Abstract: A method of forming a dental restoration for a tooth having an outer surface includes acquiring a first three-dimensional representation representative of the outer surface of the tooth; generating a design of a first part of the dental restoration based on the first three-dimensional representation of the tooth; forming the first part of the dental restoration; preparing the tooth to form a prepared tooth while forming the first part of the dental restoration; obtaining a second three-dimensional representation of the prepared tooth; generating a design of a second part of the dental restoration based on at least the second three-dimensional representation of the prepared tooth; merging the design of the second part of the dental restoration to the first part of the dental restoration; and forming the second part of the dental restoration.

Abstract: A method for image-based point measurement includes moving a surveying system along a path through a surrounding and capturing a series of images of the surrounding. A subset of images are defined as frames and a subset of frames are defined as key-frames. Textures are identified in first and second frames and are tracked in successive frames to generate first and second frame feature lists. A structure from motion algorithm is used to calculate camera poses for the images based on the first and second frame feature lists. Corresponding image points in images of the series of images are identified using feature recognition in at least a plurality of images. Three-dimensional coordinates of the selected image point are determined using forward intersection with the poses of the subset of images in which corresponding image points are identified. The three-dimensional coordinates of the selected image point are presented to the user.

Abstract: A method for image-based point measurement includes moving a surveying system along a path through a surrounding and capturing a series of images of the surrounding. A subset of images are defined as frames and a subset of frames are defined as key-frames. Textures are identified in first and second frames and are tracked in successive frames to generate first and second frame feature lists. A structure from motion algorithm is used to calculate camera poses for the images based on the first and second frame feature lists. Corresponding image points in images of the series of images are identified using feature recognition in at least a plurality of images. Three-dimensional coordinates of the selected image point are determined using forward intersection with the poses of the subset of images in which corresponding image points are identified. The three-dimensional coordinates of the selected image point are presented to the user.

Abstract: An engine simulation system and method for replacing an original engine in an existing system of a piece of equipment, including an engine controller from the original engine, a new engine having an engine controller, and a simulator module connected between the engine controller of the new engine and the engine controller of the original engine. The simulator module is configured to simulate that the original engine is still in the existing system.

Abstract: An engine simulation system and method for replacing an original engine in an existing system of a piece of equipment, including an engine controller from the original engine, a new engine having an engine controller, and a simulator module connected between the engine controller of the new engine and the engine controller of the original engine. The simulator module is configured to simulate that the original engine is still in the existing system.

Abstract: An electronic housing is disclosed for switching devices, including a housing lower part and a housing upper part. In an embodiment, a guide is formed in the interface region between the housing upper part and the housing lower part such that the housing upper part can be slid onto the housing lower part in the X direction via the guide in a fully automatic process.

Abstract: A circuit arrangement for Logic Built-In Self-Test (LBIST) includes a clock source configured to generate a system clock, a first clock division circuitry configured to derive a first punched-out clock and a plurality of scan chains operable at the first punched-out clock. Each scan chain has an associated output circuitry responsive to a leading edge of the first punched-out clock. The circuit arrangement includes a second clock division circuitry configured to derive a second punched-out clock. The second punched-out clock has a delay of one or more system clock periods relative to the first punched-out clock. A compacting logic is configured to compact signals received from the scan chains. A sequential retiming element connects the compacting logic to an input circuitry of a MISR. The sequential retiming element is responsive to a trailing edge of the second punched-out clock. The input circuitry is responsive to a leading edge of the second punched-out clock.

Abstract: A circuit arrangement for Logic Built-In Self-Test (LBIST) includes a clock source configured to generate a system clock, a first clock division circuitry configured to derive a first punched-out clock and a plurality of scan chains operable at the first punched-out clock. Each scan chain has an associated output circuitry responsive to a leading edge of the first punched-out clock. The circuit arrangement includes a second clock division circuitry configured to derive a second punched-out clock. The second punched-out clock has a delay of one or more system clock periods relative to the first punched-out clock. A compacting logic is configured to compact signals received from the scan chains. A sequential retiming element connects the compacting logic to an input circuitry of a MISR. The sequential retiming element is responsive to a trailing edge of the second punched-out clock. The input circuitry is responsive to a leading edge of the second punched-out clock.

