Abstract: A process for treating aged oil by electron beam irradiation is disclosed, comprising the following steps: step 1, homogenizing the aged oil and then feeding the aged oil into a distributor; step 2, forming a liquid layer having a certain thickness on the distributor; step 3, installing and debugging an electron beam irradiation device on the distributor; step 4, installing and debugging a phased-array microwave emitter on the distributor after installing and debugging the electron beam irradiation device; step 5, turning on the electron beam irradiation device and the phased-array microwave emitter; and step 6, dividing the treated aged oil and then allowing the aged oil after dividing to enter an oil pool and a water pool for standing. Oil flows out from an upper layer of the oil pool, a lower layer of the oil pool flows back to an aged oil storage pool.

Abstract: A method for assessing microbial drug resistance multi-level risks of antibiotic residues in water environments, belonging to the technical field of water environment assessment, comprises the following steps: S1, environment monitoring; S2, preliminary screening of antibiotics: S2-1, determination of n-octanol/water partition coefficient, and S2-2, determination of antibiotic environment concentration; S3, assessment of microbial drug resistance; and S4, high-level assessment. The assessment method of the present disclosure conducts a step-by-step assessment of target antibiotics or target antibiotic derivatives in water environment with risks.

Abstract: An application of a hydrogel in the preparation of products for the treatment of bacterial infection is disclosed. Ferrous ion was used in the antibacterial activity test of Staphylococcus aureus and showed a strong bactericidal effect, which the survival rate of Staphylococcus aureus is less than 0.001%, as well as the survival rate of methicillin-resistant Staphylococcus aureus (MRSA) was less than 0.01%. Ferrous ion hydrogel was used for the treatment of keratitis and skin wound infection. Ferrous ion hydrogel for the treatment of keratitis and skin wound infection, which can significantly reduce the risk of pulmonary MRSA infection, prevented the dissimilation of MRSA to the lung, and alleviated systemic inflammation in the body in a timely and effective manner, revealing the therapeutic potential of ferrous compounds for treatment of Staphylococcus aureus infections, including MRSA.

Abstract: The disclosure provides a battery pack, a battery thermal management system and a battery thermal management control method. The battery pack includes: a housing, a bracket and a battery cell. The housing is provided with an accommodation space. The bracket is arranged in the accommodation space, which forms at least one accommodation cavity with the accommodation space. The battery cell is arranged in the accommodation cavity, and at least one heat dissipation passage is opened in the accommodation cavity. At least one fan is arranged on one side of the heat dissipation passage to suck or blow air to the heat dissipation passage. Compared with the prior art, the battery pack of the disclosure has an active heat dissipation function while satisfying waterproofing.

Abstract: Embodiments of the disclosure provide a method and a device for processing a portrait image, the method includes: acquiring a to-be-processed portrait image; inputting the to-be-processed portrait image into an image processing model, and acquiring a head smear image output by the image processing model, where the image processing model is configured to smear a hair area of a portrait located above a preset boundary in the portrait image, and the image processing model is generated by training a sample data set of a sample portrait image and a sample head smear image corresponding to the sample portrait image; rendering the head smear image with a head effect material to obtain a portrait image added with an effect; and displaying the portrait image added with the effect.

Abstract: A continuous welding method and device for a hybrid welding, a welded finished product and a train body. The method comprises: performing hybrid welding on a groove of a welding piece by coupling a laser and a variable polarity arc; wherein the defocusing distance of the laser is not less than a Rayleigh length of the laser. According to the method of the present disclosure, the power density of the laser on the surface of the welding piece is effectively reduced and the height-width-ratio of the weld seam is decreased, the diameter of the welding melted pore is increased, the voids caused by the collapse of the small pore in the welding melted pore can be effectively reduced, thereby solving the problem that the weld porosity is difficult to escape in the prior art, and reducing the generation of the pores, effectively improving welding stability and reliability, and improving the mechanical properties of the weld seams.

Abstract: The disclosure relates to a method performed by an electronic device of a base station. The method includes: obtaining beam priority information of a plurality of beams for a plurality of user equipments (UEs); obtaining inter-beam interference information of the plurality of beams; identifying, based on the beam priority information and the inter-beam interference information, one of a plurality of beam pairing sets comprising two or more beams among the plurality of beams; and performing communication with at least one of the plurality of UEs via the identified beam pairing set.

Abstract: The disclosure provides a battery pack, a power tool system and a charging system. The battery pack includes a battery pack housing in which a battery cell assembly and a circuit board are mounted. The circuit board is electrically connected with the battery cell assembly. A plurality of Type-C connectors are arranged on the circuit board and electrically connected to the circuit board to realize an electrical connection between the battery cell assembly and the Type-C connectors, and are configured to connect external devices.

Abstract: A charging device and an application thereof are provided. The charging device includes a housing, defining a receiving cavity; a circuit board, arranged in the receiving cavity; an input part, provided on the housing and configured for connection to an external power supply; and a plurality of output parts, provided on the housing, the input part and the output part being electrically connected via the circuit board. Each of the output parts includes at least one terminal, and the terminal is arranged in the receiving cavity and passes through the housing to a surface of the housing. The charging device can be applied to charge a wide range of electronic devices.

