Abstract: The present invention discloses a division method and system for distributed renewable-energy electricity generation clusters, where the method includes: obtaining electric power consumption-absorption data of the electricity-generation clusters; extracting and analyzing the absorbed electricity quantities of the corresponding target single electricity generators or the consumed electricity quantities of the corresponding target energy consumption nodes; constructing and determining consumption-absorption matching groups for a plurality of electricity generator sets and energy consumption districts according to distances from the target single electricity generators to the target energy consumption nodes, and executing division for the electricity-generation clusters. According to the present invention, energy waste can be avoided, and then management efficiency is increased.

Abstract: A lancet is provided. The lancet includes an inner sleeve, a needle core, and a housing extending along a longitudinal axis from a first side to a second side. The housing includes an inner sleeve guiding portion extending along the longitudinal axis from the first side towards the second side for guiding movement of the inner sleeve, and a first needle core guiding portion for guiding movement of the needle core. The inner sleeve, inside the housing for moving along the inner sleeve guiding portion, includes an inner sleeve needle outlet on a front end of the inner sleeve and a second needle core guiding portion. The needle core includes a needle core body for moving axially along the first needle core guiding portion, and a needle body. A spring is provided inside the housing to drive the needle core to move axially towards the inner sleeve needle outlet.

Abstract: The present disclosure relates to a blood collection pen, including: a guide sleeve (5); an inner core (2), a front end of which is provided with a needle mounting mechanism for detachably installing a blood collection needle, and a rear end of which passes through the guide sleeve; a needle retraction rod (3) provided through the inner core in an axial direction, a front end of the needle retraction rod being adapted for passing through an inner core hole at a front end of the inner core; wherein: the inn core includes an elastic structure which is adapted for abut against an inner wall of the guide sleeve in the axial direction; and the elastic structure is adapted to abut against the needle retraction rod in a transverse direction to prevent a part of the elastic structure that abuts against the inner wall of the guide sleeve from elastically deforming or moving laterally inward in a case that the blood collection needle is not installed at the front end of the inner core.

Abstract: The present invention discloses a hierarchical and graded source-network-load-storage multi-subject collaborative scheduling method and system, and relates to the technical field of new energy. The method includes: obtaining power supply data, obtaining electricity consumption data corresponding to each level of an urban area, and obtaining energy storage data of electricity storage devices; obtaining historical data sets, and analyzing the power supply data, the electricity consumption data, and the energy storage data to obtain estimated electric energy data; and calling the electricity storage devices in surrounding regions according to the adjusted secondary electricity consumption data of the urban area. The present invention may optimize and schedule on sources, networks, loads, and storage.

Abstract: The present invention discloses an intelligent control system for a distributed photovoltaic power generation cluster, and relate to the field of distributed energy technologies. The intelligent control system includes: a data acquisition module, used for acquiring demand basic data, supply basic data, and fault basic data respectively to form control basic data; a data analysis module, used for analyzing the control basic data to obtain control analysis data; a data processing module, used for processing the control analysis data to obtain a supply and demand balance reference value; and an intelligent control module, used for intelligently controlling the photovoltaic power generation cluster according to the supply and demand balance reference value.

Abstract: The present disclosure relates to a superconducting quantum chip connection structure used for connecting between superconducting quantum chips. The superconducting quantum chips comprise quantum substrates and quantum circuits. The connection structure includes: a connection portion for connecting the superconducting quantum chips; and a current conversion portion disposed on the quantum substrate for bonding and connecting the quantum circuits to the connection portion, so that the standing wave current of the standing wave mode used for communication at the bonding connection interface is close to zero. The present disclosure can not only significantly reduce channel loss and achieve stronger coupling, but also significantly reduce energy loss at the bonding connection interface, thereby reducing the impact on quantum state transmission efficiency.

