Abstract: Disclosed are a device and a method for anomaly detection of a gas sensor. The device includes a measuring unit that extracts a characteristic of a gas supplied from the outside, generates data based on the extracted characteristic, and outputs the data, and a data processing unit that receives the data, determines whether an error occurs in the data, and outputs an anomaly detection result based on a result of determining whether the error occurs in the data. The measuring unit performs a calibration operation or an environment adjusting operation before extracting the characteristic, and the data processing unit determines whether the error occurs in the data, based on machine learning.

Abstract: Systems, methods, and software can be used for identifying fracable areas. One example of a method includes receiving at least one of 3D petrophysical property and 3D geo-mechanical property in one or more areas. The method further includes receiving a model generating at least one hydraulic fracture parameter in a wellbore in the one or more areas. The method yet further includes training a machine learning model with at least one of the 3D petrophysical property and the 3D geo-mechanical property and the at least one hydraulic fracture parameter, and generating a fracability index for the wellbore based on the trained machine learning model.

Abstract: A computer-implemented method for estimating an influence of a magnetic resonance tomography sequence on at least one component in or on an examination tunnel of a magnetic resonance tomography system, wherein the method comprises inputting at least one gradient waveform of the magnetic resonance tomography sequence into a temperature model; calculating an increase in temperature caused by an application of the magnetic resonance tomography sequence in the at least one component using the temperature model, the temperature model configured to calculate the increase in temperature based on an estimation of eddy currents induced by the at least one gradient waveform in the at least one component; and outputting at least one of the calculated increase in temperature or a temperature achieved by the increase in temperature.

Abstract: The present disclosure provides methods, and systems for motion detection in magnetic resonance imaging. The method may include obtaining auxiliary magnetic resonance data of a target object by scanning the target object using an auxiliary sequence inserted in at least two imaging sub-sequences in a magnetic resonance imaging process of the target object, wherein the auxiliary sequence includes a plurality of auxiliary sub-sequences inserted at different positions in the at least two imaging sub-sequences; and determining, based on the auxiliary magnetic resonance data, motion state information of a region of interest of the target object.

Abstract: The provided is a magnetic resonance (MR) system with spatial selectivity and a working method thereof. The MR system includes a data display and processing module, a spectrometer with at least one transmission channel, at least one power amplifier, a transmit-receive (TR) switch, a preamplifier, multiple sets of coils, and a magnet module, where when a number of transmission channels of the spectrometer is not less than a number of coils, one power amplifier is connected to the TR switch, while other power amplifiers are correspondingly connected to other coils (2, 3, 4) except for a main coil (1); when the number of the transmission channels of the spectrometer is less than the number of the coils, an output terminal of the at least one power amplifier is first connected to at least one power divider and multiple phase shifters and then connected to the coil.

Abstract: An improved system and apparatus for testing thermal fluids in which the condition of a heat transfer fluid is measured. The system includes a sample vessel with a sample inlet for receiving a sample of heat transfer fluid from the heat transfer system and a sample outlet for returning the sample of heat transfer fluid to the heat transfer system, a heat transfer fluid condition monitor in fluid contact with the sample vessel measures one or more physical parameters of the heat transfer fluid and a control system which controls operation of the condition monitor and the sample vessel and which analyses the measured physical parameters of the heat transfer fluid. The system provides for predictive maintenance which is significantly more cost effective than preventative maintenance. It also ensures, as far as possible, that preventative maintenance can also be carried out while the system is running in normal production mode.

Abstract: Multi-echo radio frequency (“RF”) gradient based magnetic resonance imaging (“MRI”) is described. A gradient is established in the B1 RF field to enable B1-encoded pulse sequences, such as B1-encoded spin-echo pulse sequences. As a non-limiting example, the B1-field gradient can be established using a multi-echo frequency-modulated Rabi encoded echoes (“ME-FREE”) technique.

Abstract: A method for checking the functionality of an MR sensor within a local coil arrangement, the method including: acquiring at a first couch position a first measurement value from the magnetic field sensor outside the bore at the first measurement position of the local coil arrangement, and determining the first position information; acquiring at a second couch position a second measurement value from the magnetic field sensor during or after the conclusion of the couch's travel into the bore at a second measurement position of the local coil arrangement, which second measurement position differs from the first; determining a reference value, which specifies the expected main magnetic field at the second measurement position, determined from the first position information and the couch's displacement distance; and determining error information, which indicates a potential measurement error, by comparing the second measurement value with the reference value.

Abstract: An estimation apparatus comprises: a collection unit configured to collect a plurality of pieces of update information used for updating reference information, which indicates measurement values in accordance with a position or an attitude of a second portion against a first portion which is measured by at least one magnetic sensor while changing at least one of the position and the attitude of the second portion against the first portion over a predetermined movable range; a clustering unit configured to perform clustering on the plurality of pieces of update information according to a predetermined classification condition; and an updating unit configured to update the reference information based on at least one piece of update information included in a maximum class into which a highest number of pieces of information are classified among the plurality of pieces of update information.

