5 research outputs found

    Relationship analysis between greenwashing and environmental performance

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    This paper fills the gap in the study of the impact of Chinese companies' environmental performance (EP) on greenwashing based on the listed companies in China from 2010 to 2018. The relationship between EP and greenwashing is analyzed based on legitimacy theory and signal theory. From the empirical analysis, it is found that there exists a negative correlation between EP and greenwashing which supports the signal theory. Based on resource-based theory analysis, the impacts of environmental subsidies and political connections on the relationship between environmental performance and greenwashing are also analyzed. EP of enterprises receiving environmental protection subsidy has a greater inhibition effect on greenwashing. The negative effect of EP on greenwashing of state-owned enterprises is bigger than that of non-state-owned enterprises. This study can provide reference for government departments in deepening the reform of government environmental subsidies and environmental governance of state-owned enterprises

    Valkyrie-Design and Development of Gaits for Quadruped Robot Using Particle Swarm Optimization

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    Over the past decades, developments and scientific breakthroughs in the field of robotics have shown the replacement of wheeled robots with legged robots, which are often inspired by the biological characteristics of legged animals. Many industries and urban‐based applications promote quadruped robots because of their dexterous ability to efficiently handle multiple tasks in the work-ing environment. Motivated from the recent works in the field of quadruped robots, this research aims to develop and investigate gaits for a 2 DoF mammal‐inspired quadruped robot that incorpo-rates 4 hip and 4 knee servo motors as its locomotion element. Forward and inverse kinematic techniques are used to determine the joint angle required for the locomotion and stability calculation are presented to determine the center of mass/center of gravity of the robot. Three types of gaits such as walk, trot, and pace are developed while keeping the center of mass inside the support polygon using a closed‐loop control system. To minimize errors and improve the performance of the robot due to its non‐linearity, a meta‐heuristic algorithm has been developed and addressed in this work. The fitness function is derived based on the Euclidean distance between the target and robot’s current position and kinematic equations are used to obtain the relation between joints and coordinates. Based on the literature, particle swarm optimization (PSO) was found to be a promising algorithm for this problem and is developed using Python’s ‘Pyswarms’ package. Experimental studies are carried out quantitatively to determine the convergence characteristics of the control algorithm and to investigate the distance traveled by the robot for different target positions and gaits. Comparison between experimental and theoretical results prove the efficiency of the pro-posed algorithm and stability of the robot during various gait movements

    Seven recommendations for scientists, universities, and funders to embrace interdisciplinarity: Practical guidelines to enabling interdisciplinarity

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    Interdisciplinary research is vital for innovation. Here, we consider interdisciplinarity to mean any form of collaboration between researchers that integrates information, data, techniques, concepts, theories and/or perspectives from two or more disciplines to advance fundamental understanding or solve problems that are beyond the scope of a single discipline (Choi and Pak, 2006; National Academy of Sciences et al, 2005). Increasingly, university leaders, funders and politicians have recognised that the most pressing problems facing the world are too complex to be tackled from a single-disciplinary perspective. Despite this significance and general recognition, a recent report suggests that a high share of academic institutions only pay “lip service” to interdisciplinary research and fail to recognise staff for cross-disciplinary working. Crucially, it states that global research hubs, that is, the USA, UK and Australia, are in reality much less focused on interdisciplinarity versus their Asian counterparts as their research continues to orient itself along disciplinary boundaries and thinking. [Opening paragraph]</p
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