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The purpose of this paper is to design a component synthesis method to suppress the vibration of the flexible spacecraft, which has the constant amplitude force/moment actuator.

The authors proposed a method to construct constant amplitude of time delay and composite coefficient sequences based on the principles of the component synthesis vibration suppression (CSVS). The associated design strategy of the CSVS torque control is also developed. The dynamic model consisting of a single axis rotating rigid central body and a fixed flexibility panel is used to validate the proposed method. Constraint modal and free modal method are both tested to analyse the natural frequencies of the panel and dynamic properties of rigid–flexible decoupling system, under the conditions of known and unknown frequencies. The feasibility of constructing CSVS control force based on the constraint modal frequency is also analysed.

The proposed method can suppress multistage vibration and has arbitrary order robustness for each order frequencies simultaneously. Simulation results show that only the duration time of the actuator has to be set for the proposed method, reasonable vibration suppression effect can be achieved.

The method can be used in spacecraft, especially flexible spacecraft to suppress the vibration; the approach is convenient for engineering application and can be easily designed.

The authors proposed a method to construct constant amplitude of time delay and composite coefficient sequences based on the principles of the CSVS.

The authors of this chapter investigate internationalisation strategies of small and medium-sized companies (SMEs) in China. We highlight the specific challenges that Chinese SMEs encounter when selecting international country markets in terms of distance and entry speed. The authors adopt an ambidexterity perspective that differs from traditional explanations of internationalisation behaviour by highlighting the need to balance seemingly disparate options for international expansion. Three cases provide an illustration of how Chinese companies combine distant with proximate market entries and slow with accelerated entry speed. The authors highlight how these strategies can drive and enhance international aspirations of Chinese SMEs.

Information and communication technology (ICT) usage is pervasive among present day youth, with about 95% of youth ages 12–17 years reporting use of the Internet. Due to the proliferation of ICT use among this generation, it is important to understand the impacts of ICT usage on well-being. The goal of this study was to determine the impact of ICT usage on psychological well-being among a sample of urban, predominately African American youth.

Paper and pencil surveys were administered to fourth and fifth grade students enrolled in 27 elementary schools in the southeastern United States. Relationships between hours using various types of ICTs and the frequency of Internet activities on depression, hopelessness, self-esteem, and belonging were examined using Ordinary Least Squares (OLS) regression.

Results indicate that ICT usage has both positive and negative implications for psychological well-being, depending upon the type of ICT use and outcome being examined.

The proliferation of ICT usage among present day youth may actually lessen its impact on psychological well-being. Since the amount of ICT usage does not seem to influence psychological well-being, future research should examine the impact of ICT content on psychological well-being.

The field of global leadership has flourished and advanced in the preceding decade. However, in contrast to the term global leadership, which enjoys conceptual clarity enabling accumulative progress, the construct of global leadership effectiveness is comparatively undertheorized, with instances of definitional ambiguity and disjointed methodological operationalizations across studies. The purpose of this chapter is, thus, to provide a systematic review of the global leadership effectiveness literature. In doing so, our contributions are fourfold. First, we offer an inclusive, comprehensive definition of global leadership effectiveness. Second, we map its construct domain. Third, we review research findings at the individual, group, and organizational levels. Finally, we integrate extant insights and offer suggestions for future research, organized within the typology of the content domain along the identified dimensions of global leadership effectiveness. Together, our goal is to build a foundation for future research examining the roles of leadership and the global context as antecedents of global leadership effectiveness.

The purpose of this paper is to investigate whether occupational social contexts differentiate the processing of changes in the employment relationship, as represented by the psychological contract. Specifically, this study investigates the impact of the psychological contract and justice, with negative affectivity (NA), on medical practitioners or administrative staff in healthcare.

Samples of 54 medical practitioners (30 percent) and 122 administrative staff (59 percent), primarily providing public services, responded to a cross-sectional survey. Data were analyzed using multiple regression analyses.

Among medical staff, psychological contract obligations were associated with lower commitment and psychological distress, whereas fulfillment was associated with higher commitment and job satisfaction, yet higher distress. Distributive justice was associated with lower distress, and NA was associated with higher distress. Among administration staff, fulfillment was associated with commitment and job satisfaction, and NA was associated with lower job satisfaction and higher distress. Essentially, reforms are likely to have more impact on less powerful occupations.

Psychological contract fulfillment is a key predictor of hospital employees’ commitment and satisfaction, placing clinicians, particularly, under pressure. To retain employees, hospitals must keep their promises. Further, occupational power activates the role of obligations, with practitioners having negative outcomes and holding the organization to account until the obligations are fulfilled.

This study highlights the differential nature of the psychological contract among healthcare employee groups, with differences depending on occupational power.

The purpose of this study is to examine the impact of the (in)congruence between team leader self-evaluation and follower evaluation about the leader's transformation leadership (TL) on team performance, as well as the conditions under which the impact can be strengthened or weakened.

