A method of generating and measuring static small forces at the micro-Newton level is proposed. In the method, the down-slope component of gravity acting on a mass on an inclined plane is used as a static force. To realize a linear motion of the mass with a small friction, an aerostatic linear bearing is used. The forces acting on the mass, such as the down-slope component of gravity and the dy...

The partition function of 2+1 Chern-Simons Witten topological gravity has an attractive physical interpretation in terms of the unbroken and broken phases of gravity. We make this physical interpretation manifest by using the background field method. Supported by the Royal Society England.

Two hypothetical fields in an artificial space – the affinity and the gravity – form the basis for clustering and classification. The gravity can be used for a clustering method. The classifier has the task to classify new objects with the aid of the affinity. This paper describes the field model and its usage for the classification techniques.

This paper proposed feature extraction method based on centre of gravity for offline signature. Similar to other biometric measures, signatures have inherent variability and so pose a difficult recognition problem. Signature probably is one of the oldest biometric recognition methods, with high legal acceptance Signature has been a distinguishing feature for person identification through ages. ...

This paper presents a new interpretation of the geometry of Triassic alignment of J. Sidi Mahdi –J. Zitoun in Medjerda Valley Plain (Northern Tunisia) based on detailed analysis of gravity and seismic reflection data. The main results of gravity analysis do not show a distinguish gravity anomaly over Triassic evaporites bodies. The positive gravity anomaly seems to be related to the entire stru...

Abstract—Accurately positioning detection of concealed deposits or ore-bodies is one of the difficult problems in mineral exploration field. Theory calculation and exploration practices for tunnel gravity indicate that 3D high-precision Tunnel Gravity Exploration Method (TGEM) can find concealed high-density three-dimensional ore-bodies in the depth. The ore-finding breakthroughs at the depth o...

A universal symmetry algebra organizing the gravitational phase space has been recently found. It corresponds to subset of diffeomorphisms that become physical at corners -- codimension-$2$ surfaces supporting Noether charges. applies both finite distance and asymptotic corners. In this paper, we study its representations, via coadjoint orbit method. We show generic orbits split into sub-orbits...