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An overcurrent protection circuit includes a current limiter and a status detector, and a voltage regulator includes an output transistor. The output transistor is configured to regulate a voltage input to an input terminal to output a given constant voltage from an output terminal, while passing a current from the input terminal to the output terminal according to a control signal applied thereto. The current limiter reduces the current passed through the output transistor when the passed current exceeds a given current limit. The status detector is configured to generate a status signal indicating operation of the current limiter. A constant voltage regulator incorporating the overcurrent protection circuit is also disclosed.

The invention discloses a recovery utilization method of plastics, and the method comprises the following steps: crushing recovered plastics, adding the plastics into cleaning fluid and paint removing fluid to conduct ultrasonic cleaning and paint removing, then stirring and cleaning the plastics with water, and baking the plastics to obtain pretreated plastics; taking and adding the pretreated plastics, a toughener, an antiaging agent, a light stabilizer and the like into a high speed mixer, and conducting stirring and mixing to obtain a mixture; and adding the obtained mixture into an ultrasonic extrusion integrated device to conduct extrusion granulation and produce molded products. The recovery utilization method of plastics can solve the problem of difficulty in removing the impurities from the waste plastics, and simultaneously can improve the utilization efficiency of the waste plastics; the cleaned and paint-removed waste plastics are used as a main raw material and matched with auxiliaries to produce plastic particles; and the prepared plastic particles have excellent mechanical properties and can be used for producing other plastic products. The recovery utilization method of plastics has the advantages of extensive sources of materials, low cost and simple process requirements, recovers the waste plastic resources, simultaneously can create larger economic value, realizes regenerative utilization of the waste plastics, and reduces environmental pollution.

An air electrode, executes the multilayer sintering structure, is composed of at least one layer of base material, two layers of diffused layer and an activating layer coincidence. The base material is the current collector of the air electrode and is made of the metal gauze or metal blister gauze, the upper and the lower sides respectively superpose at least a diffused layer sintered by hydrophobicity carbon material, superpose at least a activating layer outside the diffused layer, every activating layer is sintered by hydrophilicity carbon material adhered with transition metal oxide catalysis; this air electrode can be applied to zinc air battery, negative pole of firing battery or capacitance, especially when applied to the negative pole of zinc air battery, it can avoid the external air influence on the electrolyte in the zinc air battery, in the dry environment, it can maintain the water ratio of zinc positive pole of air battery more than one month, and maintain the stable electric performance.

The invention provides a functional desmosome profile control agent and a preparation method and application thereof.The functional desmosome profile control agent is prepared from, by weight, 0.5%-11% of functional desmosome profile control agent particles, 0.1%-1% of guanidine gum and the balance water, wherein the total weight of the functional desmosome profile control agent is 100%, the functional desmosome profile control agent particles comprise inner cores, thermal swelling crosslinking resin films and semi-permeable protective films, the surfaces of the inner cores are wrapped by the thermal swelling crosslinking resin films, and the surfaces of the thermal swelling crosslinking resin films are wrapped by the semi-permeable protective films.The invention further provides the preparation method of the functional desmosome profile control agent and application of the functional desmosome profile control agent in oil well deep profile control.The functional desmosome profile control agent has the characteristics of temperature resisting, salt resisting, swelling delaying, crosslinking under heating and the like and is a novel profile control agent which is convenient to construct and easy to operate.

The invention discloses a liquid crystal mixture and a preparation method thereof, a light cut-off component and a preparation method thereof as well as a display device. The liquid crystal mixture comprises liquid crystal molecules and a chiral additive with certain concentration, wherein the chiral additive is mixed among the liquid crystal molecules, the liquid crystal molecules are in a cholesteric phase, so that the liquid crystal mixture reflects light waves in a reflection wavelength range. According to the embodiment of the invention, a light wave reflection band is controlled through design of a liquid crystal structure, so that passing of the light waves in the reflection band is reduced directly and effectively. For example, the band of reflected blue light can be controlled, so that passing of the blue light is reduced directly and effectively, and possible harm of the blue light to eyes is reduced.

The invention provides a solid beverage formula. The formula comprises black fungus extract, fructo-oligosaccharide, inulin and probiotic powder, and also comprises buckwheat oligopeptide. The invention also provides a preparation method of the solid beverage formula for losing weight, improving diarrhea and regulating flora. The invention further provides applications of the solid beverage formula in the preparation of foods for losing weight or improving diarrhea or regulating flora, or special foods or medicines.

