Catalyst for pyrolyzing coking wastewater by using converter high-temperature flue gas

The invention relates to a catalyst for pyrolyzing coking wastewater by using converter high-temperature flue gas and an application method thereof, belonging to the technical field of ferrous metallurgy and chemistry. The chemical formula of the catalyst comprises the following materials in percentage by weight: 6.50-12.50% of titanium potassium oxalate, 4.80-10.00% of 18-niobium tungsten manganese phosphate, and the balance of water. After the materials are weighted according to determined formula contents, the titanium potassium oxalate is added into the water to uniformly stir firstly, then the 18-niobium tungsten manganese phosphate is weighted and added into the water, and the obtained product is uniformly stirred. The application method is implemented through the steps of when the catalyst is used, adding the catalyst into coking wastewater in a ratio that the catalyst accounts for 0.1% mass percent of the coking wastewater, and then uniformly stirring the obtained product. The invention ...

Hydrogel corneal contact lenses drug carrier

The invention discloses a hydrogel corneal contact lens drug carrier, which is prepared by polymerization of a double bond-containing chitosan derivative, hydroxyethyl methacrylate and N-vinyl pyrrolidone in the presence of an initiator. Terpolymer hydrogel provided by the invention has good water absorbing swelling and transparence after polymerization, no obvious deformation, good water retention properties, high oxygen permeability value, large amount of drug loading, and stronger anti-protein adsorption ability than that of bipolymer hydrogel. The performances of the novel hydrogel corneal contact lens drug carrier with good oxygen permeability and controlled release drug capabilities meet the basic requirements of corneal contact lens, the release of eyedrops can be controlled, and the social and economic benefits are greater.

Preparation method of novel medical hydrogel dressing

The invention discloses a preparation method of a novel medical hydrogel dressing. The method comprises the following steps of: preparing a material for preparing the novel medical hydrogel dressing; adding a water-soluble polymer, a functional monomer, a dehydrating agent, a polymerization inhibitor and a catalyst to a reaction kettle to evenly agitate; heating and refluxing, distilling to remove a solvent and unreacted functional monomer to obtain a hydrogel monomer; mixing the hydrogel monomer with water; adding an initiator, coating on net high-density polyethylene after evenly mixing; and putting the material prepared from the step 4 into an oven to polymerize and prepare the hydrogel dressing. According to the method disclosed by the invention, polyethylene glycol (PEG) and the functional monomer are taken as materials; crosslinking polymerized PEG monomer is prepared by alkyd reaction; and the crosslinking polymerized PEG is taken as the monomer; water is taken as medium. Thus, the ...

Manganese-series layered lithium-rich cathode material, preparation method thereof and applications thereof

The invention discloses a manganese-series layered lithium-rich cathode material and a preparation method thereof. The general chemical formula of the manganese-series layered lithium-rich cathode material provided by the invention is xLi2MnO3.(1-x)LiMn2, wherein 0 Подробнее

Optical Kerr-gate gating framing camera and imaging method

The invention relates to an optical Kerr-gate gating framing camera and an imaging method, and aims at overcoming the defect that electric pulse gating is not fast enough in an existing framing camera and an existing imaging method. Gating gate signals are formed by means of non-linear action of pulse laser in an optical Kerr medium, high-precision time synchronization and a large dynamic image collecting system are combined, an aperture-array and pumping light delay are used, multiple orderly image arrays at fixed time intervals are obtained on a detected image plane, and therefore the novel framing camera is formed. The optical Kerr-gate gating framing camera and the imaging method can achieve high-speed gating gates from a picosecond magnitude to a femtosecond magnitude, and achieves high temporal resolution of infrared wave bands, visible wave bands and ultraviolet wave bands.

Injectable oxidized graphene or graphene composite hydrogel and preparation method thereof

The invention discloses injectable oxidized graphene or graphene composite hydrogel and a preparation method thereof. The composite hydrogel is formed by mixing a water soluble oxidized graphite or graphene solution with a drug solution and an Alpha-cyclodextrin aqueous solution and then standing. The composite hydrogel is injectable, the entire mechanical property of the composite hydrogel is slightly better than that of noumenal hydrogel, the highest carrying capacity of camptothecin in the composite oxidized graphene hydrogel can reach 50Mug/mL, the highest carrying capacity of camptothecin in the graphene hydrogel can reach 70Mug/mL, almost all the drug mixed in the solution can be loaded in the hydrogel, and the composite hydrogel is better than the noumenal hydrogel in controlling the drug to release slowly and stably.

