Abstract: Some embodiments of the disclosure provide accounting methods for carbon footprints of leather products. In some examples, the accounting method includes the following steps: firstly, determining a system boundary for a carbon footprint in a life cycle of a leather product; dividing the carbon footprint into a raw material production and transportation stage, a leather product production stage, and a leather product transportation and distribution stage within the system boundary for the leather product; determining carbon emission source inventories of the stages and emission factors thereof in combination with process and flow characteristics of the stages, and then constructing carbon emission accounting models of the stages, and calculating carbon footprint data of the stages, and, finally, obtaining the carbon footprint of the leather product.

Abstract: The present application provides a method for checking message, a terminal device and a storage medium. The method includes obtaining an actual message generated by a payment application during a transaction process, parsing the actual message to obtain the corresponding message parsing result, obtaining the expected message corresponding to the actual message and verifying the message parsing result according to the value of each field in the expected message.

Abstract: The present disclosure provides a nitride-based bidirectional switching device with substrate potential management capability. The device has a control node, a first power/load node, a second power/load node and a main substrate, and comprises: a nitride-based bilateral transistor and a substrate potential management circuit configured for managing a potential of the main substrate. By implementing the substrate potential management circuit, the substrate potential can be stabilized to a lower one of the potentials of the first source/drain and the second source/drain of the bilateral transistor no matter in which directions the bidirectional switching device is operated. Therefore, the bilateral transistor can be operated with a stable substrate potential for conducting current in both directions.

Abstract: A device operating method, a device operating system, and a device, including: pre-establishing an instruction coordinate system, the instruction coordinate system and a reference orientation satisfying a preset position relationship; during use of the device, determining the current orientation in which the user is positioned with respect to the device, and adjusting the instruction coordinate system based on the current orientation and the reference orientation, such that the instruction coordinate system after adjustment and the current orientation satisfy the preset position relationship, and the position of the center of an interactive module in the instruction coordinate system after adjustment is the same as the position thereof in the instruction coordinate system before adjustment.

Abstract: A refrigerator includes a refrigerator body, an ice maker, a refrigeration cycle system, and a controller. The refrigerator body includes a chamber. The ice maker is located in the chamber and is configured to make ice. The ice maker includes two refrigerant pipes. The refrigeration cycle system includes a compressor, a condenser, and two cooling flow paths. The two cooling flow paths are connected to the two refrigerant pipes, respectively, and the two cooling flow paths are configured to cool the ice maker. The controller is configured to control the compressor to be turned on or off and control the two cooling flow paths to open or be closed, so as to cool the ice maker through at least one of the two refrigerant pipes.

Abstract: A main stream reservoir ecological modulation method considering incoming water from interval tributaries is provided. The method determines the contribution ratio of the incoming water from interval tributaries to first-day's water rising in a high-flow surge process and when to start ecological modulations of spawning ground sections, determines a river course routing method after a main stream and its tributaries joining and calibrating parameters, based on past hydrological data, performing river flow calculation on the discharge volume of upstream reservoirs and the flow after interval tributaries joining, and determines a main stream reservoir ecological modulation mode considering incoming water from interval tributaries.

Abstract: A refrigerator includes a refrigerator body and an icemaker. An ice making chamber is defined in the refrigerator body. The icemaker is provided in the ice making chamber. The icemaker comprises a mold shell and a drive mechanism. The mold shell is provided with a water inlet and comprises a plurality of sub-mold shells. The plurality of sub-mold shells are configured to be switchable between a separated state and a closed state. The plurality of sub-mold shells are away from each other in the separated state, and the plurality of sub-mold shells are close to each other and closed in the closed state. The drive mechanism is configured to drive the plurality of sub-modules to switch between the separated state and the closed state.

Abstract: A refrigerator includes a refrigerator body and an ice maker. The ice maker includes a mold shell and a driving mechanism. The mold shell has at least one mold cavity and a water inlet. The mold shell includes a first sub-mold shell and a second sub-mold shell. One of the first sub-mold shell and the second sub-mold shell is fixed, and another of the first sub-mold shell and the second sub-mold shell is movable. The driving mechanism is configured to drive the first sub-mold shell or the second sub-mold shell to switch between a separated state and a dosed state. The second sub-mold shell includes a heating mechanism, a second shell portion, and a second mold portion. The second mold portion is disposed in the second shell portion, and the heating mechanism is disposed on a side of the second shell portion away from the second mold portion.

Abstract: A main stream reservoir ecological modulation method considering incoming water from interval tributaries is provided. The method determines the contribution ratio of the incoming water from interval tributaries to first-day's water rising in a high-flow surge process and when to start ecological modulations of spawning ground sections, determines a river course routing method after a main stream and its tributaries joining and calibrating parameters, based on past hydrological data, performing river flow calculation on the discharge volume of upstream reservoirs and the flow after interval tributaries joining, and determines a main stream reservoir ecological modulation mode considering incoming water from interval tributaries.