Abstract: Disclosed is a lancet device including: a body, having a first end and a second end; a head cap, wherein the first end of the head cap is provided with a needle outlet hole, and the second end of the head cap is connected to the first end of the body; a tail cap, wherein the first end of the tail cap is connected to the second end of the body, and the tail cap is provided with a first spring connecting portion, or the first spring connecting portion is provided in the tail cap; a needle core assembly, at least a part of which is axially guided and located in the body, wherein the needle core assembly includes a needle seat and a blood taking needle, the blood taking needle is provided on the needle seat, and the needle tip of the blood taking needle is adapted to extend out from the needle outlet hole; a trigger assembly, having a driving core acting on the needle seat, wherein the driving core is adapted to drive the needle seat to move toward the needle outlet hole based on a trigger operation, and the driv

Abstract: The present invention discloses a division method and system for distributed renewable-energy electricity generation clusters, where the method includes: obtaining electric power consumption-absorption data of the electricity-generation clusters; extracting and analyzing the absorbed electricity quantities of the corresponding target single electricity generators or the consumed electricity quantities of the corresponding target energy consumption nodes; constructing and determining consumption-absorption matching groups for a plurality of electricity generator sets and energy consumption districts according to distances from the target single electricity generators to the target energy consumption nodes, and executing division for the electricity-generation clusters. According to the present invention, energy waste can be avoided, and then management efficiency is increased.

Abstract: New derivatives of human milk oligosaccharides and methods for preparing them are disclosed. Also described herein are hST6GALNAC V and hGCNT2-B variants, along with polynucleotides encoding the variants and host cells comprising the polynucleotides. Further provided herein are reaction mixtures comprising the hST6GALNAC V and hGCNT2-B variants.

Abstract: Provided is a lancet which comprises: a housing provided with an inner sleeve guiding portion and a first needle core guiding portion; an inner sleeve provided inside the housing, wherein the front end of the inner sleeve has an inner sleeve needle outlet, and the inner sleeve is provided with a second needle core guiding portion; a needle core adapted to move axially along the first needle core guiding portion; a spring provided inside the housing to drive the needle core, wherein the inner sleeve guiding portion has a radial rotation angle at a rotation guiding section thereof away from the inner sleeve needle outlet; by pressing towards the inside of the housing, the inner sleeve is guided by the rotation guiding section to rotate such that the first needle core guiding portion is aligned with the second needle core guiding portion in the radial direction.

Abstract: The present disclosure relates to an image data classification method, device and system, and relates to the field of computer technology. The method includes: inputting test image data into a neural network model trained by using an original training sample set for classification, and determining an image type to which the test image data belongs and a membership probability of the image data belonging to the image type; establishing an easy-to-classify data set, according to test image data with a membership probability greater than a first threshold; adding test image data in the easy-to-classify data set that has a classification accuracy rate less than or equal to a second threshold and a correct classification result to the original training sample set to generate an augmented training sample set; and using the augmented training sample set to train the neural network model so as to determine an image class.

Abstract: A method for preparing a shielded gate semiconductor device structure, and a shielded gate semiconductor device structure. The following steps are added in between source polycrystalline silicon deposition and gate polycrystalline silicon oxidation: removing, by etching, a first oxide layer and a second oxide layer that are in a middle upper space of a cell trench and on the surface of a semiconductor material layer, and a portion of the semiconductor material layer between trenches; removing, by etching, the gate polycrystalline silicon until a thickness of remaining gate polycrystalline silicon in the source lead-out region trench reaches a preset thickness; and selectively removing, by etching, remaining gate polycrystalline silicon in the source lead-out region trench until no gate polycrystalline silicon remains in the source lead-out region trench, and then removing the photoresist.

Abstract: The present disclosure relates to methods and apparatuses for processing an image, training an image recognition network and recognizing an image. The method of processing an image includes: obtaining a plurality of original images from an original image set, where at least one of the plurality of original images includes an annotation area; obtaining at least one first image by splicing the plurality of original images; for each of the at least one first image, adjusting a shape and/or size of the first image based on the plurality of original images to form a second image; obtaining respective positions of the at least one annotation area in the second image by converting respective positions of the at least one annotation area in the plurality of original images.

Abstract: An image processing method is provided, including: obtaining image data of a cavity wall of an organ; unfolding the cavity wall; and generating an image of the unfolded cavity wall. The unfolding of the cavity wall may include: obtaining a mask and a centerline of the organ; obtaining a connected region of the mask; dividing the connected region into at least one equidistant block; determining an orientation of the equidistant block in a three-dimensional coordinate system including a first direction, a second direction and a third direction; determining an initial normal vector and an initial tangent vector of a center point of the centerline; assigning a projection of the initial normal vector to a normal vector of a light direction of the center point; assigning the third direction or an reverse direction of the third direction to a tangent vector of the light direction of the center point.

