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As to different angles of attack and nonlinear problems caused by high temperatures in coexisting hypersonic aircraft, people mainly rely on fluid software for research but lack analysis of flow mechanisms. Owing to computational difficulties, few people use numerical algorithms to combine them for discussion. Hence, this study aims to make a deep inquiry into the laminar flow and heat transfer of compressible Newtonian fluid in hypersonic aircraft with small attack angles.

In this paper, on the basis of mass, momentum and energy conservation laws, the governing equations of the hypersonic boundary layer are established. Viscosity, specific heat capacity and thermal conductivity are considered nonlinear functions concerning temperature. In virtue of the MacCormack finite difference method, the stationary numerical solutions are solved directly, and the validity of the algorithm is verified.

The results demonstrate that at Mach number 5, compared to the 0° attack angle, the maximum temperature near-wall at the 3° attack angle increases by about 25%. An enjoyable phenomenon is discovered, where the position corresponding to the maximum wall shear force shifts back as the attack angle and Mach number increase. The relationship between the near-wall maximum temperature versus attack angle and Mach number is fitted through numerical calculation results.

Empirical formulas can be used to estimate heat transfer characteristics at small attack angles, which will guide the design of aircraft thermal protection systems.

In the era of the digital economy, higher demands are placed on versatile talents, and the cultivation of students with innovative and entrepreneurial abilities has become an important issue for the further development of higher education, thus leading to extensive and in-depth research by many scholars. The study summarizes the characteristics and patterns of dual-innovation education at different stages of development, hoping to provide a systematic model for the development of dual-innovation education in China and make up for the shortcomings.

This paper uses Citespace software to visualize and analyze the relevant literature in CNKI and Web of Science databases from a bibliometric perspective, focusing on quantitative analysis in terms of article trends, topic clustering, keyword co-linear networks and topic time evolution, etc., to summarize and sort out the development of innovation and entrepreneurship education research at home and abroad.

The study found that the external characteristics of the literature published in the field of bi-innovation education in China and abroad are slightly different, mainly in that foreign publishers are more closely connected and have formed a more stable ecosystem. In terms of research hotspots, China is still in a critical period of reforming its curriculum and teaching model, and research on the integration of specialization and creative education is in full swing, while foreign countries focus more on the cultivation of students' entrepreneurial awareness and the enhancement of individual effectiveness. In terms of cutting-edge analysis, the main research directions in China are “creative education”, “new engineering”, “integration of industry and education” and “rural revitalization”.

Innovation and entrepreneurship education in China is still in its infancy, and most of the studies lack an overall overview and comparison of foreign studies. Based on the econometric analysis of domestic and foreign literature, this paper proposes a path for domestic innovation and entrepreneurship education reform that can make China's future education reform more effective.

The advent of the new retail era witnessed the consumers’ demand shift from on the traditional product quality to on the full supply chain service quality, and product service and service manufacturing is gradually taking shape. The purpose of this paper is to propose whether there is a “quality bridge” in the dynamic evolution process of retail service supply chain (RSSC) and discuss the system role, steady-state characteristics and dynamic evolution mechanism of service quality in this dynamic evolution process.

This paper proposes the dissipation system structure of the RSSC under the steady-state quality constraint, constructs a Markov chain model (MCM) for the evolution of the service quality of RSSC, and tests the objective existence of the steady-state distribution of the service quality by taking Chinese HJ retail enterprises as samples.

The research value of this study is summarized as follows. The research finds that the evolution of service quality of RSSC is a dynamic and non-linear growth process, which has significant characteristics of complex adaptability and steady-state convergence. The study finds that the quality evolution process of the RSSC is a steady-state convergence process, and there is a steady-state distribution of quality in its co-evolution, in which different process input levels have a significant positive impact on the stable level of quality state. The study finds that the steady state of quality plays a crucial role in the collaborative evolution of the RSSC, that is, when the service quality reaches a certain steady state distribution, the operating efficiency and profit level of the whole chain will show an “explosive” growth trend.

Quality bridge, an original concept in this paper, represents the role of quality steady-state in the operation of RSSC. Based on Markov chain and system simulation tools, this paper verifies the existence of steady-state service quality and its positive effect on the co-evolution and sustainable development of RSSC. When the service quality reaches a certain steady distribution, the operating efficiency and income level of the whole chain will show n trend of explosive growth.

This paper aims to systematically study the effects of reflow temperature and SAC0307 (SAC) content on the micromorphology and mechanical properties of Sn58Bi-xSAC0307 composite solder joints to meet the requirements of high integration and low-temperature packaging of devices and provide references for the application of composite solder joints.

Sn58Bi and SAC0307 solder paste was mechanically mixed in different proportions to prepare Sn58Bi-xSAC0307/ENIG solder joints. The thermal properties, microstructure and mechanical properties of the composite solder joints were studied.

