80results about How to "Keep for a long time" patented technology

The invention relates to a nickel-based single-crystal high-temperature alloy and a preparation method thereof, and relates to the technical field of single-crystal high-temperature alloys. According to the main technical scheme, the nickel-based single crystal high-temperature alloy is prepared from the following chemical components in percentage by mass: 6 to 8 weight percent of Cr, 7 to 9 weight percent of Co, 1 to 3 weight percent of Mo, 7 to 9 weight percent of W, 5 to 7 weight percent of Ta, 5 to 7 weight percent of Al, 0.5 to 2 weight percent of Ti, 0.5 to 1 weight percent of Nb, 0.008 to 0.013 weight percent of N and the balance of Ni. After the Nb and the trace element N are introduced, the void ratio in the as-cast alloy is reduced by 35%, the void ratio of the heat-treated alloy is reduced to 28% after treatment of a set heat treatment process, and the high-temperature strength and the endurance life of the low-cost second-generation single-crystal high-temperature alloy are further improved. The nickel-based single-crystal high-temperature alloy is particularly suitable for manufacturing hot-end high-temperature components with long service life and high reliability in the fields of aviation, aerospace, energy and the like.

The present invention discloses a residual current operated circuit breaker, belonging to the technical field of low-voltage electrical appliances. The residual current operated circuit breaker includes an electric leakage tripping pole module, and an L-pole circuit breaker module and an N-pole circuit breaker module disposed on both sides of the electric leakage tripping pole module, wherein the L-pole circuit breaker module includes an L-pole moving contact mechanism; the N-pole circuit breaker module includes an N-pole moving contact mechanism; the electric leakage tripping pole module includes an electric leakage jump buckle, an electric leakage lock buckle, a resetting member, a rocker arm, an assembling shaft and a tripping device; the rocker arm abuts against the resetting member; the assembling shaft is in linkage with the L-pole moving contact mechanism and the N-pole moving contact mechanism; the rocker arm is connected to one side of the electric leakage lock buckle; at least one of the rocker arm and the electric leakage lock buckle can abut against the assembling shaft; and when the electric leakage jump buckle is separated from the electric leakage lock buckle, the resetting member drives the rocker arm to rotate, so that at least one of the rocker arm and the electric leakage lock buckle pushes the assembling shaft. The L-pole circuit breaker module and the N-pole circuit breaker module are disconnected at the same time, and thus the disconnection capacity is improved.

The invention relates to a preparation method of peppermint essence, which solves the problems of quick volatilization and poor durability of the traditional peppermint essence by optimizing the combination of essence components and a slow-release carrier by adopting a multi-layer microcapsule slow-release technology and a nanocapsule technology. According to the method, essence components such as menthol, menthone and leaf isovalerate are mixed with at least two layers of microcapsules, the outer layer microcapsules slowly release fragrance, the inner layer microcapsules quickly release fragrance, and it is ensured that the fragrance is kept for a long time in the using process. Meanwhile, the essence is uniformly dispersed in different carrier systems through ultrasonic-assisted emulsification by adopting a nanocapsule technology, so that the stability and dispersity of the essence are improved. In addition, the temperature-responsive and pH-responsive polymer materials are introduced, so that the release rate of the essence can be adjusted according to the external environment, and the adaptability of the essence is further enhanced.

A support structural member and a display device are provided by the present application. The support structural member includes: a support frame, having a screen body support surface, in which the support frame includes a first sliding support member and a second sliding support member arranged opposite to each other, and the first sliding support member and the second sliding support member are movably connected in a first direction; a driving portion, including a first driving mechanism, in which the first driving mechanism is configured to drive the first sliding support member and the second sliding support member to move relatively to each other in the first direction to drive the first sliding support member and the second sliding support member approach to or far away from each other. The present application can increase the stretching- and-shrinking speed of the support frame, and further can increase the unfolding speed and the storage speed of the display device.

