Abstract: It is described a blade for a wind turbine for converting wind energy into electric energy, including: a blade structure longitudinally extending along a blade axis (X1) and including a blade tip, an opposite blade root, a longitudinal leading edge portion and a longitudinal trailing edge portion which are extended between the blade root and the blade tip; and an outer aerodynamic shell defining an airfoil including an airfoil leading edge, an airfoil trailing edge and an airfoil suction side and an airfoil pressure side between the airfoil leading and trailing edges.

Abstract: A wind turbine for converting wind energy into electric energy using a primary and secondary pivotable wind rotor. The rotors of the wind turbine have a horizontal and a vertical axis. The secondary rotor rotates independently from the wind, enabling a continuous production of electric energy, which is advantageous in that the turbine overcomes drawbacks in intermittent wind speeds.

Abstract: A wind turbine (1) is disclosed, for converting wind energy into electric energy, comprising:—a shuttle (2) comprising a head portion (11) and a tail portion (12);—a primary wind rotor (3) pivotable with respect to the shuttle (2) around a primary rotational axis (A1) and comprising a primary group of blades (4), a fastening hub (5) for said blades (4) projecting from the head portion (11) of the shuttle (2) and a shaft adapted for being rotatably moved by the primary wind rotor (3);—at least one primary electric generator comprising at least one primary electric stator integral with the shuttle (2) and a primary electric rotor integral with said shaft or operatively connected to it, the primary electric generator adapted to convert wind energy intercepted by said primary group of blades (4) into electric energy.

Abstract: It is described a blade (6) for a wind turbine (1) for converting wind energy into electric energy, comprising: -a blade structure (7) longitudinally extending along a blade axis (X1) and comprising a blade tip (11), an opposite blade root (12), a longitudinal leading edge portion (13) and a longitudinal trailing edge portion (14) which are extended between the blade root (12) and the blade tip (11); and -an outer aerodynamic shell (20) defining an airfoil (25) including an airfoil leading edge (26), an airfoil trailing edge (27) and an airfoil suction side and an airfoil pressure side (28, 29) between said airfoil leading and trailing edges (26, 27).

Abstract: A modular frame structure (1) for a wall made of glass or other pane material includes: a lower side or base (2) suitable to receive and lock an edge portion of a pane, an upper side or cross member (4) suitable to receive and lock an edge portion of a pane, one or more posts (6) suitable to receive and lock a portion of a pane, connecting means (8), suitable to guarantee a connection between posts (6) and lower (2) and upper (4) sides, in which: posts (6) comprise a reinforcing bar (9) suitable to confer stiffness to frame structure (1), connecting means (8) comprise a first undercut coupling seat (27) obtained on lower side (2), a second undercut coupling seat (28) obtained on upper side (4), first coupling portion (29) being insertable in first undercut (27), second coupling portion (30) being insertable in second undercut (28).

Abstract: A modular frame structure (1) for a wall made of glass or other pane material includes: a lower side or base (2) suitable to receive and lock an edge portion of a pane, an upper side or cross member (4) suitable to receive and lock an edge portion of a pane, one or more posts (6) suitable to receive and lock a portion of a pane, connecting means (8), suitable to guarantee a connection between posts (6) and lower (2) and upper (4) sides, in which: posts (6) comprise a reinforcing bar (9) suitable to confer stiffness to frame structure (1), connecting means (8) comprise a first undercut coupling seat (27) obtained on lower side (2), a second undercut coupling seat (28) obtained on upper side (4), first coupling portion (29) being insertable in first undercut (27), second coupling portion (30) being insertable in second undercut (28).

Abstract: A light transmission system and method for a building according to which shading surfaces are provided on the roof of the building for preventing direct sunlight from passing through a roof light, while permitting the maximum amount of indirect sunlight to pass through the roof light.

Abstract: A light transmission system and method for a building according to which shading surfaces are provided on the roof of the building for preventing direct sunlight from passing through a roof light, while permitting the maximum amount of indirect sunlight to pass through the roof light.

Abstract: A three-dimensional reticulated structure or space lattice structure is formed of metal rods tapered at their ends so that the loss of cross-section leads to a thickening of the tubular wall of the rod, whereby it can be threaded at its ends by removal of material without losing mechanical strength. This is preferably attained by coining through at least six successive passes in dies of increasingly smaller dimensions. The knots or junctions are bored metal cups, said rods converging into the bores thereof and being fixed simply by bolts. A plug of concrete reinforced with steel fibres closes the base of the cup while allowing its reopening for inspection and maintenance, and provides further mechanical strength to the assembly.

Abstract: The system comprises means for supplying into the inner space of the passenger compartment two series of air flows, and namely a first series of substantially pulsating air flows, each of which pulsating air flows is cyclically interrupted for a pre-established period of time, the said flows of the first series being supplied into the upper region of the said space, in which region normally the heads of the passengers in the said passenger compartment are situated, and a second series of substantially continuous air flows, the said flows of the second series being supplied into the low region of the said space.

Abstract: The door assembly comprises a frame provided with at least three vertical rods and two longitudinal side members, superimposable sideways on a side of the carrying structure of the motor vehicle; said frame is provided with continuous support surfaces arranged to provide an abutment for the peripheral rims of the doors and a seal between themselves and the doors.

Abstract: The assembly comprises a first element made of a plastic material and having a width and a height equal to the width of the bodywork of the vehicle and to the distance between the floor of the passenger compartment and the windshield, respectively, and provided with means for fastening the assembly to the bodywork, and a second element made of a second plastic material and arranged to be fastened to the first element; the two elements are provided with walls and seatings which are arranged to generate the housing for the members and the devices of the ventilation system, the channels for the air and a support plate for the battery.