Abstract: In one embodiment, a system for making a dental restoration is provided. The system includes a machine unit for processing a dental material to form the dental restoration, and a control unit for controlling the operation of the machine unit. An air channel for discharging a process-originated material from the machine unit provides an air connection between the machine unit and the control unit. Certain embodiments of invention are advantageous in that they help to increase the reliability of the machining operation.

Abstract: Database queries for retrieving data from database tables, that do not impose any constraints on the data to be retrieved, result in Cartesian product joins. Such unconstrained database queries when executed impose a significant load on resources, take a long time to execute, and may produce inaccurate and misleading results. Functionality can be implemented to reduce the amount of data retrieved by constraining database queries resulting in Cartesian product joins before they are executed. This can be done by leveraging referential constraints that depict relationships between the tables to be joined to limit the results produced by executing the Cartesian product join. Automatically detecting and preventing execution of Cartesian product joins by leveraging the referential constraints can reduce the processing load on the machine, reduce the time spent in executing the database query, minimize the number of query results, and prevent inaccurate results from being displayed.

Abstract: A controllable hydraulic oscillating slide machine includes an inner rotor arranged in a housing and having cylindrical recesses. A bearing is formed in the housing, in which a co-rotating outer rotor is mounted eccentrically to the inner rotor, the outer rotor having several pivotably suspended slide drivers that engage into the recesses of the inner rotor for rotationally driving the outer rotor by way of the inner rotor and form modifiable chambers. The slide drivers may each be coupled to a piston that is guided in a respective associated recess. A pressure level different from that in the chambers between the inner and the outer rotor may be set in the chambers delimited by the recesses and the associated pistons so that two different pressure levels may be generated and two different consumers can be supplied using the oscillating slide machine.

Abstract: A device for dispensing a dental composition comprises a piston for extruding a component of the dental composition from a container. The device has a roller drive for displacing the first piston. The roller drive comprises cooperating first and second rollers, and each of the rollers have a roller surface with a radial rib profile. The rollers are arranged for rolling with their roller surfaces on one another. The invention may help providing for a relatively reliable and compact device.

Abstract: A device for dispensing a material comprises a piston for extruding the material. The device further has a spindle and a cooperating nut that are rotatable relative to each other to displace the piston axially to a rotation axis of the spindle. The device is adapted for rotationally driving the spindle and the nut individually. The invention is advantageous in that it helps in providing a relatively compact and inexpensive device.

Abstract: A pendulum-slide cell pump may include a rotationally mounted inner rotor connected via pendulum-slides with an outer rotor and wherein the outer rotor may be configured to transfer rotational movement of the outer rotor to the inner rotor via the pendulum-slides.

Abstract: A vane pump is disclosed. The vane pump includes at least an inner rotor and at least one vane. The inner rotor is rotatably mounted in a cage and the at least one vane is configured in at least one substantially radial slot, the slot is configured in the inner rotor, wherein the slots and the vanes are arranged asymmetrically on the inner rotor.

Abstract: A system for making a dental restoration is provided. The system comprises a machine unit for processing a dental material to form the dental restoration, and a control unit for controlling the operation of the machine unit. An air channel for discharging a process-originated material from the machine unit provides an air connection between the machine unit and the control unit. The invention is advantageous in that it helps to increase the reliability of the machining operation.

Abstract: A method of making a dental workpiece is provided. The method comprises the steps of suspending machining of the workpiece, exposing the workpiece to a first air jet; and causing relative movement between the first air jet and the workpiece under numeric control. The method may facilitate manufacturing of dental workpieces.

Abstract: The present invention relates to an expansible hollow part, having at least one opening, which consists of an elastic biocompatible material and which comprises at least one biologically active substance and, optionally at least one matrix compound. The invention also provides a method of producing said expansible hollow part, a medical device covered at least partially with said hollow part, a kit-of-parts comprising said hollow part of the invention and the use of said hollow part as a therapeutic device and for protecting a medical device.

Abstract: A machine readable medium having instructions stored thereon to cause the machine to execute a method is provided. The method includes analyzing a received client request and available statistics to determine whether the request is likely to succeed and whether the request should be bundled with other requests. If the request is determined to not be likely to succeed, an error message is outputted to the client. If the request is determined to be likely to succeed but should not be bundled with other requests, a first service provider relevant to the request is invoked. If the request is determined to be likely to succeed and should be bundled with other requests, the request is bundled with the other requests and, subsequently, the first and/or a second service provider relevant to the bundled requests is invoked. The available statistics are then updated.

Abstract: Database queries for retrieving data from database tables, that do not impose any constraints on the data to be retrieved, result in Cartesian product joins. Such unconstrained database queries when executed impose a significant load on resources, take a long time to execute, and may produce inaccurate and misleading results. Functionality can be implemented to reduce the amount of data retrieved by constraining database queries resulting in Cartesian product joins before they are executed. This can be done by leveraging referential constraints that depict relationships between the tables to be joined to limit the results produced by executing the Cartesian product join. Automatically detecting and preventing execution of Cartesian product joins by leveraging the referential constraints can reduce the processing load on the machine, reduce the time spent in executing the database query, minimize the number of query results, and prevent inaccurate results from being displayed.

Abstract: A machine readable medium having instructions stored thereon to cause the machine to execute a method is provided. The method includes analyzing a received client request and available statistics to determine whether the request is likely to succeed and whether the request should be bundled with other requests. If the request is determined to not be likely to succeed, an error message is outputted to the client. If the request is determined to be likely to succeed but should not be bundled with other requests, a first service provider relevant to the request is invoked. If the request is determined to be likely to succeed and should be bundled with other requests, the request is bundled with the other requests and, subsequently, the first and/or a second service provider relevant to the bundled requests is invoked. The available statistics are then updated.

Abstract: An emergency response system capable of directing building occupants to a safe location in real-time is disclosed. The system comprises a plurality of sensors which detect and monitor an emergency condition, a central processing unit which evaluates the data, calculates accessible evacuation routes, and sends the result to output devices which provide directional information to occupants. By combining an analysis of the flow of evacuees with changes in building structural information and the evolution of an emergency condition the system combines situation-aware data with contextual information to thereby provide the best available evacuation route to evacuees. In this manner, some evacuees may be redirected to alternate evacuation routes during the evacuation process itself, thereby minimizing problems due to congestion, potential panic of the evacuees, and changes in the emergency condition while increasing the probability that evacuees will reach a safe location.