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The primitive variable finite element formulation is used in a straightforward manner to solve for two turbulent pipe flows. The solution is based on the use of the Nikuradse—van Driest mixing‐length formula but no special wall element is employed. The finite element solutions are compared with experimental results.

This article analyses China’s attempts at economic revival, which, starting with the Foreign Investment Law, were under way before COVID-19 but which were given extra impetus by the onset of the pandemic.

The thought is that the Foreign Investment Law lacks detail, so this article looks at the three ideas with which the State Council is seeking to underpin it: key Industries, promoting investment and equal treatment. It also considers Shanghai’s experience as the first major municipality to implement the State Council’s guidance.

China is committed to more transparency and to opening more of its economy to foreign investors, even if it will continue to be selective about which industries it wishes to encourage. The central government wants other regional and local jurisdictions to follow Shanghai’s lead and implement its guidance, as well as bring forward more measures to make the environment more favorable for foreign investment. At the same time, the article notes that China faces some hostility from other nations and groupings, such as the US, UK and the EU, from which it would expect to receive investment.

Investors can expect more specific reforms in the different areas of the economy that China wishes to develop while recognizing that it needs foreign expertise to do so.

Insight from experienced corporate lawyers who are resident in China and have first-hand experience of the measures aimed at economic recovery.

The measurement of geomagnetic field can provide a reliable and economical basis for attitude and orbit information of low earth orbiting satellite. Because the earth's magnetic field is a function of position, and its measurement on the orbit are fully observable, orbit estimation can be obtained using extend Kalman filter (EKF) algorithm. With the assistant of angle velocity information from gyro measurement, attitude estimation can also be obtained. At the same time, gyro drift rate estimation is a part of the filter output. Although orbit and attitude determination are independent of each other, the filter can give the orbit and attitude estimation at the same time. The results of the numerical test show that a signal EKF can estimate both orbit and attitude by using magnetometer and gyro measurement only. The accuracy, usually is sufficient for low earth orbiting satellites.

The purpose of this paper is to study a method to optimize the arrangement of the devices on a smart assembly workbench, which help to reduce fatigue and improve efficiency for the worker.

The optimization priority is studied based on the users’ decisions, a mathematical model of the layout optimization is established from ergonomic perspective and an improved algorithm is adopted to solve the built the mathematical model.

Ergonomic software Jack is chosen to simulate the four layout schemes obtained. Through comparative analysis of the simulation results, it is proven that the optimal solution can be obtained using the improved algorithm.

The mathematical model built on observation comfort, operation comfort and device accessibility, as well as the improved algorithm in this paper, has some reference values for the layout design of smart assembly workbench.

The aggregation of information from a group of decision experts for developing collective opinion is the important question in practice. The purpose of this paper is to provide a group decision-making method via ordered weighted aggregation (OWA) operator and grey incidence analysis.

In this study, OWA operator provides aggregation of attribute values to form an overall decision for each decision expert, and grey incidence model provides aggregation of decision experts’ evaluations to form overall score for each alternative. The example illustrates the procedure and practicability of the proposed model.

A new thought for multiple attribute group decision-making problems is given. The proposed method produces an overall desirability score for each alternative.

This is to obtain a more comprehensive and realistic solution to the given group decision-making problem. The proposed analysis method of group decision-making problems reveals vitality of grey systems theory.

This paper combines OWA operator and grey incidence analysis to obtain a novel and effective method for group decision making. It is suitable for group decision-making problems in which the attribute weights are completely unknown, expert weights are completely unknown.

The purpose of this paper is to illustrate the dependence of flexible-electronics properties on the metal conductor parameters, such as the width, thickness, connection length and inner meander radius of the conductor.

This paper uses the finite element method to simulate flexible electronics with a copper conductor attached to polyimide substrate under tension, by using different parameters of the conductor.

By careful variation of copper conductor parameters, the authors obtain an optimized structure that can undergo large deformations with small stress concentrations, lending convenience for packaging.

The authors have developed an optimization method for selecting metal conductor parameters in flexible electronics.

