Abstract: The present disclosure provides cytochrome P450 variants useful for carrying out in vivo and in vitro carbene insertion reactions. Methods for preparing carbene insertion products including cyclopropenes, cyclopropanes, bicyclobutanes, substituted lactones, cyclized compounds, and substituted amines are also described.

Abstract: The present invention discloses a trusted alliance block chain digital calibration certificate system and an operation method therefor. The system comprises: a distributed ledger system (10) of a distributed storage system based on a hyperledger fabric; a CA system (11) for management of all entity identity certificates and registration of identities in the system; a UTC time calibration server (12) for providing a UTC time calibration service for all block chain node servers of the system; and a digital calibration certificate subsystem (13) for generating, by means of alliance management, instrument organization management, and calibration institution management, a digital calibration certificate from calibration certificate data by a digital signature technology, extracting related entity information, and forming original information of multiple data blocks.

Abstract: A method includes: step 1: configuring a detection state to be a pure induction mode with no voltage, keeping this mode for t1ms; step 2: configuring the detection state to be a mode of positive and negative saturation excitation square waves, keeping this mode for t2 ms; step 3: when a duration of each mode ends, outputting a characteristic quantity based on sampling data through an algorithm module, and processing the characteristic quantity by a software to complete a state determination; and step 4: in case of a sudden large current, adjusting the detection state to a new detection mode, to respond to the sudden large current, and the software performing process after data collection is completed and a process performed by the algorithm module is completed.

Abstract: A nanogrid and a virtual inverter controller for the nanogrid are disclosed. The nanogrid includes at least one parallel branch, and at least one branch is equipped with a protector. At least one of the protectors is equipped with one virtual inverter controller. The virtual inverter controller includes a sensor component configured to detect at least one characteristic parameter on the branch, and a control component affecting the electrical connection state of the corresponding protector of the virtual inverter controller according to the characteristic parameter.

Abstract: A deep low-permeability gassy seam drilling-slitting-sealing-fracturing drilling device includes a drilling control system, a high-pressure water power system, a water pressure grading control system and a fracturing and sealing control system. The drilling control system adjusts a drilling direction a water supply pressure of the drill rod, the high-pressure water power system supplies high-pressure water with different pressures to the device, and the water pressure grading control system ensures that a water pressure for flushing drill cuttings is less than 5 MPa, a water pressure for slitting in a direction perpendicular to a length of the drill rod is 25-35 MPa, a water pressure for sealing with a borehole sealing capsule is 35-40 MPa, and a water pressure for further pressure relief and permeability increasing of a coal seam is 40-50 MPa. The fracturing and sealing control system controls borehole sealing and hydrofracturing operations.

Abstract: An audio output method applied to an electronic device having a proximity sensor, where the method includes obtaining proximity data of the proximity sensor when the electronic device is coupled to an audio output device and has an audio signal to output, outputting, by an earpiece of the electronic device, the audio signal when the proximity data meets a preset condition, determining a type of the audio output device, and selecting, based on the type of the audio output device, whether to output the audio signal using the audio output device. Hence, an earpiece is enabled to output an audio signal under a specific condition when an electronic device including a mobile phone is coupled to another audio output device, thereby improving user experience.

Abstract: A three-layer intelligence system architecture and an exploration robot are provided.

Abstract: This application discloses a display panel, a method for manufacturing a display panel, and a display device. The display panel includes an organic electroluminescent device. The organic electroluminescent device includes an emission layer. The emission layer includes a main body made of mesoporous silica and a dopant made of an organic small molecule luminescent material. The dopant is arranged in the main body.

Abstract: The present application relates to a light-emitting device, comprising an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer, and a cathode, which are stacked in sequence, wherein the light-emitting layer comprises N stacked light-emitting units; each light-emitting unit comprises a thermal activation delayed fluorescent material layer and a quantum dot material layer; the light emitted from the thermal activation delayed fluorescent material layer and the light emitted from the quantum dot material layer are synthesized into white light.

Abstract: The disclosure of the present invention relates to a method for preparing membrane and associated membrane and filter element. The method comprises providing a porous substrate having a plurality of pores; and applying a pre-filler solution to at least partially occupy the pores in the porous substrate. The membrane comprises a porous substrate and a filter layer formed on the porous substrate. The filter element comprises a core tube; and a membrane as prepared and rolled around the core tube.

Abstract: An information processing system comprises: an image acquisition device acquiring subject eye image data of a patient; a first information processing device storing the image data; a second information processing device obtaining the image data as a first diagnosis result using artificial intelligence; and a third information processing device obtaining the image data as a second diagnosis result by a radiologist, the image acquisition device: generates diagnosis method information indicating a diagnosis by artificial intelligence and/ or a radiologist; and transmits first transmission data including the image data and the diagnosis method information to the first information processing device, the first processing device: stores the image data when receiving the first transmission data from the image acquisition device; and transmits, based on the diagnosis method information, second transmission data including the image data to the second and/ or the third information processing.

