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A physically-based elasto-viscoplastic constitutive model is proposed to examine the size effects of the precipitate and blocks on the creep for martensitic heat-resistant steels with both the dislocation creep and diffusional creep mechanisms considered.

The model relies upon the initial dislocation density and the sizes of M₂₃C₆ carbide and MX carbonitride, through the use of internal variable based governing equations to address the dislocation density evolution and precipitate coarsening processes. Most parameters of the model can be obtained from existing literature, while a small subset requires calibration. Based on the least-squares fitting method, the calibration is successfully done by comparing the modeling and experimental results of the steady state creep rate at 600° C across a wide range of applied stresses.

The model predictions of the creep responses at various stresses and temperatures, the carbide coarsening and the dislocation density evolution are consistent with the experimental data in literature. The modeling results indicate that considerable effect of the sizes of precipitates occurs only during the creep at relatively high stress levels where dislocation creep dominates, while the martensite block size effect happens during creep at relatively low stress levels where diffusion creep dominates. The size effect of M₂₃C₆ carbide on the steady creep rate is more significant than that of MX precipitate.

The present study also reveals that the two creep mechanisms compete such that at a given temperature the contribution of the diffusion creep mechanism decreases with increasing stress, while the contribution of the dislocation creep mechanism increases.

This paper aims to develop an efficient evaluation method to more intuitively and effectively investigate the influence of the wing fuel mass variations because of fuel burn on transonic aeroelasticity.

The proposed efficient aeroelastic evaluation method is developed by extending the standard computational fluid dynamics (CFD)-based proper orthogonal decomposition (POD)/reduced order model (ROM).

The results of this paper show that the proposed aeroelastic efficient evaluation method can accurately and efficiently predict the aeroelastic response and flutter boundary when the wing fuel mass vary because of fuel burn. It also shows that the wing fuel mass variations have a significant effect on transonic aeroelasticity; the flutter speed increases as the wing fuel mass decreases. Without rebuilding an expensive, time-consuming CFD-based POD/ROM for each wing fuel mass variation, the computational cost of the proposed method is reduced obviously. It also shows that the computational efficiency improvement grows linearly with the number of model cases.

The paper presents a potentially powerful tool to more intuitively and effectively investigate the influence of the wing fuel mass variation on transonic aeroelasticity, and the results form a theoretical and methodological basis for further research.

The proposed evaluation method makes it a reality to apply the efficient standard CFD-based POD/ROM to investigate the influence of the wing fuel mass variation because of fuel burn on transonic aeroelasticity. The proposed efficient aeroelastic evaluation method, therefore, is ideally suited to deal with the investigation of the influence of wing fuel mass variations on transonic aeroelasticity and may have the potential to reduce the overall cost of aircraft design.

This case was designed for use at the undergraduate and MBA level in human resource management and international business. Upon completion of the case study discussion and assignments, students will be able to: (1) understand human resource management in multinational corporations and the importance of cross-cultural management and human resource integration in acquisitions; (2) understand the challenges and solutions faced by multinational corporations in the process of expansion; (3) analysis of what characteristics should be considered in CEO selection for managing a newly acquired company; and (4) analyze how to better promote global human resource management from the dimensions of localized HRM system reform and human resource structure reconstruction.

After a long period of negotiation, exploration, suspension and restart, Geely Group finally acquired 49.9% of the shares of DRB’s Proton Holding and 51% of the shares of the luxury car brand, Lotus Group. On the afternoon of May 24, Geely Holding Group held an acquisition signing ceremony with the Malaysia DRB-HICOM Berhad (hereinafter referred to as DRB). Geely’s commercial territory now extended into Southeast Asia, and its product spectrum increased to luxury sports cars.However, the completion of the acquisition did not mean peace of mind. On the contrary, Geely still faced a series of challenges because of differences in cultural background. The national cultures of the two countries (China and Malaysia) were very different, and so were the values of the two enterprises. Facing the challenges of promoting global human resource integration, Geely needs to make a fundamental decision on the HRM mode in the new-acquired company. Should Geely transplant its own management practice into the Proton, or adopt localized HRM philosophy? Which kind of global HRM practice would be more effective for supporting the new-acquired company developments in the future? In the post-acquisition management, how to better realize the global human resources integration become a key problem faced by Geely.

This case was designed for use at the undergraduate and MBA level in human resource management and international business.

Teaching notes are available for educators only.

CSS 6: Human Resource Management.

The purpose of this paper is to design a new trajectory error compensation method to improve the trajectory tracking performance and compliance of the knee exoskeleton in human–exoskeleton interaction motion.

