Edlund, Fabian

Zusammenfassung wird geladen …

A method for controlling a light intensity in an enclosed cultivation space, the enclosed cultivation space having a light regulating system including an artificial light source for emitting artificial light, the method comprising, detecting a first fluorescence gain and a second fluorescence gain at different light intensity operating points. If the fluorescence gain is greater when the light intensity is greater, then the light intensity setpoint can be increased. Similarly, if the gain is greater when the intensity is lower, then the setpoint can be reduced. The invention is based on the understanding that it is beneficial for plant growth to provide light at a level which corresponds to a maximum ChIF-gain. The light level which corresponds to a maximum ChlF-gain provides a good trade-off between production rate and production efficiency.

Zusammenfassung wird geladen …

The present invention relates to a system (1) for conversion of energy in a residual gas generated in an industrial process. The system (1) of the present invention comprises a combustion chamber (2) having a fuel inlet (3) configured to receive a flow of residual gas for combustion in the combustion chamber (2). The combustion chamber (2) further comprises an air inlet (4). The system (1) according to the present invention comprises a Stirling engine (5) configured to convert heat from the combustion chamber into mechanical energy, the Stirling engine having a heat exchanger (6) having a cross-section, wherein at least a portion of the heat exchanger (6) extends into the combustion chamber (2). According to the present invention, the system (1) further comprises a residual gas duct (7) being arranged for transporting the residual gas at atmospheric or near atmospheric pressure and an air duct (8) being arranged for transporting air at atmospheric or near atmospheric pressure. The system (1) of the present invention further comprises a gas diffusion chamber (9) comprising a residual gas inlet (10) through which the residual gas enters the gas diffusion chamber (9) from the residual gas duct (7), and a residual gas outlet (11) being in fluid communication with the fuel inlet (3) of the combustion chamber (2), wherein the residual gas is transported in a diffusion direction from the residual gas inlet (10) to the residual gas outlet (11). The gas diffusion chamber (9) has such a shape that the flow of residual gas at the fuel inlet (3) is substantially laminar and has a symmetric velocity profile.

Zusammenfassung wird geladen …

A device for acquiring a combined eye gaze image of an object under dark-eye effect conditions, with a first camera, a second camera, a first light source and a second light source being located on opposite sides of, and on essentially equal distance to a central optical axis. A control unit is arranged to acquire the combined eye gaze image by capturing, in a first point in time, a first frame of the object with the first camera with the second light source activated, and, at a second point in time, capturing a second frame of the object with the second camera with the first light source activated. The device comprises no additional light sources further away from the central optical axis than the first location and the second location. The device is thereby designed as compact as possible while a sufficient eye gaze tracking accuracy and robustness is maintained.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …