To study the flow character in a micro nozzle.
Abstract
Purpose
To study the flow character in a micro nozzle.
Design/methodology/approach
The flow in the micro nozzle is simulated using the Direct Simulation Monte‐Carlo (DSMC) method. Considering characteristics of high‐temperature gas flow, the Cercignani‐Lampis‐Lord (CLL) gas‐surface interaction model is adopted in the simulation of high‐temperature gas flow in the Laval nozzle at different inlet pressures and temperatures.
Findings
The results showed that as the temperatures of inlet flow increased, the thrust efficiency will increased accordingly, however, the influence of inlet pressure variety on the nozzle performance is insignificant.
Originality/value
A useful reference to the design and performance improvement of micro thruster and MEMS power system.
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Yang Zhao, Hai Wei Yang and Bao Jun Pang
For developing the control technique of air in the manned spacecraft cabin, the CO2 simulate control‐testing equipment is developed to study the CO2 removal equipment in the…
Abstract
For developing the control technique of air in the manned spacecraft cabin, the CO2 simulate control‐testing equipment is developed to study the CO2 removal equipment in the carbon air. The developing process is introduced in this paper. On the basis of overall design, the authors emphasize the study of the cabin interface design and draw a conclusion that disposing the entrance of the gas at the same side of the cabin content the gas intimate mixing. In the design of the flow meter, using the plastic rotor can solve the problem of flow meter pressure loss which is too much by using the glass rotor.
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The purpose of this paper is to provide the historical background of genealogical records and analyze the value of Chinese genealogical research through the study of names and…
Abstract
Purpose
The purpose of this paper is to provide the historical background of genealogical records and analyze the value of Chinese genealogical research through the study of names and genealogical resources.
Design/methodology/approach
The paper examines the historical evolution and value of Chinese genealogical records, with the focus on researching the Islamic Chinese names used by the people living in Guilin. The highlight of this paper includes the analysis and evolution of the Islamic Chinese names commonly adopted by the local people in Guilin. It concludes with the recommendations on emphasizing and making the best use of genealogical records to enhance the research value of Chinese overseas studies.
Findings
The paper covers the history of Islam and describes how the religion was introduced into China, as well as Muslims' ethnicity and identity. It also places focus on the importance of building a research collection in Asian history and Chinese genealogy.
Research limitations/implications
This research study has a strong subject focus on Chinese genealogy, Asian history, and Islamic Chinese surnames. It is a narrow field that few researchers have delved into.
Practical implications
The results of this study will assist students, researchers, and the general public in tracing the origin of their surnames and developing their interest in the social and historical value of Chinese local history and genealogies.
Social implications
The study of Chinese surnames is, by itself, a particular field for researching the social and political implications of contemporary Chinese society during the time the family members lived.
Originality/value
Very little research has been done in the area of Chinese local history and genealogy. The paper would be of value to researchers such as historians, sociologists, ethnologists and archaeologists, as well as students and anyone interested in researching a surname origin, its history and evolution.
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Yung-Cheng Shen, Heng-Yu Lin, Cindy Yunhsin Chou, Po Han Wu and Wei-Hao Yang
This study investigates the role of source familiarity in moderating the effect of service adaptive behavior (SAB) on customer satisfaction. Applying the…
Abstract
Purpose
This study investigates the role of source familiarity in moderating the effect of service adaptive behavior (SAB) on customer satisfaction. Applying the accessibility–diagnosticity framework and situated cognition theory as the theoretical basis, this research hypothesizes that when customers are familiar with the source that provides the service (i.e. brand familiarity for Study 1 and personal familiarity for Study 2), customer satisfaction responses to SAB would be more moderate than when customers are not familiar with the source. Two studies were conducted to test the hypotheses.
Design/methodology/approach
Two experiments manipulating SAB and the brand name familiarity (Study 1) and personal familiarity with the service staff (Study 2) as the source familiarity were conducted. Customer satisfaction as a function of source familiarity was measured to test the hypothesis that source familiarity moderates the relationship between SAB and customer satisfaction.
