature on emerging work paradigms and WLI and develops a conceptual framework guiding the systematic examination of the WLI mechanisms underpinning the influence from work paradigm shifts.
Findings
The analysis reveals the underpinning mechanisms in managing WLI, highlighting the importance of systematic and customized work–life management strategies in adapting to evolving work paradigms. An integrated conceptual framework is developed to guide future research and practical applications.
Practical implications
This study underscores the critical need for strategic WLI management, emphasizing its importance for sustainable industry development. It also proposes actionable work–life management strategies for stakeholders, aiming for positive outcomes at personal, organizational and industrial levels amid the paradigm shifts.
Originality/value
The comprehensive conceptual framework uniquely bridged two theories that afford a novel, interconnected and in-depth approach to analyzing how work paradigm shifts reshape the industry. It further broadens the research agenda on WLI, with promising research directions proposed for advancing the understanding of the ever-evolving hospitality and tourism work landscapes.
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Abstract
Purpose
This paper aims to develop a robot for tightening charged bolt to solve the shortcomings of high labor intensity, low efficiency, high risk and poor reliability in artificially tightening drainage board bolt of strain clamp for high voltage transmission line. Realizing bolt-nut capture and location by manipulator is a critical process to complete the whole working task. To solve such key technology, an autonomous location control method for N-joint robot manipulator based on kinematics was proposed.
Design/methodology/approach
Through D-H kinematics analysis under flexible working environment of transmission line, the autonomous location control of double manipulators can be abstracted as a nonlinear approximation problem based on joint inverse kinematics. In addition, regarding the complex coupling relationship among different joint angles and the complex decoupling process which leads to the non-uniqueness of inverse solution, an improved backpropagation (BP) network was proposed based on the combination of dynamic adaptive adjustment of learning rate and variable momentum factor, so that the inverse kinematics of manipulator can be solved and the optimization evaluation mechanism of inverse solution can be presented. The proposed autonomous location control method is of adaptability to flexible environment and structural parameters of different drainage boards. The simulation results verified the effectiveness of the proposed method. Compared with the other location control, this method can achieve faster location speed, higher precision and lower hardware cost. Finally, the field operation test further validated that such autonomous location control method was of strong engineering practicability.
Findings
The proposed autonomous location control method is adaptable to a flexible environment and to the structural parameters of different types of drainage board. Simulation results confirm the effectiveness of the proposed method, which, in comparison with other approaches to location control, can achieve faster location, higher precision and lower hardware cost. Finally, a field test further confirms the engineering practicability of the proposed autonomous location control method.
Originality/value
The proposed method can achieve faster location speed, higher precision which meet the requirement of real-time control relative to the standard BP algorithm. Moreover, it is of strong adaptability to flexible environment and structural parameters for different drainage board. Field operation experiment further validated the engineering practicability of the method.
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Ye Zhang, Jie Gao, Shu Tian Cole and Peter Ricci
To sufficiently fulfill the travel potential of people with mobility impairments (PwMIs), this study aims to propose a valuable supplement to facility/service accommodation by…
Abstract
Purpose
To sufficiently fulfill the travel potential of people with mobility impairments (PwMIs), this study aims to propose a valuable supplement to facility/service accommodation by hospitality/tourism businesses by identifying and purposefully cultivating the superior motivation types for empowering PwMI’s travel pursuits despite challenges. To this end, the study proposes a self-determined versus controlled motivation subdivision to the predominant travel motivation typologies, with its practical value, theoretical value and application feasibility verified.
Design/methodology/approach
To ensure the verification reliability across challenge travels, the study adopts an extreme groups design for data collection. Qualtrics surveys situated in two resort-package scenarios contrast in facility/service accommodation levels are paired with two US PwMI groups contrast in travel capabilities. An unconventional mix of analytical information and seemingly unrelated regressions are adopted for data analyses.
Findings
Self-determined motivations are found as the superior facilitators of PwMI’s challenging resort-travel pursuits, confirming the practical value of the proposed motivation subdivision. The theoretical value is verified given the subdivision’s significant explanatory power for resort-travel attitude and behavioral intentions, after controlling for travel purpose fulfillment. It is also feasible to achieve the targeted cultivation of self-determined motivations by supporting the basic physiological needs of autonomy, competence and relatedness.
Practical implications
The study’s context-based findings on the effective motivational mechanisms for PwMI can guide hospitality/tourism businesses to improve PwMI-targeted marketing effectiveness and efficiency.
Originality/value
Key theoretical contributions include expanding the explanatory power of travel motivation typologies, enhanced integration of self-determination theory into travel motivation conceptualization and more accurate reflection of the widespread presence of social factors in travel motivations.
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Ye Zhang, Jie Gao, Anil Bilgihan and Melanie Lorenz
Hospitality businesses have been challenged to pick fitting electronic word-of-mouth (eWOM) management strategies, yet accurate return on investment assessments and contextual…
Abstract
Purpose
Hospitality businesses have been challenged to pick fitting electronic word-of-mouth (eWOM) management strategies, yet accurate return on investment assessments and contextual contingencies interpretation essential for leveraging eWOM power are largely absent. This study aims to fill these gaps and develop a tool aiming at more holistic and accurate eWOM management assessment.
Design/methodology/approach
An agent-based model is developed based on eWOM-related hospitality/business theories and empirical evidence on the NetLogo 6.0.2 platform, wherein a series of simulated experiments are conducted.
Findings
Simulation patterns suggest that conformity to the majority’s choice of eWOM usage can be beneficial for consumption satisfaction, yet conformity to a group’s eWOM posting choice can compromise satisfaction. Compared to the brief reputation-boosting benefit of exaggerated advertising, honesty in advertising is preferable given its compatibility with competing eWOM distribution and long-term reputation benefits.
Practical implications
A preliminary tool is developed for hospitality businesses that aids the clearer interpretation of and more accurate/cost-efficient assessment of effectiveness in managing eWOM distribution. Generic directions for improved eWOM management are also provided.
Originality/value
A prototype model is established that surpasses existing models in its ability to capture the complexity of eWOM management and more accurately assess management effectiveness. The authors also reveal emerging novel patterns concerning the interactive dynamics of eWOM behaviors and contextual influences. The research also adds to the scarce agent-based model applications in hospitality research/practices and recommends future potential applications.