Abstract: A cooperative emission reduction method for sintering using an energy-carrying composite gas is disclosed. A surface of a sintered material is divided into an ignition section, a heat preservation section, a middle section, a flue gas heating section, and a machine tail section from a machine head to a machine tail of a sintering machine; according to flue gas components, temperature characteristics, and heat requirements of different sections, a hot exhaust gas is introduced to the ignition section for ignition, a hot exhaust gas is introduced to the heat preservation section and a hydrogen-rich gas is cascadingly sprayed synchronously, cascaded spraying of water vapor is coupled based on spraying of a hydrogen-rich gas in the middle section, and the high-temperature flue gas in the machine tail section and the flue gas in the ignition section and/or the heat preservation section are circulated to the heating section.

Abstract: An integrated bipolar electrode includes a laminated structure and a bipolar plate. The laminated structure is formed by interconnecting an anode active material layer with a cathode active material layer. The bipolar plate is sandwiched in a hollow cavity of the laminated structure. Side surfaces of the laminated structure are provided with a sealing layer for mating with a bipolar electrode fixing frame to prevent an anolyte and a catholyte from permeating into each other. The anode active material layer and the cathode active material layer in the integrated bipolar electrode are directly connected. A contact resistance between the anode active material layer and the cathode active material layer is quite low, and a battery prepared finally has better performances.

Abstract: Disclosed are a diglycosylated benzophenoxazine photosensitizer, and a preparation method and use thereof. The present invention greatly improves the enriched concentration of the photosensitizer in tumor cells by taking full advantage of the enhanced uptake and enhanced glycolysis of carbohydrates by tumor cells and the glycosylation of a selenium-containing benzophenoxazine compound, thereby improving the targeting of a diglycosylated benzophenoxazine photosensitizer involved in the present invention in the treatment of cutaneous tumors and also significantly decreasing the toxic and side effects of the photodynamic therapy. The present invention can efficiently and rapidly inhibit the proliferation of cells of cutaneous squamous cell carcinoma and essentially cause no damage to normal cells.

Abstract: A device for sewage treatment comprises a treatment tank, a power and electric control unit, a gas supply and tail gas recovery unit and a circular reaction treatment unit; the treatment tank is provided with a liquid inlet, a liquid outlet, a gas intake port and a tail gas exhaust port; the gas supply and tail gas recovery unit is communicated with the treatment tank through the gas intake port; the tail gas exhaust port is communicated with the gas supply and tail gas recovery unit; the circular reaction treatment unit comprises an external circulating device and a reaction treatment element arranged inside the treatment tank.

Abstract: A video transcoding method is provided for a video transcoding device. The method includes obtaining a video sequence in source video data, which comprises a plurality of video sequences arranged in a sequence arrangement order; obtaining a source video frame in the video sequence; and obtaining a first ratio of a sum of absolute transformed differences of an initial frame in the video sequence to a bit rate of the video sequence. The method also includes adjusting a quantization parameter of the source video frame based on the first ratio; encoding the source video frame based on an adjusted quantization parameter to obtain a target video frame; replacing the source video frame with the target video frame to obtain a video sequence after the replacement; and adding the video sequence after the replacement to target video data according to the sequence arrangement order.

Abstract: Disclosed are a high-precision resistance measurement system and method combining a micro-differential method and a ratiometric method. The system includes a constant-current source, a reference resistor, a first differential amplifier, a programmable gain amplifier (PGA), an ADC, a microprocessor, a DAC and a to-be-measured resistor interface. The reference resistor and a to-be-measured resistor are connected in series between the constant-current source and ground. The voltage across the reference resistor is inputted to the first differential amplifier, and the output of the first differential amplifier is used as the reference voltage for the ADC and the DAC. The single-ended voltage to ground of the to-be-measured resistor and the output voltage of the DAC are inputted to the PGA in differential manner, and the PGA outputs the amplified difference voltage to the ADC. The output terminal of the ADC and the input terminal of the DAC are both connected to the microprocessor.

Abstract: A fat cutter and an integrated machine for preparation of in vitro fine-particle fat are provided. The fat cutter includes a fat inlet channel, a fat outlet channel, at least one set of blades disposed between an outlet of the fat inlet channel and an inlet of the fat outlet channel, and a housing that seals a space in which the outlet of the fat inlet channel, the inlet of the fat outlet channel, and the blades are located. A fat inlet of the fat inlet channel is connected to a large-diameter liposuction tube by a liposuction channel, and a fat outlet of the fat outlet channel is connected to a high-negative pressure device. The outlet of the fat inlet channel and the inlet of the fat outlet channel are oppositely provided, and a gap therebetween matches the thickness of the blades.