Findings
Compared to unfamiliar sources, familiar sources generated a more moderate response in customer satisfaction as a function of SAB. High familiarity with the brand and service staff induced top-down, memory-based processing that overrides external stimuli as the basis of satisfaction judgment; bottom-up, stimulus-based processing relying on SAB for judgment kicked in only when the source familiarity is low.
Practical implications
From a practical point of view, this study indicates the importance of SAB, especially for brands with low awareness, and alludes to the comparative importance of relationship building in service delivery processes.
Originality/value
This study contributes to the literature by validating the role of contextual factors in influencing the impact of SAB on customer satisfaction.
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Qiu Wang, Kai-Peng Gan, Hai-Yan Wei, An-Qi Sun, Yi-Cheng Wang and Xiao-Mei Zhou
This study investigated the mediating role of job satisfaction and the moderating role of career growth opportunity in the relationship between public service motivation (PSM) and…
Abstract
Purpose
This study investigated the mediating role of job satisfaction and the moderating role of career growth opportunity in the relationship between public service motivation (PSM) and public employees' turnover intention.
Design/methodology/approach
The authors recruited 587 public employees from Yunnan Province, China to test moderation and mediation hypotheses. The authors conducted confirmatory factor analysis to determine the discriminant and convergent validity of the measures of PSM, turnover intention, job satisfaction and career growth opportunity. Finally, the authors carried out bootstrapping to ascertain direct, indirect and conditional indirect effects.
Findings
PSM had a negative effect on public employees' turnover intention, but this relationship was partially mediated by job satisfaction. Career growth opportunity moderated the association between job satisfaction and turnover intention. In particular, the indirect effect of PSM on turnover intention through job satisfaction weakened under high career growth opportunities.
Practical implications
The results highlighted the significance of PSM and career growth opportunity in shaping public employees' work-related attitudes and behaviors. Public organizations should consider PSM a key criterion in recruitment and selection and pay more attention to the significance of intervening in career growth to satisfy public employees' psychological needs related to individual career development.
Originality/value
This study contributes to the literature on the disputed link between PSM and turnover intention and uncovered the underlying mechanism through which PSM affects public employees' turnover intention by proposing job satisfaction and career growth opportunity as a mediator and moderator, respectively.
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Xiaoxian Yang, Zhifeng Wang, Qi Wang, Ke Wei, Kaiqi Zhang and Jiangang Shi
This study aims to adopt a systematic review approach to examine the existing literature on law and LLMs.It involves analyzing and synthesizing relevant research papers, reports…
Abstract
Purpose
This study aims to adopt a systematic review approach to examine the existing literature on law and LLMs.It involves analyzing and synthesizing relevant research papers, reports and scholarly articles that discuss the use of LLMs in the legal domain. The review encompasses various aspects, including an analysis of LLMs, legal natural language processing (NLP), model tuning techniques, data processing strategies and frameworks for addressing the challenges associated with legal question-and-answer (Q&A) systems. Additionally, the study explores potential applications and services that can benefit from the integration of LLMs in the field of intelligent justice.
Design/methodology/approach
This paper surveys the state-of-the-art research on law LLMs and their application in the field of intelligent justice. The study aims to identify the challenges associated with developing Q&A systems based on LLMs and explores potential directions for future research and development. The ultimate goal is to contribute to the advancement of intelligent justice by effectively leveraging LLMs.
Findings
To effectively apply a law LLM, systematic research on LLM, legal NLP and model adjustment technology is required.
Originality/value
This study contributes to the field of intelligent justice by providing a comprehensive review of the current state of research on law LLMs.