The application relates to the technical field of heat exchange, and discloses a column-tube type heat exchanger for fluid heat exchange, which comprises a shell, the inside of the shell is uniformly distributed with inner mounting plates, the outside of the inner mounting plates is rotationally connected with outer mounting plates, the inside of the shell is provided with two inner end plates, the outside of the inner end plates is rotationally connected with outer end plates, the outside of one side of the outer end plates is fixedly connected with a ratchet wheel, the inside of the other side of the outer end plates is rotationally connected with a fixing frame, the upper end of a driving bin two is slidably connected with a sliding shaft, and the upper end of the sliding shaft is fixedly connected with a limiting block. Through the relative rotation of the outer mounting plates and the inner mounting plates, the window area and the flow position of the clear water flow channel formed between the outer mounting plates and the inner mounting plates continuously and dynamically change, the clear water in the shell is forced to continuously change the flow direction, the clear water is prevented from long-term flowing through the local heat exchange area along the fixed flow channel, the outer surfaces of all the heat exchange tubes can be fully contacted with the low-temperature clear water, and balanced and deep heat exchange of the whole tube area is realized.

The invention provides a preparation method of composite easy-to-eat gel based on gel skeleton reconstruction, which comprises the following steps: rinsing cooked fish meat with a NaCl solution, mixing with water, and crushing to obtain fish meat slurry; mixing functional grease with the egg white microgel particle solution, and performing high-speed shearing to prepare a high-internal-phase emulsion, so as to obtain a regulation and control assembly; and performing high-pressure homogenization treatment on the fish pulp, adding a regulation and control assembly while performing high-pressure homogenization treatment, and cooling to obtain the composite easy-to-eat gel. According to the invention, a protein-based gel network is reconstructed into a more complex cobweb-shaped gel skeleton from an ordered #-shaped structure, so that the regulation and control of the gel from flexibility to rigidity are realized, and the hardness, friction characteristics and the like of the composite easy-to-eat gel are regulated and controlled by changing the addition amount of the egg white microgel emulsion; the texture characteristics of the prepared composite easy-to-eat gel can be suitable for patients with different swallowing difficulty degrees, and the composite easy-to-eat gel has excellent storage stability.

The present invention relates to an antibody directed against a vascular endothelial growth factor (VEGF / VEGF-A) and angiopoietin-2 (ANG-2), respectively, a bispecific binding molecule (e.g., an antibody) directed against the vascular endothelial growth factor (VEGF / VEGF-A) and angiopoietin-2 (ANG-2) simultaneously, a preparation method therefor, a pharmaceutical composition comprising the antibody or molecule, and use thereof.

[PROBLEM] To provide a conjugate of an antibody and a functional substance or a salt thereof excellent in desired properties while controlling a binding ratio between the antibody and the functional substance within a desired range. [MEANS FOR SOLVING PROBLEM] A conjugate of an antibody and a functional substance or a salt thereof, which comprises a structural unit represented by the following formula (I): wherein Ig represents an immunoglobulin unit comprising two heavy chains and two light chains, and regioselectively forms an amide bond with a carbonyl group adjacent to Ig via an amino group in side chains of lysine residues in the two heavy chains, L1 and L2 each represent a divalent group, R1 represents a monovalent group optionally comprising a hydrophilic group, X represents a predetermined divalent group, D represents a functional substance, RA represents a side chain of a valine residue, RB represents a side chain of a citrulline residue or an alanine residue, n is 0 or 1, and an average ratio r of the amide bonds per two heavy chains is 1.5 to 2.5, and wherein at least one hydrophilic group is present in the structural unit.

The utility model relates to the technical field of brakes, and discloses a manual brake release device applied to a Tamagawa encoder, which comprises a motor shaft and a base, the motor shaft is rotatably mounted on the base, brake arms are further arranged on two sides of the base, the brake arms are arranged on two sides of the circumferential direction of the motor shaft, and a driving shaft rotating along with the motor shaft is further fixedly arranged on the motor shaft. A rotating shaft is rotationally connected above the driving shaft, the rotating shaft is connected with an air exhaust module, a rotating air brush shaft is arranged on the air exhaust module, and a plurality of bristles which are communicated with the air brush shaft and are provided with air holes are arranged on the air brush shaft; when air is exhausted from the air holes of the bristles, an air flow towards the surface of the motor shaft is generated, the air flow washes the surface of the motor shaft, and due to the direct action of the air flow, dust particles and heat on the surface of the motor shaft are blown by the air flow and taken away from the surface of the motor shaft. Therefore, the effects of cleaning and reducing the surface temperature of the motor shaft are achieved.

