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In the present study, input-output relationships of metal inert gas welding process have modeled using radial basis function neural networks. As the performance of a neural network depends on its structure and parameters, some approaches have been developed to optimize them simultaneously. The performances of the developed approaches have been compared among them on some test cases. It has been observed...
An attempt has been made to develop a fuzzy-logic (FL)-based screening and prediction tool for adult psychoses, a group of look-alike mental illnesses showing varying cause-effect relations among the patients. Gathering information of psychiatric patients is a big hurdle for some ethical reasons. Moreover, due to the gross individualization of the medical logic, doctors' opinions regarding the preliminary...
During locomotion, one of various important tasks, a biped robot has to perform is the identification of 3D environment. The present work addresses the problem of offline 3D reconstruction of the environment using a stereo-vision system. The developed stereo-vision system works based on the concept of an epipolar geometry. The mathematical model that interpolates 3D position of a point with the help...
Dynamically balanced staircase ascending gait generation problem of a 11-DOF biped robot has been solved utilizing an analytical approach. The swing foot and hip joint are assumed to follow cubic polynomial and straight line trajectories, respectively. The lower limbs' gaits have been generated based on the concept of inverse kinematics and the trunk motion is decided based on static balance. The...
In fusion welding process, a monolithic structure is obtained at the weldment between the two pieces to be joined. This monolithic structure called the welded zone has got different shapes, which depend upon the type of welding process and its parameters. The strength of the welded structure depends upon the extent to which the metal penetrates between the joint and the volume of the parent metal...
We present an approach, which uses the sonar data from a commercial off the shelf forward Looking Sonar ( FLS ) sensor used in AUVs. We consider a single beam 2D sonar (namely Micron sonar from Tritech International Ltd.) and the data recorded is in SeaNet Protocol. The data represented under SeaNet logs for the sonar are interpreted in real time for distance computation of the obstacles present in...
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