Wang has focused on the relationship between Das Kapital and the political economy in the broad sense. Numerous ideas covering the political economy in the broad sense are involved in the overall structure of Das Kapital, methodology of historical materialism and analyses of the historical fate of capitalist system. The paper aims to discuss these issues.

In broad outline, the Asiatic, ancient, feudal and modern bourgeois modes of production may be designated as epochs, marking progress in the economic development of society (Wang, 2007b). Historical materialism provides a new, scientific and objective explanation for understanding the dialectical development laws of society. It is crucial for constructing the theoretical system of a political economy in the broad sense. It could be said that it is the key to solving the puzzle of the historical course of social development.

Today, economic relations between the world’s top two economies have merged with each other. How can two countries with different systems trade with each other so well? These questions can no longer be answered with traditionally narrow political economic theory. The authors have to seek these answers from the perspective of a political economy in the broad sense.

Numerous ideas covering the political economy in the broad sense are involved in the overall structure of Das Kapital, methodology of historical materialism, and analyses of the historical fate of capitalist system.

According to the basic principle of grey system and third axiom buffer operator, aiming at the problem of disturbance, some new weakening buffer operators are established by analytical skills in the process of prediction. The problem of some contradictions between quantitative analysis and qualitative analysis existing in pretreatment for vibration data sequences is resolved effectively. An example shows that the kind of new weakening buffer operators increase the forecast precision of data forecast model remarkably. The aim of this paper is to attempt to resolve the problem of some contradictions between quantitative analysis and qualitative analysis existing in pretreatment for vibration data sequences.

In view of the problem of some contradictions between quantitative analysis and qualitative analysis existing in pretreatment for vibration data sequences, according to the basic principle of grey system and third axiom buffer operator, some new weakening buffer operators are established by analytical skills. As an example, the kind of new weakening buffer operators can increase the forecast precision of data forecast model remarkably.

The results show that the new weakening buffer operators can increase the forecast precision of data forecast model remarkably.

The new weakening buffer operators exposed in the paper can be used to resolve the problem of some contradictions between quantitative analysis and qualitative analysis existing in pretreatment for vibration data sequences and increase the forecast precision of data forecast model remarkably.

The paper succeeds in increasing the forecast precision of data forecast model remarkably.

Emotions are everywhere and, as multiple scholars have argued, can be considered a fundamental part of the human experience. Individuals are expected to behave in socially appropriate ways in a variety of public and private social situations, which often involve managing one's emotions. The management and regulation of emotions are also key components of effective school leadership. This chapter unpacks the emotional aspects of school leadership by exploring how the management of emotions is fundamental to the success of headmasters, principals, vice-principals, and other school-level leaders. I also provide the rationale for using the term ‘school-level leaders’ and call for emotional authenticity in educational leadership. Then I outline several benefits an increased scholarly and practical focus on the emotional aspects of school-level leadership offers for teachers and other school staff, school-level leaders themselves, and the students they serve on a daily basis. I also provide a short description of the methodology used for the participant quotes used to add richness and contextualize key themes explored in Chapters 4 and 5. The chapter concludes with an outline of how the rest of this book is organized and offers additional insight into the topics explored in the forthcoming chapters.

The large role that emotions play in the work lives of school-level leaders is absent from much of the research exploring what they do on a daily basis. This chapter discusses future directions for research surrounding the emotional aspects of school-level leadership and how this research can influence practice in meaningful ways. For example, it may be beneficial for future research to focus on principals who are struggling to manage their emotions. This would allow researchers to identify factors or practices associated with school-level leaders who are less able to manage their emotions in a positive manner and provide supports. Further, more large-scale research surrounding school-level leadership is needed to better understand how the ability to manage emotions intersects with other challenges in contemporary principals' work. Research of this nature would also provide additional avenues of support for current leaders. Future directions for practice include an emphasis on changing the culture so that school-level leaders who are struggling feel empowered to reach out beyond their immediate colleagues for supports. Without a renewed appreciation for the emotional aspects of their work, principals, vice-principals and other school-level leaders will be unable to maximise their impact on student outcomes.