Abstract: A method for preparing a nano spherical oxide dispersion strengthening phase using a micron oxide is proposed for the first time. First, a micron oxide is used as a raw material to prepare a nano oxide with a completely amorphous structure/matrix alloy composite powder by mechanical ball milling in stages. In the first stage, ball milling is performed, causing the oxide to break and transform in structure, and achieving nano-sizing and completely amorphization, to prepare a composite powder with a completely amorphous structure nano oxide uniformly distributed in the matrix alloy powder; and in the second stage, the composite powder obtained in the first stage and the remaining matrix alloy powder are uniformly mixed by ball milling. Then, the uniformly mixed powder is sequentially subjected to hot forming, hot rolling, and heat treatment, to obtain a nano spherical oxide dispersion strengthened alloy.

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 invention provides the internal fixation system of spine posterior screw-plate, including the vertebral plate. The vertebral plate is curved, its internal cambered surface directly faces the spine, and external cambered surface of vertebral plate is equipped with a reinforcing rib. The vertebral plate is set with the perforative injecting hole. One side of vertebral plate is fixed with a fixed connecting plate, and the end of the fixed connecting plate away from the vertebral plate is set with the first regulating hole. The bottom of the fixed connecting plate on two sides of the first regulating hole is set with n-shaped caulking groove.

Abstract: The invention provides the internal fixation system of multi-function adjustable spine posterior screw-rod. It not only includes the vertebral plate, but also includes the adjustable connecting rod, screw and lock nut. Among them, vertebral plate is curved, its internal cambered surface directly faces the spine, and external cambered surface of vertebral plate is equipped with a reinforcing rib. The vertebral plate is set with the perforative injecting hole, and the external cambered surface of vertebral plate is set with the located block. The surface of the located block is set with the concave threaded hole, and the located block on two sides of the threaded hole is set with the U-shaped bracket. The top of screw expands to form a locking block, which surface is set with the concave locking hole. The locking block on both sides of locking hole is set with the U-shaped locking groove.

Abstract: Disclosed are a high-precision resistance measurement system and method combining a micro-differential method and a ratiometric method. The system includes a constant-current source, a reference resistor, a first differential amplifier, a programmable gain amplifier (PGA), an ADC, a microprocessor, a DAC and a to-be-measured resistor interface. The reference resistor and a to-be-measured resistor are connected in series between the constant-current source and ground. The voltage across the reference resistor is inputted to the first differential amplifier, and the output of the first differential amplifier is used as the reference voltage for the ADC and the DAC. The single-ended voltage to ground of the to-be-measured resistor and the output voltage of the DAC are inputted to the PGA in differential manner, and the PGA outputs the amplified difference voltage to the ADC. The output terminal of the ADC and the input terminal of the DAC are both connected to the microprocessor.

Abstract: A method for preventing cracking of nickel-based superalloy fabricated by selective laser melting (SLM) belongs to the field of additive manufacturing (AM). The method of preparing an as-built part with a high density, no crack defects, and good mechanical properties includes: reducing the content of elements Zr and B forming low melting point phase in a nickel-based superalloy, adjusting the total content of Al and Ti in the alloy to 4.5 wt % or below, and combining with the control of special SLM process parameters. The new method has the advantages of a reasonable component design, a simple preparation process, and good performance of the as-built part, and therefore is suitable for large-scale application.

Abstract: A nickel-based superalloy for three-dimension (3D) printing and a powder preparation method thereof are provided. The method of preparing the nickel-based superalloy and its powder includes: RE microalloying combined with vacuum melting, degassing, refining, atomization with reasonable parameters, and a sieving process. The new method significantly reduces the cracking sensitivity of the “non-weldable” PM nickel-based superalloys, and broadens the 3D printing process window. The as-printed part has no cracks, and good mechanical properties. In addition, the powder prepared by the new method has higher sphericity and better flowability, and less irregular powders. The yield of fine powders with a particle size of 15-53 ?m and medium-sized powders with a particle size of 53-106 ?m that are required for 3D printing is greatly improved, which meet the requirements for 3D printing of high-quality, low-cost nickel-based superalloy powder.