Method for synthesizing and preparing novel composite hydrogel dressing

The invention discloses a novel method for preparing wet hydrogel dressing and synthesizing a hydrogel monomer. The method comprises the following steps of: modifying the tail end of PEG (Polyethylene Glycol) with acrylic acid by virtue of alcohol acid reaction to obtain PEGDA (Polyethylene Glycol Diacrylate); compounding the PEGDA solution and latticed high density polyethylene; and initiating polymerization by using ammonium persulfate/tetramethylethylene diamine to form novel composite hydrogel dressing. According to the method, latticed high-density polyethylene and PEG hydrogel are compounded to prepare composite hydrogel dressing, so that the defect that the hydrogel is poor in mechanical performances is effectively overcome, and novel wet dressing is provided for traumatic skin. The technical measures of modifying the tail end of the PEG with acrylic acid by virtue of the alcohol acid reaction to obtain PEGDA, and compounding the PEGDA aqueous solution and the latticed high-density ...

Composite hole sealing agent for thermal sprayed coating and using method for composite hole sealing agent

The invention discloses a composite hole sealing agent for a thermal sprayed coating and a using method for the composite hole sealing agent. The composite hole sealing agent comprises three layers, namely the bottom layer of hole sealing agent, the middle layer of hole sealing agent and the top layer of hole sealing agent, wherein the bottom layer of hole sealing agent consists of H2O, SiO2, AL2O3 and CrO3; the middle layer of hole sealing agent consists of H2O and CrO3; and the top layer of hole sealing agent consists of H2O, BN and CrO3. The using method comprises the following steps of: uniformizing the bottom layer of hole sealing agent by a brush coating method, thinly coating the uniformized bottom layer of hole sealing agent on the surface of the thermal sprayed coating to ensure that the uniformized bottom layer of hole sealing agent fully permeates into holes of the coating, and curing the thermal sprayed coating subjected to hole sealing at the temperature of 450 to 500 DEG C ...

Special corrosion inhibitor for pyrolyzing and coking waste water flue gas by using high-temperature flue gas of converter

The invention relates to a special corrosion inhibitor for pyrolyzing and coking waste water flue gas by using high-temperature flue gas of a converter, and an application method of the special corrosion inhibitor. Chemical formulation range of catalyst is as followings in percent by weight: 1.0 to 8.0 percent of rosin imidazoline quaternary ammonium salt, 35.0 to 55.0 percent of oleinic acid imidazoline, 8.0 to 17.0 percent of alkylphenol polyoxyethylene, and 20.0 to 50.0 percent of ethylene-glycol, adding a certain quantity of ethylene-glycol after content weighing sequentially, fully resolving and stirring uniformly once a material is added and then adding next material, and stirring uniformly. The formula of the catalyst is simple, the effect is obvious, the cost is low, the application method is simple, the special corrosion inhibitor and the method are suitable for pyrolyzing and coking waste water by using high-temperature flue gas of converter, and the corrosion inhibitor can be ...

Preparation method of self-repairing POSS/microcapsule composite film

The invention relates to a preparation method of a composite film, particularly a preparation method of a self-repairing POSS/microcapsule composite film, which solves the technical problems generated by microcracking of microcapsules. The method comprises the following steps: 1. preparing a POSS gel; 2. preparing microcapsules; and 3. adding the microcapsules into polyamic acid to obtain a mixed solution, carrying out spin coating on a glass sheet, transferring the coated glass sheet into a baking oven, keeping the temperature at 80 DEG C for 30 minutes, keeping the temperature at 120 DEG C for 2 hours, and keeping the temperature at 130 DEG C for 30 minutes, thereby obtaining the self-repairing POSS/microcapsule composite film. The self-repairing POSS/microcapsule composite film can endow the inorganic nano material POSS with high rigidity, and can be quickly decomposed into SiO2 under high-temperature conditions, thereby gluing the microcracks and enhancing the mechanical properties ...