The utility model relates to the technical field of bearing measuring tools, in particular to a large-scale thrust self-aligning roller bearing raceway measuring tube ruler. The end face positioning pipe ruler head is detachably fixed to the pipe ruler body and provided with an end face fulcrum used for abutting against the end face of the ferrule. The raceway positioning pipe ruler head comprises a positioning fulcrum assembly hinged to the positioning moving rod, and the positioning fulcrum assembly comprises a positioning raceway supporting rod capable of rotating relative to the positioning moving rod so that the positioning raceway supporting rod can perpendicularly abut against the ferrule raceway. The raceway measuring tube ruler head comprises a measuring fulcrum assembly hinged to the measuring moving rod, and the measuring fulcrum assembly comprises a measuring meter fixing piece capable of rotating relative to the measuring moving rod so as to fix a measuring meter and enable the measuring end to make vertical contact with the ferrule raceway. According to the utility model, the rotation angles of the positioning raceway support rod and the measuring meter can be adjusted, the contact angle with the raceway is 90 degrees during measurement, the detection precision is improved, the product quality is improved, the retainer fitting process can be canceled, and the production efficiency is improved.

An object of the present invention is to provide a surface treatment agent that is excellent in antithrombogenicity and biocompatibility and has higher hydrophilicity compared to conventional medical materials. The present invention is an antithrombogenic material containing a (meth)acrylate copolymer consisting of a hydrophobic (meth)acrylate and a hydrophilic (meth)acrylate, in which the hydrophobic (meth)acrylate is a silicone (meth)acrylate and / or an alkyl (meth)acrylate, the (meth)acrylate copolymer having a residual monomer content of 4,000 ppm or less, a reduced viscosity (ηsp / c) of 0.18 dl / g or more and 3.00 dl / g or less, and being water-insoluble, and being a viscous liquid at room temperature.

The embodiment of the application discloses an asynchronous clock domain data read-write method and a first-in-first-out cache system, relates to the technical field of integrated circuits, and is invented to reduce the read-write data delay between asynchronous clock domains. The method comprises the following steps: writing to-be-written data into a write address; using the rising edge and the falling edge of a write clock of a write clock domain to sample the write address respectively, so as to obtain a rising edge address corresponding to the rising edge of the write clock and a falling edge address corresponding to the falling edge of the write clock; determining a to-be-synchronized address according to a predicted phase value, the rising edge address and the falling edge address; the predicted phase value is determined according to the phase difference between the write clock and a read clock in the mth write clock period; taking the to-be-synchronized address as the input of a first flip-flop, sampling the to-be-synchronized address through the read clock, and obtaining a synchronized address synchronized to the read clock domain; and reading the data in the first-in-first-out memory based on the synchronized address. The application is suitable for transmitting data.

The invention relates to a method for the depolymerization of a terephthalate polyester, for example a PET polymer. The method comprises the steps of: a) contacting a terephthalate polyester with methanol and dimethyl terephthalate, DMT; and b) heating the mixture of the terephthalate polyester, methanol and DMT in the presence of a catalyst suitable for catalyzing the depolymerization of the terephthalate polyester.

Disclosed is a dispersing device, including a first shear device and at least two second shear devices, one of the first shear device and the second shear device is a shear stator and the other is a shear rotor. The first shear device includes a shear inner ring, a shear outer ring and an annular isolation board. The shear inner ring is provided with a plurality of first radial through holes; the shear outer ring is provided to surround outside the shear inner ring, and is provided coaxially with the shear inner ring and connected in linkage with each other; and the shear outer ring is provided with a plurality of third radial through holes. The annular isolation board is located between the shear inner ring and the shear outer ring, and both opposite ends of the annular isolation board form shear receiving grooves, respectively. The second shear device has a shear embedded ring, the shear embedded rings of each of the second shear devices are respectively embedded in one of the shear embedded rings, and the shear embedded ring is provided with a plurality of second radial through holes. The dispersing device has a larger volume of a dispersing region and a higher shearing efficiency to slurry in the case of the same volume of the pulping machine. The present application also discloses a pulping machine.

