This paper explores the nature of climate change education-related policy influence in England at a time when public consciousness about need to accelerate action was heightened, and as 2018 strikes gathered momentum around world. Informed by Foucault's concept ‘governmentalities’, using data generated through 24 exploratory interviews reflexive thematic analysis, we examine extent which influe...

Computer simulation has been used to investigate several aspects of locomotion in salamanders. Here we introduce a three-dimensional forward dynamics mechanical model of a salamander, with physically realistic weight and size parameters. Movements of the four limbs and of the trunk and tail are generated by sets of linearly modeled skeletal muscles. In this study, activation of these muscles we...

A novel attitude stabilization control scheme is presented for rigid spacecraft. As a stepping stone, a first-order passivity filter is proposed to generate a velocity-related signal from attitude measurements. Then, a velocity-free attitude stabilization controller is synthesized by using a hyperbolic tangent function. It is shown that the controller render the equilibrium points in the closed...

Controllers are necessary for physically-based synthesis of character animation. However, creating controllers requires either manual tuning or expensive computer optimization. We introduce linear Bellman combination as a method for reusing existing controllers. Given a set of controllers for related tasks, this combination creates a controller that performs a new task. It naturally weights the...

In this paper, a bilaterally decoupled neural controller was used to achieve stable locomotion in a 6 DOF biped robot with 5 links, implemented in a virtual physics-based simulation environment. The neural controller consists of an independent neural rhythm generator for each leg. The rhythm generator is a recurrent neural network, whose weights are optimized by a genetic algorithm and are iden...

When balancing, a humanoid robot can be easily subjected to unexpected disturbances like external pushes. In these circumstances, reactive movements as steps become a necessary requirement in order to avoid potentially harmful falling states. In this paper we conceive a Model Predictive Controller which determines a desired set of contact wrenches by predicting the future evolution of the robot...

Controlling complex humanoid robots can involve a lot of competing paradigms that can be simplified by breaking down the control process into a hierarchy of tasks. For this project, we implemented one such controller, as introduced in [1], that uses a user-defined hierarchy of tasks to perform a required task. We tested this on tasks such as squatting and balancing on flat ground under disturba...

This paper presents an adaptive constraint control approach for Electronic Throttle Control System (ETCS) with asymmetric throttle angle constraints. The method, which is based on barrier Lyapunov function (BLF), designed not only to track the desired but also guarantee no violation An ETC mathematic model complex non-linear system considered and (ABLF) introduced into design of controller. Bas...