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Aero-engine casings commonly use composite cylindrical shell structures with excellent properties such as corrosion resistance and fatigue resistance. Still, their vibration behavior is relatively complex and may cause fatigue vibration damage, so it is essential to analyze the vibration characteristics of composite cylindrical shells. The purpose of this paper is to analyze the vibration characteristics of multilayer composite cylindrical shells subjected to external pressures and having different interlayer thickness ratios and provide some theoretical basis for the fatigue damage prediction of cylindrical shell casing to ensure the safety and stability of the engine during flight.

Firstly, the vibration differential equation with external pressure is established based on Soedel theory considering nonlinear effects, while four symmetric boundary conditions are chosen to constrain the cylindrical shell. Then the Rayleigh–Ritz method, which is more efficient and accurate in calculating large structural systems, is applied to solve the problem, and the theoretical model of three-layer cylindrical shell under external pressure is established. The accuracy of the model is verified by comparing the data with the specialized literature. Subsequently, the effects of different external pressures and different thickness-to-diameter ratios, different length-to-diameter ratios and different interlayer thickness percentages on the natural frequency of multilayer composite cylindrical shells were investigated by control variable analysis.

The conclusions obtained show that the external pressure increases the natural frequency of the cylindrical shell and that the frequency characteristics of the cylindrical shell vary for different boundary conditions. The effect of length-to-diameter ratio, thickness-to-diameter ratio and the percentage of the thickness of the intermediate layer on the natural frequency of the cylindrical shell are significantly increased under external pressure. Because the presence of external pressure increases the frequency of the cylindrical shell by about 70%, it has almost no effect on the frequency at the minimum number of circumferential waves, and the effect on the frequency at the maximum number of circumferential waves is reduced to about 50%. The frequencies in the SL-SL boundary condition are all in perfect agreement with the S-S boundary condition under the influence of different influencing factors.

In this paper, the effect of external pressure and the natural properties of the cylindrical shell under external pressure on the cylindrical shell’s frequency is considered, emphasizing the effect of different layer thickness ratios on the frequency. This paper aims to summarize the changing law between the natural frequency of the cylindrical shell itself and different design parameters during the flight pressure process. Reliable theoretical predictions are provided for analyzing the vibrational behavior of shells subjected to external pressures in aerospace, as well as a database for the practical production of cylindrical shells.

The purpose of this study is to examine Chinese international students' narrative stories, experiences and racial dynamics while studying in the United States to argue that Chinese international students navigate multi-dimensional transitions and experiences in different stages. This study uses an AsianCrit lens to address the gap in existing research focusing on Chinese international students' narratives and experiences.

Narrative inquiry with a social constructivist paradigm was used to provide an in-depth exploration of Chinese international students' navigation and negotiation in multi-dimensional experiences. Three phases of semi-structured interviews and journal entries were utilized to examine participants' experiences and struggles while studying in the United States. Descriptive coding, deductive coding and restorying were used to analyze and feather narrators' voices and stories for interpretation.

The findings in this qualitative study demonstrate that Chinese international students have unique backgrounds, and their backgrounds shape their multi-dimensional transitions and experiences in the present and the future. The findings address students' nuanced experiences in academic transitions and non-academic transitions with an AsianCrit lens.

The study calls for higher education institutions to promote intercultural and international training for faculty and staff to better understand and support the unique needs of international students.

Using Multiple and Multi-dimensional Transitions theory with an AsianCrit lens helps make sense of the intersection of international student status, geopolitical tensions, racial dynamics and international student experiences.

The purpose of this paper is to elaborate upon the notion of counter accounting, to assess the potentiality of online reports for counter accounting and hence for counter accounting's emancipatory potential as online reporting, to assess the extent to which this potential is being realised and to suggest ways forward from a critical perspective.

There are several components to a critical interpretive analysis: critical evaluative analysis, informed to some extent by prior literature in diverse fields; web survey; questionnaire survey; case study.

Web‐based counter accounting may be understood as having emancipatory potential, some of which is being realised in practice. Not all the positive potential is, however, being realised as one might hope: things that might properly be done are not always being done. And there are threats to progress in the future.

Clarification of a notion of counter accounting incorporating the activity of groups such as pressure groups and NGOs; rare study into practices and opinions in this context through a critical evaluative lens.

The purpose of this paper is to develop an economic model, which could determine the acceptance sampling plan that minimizes the quality cost for batch manufacturing.

The authors propose a variable sampling plan based on one-sided capability indices for dealing with the quality cost requirement.

The total quality cost is much more sensitive to process capability indices and inspected cost than internal and external failure costs.

The experimental data were randomly generated instead of real world ones.

The proposed model is specifically designed for manufacturing industries with high sampling cost.

The one-sided capability indices were utilized for the first time to be suitable for the purpose.

The purpose of this paper is to effectively deal with querying of classification with membership.

The authors propose a scheme comprising a layer of Bloom filter for membership checking and a second layer based on neural network for dealing with the classification requirement.

Not only could false positives be dramatically decreased, but also classification could be achieved with the proposed scheme.

The experimental data were randomly generated instead of real‐world ones.

It is difficult to implement this scheme in a real‐world environment, such as the internet. Second, the neural network requires time to converge to a satisfactory level.

Internet ethic might be compromised by hackers once they find a way around the filtering mechanism.

The neural network was moditified and utilized for the first time to be suitable for our purpose. Second, the two‐layer design shows effectiveness.

The purpose of this paper is to present a vision for the future development of Kybernetes under a new editorship.

The new Editors are introduced, the strengths and history of the journal reviewed, and plans for its future development described.

