287results about How to "Efficient inspection" patented technology

The invention discloses a data storage method of a cloud storage system, which comprises the steps of: carrying out coding fragmentation on a file on the basis of a buffer zone erasure code technology to obtain data fragments and check fragments; processing the data fragments and the check fragments to obtain a check identification; storing the check identification in an index server; requesting storage resource information to the index server according to the quantity of the data fragments and the check fragments; sending the data fragments and the check fragments to a plurality of storage nodes according to the storage resource information; judging whether needing to carry out integrity check on the data fragments and the check fragments in the storage nodes; if needing to carry out integrity check on the data fragments and the check fragments in the storage nodes, sending the data integrity check information to the storage nodes, receiving an identification information set returned by the storage nodes, and judging whether data storage errors or data losses exist according to the identification information set, if yes, coding for recovering the data, and sending the recovered data to the corresponding storage nodes.

In a medical imaging system including plural imaging section, detection accuracy and examination efficiency for breast cancer are improved by setting appropriate imaging condition. The system includes: a first imaging section for imaging an object to be inspected by using one of radiation, ultrasonic waves, nuclear magnetic resonance, positron, infrared light and fluorescence to generate a medical image; a second imaging section for imaging the object by using another one of radiation, ultrasonic waves, nuclear magnetic resonance, positron, infrared light and fluorescence to generate a medical image; and an imaging condition setting section for setting imaging condition in the second imaging section based on the medical image generated by the first imaging section.

In a method for implementation of a magnetic resonance examination of a patient with an imaging medical magnetic resonance apparatus with a movable patient bed, for of an examination volume of the patient that is larger than an acquisition volume of the magnetic resonance apparatus, anatomical patient information and second technical information for setting the magnetic resonance apparatus are acquired dependent on the position of the patient bed from magnetic resonance signals acquired in a low-resolution calibration measurement (scan). A first group of measurement protocol parameters is generated from the patient information and a second group of measurement protocol parameters is generated from the technical information, to generate a measurement protocol for a subsequent high-resolution magnetic resonance examination.

In an image-processing method for the detection of radiological signs in series of 3D data, an algorithm is used to detect radiological signs in a digital volume according to their contrasts. This algorithm is applied to reconstructed slices or directly to the series of projections. This algorithm is made by means of linear differential filters for signal analysis. It is used to color or enhance the intensity of the detected radiological signals according to the degree of malignancy.

A method of performing a non-destructive examination of a piece of material, having the steps of providing an angle beam wedge and at least two transducers placed upon the wedge, wherein the transducers are placed in a phased array, placing the wedge upon the piece of material to be examined, producing a guided wave into the piece of material to be examined, wherein the guided wave is placed into the material through a synthetically changed incident angle, receiving the guided wave from the piece of material, and determining one of a presence of defects and lack of defects in the piece of material from the received guided wave. Transducers used may include 360 degree guided wave, radial polarized units, parallel shear units for shear horizontal activation and guided wave wheel probes.

An ultrasound probe of the type having, successively from its head to tail end, an ultrasound scanner head assembly accommodating an ultrasound transducer element rotatably within an end cap, an elongated flexible cord having a flexible transmission shaft of tightly wound metal wire coils within an outer sheathing tube, and a tail end connector. The ultrasound probe is characterized by a joint construction for the ultrasound scanner head, including: a metallic joint member axially extended from the end cap of the ultrasound scanner head assembly on the proximal side thereof and joining the ultrasound scanner head with an outer sheathing tube of the flexible cord by fitting engagement therewith; a cylindrical rotating member located internally of the joint member and the outer sheathing tube, and connecting a fore end portion of the flexible transmission shaft with a rotary support member of the ultrasound transducer element at a position axially on the proximal side of a rear end of the joint member; and an insulating sleeve member fitted on the cylindrical rotating member and keeping the cylindrical rotating member out of contact with the metallic joint member for electrical insulation purposes.

Automated determination and setting of an ultrasound system transmit power level is provided for contrast agent imaging. Low mechanical index imaging of contrast agents allows substantially continuous imaging of contrast agents without destruction. By comparing data associated with different transmit power levels, different delays between acquisition or different acquisition sequences, a contrast agent imaging transmit power generally minimizing destruction of contrast agents and maximizing signal-to-noise ratio is automatically determined.