Outer wall structure prefabricated block and outer wall structure prefabrication building method

The invention discloses an outer wall structure prefabrication block which comprises a prefabrication block body and a supportive frame. The prefabrication block body is of a continuous fabrication regular structure. A shape face for decorating an outer wall is arranged on a side face of the prefabrication block body. The supportive frame is fixedly installed on a back opposite to the shape face. The invention further discloses an outer wall structure prefabrication building method which includes the following steps. Firstly, a steel framework for installing the outer wall structure prefabrication block is manufactured on the outer wall. Secondly, according to a preset arrangement manner, the outer wall structure prefabrication block is hung on the steel framework in an arranged mode. After the outer wall structure prefabrication block is adjusted to be in place, the supportive frame is fixedly connected with the steel framework. By arranging the outer wall structure prefabrication block ...

Twig cutting method of Lycium Chinense Mill. of variety Mengqi No.1

The invention discloses a twig cutting method of Lycium Chinense Mill. of variety Mengqi No.1. The method comprises the steps of preparing branches Lycium Chinense Mill. of variety Mengqi No.1 into cutting woods; treating the cutting woods with a rooting composition to obtain treated cutting woods; and performing cuttage and seedling raising on the treated cutting woods. According to experiments provided by the invention, the twig cutting technology of Lycium Chinense Mill. of variety Mengqi No. 1 is systematically researched, and guidance for large-area popularized planting of Lycium Chinense Mill. of variety Mengqi No.1 is provided.

Graphene oxide-hydrogel composite drug carrier

The invention discloses a graphene oxide-hydrogel composite drug carrier. The graphene oxide-hydrogel composite drug carrier is prepared by polymerization of water-soluble graphene oxide, hydroxyethyl methylacrylate and N-vinyl pyrrolidone in water in the presence of a redox initiator, wherein the water-soluble graphene oxide is a graphene oxide-segmented polyether F-127 mixed aqueous solution. The graphene oxide-hydrogel composite drug carrier has good biocompatibility, good processability, good drug controlled-release capability, performances satisfying drug carrier basic-requirements, and large social and economic benefits, and can control drug release.

High-strength supermicroporous fiber-reinforced composite material and preparation method thereof

The invention discloses a high-strength supermicroporous fiber-reinforced composite material and a preparation method thereof. The preparation method comprises the following steps of carrying out irradiation crosslinking of ultrahigh molecular weight polyethylene fibers to obtain crosslinked fibers, preheating the crosslinked fibers, fully mixing a low-density polyethylene resin, a high-density polyethylene resin, a polypropylene resin, polyethylene wax, and an antioxidant 300# by a high-speed mixer, feeding the mixture into a parallel double screw extruder, extruding low density polyethylene-high density polyethylene-polypropylene blend melt into an impregnation machine head, feeding the crosslinked fibers subjected to preheating treatment into the impregnation machine head so that the crosslinked fibers are dipped in the low density polyethylene-high density polyethylene-polypropylene blend melt, cooling the dipped crosslinked fibers, carrying out grain-sized dicing by a granulator to ...

Special clamp for disassembling two-string head end ceramic bottle

A special clamp for disassembling a two-string head end ceramic bottle comprises a front clamp and two screws. A rocking handle is fixed in the middles of the screws, two ends of the rocking handle are connected with a connection sleeve respectively in spiral mode, and hinge through holes are arranged on the end portions of the connection sleeve. The special clamp is characterized by further comprising a riding plate clamp. Two ends of the riding plate clamp are respectively provided with a hinge hole corresponding to the hinge through holes of the connection sleeve. A groove extending from the end face to the middle is arranged at one end of the riding plate clamp, and the shape of the bottom wall of the groove is matched with the shape of the outer contour of an object to be adhered. The special clamp utilizes hinge of a hinge shaft of the riding plate clamp and a two-string plate and utilizes the identical shape of the bottom wall of the groove and the outer contour of the contact face ...

