This paper describes ongoing research on vision based mobile robot navigation for wheel chairs. After a guided tour through a natural environment while taking images at regular time intervals, natural landmarks are extracted to automatically build a topological map. Later on this map can be used for place recognition and navigation. We use visual servoing on the landmarks to steer the robot. In...

This paper presents an approach to identify hand gestures with muscle activity separated from electromyogram (EMG) using Back Propagation analysis with the goal of using hand gestures for humancomputer interaction. While there are a number of previous reported works where EMG has been used to identify movement, the limitation of these works is that the systems are suitable for gross actions and...

How far we think about the people who are handicap by birth, old age people and some accidental cases. All the wheelchairs in the market till market till now are not useful for the people whose limbs are not working. They are not involved in the national progress and not only this they are burden for others. The people who have his kind of disability are not able to perform their everyday actio...

This paper describes the design of a smart, motorized, voice controlled wheelchair using embedded system. Proposed design supports voice activation system for physically disabled persons incorporating manual operation. Arduino microcontroller and speaker dependent voice recognition processor have been used to support the navigation of the wheel chair. The direction and velocity of the chair are...

In this thesis, I present the design and motion-capture analysis of two previously well-studied dynamic-walking machines, the rimless wheel and the compass gait robot. These robots were the basis for my undergraduate research at the Computer Science/Artificial Intelligence Laboratory (CSAIL) at the Massachusetts Institute of Technology. The rimless wheel is a real-world physical realization bui...

There is ongoing debate about the quality of mathematics education at post-primary level. Research suggests that, while the capacity to use mathematics constructively is fundamental to the economies of the future, many graduates of the secondary-school system have a fragmented and de-contextualised view of the subject, leading to issues with engagement and motivation. In an attempt to address s...

In analysing a well-known hash-coding method, Knuth gave an exact expression for the average number of rejections encountered by players of a variant of musical chairs. We study a variant more closely related to musical chairs itself and deduce the same expression by a purely combinatorial approach. In an analysis of the average time to insert an item when using openaddress hash-coding, Knuth [...

RATIONALE Laparoscopic nephrectomy tends to become the new gold standard surgical technique in a selected population (non-functioning kidney, localised renal cell carcinoma). Day surgery is a popular pathway of care and, procedures of ever-increasing complexity are being considered. OBJECTIVE The aim of the study was to report the postoperative complications of day case laparoscopic nephrecto...