Abstract: A method is provided of reducing the thickness of a region of a target sample. Reference data is obtained that is representative of x-rays generated by a particle beam being directed upon part of a reference sample under a first set of beam conditions. Under a second set of beam conditions the particle beam is directed upon the region of the target sample. The resultant x-rays are monitored as monitored data. Output data are then calculated based upon the reference and the monitored data. Material is then removed from the region, so as to reduce its thickness, in accordance with the output data.

Abstract: A method of monitoring access authorizations by an access monitoring system by a first method, the data carriers or the mobile electronic devices, on which a valid access authorization or an ID is assigned, are detected and the carriers/devices current positions are determined by trilateration or multilateration. A second imaging method is executed, parallel to the first method, and the current position of all persons presented in the entry area is detected by cameras. All persons, with and without valid access authorization, in the entry area are detected so that an ID map and a people map are created. The ID map corresponds to people who have valid access authorization and the people map corresponds everybody in the entry area. An overlay map is created by matching the ID map with the people map, to identify persons with valid access authorization or ID and the people without valid access authorization.

Abstract: A suction device for a portable power tool includes at least one suction unit for extracting and/or storing particles, in particular workpiece particles arising during machining of a workpiece with the portable power tool. The suction device further includes at least one damping unit for a vibration-damped arrangement of the suction unit on the portable power tool.

Abstract: The disclosure is based on a hand-held power tool having at least one switch device which comprises at least one switching element at least for activating a power supply of a drive unit, having at least one quick-change tool holder which is provided for holding an insertion tool which is different from an insertion tool with an SDS® shaft having a maximum transverse extent of 10 mm and/or having at least one accumulator interface. It is proposed that the at least one switching device comprises at least one locking unit which is provided for maintaining, at least essentially independently of an effect of an operator activation force, an active operating mode which can be activated by actuating the at least one switching element.

Abstract: A method is provided for compressing results of a join query. A join order of a result set is determined from the join query, where the result set includes a plurality of tuples. A plurality of dictionary entries for the result set is received. A nested hierarchy of dictionaries is created based on the join order and the dictionary entries. A plurality of encoded tuples is received. The nested hierarchy of dictionaries is used by a processor to decode the plurality of encoded tuples so as to produce the plurality of tuples of the result set.

Abstract: A method is provided for compressing results of a join query. A join order of a result set is determined from the join query, where the result set includes a plurality of tuples. A plurality of dictionary entries for the result set is received. A nested hierarchy of dictionaries is created based on the join order and the dictionary entries. A plurality of encoded tuples is received. The nested hierarchy of dictionaries is used by a processor to decode the plurality of encoded tuples so as to produce the plurality of tuples of the result set.

Abstract: A power tool, in particular a portable power tool, has a housing, at least one motorized drive unit, and at least one sensor device. The at least one motorized drive unit is mounted in and the at least one sensor device is mounted in or on the housing. The at least one sensor device has an electronic unit and at least one sensor arranged on the electronic unit. At least one of the housing, the sensor device, and the electronic unit has at least one bearing for mounting. The bearing contains at least one resilient element configured to damp or reduce vibrations between the housing and the electronic unit.

Abstract: A method of monitoring and controlling an access control system (12) comprising a server (18) and an access control device (22) connected to the server (16) for data communication. Data goggles (1) monitor and control the access control system. The data goggles are connected wirelessly to the server (16) and the access control device (22) for data communication and receive data in real time from the server (16) and/or the access control device (22), which enable monitoring of the access control system (12). The data is displayed to the user of the data goggles (1) by a display device (10). The access control system (12) is controlled by commands which are inputted by the data goggles (1) and transmitted to the server (16) and/or the access control device (22). The control commands are input either by voice control, by gesture control, by a touchpad or by eye tracking.

Abstract: An electronic access authorization system maintains location-dependent and/or time-dependent validity data which can be read out wirelessly by an access control device (4), which data can be acquired online or, in the case of an accreditation, can be requested online as a special form of access authorization, and which can be transferred following successful issuance in electronic form to an electronic terminal (1) of a user. Changes, on the part of the issuer of the access authorization, to the validity data of the access authorization can be transferred via a data communication connection between a server (2) of the issuer of the access authorization and the electronic terminal (1) to the electronic access authorization stored in the electronic terminal (1) and displayed on a display device (5) of the electronic terminal.