The future of Kybernetes will build on its long and distinguished heritage, noting especially the strengths of interdisplinarity, internationality, and strong links with major cybernetic societies across the world. While maintaining these strengths, the new Editors will seek to develop further the conversations between diverse fields contributing to the journal and to bring a new emphasis to the interdisciplinary study of information, to studies of the social implications of cybernetics and related fields, and to profiles of thinkers in cybernetics, systems and management science.

This is only the second time that there has been a change of editor in the more than 40 years that Kybernetes has been published. The journal (and the whole field of cybernetics and systems) owes the past editors a great debt of thanks for their outstanding work, but the time has come for change. This paper starts to identify new directions under the new Editors.

The early stages of projects are often characterised by ambiguity arising from differences in stakeholder views regarding project rationale and objectives. The purpose of this paper is to present a viewpoint on how to build a shared understanding of project goals and thus reach a shared commitment to achieving them. One of the ways to achieve shared understanding is through open dialogue, free from political and other constraints. The authors call an environment that fosters such dialogue a holding environment. The main aim is to illustrate, via a case study: how an alliance‐based approach to projects can foster a holding environment; and how argument visualisation tools such as IBIS (Issue‐Based Information System) can be used to clarify different points of view and options within such an environment.

Following a discussion of theoretical background and literature review, an alliancing case study is used to illustrate the development of a holding environment and demonstrate the utility of IBIS in the creation of such an environment.

It is seen that an alliance‐based approach to projects can provide the foundation for a holding environment. IBIS is seen to facilitate the building of shared understanding by making arguments explicit and capturing decision rationale.

The paper outlines a practical framework for improving the quality of dialogue and achieving stakeholder commitment on projects.

Achieving shared understanding and commitment to action is difficult, particularly in the early stages of projects. The paper outlines the conditions and techniques needed to facilitate this via a non‐trivial case study.

This paper aims to improve the anti-interference ability of the airborne radar stabilization platform, especially the ability to suppress continuous disturbance under complex air conditions to ensure the clarity and stability of airborne radar imaging.

This paper proposes a new active disturbance rejection control (ADRC) strategy based on the cascade extended state observer (ESO) for airborne radar stabilization platform, which adopts two first-order ESOs to estimate the angular velocity value and the angular position value of the stabilized platform. Then makes the error signal which subtracts the estimated value of ESO from the output signal of the tracking-differentiator as the input signal of the nonlinear state error feedback (NLSEF), and according to the output signal of the NLSEF and the value which dynamically compensated the total disturbances estimated by the two ESO to produce the final control signal.

The simulation results show that, compared with the classical ADRC, the ADRC based on the cascade ESO not only estimates the unknown disturbance more accurately but also improves the delay of disturbance observation effectively due to the increase of the order of the observer. In addition, compared with the classical PID control and the classical ADRC, it has made great progress in response performance and anti-interference ability, especially in the complex air conditions.

The originality of the paper is the adoption of a new ADRC control strategy based on the cascade ESO to ameliorate the anti-interference ability of the airborne radar stabilization platform, especially the ability to suppress continuous interference under complex air conditions.

The growing prominence of knowledge workers in contemporary organisations has led to a considerable amount of research into their role and activities, however, despite this growing interest, there remains a lack of clarity regarding the relationship of knowledge workers to management. This paper aims to respond by investigating the features of knowledge work that impose barriers to traditional managerial control methods and exploring the extent to which alternative approaches to influence are available to knowledge work managers, and the circumstances under which these different approaches are indicated.

The paper utilised agency theory to investigate the implications of knowledge asymmetry in principal‐knowledge worker exchanges, and argues against the utility of models of control based on principles of scientific management on which agency models are typically based, towards models of control based on reciprocity and commitment.

The paper has two main outputs. First, it argues that situations in which knowledge‐based specialists are hired to perform tasks requiring expertise can be viewed as principal‐agent exchanges (Mills) and are therefore open to analysis through an agency theory lens. The second endeavour is to discuss the implications of knowledge asymmetry in principal‐knowledge worker relationships for managerial control and influence, and posit alternative modes of managerial control based on normative influence and valiant rewards. Further, it develops propositions relating to the factors likely to moderate the utility of each managerial influence strategy.

By undertaking this investigation, the paper responds to calls by Frenkel et al. to understand process and dynamics of control in managing knowledge workers. It moves away from models of control based on principles of scientific management on which agency models are typically based, towards models of control based on reciprocity and commitment. It develops testable propositions regarding specific sources of influence in knowledge work and the circumstances under which the employment of these influence strategies is indicated. This responds to calls by authors such as Tampoe; and Lord to develop a detailed understanding of the manner and extent to which influence strategies need to complement specific knowledge worker characteristics.

Although strategic scholars have made great effects to exploring the moderating roles of team interaction in explaining the effect of top management team (TMT) diversity, they have adopted seemingly conflicting theoretical perspectives to explain how it works. Drawing on ideas from the threat rigidity theory, the authors integrated these perspectives by proposing a contingency model in which the relationships between TMT diversity and adaptive firm performance depend on the matching between the internal context (i.e. overlapping team tenure) and external context (i.e. severity of threat).

This study sampled 579 Chinese A-share listed companies that have been severely affected by the COVID-19 pandemic, and multilevel linear regression analysis was used to test the hypothesis.

Results provided support for this hypothesis. Specifically, the interaction between TMT age/tenure diversity and overlapping team tenure is significant only when the severity of threat is high, while the interaction between TMT functional diversity and overlapping team tenure is significant only when the severity of threat is low.

The results of this study provide a comprehensive perspective to predict the performance impact of team diversity and contribute to diversity research and practice.