Abstract: MR signals are acquired with a method for phase contrast magnetic resonance (MR) imaging with speed encoding, in order to acquire raw data for multiple MR images. The multiple MR images are reconstructed. For this purpose, matrix elements are determined for numerous matrices, wherein the sum of the numerous matrices results in a pixel matrix. The pixel matrix has matrix elements that represent the pixel values for a reference MR image with flow compensation. The pixel matrix has further matrix elements that represent the pixel values for the at least one MR image with speed encoding. The matrix elements of the numerous matrices are determined such that a first matrix of the numerous matrices fulfills a first condition.

Abstract: A method for using flexible triggered segmentation to optimize magnetic resonance imaging includes partitioning a k-space table into a plurality of k-space segments, each respective k-space segment comprising one or more phase-encoding steps from a plurality of slice-encoding lines. A cardiac cycle is monitored using an electrical signal tracking system and used to trigger acquisition of the plurality of k-space segments over a plurality of acquisition windows.

Abstract: A distance measure between a beginning and an end of a material strip wound onto a body in a tangential direction can be determined by creating a height profile of a surface of the material strip, which covers the beginning and the end of the wound material strip in the tangential direction. If a position value of the beginning of the material strip is determined in the created height profile, the distance measure can be determined using this position value and the height profile covering the end of the material strip.

Abstract: In a method and magnetic resonance apparatus to acquire diagnostic image data of a contrast agent-filled target area of a patient, a peak time of the test bolus in the target area is automatically determined, from which a wait period is then determined for administering the main bolus. After the main bolus has been administered to the patient, magnetic resonance images of the target area are acquired, and each is analyzed immediately after acquisition thereof to determine whether that image shows arrival of the contrast agent. If and when one of these images shows such arrival, an acquisition protocol is immediately started in order to acquire the diagnostic image data set. If none of these images shows arrival of the contrast agent, the protocol to acquire diagnostic image data is started after the wait period.

Abstract: The vibration damper including a hydraulic end stop that has a sealing ring which is arranged between the end stop ring and the closure element, is supported axially on one side at the end stop ring, engages radially around the piston rod, is mounted in a sliding manner at the piston rod, and with its outer circumferential surface radially contacts the inner wall of the control space, wherein the sealing ring has at least one radial throttle groove which takes effect when the end stop with the sealing ring moves into the control space and ensures a defined flow of damping medium between the control chamber and the first working space, and wherein the sealing ring has a plurality of spring tongues which are supported at a supporting surface on the piston rod side.

Abstract: A distance measure between a beginning and an end of a material strip wound onto a body in a tangential direction can be determined by creating a height profile of a surface of the material strip, which covers the beginning and the end of the wound material strip in the tangential direction. If a position value of the beginning of the material strip is determined in the created height profile, the distance measure can be determined using this position value and the height profile covering the end of the material strip.

Abstract: A reconstructed image is rendered of a patient by a processor from a set of undersampled MRI data by first subtracting two repetitions of the acquired data in k-space to create a third dataset. The processor reconstructs the image by minimizing an objective function under a constraint related to the third dataset, wherein the objective function includes applying a Karhunen-Loeve Transform (KLT) to a temporal dimension of data. The objective function under the constraint is expressed as arg minf{??(f)?1 subject to ?Af?y?2??}. The reconstructed image is an angiogram which may be a 4D angiogram. The angiogram is used to diagnose a vascular disease.

Abstract: In a method and apparatus for time-resolved phase-contrast magnetic resonance (MR) imaging with speed encoding, MR signals are detected with multiple receivers in each of numerous time segments in order to acquire raw data in each of the time segments, in each case for numerous MR images with different speed encodings. Stationary image points and/or non-stationary image points are identified, dependent on the detected MR signals. A mask is defined, dependent on the identified stationary image points and/or the non-stationary image points, wherein the mask is locally variable. The numerous MR images for the numerous time segments are reconstructed from the acquired raw data, wherein the reconstruction occurs in an iterative process and with a temporal regularization, which is dependent on the mask.

Abstract: Users of a communication system can initiate electronic payments during a communication session hosted by the communication system or via a social network identity page hosted by the communication system. The communication system detects a payment signal from a user of the communication system and the collects payment information details either by displaying a payment object interface in a communication application of the user or receiving payment information input directly from the user's communication device. The payment information includes sender and recipient payment account identifiers that are communicated to a payment processing system for processing and delivery of the designated payment amount to the recipient.

Abstract: A system for open space data communication comprising a transmitting device and an optical receiver using multiple varying levels of emitted radiation output. The transmitting device includes multiple emitter groups that are capable of being switched on and off and each of which can be activated in parallel to emit fixed, varying radiation outputs. A total radiation output emitted by the transmitting device is defined by a sum of the emitted radiation outputs of the emitter groups, wherein to transmit a bit vector (b0 . . . bn) an emitter group assigned to a most significant bit (b0) emits a maximum radiation output Pmax and emitter groups assigned to the less significant bits (b1 . . . bn) of the bit vector emit radiation outputs: Px=Pmax/2x where x=1 . . . n.

Abstract: A camera arrangement for image detection includes radiation-sensitive sensor elements arranged to record a common object plane in offset fields of view, a balancer and a shading corrector. The balancer is implemented, for balancing the sensor elements, to post-process for each sensor element a sensor signal of the respective sensor signal n by means of balancing information determined in balancing and stored, so that a variation of the intensity I of incoming radiation in the respective field of view leads to a change of the respective post-processed sensor signal according to a desired mapping function Fn(anI), the mapping functions Fn( ) of all factory-balanced sensor elements being identical, and an being a sensor-individual factor. The shading corrector is implemented on the basis of a recording generated by means of the camera arrangement with the sensor elements, to change the sensor element-individual factors an so that intensity differences of the recording are balanced across the common object plane.