Abstract: A power device and a power tool are provided, including a motor and a transmission gear set. The transmission gear set includes a driving gear and a driven gear, a speed of the motor is from 5000 rpm to 11000 rpm, a diameter is from 20 mm to 50 mm, and a volume is from 600 mm3 to 2200 mm3. A weight is from 90 g to 260 g. A reduction ratio of the driving gear to the driven gear is from 2 to 7. The power tool of the disclosure adopts an outer rotor motor with a smaller rotor diameter and a lower rotating speed, which reduces a volume and weight of the overall device, is easy to mount and carry, and increases a battery life.

Abstract: A method, base station and user equipment are provided for wireless communication. The method can include steps: transmitting data on a first frequency band; transmitting, on a second frequency band, a detection signal for detecting a channel condition of the second frequency band; generating channel condition information about the second frequency band based on the received detection signal; feeding back the channel condition information via the first frequency band; and selecting a current data transmission frequency band based at least in part on the feedback channel condition information about the second frequency band and/or traffic requirement information; wherein the current data transmission frequency band is any one of the first frequency band, the second frequency band or a cooperative transmission of the first frequency band with the second frequency band.

Abstract: A thermal management system includes a refrigerant loop, a battery coolant loop, and a motor coolant loop. The refrigerant loop includes a compressor selectively communicating with at least two of a condenser, an evaporator, and a heat exchanger. The battery coolant loop includes a first bypass path connected to the heat exchanger. The motor coolant loop includes a second bypass path connected to the radiator. A valve package includes ten outer ports and eight inner channels. Three outer ports connect to the heat exchanger, one of which is connected to the first bypass path. Two outer ports connect to the power supply system. Two outer ports connect to the powertrain system. Three outer ports connect to the radiator, one of which is connected to the second bypass path. Eight of the ten outer ports selectively communicate with four of the eight inner channels.

Abstract: A battery thermal management system and method are provided. The system includes: a battery, a battery thermal exchange structure, a pump, at least one first valve and one or more thermal adjustment components, wherein the battery thermal exchange structure includes a thermal exchange channel passing through the battery, and has a first port and a second port; a first coolant circulation loop is formed via connecting the pump and the battery thermal exchange structure, and a second coolant circulation loop is formed via connecting the pump, the battery thermal exchange structure and the one or more thermal adjustment components; the first valve is set at each or one of two joint locations between the first coolant circulation loop and the second coolant circulation loop and is configured to direct coolant flowing through the first valve into either the first coolant circulation loop or the second coolant circulation loop.

Abstract: A battery heating device of an electric vehicle, a battery heat adjustment method, a storage medium, and an electronic device are provided. The device includes a battery heating circuit, an engine cooling circuit and a three-way valve. The three-way valve connects the battery heating circuit and the engine cooling circuit to mix a first liquid in the engine cooling circuit and a second liquid in the battery heating circuit, and transmits a mixed liquid to the battery heating circuit to heat a battery in the battery heating circuit. By means of the disclosure, the problems of large overall weight and packaging space of a system caused by the use of a heat exchanger and high manufacturing cost in a conventional art are solved, the overall weight and packaging space of the system are reduced, additional components are reduced, and the cost is reduced.

Abstract: The present disclosure relates to the technical field of solid waste recycling and fabricated buildings, and provides a solid waste large-mixing-amount concrete prefabricated laminated slab and a preparation method thereof. The solid waste large-mixing-amount concrete prefabricated laminated slab provided by the present disclosure comprises a prefabricated layer and a laminated layer. Transverse grooves and longitudinal grooves are formed in the surface of the prefabricated layer. During application, the grooves can be used for erecting pipelines, the contact area of the prefabricated layer and the laminated layer can also be increased, the combined effect of new concrete and old concrete is improved, the integrity of a floor slab is enhanced, and the effect of improving the overall stress capacity of the floor slab is achieved.

Abstract: A socket which holds an IC package and is to be mounted on a circuit board is described that includes: a housing with a bottom portion, two pairs of side wall portions and an opening accommodating the IC package, contacts and holders. The bottom portion is provided with penetration holes. The two pairs of side wall portions face each other across the opening and one pair of side wall portions are provided with ribs protruding outward. The contacts are supported by the housing so as to pass through the penetration holes and are exposed on an opposite side of the opening. The holders have first support holes and are fixed to side surfaces of the housing with the ribs passing through the first support holes.

Abstract: The present disclosure provides a measurement system and a measurement method related to the field of measurement techniques, the measurement system comprising: a light source configured to produce an original beam, wherein a return beam is formed by the original beam returning from a measured area of a measured object; an optical assembly configured to obtain a pending beam based on the return beam, wherein at least part of the pending beam acts as a first beam; a first detection device configured to obtain first detection information based on the first beam; a mobile device configured to move the optical assembly and the measured object with respect to each other in a direction of an optical axis of the optical assembly; and a processing system configured to determine an actual distance between the optical assembly and a fixed plane of the measured object at each first moment according to the first detection information at each first moment of a plurality of first moments.

Abstract: A speech recognition method comprises: generating, based on a preset speech knowledge source, a search space comprising preset client information and for decoding a speech signal; extracting a characteristic vector sequence of a to-be-recognized speech signal; calculating a probability at which the characteristic vector corresponds to each basic unit of the search space; and executing a decoding operation in the search space by using the probability as an input to obtain a word sequence corresponding to the characteristic vector sequence.