Abstract: Eddy current induced magnetic fields (MF) are compensated in a magnetic resonance imaging system. An MR-sequence (M) includes a number of gradients. A dataset includes values of an amplitude and a time constant of eddy current fields of a number of gradients on at least one gradient axis. A number of points in time within the time period of the MR-sequence are defined. A number of constant currents are calculated for a number of coils of the magnetic resonance imaging system based on the dataset. The number of constant currents is designed to compensate at least at the one defined point in time (PT1, PT2). The calculated number of constant currents are applied on the related coils prior or during the application of the MR-sequence or a section of the MR-sequence.

Abstract: A method and product for implementing application consistent snapshots of a sharded relational database across multiple storage arrays using a distributed and federated protection domains model across two or more storage clusters.

Abstract: A phase difference caused by eddy currents is determined for an MR system. First MR data is acquired with a first sequence by irradiating at least one RF pulse having an RF excitation pulse, importing a first test gradient during or after the RF excitation pulse, applying a read-out gradient, and acquiring the first MR data while the read-out gradient is switched, so the first MR data is acquired for at least one K-space line. Second MR data is acquired with a second sequence by importing a second test gradient during or after the RF excitation pulse, and applying the read-out gradient. The second MR data is acquired while the read-out gradient is switched, so the second MR data is acquired for the at least one K-space line. The phase difference per voxel is determined using the first MR data and the second MR data.

Abstract: A control device establishes a change in a main magnetic field expected for a respective time instant and based on the established expected change in the main magnetic field, correctively adjusts the main magnetic field and/or a nominal receive frequency of the RF receive coil and/or a transmit frequency for subsequent RF transmit pulses and/or takes the expected change in the main magnetic field into account in the evaluation of the received MR signals. At least for some of the RF transmit pulses, the control device acquires, via a sensor device, a portion of the respective radiofrequency wave supplied to the RF transmit coil. The controller extracts therefrom an oscillation corresponding to a respiratory motion of the patient and based on the variation with time of the extracted oscillation, establishes the change in the main magnetic field expected for the respective time instant.

Abstract: In order to improve the failure proneness of methods or devices for optically measuring distances, it is proposed that the measurement pulses for measuring distances are sent out aperiodically.

Abstract: An improved method for optical distance measurement is provided, in which only subsets of the transmitting elements of the transmission matrix are activated when using a transmission matrix to transmit measuring pulses and a reception matrix for receiving the latter.

Abstract: In order to improve the failure proneness of methods or devices for optically measuring distances, it is proposed that the measurement pulses for measuring distances are sent out aperiodically.

Abstract: In a method, by a magnetic resonance device, a transmit B1 field map is determined for a region, a plurality of MR images of at least one part of the region are acquired using transmitter settings differing from each other, and signal intensities of individual pixels measured by the MR images are interpolated by the transmit B1 field map. A correction of the signal intensities may also be effected by carrying out a receive B1 correction by a spatial mirroring of the transmit B1 field map on a symmetry plane of a measured object. A magnetic resonance device is used to carry out the method. The method may be applied, for example, in medical diagnostics.

Abstract: The invention relates to a light fixture (1) comprising an elongated carrier element (5), at least one lighting module (20), which can be detachable secured to the carrier element (5), and means for supplying power to the lighting module (20), said means comprising contacts arranged on the carrier element (5) or on one of the device carriers (50) held by the carrier element (5). In said light fixture, spring contacts (41) constitute at least some of the contacts.

Abstract: The invention relates to a light fixture (1) comprising an elongated carrier element (5), a number of lighting modules (20), which can be detachably secured to the carrier element (5), and means for supplying power to the lighting module (20), said means comprising an operating device (100) and contacting means (40, 41) which are connected to said operating device (100) and to which the lighting modules (20) can be electrically connected. In said light fixture, the operating device (100) and the contacting means (40, 41) are arranged on a device carrier (50) that can be detachably secured to the carrier element (5).

Abstract: The invention relates to a light fixture (1) comprising an elongated carrier element (5), a number of lighting modules (20), which can be detachably secured to the carrier element (5), and means for supplying power to the lighting module (20), said means comprising an operating device (100) and contacting means (40, 41) which are connected to said operating device (100) and to which the lighting modules (20) can be electrically connected. In said light fixture, the operating device (100) and the contacting means (40, 41) are arranged on a device carrier (50) that can be detachably secured to the carrier element (5).