Abstract: In a magnetic resonance system and operating method, a series with a predetermined number of flip angles is established, that begins with a first flip angle that is smaller than the last flip angle of the series, and an arbitrary flip angle is greater than or equal to the preceding flip angle in the series. Respective predetermined regions of k-space are acquired that form first and second magnetic resonance data. Using a gradient echo sequence, each region is acquired during time interval as a series of components respectively with different flip angles in the series of flip angles. Each of the angiography magnetic resonance images has a flip angle range assigned thereto, and is formed by combining respective regions of k-space filled with components of the first and second magnetic resonance data that were acquired in that range.

Abstract: A device for measuring a complexly formed object includes a plurality of light-section measuring devices, a rotator for causing a rotation between the complexly formed object and the plurality of light-section measuring devices around a rotation axis, wherein each of the plurality of light-section measuring devices is configured to generate a respective fan beam in a respective fan plane, wherein the fan planes are arranged such that the rotation axis extends within each of the fan planes, wherein the plurality of light-section measuring devices is configured such that the fan beams are directed to the complexly formed object from different fan directions which, when projected into a common plane through which the rotation axis extends, by rotation around the rotation axis, differ from each other.

Abstract: The invention provides a computer-implemented method for generating a risk rating for a peer-to-peer transaction. The method comprises receiving a request to generate a risk rating for a proposed peer-to-peer financial transaction; identifying information associated with a plurality of previous peer-to-peer transactions of the payor; identifying one or more of the previous peer-to-peer transactions that are related to the proposed transaction; assigning a score to each of the related peer-to-peer transactions, the score being based at least in part on a determination of a level of success of each of the related peer-to-peer transactions; determining the risk rating for the proposed transaction based on the scores assigned to the transactions related to the proposed transaction; determining a payor risk rating for the payor; adjusting the risk rating for the proposed transaction based on the payor risk rating of the payor; and presenting the risk rating for the proposed transaction.

Abstract: An email payment system and method to provide users with the ability to initiate and send payments to one more recipients via email messaging. A user interface is provided in an email client that allows a user to insert payment with the email. Payment details are collected through one or more payment modals displayed in the email client. A payment object is inserted into the body of the email and is displayed to both the sender and recipient. The payment details captured in the payment object are communicated to a payment processor. The payment processor uses electronic payment accounts associated with the corresponding sender and recipient email addresses to identify the relevant electronic payment accounts and transfer the payment between said accounts. A status of the payment transaction is tracked and displayed within the payment object of the emails residing in both the sender and recipient email client.

Abstract: An email payment system and method to provide users with the ability to initiate and send payments to one more recipients via email messaging. A user interface is provided in an email client that allows a user to insert payment with the email. Payment details are collected through one or more payment modals displayed in the email client. A payment object is inserted into the body of the email and is displayed to both the sender and recipient. The payment details captured in the payment object are communicated to a payment processor. The payment processor uses electronic payment accounts associated with the corresponding sender and recipient email addresses to identify the relevant electronic payment accounts and transfer the payment between said accounts. A status of the payment transaction is tracked and displayed within the payment object of the emails residing in both the sender and recipient email client.

Abstract: An email payment system and method to provide users with the ability to initiate and send payments to one more recipients via email messaging. A user interface is provided in an email client that allows a user to insert payment with the email. Payment details are collected through one or more payment modals displayed in the email client. A payment object is inserted into the body of the email and is displayed to both the sender and recipient. The payment details captured in the payment object are communicated to a payment processor. The payment processor uses electronic payment accounts associated with the corresponding sender and recipient email addresses to identify the relevant electronic payment accounts and transfer the payment between said accounts. A status of the payment transaction is tracked and displayed within the payment object of the emails residing in both the sender and recipient email client.

Abstract: A lithography tool is calibrated using a calibration substrate having a set of first marks distributed across its surface in a known pattern. The tool is operated to apply a pattern comprising a plurality of second marks at various positions on the substrate, each second mark overlying one of the first marks and being subject to an overlay error dependent on an apparatus-specific deviation. The second marks are applied by multiple exposures while the substrate remains loaded in the tool. An operating parameter of the apparatus is varied between the exposures. An overlay error is measured and used to calculate parameter-specific, apparatus-specific calibration data based on knowledge of the parameter variation used for each exposure.

Abstract: A reticle is loaded into a lithographic apparatus. The apparatus performs measurements on the reticle, so as to calculate alignment parameters for transferring the pattern accurately to substrates. Tests are performed to detect possible contamination of the reticle or its support. Either operation proceeds with a warning, or the patterning of substrates is stopped. The test uses may use parameters of the alignment model itself, or different parameters. The integrity parameters may be compared against reference values reflecting historic measurements, so that sudden changes in a parameter are indicative of contamination. Integrity parameters may be calculated from residuals of the alignment model. In an example, height residuals are used to calculate parameters of residual wedge (Rx?) and residual roll (Ryy?). From these, integrity parameters expressed as height deviations are calculated and compared against thresholds.

Abstract: Ranking payment requests includes a peer-to-peer payment system that employs a server configured for receiving a payment request from a requester computing device; receiving location data of the requester network device; receiving a request for a ranking of payment requests; searching social network information of the payor for occurrences of the requester of the payment request; receiving location data of the payor network device, the location data comprising a location of the payor computing device and a location history of the payor computing device; searching a transaction history of the payor; ranking the payment requests based at least in part on one or more of the location of the requester, a strength of social network connections to the payor for each of the payment requesters, and number of previous transactions between the payor and the requester; and providing the ranking of the payment requests to the payor.