Abstract: An apparatus for generating a virtual image including a display element for generating an image, an optical waveguide for expanding an exit pupil, and an antiglare element, which is arranged after the optical waveguide in the beam path and is configured as a shutter comprising slats, wherein the slats are braced in pre-tensioning equipment outside of a visible region of the apparatus, and rest against a contacting element under pretension.

Abstract: An illustrative geolocation authentication system designates a movement feasibility corroboration factor as a location corroboration factor for the geolocation authentication system to authenticate geolocations of mobile devices. Based on the designating of the movement feasibility corroboration factor, the geolocation authentication system determines a first reported geolocation of a mobile device associated with a first time and a second reported geolocation of the mobile device associated with a second time. Given that the mobile device is located at a true geolocation at the second time, the geolocation authentication system then determines, based on the first and second reported geolocations of the mobile device, a feasibility metric indicative of a likelihood that the second reported geolocation of the mobile device is the true geolocation at the second time. Corresponding methods and systems are also disclosed.

Abstract: An illustrative geolocation authentication system designates a movement feasibility corroboration factor as a location corroboration factor for the geolocation authentication system to authenticate geolocations of mobile devices. Based on the designating of the movement feasibility corroboration factor, the geolocation authentication system determines a first reported geolocation of a mobile device associated with a first time and a second reported geolocation of the mobile device associated with a second time. Given that the mobile device is located at a true geolocation at the second time, the geolocation authentication system then determines, based on the first and second reported geolocations of the mobile device, a feasibility metric indicative of a likelihood that the second reported geolocation of the mobile device is the true geolocation at the second time. Corresponding methods and systems are also disclosed.

Abstract: An exemplary geolocation authentication system receives user input representative of customized authentication settings that designate a location corroboration factor from a plurality of location corroboration factors that correspond to independent ways of determining geolocations of mobile devices. The system receives, from a mobile device located at a true geolocation, a reported geolocation of the mobile device. Then, in response to the receiving of the reported geolocation, the system accesses a datapoint that characterizes a correlation between the reported geolocation of the mobile device and the true geolocation of the mobile device. The datapoint characterizes the correlation based on the location corroboration factor designated by the customized authentication settings. The system further determines, based on the datapoint, a custom confidence metric representative of a likelihood that the reported geolocation is the true geolocation. Corresponding methods and systems are also disclosed.

Abstract: An exemplary geolocation data management system identifies a passive monitoring pattern for tracking a geolocation of a mobile device and tracks the geolocation of the mobile device as the mobile device traverses a path during a time period. The system tracks the geolocation by determining geolocations in accordance with the identified passive monitoring pattern and by generating corresponding geolocation records for the mobile device. Based on a contiguous subset of these geolocation records, the system determines that the mobile device dwelled at a particular geolocation for a time interval and generates a dwell record for the mobile device. The system further presents, by way of a user interface, a map indicating the path traversed by the mobile device during the time period. The map shows a geolocation record and the dwell record to be visually differentiable from one another. Corresponding methods and systems are also disclosed.

Abstract: An exemplary geolocation data management system identifies a passive monitoring pattern for tracking a geolocation of a mobile device and tracks the geolocation of the mobile device as the mobile device traverses a path during a time period. The system tracks the geolocation by determining geolocations in accordance with the identified passive monitoring pattern and by generating corresponding geolocation records for the mobile device. Based on a contiguous subset of these geolocation records, the system determines that the mobile device dwelled at a particular geolocation for a time interval and generates a dwell record for the mobile device. The system further presents, by way of a user interface, a map indicating the path traversed by the mobile device during the time period. The map shows a geolocation record and the dwell record to be visually differentiable from one another. Corresponding methods and systems are also disclosed.

Abstract: An exemplary geolocation authentication system receives user input representative of customized authentication settings that designate a location corroboration factor from a plurality of location corroboration factors that correspond to independent ways of determining geolocations of mobile devices. The system receives, from a mobile device located at a true geolocation, a reported geolocation of the mobile device. Then, in response to the receiving of the reported geolocation, the system accesses a datapoint that characterizes a correlation between the reported geolocation of the mobile device and the true geolocation of the mobile device. The datapoint characterizes the correlation based on the location corroboration factor designated by the customized authentication settings. The system further determines, based on the datapoint, a custom confidence metric representative of a likelihood that the reported geolocation is the true geolocation. Corresponding methods and systems are also disclosed.

Abstract: A reactor for carrying out a three-phase reaction of a liquid phase, a gaseous phase, and a catalyst over a fixed catalyst bed is disclosed. The liquid and gaseous phases are passed through the reactor via a mixing and distribution device positioned over the fixed catalyst bed. The mixing and distribution device includes a trough distributor for the liquid phase, having trough-shaped channels, outlet tubes in the trough-shaped channels for the liquid phase, a distributor plate below the trough distributor, and vertical nozzles, having one or more openings for the gaseous phase and one or more openings, arranged below the openings for the gaseous phase. For entry of the liquid phase, the nozzles are installed so that, at a predetermined liquid feed rate, the surface of the liquid on the distributor plate is below the openings for the gaseous phase and above the openings for the liquid phase.

Abstract: An electrolysis device producing alkali metals from a liquid alkali metal heavy metal alloy, including at least two connected tubes forming an electrolysis unit. Two solid electrolyte tubes are arranged concentrically in each tube and oriented with openings towards one end of each tube such that a first annular gap for guiding a liquid alkali metal forming an anode is located between the inside of the tube and the outside of the solid electrolyte tubes. An alloy inlet and outlet for the liquid alkali metal in each of the tubes leads into the first annular gap of a tube. An inner chamber sealed off from the alloy inlet, first annular gap, and alloy outlet in each solid electrolyte tube receives liquid alkali metal that can be used as a cathode connected to the alkali metal outlet. Two respective closure devices are arranged at the two ends of each tube.

Abstract: A reactor (R) for carrying out a three-phase reaction of a liquid phase (1) and a gaseous phase (2) over a fixed catalyst bed (F), with the fixed catalyst bed (F) being arranged horizontally in the reactor (R) and the liquid phase (1) and the gaseous phase (2) being passed through the reactor (R) in cocurrent from the top downward via a mixing and distribution device (MD) over the fixed catalyst bed (F), wherein the mixing and distribution device (MD) comprises a trough distributor (TD) for the liquid phase (1) having trough-shaped channels (C) and outlet tubes (O) in the trough-shaped channels (C) for the liquid phase (1) and a distributor plate (P) which is arranged with a spacing below the trough distributor (TD) and in which vertical nozzles (N) having one or more openings (P1) for entry of the gaseous phase (2) and one or more openings (P2), which are arranged below the openings (P1) for entry of the gaseous phase, for entry of the liquid phase (1) into the nozzles (N) are installed, with the number and

Abstract: An electrolysis device producing alkali metals from a liquid alkali metal heavy metal alloy, including at least two connected tubes forming an electrolysis unit. Two solid electrolyte tubes are arranged concentrically in each tube and oriented with openings towards one end of each tube such that a first annular gap for guiding a liquid alkali metal forming an anode is located between the inside of the tube and the outside of the solid electrolyte tubes. An alloy inlet and outlet for the liquid alkali metal in each of the tubes leads into the first annular gap of a tube. An inner chamber sealed off from the alloy inlet, first annular gap, and alloy outlet in each solid electrolyte tube receives liquid alkali metal that can be used as a cathode connected to the alkali metal outlet. Two respective closure devices are arranged at the two ends of each tube.