Abstract: A tool posture control device includes a plurality of airbags, a gas supply module and a controller. A tool is allowed to be disposed among the airbags. A gas supply module connects the airbags. The controller is electrically connected to the gas supply module and configured to control the gas supply module to provide a plurality of gas to the airbags respectively according to a target bending angle value of the tool.

Abstract: The invention provides a detection air faucet, including a working chamber and a source port in communication with the working chamber. The working chamber is provided with a pressure sensing member for sensing a change in the pressure in the chamber, and the pressure in the working chamber is affected by an object connected to the source port. The pressure sensing member is provided with a working pressure range. Furthermore, the detection air faucet includes a working pressure maintaining mechanism implemented by a pressure release structure and a pressure maintaining structure. When the pressure in the working chamber exceeding the working pressure range, the working chamber discharges air by the pressure release structure, and when the pressure in the working chamber is lower than a pressure outside the detection air faucet, the air outside the detection air faucet entering into the working chamber by the pressure maintaining structure.

Abstract: The invention provides a carbon dioxide-based polyurethane elastomer with damping and anti-fatigue aging properties and its preparation method. It is obtained from Component A and Component B; Component A includes: PTMG-1000 45˜60 parts, carbon dioxide-based polyol 25˜30 parts, poly-DOPO-ITA-pentanediol ester 10˜20 parts, BDO 3˜5 parts, water 0.3˜0.5 parts, N-methylimidazole 0.5˜0.8 parts, bis(2-dimethylaminoethyl) ether 0.1˜0.2 parts, needle-shaped nano-titanium dioxide 0.5 parts, hindered phenol 0.2˜0.5 parts, dibutyltin dilaurate 0.1˜0.3 parts, strontium chloride 0.005˜0.01 parts, rhodium chloride 0.02˜0.03 parts, foaming agent 0.2˜0.5 parts; Component B includes: carbon dioxide-based polyol 50˜55 parts, MDI-50 45˜50 parts, organic zinc 0.01˜0.02 parts, organic bismuth 0.01˜0.02 parts.

Abstract: The present disclosure provides a complementary phototransistor pixel unit, a sensing and computing array structure and an operation method thereof. The complementary phototransistor pixel unit includes: a first photoelectric field effect transistor, which is a photoelectric field effect transistor based on an ultra-thin body and buried oxide layer; and a second photoelectric field effect transistor, the second photoelectric field effect transistor is a photoelectric field effect transistor based on an ultra-thin body and buried oxide layer, each of the first photoelectric field effect transistor and the second photoelectric field effect transistor is four-end device and has a gate electrode G, a source electrode S, a drain electrode D, and a well base electrode B, and the source electrode S or drain electrode D of the first photoelectric field effect transistor is connected to the source electrode S or drain electrode D of the second photoelectric field effect transistor.

Abstract: An antenna-integrated radio product and a method for producing the same is provided. According to an embodiment, the antenna-integrated radio product comprises an antenna module and a radio module. The antenna module comprises a plurality of antenna elements and a power divider. The radio module comprises a radio board and a plurality of radio components. The antenna module and the radio components are soldered to opposite sides of the radio board.

Abstract: Provided are a data processing system and method based on dynamic redundancy heterogeneous encoding, and a device. The method comprises: respectively performing error correction encoding on information to be processed and a processing rule, so as to form encoded information to be processed and an encoded processing rule; processing, by using the encoded processing rule, the encoded information to be processed, so as to obtain response data; and then performing error correction decoding on N pieces of response data, so as to obtain processing result information of the information to be processed.

Abstract: A prosthetic valve device with a segmented tapered structure provided by the present invention comprises an outer stent and an inner stent, wherein the outer stent comprises a discoid structure deployed on an atrial side, a annular structure adapted to an annulus side, and a split structure with different tapers deployed on a ventricular side; resilient clamping parts are distributed on a circumferential side of the outer stent depending on original valve leaflets; the inner stent is connected to the inside of the outer stent, and at least one valve body is provided in the inner stent. Barbs or protrusions selectively or globally distributed on the annular structure of the outer stent are also provided for anchoring a prosthesis to a natural cardiac valve annulus. The use of a tapered structure with a split body reduces outflow obstructions and improves fitness of prosthesis.