Abstract: The invention relates to a light fixture (1) comprising an elongated carrier element (5), at least one lighting module (20), which can be detachable secured to the carrier element (5), and means for supplying power to the lighting module (20), said means comprising contacts arranged on the carrier element (5) or on one of the device carriers (50) held by the carrier element (5). In said light fixture, spring contacts (41) constitute at least some of the contacts.

Abstract: In a method, by a magnetic resonance device, a transmit B1 field map is determined for a region, a plurality of MR images of at least one part of the region are acquired using transmitter settings differing from each other, and signal intensities of individual pixels measured by the MR images are interpolated by the transmit B1 field map. A correction of the signal intensities may also be effected by carrying out a receive B1 correction by a spatial mirroring of the transmit B1 field map on a symmetry plane of a measured object. A magnetic resonance device is used to carry out the method. The method may be applied, for example, in medical diagnostics.

Abstract: A sequence of a plurality of pulses following one another in time is applied to an examination volume of a magnetic resonance apparatus using a plurality of transmission antennas. In order to transmit the respective pulse, the plurality of transmission antennas are actuated using a specific transmission signal by a control device of the magnetic resonance apparatus. The transmission signals have predetermined phase and amplitude relationships to one another. The phase and amplitude relationships of a first pulse of the sequence S differ from the phase and amplitude relationships of a second pulse of the sequence.

Abstract: A device for testing electronic component devices on a carrier or a substrate, having a positioning and holding device for the earner or the substrate, a test head and a test socket connected thereto, with which multiple simultaneous electronic component devices on the carrier or the substrate are contactable. At least one additional test socket is connected to the test head.

Abstract: The invention relates to a device for generating and/or arranging sequences of a fluid sample in a carrier fluid. The invention comprises a microchannel having an inlet, an outlet and a nozzle opening therebetween leading into the microchannel. The invention further relates to a delivery unit, which pumps in the carrier fluid using a feed volume flow and suctions off the carrier fluid using a discharge volume flow. In a sample container, the nozzle opening is in contact with the fluid sample. By means of a control unit, the ratio between feed volume flow and discharge volume flow is varied. The cross-section of the nozzle opening is selected such that no carrier medium exits from the nozzle opening when the feed volume flow equals the discharge volume flow and that a fluid sample enters the nozzle opening when the discharge volume flow is greater than the feed volume flow. The invention further relates to a method for generating and/or arranging sequences of a fluid sample in a carrier fluid.

Abstract: Provided herein are masonry structures, including walls, which are disposed upon a footing having a re-bar disposed longitudinally therethrough. The masonry structures of the invention include vertical bores disposed along their lengths, and include tensioned cables which extend through a first vertical bore, are spirally wound about the re-bar, and also extend through a second vertical bore such that the end portions are rigidly anchored in position near the top course of masonry units used in constructing the structures, and wherein the tensioned cables are under a relatively high mechanical tension. By staggering a plurality of tensioning cables, structures comprising a plurality of masonry units of enhanced structural stability over structures of prior art are provided.

Abstract: A casting system includes a filtration assembly including a filter vessel housing spaced filters pre-heated to a temperature approximating a pouring temperature of molten material to be filtered to prevent breakage of the filter due to thermal shock from contact with the molten material. Preferably, an induction coil is used to inductively heat a susceptor adjacent the filter vessel or inductively heat filters which themselves serve as susceptors. Typically, the filter vessel is disposed below a pouring vessel and above a mold, pour cup and any sprue system used and is heated independently from the same. The filters are heated during pouring to facilitate flow of the molten material therethrough whereby very fine filters may be used. Spacing of the filters enhances flow control and allows a head of molten material to form whereby dross floats to the top of the head to prevent its entry into the mold.

Abstract: Hook holder (1) for a hook (4), especially a fish hook, having a shank (5) and one or more curved end (portions) extending from the shank, said hook holder including a container part (2) provided with a cavity (7) for accommodating the curved end portions of the hook, and a container opening (8)through which the curved end portions of the hook are insertable into the cavity. The hook holder further includes retaining means to prevent the hook's curved end portions from unintentionally leaving the container part.

Abstract: Hook holder (1) for a hook (4), especially a fish hook, having a shank (5) and one or more curved end (portions) extending from the shank, said hook holder including a container part (2) provided with a cavity (7) for accommodating the curved end portions of the hook, and a container opening (8)through which the curved end portions of the hook are insertable into the cavity. The hook holder further includes retaining means to prevent the hook's curved end portions from unintentionally leaving the container part.