Abstract: A rotary digging drill includes three disk drills arranged in ascending order of diameter, each with a cavity therein. The disk drill includes two circular ring seats arranged side by side, multiple toothed digging buckets disposed at peripheries of the two circular ring seats, and ring gear racks respectively disposed on inner sides of the two circular ring seats. Adjacent ones of the disk drills have the toothed digging buckets facing opposite directions, and the disk drills all rotate in a direction facing a large opening, enabling adjacent two of the three disk drills to rotate in opposite directions. The rotary digging drill further includes three disk drill supports that match the three disk drills in quantity and are configured to support and drive the three disk drills.

Abstract: A robot (100) working area map construction method and apparatus, a robot (100), and a medium, wherein the robot (100) working area map construction method comprises scanning in real time an obstacle in a driving path and recording position parameters of the obstacle (S102); obtaining in real time image information of the obstacle in the driving path (S104); according to the position parameters and the image information, determining working area-based reference information of the obstacle (S106); and dividing the working area into a plurality of sub-areas on the basis of the reference information (S108). By means of radar scanning and image capture by a camera for double insurance, the robot (100) working area map construction method significantly improves recognition accuracy for room doors and avoids room division confusion caused by the incorrect recognition of doors.

Abstract: A structural encoding unit and an error correction decoding unit are divided. The structure encoding unit is divided into input branch processor and an input proxy processor; and the error correction decoding unit is divided into an output routing processor, an output proxy processor, an adjudication branch processor, an adjudication proxy processor and a voting processor. The input branch processor is used for duplicating and distributing messages, the arbitration branch processor is used for duplicating and distributing data, the voting processor is used for performing voting, and the output routing processor is used for selecting an output result from processing results of the output proxy processor according to a voting result of the voting processor.

Abstract: The present disclosure locates a new brown planthopper resistance gene BPH33.2 on the short arm of rice chromosome 4 by extreme mixed pool analysis (BSA-seq), and genetically transforming the gene BPH33.2 to make the susceptible rice to be the brown planthopper resistant phenotype rice; at the same time, the knockout of the gene BPH33.2 was used to cause the loss of the brown planthopper resistant phenotype in insect resistant rice, thus confirming the function of BPH33.2. The present disclosure also provides molecular markers closely linked with the rice brown planthopper resistance gene BPH33.2. Through experimental detection of molecular markers linked or co-segregated with these resistance loci, the brown planthopper resistance of rice plants can be accurately predicted at the seedling stage, accelerating the progress of the selection of brown planthopper-resistant rice varieties.

Abstract: A 2-piperidyl or 2-pyrazolyl substituted pyrimidine compound, which is a compound represented by formula (I) or a pharmaceutically acceptable salt, an isotopic variant, a tautomer, a stereoisomer, a prodrug, a polymorph, a hydrate or a solvate thereof. A pharmaceutical composition comprising the compound, and a use of the pharmaceutical composition in the treatment of diseases mediated by an EGFR protein and mutants thereof.

Abstract: Provided herein are antibodies and antigen-binding fragment thereof targeting CLL1, and chimeric antigen receptors (e.g., monovalent CAR, and multivalent CAR including bi-epitope CAR) having one or more anti-CLL1 antigen-binding fragments thereof. Further provided are engineered immune effector cells (e.g., T cells) expressing the chimeric antigen receptors and methods of use thereof.

Abstract: The present invention discloses a maleic anhydride modified voltage stabilizer, a preparation method, and use thereof, which belongs to the technical field of high voltage and insulation. The present invention discloses a maleic anhydride modified voltage stabilizer represented by Formula 1 and a preparation method thereof. (1) Maleic anhydride and 2,4-dihydroxybenzophenone are dissolved in tetrahydrofuran to obtain a mixture. (2) In a protective gas atmosphere, the mixture obtained in step (1) is added with a catalyst and stirred, centrifuged with added water, and an obtained precipitate is dried, thereby achieving the maleic anhydride modified voltage stabilizer. The present invention also provides the use of the maleic anhydride modified voltage stabilizer in a cross-linked polyethylene high voltage AC cable insulating material.