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Ching-Cheng Chao, Fang-Yuan Chen, Ching-Chiao Yang and Chien-Yu Chen
The e-freight program launched by the International Air Transport Association (IATA) has gradually become a standard specification for international air freight operations. This…
Abstract
The e-freight program launched by the International Air Transport Association (IATA) has gradually become a standard specification for international air freight operations. This study examined critical factors affecting air freight forwarders’ decision to adopt the IATA e-freight using a technology-organization-environment model with air freight forwarders in Taiwan as the base. Our findings show that ‘information technology (IT) competence’, ‘trading partner pressure’, ‘government policy’ and ‘competitive pressure’ all have significant positive effects on air freight forwarders’ decision to adopt the e-freight and the top three factors among these are ‘government funding’, ‘government’s active promotion’ and ‘government’s requirement of electronic air waybill (e-AWB)’. Finally, this study proposes strategies that can encourage air freight forwarders to decide on e-freight adoption for the information of relevant oK regyawniozradtison International Air Transport Association (IATA); IATA e-freight; Technology organization environment model; Air freight forwarder
Jia Wang, Haiyang Sun, Ding Chen, Yongjun Huang, Tao Dong, Hai Li, Lingnan Shen and Ziyu Yang
The paper aims to accurately measure the key motion parameters, such as velocity, azimuth and pitch angle, of the small flying object with a non-uniform curve trajectory. It…
Abstract
Purpose
The paper aims to accurately measure the key motion parameters, such as velocity, azimuth and pitch angle, of the small flying object with a non-uniform curve trajectory. It proposes a measurement method and its calculation model of non-uniform curve trajectory using a photoelectric sensor array.
Design/methodology/approach
First, the basic composition of the measurement system and mechanism of photoelectric sensor array are described, respectively. Second, a non-uniform curve mathematical measurement model is constructed differently from the traditional linear trajectory, taking into account the influence of gravity and air resistance. Third, the measurement error of the system is analyzed through numerical simulation. Finally, the accuracy and feasibility of the approach are verified by live-ammunition experiments.
Findings
The results show that the systematic error of the hitting point coordinates can be reduced by 9% compared to the traditional linear measurement model. Consequently, this method can meet the higher measurement requirement for the key motion parameters of the small flying object under the non-uniform curve trajectory. Research limitations/implications (if applicable)- although the approach itself is generalizable, the method is unable to detect the motion parameters of multiple small flying objects.
Research limitations/implications
Although the approach itself is generalizable, the method is unable to detect the motion parameters of the multiple small flying objects.
Practical implications
It is evident that the proposed non-uniform curve measurement model is more precise in quantifying the essential characteristics of the small flying object, particularly in consideration of the environmental conditions.
Social implications
The precise measurement of the key motion parameters of the small flying object can facilitate the enhancement of the protective performance of protective materials.
Originality/value
A novel approach to measurement is proposed, which differs from the conventional uniform trajectory model. To this end, the space construction of the photoelectric sensor array is optimized. The number of the sensors is revised.
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When fast fashion brands launch corporate social responsibility (CSR) programs, consumers may consider these brands to behave hypocritically as their business model is generally…
Abstract
Purpose
When fast fashion brands launch corporate social responsibility (CSR) programs, consumers may consider these brands to behave hypocritically as their business model is generally perceived as being inconsistent with sustainable practices. Built on construal level theory (CLT), this study aims to examine how the benefit appeals that are widely used in CSR initiatives affect perceived corporate hypocrisy and the CSR performance of fast fashion brands.
Design/methodology/approach
This study designed an online experiment with a 2 (fashion brand: fast fashion vs. unknown) × 2 (benefit appeal: self-benefit vs other-benefit) stimulus, using a virtual label named “Eco Care” for experimental manipulation. A total number of 298 Chinese consumers participated in the experiment and they answered an online survey.
Findings
It was found that the brand types (fast fashion vs unknown) and benefit appeals (self-benefit vs other benefit) did not elicit perceived corporate hypocrisy nor did them directly affect perceptions of CSR performance. However, there was a significant interaction effect of them. That is, fast fashion brand’s CSR performance was judged based on how the brand framed its sustainability claims. A fast fashion brand’s CSR label significantly increased hypocrisy perceptions when the label used a self-benefit appeal and the interactive effect of the fast fashion brand and the self-benefit appeal hindered the formation of a green brand image and brand purchase intentions.
Originality/value
This study adds a body of knowledge to the literature by examining the relationship between benefit appeals and perceived corporate hypocrisy from the perspective of CLT. The findings can help fast fashion marketers better understand the critical role of benefit appeals by acknowledging that the misuse of communication strategies may result in unfavorable consequences, thus ruining their efforts to improve their brand’s image.