Solar energy collecting transmitter capable of automatically tracking sun

The invention discloses a solar energy collecting transmitter capable of automatically tracking the sun, namely a curved-surface heliostat. The solar energy collecting transmitter comprises a solar energy collecting device and a solar energy transmitting device, wherein the solar energy collecting device is provided with a first automatic tracking-correcting device for automatically tracking the sun direction; and the solar energy transmitting device is provided with a second automatic tracking-correcting device for adjusting the angle of a reflective mirror. According to the solar energy collecting transmitter, sunlight is collected through a big concave mirror and a small concave mirror and can be transmitted distantly through the reflective mirror and a transmitting cavity; the solar energy collecting device and the solar energy transmitting device are respectively provided with the tracking-correcting device, the rotation of a motor is controlled through a sensor, a processor or a photoresistor ...

Method for directly producing agarose from alga

The invention relates to a method for directly producing agarose from alga, comprising the following steps: using alga as an initial raw material, removing impurities, washing, conducting alkali treatment, degelatinizing, conducting DEAE adsorption, freezing and thawing, dehydrating and drying, etc. Compared with a preparation technology of agarose by using agar as the initial raw material, some unnecessary repetitive operations are reduced, the process is simplified, the energy consumption is reduced, and manpower and material resources are saved, thus the production cost is reduced.

Air conditioner as well as control method and control device thereof

The invention provides an air conditioner as well as a control method and a control device thereof, aiming at solving the problem that setting is inconveniently carried out by a user during control of an air supply angle of the air conditioner in the prior art. The air conditioner disclosed by the invention comprises multiple air swept blades and motors used for controlling multiple air swept blades to swing, wherein the air swept blades are divided into two or more than two groups, and two or more than two motors are adopted; and different motors are respectively used for controlling the air swept blades in each group to swing. By adopting the technical scheme in the invention, the user can conveniently carry out setting according to a mounting result, pertinence of an air supply region can be effectively improved, air supply efficiency is improved, and the aim of saving energy is achieved.

Composite hydrogel dressing and preparation method thereof

The invention provides composite hydrogel dressing. The composite hydrogel dressing comprises a base material layer and a gel layer which is covered on the base material layer, wherein the base material layer is a net-like high-density polyethylene layer; and the gel layer is a PEG (Polyethylene Glycol) based hydrogel layer. The invention further provides a method for preparing the composite hydrogel dressing. The method comprises the following steps of: (a), enabling the polyethylene glycol and acrylic acid to generate esterification reaction in an organic solvent, and carrying out water separating treatment to obtain polyethylene glycol diacrylate; (b), dissolving the polyethylene glycol diacrylate in water, and uniformly mixing the obtained aqueous solution with an initiator to obtain a mixed solution; and (c), coating the mixed solution on the net-like high-density polyethylene layer to obtain the composite hydrogel dressing through gelation. The composite hydrogel dressing can be used ...

Once signal to noise ratio measuring method and device based on chirp pulse feature

The invention provides a once signal to noise ratio measuring method and a device based on a chirp pulse feature. The once signal to noise ratio measuring method and the device based on the chirp pulse feature can measure a signal to noise ratio of a once pulse. The principles include that a pumping probe light path is built by optical Kerr effect. The measuring device broadens probe light as chirp laser pulse in time and space by a grating or a prism. The probe light transmits from an analyzer due to the optical Kerr effect, a transmitted signal is collected by a scientific-level charge-coupled device (CCD), and signal to noise ratio of the laser pulse to be detected is obtained. The method introduces large negative dispersion amount by the grating or the prism, broadens probe light pulse to hundreds of picoseconds or more, and enables time window to reach hundreds of picoseconds or more. Meanwhile, a spatial light modulator is inserted in the probe light path so as to finally increase ...

Top-bottom combined blowing converter steel-making method

The invention provides a top-bottom combined blowing converter steel-making method. The top-bottom combined blowing converter steel-making method comprises the following steps: performing converting operation according to a predetermined converting scheme; when the blowing operation is finished and carbon catching is performed, blowing gas by using a gas supply component at the bottom and stirring. According to the top-bottom combined blowing converter steel-making method, the gas is blown by the gas supply component at the bottom and stirring is performed when the blowing operation is finished and carbon catching is performed, so the bubbling degree of slag can be reduced, the interface reaction strength of steel slag is enhanced, and the dephosphorization and desulfurization effects of the slag are improved.