A trajectory error compensation method based on admittance-extended Kalman filter (AEKF) error fusion for human–exoskeleton interaction control. The admittance controller is used to calculate the trajectory error adjustment through the feedback human–exoskeleton interaction force, and the actual trajectory error is obtained through the encoder feedback of exoskeleton and the designed trajectory. By using the fusion and prediction characteristics of EKF, the calculated trajectory error adjustment and the actual error are fused to obtain a new trajectory error compensation, which is feedback to the knee exoskeleton controller. This method is designed to be capable of improving the trajectory tracking performance of the knee exoskeleton and enhancing the compliance of knee exoskeleton interaction.

Six volunteers conducted comparative experiments on four different motion frequencies. The experimental results show that this method can effectively improve the trajectory tracking performance and compliance of the knee exoskeleton in human–exoskeleton interaction.

The AEKF method first uses the data fusion idea to fuse the estimated error with measurement errors, obtaining more accurate trajectory error compensation for the knee exoskeleton motion control. This work provides great benefits for the trajectory tracking performance and compliance of lower limb exoskeletons in human–exoskeleton interaction movements.

This study explores how establishing an agile supply chain ecosystem (ASCE) during the COVID-19 pandemic impacts three listed auto firms’ financial and customer performance in China. Drawing on the theory of supply chain resilience, responsiveness and restoration (3R capabilities), we collect, mine and analyze unstructured social media data from Dongfeng Motor Corporation (DFM), BYD Company Limited (BYD) and SAIC Motor Corporation Limited (SAIC), all of which have production plants in Wuhan.

Data mining was conducted on 3,528 comments involving DFM, BYD and SAIC from 190 uploaders in the stages of “Early COVID-19 Period (January 23-May 31, 2020)” and “Enhanced Preparedness and Vaccine Launch Period (September 8, 2020–January 15, 2021)”. Our conceptual model of an ASCE was tested by adopting structural equation modelling and verified by the DFM case study.

The study finds that the 3R capabilities of the supply chain have a positive effect on establishing an automotive agile supply chain ecosystem. Establishing the automotive agile supply chain ecosystem has promoted corporate financial performance and customer performance, but the mechanism of action presents a delayed feature.

This study refines the definitions and application of the 3Rs concerning an ASCE in the automotive industry. Through text mining technology and statistical analysis methods, we uncover and discuss the impact of COVID-19 on the performance of three auto companies in China and examine how ASCE establishment plays a role. Constructing an ASCE provides a theoretical basis and realistic approach for the long-term and healthy development of the automotive supply chain.

The rapid development of Intelligent and Connected Vehicles (ICVs) has boomed a new round of global technological and industrial revolution in recent decades. The Technology Roadmap of Intelligent and Connected Vehicles (2020) comprehensively analyzes the technical architecture, research status and future trends of ICVs. The methodology that supports the roadmap should get studied.

This paper interprets the roadmap from the aspects of strategic significance, technical content and characteristics of the roadmap, and evaluates the impact of the roadmap on researchers, industries and international strategies.

The technical architecture of ICVs as the “three rows and two columns” structure is studied, the methodology that supported the roadmap is explained with a case study and the influence of key technologies with proposed development routes is analyzed.

This paper could help researchers understand both thoughts and methodologies behind the technology roadmap of ICVs.

Based on DNase I and reduced graphene oxide (rGO)-magnetic silicon microspheres (MNPS), a highly sensitive and selective fluorescent probe for the detection of PD-L1 was developed.

Here °C we present a feasibility of biosensor to detection of PD-L1 in lung tumors plasma. In the absence of PD-L1°C the PD-L1 aptamer is absorbed on the surface of graphene oxide modified magnetic nanoparticles °8rGO-MNPS°9 and leading to effective fluorescence quenching. Upon adding PD-L1°C the aptamer sequences could be specifically recognized by PD-L1 and the aptamer/PD-L1 complex is formed°C resulting in the recovery of quenched fluorescence.

This sensor can detect PD-L1 with a linear range from 100 pg mL⁻¹ to 100 ng mL⁻¹, and a detection limit of 10 pg•m⁻¹ was achieved.

This method provides an easy and sensitive method for the detection of PD-L1 and will be beneficial to the early diagnosis and prognosis of tumors.

Growth of China’s sport industry has brought tremendous opportunities to sport and non-sport organizations domestically and globally; nonetheless, the enlargement has also raised many challenges. To a great extent, China has chartered into unprecedented new sport business territories. Because of social, cultural, historical, and governmental differences, many theories and knowledge, professional experiences, best practices, and lessons learned in Western countries may or may not be directly applicable to the diverse setting(s) in China. Until now, only limited empirical evidence is available to address these challenges. Thus, formulating a special issue in the International Journal of Sports Marketing and Sponsorship to examine contemporary subject matters and concerns would be significantly meaningful to help understand, stimulate, and improve sport business operations in China, provide guidance to transnational organizations for doing sport-related business in China, offer constructive suggestions for Chinese corporations going global, and ultimately build up theories and best practices to address unique perspectives of China’s sport industry. The paper aims to discuss these issues.

