Abstract:
The present disclosure relates to the performing spectral calibration of a CT imaging system. In accordance with certain embodiments, spectral calibration phantoms are scanned while positioned on a table in the imaging volume of the CT imaging system. The scans of the calibration phantoms, in conjunction with air sans performed on the CT imaging system, are used to derive information about the deviation of the measured phantom scans from an ideal. The deviation information is in turn used to derive spectral calibration vectors that may be used with the CT imaging system.
Abstract:
A method for deriving data provenance information corresponding to a workflow process having lower-level workflow processes includes deriving internal provenance information for data pertaining to at least one of the lower-level workflow processes, identifying data objects that are shared between at least a pair of lower-level workflow processes to derive external provenance information for the identified data objects, in response to a user-submitted query, using the internal and external provenance information to retrieve the data provenance information for the workflow process, and outputting the derived data provenance to a user.
Abstract:
Methods, systems, and apparatus, including computer program products, for aligning user interface elements arranged in multiple columns in a user interface. In one aspect, a method includes identifying a group of columns in a user interface, where each column in the group includes one or more user interface elements arranged in a sequence from a top of the column to a bottom of the column; comparing heights of first sequences of one or more user interface elements in a first column to heights of second sequences of one or more user interface elements in a second column; and adjusting the heights of the first sequences to align the first sequences with the second sequences by adjusting the heights of user interface elements in the first sequences, where adjustments to each user interface element in the first sequences are each less than a threshold adjustment value.
Abstract:
A method for preparing hydroxymethylfurfural, which includes: a) mixing and dissolving triose or its derivatives and solvent 1 to obtain the first reaction mixture; b) reacting the obtained first reaction mixture with Alkaline Catalyst 1 to condense into hexose; c) mixing and dissolving the resulting hexose and solvent 2 to obtain the second reaction mixture; d) adding acid catalyst 2 to the second reaction mixture, then heating the second reaction mixture at 80˜280° C. to form the third reaction mixture including hydroxymethylfurfural; e) obtaining the hydroxymethylfurfural separating by separating from the third mixture. The method is a new synthetic way for preparing 4-hydroxymethylfurfural and 5-hydroxymethylfurfural.
Abstract:
The present disclosure describes a community model based point of interest local search platform. Specifically, logs of users that store selections while accessing a point of interest application are loaded into a database. The logs are of users that have similar demographic or other community attributes. The logs are then mined for contextual parameters, including, but not limited to time of day, day of week, distance, activity, environment, popularity, and personal preferences. The point of interest selections are then mapped to a multi-dimensional map where each dimension corresponds to a contextual parameter. Clusters are evaluated by a classifier and classes of users of the community are identified. When a user then queries the community model based point of interest local search platform, contextual parameters are submitted with the query, relevant classes identified, and the corresponding point of interest information is displayed to the user.
Abstract:
A phonetic suggestion engine for providing word or phrase suggestions for an input letter string initially converts an input letter string into one or more query phoneme sequences. The conversion is performed via at least one standardized letter-to-sound (LTS) database. The phonetic suggestion engine further obtains a plurality of candidate phoneme sequences that are phonetically similar to the at query phoneme sequences from a pool of potential phoneme sequences. The phonetic suggestion engine then prunes the plurality of candidate phoneme sequences to generate scored phoneme sequences. The phonetic suggestion engine subsequently generates a plurality of ranked word or phrase suggestions based on the scored phoneme sequences.
Abstract:
The present invention discloses a method for indicating a modulation mode in HSDPA, comprising the following steps: a NodeB receiving capability information reported by a terminal, if determining that the terminal supports 64QAM modulation mode, determining a transmission block size, a modulation mode and code channel resource to be indicated based on an capability constraint condition and the capability information, and if the determined modulation mode is the same as a basic modulation mode satisfying requirement of the transmission block size, setting modulation mode information of a HS-SCCH as 0, otherwise setting the modulation mode information of the HS-SCCH as 1, and then sending the HS-SCCH to the terminal. Application of the present invention is compatible with a UE device which supports or does not support 64QAM high order modulation, without changing the current frame structure of the HS-SCCH, thereby achieving functional support of the 64QAM modulation mode.
Abstract:
A radiation detector comprises an infrared radiation sensing micro mirror array, where each micro mirror is supported with a deformable cantilever beam having an organic layer for increased dynamic range. The radiation detector includes two or more sources of optical radiation for irradiating the micro mirror array, an image sensor array for receiving optical reflection from the micro mirror array, and an aperture plate for (i) spatially restricting optical radiation reaching the micro mirror array and (ii) spatially restricting reflected optical reflection reaching the image sensor array.
Abstract:
The present invention provides improved optical switches in which only a spatial beam shifting of a small free space offset is required to direct optical pathways between plural fiber ports. This is achieved by spacing two fibers closely and collimating their beams with one imaging lens for compactness. Advantageously, the inventive switches incorporate beam correcting devices to render the beam propagations parallel, allowing light beams to be efficiently coupled into two fibers that share a single lens with substantially improved stability.
Abstract:
The present invention provides an improved optical wavelength switch in which no mechanical movement is required to direct optical pathways between several fiber ports. The inventive three-fiber port device divides incoming optical signals into two subsets of spectra and selectively directs them into two output ports in response to an electrical control signal. In the inventive switch, an optical signal is spatially split into two polarized beams, by a birefringent element, which thereafter pass through a series polarization rotation elements and recombine into output fibers, achieving polarization independent operation. Advantageously, the inventive switch incorporates two-stage polarization rotations to improve isolation depth, as well as temperature and wavelength independence. The invention also incorporates light bending devices to allow two fibers to be coupled to the light beams via a single lens, thereby achieving small beam separation for compactness. Switches rely on electromagnetically or electro-optically switching the beam polarizations from one state to another to rapidly direct the light path.