Abstract: Provided are a phase shifter, a preparation method thereof, and an antenna. The phase shifter includes at least one phase shifting unit, and the phase shifting unit includes a microstrip line, a photo-dielectric layer, a ground electrode, and at least one light guiding structure; the microstrip line is located on a side of the photo-dielectric layer, and the ground electrode is located on a side of the photo-dielectric layer facing away from the microstrip line; the light-guiding structure at least partially overlaps the photo-dielectric layer, and the light-guiding structure is configured to guide light into the photo-dielectric layer.

Abstract: The present application provides a manufacturing method and system, a 3D printing apparatus and an image processing method. The manufacturing method comprises: coating an area, -to-be-formed, with a first material and a second material respectively, wherein the first material is a viscous material containing a ceramic component, and the second material comprises a pigment; carrying out selective light curing on a material layer containing the first material and the second material so as to form a cross-section cured layer belonging to a dental restoration blank; and repeating these steps, so that cross-section cured layers are accumulated layer by layer so as to manufacture the dental restoration blank. The present application achieves the object of improving the color effect during the manufacturing of the dental restoration blank.

Abstract: The present disclosure generally relates to nanostructure manufacturing. A method for fabricating an imprint template includes providing a first substrate including a first electrode layer on a first base layer and a plurality of first convex portions on a surface of the first electrode layer; providing a second substrate including a second electrode layer on a second base layer, a second resist layer on the second electrode layer, and a plurality of second convex portions on a surface of the second resist layer farthest from the second base layer, supplying electrical signals to the first electrode layer and the second electrode layer to produce an electric field between the plurality of first convex portions and the plurality of second convex portions; and forming the imprint template on the second substrate.

Abstract: A bioreactor vessel includes a bottom plate, a vessel body coupled to the bottom plate, the vessel body and the bottom plate defining an interior compartment therebetween, and a plurality of recesses formed in the bottom plate, each recess of the plurality of recesses being configured to receive a corresponding alignment pin on a bed plate for aligning the bioreactor vessel on the bed plate.

Abstract: The present application relates to a data transmission method, a system, a computer device, and a storage medium. Since a target extension unit is an extension unit connected to a service distal end unit of a matching user equipment set, when data is transmitted between a host unit and a user equipment, data only needs to be transmitted to a service distal end unit group connected to the target extension unit by means of the target extension unit, and data transmission is not needed to be performed with all distal end unit groups, so that a fronthaul bandwidth between the host unit and the extension unit/distal end unit is greatly decreased, thereby reducing design costs of a baseband of the host unit. In addition, the host unit pre-matches the user equipment which can share the same time frequency resource. Therefore, the same time frequency resource only needs to be allocated to the matching user equipment set, which greatly improves the utilization rate of an air interface resource.

Abstract: A bioprocessing system includes a first fluid assembly having a first fluid assembly line connected to a first port of a first bioreactor vessel though a first bioreactor line of a first bioreactor vessel, a second fluid assembly having a second fluid assembly line connected to a second port of the first bioreactor vessel through a second bioreactor line of the first bioreactor vessel, and an interconnect line providing for fluid communication between the first fluid assembly and the second fluid assembly, and for fluid communication between the second bioreactor line of the first bioreactor vessel and the first bioreactor line of the first bioreactor vessel.

Abstract: An illustrative method includes a data protection system identifying one or more attributes of a storage element within a storage system, determining, based on the one or more attributes of the storage element, a data protection policy for a dataset associated with the storage system, and applying the data protection policy to the dataset.

Abstract: Provided is a method for determining data storage is insufficient for a program. A processor may receive a set of marked data associated with a set of source code. The processor may identify a scope of the code associated with the marked data. The processor may generate a first set of instructions for taking a first snapshot of a variable storage space associated with the marked data when entering the scope and a second snapshot of the variable storage space when exiting the scope. The processor may generate a second set of instructions for comparing the first and second snapshots to determine a usage amount of the variable storage. The processor may generate a third set of instructions for performing an action in response to the usage amount of the variable storage space exceeding a threshold. The processor may compile the code into an executable.

Abstract: A deep low-permeability high gassy seam drilling-slitting-sealing-fracturing drilling device includes a drilling control system, a high-pressure water power system, a water pressure grading control system and a fracturing and sealing control system. The drilling control system adjusts a drilling direction a water supply pressure of the drill rod, the high-pressure water power system supplies high-pressure water with different pressures to the device, and the water pressure grading control system ensures that a water pressure for flushing drill cuttings is less than 5 MPa, a water pressure for slitting in a direction perpendicular to a length of the drill rod is 25-35 MPa, a water pressure for sealing with a borehole sealing capsule is 35-40 MPa, and a water pressure for further pressure relief and permeability increasing of a coal seam is 40-50 MPa. The fracturing and sealing control system controls borehole sealing and hydrofracturing operations.