This paper is conceptual and presents a review of literature.

In addition to this leading paper, there are a total of eight manuscripts selected for this special issue inquiring on contemporary matters and development of China’s sport industry, including four short articles that were formulated based on qualitative research information derived from case studies and interviews and four full-length articles that adopted a quantitative research protocol or a mixed research design involving both qualitative and quantitative information.

While it is impossible to capture all contemporary topics in the development of China’s sport industry within one journal issue, articles selected in this special issue of the International Journal of Sports Marketing and Sponsorship have provided useful highlights into some of the critical issues faced by the industry and research directions by academicians. It is sincerely expected that studies in this special issue would help inspire more scholarly inquires and ultimately improve the continued formulation and advancement of a strong sport industry in China.

While it is impossible to capture all contemporary topics in the development of China’s sport industry within one journal issue, articles selected in this special issue of the International Journal of Sports Marketing and Sponsorship have provided useful highlights into some of the critical issues faced by the industry and research directions by academicians. It is sincerely expected that studies in this special issue would help inspire more scholarly inquires and ultimately improve the continued formulation and advancement of a strong sport industry in China.

While it is impossible to capture all contemporary topics in the development of China’s sport industry within one journal issue, articles selected in this special issue of the International Journal of Sports Marketing and Sponsorship have provided useful highlights into some of the critical issues faced by the industry and research directions by academicians. It is sincerely expected that studies in this special issue would help inspire more scholarly inquires and ultimately improve the continued formulation and advancement of a strong sport industry in China.

While it is impossible to capture all contemporary topics in the development of China’s sport industry within one journal issue, articles selected in this special issue of the International Journal of Sports Marketing and Sponsorship have provided useful highlights into some of the critical issues faced by the industry and research directions by academicians. It is sincerely expected that studies in this special issue would help inspire more scholarly inquires and ultimately improve the continued formulation and advancement of a strong sport industry in China.

The purpose of this paper is to develop a scale to measure the legacy of psychic income associated with the Olympic Games.

Using the 2008 Beijing Games as an example, data were collected from Beijing residents through structured questionnaires. A scale of measuring psychic income (SPI) was developed through conducting a confirmatory factor analysis (CFA) based on a sample of 375.

In the CFA estimation, a seven-factor SPI was identified with 24 pertinent items retained. This seven-factor model displays good fit to the data, construct validity, and reliability.

Despite the importance of psychic income widely recognized in the existing literature, there has been a lack of valid scales to measure major sports events psychic income in general and Olympic psychic income in particular. This paper develops a multidimensional scale from the host community perspective, which can provide academics and local organizers with a reliable and valid tool to assess Olympic psychic income.

International business

Undergraduate/graduate/executive education.

China has become the world's largest producer of automobiles, surpassing the USA and Japan. The Chinese auto industry differs quite significantly from those countries though. While the industry exhibits a substantial degree of concentration in the USA and Japan in early 2011, it remained highly fragmented in China. The Chinese Central Government had announced a desire for consolidation, yet it remained unclear whether a significant shakeout would occur in the near term.

Like many Chinese automakers, Chang'an partnered with well-known global auto makers to develop, produce, and distribute its products. In the coming years, Chang'an hoped to develop more independence from its foreign partners, including the production and distribution of self-branded cars. However, the company grappled with how it could strive for independence while managing its existing joint ventures. Executives worried too about how to compete with foreign automakers who had achieved global economies of scale.

The case provides a rich description of the evolution of the Chinese auto industry, and it documents how the Chinese industry differs from other global markets. Readers can analyze the extent to which they believe scale economies provide foreign firms an advantage over smaller Chinese rivals, and they can evaluate the conventional wisdom regarding the industry's minimum efficient scale. The case also provides a detailed account of Chang'an's rise to prominence. The case concludes by offering an in-depth description of the firm's key rivals, and it presents the key questions being considered by Chang'an executives in 2011.

Enables students to examine how and why an industry's structure can differ substantially across geographic markets.

Enables students to examine whether the need to achieve economies of scale may cause substantial consolidation in the Chinese auto industry.

Provides an opportunity to evaluate the pros and cons of the joint venture strategies employed in China.

Provides an opportunity to examine how a relatively small firm can position itself against large multinationals in a high-growth emerging market.

Teaching notes.