Abstract: Disclosed is a method for characterising the evolution of a subsurface volume over time. The method comprises providing a first and second surveys of the reservoir with a first and second sets of seismic traces, performing an inversion to obtain estimates of changes having occurred between said first time and said second time in terms of at least one model parameter; wherein the subsurface volume is divided into regions according to a high order discrete classification attributed in accordance with the region's geologic characteristics, and said inversion is constrained per region of subsurface volume. The regions of subsurface volume may be geological layers.

Abstract: The disclosure relates to a three-phase electric motor that uses high magnetic energy permanent magnets and that has a low detent torque. The motor consists of a rotor with N pairs of poles and of a stator portion with teeth extending radially from an annular gear. The teeth have windings and the ends thereof comprise an arc of circle, the middle of which is located on a radius R1 and two sides defining an alpha angle, the vertex of which is located on a radius R2. The ratio R2/R1 is substantially equal to (1+/?0.26/N), and the alpha angle is between 110 and 135°.

Abstract: Disclosed is a method for characterising the evolution of a reservoir by determining a seismic wavelet which links observed seismic data to a sequence of reflectivities. The method comprises obtaining seismic data (200) representing seismic changes which have occurred between a first time and a second time, said seismic data comprising a plurality of seismic traces; and performing an optimisation operation simultaneously (230) on the seismic traces so as to optimise for said seismic wavelet. The optimisation operation may be performed without using known reflectivity data as an input.

Abstract: Disclosed is a method a seismic inversion for petrophysical properties of a subsurface volume comprising the steps of: obtaining petrophysical data relating to valid geological and/or dynamical scenarios, converting this data into valid combinations of elastic parameters; projecting the valid combinations of elastic parameters onto a spherical plot; and determining a penalty term from the distances between each cell of the spherical plot and the nearest valid combination of elastic parameters within the subsurface volume. Valid geological and/or dynamical scenarios comprise those which are petrophysically possible. The penalty term is then used to constrain an inversion minimising a cost function associated with seismic mismatch between two or more seismic surveys.

Abstract: Disclosed is a method of modelling a subsurface volume, and a corresponding computer program and apparatus. The method comprises defining a regular planar grid of regularly arranged locations in the two dimensions substantially parallel to the surface, and calculating a plurality of one dimensional arrays, each one dimensional array extending from a different one of the regularly arranged locations, in the direction from surface to subsurface. Each of the one dimensional arrays comprises a plurality of one dimensional cells, wherein the cells are delineated according to actual geological features of the subsurface volume.

Abstract: Disclosed is a process for characterising the evolution of a reservoir that comprises non-horizontal layers, by analyzing the changes of at least the seismic amplitudes of seismic reflections. The process comprises the steps of providing a base survey of the reservoir with a set of seismic traces at a first time and providing a monitor survey of the reservoir, taken at a second time, with a set of seismic traces associated to the same positions as in the base survey. The sets of seismic traces from the base and monitor surveys are then inverted to obtain an estimate of the changes having occurred in the time interval between base and monitor surveys, the inversion being performed using seismic traces for which allowance is made for the actual propagation paths through the non-horizontal layers of the reservoir.

Abstract: The present invention provides systems and methods for providing music based cognitive skills development. More particularly the present invention may provide a music based cognitive skills development platform. The platform is provided using computer implemented systems and methods for training a human subject so as to enhance his/her intelligence, attention, language skills and brain functioning. The present invention provides these benefits using exercises, one or more of which are based on musical training aspects, however, in addition to musical training other cognitive skills development exercises may be used, as described herein. The invention may be utilized by users of varying musical skills and may be presented at a level corresponding to the prior musical training (if any) of a user, and in a form corresponding to the cognitive capacity, interests and attention span of a user.

Abstract: The disclosure relates to a three-phase electric motor that uses high magnetic energy permanent magnets and that has a low detent torque. The motor consists of a rotor with N pairs of poles and of a stator portion with teeth extending radially from an annular gear. The teeth have windings and the ends thereof comprise an arc of circle, the middle of which is located on a radius R1 and two sides defining an alpha angle, the vertex of which is located on a radius R2. The ratio R2/R1 is substantially equal to (1+/?0.26/N), and the alpha angle is between 110 and 135°.

Abstract: A method and device for determining the air turbulence likely to be encountered by a first aircraft may use a turbulence indication from a second aircraft so as to make and use a prediction of the impact of the turbulence on the first aircraft if it is located in a particular position.

Abstract: The invention pertains to the protection of spectacles arms and relates to a protection member for a spectacles arm comprising an elongated tubular envelope (54) sealed against chemical agents, having an open end and having an essentially flat shape in the plane of a hook-shaped spectacles arms. The envelope (54) includes, at a location corresponding to the position of the bend of a hook-shaped spectacles arm, a device (62) preferably for folding about a transverses axis and for reducing at said location the distance between the inner edge of the bend of the spectacles arm and the edge of the member provided on the side of the bend interior. Application in hairdressing facilities.

Abstract: The invention pertains to the protection of spectacles arms and relates to a protection member for a spectacles arm comprising an elongated tubular envelope (54) sealed against chemical agents, having an open end and having an essentially flat shape in the plane of a hook-shaped spectacles arms. The envelope (54) includes, at a location corresponding to the position of the bend of a hook-shaped spectacles arm, a device (62) preferably for folding about a transverses axis and for reducing at said location the distance between the inner edge of the bend of the spectacles arm and the edge of the member provided on the side of the bend interior. Application in hairdressing facilities.

Abstract: Method and device for determining the air turbulence likely to be encountered by an aircraft. The device (1) which is provided on a second aircraft comprises a means (12) for using a turbulence indication from a first aircraft to make a prediction of the impact of the turbulence on this second aircraft if it is located in a particular position, and a means (13, 14) for using this prediction.

Abstract: A broadband array antenna which delivers an axisymmetric main lobe. The antenna includes patches arranged with an interruption of periodicity in one of the planes and is corner-fed by tree like feed lines from a central point of energization. Opposite each path is a parasitic element for broadening the band. This device can be used in particular with measurement radar.

Abstract: A system for target designation by laser comprises circuitry for precise alignment of the aircraft and pod lines of sight. The alignment circuitry operates digitally in a computer in which the director cosine data of the aircraft and pod lines of sight are compared to provide error signals fed to corresponding servo-controls. Alignment is obtained by the introduction of corrective data utilized for producing vector rotations, the corrective data being produced by means of a manually controlled stick device, integration circuits and a non-volatile memory.