Abstract: For a set in sets of candidate factors, a classification model is trained to predict a computer problem possibility, an accuracy score of the classification model is determined based on model validation, and factor weights of the candidate factors in the set are adjusted based on the accuracy score. This processing is done with respect to all sets of candidate factors. A low accuracy classification model having an accuracy score lower than a threshold criterion is selected. A higher accuracy classification model having an accuracy score that is higher than the accuracy score of the low accuracy classification model is selected. The set of candidate factors used to train the low accuracy classification model is updated using one or more of the candidate factors used to train the higher accuracy classification model. The low accuracy classification model is updated based on the updated set of candidate factors.

Abstract: The present invention provides a target sequence of an RNA virus. The target sequence is a nucleic acid sequence fragment in the gene sequence in the RNA virus containing 20-40 bases and having not less than 95% similarity to genome sequence of human or related species such as livestock and poultry. The above-mentioned target sequence of the RNA virus is selected from SEQ ID NO. 1-SEQ ID NO. 615. The present invention also relates to a primer composition for constructing the above-mentioned target sequence, biomaterials such as antisense RNA related to the above-mentioned target sequence, and related uses such as design of a vaccine lacking the target sequence. The virus fragment with the above-mentioned sequence constructed in the present invention has the function of interacting with human genomic DNA and is similar to viral miRNA.

Abstract: Methods and systems described herein involve using long cell-free DNA fragments to analyze a biological sample from a pregnant subject. The status of methylated CpG sites and single nucleotide polymorphisms (SNPs) is often used to analyze DNA fragments of a biological sample. A CpG site and a SNP are typically separated from the nearest CpG site or SNP by hundreds or thousands of base pairs. Finding two or more consecutive CpG sites or SNPs on most cell-free DNA fragments is improbable or impossible. Cell-free DNA fragments longer than 600 bp may include multiple CpG sites and/or SNPs. The presence of multiple CpG sites and/or SNPs on long cell-free DNA fragments may allow for analysis than with short cell-free DNA fragments alone. The long cell-free DNA fragments can be used to identify a tissue of origin and/or to provide information on a fetus in a pregnant female.

Abstract: An array substrate, a display device, and a drive-for-heating method for the display device. The array substrate includes: pixel units on a first base substrate; a data line on the first base substrate; a touch signal line on the first base substrate; a heating element on the first base substrate, and configured to generate heat under driving of a drive-for-heating current; a common electrode on the first base substrate and reused as a touch electrode; and a pixel electrode on the first base substrate. The thin film transistor includes an active layer in a semiconductor layer and a gate electrode in a first conductive layer. The data line is in a second conductive layer, one of the pixel electrode and the common electrode is in a third conductive layer, and a layer where the heating element is located is between the semiconductor layer and the third conductive layer.

Abstract: A liquid crystal panel and a manufacturing method thereof, and a display apparatus are disclosed. The liquid crystal panel includes a liquid crystal cell, a first adhesive layer, a first polarizer, a second adhesive layer and an optical composite film; the first adhesive layer is located on a first side of the liquid crystal cell; the first polarizer is located on a side of the first adhesive layer away from the liquid crystal cell; the second adhesive layer is located on a side of the first polarizer away from the first adhesive layer; the optical composite film is located on a side of the second adhesive layer away from the first polarizer; the first adhesive layer adheres the first polarizer onto the liquid crystal cell, the second adhesive layer adheres the optical composite film onto the first polarizer, and the optical composite film includes diffusion particles.