The present invention obtains certainty of the blood-flow velocity information that is estimated in the blood-flow mapping display. The signal processor in the ultrasound imager is provided with a Doppler velocity operation part configured to calculate a Doppler velocity from echo signals by using the Doppler effect, and a first blood-flow velocity operation part configured to generate a tissue tomographic image from the echo signals and calculate a blood-flow velocity of a predetermined portion from a motion of the tissue, on the basis of the tissue tomographic image. It is further provided with a second blood-flow velocity operation part configured to calculate the blood-flow velocity of the predetermined portion by using the Doppler velocity calculated by the Doppler velocity operation part. Then, a coincidence degree is calculated between the blood-flow velocity calculated by the first velocity operation part and the blood-flow velocity calculated by the second velocity operation part, as to the predetermined portion, and according to the coincidence degree, certainty / reliability of the blood-flow velocity information is obtained and displayed.

The invention discloses an image exposure processing system for a capsule endoscope system. A signal input end of a metering module is connected to an image, and a signal output end of the metering module is connected with a signal input end of an exposure judgment module; a signal output end of the exposure judgment module is connected with a signal input end of a brightness judgment module; a signal output end of the brightness judgment module is connected with a first signal input end of a gear calculation module; a signal output end of the gear calculation module is connected with a signal input end of a parameter adjustment module; and an image sensor signal acquisition amplifier gain and an image exposure time value output end of the parameter adjustment module are transported to a lighting device and a camera device, and an adjusted image sensor signal acquisition amplifier gain and an image exposure time gear value output end of the parameter adjustment module are connected to a second signal input end of the gear calculation module. The image exposure processing system and the method for the capsule endoscope system provided by the invention automatically process images which are too bright or too dark during the shooting process, and make an inspection process more efficient.

The invention discloses an integrity check method for a large video file. A data file is subjected to integrity check based on a mini disk (MD) 5 algorithm. The method comprises the following steps of: extracting a target MD5 fingerprint of the large video file, comparing the target MD5 fingerprint with a source MD5 fingerprint and determining that the file integrity condition is normal if the target MD5 fingerprint and the source MD5 fingerprint are the same, and is characterized in that: the large video film target MD5 fingerprint extraction comprises the following steps of: microchannel memory mapping, intelligent data slicing, parallel extracting of MD5 fingerprints of the sliced data and MD5 fingerprint synthesizing. The integrity check method has the advantages of overcoming the defects of long consumed time and low efficiency of checking the large video file by using the conventional MD5 code, rapidly and efficiently checking whether the file has the problems such as packet dropout, tampering, virus infection and the like and ensuring the integrity and usability of the data file.

A power line foreign body detection method based on light convolutional neural network in low altitude aerial images belongs to the field of computer vision, and a real-time detection method for powerline foreign body in aerial images of unmanned aerial vehicles is studied. Firstly, a light power line detection model is constructed by using convolution neural network, and the depth characteristics of power lines in aerial images are calculated; then a multi-target power line foreign body detection model is constructed by using convolution neural network, and the prediction value of multi-scale targets is calculated by using depth features of convolution layers with different lengths and widths; finally, the power line detection model is used to filter the video frame without a power line,and the multi-target power line foreign body detection model is used to realize the real-time detection of power line foreign body in low-altitude aerial images on the video where a power line is detected.

The invention relates to a method for detecting a raltitrexed enantiomer by adopting a capillary electrophoresis method which calculates the limitation of the raltitrexed to the enantiomer in the raltitrexed according to a self-contrast method of main components by separating the raltitrexed and the enantiomer through the capillary electrophoresis; uses a solution with the volume ratio of 1 to 1 between methanol and water for preparing a sample solution; an electrophoresis buffer liquid of the capillary electrophoresis is Tris-H3PO4 with a pH value between 6.0 to 10; adds a chiral selection agent and sodium dodecyl sulfate into the buffer liquid. The method overcomes the defects that the use of a chiral flowing phase and a chiral column for separating the enantiomer is difficult and has higher cost because the molecule structures of the raltitrexed not only comprises carboxyl, but also comprises amidogen. The method has the advantages of good separating effect, no pollution, low cost and being suitable for checking the raltitrexed enantiomer.