As SAC content in the solder increases, the balling temperature of SnBi-SAC solder gradually increases. The addition of SAC alloy reduces the grain size of large Bi-rich phase, and there are small-sized dispersed Bi and Ag3Sn particles in the bulk solder. The intermetallic compounds composition of the SnBi-xSAC/ENIG solder joint changes from Ni3Sn4 to (Ni, Cu)3Sn4 and (Cu, Ni)6Sn5 with SAC increasing. As the soldering temperature increases, the strength of all solder joints shows a rising trend. Among them, the shear strength of SnBi-20SAC solder joints at a reflow temperature of 150°C is approximately 37 MPa. As the reflow temperature increases to 250°C, the shear strength of solder joints increases to approximately 67 MPa.

This study provides a reference for the optimization of low-temperature solder composition and soldering process under different package designs.

The purpose of this paper is to investigate the predicting roles of extension naming strategies and categorical fit on the transfer of brand personality from a parent brand to its extension brand. Extension naming strategies include direct and indirect naming, while categorical fit is the similarity between an extended product and its parent brand's cognitive category. Further, the interaction effect and the relative effectiveness of various combinations of the two predictors when determining brand personality transfer are also explored.

A 2×2 factorial between‐subject experimental design with one covariate is used to test the proposed hypotheses. The experiment involves 242 participants from a university in Taiwan.

The findings show that consumers perceive higher brand personality transfer when a direct naming strategy is applied or when the parent brand extends to a high perceived fit product. The former is the dominant predictor of brand personality transfer. There also exists an interaction effect between extension naming strategies and categorical fit. Specifically, consumers perceive the highest brand personality transfer when a direct naming strategy is applied for a high fit extended product. Moreover, the use of a direct naming strategy for an extended product with a low categorical fit still leads to a higher degree of parent brand personality than both the other cases in which an indirect naming strategy is applied for either high or low fit extended products. Furthermore, irrespective of the degree of categorical fit, the transfer of brand personality is low when an indirect naming strategy is applied.

The current research is pioneer work in identifying the determinants of brand personality transfer. It also notes the interaction effect and the relative effectiveness of the determinants.

The purpose of this research study is to empirically investigate a hypothesized theoretical framework that captures the impact of brand personality congruence, brand love and brand attachment on brand loyalty in the luxury branding sector.

Empirical data were gathered from 416 millennial shoppers with incomes from US$100,000 and above (High-Earners-Not–Rich-Yet). Structural equation modeling was used to test the hypotheses of the framework developed for the study. Dubai is chosen as the context of the study based on the fact that the luxury brands sector is one of the leading industries in the country, and has a sizeable population of HENRY's.

The findings of this study revealed that brand personality congruence is a critical determinant of brand love and brand loyalty, suggesting congruence between the consumer's personality and the brand is essential to the luxury branding sector. The study also establishes a relationship between brand attachment and brand loyalty.

This study offers new empirical support for the proposition that consumers' emotional aspects like brand personality congruence and brand love are critical for enhancing brand loyalty toward luxury. The findings from this study can provide brand managers with a guide to managing their branding strategies and understand the strategic role of these variables on communication strategies for a new emerging segment of the HENRY's customer segment.

This study contributes to luxury branding and a new segment of millennials by examining the relationship between brand personality congruence, brand love, brand attachment and its effect on brand loyalty in the luxury branding context.

The purpose of this study is to identify what (de)motivates millennial students from undertaking mobility upon graduation and whether this depends on gender, region of origin, prior work experience, level of studies, or international mindset and how. The paper provides insights on the preferred length of mobility and the most (un)attractive regions.

The sample consists of 1,001 millennial students from 77 countries. Data from a quantitative self-reported survey were analysed employing exploratory factor analysis and confirmatory data analyses.

Factors that motivate mobility are personal development, learning about foreign cultures and the opportunity to travel and those that demotivate are a preference for short-term assignments, unwillingness of family to move and disruption of home country life. Factors differ by region, gender, level of current studies and the student's international mindset.

The cohort included only students pursuing a business or technical education. A willingness to accept an international assignment may not necessarily translate into accepting an international assignment due to the effect of the attitude–behaviour gap. The authors do not aim to generalise on the basis of the results since the sample was fairly disproportionate in terms of world regions. We do, however, invite further studies to treat ours as potential input for new and emerging studies of either a quantitative or qualitative nature.

Due to a strong attachment to home, short-term assignments are preferred. Salary and financial benefits remain hygienic factors and motivating factors remain on the “soft” side. Motivating millennials to engage in mobility requires an individualised approach, dependent on region of origin, gender, the level of education, work experience and international mindset.

This study indicates that the factors that (de)motivate millennial students to engage in international assignments differ on the basis of various socio-demographic variables.