abstract the present study aimed at discovering the practices and strategies autonomous efl learners pursue in their endeavor to master english. it thus set out in the iranian context, with 60 efl learners, both autonomous and non-autonomous, as participants. the gathered data through a questionnaire and an interview were subjected to content and descriptive analysis. the results showed that bo...

decentralized control strategies are popular candidates in microgrids control because of their reliability and performance. conventionally, droop control (as a main decentralized strategy) is been utilized in order to prevent permanent droop of voltage and frequency after change in loads and also to share generated power between distributed generation units. in this paper, a new droop control s...

This paper addresses four questions concerning control of attention: how to direct attention to novel or ‘interesting’ events in the world, how to separate novel or interesting information from everything else, how to perform this segmentation of the world at multiple levels, how to develop perceptual machinery capable of this. To all four questions we provide answers arising from work in our W...

This paper presents a simulator that is being developed to study the performance of certain types of vehicle navigation. The performance metric looks at a likelihood of accomplishing a task and the cost of the strategy – measuring both robustness and efficiency. We present results involving only autonomous control strategies, yet the simulator will be used to compare human performance in comple...

In this paper, an autonomous hovering control method of multicopter using only Web camera is proposed. Recently, various control method of an autonomous flight for multicopter are proposed. But, in the previous proposed methods, a motion capture system (i. e., OptiTrack) and laser range finder are often used to measure the position and posture of multicopter. To achieve an autonomous flight con...

The autonomous wheeled mobile robots are very interesting subject both in scientific research and practical applications. The article deals with the fuzzy control of autonomous wheeled mobile robotic platform motion in an unstructured environment with obstacles. The simulation results show the effectiveness and the validity of the obstacle avoidance behaviour in unstructured environments and th...

This paper describes the autonomous navigation and control of an undersea vehicle using a vehicle control architecture based on the Distributed Architecture for Mobile Navigation and a terrain-aided navigation technique based on simultaneous localisation and map building. Development of the low-speed platform models for vehicle control and the theoretical and practical details of mapping and po...

The operation of an autonomous vehicle in an unknown, dynamic environment is a very complex problem, especially when the vehicle is required to use its full maneuvering capabilities, and to react in real time to changes in the operational environment. A possible approach to reduce the computational complexity of the motion planning problem for a nonlinear, high dimensional system, is based on a...

The ObjectAgent system is being developed to create a robust software architecture for autonomous control of complex systems. Agents are used to implement all of the software functionality and communicate through simplified natural language messages. These agents have a set of basic survival skills that monitor for internal software faults, providing low-level fault detection and recovery. High...