The invention discloses a rapid optimization method for a power battery air cooling system runner interval. The method comprises the steps that beginning from the uniform runner interval, velocity distribution of an air cooling system is solved through numerical values, by analyzing the flow distribution between cooling runners, the runner with the minimum flow and the runner with the maximum floware determined, then, the interval of the runner with the minimum flow is increased, and the interval of the runner with the maximum flow is decreased; speed distribution of the system is calculatedagain every time the runner interval is adjusted, and therefore the next runner interval adjustment is performed; when the frequency for runner interval adjustment reaches the set frequency, the layout of the runner interval with the minimum cooling runner equivalent flow standard deviation in the process is adjusted, and the final runner interval optimization result is obtained. The rapid optimization method has the advantages of being simple in optimization process, high in optimization speed, good in performance index, good in expansibility, high in practicability and the like.

The invention discloses a steel belt corrugated pipe and a preparation method thereof. The steel belt corrugated pipe comprises an inner layer, a steel belt and an outer layer, the steel belt is positioned between the inner layer and the outer layer, and each of the inner layer and the outer layer is prepared from, by weight, 80-93 parts of polyvinyl chloride and polyethylene blend, 7-11 parts ofsolubilizer, 0.1-0.5 part of antioxidant, 1-3 parts of plasticizer, 5-8 parts of reinforcing material and 0.5-1.2 parts of stabilizer. The steel belt corrugated pipe has the advantage of excellent performance. The preparation method includes: mixing raw materials, and melting at 140-180 DEG C for 15-25min to obtain melt; treating the steel belt: uniformly coating the surface of the steel belt withadhesive resin; utilizing hot melt connecting technology to complete adhesive compositing of the melt and the steel belt with the adhesive resin, and cooling for shaping to obtain the steel belt corrugated pipe. The preparation method has the advantages of being simple in preparation step, convenient in operation, easy in implementation, convenient for mass production and environment-friendly.

The invention provides earphones that provide a user with a choice of selectable, stable positions from which a wire exits the earphone. When the wire exits in an “up” position, it favors winding over the ear to a source or transmitter of electrical sound information. When the wire exits in a “down” position, it does not favor winding over the ear. The wire exits the earphone about parallel to the side of the user's face so that it does not protrude in an unsightly or unstable manner.

The invention provides a breathing mask which can fill a clearance along the shape of a face without other components and has high portability. The breathing mask (1) is formed by porous polyurethanefoam. The breathing mask (10) has a body part (11), hanging ear parts (12) and a projected part (13). The body part (11) covers the mouth and nostrils of the face. The hanging ear parts (12) are seamlessly and integrally connected with the body part (11) from two ends of the body part (11) and extend to the ear (26) side of the face (24) and have openings (25) which can be hanged on the ears (26).The projected part (13) is seamlessly and integrally connected with the body part (11) and projects to the eye side of the face (24). The projected part can be turned back to the face (24) side of the body part (11) and contacts with the face (24) through self elasticity.

The invention relates to a treatment method for fermentation of kitchen waste into a fertilizer. The method mainly improves the treatment effects of a kitchen waste treatment machine from two aspects, and ferments kitchen waste to produce a bio-fertilizer. The method includes: (1) artificially adding Acinetobacter calcoaceticus strain B40 in a kitchen waste treatment process, with the adding amount reaching over 10<5>CFU per gram of kitchen waste; and (2) employing a composite adsorbing material to adsorb pungent smell generated in the fermentation process. The composite adsorbing material is composed of rice bran, sawdust and activated carbon in a ratio of 10-20:3-5:1. The bio-fertilizer produced by the method has the characteristics of low oil content and small pungent smell during production.

