Abstract: Systems, devices, and methods for monitoring uterine contractions non-invasively using surface electrode measurements are described herein.

Abstract: This application includes an interactive control method and apparatus, a storage medium, and an electronic device. In this method, apparatus, storage medium, and device, a touch operation performed on a touch panel is recognized. A holographic projection device is configured to display a holographic projection-based virtual character. The touch panel is disposed on the holographic projection device. An interaction request is generated according to the recognized touch operation. The interaction request corresponds to an interaction with the holographic projection-based virtual character. Further the holographic projection-based virtual character is controlled to perform an interactive action associated with the interaction request.

Abstract: The present disclosure discloses a method for rapidly determining survival condition of spores. The method includes the following steps: S100: performing sterilization treatment on the spore; S200: preparing a spore suspension with the spore subjected to the sterilization treatment; S300: dripping an appropriate amount of the above prepared spore suspension onto a solid medium, wherein 4-MUG is contained in the solid medium; S400: observing the solid medium under an excitation light source after the spore suspension fully infiltrates into the solid medium; and S500: determining the number of viable spores according to the number of the observed fluorescent spots on the solid medium. The method is based on an ?-glucosidase test method and can rapidly determine activity of the spore and judge activity of a single spore.

Abstract: A high electron mobility transistor can include: a substrate; a channel layer located above the substrate; a potential energy barrier layer located on the channel layer; a drain electrode and a source electrode configured to at least extend downward to an upper surface of the potential energy barrier layer; a gate conductor located above the potential energy barrier layer; and a current limiting structure located on the potential energy barrier layer and extending upward along the surface of a first side of the source electrode to reduce the saturation current of the transistor, where the first side of the source electrode is a side near the gate conductor.

Abstract: The present disclosure discloses a method for measuring two-dimensional distribution of an industrial irradiation dose based on sprouting lag time of spores, and provides a film for measuring distribution of an industrial irradiation dose. The method includes the following steps: (1) manufacturing the film: spreading a layer of spore suspension flat on a plane of a carrier, and evaporating a suspension solvent to fix a layer of spore pixel surface on the plane of the carrier; covering the carrier with a glass lid to form a sprouting cavity to cover the spore pixel surface within the sprouting cavity; and providing the glass lid with a filling hole configured to add a sprouting agent; (2) obtaining a calibration curve; and (3) measuring the irradiation dose.

Abstract: A liquid level sensor having improved performance is disclosed as including a metal cover plate; a conductive pin, the conductive pin penetrating the metal cover plate; a plurality of electrode plates; a plurality of support plates supporting the electrode plates, so that a fixed interval is maintained between the plurality of electrode plates; each electrode plate of the plurality of electrode plates has a wing portion, the wing portion is connected to the conductive pin, and the wing portion extends outward from each electrode plate.

Abstract: Systems, devices, and methods for system for monitoring uterine contractions non-invasively using surface electrode measurements are described herein.

Abstract: A temperature sensor including a body made from a thermally and electrically conductive material, the body defined by a peripheral wall extending along a longitudinal axis from an open proximal end to a closed distal end. The proximal end defining an opening to an internal cavity of the body. A thermally responsive element including an outer surface, a temperature sensitive resistor electrically connected to a first lead, a second lead, and a connector block disposed substantially within the internal cavity. The inner surface of the peripheral wall defines the shape of a right circular cone at the distal end. The outer surface of the temperature sensitive resistor is in direct contact with the inner surface of the peripheral wall at the distal end. One of a thermally conductive and curable potting material and a thermally conductive grease disposed in the cavity and substantially surrounding the temperature responsive element.

Abstract: TA preparation method for off-the-shelf human umbilical cord-derived mesenchymal stem cells includes culturing an isolated umbilical cord tissue blocks to obtain P0 cells; carrying out passage on the P0 cells twice to obtain P2 cells, and cryopreserving the P2 cells; the cryopreserved P2 cells are subjected to thawing and passage twice to obtain P4 cells, and the P4 cells are cryopreserved; the cryopreserved P4 cells are subjected to thawing and passage once to obtain P5 cells, and the P5 cells are sequentially digested, washed and resuspended to obtain the human umbilical cord-derived mesenchymal stem cells. The present invention also adopts cryopreservation method to develop a cryopreservation preparation of human umbilical cord-derived mesenchymal stem cells. The cryopreservation preparation is convenient for storage and can be directly administered intravenously after thawing without changing the liquid, avoiding possible contamination risk during dispensing, and is more conducive to clinical use.

