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This study aims to examine the impact of boardroom diversity on the financial stability of Chinese financial listed firms. Boardroom diversity is quantified in the following aspects: relation-oriented diversity and task-oriented diversity.

Panel data on Chinese financial listed firms between 1998 and 2017 are used in this study. Panel regression is used to analyze the firm data for fixed effects and robust standard errors.

Task-oriented diversity of the board increases financial stability. Regarding the impact of boardroom diversity on firm risk, the results reveal that task-oriented diversity of the board reduces firm risk, which supports the predictions of this research. Regarding the moderating effect of state ownership on the relationship between boardroom diversity (task- and relation-oriented diversity) and financial stability, the results show that state ownership enhances the positive impact of the board’s task-oriented diversity on financial stability.

Task-oriented diversity of the board enhances the financial stability of Chinese financial listed firms. As existing studies on bank boards in China are limited, the findings of this research can be used when crafting policy initiatives to enhance financial stability.

To the best of the authors’ knowledge, this study is the first to examine the effect of boardroom diversity, particularly task- and relation-oriented diversity, on financial stability. It provides empirical support that boardroom diversity positively affects the financial stability of Chinese financial listed firms. This research also offers empirical evidence that state ownership enhances the positive impact of the board’s task-oriented diversity on financial stability.

The purpose of this paper is to introduce a novel method to study the flutter coupling mechanism of the twin-fuselage aircraft, which is becoming a popular transportation vehicle recently.

A new method of flutter mode indicator is proposed based on the principle of work and power, which is realized through energy accumulation of generalized force work on generalized coordinates, based on which flutter coupling mechanism of the twin-fuselage aircraft is studied using ground vibration test and computational fluid dynamics/computational solid dynamics method.

Verification of the proposed flutter mode indicator is provided, by which the flutter mechanism of the twin fuselage is found as the horizontal tail’s torsion coupled with its bending effect and the “frequency drifting” phenomenon of twin-fuselage aircraft is explained logically, highlighting the proposed method in this paper.

This paper proposed a new method of flutter mode indicator, which has advantages in flutter modes indexes reliability, clear physical meaning and results normalization. This study found the flutter coupling mechanism of twin-fuselage aircraft, which has important guiding significance to the development of twin-fuselage aircraft.

The purpose of this study is to provide an in-depth understanding about the indoor-orbital electrical inspection robot, which is useful for motivating the further investigation on the inspection of electrical equipment. Currently, electric energy has a strong correlation with the economic development of the country. Intelligent substations play an important role in the transmission and distribution of the electricity; the maintenance of the substation has attracted intensive attention due to the requirement of reliability and safety. The indoor-orbital electrical inspection robot has increasingly become the main tool to realize the unmanned. Hence, a systematic review is conducted systematically reviewing the current technical status of the indoor-orbital electrical inspection robot and discuss the existed problems.

In this paper, the most essential achievements in the field of indoor-orbital electrical inspection robots were reported to present the current status, and the mechanical structures and key inspective technologies were also discussed.

Four recommendations are provided from the analyzed review, which have made constructive comments on the overall structural design, functionality, intelligence and future development direction of the indoor-orbital electrical inspection robot, respectively.

To the best of the authors’ knowledge, this is the first systematic review study on indoor-orbital electrical inspection robots; it fills the theoretical gap and proffers design ideas and directions for the development of the indoor-orbital electrical inspection robot.