Abstract: Provided is a multi-tow carbon fiber spreading and pre-impregnation system, which is used to solve the technical problems of large thickness, high porosity and the like of a prepreg tape product caused by low spread ratio and insufficient pre-impregnation in the production process of existing thermoplastic prepreg tapes. The system includes a filament release module, a filament doubling module, an airflow spreading module, a process deviation correction module, a traction module, a slurry impregnation module, an infrared melting module, a hot-pressing shaping module, a floating roller module, a cutting module, a leftover collecting module, a winding deviation correction module and a winding module which are sequentially arranged along a feeding direction. The filament release module includes at least two filament release assemblies, and carbon fibers are placed on the filament release assemblies.

Abstract: The present application provides a speaker including a frame having an accommodation space, a vibration system, and a magnetic circuit system. The magnetic circuit system includes a yoke, a main magnet, and an auxiliary magnet spaced apart from the main magnet. The vibration system includes a diaphragm and a voice coil. The diaphragm includes a dome and a suspension spaced and surrounding the dome. The auxiliary magnet includes a first auxiliary magnet and a second auxiliary magnet. The speaker of the present application has one FPC board disposed between the frame and the first auxiliary magnet, and a width of the second auxiliary magnet is greater than a width of the first auxiliary magnet, which effectively improves the acoustic performance of the speaker.

Abstract: The present application provides a speaker having a frame having an accommodating space, a vibration system accommodated in the frame, and a magnetic circuit system. The vibration system includes a diaphragm and a voice coil. The diaphragm includes a dome having a planar portion perpendicular to a vibration direction and a side surface portion extending from an edge of the planar portion toward the magnetic circuit system. The speaker further comprises a Flexible Printed Circuit (FPC) board electrically connected to the voice coil. The speaker in the application effectively avoids the problem in the related art where the magnetic circuit system occupies less space and thus has a small volume, thereby improving the acoustic performance of the speaker.

Abstract: Use of a pyrido[1,2-a]pyrimidone analogue. Specifically disclosed is use of a compound I or a pharmaceutically acceptable salt thereof in the preparation of a medicament for treating and/or preventing cancers in the digestive tract system. The compound I or the pharmaceutically acceptable salt thereof has good antitumor activity against one or more of head and neck cancer, hepatocellular cancer, colorectal cancer, esophageal cancer, gastric cancer and nasopharyngeal cancer.

Abstract: The present disclosure provides a rectifier, an inverter, and a wireless charging device. The rectifier includes a signal conversion unit and a switchable capacitor unit that are mutually coupled. The switchable capacitor unit is configured to switch a rectification mode of the rectifier. The rectification mode may include but is not limited to any one of the following: a voltage multiplier rectification mode or a full-bridge rectification mode. Therefore, a variable dynamic range of the output voltage of the rectifier provided in embodiments of the present disclosure is extended.

Abstract: A battery pack assembly for an electrified vehicle includes a main body assembly, a top cover and a first spacer. The main body assembly houses a plurality of battery modules therein, the plurality of battery modules having cell supervisory circuits. The top cover is coupled to the main body assembly, the top cover having an interior surface that faces the plurality of battery modules. The first spacer is disposed on the interior surface of the top cover and occupies a space generally between the top cover and at least one battery module of the plurality of battery modules. The first spacer is configured to engage a battery module of the plurality of battery modules during an impact event that deforms the top cover toward the battery modules.

Abstract: A targeted nanoscale particle is bound to the outer surface of the targeted cell, and is composed of a plurality of proteins interconnected via a first binding site. The targeted nanoscale particle further comprises a second binding site, and is bound to the outer surface of a target cell via the second binding site. In an exemplary embodiment, the targeted nanoscale particle can promote the interaction between the two types of cells by simultaneously binding to a chimeric antigen receptor T cell and a leukemia cell, thereby promoting the recognition and killing of the leukemia cell by the chimeric antigen receptor T cell. In addition, the internal cavities of the proteins in the targeted nanoscale particle provide space for loading of a chemotherapeutic drug, thus realizing the combination therapy of the chimeric antigen receptor T cell and other therapies while loading the drug.

Abstract: A UAV delivery control system is disclosed. Sensors detect operation parameters associated with the UAV as the UAV maneuvers along an airborne delivery route. A UAV operation controller monitors UAV route parameters as the UAV maneuvers along the airborne delivery route. The UAV route parameters are indicative as to a current environment of the airborne delivery route that the UAV is encountering. The UAV operation controller automatically adjusts the operation of the UAV to maintain the operation of the UAV within an operation threshold based on the operation parameters and the UAV route parameters. The operation threshold is the operation of the UAV that is maintained within an overall airborne operation radius of the UAV from a return destination thereby enabling the UAV to execute the delivery of the package along the airborne delivery route and to return to the return destination.

Abstract: Provided in the present application are a method and apparatus for determining the capacity of an energy storage apparatus for a new energy support machine, and a new energy support machine. The method includes: determining the duration of a rotor of a doubly-fed induction generator participating in adjustment; determining a slip ratio of the rotor of the doubly-fed induction generator when same participates in the adjustment; and determining the capacity of an energy storage apparatus according to an active power of a stator of the doubly-fed induction generator participating in the adjustment, the slip ratio of the rotor when same participates in the adjustment, and the duration of the rotor participating in the adjustment. The method is intuitive and has a small calculation amount, and a determined capacity value is larger and more reliable, such that the engineering practicability is higher.