The invention is concerned with a method of creating and producing examinations. The method is closely connected with a computer-based exam creation software that provides the user or instructor with a suite of tools, allowing the design of exam questions and solutions for a particular course. The system allows allow the interaction of various instructors and other participants in the examination creation process. In order to facilitate the educational process, the invention provides the user with a easy-to-use interface to create new examination questions and solutions. The system stores the questions and solutions in a database. Other professors, instructors, or others can use the system to review questions posed by other instructors so as to have peer review. The questions are labeled with various parameters. The instructor can then choose several parameters for the exam which he / she would like to create. The system will then generate an exam in the format desired for the particular class the exam is being created for. The ability of professors to peer review, share exams from a database, and have logic on how to construct the exam improves the educational process. Firstly, it increases the standardization of exams across courses and professors in university, primary or secondary schools, or elsewhere. Secondly, it adds a robustness to exams through peer review. Thirdly, if offers efficiency to professors in terms of exam production. Finally, the sharing of exam questions improves the quality of examinations for students. The system can also be used for other organizations or entities to share and distribute questions and solutions, including publishers, electronic devices, and television shows.

The invention provides an item display auxiliary management system, comprising: a personal digital assistant (PDA), a background server and electronic labels. The PDA is used to: obtain a shelf identifier and send the shelf identifier to the background server; receive and show item display information to a user; and send electronic label identifiers on a shelf to the background server in a predetermined order after the electronic labels are set on each layer of the shelf by the user according to the number of electronic labels on each layer of the shelf in the item display information. The background server is used to: receive the shelf identifier, find the item display information according to the shelf identifier, and send the item display information to the PDA; and receive the electronic label identifiers, determine corresponding item information according to the receiving order of the electronic label identifiers, and send the corresponding item information to the electronic labels. The electronic tags are used to: display the corresponding item information. When the item display auxiliary management system provided by the invention is used for displaying items, the paperlessoperation of the item display can be realized, the time is saved and the cost is reduced.

The invention discloses an odd-finding-recommendation-oriented interest model updating method, which is used in a portal personalized recommendation service system; the invention is characterized in that: the odd-finding-recommendation-oriented interest model updating method comprises a long-term interest model modification rule LMR, a long-term interest model update rule LUR, a short-term interest model structure / update rule SUR, and an interest drifting detection rule IDR. The user interest model updating method of the invention can partly update interest description of the user, obtain the short-term interest situation of the user easily, satisfy the need of the odd finding recommendation, and realize the efficient and accurate updating of a user interest model; and moreover, the method can identify and process noise data, and avoid influences of the noise data on the stability of the user interest model when quickly responding to interest drifting at the same time. The updating method of the invention can identify and process the noise data, thus improving the accuracy and the stability of the user interest model.

A method of performing a non-destructive examination of a piece of material, having the steps of providing an angle beam wedge and at least two transducers placed upon the wedge, wherein the transducers are placed in a phased array, placing the wedge upon the piece of material to be examined, producing a guided wave into the piece of material to be examined, wherein the guided wave is placed into the material through a synthetically changed incident angle, receiving the guided wave from the piece of material, and determining one of a presence of defects and lack of defects in the piece of material from the received guided wave. Transducers used may include 360 degree guided wave, radial polarized units, parallel shear units for shear horizontal activation and guided wave wheel probes.

An x-ray device comprises means for the production of at least one standard projection image of the object in which presumed suspect zones corresponding to radiological signs are represented by markers. The device comprises means for the production of a digital volume of markers in which 3D markers are created in order to represent presumed suspect zones of the object. It also comprises means of re-projection of the 3D markers in the standard projection image in order to confirm the presence of the markers or eliminate or add the markers of the projection image is necessary.

The invention provides an inspection device and inspection method for efficiently inspecting an object to be inspected, such as an printed circuit board, etc. The printed circuit board moves from a move-in unit (10) to an inspection unit (30), performs orderly shooting, turning for upper surface, shooting for lower surface, then moves to a move-out unit (20). The printed circuit board moves between the move-in unit (10), the inspection unit (30) and the move-out unit (20), by using two arms (720, 740) configured to be a right angle, simultaneously the printed circuit board moves from the move-in unit (10) to the inspection unit (30), and from the inspection unit (30) to the move-out unit (20). Groove, formed on a carrier (340) for carrying the printed circuit board in the inspection unit (30), is used for inserting a finger part (510) for turning the printed circuit board, therefore the printed circuit board is lifted from the carrier (340) or carried on the carrier (340) by the movement of the finger part (510) in the groove.