The present disclosure provides a wafer processing device, a wafer processing system and a control method. The wafer processing device includes a driving unit, a transfer chamber, a plurality of process chambers and a bearing assembly; the bearing assembly is arranged in the transfer chamber, the process chamber is coupled to the transfer chamber, the process chamber is used for processing wafers, the bearing assembly is used for supporting the wafer, the driving unit is used for adjusting a position of the bearing assembly in the transfer chamber, and the driving unit is further used for driving the bearing assembly to move between the transfer chamber and the process chambers. The wafer processing device of the present disclosure can directly transport the wafers to be processed to the process chambers by the driving unit for the processing treatment, and can retain or transfer the wafers to be transferred or not to be directly processed in the transfer chamber, thus reducing the time of wafers occupying the working station due to different groups of wafers waiting for process, which will speed up the processing efficiency of the wafers and provide basic conditions for synchronously processing groups of wafers by the transfer chamber and the bearing assembly.

The utility model relates to the field of adhesives, in particular to a polyphenylene sulfide high-temperature-resistant adhesive tape which comprises an inner core, an adhesive tape body is arranged on the surface of the inner core, and the adhesive tape body comprises a protective layer, an anti-corrosion layer, an adhesive layer, a waterproof layer and a dustproof layer. Through the arrangement of the protective layer, the adhesive tape main body has certain high-temperature resistance, the situation that when the adhesive tape is used under the high-temperature condition, due to the high temperature, a viscous material on the adhesive tape is softened or melted, the viscosity of the adhesive tape is weakened, and an object cannot be effectively bonded or fixed is avoided, and through the arrangement of the bonding layer, the bonding layer can have certain high-temperature resistance; when the adhesive is used in a high-temperature environment, certain adhesiveness can be kept, and the retention time of object adhesion is prolonged.

The invention relates to a transistor structure and a forming method thereof. The transistor structure comprises a first dielectric layer and a second dielectric layer, wherein the first dielectric layer comprises a passivation oxygen vacancy; the active layer is located on the surface of the first dielectric layer, and the active layer comprises a channel region and a source-drain region located on the outer side of the channel region; the gate layer is positioned on one side, deviating from the first dielectric layer, of the channel region; and the barrier layer is located between the first dielectric layer and the source-drain region, and the barrier layer is used for preventing oxygen from entering the source-drain region. According to the transistor structure, the threshold voltage of the transistor structure is enabled to move positively, and the sub-threshold swing of the transistor structure can be reduced, so that the response speed of the transistor structure is improved, and the RC delay is prevented from being increased.

The present application discloses a power supply circuit, a power supply control method and an electronic device, wherein the main control circuit in the power supply circuit is used to detect the voltage effective value and voltage instantaneous value of the AC input signal of the AC power supply and the DC output signal output by the rectifier circuit to the load circuit, so as to generate a first control signal based on the DC output signal, and in response to the voltage effective value being lower than the first threshold range, generate a second control signal according to the voltage effective value, the voltage instantaneous value and the first control signal; the inverter circuit receives the first control signal, the switch regulation circuit receives the second control signal, and adjusts the short-circuit state of the secondary winding based on the second control signal, so as to utilize the primary winding and the secondary winding to enhance the energy storage of the resonant circuit, and utilize the energy storage to extend the holding time of the DC output signal within the second threshold range. Through the above-mentioned method, the power supply circuit of the present application can effectively realize power-off retention, and the implementation cost is low, the volume is small, and the energy loss is low.

The invention provides a high-aroma vegetable wax preparation, a preparation method and application, and relates to the field of candles and manufacturing thereof.The wax preparation comprises composite shea butter, mineral wax and essence, and the content of the essence reaches 15% or above. The high-aroma plant candle can be obtained only by using the shea butter wax, the mineral wax and the essence, and the prepared candle is good in combustion performance, fine and smooth in paste body, compact in crystal, free of essence precipitation and free of greasy dirt packaging.