Hold hoop lamp base and lamp

The invention discloses a hold hoop base, the hold hoop base comprises a lamp base body, a fitting base used for installing a projection lamp is arranged on the lamp base body, a mounting hole matched with a column-shaped structure is formed inside the lamp base body, the lamp base body is evenly divided into sectioning lamp bases with at least two sections along the radial direction of the mounting hole, a connecting structure is arranged between every two adjacent sectioning lamp bases, and the connecting structure is used for holding tightly and fixing the lamp base body on the column-shaped structure. The invention further discloses a hold hoop lamp, the hold hoop lamp comprises the hold hoop lamp base and the projection lamp, the projection lamp is arranged on the fitting base of the hold hoop lamp base, and the light projection direction of the projection lamp is parallel to an axis of a dragline. The hold hoop lamp is capable of improving light projection effect, and free of affecting ...

Method, apparatus and system for controlling temperature and humidity

The invention discloses a method, an apparatus and a system for controlling temperature and humidity, wherein the method comprises the steps of: under a preset mode, simultaneously receiving a temperature signal and a humidity signal which are detected by a temperature sensor and a humidity sensor; reading the received temperature signal and reading the humidity signal depending on the temperature signal; and determining a dehumidifying mode of opening an air conditioner according to the indoor humidity corresponding to the humidity signal. According to the controlling method, the air conditioner can regulate the indoor humidity depending on the detected indoor temperature, thereby automatically improving the comfort degree of the user.

Chitosan derivative with cross-linking polymerization and containing drug ligand

The invention discloses a chitosan derivative with cross-linking polymerization and containing drug ligand. The chitosan derivative is a grafted substance formed by grafting a methacrylic acid substance and beta-cyclodextrin on a chitosan main chain, wherein the beta-cyclodextrin is grafted on the chitosan main chain through epoxy chloropropane; and the methacrylic acid substance is hydroxyethyl methylacrylate or methacrylic anhydride. The chitosan derivative provided by the invention has the beneficial effects that the processibility is good, and the controlled release of hydrophobic drugs can be realized; a hydrogel corneal contact lens prepared by the chitosan derivative has the advantages that the transparency is good, the water content, the water-retaining property and protein absorption capability are balanced, and the loading capability and the controlled release capability to the drugs are better than those of the existing material obviously. The chitosan derivative disclosed by ...

Internal heat reducing and inflammation diminishing chili sauce

The invention discloses internal heat reducing and inflammation diminishing chili sauce, which belongs to the technical field of food. The internal heat reducing and inflammation diminishing chili sauce is formed by the following components according to weight percent: 0.05%-1.5% of dendrobium polysaccharides and the balance of conventional chili sauce. According to the invention, the dendrobium polysaccharides are added to the conventional chili sauce, so that the defect that the conventional chili sauce causes internal heat increase and inflammation can be overcome, the chili sauce provided by the invention has the effects of reducing internal heat and diminishing inflammation, a broad market is provided for the chili industry and the traditional Chinese medicine industry, and the chili sauce has good application prospect.

Method for preparing environment-friendly water-soluble graphene

The invention discloses a method for preparing environment-friendly water-soluble graphene. The method comprises the following steps of adding block type polyether F-127 in graphite oxide water solution, uniformly dispersing the mixture to obtain the water-soluble graphite oxide solution; adding reducing agent in the solution and uniformly mixing the solution, diluting the mixed solution for 0-20 times with water, adjusting the pH(Potential of Hydrogen) value of the solution to be 10-13 with alkali, and finally reacting the solution at a temperature of 30-100 DEG C, to obtain the water-soluble grapheme, wherein the reducing agent is selected from vitamin C, galactose or bovine serum albumin. The environment-friendly graphene with good water solubility prepared by the method provided by the method has wide potential usage in biomedical field. The invention route is simple, the operability is strong, the output is large, the cost is low, and the method can be used for realizing large social ...

