Abstract: A process for mineral oil production, especially Winsor type III microemulsion flooding, in which an aqueous surfactant formulation which comprises at least one nonionic surfactant having 8 to 30 ethoxy units, which has a polydispersity of from 1.01 to 1.12, and at least one further surfactant is forced through injection wells into a mineral oil deposit and crude oil is removed from the deposit through production wells.

Abstract: A navigation system includes a display for displaying at least a part of a digital map. The navigation system includes a navigation database which stores any text and/or symbol(s) associated with a signpost independently from a background of the signpost. The text and/or symbol(s) and the background may be retrieved from the navigation database and displayed as a signpost image in the displayed part of the digital map.

Abstract: A system and method for processing a 3-dimensional landmark providing a 3-dimensional representation of a 3-dimensional real world object located at a predefined geographic location is provided. The method includes the steps of providing a data set containing the 3-dimensional landmark, determining a largest continuous horizontal surface of the 3-dimensional landmark, and storing the determined largest horizontal surface as road traffic area of a road network used by a user when moving on the object.

Abstract: A navigation device comprises a processing device and a database. The database may store first data defining, for a plurality of objects, respectively a three-dimensional representation of the object. The database may store second data including, for at least a subset of the plurality of objects, an icon representation of the respective object, coordinates of the respective object and a pointer to a portion of the first data which is associated with the respective object. The processing device is coupled to the database and is configured to control an optical output device to display an object based on the first data or based on the second data.

Abstract: The invention relates to system and method for generating a 3-dimensional representation of a tunnel. Road network data is provided having a plurality of road segments, at least one road segment being a tunnel road segment, including the information that said at least one road segment is a road segment located in a tunnel. The tunnel segment in the road network is identified, providing a geographical elevation map including elevation data of the geographical region in which the tunnel road segment is located, providing predefined patterns representing predefined parts of a 3-dimensional tunnel body, generating the 3-dimensional representation of the tunnel based on the tunnel road segment, the elevation map and the predefined patterns, and storing the 3-dimensional representation of the tunnel in connection with the road network as a 3-dimensional object which is located at the geographical position of the tunnel road segment.

Abstract: To update a database of a navigation device which stores at least a base version of a digital map, versions of the digital map which are available locally in the database or remotely from the navigation device are identified. To execute the navigation task, a version of the digital map is selected for execution of the navigation task. Data from a sub-set of storage blocks in which the selected version is stored is required to execute the navigation task. Depending on whether all storage blocks of the sub-set are already stored locally in the database, data stored in storage blocks of the sub-set which are not yet stored locally in the database are downloaded via a wireless interface. The downloaded data are stored in the database without modifying the base version of the digital map.

Abstract: In a database usable for a navigation device, object data units comprising information for a three-dimensional displaying of objects like buildings are provided. At least one of the object data units comprises an adjustable height parameter for adjusting a height of the corresponding object when displayed.

Abstract: A vehicle navigation system has a processing device. The processing device receives entries in a first data structure that are generated and are respectively associated with one tile of a tiling. The processing device may compare a three-dimensional terrain on the respective tile with at least one pre-defined tile pattern. Either an identifier for a pre-defined tile pattern or data describing the terrain on the respective tile may be stored by the processing device in the entry.

Abstract: The present invention relates to a process for producing mineral oil from underground formations, wherein, in one process step, permeable regions of the underground formation are blocked by injecting aqueous formulations of hydrophobically associating copolymers into the formation.

Abstract: A vehicle navigation system includes a map database storing map data. The map data has links representing road segments, road number icons, and additional road information icons. At least one of the links is associated with at least one of the road number icons and at least one of the additional road information icons. The vehicle navigation system may furthermore include a processing unit coupled to the map database and configured to control outputting of route guidance information via an output device.

Abstract: A navigation system may display a map element represented by a spline including a plurality of vertices. Label coordinate values derived from coordinate values of the plurality of vertices may be retrieved from a database. A label assigned to the map element may be displayed based on the stored label coordinate values. The assigned label may be adapted to the geometric form of at least a portion of the map element.

Abstract: A process for mineral oil production, in which an aqueous surfactant formulation comprising at least one alkyl polyglucoside is injected into a mineral oil deposit through at least one injection borehole and crude oil is withdrawn from the deposit through at least one production borehole, wherein the formulation does not comprise any alcohols as cosolvents.

Abstract: A navigation system includes a display for displaying at least a part of a digital map. The navigation system includes a navigation database which stores any text and/or symbol(s) associated with a signpost independently from a background of the signpost. The text and/or symbol(s) and the background may be retrieved from the navigation database and displayed as a signpost image in the displayed part of the digital map.

Abstract: A navigation system may display a segment of a digital map including a map element and a label corresponding to the map element. A portion of the digital map where no labeling shall occur may be determined based on coordinate values of the map element. The label may be displayed such that the portion of the digital map where no labeling shall occur is not occupied by any portion of the label.

Abstract: A navigation system includes a display for displaying at least a part of a digital map. A landmark detected within the digital map is displayed as a three-dimensional graphical object or a two-dimensional graphical object depending on a location of the landmark.

Abstract: The present invention relates to a process for binding non-consolidated oxidic inorganic materials with curable formulations which comprise etherified amino resins, and to cured compositions obtainable by the process. A preferred embodiment of the invention comprises a process for stabilizing underground formations composed of oxidic inorganic materials, wherein the curable composition is injected into the underground formation and cured at the temperatures which exist in the formation.

Abstract: A vehicle navigation device comprises a map data base storing map data and a processing unit. The map data base includes first attributes indicative of the presence of express lanes and second attributes assigned to lanes to indicate which lanes of a road segment are express lanes. The processing unit is coupled to the map data base and is configured to perform a route search based at least on the first attribute and to control outputting of route guidance information via a user interface based at least on the second attribute.

Abstract: The use of free, aromatic acids which contain at least two aromatic ring systems or at least two acid functions, and/or salts thereof, for influencing rock formations in the exploitation of underground mineral oil and/or natural gas deposits is described. The free acids are used in particular for influencing and especially controlling the flow of acid into rock formations in so-called acidizing methods. Suitable salts of said aromatic acids serve for reducing the rock permeability and in particular reducing the inflow of water into the well bore. In addition to this use, corresponding methods are also claimed.

Abstract: A process for mineral oil production, in which an aqueous formulation comprising at least one water-soluble, hydrophobically associating copolymer is injected through at least one injection borehole into a mineral oil deposit, and crude oil is withdrawn from the deposit having a deposit temperature of 35° C. to 120° C., preferably 40° C. to 90° C., through at least one production borehole, wherein the water-soluble, hydrophobically associating copolymer comprises at least acrylamide or derivatives thereof, a monoethylenically unsaturated monomer having anionic groups and a monoethylenically unsaturated monomer which can bring about the association of the copolymer.

Abstract: A copolymer containing, as monomer components, a) at least one sulfonic acid-containing compound, b) at least one nitrogen-containing N-vinylamide, one acrylamide or methacrylamide and c) at least one bifunctional or higher-functional vinyl ether is proposed. These copolymers are suitable in particular as thixotropic agents, antisegregation agents and water retention agents and overall as an additive in cement-containing but also gypsum-based systems. Such copolymers having a molecular weight of >40 000 g/mol can be used in particular as admixtures in the exploration of mineral oil and natural gas deposits.