Abstract: A method for detecting gas concentration in a glass bottle with dynamical threshold adjustment is provided includes acquiring second harmonic peaks P0, Pa, PX in the glass bottle, calculating absolute values of the differences between P0 and Pa, as well as between P0 and PX, and performing quality inspection on a glass bottle to be detected. The performing includes collecting the second harmonic peaks for the glass bottle to be detected, calculating a mean PL of elements in the current queue L, updating the second harmonic peak Pa and the second harmonic peak PX, collecting second harmonic peaks for a current glass bottle to be detected, and determining whether the current glass bottle to be detected is an acceptable medicinal bottle based on the updated data and the collected second harmonic peaks.

Abstract: A dual-shaft built-in pump includes a main body, provided with an air inlet and an air outlet; a motor cover, provided with an accommodating cavity having an air inflation vent and an air deflation vent; two valve bodies; a first fan blade, located between the air inflation vent and the air inlet; a second fan blade, located between the air deflation vent and the air outlet; a dual-shaft motor, configured in the accommodating cavity and having an output shaft connected with the first fan blade and the second fan blade; and a rotating member, rotatably provided on the main body and configured to drive either of the two valve bodies thereby opening the air inlet or the air outlet. The pump has simple structure, convenient fabrication and low cost.

Abstract: A dual-shaft built-in pump includes a main body, provided with an air inlet and an air outlet; a motor cover, provided with an accommodating cavity having an air inflation vent and an air deflation vent; two valve bodies; a first fan blade, located between the air inflation vent and the air inlet; a second fan blade, located between the air deflation vent and the air outlet; a dual-shaft motor, configured in the accommodating cavity and having an output shaft connected with the first fan blade and the second fan blade; and a rotating member, rotatably provided on the main body and configured to drive either of the two valve bodies thereby opening the air inlet or the air outlet. The pump has simple structure, convenient fabrication and low cost.

Abstract: A true-seeing infrared industrial endoscope endoscope includes an external shell protective unit including a housing and an electrical appliance component box connected to a rear end of the housing. A cavity of the housing is provided with a dual capturing-imaging unit including at least two capturing-imaging subunits. Each of the capturing-imaging subunits includes a light splitter, an image capturing lens, an infrared imaging tube, and a visible light imaging tube. The electrical appliance component box is provided with a communication module and a power supply electrically connected to the dual capturing-imaging unit and the communication module. The communication module is communicatively connected to the dual capturing-imaging unit and an upper computer via a communication bus, and the power supply is electrically connected to the dual capturing-imaging unit via a power bus.

Abstract: An intelligent monitoring method and apparatus for abnormal working conditions in a heavy metal wastewater treatment process based on transfer learning and a storage medium are provided. During an intelligent monitoring, the abnormal working conditions can be automatically and intelligently recognized by fusing data in the treatment process of the heavy metal wastewater different in source; specifically, a normal sample YSD in the treatment process of the heavy metal wastewater with fixed sources and a small number of normal samples YTD in the treatment process of the heavy metal wastewater with unknown sources are utilized; and first, a data representation dictionary DSD of YSD is obtained through learning on YSD, and then considering different distribution of YSD and YTD, a transfer learning method is adopted to fuse characters of YTD into a dictionary learning process to obtain a dictionary DTD with higher generalization ability.

Abstract: A method for detecting a flow velocity of a high-temperature molten fluid can include: collecting a video stream of a high-temperature high-velocity molten fluid, decomposing the video stream into a frame image sequence sorted by time, and extracting a molten fluid Region Of Interest (ROI) from the frame image sequence, extracting a molten fluid outline of the molten fluid ROI, and extracting a characteristic block of the molten fluid outline, and obtaining the flow velocity of the molten fluid based on the characteristic block. A flow velocity detection accuracy can be improved for a molten fluid with a high temperature, a high velocity and a high glossiness.

Abstract: This invention relates to processes for the preparation of antiparasitic isoxazoline compounds enriched in an enantiomer using quinine-based chiral phase transfer catalyst. The invention also relates to novel quinine-based phase transfer catalysts and to a toluene solvent form of the isoxazoline compound of the invention.

Abstract: A method for detecting gas concentration in a glass bottle: firstly, second harmonic peaks P0, Pa, PX of the glass bottle are obtained under the same detection environment 0%, an acceptable concentration threshold a % and a reference concentration auxiliary threshold X %; then absolute values of the differences between P0 and Pa, as well as between P0 and PX, so as to obtain Da, Dx, and to write P0 into a queue with a length of M; next, quality inspection is performed on each glass bottle to be detected by: collecting the second harmonic peak PN of the glass bottle and determining if PN?Pa is true; wherein if true, it is determined whether PN?PX is true, and, if true, the second harmonic peak of the medicinal bottle is written into the queue, the queue is averaged to obtain PL, update is performed Pa=PL+Da, PX=PL+DxPa=PL+Da, PX+PL+Da, which is used for the detection of the next medicine bottle after updating.

Abstract: The present application provides an insulating composite plate comprising: an upper plate layer, a lower plate layer, and a middle plate layer, wherein the upper plate layer and the lower plate layer are made of a thermoplastic material; the middle plate layer is located between the upper plate layer and the lower plate layer, the middle plate layer being a metal mesh; the upper surface of the middle plate layer and the lower surface of the upper plate layer are bonded together, and the lower surface of the middle plate layer and the upper surface of the lower plate layer are bonded together. An insulating composite plate provided by this application has good insulation properties and can shield electromagnetic interference.