Abstract: Devices, systems, and methods for computer-assisted navigation and/or robot-assisted surgery. Navigable instrumentation, which are capable of being navigated by a surgeon using the surgical robot system, allow for the navigated movement of instruments or other surgical devices. The instruments may be suitable for procedures involving navigated and/or robotic total knee arthroplasty, for example.

Abstract: An arrangement is for compensating voltage drops in a power supply network. The arrangement includes at least one first converter system and a second converter system. The intermediate circuits thereof are coupled, and the first converter system is connected to a first distribution and the second converter system is connected to a second distribution.

Abstract: An embodiment relates to an arrangement for equalizing voltage drops in a power supply mains having a first mains supply and a second mains supply. The arrangement includes at least one first converter system and one second converter system, to which intermediate circuits are coupled and which form a mains coupling as a result. The first mains supply is connected to a distributor via a decoupling inductor, a voltage measurement and a first switch. The second mains supply is connected to the distributor via a second switch, and wherein the mains coupling is arranged parallel to the second switch.

Abstract: Systems and methods for resecting a knee joint using a navigated pin guide driver system. The navigated pin guide driver system communicates with a navigation system to aid a user in placing cut block pins into the knee joint. The navigated pin guide driver system may include a handle, a reference element that electronically communicates with the navigation system, one or more pin guide tubes that may correspond to one or more cut blocks, and a distal tip that is configured to attach to the bone.

Abstract: The invention relates to a method for operating a fuel cell system (10) using a first operating mode, in which, when all of the fuel cell stacks (22, 26) are inactive, one fuel cell stack (22) is pre-heated using a coolant that is pre-heated by means of an electric heater (42) while bypassing all cooler circuits (58) of the active coolant circuits (14) via bypass lines (64) and the one pre-heated fuel cell stack (22) is activated in order to pre-heat an additional fuel cell stack (26) of the fuel cell system. Other operating modes for operating a fuel cell system are disclosed in additional embodiments.

Abstract: Systems and methods for resecting a knee joint using a navigated pin guide driver system. The navigated pin guide driver system communicates with a navigation system to aid a user in placing cut block pins into the knee joint. The navigated pin guide driver system may include a handle, a reference element that electronically communicates with the navigation system, one or more pin guide tubes that may correspond to one or more cut blocks, and a distal tip that is configured to attach to the bone.

Abstract: Devices, systems, and methods for computer-assisted navigation and/or robot-assisted surgery. Navigable instrumentation, which are capable of being navigated by a surgeon using the surgical robot system, allow for the navigated movement of instruments or other surgical devices. The instruments may be suitable for procedures involving navigated and/or robotic total knee arthroplasty, for example.

Abstract: Systems and methods for resecting a knee joint using a navigated pin guide driver system. The navigated pin guide driver system communicates with a navigation system to aid a user in placing cut block pins into the knee joint. The navigated pin guide driver system may include a handle, a reference element that electronically communicates with the navigation system, one or more pin guide tubes that may correspond to one or more cut blocks, and a distal tip that is configured to attach to the bone.

Abstract: An embodiment relates to an arrangement for equalizing voltage drops in a power supply mains having a first mains supply and a second mains supply. The arrangement includes at least one first converter system and one second converter system, to which intermediate circuits are coupled and which form a mains coupling as a result. The first mains supply is connected to a distributor via a decoupling inductor, a voltage measurement and a first switch. The second mains supply is connected to the distributor via a second switch, and wherein the mains coupling is arranged parallel to the second switch.

Abstract: Systems and methods for resecting a knee joint using a navigated pin guide driver system. The navigated pin guide driver system communicates with a navigation system to aid a user in placing cut block pins into the knee joint. The navigated pin guide driver system may include a handle, a reference element that electronically communicates with the navigation system, one or more pin guide tubes that may correspond to one or more cut blocks, and a distal tip that is configured to attach to the bone.