Abstract: An electronic housing is disclosed for switching devices, including a housing lower part and a housing upper part. In an embodiment, a guide is formed in the interface region between the housing upper part and the housing lower part such that the housing upper part can be slid onto the housing lower part in the X direction via the guide in a fully automatic process.

Abstract: The surge arrester has an arrester housing, two electrical power connections (16, 17) which are routed out of the arrester housing, and at least one varistor, which is arranged in the arrester housing (1, 2), is in the form of a disc and has two contact points which are provided on the end faces. The contact points are each electrically conductively connected to one of the two electrical power connections (16, 17). The varistor contains a non-metallized active part (12) and two elastic contact elements (11, 13) which are pressed against the end faces of the active part (12), forming an electrical contact. The end surfaces (12a, 12b) may be convex or concave instead of being plane-parallel and, if they are in the desired plane-parallel form, form a small angle with respect to one another. The elastic contact elements (11, 13) and the non-metallized end surfaces (12a, 12b) allow good electrical contact in all cases.

Abstract: The present invention relates to a protective working device (1) for miners, comprising a lamp (3) , which can for instance be attached to a protective helmet (2), and which is connected via a cable (4) to a supply battery (11) which can be fastened to an item of clothing such as a belt (6) and is supplied with electrical energy from the supply battery (11). A transponder device (13) is supplied with energy from the same battery (11) which interoperates with underground personnel detection systems such as detection sensors which monitor the working and operating areas of support frames for underground faces or of underground mining machines.

Abstract: A method and a device for use in underground mining for the detection of the presence of persons at mine faces supported by support frames, whereby detection sensors (25) are provided on at least some of the support frames (10), and which are coupled to control units (27) for the support frames (10), whereby the detection sensors (25) sample the working and operating area (24) of the associated support frame (10) and bring the latter to a standstill in its movement sequence, if the detection sensors (25) detect the presence of a person in a detection area (30). In accordance with the invention the detection sensors (25) of the individual support frames (10) can be switched on and off by the control units (27) and are only activated when the associated support frame (10) is to be moved and are again de-activated after completion of the movement of the associated support frame (10).

Abstract: The surge arrester has an arrester housing, two electrical power connections (16, 17) which are routed out of the arrester housing, and at least one varistor, which is arranged in the arrester housing (1, 2), is in the form of a disc and has two contact points which are provided on the end faces. The contact points are each electrically conductively connected to one of the two electrical power connections (16, 17).

Abstract: Continuous process for recovering the overspray of aqueous coating agents during spray application by collecting it in an aqueous washing liquid which is continuously circulated in a circuit (A) to the spray booth, where the solids concentration of said washing liquid is maintained within the range of 1-1.5 wt.-%, whereby a part of the washing liquid containing overspray is fed to a first ultrafiltration circuit (B) in which the solids concentration of the circulating liquid is maintained within a range of 8-15 wt.-%, a part of the circulating liquid from ultrafiltration circuit (B) being fed to a further ultrafiltration circuit (C) in which the solids concentration of the circulating liquid is maintained approximately constant within a range between 35 wt.

Abstract: A rotary filter of the type described in U.S. Pat. No. 4,193,875 in which each of the filter disks, axially spaced on the rotating shaft, is subdivided into a plurality of sections or cells and each of the sections is connected by a tube to a fluid distributor or control head for evacuation, pressurization or the like. According to the invention, each of the passages connecting each section with the control head is formed by a unitary tube having an axially extending section, a bend and a radial section connected by the bend to the axial section. In the control head a disk fixed to the hollow shaft is provided in which the ends of the axial sections terminate removably and sealingly. The radial sections are fixed to the filter-segment carriers, e.g. by flanges and screws or bolts through these flanges.