Abstract: A system for recycling a mobile device. A system configured in accordance with one embodiment of the present technology includes an electrical connector and testing electronics. The electrical connector is configured to be electrically connected to a mobile device, and the testing electronics are configured to produce an electrical measurement by measuring an electrical attribute associated with a hardware component of the mobile device over the electrical connector. The system is further configured to valuate, identify, and/or authenticate the mobile device based at least in part on the electrical measurement.

Abstract: A flow cell for use in a fluid management and/or processing system is disclosed, said flow cell comprising a body having an inlet and an outlet and a fluid flow channel extending from the inlet to the outlet. Said body further comprises a receptacle comprising a chamber forming a part of the fluid flow channel, said chamber comprising a first opening for connecting a functional element to the flow cell such that the functional element is in contact with or exposed to a fluid flow passing through the fluid flow channel. A first tubular connector is arranged adjacent to the inlet. A second tubular connector is arranged adjacent to the outlet. The flow cell further comprises a functional element and a fluid flow path extending from the first tubular connector through the inlet, the body, the receptacle, and the outlet, to the second tubular connector.

Abstract: The present disclosure relates to an ultrasonic transmission apparatus and a wave control method, and more particularly, to an ultrasonic transmission apparatus and a wave control method which enable an ultrasonic wave to transmit through an obstacle.

Abstract: The disclosure includes systems and methods for identifying, using one or more processors, a plurality of properties, including the first set of properties that experienced hail damage and the second set of properties that did not experience hail damage; determining, using the one or more processors, a location and the first set of features for each property in the plurality of properties; training, using the one or more processors, a first damage frequency model; and validating, using the one or more processors, the first damage frequency model.

Abstract: A transduction unit of a non-contact human sleep physiological parameter detection sensor includes a circuit board, a piezoelectric film and conductive adhesives, wherein the piezoelectric film includes a film sheet and two electrodes, which are respectively arranged on two side faces of the film sheet; the piezoelectric film is attached to the circuit board; and the two electrodes of the piezoelectric film are respectively electrically connected to two exposed pad electrodes on the circuit board by means of the conductive adhesives.

Abstract: The present disclosure provides magnetic resonance phantom imaging phantoms and method of assembling thereof. In one aspect, a magnetic resonance imaging phantom can include a plurality of modular components. The plurality of modular components can include a first modular component, a second modular component, a shell, and a lid. The second modular component can be different than the first modular component. The shell can be structured to receive at least one modular component. The lid can be attachable to the shell to enclose the at least one modular component received within the shell.

Abstract: A battery diagnosing apparatus includes a profile generating unit configured to obtain a battery profile representing a corresponding relationship between voltage and capacity of a battery, and generate a differential profile representing a corresponding relationship between the voltage and a differential capacity for the voltage based on the obtained battery profile, and a control unit configured to receive the differential profile from the profile generating unit, determine a target peak in the differential profile, compare voltages of the determined target peak and a criterion peak of a criterion profile preset for the battery, and judge whether a side reaction occurs in the battery based on the comparison result.

Abstract: Disclosed herein is a medical system (100, 300) comprising a memory (110) storing machine executable instructions (120) and a convolutional neural network (122). The convolutional neural network is configured to receive as input a complex array (128) encoding a selection of at least one excitation field of view (324, 900) and in response output a radio frequency wave form (130) and multiple spatially selective gradient pulse waveforms (132). The convolutional neural network is a multi-task convolutional neural network.

Abstract: A flow sensor includes a flow tube in a form of a tube and a support cast around the flow tube. The support clamps the flow tube and the flow tube extends through the support. The flow sensor is formed by placing the flow tube in a tube cavity of a casting mold and pouring or injecting a liquid resin into a support cavity of the casting mold. The support is formed around the flow tube from solidifying the liquid resin in the support cavity of the casting mold. A temperature of the casting mold during formation of the support does not exceed a threshold temperature to avoid deformation of the flow tube. The flow sensor can also include at least one memory chip that stores calibration information associated with the flow sensor and connectors that allows a controller to read the calibration information from the memory chip.

Abstract: A biological availability testing device for simulating a structure of a respiratory system, wherein, including a respiratory pump, a diaphragm, a lung model, alveolar components, an upper respiratory tract, an inhalation component, a mucus replenishment device, a vibration cleaning device, a sealed chamber, a temperature controller of respiratory, a temperature controller of lung. The diaphragm is provided with a one-way valve, the sealed chamber is divided into an upper region and a lower region by the diaphragm. The lung model is connected to the alveolar components, and the lung model and alveolar components are located in the upper region of the sealed chamber. A lung fluid injection/an extraction port of the alveolar component is connected to the sealed chamber. The biological availability testing device has simulated the anatomical structure and physiological functions of the human respiratory system more realistic, and has improved the accuracy and reliability of test results.

Abstract: A stereoscopic identification method and apparatus for disturbance stress evolution process of underground cave surrounding rock perform a numerical inverse analysis of three-dimensional stereoscopic disturbance stress of a surrounding rock of the target underground cave on the basis of measurement values of three-component microseismometers and disturbance stress gauges. During the analysis, the overall prediction values are corrected from point to volume based on the measurement values to achieve a high-precision identification effect of the evolution process of the stereoscopic disturbance stress of the surrounding rock.