The present disclosure provides a device and method for producing a thin-film catalyst. The device includes a vacuum chamber, a plurality of evaporators, a plurality of gas guide pipes, an ion generator, and a control unit. The plurality of evaporators are configured to evaporate at least one film material. The plurality of gas guide pipes are configured to introduce a reactive gas. The ion generator is configured to ionize the reactive gas and the evaporated film material. The control unit is configured to control the vacuum chamber to be vacuumed, control at least two evaporators of the plurality of evaporators to be simultaneously started, control the plurality of gas guide pipes to introduce the reactive gas, and control an ion source current of the ion generator to be adjusted, such that the evaporated film material reacts with the reactive gas to form a catalytic film layer on a surface of a substrate through vapor deposition. The present disclosure can solve the problem that the existing technologies for producing medium-entropy alloy (MEA) / high-entropy alloy (HEA) thin-film catalysts and multi-metallic element ceramic thin-film catalysts have disadvantages such as low production efficiency, long film-forming time, high cost, and heavy pollution, and are difficult to allow the large-scale industrial production.

A charging method of an energy storage power supply, a charging apparatus therefor, a device and a medium are provided. The charging method includes: obtaining a voltage of each of a plurality of cells in a battery pack of a battery module; and charging the battery module by selecting, based on a minimum voltage among the voltages of the plurality of cells, a corresponding charging scheme. The corresponding charging scheme includes a first charging scheme and a second charging scheme.

By changing the traditional carrying method and backpack straps, the deltoid muscles of the shoulders are used as the load-bearing points of the backpack. Through the combination of shoulder pads (1), shoulder pad air cushions (2), three-way backpack straps (3) and other accessories, the vertical load-bearing mode of the trapezius muscles of the shoulders is changed to the three-way load-bearing mode of the deltoid muscles of the arms. Three key innovative technologies are used to avoid the trapezius muscles, which are prone to fatigue when under load, and to transfer the weight of the backpack to the deltoid muscles of the shoulders, forming a three-way load distribution carrying system on the shoulders and chest. This makes the trapezius muscles of the shoulders no longer feel sore when carrying heavy objects, allowing us to carry heavy items for a long time. When carrying more items and outdoor equipment such as tents during outdoor rescue, field research, hiking, etc., it feels easier, the carrying time is longer, and more items can be carried.

The present disclosure provides an ibuprofen controlled-release tablet and a method for preparing same. The controlled-release tablet is composed of a drug-containing immediate-release layer and a drug-containing sustained-release layer, wherein a mass of the ibuprofen in the drug-containing sustained-release layer is greater than a mass of the ibuprofen in the drug-containing immediate-release layer, and a ratio of the mass of the ibuprofen in the drug-containing sustained-release layer to the mass of the ibuprofen in the drug-containing immediate-release layer is ≤7. The tablet of the present disclosure has an effective analgesic effect for 24 h after administration.

The present application discloses an artificial graphite, a preparation method therefor and the use thereof. A method for preparing an artificial graphite of an embodiment of the present application comprises the following step: subjecting a graphite raw material to a heat treatment to obtain the artificial graphite, wherein an environmental atmosphere for the heat treatment is at least one gas of air and carbon dioxide or a mixed gas of at least one gas of air and carbon dioxide and a chemically inert gas; and during the heat treatment, the graphite raw material is in a static state. The method for preparing an artificial graphite of an embodiment of the present application realizes at least modifying a surface of the graphite raw material by controlling the heat treatment conditions for the graphite raw material, such that the prepared artificial graphite has an appropriately low compaction rebound capacity, a high and stable compacted density, and a good cycling performance. The artificial graphite of the present application can be used as a negative electrode active material and used in negative electrodes and batteries.

The utility model discloses an electric bicycle hub motor and wheel structure beneficial to sliding. The electric bicycle hub motor and wheel structure comprises a motor and a rim. The motor comprises a motor main shaft and a motor shell, and the motor shell is rotatably mounted on the motor main shaft; the device further comprises a one-way clutch component and a motor mounting box. The motor mounting box comprises a rim shell and a rim shell cover; the motor is mounted in the motor mounting box, and the rim shell and the rim shell cover are rotatably mounted on a motor main shaft; the rim is fixedly connected with a rim shell of the motor mounting box through a connecting piece; the one-way clutch component is connected between the motor shell and the rim shell cover. The electric bicycle has the advantages that when the motor stops working during downhill sliding of the electric bicycle, the friction coefficient between the wheel and the motor is extremely low, the wheel can continuously and freely rotate inertially, and the motor cannot be driven to rotate even if the wheel is driven to rotate during riding, so that the inertia sliding time is long, and the sliding distance is long.