Abstract: Provided herein are antibodies and antigen-binding fragment thereof targeting CD33, and chimeric antigen receptors (e.g., monovalent CAR, and multivalent CAR including bi-epitope CAR) having one or more anti-CD33 antigen-binding fragments thereof. Further provided are engineered immune effector cells (e.g., T cells) expressing the chimeric antigen receptors and methods of use thereof.

Abstract: The present invention discloses a flexible sensor detection system for medical care and health, including: an information collection module, which uses a wearable device as a carrier, where flexible sensors are respectively arranged on the wearable device; an information transmission module, configured to wirelessly transmit collected information to an information processing and feedback module; and the information processing and feedback module, configured to perform grading treatment on received data information and feed back a health condition corresponding to the data information to the information transmission module, where the information transmission module compares feedback health condition data with a preset health threshold to determine whether to give an alarm. A heart rate ECG band, a breathing band, a shell temperature band, a blood flow rate band, a blood glucose band, a blood oxygen band, and a deep temperature band of the present invention are provided with the built-in flexible sensors.

Abstract: The present invention discloses a rapid dot matrix micro-nano impact indentation testing system. The rapid dot matrix micro-nano impact indentation testing system comprises a three-dimensional electric positioning module, wherein the three-dimensional electric positioning module comprises an XY translation stage and a Z-axis lifting stage; a dot matrix impact indentation module, wherein the dot matrix impact indentation module comprises a three-degree-of-freedom piezoelectric platform arranged on the Z-axis lifting stage, one surface of the three-degree-of-freedom piezoelectric platform is provided with a piezoelectric ceramic actuator, and one end of the piezoelectric ceramic actuator is connected to an indenter; a clamp, wherein the clamp clamps a test piece, and the test piece faces the indenter; and an imaging module, wherein the imaging module comprises a microscope lens.

Abstract: A control device and method for a flyback converter, a flyback converter and a power supply system are disclosed. The device is configured to apply a tuning voltage or current to a connection node of a secondary winding and a synchronous rectifier within a predetermined period of time after the synchronous rectifier is turned off and before a power transistor switch is turned on. It is also configured to, after the tuning voltage or current is applied, transmit a request signal requesting the power transistor switch to be turned on to a primary controller. The primary controller then turns on the power transistor switch based on the received request signal.

Abstract: The present disclosure belongs to the technical field of heat exchangers, and provides a heat exchanger based on a Gyroid/Diamond (GD-type) hybrid minimal surface-based disturbance structure. The heat exchanger includes a core, headers, and flanges. The core includes a cold fluid channel and a hot fluid channel, the cold fluid channel and the hot fluid channel are separated by a parting sheet. An inlet and an outlet of the cold fluid channel are separated from an inlet and an outlet of the hot fluid channel by sealing bars. A GD-type hybrid minimal surface-based disturbance structure is inserted into the hot fluid channel. A cold fluid and a hot fluid are distributed in a cross-flow manner.

Abstract: A rail train is provided in the embodiment of the present disclosure, comprising: a semi-enclosed air duct, the semi-enclosed air duct comprises an air duct top and an air duct side; the air duct top is fixed with an inner top of a rail train body, the air duct side is connected on both sides of the air duct top and extends downward; a large side top, and the the large side top is fixed to the rail train body as a part of a rail train roof, and the large side top is top-sealed at a bottom of the air duct side to form an air passage with the air duct. The rail train solves the technical problem that the roof and the air duct of the rail train are not conducive to overall weight reduction of the rail train.

Abstract: An online centrifugal system includes a conveying device, a balancing and weighing mechanism, a manipulator, and a centrifuge. The conveying device, the balancing and weighing mechanism and the centrifuge are sequentially arranged. The conveying device is used to convey a sample holder for holding blood collection tubes, the balancing and weighing mechanism is used to weigh an adapter, and the centrifuge is used to perform centrifugation to blood collection tubes. The manipulator is used to grab the blood collection tubes and the adapter respectively, to convey the blood collection tubes between the adapter and the conveying device, and convey the adapter between the centrifuge and the balancing and weighing mechanism. An inlet and outlet window is provided on the centrifuge for passage of the adapter. The balancing and weighing mechanism is used to balance the adapter, thereby meeting balancing needs of the adapter.