The invention discloses a high-adaptability led power supply with adjustable power. The high-adaptability led power supply comprises a bottom block, wherein an opening cavity with a downward opening is fixedly arranged in the bottom block, isolation blocks are symmetrically and fixedly arranged in the left end wall and the right end wall of the opening cavity, a winding set is fixedly arranged ineach isolation block, a conductive electrode is fixedly arranged on the outer surface of each winding set, a conductive wire penetrating through the upper end wall of the opening cavity is fixedly arranged on the upper end surface of each conductive electrode, insulating blocks are fixedly arranged on the left end wall and the right end wall of the opening cavity in a left and right symmetric mode, a guide rod is fixedly arranged between the insulating blocks, and a conductive block is fixedly arranged on the outer surface of the guide rod. The high-adaptability led power supply is simple in structure and convenient to use, the equipment adopts an automatic mode to adjust the illumination brightness, so that the energy utilization rate is improved, and meanwhile, a switchable motion mechanism is adopted, the flexible control of a barrier is realized, so that the working range and the efficiency of the equipment are improved, and the reliability of the equipment is improved.

The invention relates to the technical field of sintering, in particular to a sintering machine grate anti-paste and anti-block method which comprises the following steps: controlling the total quantity of elements K and Na in a sintering mixture not greater than 1.5kg/t; paving a first grate-layer material on a sintering machine grate and paving a second grate-layer material on the first grate-layer material, wherein the particle size of the second grate-layer material is smaller than that of the first grate-layer material; and reducing the negative pressure of 3-5 air boxes in font of the final point by 10-30%. With adoption of the sintering machine grate anti-paste and anti-block method, the dust content of exhaust gas at a drying high-temperature section is reduced, number of particulate matters penetrating through the grate is reduced, and generation of the grate pasting and blocking phenomenon is restrained.

The invention relates to a compound analgin injection for livestock and a preparation method thereof. Every 100ml of injection comprises 10-30g of analgin, 2-4g of L-cysteine, 50-150mg of dexamethasone sodium phosphate, 0.05g of EDTA-Na2, water for injection to 100mg, and pH regulator (for regulating the pH value to 5.5-6.5). The preparation method comprises the following steps: dissolving dexamethasone sodium phosphate to prepare a solution, dissolving the other components into a solution, merging the two solutions, stirring uniformly, regulating the pH value to 5.5-6.5 while continuing stirring, and diluting to the specified volume; and filtering the liquor through an organic filter membrane, respectively filling the filtrate into bottles by a filling and sealing machine, sterilizing at 115 DEG C under the pressure of 0.2 MPa for 20 minutes, opening the sterilizing cabinet, naturally cooling for 10 minutes, closing the sterilizing cabinet, and sterilizing again for 20 minutes, thereby obtaining the finished product. The invention solves the problems of discoloration, content degradation, toxicity increase and the like in the injection storage process. The invention has better antipyretic effect, and is endowed with anti-inflammatory and antiallergic functions. The invention improves the appearance quality and curative effect of the product. The invention is more convenient to use, and has wider application range.

The present invention discloses a single-phase bridge type rectifying filter circuit which comprises a transformer T, a rectifying circuit and a load RL that are successively connected. Two ends of the transformer T are respectively connected with a signal input end Vin and a signal output end Vo. The rectifying circuit is a single-phase bridge type rectifier. The single-phase bridge type rectifier comprises four diodes, namely a D1, a D2, a D3 and a D4. The input end of the diode D1 is connected with the input end of the diode D2. The output end of the diode D1 is connected with the input end of the diode D3. The output end of the diode D2 is connected with the input end of the diode D4. The output end of the diode D3 is connected with the output end of the diode D4. A capacitor C is parallelly connected with two ends of the load RL. The single-phase bridge type rectifying filter circuit with the structure can acquire stable rectifying and filtering effect, thereby improving efficiency of the transformer. Simultaneously, on condition of same power capacity, the size of the transformer can be designed to be smaller.

The invention relates to the technical field of windows, in particular to a side pulling structure capable of being tightly closed for a door and window cabinet. The side pulling structure comprises a frame, a fixed window sash and a movable window sash; grooves matched with the fixed window sash and the movable window sash up and down are formed in the frame, a front protection plate and a rear protection plate are arranged on the front end face and the rear end face of the groove respectively, the rear end of the fixed window sash abuts against the rear protection plate, and a gap is reserved between the fixed window sash and the front protection plate; first supporting parts and second supporting parts are installed on the upper side and the lower side of the movable window sash correspondingly; the first supporting parts are installed at the inclined face end of the movable window sash, and the second supporting parts are installed at the non-inclined-face end of the movable window sash; each first supporting part comprises a connecting rod connected to the movable window sash, a bearing wheel installed at the bottom of the connecting rod and a first guide wheel installed on the side wall of the connecting rod; and the right side of each groove is provided with a guide plate which is triangular in an overhead view. The side pulling structure is flexible in opening and closing and stable in sliding, the inclined faces of the window sashes on both sides are in close contact with each other when the window sashes are closed, so that the possibility that air, dust and the like pass through is reduced, and the sealing and sound insulation effects are improved.

