Abstract: A sun-tracking light distributor for a photosynthetic culture in an aqueous liquid, comprising: two light distribution walls made of a transparent material, creating an elongated V-shaped channel adapted to receive the sunlight and to be partly immersed in the aqueous liquid, the sun-tracking light distributor has a center of buoyancy, a vertical passing through the center of buoyancy defines an axis of flotation, and a pivot axis of the sun-tracking light distributor is offset relative to the axis of flotation. Owing to the offset pivot axis, the orientation of the light distributor is changed by varying the level of aqueous liquid, thus allowing a tracking of the sun's altitude.

Abstract: A sun-tracking light distributor for a photosynthetic culture in an aqueous liquid, comprising: two light distribution walls made of a transparent material, creating an elongated V-shaped channel adapted to receive the sunlight and to be partly immersed in the aqueous liquid, the sun-tracking light distributor has a center of buoyancy, a vertical passing through the center of buoyancy defines an axis of flotation, and a pivot axis of the sun-tracking light distributor is offset relative to the axis of flotation. Owing to the offset pivot axis, the orientation of the light distributor is changed by varying the level of aqueous liquid, thus allowing a tracking of the sun's altitude.

Abstract: A sun-tracking light distributor for a photosynthetic culture in an aqueous liquid, comprising: two light distribution walls made of a transparent material, creating an elongated V-shaped channel adapted to receive the sunlight and to be partly immersed in the aqueous liquid, the sun-tracking light distributor has a center of buoyancy, a vertical passing through the center of buoyancy defines an axis of flotation, and a pivot axis of the sun-tracking light distributor is offset relative to the axis of flotation. Owing to the offset pivot axis, the orientation of the light distributor is changed by varying the level of aqueous liquid, thus allowing a tracking of the sun's altitude.

Abstract: An in-line roller skate having a shoe and a wheel supporting frame extending therefrom for supporting aligned wheels. The frame includes a main frame body mounted to the shoe and at least one auxiliary frame body for supporting a wheel and being pivotally mounted to the main frame body. A resilient and deformable member is interposed between the auxiliary frame body and the shoe. The auxiliary frame body is so pivotable as to provide for moving the wheel towards and away the shoe for a distance determined by the extension and compression of the resilient and deformable member.

Abstract: An air conditioning system (10) using a refrigerant fluid (102) and a cooling liquid, the air conditioning system (10) comprising: a first compartment (22) defining a first air inlet (31) and a first air outlet (33) and a first ventilator (28) for creating a first air flow (35) through the first compartment (22) from the first air inlet (31) to the first air outlet (33); a first heat exchange unit (16) provided in the first compartment (22) for allowing heat exchange between the refrigerant fluid (102) and the first air flow (35) when the refrigerant fluid (102) is circulated through the first heat exchange unit (16); a second heat exchange unit (14) also provided in the first compartment (22) for allowing heat exchange between the refrigerant fluid (102) and the first air flow (35) when the refrigerant fluid (102) is circulated through the second heat exchange unit (14), the second heat exchange unit (14) being provided downstream from the first heat exchange unit (16) relatively to the first air flow (35),

Abstract: Disclosed herein is a frame for an in-line roller skate and as well as a roller skate having such a frame. This roller skate has a shoe and a wheel supporting frame extending therefrom said shoe for supporting aligned wheels. The frame includes a main frame body mounted to the shoe and at least one auxiliary frame body for supporting a wheel and being pivotally mounted to the main frame body. A resilient and deformable member is interposed between the auxiliary frame body and the shoe. The auxiliary frame body is so pivotable as to provide for moving the wheel towards and away the shoe for a distance determined by the extension and compression of the resilient and deformable member.

Abstract: A database of target objects suitable for use in detecting the presence of one or more target objects in a receptacle is provided. The database of target objects comprises a plurality of entries, each entry being associated to a respective target object whose presence in a receptacle it is desirable to detect during security screening. An entry for a given target object comprises a group of sub-entries, each sub-entry being associated to the given target object in a respective orientation. At least part of each sub-entry is suitable for being processed by a processing unit implementing an optical correlation operation to attempt to detect a representation of the given target object in an image of the receptacle. A method, an apparatus and a system for generating entries for the database of target objects are also provided.

Abstract: A laser apparatus provided with an aiming beam using a method for the injection of both laser light and aiming beam forming light in an optic fiber will be described herein. More specifically, the present disclosure describes a method, an injection module and a laser apparatus designed to inject laser light into the core and aiming beam forming light into the cladding of the optic fiber.

Abstract: A laser apparatus provided with an aiming beam using a method for the injection of both laser light and aiming beam forming light in an optic fiber will be described herein. More specifically, the present disclosure describes a method, an injection module and a laser apparatus designed to inject laser light into the core and aiming beam forming light into the cladding of the optic fiber.

Abstract: The invention relates to hoops for rollers for the continuous casting of aluminium, characterized in that they are in the form of forged cylindrical casings which have undergone heat treatment and machining and consist of an alloy steel having the following composition in percentages by weight: C: 0.30 to 0.36; Mn: 0.30 to 0.60; Si: 0.15 to 0.45; Ni: Less than 0.40; Cr: 2.80 to 3.40; Mo: 0.85 to 1.25; V: 0.10 to 0.30; S:.ltoreq.0.020; P:.ltoreq.0.020; Cu:.ltoreq.0.30, the remainder being substantially iron and residual impurities.

Abstract: The present invention relates to the production of metal parts whose core and surface must have different characteristics.

Abstract: A method of providing doped material on a substrate by chemical vapour deposition using a reactive gas.Variations in the doping level are obtained by displacing the doping source along a flow of non-reactive gas having a constant supply in order to vary the amounts of dopant converted to the vapour phase due to retrodiffusion of reactive vapours towards the doping source.Application to semiconductor devices in particular of the III-V type, especially for high-frequency devices.