Disclosed is a method for preparing paraxylene by biomass conversion, comprising the following steps: (1) contacting a biomass starting material with a hydrogenation catalyst for reaction in a multiphase system formed by an organic solvent, an inorganic salt and water, in the presence of hydrogen as a hydrogen source, and separating the resulting product to obtain an organic phase comprising 2,5-hexanedione; and (2) contacting the organic phase comprising 2,5-hexanedione obtained in the step (1) and ethylene with a molecular sieve catalyst for reaction to obtain paraxylene, wherein the molecular sieve catalyst is at least one selected from the group consisting of aluminophosphate molecular sieves and SCM-14 molecular sieves. The method is simple in operation, has the advantages of high product selectivity, good catalyst stability, easy product separation, few reaction steps and short time, and can realize green and efficient conversion from biomass to pX.

The present invention relates to a method for preparing nano ZrO2 / HfO2 and metal nanoparticles. Firstly, an initial alloy mainly composed of Zr / Hf and Al / Zn is prepared using metal raw materials; Dissolve the initial alloy in a hot alkaline solution to obtain an intermediate solution; Then reduce the alkaline concentration or (and) temperature of the intermediate solution to allow the solid flocculent products containing Zr / Hf to precipitate from the intermediate solution after the concentration or (and) temperature is reduced, resulting in low crystalline nano ZrO2 / HfO2; By further heat treatment, crystalline nano ZrO2 / HfO2 was obtained. When precious metal elements are dissolved in the initial alloy, this method can also be used to prepare metal nanoparticle doped nano ZrO2 / HfO2; After removing the nano ZrO2 / HfO2 from the composite product, metal nanoparticles were further prepared.

The present invention aims to provide a thermoplastic polyester elastomer having particularly excellent extrusion moldability and extrusion molding stability, from which a hollow and long molded article can be stably produced with a uniform thickness for a long time. A polyester elastomer comprising a hard segment made of a polyester constituted of an aromatic dicarboxylic acid and an aliphatic or alicyclic diol and a soft segment made of an aliphatic polycarbonate, wherein the hard segment and the soft segment are bonded to each other, wherein the polyester elastomer is at least partially end-capped with a reactive compound, wherein the reactive compound comprises a polycarbodiimide, wherein the polyester elastomer has an acid value of 15 eq / ton or less, and wherein, under a condition of 230°C, the polyester elastomer satisfies (i) the melt viscosity at a shear rate of 10 / sec after a preheating time of 5 minutes is 1, 800 Pa·s or more, and the melt viscosity at a shear rate of 1,000 / sec after a preheating time of 5 minutes is 800 Pa·s or less; and (ii) a ratio of the melt viscosity measured at a shear rate of 10 / sec after a preheating time of 5 minutes to the melt viscosity measured at a shear rate of 10 / sec after a preheating time of 25 minutes is 0.7 to 1.3.

The invention discloses a single-molecule spin initiator based on a metal complex, a polymer with quantum coherence characteristics and a preparation method of the polymer. The invention provides a series of single-molecule spin initiators containing metal-porphyrin or metal-phthalocyanine complexes at the centers, a polymer with quantum coherence characteristics and a preparation method of the single-molecule spin initiators. The preparation method of the metalloporphyrin or phthalocyanine single-molecule spinning polymer comprises the following step: reacting a metalloporphyrin or metal phthalocyanine initiator with a monomer compound to obtain the polymer with quantum coherence property. According to the metalloporphyrin or metal phthalocyanine initiator provided by the invention, interaction between molecular spacing and spinning can be regulated and controlled by controlling the chain length and chemical composition of a polymer, and the polymer matrix-dependent quantum coherence characteristic is shown in a solid state; the method has wide application in the technical fields of quantum calculation, quantum sensing, quantum information and biomedicine.