Abstract: The invention relates to a method for operating a fuel cell system (10) using a first operating mode, in which, when all of the fuel cell stacks (22, 26) are inactive, one fuel cell stack (22) is pre-heated using a coolant that is pre-heated by means of an electric heater (42) while bypassing all cooler circuits (58) of the active coolant circuits (14) via bypass lines (64) and the one pre-heated fuel cell stack (22) is activated in order to pre-heat an additional fuel cell stack (26) of the fuel cell system. Other operating modes for operating a fuel cell system are disclosed in additional embodiments.

Abstract: A DC overvoltage protection device for an energy storage system, an energy storage system having such a DC overvoltage protection device, a method for operating a DC overvoltage protection device for an energy storage system and a method for operating an energy storage system having a DC overvoltage protection device. The DC overvoltage protection device includes at least one solid-state relay. The solid-state relay interrupts an auxiliary voltage circuit of the AC switch.

Abstract: An arrangement is for compensating voltage drops in a power supply network. The arrangement includes at least one first converter system and a second converter system. The intermediate circuits thereof are coupled, and the first converter system is connected to a first distribution and the second converter system is connected to a second distribution.

Abstract: A DC overvoltage protection device for an energy storage system and/or an energy generating system has at least one auxiliary release on an AC-switch and the at least one auxiliary release interrupts the AC switch. The DC overvoltage protection device further has at least one electrical energy store and/or at least one photovoltaic installation and a plurality of converters each having a power section having a DC voltage measurement system and an interface.

Abstract: A system (40) for processing a workpiece includes a support surface (88) for supporting a workpiece (44). The system (40) includes a processing tool (92) movable with respect to a processing path. The system (40) includes a sensor carriage (408) movable along a scan axis and having a light source (476, 515, 550, 586) located to emit a light beam at an angle to the scan axis onto a target surface of a workpiece (44), and a camera (484, 522, 558, 594) configured to record location data of the light beam on a target surface of a workpiece (44) as the sensor carriage (408) moves along the scan axis. The system (40) includes a control system for generating a three-dimensional point representation of a workpiece surface from the light beam location data, to control movement of the processing tool (92) based on the three-dimensional point representation of a workpiece (44).

Abstract: A method for detecting the use of a battery of an energy store system may include continuously generating a use profile by transforming data into a dynamically updated visual representation of the use of the battery storage device using a frequency distribution.

Abstract: A system (40) for processing a workpiece includes a support surface (88) for supporting a workpiece (44). The system (40) includes a processing tool (92) movable with respect to a processing path. The system (40) includes a sensor carriage (408) movable along a scan axis and having a light source (476, 515, 550, 586) located to emit a light beam at an angle to the scan axis onto a target surface of a workpiece (44), and a camera (484, 522, 558, 594) configured to record location data of the light beam on a target surface of a workpiece (44) as the sensor carriage (408) moves along the scan axis. The system (40) includes a control system for generating a three-dimensional point representation of a workpiece surface from the light beam location data, to control movement of the processing tool (92) based on the three-dimensional point representation of a workpiece (44).

Abstract: A method is for detecting the operational management of a battery store of an energy store system. In order to provide a practical solution for detecting the operational management of a battery store, a continuous generation of a use profile imaging the operational management of the battery store by means of the descriptive statistic is proposed.

Abstract: An energy storage arrangement for an electric load which exchanges electrical power with an energy supply network, has two connections in the form of a load to the parallel circuit and for the energy supply network, a converter which is switched between the connections, is voltage-impressed and contains an energy store. The energy store is designed to store an energy amount which exceeds that necessary for the regular operation of the converter by a multiple. An arc furnace which is fed as a load from an energy supply network contains such an energy storage arrangement.

Abstract: An electric drive system, in particular for a rail vehicle, includes an electric energy accumulator and an electrochemical energy accumulator, connected in parallel. According to at least one embodiment of the invention, a component, e.g., a diode with a transmission direction facing away from the electrochemical energy accumulator, is situated in a connecting line between the electric energy accumulator and the electrochemical energy accumulator.