A high tensile strength steel wire having as steel composition: a carbon content ranging from 0.20 weight percent to 1.00 weight percent, e.g. from 0.3 weight percent to 0.85 weight percent, e.g. from 0.4 weight percent to 0.7 weight percent, e.g. from 0.5 weight percent to 0.6 weight percent, a silicon content ranging from 0.05 weight percent to 2.0 weight percent, e.g. from 0.2 weight percent to 1.8 weight percent, e.g. from 1.2 weight percent to 1.6 weight percent, a manganese content ranging from 0.40 weight percent to 1.0 weight percent, e.g. from 0.5 weight percent to 0.9 weight percent, a chromium content ranging from 0.0 weight percent to 1.0 weight percent, e.g. from 0.5 weight percent to 0.8 weight percent, a sulfur and phosphor content being individually limited to 0.05 weight percent, e.g. limited to 0.025 weight percent, contents of nickel, vanadium, aluminum, copper or other micro-alloying elements all being individually limited to 0.5 weight percent, e.g. limited to 0.2 weight percent, e.g. limited to 0.08 weight percent, the remainder being iron, said steel wire having martensitic structure, wherein at least 10 volume percent of martensite are oriented.

A manufacturing method for wide-range fine-grained magnesium alloy thin-sheet material is disclosed. The method includes an extrusion process and a rolling process. By the plastic deformation feature of the two processes, the wide-range fine-grained magnesium alloy thin-sheet material that satisfies the requirement of cases of 3C products with thickness of less than 1 mm is produced. Thus the method overcomes shortcomings of a conventional method that produces the material by a plurality passes of processes. Therefore, the manufacturing cost is reduced and the method is able to be applied to various industries.

A multifunctional fuel magnetizer comprises an end cover, an outer barrel, an outer barrel rear cover and a magnetizing device arranged in the outer barrel; the upper end of the magnetizing device isconnected to the end cover through a core cover connecting body; the lower end of the magnetizing device is tightly pressed into the outer barrel through a core body rear cover; the magnetizing devicecomprises a central screw, a magnetic energy core body, a magnetic permeable core body tube and a core body protection sleeve which are sequentially connected from inside to outside in a nesting mode; a cavity between the core body protection sleeve and the outer barrel forms a dirt intercepting cavity; the magnetic permeable core body tube and the core body protection sleeve are in close fit andare magnetically permeable; and the outer surface of the magnetic permeable core body tube is provided with a groove which is repeatedly circuitous up and down, and a magnetizing cavity is formed. Apermanent magnet ring body is isolated from fuel, the permanent magnet ring body is effectively prevented from being corroded by the fuel, the large-sized permanent magnet ring body can be arranged, the fuel passes through the magnetizing cavity and is repeatedly cut through magnetic lines of force, the oil channel passing cross-sectional area is adjusted by controlling the depth and width of thegroove, the fluid flow rate is increased, and the high magnetic strength and high flow rate are both achieved, so that the best magnetizing effect and combustion effect are achieved.

The invention discloses a disassembly type poultry farm feed conveying pipeline convenient to clean. A main pipe is included, and is internally provided with an inner pipe; the middle position of theouter wall of the inner pipe is fixedly connected with the inner wall of the main pipe through a crescent plate; the two ends of the inner pipe and the two ends of the main pipe are each provided withan opening groove; a sleeve is installed on the end portion of the main pipe in cooperation; and the side edges of the middle positions of the main pipe and the inner pipe are each provided with an installing hole. The manner that the main pipe and the inner pipe are combined is adopted for the disassembly type poultry farm feed conveying pipeline convenient to clean, and connecting and installing of a combined pipeline are facilitated; the branch pipe position is provided with a sleeve head, and under the condition that no valve is added extra, circulating of media in the pipeline is automatically controlled; and an installing manner of threaded connection is adopted, disassembling and cleaning are convenient, and the problem that because interior media remain for a long time, metamorphism and the like are caused are solved.