Abstract: Embodiments of the present description provide a connecting device. The device comprises a seed crystal support and a seed crystal rod, and the seed crystal support is connected to one end of the seed crystal rod.

Abstract: A method of making an integrated circuit includes growing a semiconductor material layer over a substrate. The method includes doping the semiconductor material layer to define a first source structure comprising a first doped well having a first dopant type, and a drain structure comprising a second doped well having the first dopant type. The method includes etching the semiconductor material layer to define an opening. The method includes depositing a dielectric material into the opening to define a first deep trench isolation (DTI), wherein the first DTI extends through the first doped well. The method includes etching the first DTI to define a contact opening. The method includes filling the contact opening with a thermally conductive material to define a first thermal contact, wherein the thermal contact is in direct contact with the substrate; and the first DTI is between the thermal contact and the first doped well.

Abstract: A method for diagnosing rotor rub-impact in a rotating machinery based on vibration signal deconstruction and frequency modulation characteristic anti-noise enhancement, including: converting, based on two-stage integration transformation and high-pass filtering, vibratory acceleration signals from a rotating machinery device into vibratory displacement signals; performing targeted extraction on a rotating frequency component therein based on an improved variational mode decomposition method; calculating and estimating instantaneous fluctuation characteristics of a fundamental frequency of the extracted rotating frequency component using a quadrature-derivative-based normalized Hilbert transform to obtain an instantaneous frequency; inputting a calculated instantaneous frequency sequence into an optimum stochastic resonance system for anti-noise enhancement of intrawave frequency modulation characteristics; and processing FFT on an instantaneous frequency of intrawave frequency modulation characteristics afte

Abstract: A method for evaluating a degassing effect of a cross-linked polyethylene cable, includes: acquiring a cable sample to be detected; heating the cable sample to be detected; under a darkroom condition, acquiring at least one light spot image of said transparent cable sample under irradiation of a monochromatic laser light source; extracting light intensity data of the at least one light spot image in a preset light spot image range; normalizing the light intensity data, and obtaining the maximum value and an average value of normalized light intensity coefficients of said transparent cable sample in a preset thickness range of the insulating layer; calculating a degassing uniformity coefficient according to the maximum value and the average value; and obtaining an evaluation result of the degassing effect of the cross-linked polyethylene cable according to the maximum value, the average value, and the degassing uniformity coefficient.

Abstract: Some embodiments of the present disclosure provides a dual-power hydraulic roof bolter, which includes an electric vehicle chassis, a machine base part, a drill boom mechanism, a bolting machine, a working platform set, an operating platform and a hydraulic system, and the hydraulic system is connected with the electric vehicle chassis, the drill boom mechanism, the bolting machine, the working platform set and the operating platform to control accordingly actions, the electric vehicle chassis is provided with the machine base part, the machine base part is provided with the drill boom mechanism, and the drill boom mechanism is provided with the bolting machine, the working platform set and the operating platform; the hydraulic system is independently driven by two sets of power sources respectively, and the two sets of power sources are an electric vehicle chassis transfer case driving hydraulic pump and a wind motor driving hydraulic pump respectively.

Abstract: A robot (100) working area map construction method and apparatus, a robot (100), and a medium, wherein the robot (100) working area map construction method comprises scanning in real time an obstacle in a driving path and recording position parameters of the obstacle (S102); obtaining in real time image information of the obstacle in the driving path (S104); according to the position parameters and the image information, determining working area-based reference information of the obstacle (S106); and dividing the working area into a plurality of sub-areas on the basis of the reference information (S108). By means of radar scanning and image capture by a camera for double insurance, the robot (100) working area map construction method significantly improves recognition accuracy for room doors and avoids room division confusion caused by the incorrect recognition of doors.