Abstract: A digital twin-based edge-end collaborative scheduling method for heterogeneous tasks and resources includes the following steps: establishing an edge wireless network based on digital twin; constructing an edge-end collaborative scheduling problem prototype of the heterogeneous tasks and resources; performing problem conversion based on a multi-agent Markov decision process; constructing an Actor-Critic neural network model based on multi-agent deep reinforcement learning; performing offline centralized training of the neural network model by digital twin; performing online distributed execution of task offloading and computation and communication resource allocation by end devices to collaboratively process the heterogeneous tasks.

Abstract: A computer-implemented method, system and computer program product for improving accuracy and efficiency of auditing databases. A table, list or index of a database is analyzed to identify metadata, which includes time series data, user data, an Internet Protocol address and operation data. The identified metadata is associated with the corresponding record or row of the table, list or index from which the metadata was extracted. A determination is then made as to whether to record a raw data image associated with the record or row of the analyzed table, list or index based on the corresponding data operation. The identified metadata as well as the recorded data images, if any, are stored in a structured audit log. Auditing information is then obtained from a structured audit log based on matching the record or row identifier (RID) associated with the query with the RID associated with the structured audit log.

Abstract: A scanning probe microscope based on high-speed instantaneous force control is used scan a sample, which includes steps of acquiring an acting force signal between a probe unit and a sample; calculating a real amplitude signal according to the acting force signal; acquiring a set amplitude signal; acquiring the first sinusoidal signal; obtaining a target acting force signal according to the real amplitude signal, the set amplitude signal and the first sinusoidal signal; and scanning the surface of the sample in a target sample scanning mode according to the target acting force signal, wherein the target sample scanning mode represents the operating mode of scanning the surface of the sample under the indication of the target acting force signal. The method solves the problems of low peak force tapping frequency and limited scanning range, and realizes high-speed instantaneous force tapping and mechanical property measurement while ensuring the scanning range.

Abstract: Rendering digital twin include receiving metrics associated with a physical entity, the metrics received using an established real-time data synchronization protocol. The received metrics is analyzed. Based on the analysis of the received metrics, digital twin corresponding to the physical entity is updated, the digital twin being a virtual representation of the physical entity.

Abstract: Provided is a composition comprising aflibercept and a variant thereof, wherein the variant is a truncation variant with a truncated VEGF binding portion of aflibercept, and wherein the content of the truncation variant is less than or equal to about 20% by mass percentage. Also provided is a pharmaceutical formulation comprising the composition. Further, provided are a method for detecting the variant and use of the variant in quality inspection or quality control of an aflibercept-containing product.

Abstract: A battery cell includes a housing and a barrier member. The housing has an inner cavity, the housing has a first wall, and a weak portion is provided on the first wall. The barrier member is arranged in the inner cavity of the housing, and the barrier member is provided on at least part of the periphery of the weak portion.

Abstract: The present disclosure relates to electronic devices and communication systems. One example electronic device includes a power divider array that includes a general input port and a plurality of branch output ports. The power divider array has a filter mode and a power splitter mode that are switchable. In the power splitter mode, the power divider array is configured to implement power distribution of a signal from the general input port to the plurality of branch output ports. In the filter mode, the power divider array is configured to filter a signal transmitted between the general input port and the plurality of branch output ports.

Abstract: A system for purifying helium gas, a method, and an application. The system includes a first gas-liquid separation device, a primary helium extraction tower, a second gas-liquid separation device, a secondary helium extraction tower, and a nitrogen removal tower, which are in sequential communication. The first gas-liquid separation device performs first treatment to convert helium-containing natural gas into a first gas and first liquid phases; the primary helium extraction tower performs first distillation on the first gas and first liquid phases to obtain a second gas and second liquid phases; the second gas-liquid separation device performs second treatment to convert the second gas phase to a third gas and third liquid phase; the secondary helium extraction tower performs second distillation on the third gas and third liquid phases to obtain crude helium and a fourth liquid phase form which nitrogen is removed by the nitrogen removal tower.