摘要:
A graphene-based composite material for the generation of hydrogen and heat in aqueous environment. The surface of such graphene is at least partially covered by a metal film, said metal being magnesium.
摘要:
A solid-state photomultiplier device comprising a surface (2) sensitive to photons (F) provided on a semiconductor substrate (3) and provided with a plurality of light sensitive microcells (4) divided into a plurality of sub-groups arranged one after the other according to a pre-established trajectory. The device comprises a plurality of current dividers (7), each of which is electrically connected to at least one of the sub-groups, and where each of the current dividers (7) comprises a first resistor (71) and a second resistor (72) to implement a current partition of the resistive type. The first resistors (71) and the second resistors (72) respectively have a gradually descending and gradually increasing conductance value in proportion to the position along the pre-established trajectory of the sub-group to which each of the current dividers (7) is electrically connected. The device also comprises a first output channel (10) electrically connected to one end of the first resistors (71) and a second output channel (11) electrically connected to one end of the second resistors (72).
摘要:
The present Invention relates to a photodetector (PD) comprising a plurality of pixels (PXL); each one of said pixels (PXL) comprises: - a group of detection devices (SPD-1, SPD-2, SPD-3, SPD-4) provided with respective outputs, each one of said detection devices (SPD-1, SPD-2, SPD-3, SPD-4) being of the SPAD type and therefore being adapted to generate an electrical pulse at the output thereof as a result of an event corresponding to a photon that hits thereon, - a combinational circuit (G-1, G-2, G-3, G-4, G-5A, G-5B, G-6, G-7) which has an output and a group of inputs that corresponds to said group of detection devices (SPD-1, SPD-2, SPD-3, SPD-4) and which implements a logic function between inputs and output, - a digital counter (CNT) having an input, the outputs of said detecting devices (SPD-1, SPD-2, SPD-3, SPD-4) of said group are connected respectively to the inputs of said combinational circuit (G-1, G-2, G-3, G-4, G-5A, G-5B, G-6, G-7) and the output of said combinational circuit (G-1, G-2, G-3, G-4, G-5A, G-5B, G-6, G-7) is connected to the input of said digital counter (CNT); whereby said digital counter (CNT) provides as output the sum of all the events detected by said detecting devices (SPD-1, SPD-2, SPD-3, SPD-4) of said group.
摘要:
The invention is an X-ray diffractometer (1) suited to determine the residual stresses in polycrystalline materials subjected to analysis, comprising: a supporting structure (2) in which it is possible to identify a curved guide (3) essentially in the shape of an arc of a circle, along which a supporting carriage (4) is slidingly coupled; a driving unit (5) that sets the supporting carriage (4) moving along the curved guide (3); an X-ray source unit (6) and a detector unit (7), connected to the supporting carriage (4) for their rotation with respect to the point at the height of which said sample is positioned. In the X-ray diffractometer the driving unit (5) comprises: a driving bar (8) essentially arranged between the opposite ends (31, 32) of a chord of the curved guide (3) and defining a longitudinal axis (x) that lies on a plane (π) essentially parallel to the plane (ρ) defined by the same curved guide (3); a drive element (9) movable along the driving bar (8) and operatively associated with the supporting carriage (4) through articulation means (10) so as to allow the linear motion of the drive element (9) to be transformed in the curved motion of the supporting carriage (4); power means (11) associated with a first end of the driving bar (8) to set the drive element (9) moving according to the longitudinal axis (x).
摘要:
A method of managing a man/machine interface to virtually handle virtual game objects, in particular to handle playing cards and chips using at least one multi-touch display. The method includes the recognition of a particular combination of gestures by a user, leading to reveal at least one playing card. According to another aspect of the invention, the method may be applied to handling chips and stacks of chips being functional to the bets in a community or multi-player card game.