Abstract: An electronic access authorization system maintains location-dependent and/or time-dependent validity data which can be read out wirelessly by an access control device (4), which data can be acquired online or, in the case of an accreditation, can be requested online as a special form of access authorization, and which can be transferred following successful issuance in electronic form to an electronic terminal (1) of a user. Changes, on the part of the issuer of the access authorization, to the validity data of the access authorization can be transferred via a data communication connection between a server (2) of the issuer of the access authorization and the electronic terminal (1) to the electronic access authorization stored in the electronic terminal (1) and displayed on a display device (5) of the electronic terminal.

Abstract: A method is provided of reducing the thickness of a region of a target sample. Reference data is obtained that is representative of x-rays generated by a particle beam being directed upon part of a reference sample under a first set of beam conditions. Under a second set of beam conditions the particle beam is directed upon the region of the target sample. The resultant x-rays are monitored as monitored data. Output data are then calculated based upon the reference and the monitored data. Material is then removed from the region, so as to reduce its thickness, in accordance with the output data.

Abstract: The disclosure is based on a sensor device, in particular a hand-held power-tool sensor device, for identifying an uncontrolled occurrence of jamming in the case of a hand-held power tool, having at least one sensor unit, which is provided to sense at least one motion characteristic value of the hand-held power tool, and having a protective unit, which is provided to control the hand-held power tool in dependence on at least one triggering threshold value and the at least one motion characteristic value. It is proposed that the protective unit be provided to set the at least one triggering threshold value in a variable manner and/or to define at least one further triggering threshold value.

Abstract: A method is provided for compressing results of a join query. A join order of a result set is determined from the join query, where the result set includes a plurality of tuples. A plurality of dictionary entries for the result set is received. A nested hierarchy of dictionaries is created based on the join order and the dictionary entries. A plurality of encoded tuples is received. The nested hierarchy of dictionaries is used by a processor to decode the plurality of encoded tuples so as to produce the plurality of tuples of the result set.

Abstract: A method is provided for compressing results of a join query. A join order of a result set is determined from the join query, where the result set includes a plurality of tuples. A plurality of dictionary entries for the result set is received. A nested hierarchy of dictionaries is created based on the join order and the dictionary entries. A plurality of encoded tuples is received. The nested hierarchy of dictionaries is used by a processor to decode the plurality of encoded tuples so as to produce the plurality of tuples of the result set.

Abstract: A power-tool cooling apparatus for a portable power tool comprises at least one cooling unit configured to generate a cooling fluid flow to cool a drive unit of the portable power tool, and at least one further cooling unit configured to generate a further cooling fluid flow. The at least one further cooling unit is designed to differ from the at least one cooling unit.

Abstract: A method of growing a thin film comprises growing a thin film by conformally forming at least one layer over a substrate having structures extending from a surface of the substrate, whereby the or each layer is formed over the surface of the substrate and over the structures extending from the surface. The thickness of the conformal layer, or the sum of the thicknesses of the conformal layers, is at least half the average spacing of the structures, and; at least one of the height of the structures, the average spacing of the structures and the size of the smallest dimension of the structures is set so as to provide an enhanced growth rate for the or each conformal layer (compared to the growth rate over a planar substrate).

Abstract: Techniques are disclosed for multi-granularity hierarchical aggregate selection based on update, storage and response constraints. For example, for a temporal hierarchy of aggregation statistics associated with a plurality of database records, wherein the temporal hierarchy comprises two or more aggregation statistics levels and each level has a different temporal granularity associated therewith, a method comprises iteratively modifying the temporal hierarchy to at least one of: (a) minimize a storage usage cost while satisfying a temporal hierarchy update constraint and a query response time constraint; (b) reduce a temporal hierarchy update time and a query response time while satisfying a storage usage constraint; and (c) minimize a query response time for frequently applied queries that do not shift in time while satisfying the storage usage constraint, wherein the resulting temporal hierarchy that achieves at least one of (a), (b) and (c) is identified as an optimal temporal hierarchy.

Abstract: Systems and methods of estimating a fluid injector tip temperature. A controller having a processor and a memory supplies a current to a coil of a fluid injector, a resistance of the coil is measured when the current is supplied to the coil, a coil temperature is determined based on the measured resistance, and a tip temperature of a fluid injector tip is estimated based on the determined coil temperature.

Abstract: A method is provided for compressing results of a join query. A join order of a result set comprising multiple tuples is determined from the join query, and a nested hierarchy of dictionaries is maintained based on the join order. The nested hierarchy of dictionaries is used to encode each of the tuples of the result set so as to produce an encode tuple, and each of the encoded tuples is transmitted to a client system. Also provided is a method for decompressing results of a join query.