Abstract: This application includes an interactive control method and apparatus, a storage medium, and an electronic device. In this method, apparatus, storage medium, and device, a touch operation performed on a touch panel is recognized. A holographic projection device is configured to display a holographic projection-based virtual character. The touch panel is disposed on the holographic projection device. An interaction request is generated according to the recognized touch operation. The interaction request corresponds to an interaction with the holographic projection-based virtual character. Further the holographic projection-based virtual character is controlled to perform an interactive action associated with the interaction request.

Abstract: This application discloses an interaction method performed by a computer device. A three-dimensional virtual object is obtained; an optical signal of the virtual object is transmitted to a first side of an optical panel and then projected from the first side into a second side of the optical panel through the optical panel, so that an image of the virtual object is generated on the second side of the optical panel via negative refraction; when it is detected that a user performs a motion sensing operation on the image of the three-dimensional virtual object, updating the three-dimensional virtual object based on the motion sensing operation, to obtain an updated three-dimensional virtual object.

Abstract: A piston assembly for a compressor assembly is provided. The piston assembly has a piston and a valve sheet. The valve sheet is arranged at an end of the piston. The valve sheet has a valve sheet body with a mounting port, and a valve tongue connected to the valve sheet body. At least part of the valve tongue is arranged in the mounting port. At least part of a contour of the mounting port matches with a circumferential contour of one end of the piston close to the valve sheet.

Abstract: This application discloses an interaction method performed by a display device and the display device. A three-dimensional virtual object may be obtained; an optical signal of the virtual object is transmitted to a first region of a space and then projected from the first region into a second region of the space through the display device, so that an image of the virtual object is generated in the second region of the space that is outside the display device; when it is detected that a user performs a motion sensing operation on the image of the virtual object in the second region of the space, the virtual object is updated based on the motion sensing operation, to obtain an updated virtual object; and an optical signal of the updated virtual object is then used for generating an image of the updated virtual object in the second region of the space.

Abstract: This application includes an interactive control method and apparatus, a storage medium, and an electronic device. In these method, apparatus, storage medium, and device, a touch operation performed on a touch panel is recognized. A holographic projection device is configured to display a holographic projection-based virtual character. The touch panel is disposed on the holographic projection device. An interaction request is generated according to the recognized touch operation. The interaction request corresponds to an interaction with the holographic projection-based virtual character. Further the holographic projection-based virtual character is controlled to perform an interactive action associated with the interaction request.

Abstract: A method and a system for predicting a gas content in transformer oil based on a joint model are provided and belong a field of transformer failure prediction. The method includes the following: determining a type and a time series of gas to be predicted related to a failure, processing an original series by adopting empirical mode decomposition (EMD) and local mean decomposition (LMD) for a non-stationarity characteristic of a dissolved gas concentration series in oil; performing normalization on each sub-series component, dividing a training sample and a test sample; and establishing a deep belief network (DBN) prediction model for each of the sub-series components for training, performing superposition and reconstruction on the established DBN prediction model to perform characteristic extraction and classification on multi-dimensional data of the failure, evaluating prediction performance of the prediction model through calculating an error index.

Abstract: A gravimeter probe includes a spring structure, a proof mass, movable comb fingers, fixed comb fingers, and an outer frame. A fixed end of the spring structure is arranged on the outer frame and a free end thereof is connected to the proof mass. The movable comb fingers are arranged on upper and lower surfaces of the proof mass, and the fixed comb fingers are correspondingly arranged on the outer frame. Each of the movable comb fingers and the fixed comb fingers has a special-shaped comb finger structure. The special-shaped comb finger structure includes a comb finger bottom portion and a comb finger top portion, and the width of the comb finger bottom portion is smaller than the width of the comb finger top portion.

Abstract: Provided herein is a method for authenticating animal hide gelatins using peptide markers found animal hide gelatin hydrolysates. The method can be used to authenticate animal hide gelatins derived from donkey hide, horse hide, pig hide, and cattle hide.