Special clamp for disassembling two-string tail end ceramic bottle

A special clamp for disassembling a two-string tail end ceramic bottle comprises a back clamp and two screws. A rocking handle is fixed in the middles of the screws, two ends of the rocking handle are connected with a connection sleeve respectively in spiral mode, and hinge through holes are arranged on the end portions of the connection sleeve. The special clamp is characterized by further comprising a riding plate clamp. Two ends of the riding plate clamp are respectively provided with a hinge hole corresponding to the hinge through holes of the connection sleeve. A groove extending from the end face to the middle is arranged at one end of the riding plate clamp, and the shape of the bottom wall of the groove is matched with the shape of the outer contour of an object to be adhered. The special clamp utilizes hinge of a hinge shaft of the riding plate clamp and a two-string plate and utilizes the identical shape of the bottom wall of the groove and the outer contour of the contacted face ...

Method for prolonging storage period of Hetao honeydew melons

The invention discloses a method for prolonging storage period of Hetao honeydew melons. The method disclosed by the invention comprises the following steps: spraying a 1wt% Ca(NO3) aqueous solution into melons before picking, and storing the melons at a low temperature after picking. The spray time is one week before melon picking. The spray mode is the two-time spray mode, and the spray time interval of each time is one day. Proven by experiments, according to the invention, different processing methods are adopted to process Wallace melons so as to research the influences on the physiological storage period and the quality, and finally a conclusion that the processing effect of the 1wt% Ca(NO3) aqueous solution is best can be drawn. Compared with other processing methods, the method has the advantages of best quality of the melons in the storage period and longest period, thereby providing a relative theoretical basis for the freshness preservation of the storage and the transportation ...

VIRULENT PSEUDOMONAS FLUORESCENS PHAGE Pf1901, AND PHAGE Pf1901 PREPARATION AND APPLICATION THEREOF

The present invention provides a virulent Pseudomonas fluorescens (P. fluorescens) phage ΦPf1901, and a phage ΦPf1901 preparation and an application thereof, and relates to the technical field of phage. The virulent P. fluorescens phage ΦPf1901 has an accession number of CCTCC M2019447. The virulent phage ΦPf1901 has a titer of (1.4−3)×1010 PFU/mL. The virulent phage ΦPf1901 has an optimal multiplicity of infection (MOI) value of 0.0001. The virulent P. fluorescens phage ΦPf1901 provided by the present invention exhibits very high specificity and lytic ability to P. fluorescens, which can be used to control P. fluorescens, with strong lytic and scavenging effects on a host.

ACTIVE EQUALIZATION CIRCUIT, BATTERY MANAGEMENT SYSTEM, POWER SOURCE SYSTEM, AND ELECTRONIC DEVICE

Embodiments of the present disclosure provide an active equalizer circuit, a battery management system, a power supply system and an electrical equipment. The active equalizer circuit comprises a plurality of switching transistors, a driving transformer, a multi-port converter, a buck converter, and a microcontroller. Each of the switching transistors is coupled to a battery cell in the series battery pack on a one-to-one basis. The multi-port converter comprises an equalizing transformer and a bridge converter, each secondary winding of the bridge converter is coupled to a corresponding plurality of battery cells. The buck converter has an input terminal coupled to an output terminal of the series battery pack and an output terminal coupled to an input terminal of the bridge converter. The microcontroller is configured to output a first control signal to the buck converter, to make the buck converter transform an output voltage of the series battery pack and output the transformed output voltage to the bridge converter, and output a second control signal to the bridge converter, to control an operation state of the bridge converter. According to the embodiments of the present disclosure, the cost and volume of the active equalizer circuit can be reduced. 1. An active equalizer circuit comprising:a plurality of switching transistors coupled respectively to battery cells in a series battery pack on a one-to-one basis, and configured to control on/off of a charging/discharging circuit for the respective battery cells;a driving transformer comprising a first primary winding and a plurality of first secondary windings, with each of the first secondary windings being coupled to a control terminal of a corresponding switching transistor on a one-to-one basis through a driving circuit;a multi-port converter comprising an equalizing transformer and a bridge converter, wherein the equalizing transformer comprises a second primary winding and a plurality of second secondary ...