Abstract: An automated preparation method of a SiCf/SiC composite flame tube, comprising the following steps: preparing an interface layer for a SiC fiber by a chemical vapor infiltration process, and obtaining the SiC fiber with a continuous interface layer; laying a unidirectional tape on the SiC fiber with the continuous interface layer and winding the SiC fiber with the continuous interface layer to form and obtaining a preform of a net size molding according to a fiber volume and a fiber orientation obtained in a simulation calculation; and adopting a reactive melt infiltration process and the chemical vapor infiltration process successively for a densification and obtaining a high-density SiCf/SiC composite flame tube in a full intelligent way. The SiCf/SiC composite flame tube prepared by the present disclosure not only has a high temperature resistance, but also has a low thermal expansion coefficient, high thermal conductivity and high thermal shock resistance.

Abstract: The present invention discloses a method for processing a highly alloyed aluminum alloy sheet with a high rolling yield, including the steps of cold rolling and hot rolling of an alloy sheet followed by heat treatment. The highly alloyed Al—Cu—Mg—Ag alloy sheet is subjected to short-time solution treatment and quenching at high temperature for multiple times by increasing the solution treatment temperature and shortening the solution treatment time. In this way, the mechanical properties of the alloy at room temperature and high temperature match with or even exceed those of a conventional alloy subjected to long-time solution treatment at high temperature. The present invention implements multiple times of short-time continuous solution treatment and quenching of a highly-alloyed coiled aluminum alloy sheet. This prevents a large amount of scraps caused by the conventional processes of segmented solution treatment and quenching of the coiled material and stretching straightening treatment.

Abstract: A method and a system for encryption and decryption based on continuous-variable quantum neural network CVQNN. The method includes: updating a weight of the CVQNN with a training sample; triggering, by a sender, a legal measurement bases synchronization between the sender and the CVQNN; converting, by the sender, the information to be sent into a quadratic plaintext according to the synchronized measurement bases, and sending the quadratic plaintext to the CVQNN; encrypting, by the CVQNN, a received quadratic plaintext, and sending an encrypted quadratic plaintext to a receiver; after receiving the encrypted quadratic plaintext, sending by the receiver the encrypted quadratic plaintext to the CVQNN for decryption to obtain decrypted information. The embodiments implement data encryption and decryption by introducing CVQNN model and synchronization measurement technology. The embodiments provide advantages of high reliability, high security and easy realization.

Abstract: A fat cutter and an integrated machine for preparation of in vitro fine-particle fat are provided. The fat cutter includes a fat inlet channel, a fat outlet channel, at least one set of blades disposed between an outlet of the fat inlet channel and an inlet of the fat outlet channel, and a housing that seals a space in which the outlet of the fat inlet channel, the inlet of the fat outlet channel, and the blades are located. A fat inlet of the fat inlet channel is connected to a large-diameter liposuction tube by a liposuction channel, and a fat outlet of the fat outlet channel is connected to a high-negative pressure device. The outlet of the fat inlet channel and the inlet of the fat outlet channel are oppositely provided, and a gap therebetween matches the thickness of the blades.

Abstract: A health early warning system for passengers on a train in an outdoor air polluted environment and a method thereof are provided. The system comprises an air quality monitoring station data acquisition module, a train data acquisition module, a train air pollution prediction module, and a train air environment early warning module; the air quality monitoring station data acquisition module acquires data of air quality monitoring stations and uploads the data to the train air pollution prediction module; the train data acquisition module acquires data of the train and uploads the data to the train air pollution prediction module; the train air pollution prediction module performs short-term prediction on air pollution of the train and uploads a result of the short-term prediction to the train air environment early warning module; and the train air environment early warning module performs early warning on the health of the passengers on the train.

Abstract: A long-term ablation-resistant nitrogen-containing carbide ultra-high temperature ceramic with an ultra-high melting point is prepared as follows: preparing the HfC powder and the HfN powder according to a mass ratio of HfC:HfN=(1-7):1; uniformly mixing the HfC powder and the HfN powder with the carbon powder and the carbon nitride powder to obtain a mixed powder, wherein the amount of the carbon powder and the amount of the carbon nitride powder do not exceed 8.0 wt. % and 5.0 wt. %, respectively, of the mixed powder mass; and performing spark plasma sintering on the mixed powder to produce the ceramic with the ultra-high melting point, a density ?98%, and a uniform C/N content distribution. The ultra-high temperature ceramic is suitable for ultra-high temperature ablation-resistant protection at ?3000° C. The ceramic maintains a close to zero ablation rate and a continuously stable oxidation-resistant protective structure after ablation for 300 s.