Abstract: A speaker and a rollable electronic device include a housing defining an accommodating cavity, a speaker structure arranged in the accommodating cavity, and an inverter tube arranged on the housing. A first sound outlet hole and a communicating hole are respectively in a first side wall and a second side wall of the accommodating cavity. The first side wall is connected to the second side wall. The inverter tube is connected to and extended along the second side wall. The inverter tube includes at least one inverter channel communicated with the accommodating cavity and a second sound outlet hole communicated with the at least one inverter channel. The inverter tube is retractable and stretchable along the second side wall to make the inverter tube be in a blocked state or be in a communicating state. By stretching or compressing the inverter tube, good sound experience is realized.

Abstract: Described herein are method, system, and apparatus for correlating medical images with a medical report. An apparatus may obtain a plurality of medical images of a patient and a medical report for the patient, wherein the plurality of medical images may be associated with respective sequence labels and respective view labels, and wherein the medical report may include multiple diagnoses. The apparatus may determine and fuse respective image-type embeddings and image-content embeddings for the plurality of medical images into a combined image feature representation. The apparatus may further encode the features of the medical report into a text feature representation and calculate a similarity score based on the image feature representation and the text feature representation to indicate a correlation between the medical images and the medical report.

Abstract: An application of a pyrido[1,2-a]pyrimidinone analog or a pharmaceutically acceptable salt thereof in the preparation of a drug, the drug being used to treat and/or prevent one or more among PIK3CA-mutated breast cancer, PIK3CA-mutated ovarian cancer, PIK3CA-mutated endometrial cancer, PIK3CA-mutated cervical cancer, and PIK3CA-mutated bladder cancer.

Abstract: An example of a method includes providing a substrate with an exposed surface comprising a first chemical group, wherein the providing optionally comprises modifying the exposed surface of the substrate to incorporate the first chemical group; reacting the first chemical group with a first reactive group of a functionalized polymer molecule to form a functionalized polymer coating layer covalently bound to the exposed surface of the substrate; grafting a primer to the functionalized polymer coating layer by reacting the primer with a second reactive group of the functionalized polymer coating layer; and forming a water-soluble protective coating on the primer and the functionalized polymer coating layer. Examples of flow cells incorporating examples of the water-soluble protective coating are also disclosed herein.

Abstract: Provided is a die system, and a parameter debugging method and device. The method includes: acquiring measured values of a plurality of key parameters of the die system; determining deviations between the measured values and theoretical values of the plurality of key parameters; determining, according to the deviations of the plurality of key parameters, correlational impact values of the plurality of key parameters on stable production; determining, according to the correlational impact values, whether to trigger parameter debugging on the die system; selecting, in response to a determination to trigger parameter debugging on the die system, a target key parameter from the plurality of key parameters; and performing parameter debugging on the target key parameter.

Abstract: System and method for LLM unlearning via loss adjustments are disclosed. The method includes accessing forget data samples from one or more datasets, associating a template response for each forget data sample via implementation of one or more LLMs, and training a target LLM using a forget data only loss adjustment (FLAT) function to generate an unlearned LLM, including implementing a loss adjustment to maximize a divergence for between an available template answer and a forget answer only with respect to forget data samples.

Abstract: Provided is a method for preparing an electrothermal heating sheet from carbon fiber braided fabric scraps, including: cutting clumps of disordered carbon fiber braided fabric scraps into chopped carbon fibers; washing the chopped carbon fibers by separately using acetone and deionized water, and drying; preparing a corresponding dispersion; adding the chopped carbon fibers to the dispersion, and fully dispersing; performing vacuum filtration by using a double-layer metal screen, and drying to obtain a chopped carbon fiber felt; cutting the chopped carbon fiber felt, sticking electrodes to two ends of the chopped carbon fiber felt, and covering thermoplastic polyurethane (TPU) sheets on front and back surfaces of the chopped carbon fiber felt to form a heating sheet product having electrothermal performance and electromagnetic shielding performance.

Abstract: Certain embodiments of the present application relate to an unmanned aerial vehicle, comprising a chassis, a control system mounted to the chassis, at least one rotor operable to generate lift under control of the control system, a spool having a wound portion of a line wound thereon, the line including a free portion, an attachment device secured to the free portion of the line and configured to facilitate attachment of a parcel to the line, a motor operable to rotate the spool under control of the control system such that the control system is operable to raise the attachment device to a raised position and lower the attachment device from the raised position, and a spring positioned between the chassis and the attachment device such that the spring is engaged between the chassis and the attachment device when the attachment device is in the raised position.

Abstract: Disclosed is an intelligent sports knee brace including a base and a strap. The base is connected to the strap. The strap connects a knee brace to a target part of a target object through a connection structure, and an inner surface of the base facing the target part is provided with an airbag that contacts the target part. A cavity is provided inside the base. An inflation mechanism, a detection mechanism, a battery assembly, an early warning assembly, and a main control board are arranged in the cavity. The detection mechanism is configured to detect air pressure data of the airbag and motion status data of the target object, the inflation mechanism is configured to inflate or deflate the airbag, the early warning assembly is configured to provide a motion warning and an emergency rescue reminder, and the main control board is electrically connected to the inflation mechanism, the detection mechanism, the battery assembly, and the early warning assembly.