Abstract: The present disclosure relates to a method for image processing. The method may be implemented on a computing device having at least one storage device storing a set of instructions, and at least one processor in communication with the at least one storage device. The method may include for each stage of at least one stage of a target disease, determining a type of one or more regions of interest (ROIs) corresponding to the stage; generating a first distribution image indicating the distribution of the one or more ROIs corresponding to the stage in a subject by processing a structural image of the subject based on the type of the one or more ROIs; and generating a lesion detection result of the subject by processing a functional image of the subject based on the first distribution image corresponding to the stage.

Abstract: The present disclosure relates to a blood collection device, including: a shell; a blade seat, arranged in the shell; an elastic component for providing an elastic force for pivoting the blade seat; a triggering portion, including an operating end and an abutting end, wherein the triggering portion has a first position and a second position for pivoting, the operating end extends to the outside of the shell, the abutting end is located in the shell, based on the operation of the operating end, the triggering portion is suitable for pivoting from the first position that prevents the blade seat from pivoting to the second position that allows the blade seat to pivot based on the elastic force of the elastic component, wherein: a cooperation column is arranged in the shell and is located at the upper side of the triggering portion spaced from the triggering portion; and an elastic arm is connected to the upper side of the triggering portion, the end part of the elastic arm includes a blocking portion, the end pa

Abstract: A disposable injection needle is provided. The disposable injection needle includes a needle holder, a housing, a sleeve, a core, and a spring. A first end of the housing is connected to a second end of the needle holder, a second end of the housing has a housing opening. A first end of the sleeve is located in the housing, a second end of the sleeve has a sleeve opening and protrudes from the housing opening. A first end of the core is disposed in the housing and sleeved outside the needle holder, and a second end of the core includes a core hole through which the first end of the tube needle extends. The spring provides an elastic force to axially move the sleeve toward outside of the housing. The sleeve retracts into the housing under an external force, to expose the tube needle through the sleeve opening.

Abstract: An image processing method is provided, including: obtaining image data of a cavity wall of an organ; unfolding the cavity wall; and generating an image of the unfolded cavity wall. The unfolding of the cavity wall may include: obtaining a mask and a centerline of the organ; obtaining a connected region of the mask; dividing the connected region into at least one equidistant block; determining an orientation of the equidistant block in a three-dimensional coordinate system including a first direction, a second direction and a third direction; determining an initial normal vector and an initial tangent vector of a center point of the centerline; assigning a projection of the initial normal vector to a normal vector of a light direction of the center point; assigning the third direction or an reverse direction of the third direction to a tangent vector of the light direction of the center point.

Abstract: A device for rapidly preparing ?-Si3N4 by gas-solid reaction and a method thereof, and relates to the technical field of recycling and reuse of waste fine silicon powder. The bottom of a stock bin communicates with a first opening and closing passage, a first connection passage, and the top of a first transitional bin; the bottom of the first transitional bin communicates with the first opening and closing passage, a second connection passage, and the top of a reaction bin; the bottom of the reaction bin communicates with a second opening and closing passage, the first connection passage, and the top of a second transitional bin; the bottom of the second transitional bin communicates with the top of a conveying passage through the first opening and closing passage; a material outlet of the conveying bin communicates with the collection bin.

Abstract: The present disclosure provides an opening-closing type microwave catalytic reaction apparatus, including a microwave system, a microwave cavity, a protective cover, a cooling system, and a vertical furnace tube, where two ends of the furnace tube are respectively stretched out of the microwave cavity, the microwave system includes a plurality of microwave transmitting units, and the microwave transmitting unit includes a microwave transmitter; the furnace tube is provided with a gas inlet on a top and a gas outlet on a bottom; a compression hinge and a cavity cover capable of being opened or closed are arranged on the microwave cavity, a convex edge plate is disposed at an edge of the cavity cover, the compression hinge can compress the cavity cover such that the convex edge plate is tightly attached to a concave edge plate on the microwave cavity, and the protective cover can cover the entire cavity cover.