This study adopts a survey method to collect data from matched sales team leaders and sales team members in 81 teams. A multi-level polynomial regression analysis was conducted.

Team performance was higher in teams with balanced or high TL than with balanced or low TL. Among the teams with incongruence, no difference was found between leader underestimation and leader overestimation. TL congruence plays a moderating role in the relationship between team follower evaluation of TL and team performance, such that the relationship is stronger when team leader self-evaluation and follower evaluation are congruent than incongruent.

This study extends the authors' current understanding of TL literature by combining and contrasting the different perceptions of TL from both the leaders themselves and the followers towards leaders. The findings highlight the importance of congruence versus incongruence rather than just the high or low levels of follower TL evaluation. It provides a more complete understanding of the TL and team performance relationship than the traditional view that promotes a linear relationship between TL and performance.

The purpose of this study is to establish a modified accident causation model for highway construction accidents (ACM-HC) and describe the establishment process of the ACM-HC.

Based on the 2–4 Model, a framework of the ACM-HC was constructed, and the accident causal factors (CF) were extracted from four aspects of human, material, environment and management. In addition, association rule mining (ARM) was introduced to analyze accident investigation reports to obtain the interrelationships between the factors. Based on the framework, factors and ARM results, the ACM-HC was established. Finally, the ACM-HC was verified with a tunnel collapse accident.

Both the external and internal causes of contractor cause accidents. The flaws of safety management of other stakeholders are external causes. In terms of the internal causes, there are four stages: direct causes, indirect causes, radical causes and root causes. More specifically, the direct causes refer to the unsafe acts and the unsafe conditions; ineffective safety supervision and poor individual factors of frontline workers constitute the indirect causes; the radical causes lie in the flaws of construction procedures and technical schemes; the root causes are related to the poor individual factors of decision makers and managers.

The ACM-HC expresses the causes, sequence and mechanism of highway construction accidents in a visual way. In addition, this study describes a process of using a qualitative–quantitative hybrid approach to establish a modified ACM, which provides a different perspective for the establishment of an ACM.

The purpose of this study is to focus on numerical simulation investigations of deformation analysis of asymmetric break-down rolling of a hollow steel, which seriously affects the service life of the final product.

The 3D rigid-plastic thermo-mechanical coupled finite element method (FEM) for a large strain was used to analyze metal deformation in the deformation zone for asymmetric rolling with different roller diameters.

The distribution of stress, strain and dimension accuracy for different diameters was obtained. The results show that the additional shear strain which is different from the normal compression deformation is generated in an asymmetric rolling process. The higher the ratio between upper and lower diameters, the greater the additional shear deformation.

Asymmetric rolling is an important factor affecting the dimensional accuracy of the hollow steel. This study can provide a theoretical basis for developing a reasonable rolling process of the hollow steel.

The purpose of this paper is to investigate the effect of Na₂SiO₃ concentration on the microstructure and corrosive properties of microarc oxidation (MAO) coating on Al-Mg-Sc alloy and explore microstructure evolution rule of Al substrate in the contact area.

The Na₂SiO₃ concentration in electrolytes influenced the microstructure and corrosion behavior of MAO coatings. Instantaneous high temperature and high pressure due to microarc discharge caused annealing treatment. The corrosive behavior of the MAO coating was featured with polarization curves and electrochemical impedance spectrum in 3.5 Wt.% NaCl solution.

The substrate in the contact area existed the instantaneous annealing treatment, which caused obvious recrystallization. The coating prepared in electrolyte containing 7 g/L Na₂SiO₃ exhibited the highest protective properties in 3.5 Wt.% NaCl solution.

MAO treatment could increase the corrosion resistance by producing a protective layer on the Al-Mg-Sc alloy surface at a suitable Na₂SiO₃ concentration and microstructure evolution rule of Al substrate in the contact area was obtained.

Job satisfaction, mental health and organisational commitment are important for clinician retention. Psychological contracts, organisational justice and negative affectivity (NA) have been linked with these outcomes but there is limited research examining these concepts in combination, particularly for clinicians. The aim of this paper is to examine the relationships between psychological contract breach, organisational justice and NA, on the outcomes of organisational commitment, psychological distress and job satisfaction, in a medical context.

Surveys were distributed to Australian hospital clinicians through their internal mail and 81 completed surveys were returned (response rate=24 per cent).

Multiple regression analyses revealed that organisational commitment was related to NA, psychological contract obligation and the interaction between psychological contract breach and distributive justice. Psychological distress was related to NA and procedural justice. Job satisfaction was related to the interaction between psychological contract breach and informational justice, however, the overall model for job satisfaction was not significant.

By implementing innovative social exchange processes, healthcare organisations can ensure distributive justice is maintained in the culture in event of contract breach, and by so doing build safety mechanisms into sustaining commitment from clinicians.

This paper contributes to the literature on clinical governance in managing the psychological contract to sustain commitment from clinical staff. The findings provide new insights into the factors effecting employee outcomes for clinicians.