Abstract: The present invention relates, on one hand, to a metal cementing apparatus (1) formed by a vessel (2) with a liquid phase formed by a solution (3) containing noble metal, and a solid phase formed by a cementing metal or a less noble metal in contact with the solution (3), where one of said phases moves at a high speed with respect to the other one, and the difference in speeds allows the cementation of the noble metal on the solid phase, and the simultaneous detachment and separation thereof, and comprises means for generating the movement of at least the phase with the high speed and removing means for removing the precipitated noble metal.

Abstract: A method of extracting metals from polymetallic sulphide ores or concentrates comprising at least Cu, Zn, Pb and Ag, comprising a first step of atmospheric leaching in sulphate medium in the presence of recycled silver for extracting Cu and Zn and a second step of atmospheric leaching in chloride medium for extracting Pb and Ag.

Abstract: This disclosure relates to a hydrogen fuel cell stack with one or more hydrogen fuel cell (102) having in turn a proton exchange membrane (104), a hydrogen reaction layer (112) and an oxygen reaction layer (116) within a pair of bipolar plates (106). At least a bipolar plate (106) comprises a channel (108) inside for hydrogen inflow. Additionally, this disclosure relates to a method of upgrading a hydrogen fuel cell stack, said method comprising inserting a channel (108) for hydrogen inflow inside at least a bipolar plate (106).

Abstract: The present invention relates, on one hand, to a metal cementing apparatus (1) formed by a vessel (2) with a liquid phase formed by a solution (3) containing noble metal, and a solid phase formed by a cementing metal or a less noble metal in contact with the solution (3), where one of said phases moves at a high speed with respect to the other one, and the difference in speeds allows the cementation of the noble metal on the solid phase, and the simultaneous detachment and separation thereof, and comprises means for generating the movement of at least the phase with the high speed and removing means for removing the precipitated noble metal.

Abstract: A method of extracting metals from polymetallic sulphide ores or concentrates comprising at least Cu, Zn, Pb and Ag, comprising a first step of atmospheric leaching in sulphate medium in the presence of recycled silver for extracting Cu and Zn and a second step of atmospheric leaching in chloride medium for extracting Pb and Ag.

Abstract: The present disclosure refers to a method and a related system of flight termination for air vehicles. The method and the system of flight termination for air vehicles involve deploying a parachute for flight termination of an air vehicle. A flight termination system, which in turn comprises at least one microcontroller unit that is connected to at least one parachute deployment system for deploying an air vehicle's parachute when a major emergency is determined during an air vehicle's flight.

Abstract: A fuel cell stack for enhanced hybrid power systems, comprising first (2) and second (3) conductive end plates with contact terminals (4); a plurality of fuel cells (7) configured to be connected in series and stacked between the conductive end plates (2, 3); at least one conductive middle plate (6, 6?) with at least one contact terminal (11, 11?), each conductive middle plate (6, 6?) being configured to be stacked between adjacent fuel cells (7). The contact terminals (11, 11?) may comprise conductive tabs (11) protruding from the fuel cell stack (1). The invention also refers to a hybrid power system comprising a battery (50), a fuel cell stack (1) and a control unit (70) configured to select an operating voltage of the fuel cell stack (1) when the hybrid power system (90) is feeding a load (60).

Abstract: An unmanned aerial vehicles take-off system may include at least one winch, at least one towline, at least one dolly on which at least one aircraft is mounted, and at least one battery of the at least one winch. At least one micro-controller unit is connected to the at least one winch, wherein the at least one microcontroller unit is configured to control the activation/deactivation of the at least one winch. An unmanned aerial vehicle take-off method is also disclosed that includes operating the at least one winch by means of at least one microcontroller unit connected to said at least one winch.

Abstract: This disclosure relates to a hydrogen fuel cell stack with one or more hydrogen fuel cell (102) having in turn a proton exchange membrane (104), a hydrogen reaction layer (112) and an oxygen reaction layer (116) within a pair of bipolar plates (106). At least a bipolar plate (106) comprises a channel (108) inside for hydrogen inflow. Additionally, this disclosure relates to a method of upgrading a hydrogen fuel cell stack, said method comprising inserting a channel (108) for hydrogen inflow inside at least a bipolar plate (106).

Abstract: Method and apparatus for storing cryogenic liquids. A cryogenic tank comprising an inner storage volume within a first wall and a plurality of chambers defined by a plurality of chamber walls within the inner storage volume. The chamber walls extending the length of the inner storage volume, and the chambers disposed along the first wall and that at least one of the chambers of the plurality of chambers is defined by a plurality of chamber walls and a portion of the first wall.

Abstract: The present disclosure refers to a method and a related system of flight termination for air vehicles. The method and the system of flight termination for air vehicles involve deploying a parachute for flight termination of an air vehicle. A flight termination system, which in turn comprises at least one microcontroller unit that is connected to at least one parachute deployment system for deploying an air vehicle's parachute when a major emergency is determined during an air vehicle's flight.

Abstract: A platform for the interaction of employers and workers, individuals, groups of individuals and organizations through internal social networks for each company (organization), which identifies the personality of each of the users that comprise the social network through personality and self-esteem, communication and leadership assessments. As a result, employers, organizations, individuals and groups of individuals have the opportunity to help, through practical advice provided by the platform, the users to strengthen their own virtues and to develop skills in areas of improvement, generate pleasant, satisfying and high performance work environments and groups.

Abstract: An unmanned aerial vehicles take-off system may include at least one winch, at least one towline, at least one dolly on which at least one aircraft is mounted, and at least one battery of the at least one winch. At least one micro-controller unit is connected to the at least one winch, wherein the at least one microcontroller unit is configured to control the activation/deactivation of the at least one winch. An unmanned aerial vehicle take-off method is also disclosed that includes operating the at least one winch by means of at least one microcontroller unit connected to said at least one winch.

Abstract: A device for clamping, substantially horizontally, a bottle having a bottom and a neck provided with a collar. The device comprises a body provided with an opening in which part of the neck is inserted, and an element pivotally attached to a face of the body directed toward the opening. The element pivots around an axis which is perpendicular to the axis of passage of the opening. Furthermore, the element has a first portion supporting a part of the neck directed towards the bottom of the bottle and a second portion supporting a part of the neck adjacent to the collar.

Abstract: A truss component saw apparatus having multiple saws arranged in two sets for providing a variety of angular cut-offs for lumber lengths. The saws in each set are arranged for adjustment movements involving from 1 to 4 degrees of freedom of movement. An automatic control mechanism is provided for automated adjustment of the saws to predetermined positions. The degrees of freedom are linear, pivotal, and movement within an X-Y coordinate plane arranged substantially perpendicular with respect to the pivot axis established by the saws within a given set of saws. A lumber conveyor system is provided for the apparatus.