The invention relates to an auxiliary assessment method for prognosis of nasopharynx cancer based on enhanced MRI radiomics. The auxiliary assessment method comprises the steps of: (1), performing MRIimage processing; (2), extracting imaging features; (3), screening the imaging features; (4), establishing a radiomics scoring formula; (5), screening clinical risk factors; and (6), establishing a prognostic survival model: establishing a prognostic observation model through combination of a radiomics score and the clinical risk factors of a patient with nasopharynx cancer, performing qualitative and quantitative prediction on the PFS (progression free survival) of the patient, and furthermore, assessing the performance of the prognostic survival model. The auxiliary assessment method in theinvention has little harm to the image examination of the patient; qualitative and quantitative analysis on the survival time of a specific patient is carried out; therefore, a doctor is assisted tomake an individualized treatment and follow-up visit scheme; furthermore, the doctor is assisted to assess the survival and recurrence time of the patient; simultaneously, the performance of the obtained prognostic survival model is verified; and thus, the accuracy of a prognostic prediction model is ensured.

In a method for the obtaining a tomosynthesis image for a more selective detection of radiology signs, a dose distribution strategy is proposed. The strategy is defined as a function of a substantially uniform depth-of-focus for a variety of sizes and classes of radiology signs. This strategy is coupled with a digital filtering aimed at ensuring optimum propagation of the signal-to-noise ratio beyond the frequency spectrum. This digital filtering is done by means of a class of adaptive filters required to control the propagation of the noise during the reconstruction. The filter to be applied to each projection of the X-ray tube (4) depends on the dose assigned to this projection.

The invention discloses a steel wire rope traction type underground coal mine belt type conveyor circular detecting system. The system comprises an aerial cableway system, a rope clip, belt type conveyor state monitoring devices, and a monitoring background system. A power grid carries out power-on to drive the aerial cableway system to operate, the belt type conveyor state monitoring devices on the system stably carry out polling along the position above a conveying belt of a belt type conveyor, a storage battery of each belt type conveyor state monitoring device is only used for providing electric energy of sensing and communication equipment, use duration of the batteries is prolonged, the belt type conveyor state monitoring devices are mutual base stations, h a wireless radio frequencymodule mounted on the conveying belt can carry out real-time positioning on a polling site, various data information can be uploaded, positions of slipping, off tracking, coal stacking, belt breaking, firing or carrier roller faults of the belt type conveyor can be accurately judged, a polling robot can carry out independent polling and real-time communication, and in the polling process, the belt type conveyor can be subjected to intelligent fault diagnosis.

An ultrasound image diagnosis apparatus executing lighting-on and lighting-off of a lighting device by detecting an identification (ID) data of a probe or an operation on an operation panel. The ultrasound image diagnosis also includes a lighting device configured to identify a usage state or non-usage state of the ultrasound probe by a lighting color. While an ultrasound examination is performed in a dimly-lit room, a visibility of an ultrasound probe connector can be increased.

There is provided a metal detection device capable of effectively detecting a metal mixed in food or the like by generating AC magnetic field simultaneously tuned to respective frequencies by a single transmission coil in response to frequency components of different frequencies without switching an element by a switch or the like. Constituent elements constituting magnetic field generation means (2) are connected so that a transmission coil L1 and a capacitor C1 resonate in the first frequency F1. Moreover, constituent elements are connected so that the transmission coil L1 and a capacitor C2 resonate in the second frequency F2. Furthermore, constituent elements function so as to effectively separate the capacitor C1 and capacitor C2 so that they do not interfere at least in the same frequency.

Automated determination and setting of an ultrasound system transmit power level is provided for contrast agent imaging. Low mechanical index imaging of contrast agents allows substantially continuous imaging of contrast agents without destruction. By comparing data associated with different transmit power levels and spatial locations, different delays between acquisition or different acquisition sequences, a contrast agent imaging transmit power generally minimizing destruction of contrast agents and maximizing signal-to-noise ratio is automatically determined. By using contrast agent specificity for setting the transmit power in addition or alternative to destruction of contrast agents, harmonic imaging may be improved.