Tape cartridge with increased storage capacity

A belt-driven tape cartridge (10) has a rectangular housing with a front wall (22) shorter than its side walls (20). The front wall (22) has an access opening (24) for a tape read/write head (25) and a drive opening (26). A pair of tape spools (34, 36) are rotatably mounted in the housing so as to lie on an axis oriented at an angle (44) to the front wall (22), and a plurality of tape guides (46, 48, 50) define a tape path between the spools (34, 36) and across the access opening (24). An endless drive belt (52) extends around a drive roller (54) at the drive opening (25) and at least three belt guide rollers (54, 56, 58) in a belt path arranged to contact tape (38) on each spool (34, 36). The tape path has extended portions extending between the tape contacting portions on each side of the spools (34, 36). At least one belt guide roller (58) is located in the same extended portion of the belt path as the drive roller (54) and at least two belt guide rollers (56, 57) are located in the other extended portion of the belt path.

Bio-organic compound fertilizer and method for preparing the same

The invention discloses a bio-organic compound fertilizer. The bio-organic compound fertilizer includes 5-10 parts of animal abdominal organs, 3-8 parts of agricultural 5 waste, 20-35 parts of livestock and poultry manure, 4-9 parts of industrial waste, 10-20 parts of urea, 4-7 parts of diammonium phosphate, 3-5 parts of potassium sulfate, 10-15 parts of auxiliary calcium materials, 2-4 parts of vitamins, and 3-5 parts of bacillus fungus. In the invention, by combining organic fertilizers with small amounts of inorganic waste and salts and excipients, the scope of application of this type of lO fertilizer can be achieved, and the standards for planting of various crops can be met, which can not only ensure requirements in nutrients for the normal growth of crops, but also ensure the resistance and survival rate of crops.

Active equalization circuit, battery management system, power source system, and electronic device

Active equalization circuit, battery management system, power source system, and electronic device

Circuito ecualizador activo, sistema de gestión de baterías, sistema de suministro de alimentación y equipo eléctrico

En realizaciones de la presente descripción se proporcionan un circuito de ecualización activa, un sistema de gestión de batería, un sistema de fuente de alimentación y un dispositivo electrónico; el circuito de ecualización activa comprende: una pluralidad de transistores de conmutación, un transformador de accionamiento, un convertidor multipuerto, un convertidor reductor y un microcontrolador. Cada transistor de conmutación está acoplado en correspondencia uno a uno a una celda de batería en un paquete de baterías en conexión en serie; el convertidor multipuerto comprende un transformador de ecualización y un convertidor puente, estando cada devanado secundario del convertidor puente acoplado a una pluralidad de celdas de batería correspondientes; un terminal de entrada del convertidor reductor está acoplado a un terminal de salida del paquete de baterías en conexión en serie, y un terminal de salida del convertidor reductor está acoplado a un terminal de entrada del convertidor puente; el microcontrolador se utiliza para enviar una primera señal de control al convertidor reductor de manera que el convertidor reductor realiza una transformación de voltaje en la salida del paquete de baterías en conexión en serie, luego la envía al convertidor puente; y el microcontrolador se utiliza para enviar una segunda señal de control al convertidor puente para controlar el estado operativo del convertidor puente. Las realizaciones de la presente descripción pueden reducir los costos y el volumen de un circuito de ecualización activo. (Traducción automática con Google Translate, sin valor legal)

Virulent Pseudomonas fluorescens phage ΦPf1901, and phage ΦPf901 preparation and application thereof

The present invention provides a virulent Pseudomonas fluorescens ( P. fluorescens ) phage ΦPf1901, and a phage ΦPf1901 preparation and an application thereof, and relates to the technical field of phage. The virulent P. fluorescens phage ΦPf1901 has an accession number of CCTCC M2019447. The virulent phage ΦPf1901 has a titer of (1.4-3)×10 10 PFU/mL. The virulent phage ΦPf1901 has an optimal multiplicity of infection (MOI) value of 0.0001. The virulent P. fluorescens phage ΦPf1901 provided by the present invention exhibits very high specificity and lytic ability to P. fluorescens , which can be used to control P. fluorescens , with strong lytic and scavenging effects on a host.