18results about How to "Reduce barrier effect" patented technology

The invention relates to the technical field of food packaging, in particular to an antibacterial fresh-keeping packaging film for food packaging and a preparation method of the antibacterial fresh-keeping packaging film, and aims at solving the problems that a traditional food packaging film is insufficient in antibacterial performance and not ideal in fresh-keeping effect. According to the preparation method, polyethylene resin and polylactic resin are taken as main raw materials, so that the packaging film is endowed with excellent mechanical property and barrier property, the oxidation process of food can be slowed down, the damage of oxygen to the food is reduced, the loss of nutritional ingredients in the food is prevented, and the freshness and nutritional ingredients of the food can be effectively kept; the modified nano-silver particles are added into the food, so that the growth and metabolic activities of microorganisms such as various bacteria and molds can be effectively inhibited, the risk that the food is polluted by the microorganisms is remarkably reduced, the deterioration of the food due to microbial decomposition is avoided, and the food quality is improved. Therefore, the quality and taste of the food are better maintained, and the shelf life of the food is prolonged.

The invention provides a manufacturing factory and a material distribution system. The manufacturing factory comprises a plurality of workshops and at least one central warehouse which are built. First distribution lines are arranged between each workshop and the central warehouse and among the plurality of workshops, so that the AVG dolly can move back and forth between each workshop and the central warehouse and among the plurality of workshops; each workshop comprises multiple layers of production units and is provided with an end warehouse elevator and a tail warehouse elevator which are connected with the multiple layers of production units; outside each workshop, a first-layer production unit is provided with an end library connection station and a tail library connection station; in each workshop, each layer of production unit is provided with an end warehouse connection table and a tail warehouse connection table; and in each workshop, each layer of production unit is provided with a second distribution line, and the second distribution line is used for the CTU to transfer, store and cache materials in each layer of production unit. According to the invention, automatic material distribution of each workshop, each production unit and each production line can be realized, and the requirement of large-scale material distribution is met.

The invention discloses a data transmission method, electronic equipment, a chip and a storage medium, the method is applied to first electronic equipment, and the method comprises the following steps: establishing human body communication connection with second electronic equipment through a user body; and sending a target data signal to the second electronic equipment through the human body communication connection in response to the fact that the signal quality of the human body communication connection is greater than a preset threshold value.

The invention provides a noise reduction power capacitor and a noise reduction core, and belongs to the technical field of mechanical manufacturing, the noise reduction power capacitor comprises a capacitor shell, the top and the bottom of the capacitor shell are respectively provided with a top sound-proof cover and a bottom sound-proof cover through sealing washers, and the top of the capacitor shell is provided with a wire outlet sleeve penetrating through the top sound-proof cover; a noise reduction core is installed in the capacitor shell, and a plurality of lifting pieces are installed on the two sides of the capacitor shell respectively. According to the invention, the noise problem caused by each harmonic current of the capacitor can be solved through a method of internal noise reduction, external noise reduction or combination of the internal noise reduction and the external noise reduction, and the internal noise reduction, the external noise reduction or the combination of the internal noise reduction and the external noise reduction and other methods can be independently used according to different frequencies and sizes of the harmonic current borne by the power capacitor so as to reduce the noise.

The utility model relates to medical supplies technical field discloses a big mesh hole hernia repair patch, including a plurality of medical textile monofilament, a plurality of antibacterial fiber and a plurality of flow fiber, a plurality of medical textile monofilament and a plurality of flow fiber are respectively perpendicular to each other interlaced weaving arrangement, a plurality of antibacterial fiber is respectively arranged in the clearance of a plurality of parallelly arranged flow fiber, the side wall of a plurality of flow fiber is respectively surrounded and is opened a plurality of drainage holes. The utility model provides a plurality of medical textile monofilament, a plurality of antibacterial fiber and a plurality of flow fiber are arranged mutually, and the interval is set to 3mm, can improve the mesh size of patch, does not influence the fibrous tissue production of affected part simultaneously can reduce the rejection phenomenon, and antibacterial fiber has excellent biocompatibility, can be absorbed and metabolized by human body part, contains amino in its molecular structure, makes it have antibacterial activity, can improve the antibacterial effect of patch, prevents the situation of infection.

The utility model provides a low-frequency resonance suppression front wall sound insulation pad, which relates to the technical field of sound insulation pads and comprises a sound insulation pad main body, and a base material framework layer is arranged in the sound insulation pad main body. According to the utility model, the low-frequency sound absorption layer is made of the open-cell polyurethane foam, and residual low-frequency noise penetrating through the dash panel is treated through friction loss of a porous material or sound energy absorption of the resonant cavity. The mass load layer is made of a high-density PVC plate, the overall mass of the sound insulation pad is increased, the blocking capacity to low-frequency sound waves is improved, the damping vibration attenuation layer is made of asphalt-based damping fins, when the sound insulation pad body is subjected to low-frequency vibration, the materials can convert vibration energy into heat energy and other forms of energy to be dissipated, and therefore the vibration amplitude is reduced, and the sound insulation pad has the good sound insulation effect. And low-frequency noise generated by vibration is reduced. And by arranging the low-frequency sound absorption layer, the mass load layer and the damping vibration attenuation layer, the low-frequency sound wave blocking capacity of the sound insulation pad body is effectively improved.

The invention aims to provide the zinc-containing coating film, the zinc content of the zinc-containing coating film is lower than that of the existing zinc-rich coating, and the corrosion resistance of the zinc-containing coating film can be comparable to that of the existing zinc-rich coating. The zinc-containing coating film contains a resin, zinc and graphene, the graphene content in the coating film is 0.01 wt% or more and 0.5 wt% or less, the zinc content is 30 wt% or more and 60 wt% or less, the corrosion potential of the coating film is-1.10 V or more and-0.70 V or less, and the conductivity is 0.00001 S / cm or more and 0.1 S / cm or less.

The utility model belongs to the field of sewage treatment, and particularly relates to a sewage reaction tank with a liquid level control function, which comprises a tank body, a sliding chute is arranged on the tank body, a water outlet pipe penetrates through the tank body and is fixedly connected with the tank body, a limiting device is arranged on the outer wall of the tank body, and a water inlet pipe penetrates through the tank body and is fixedly connected with the water inlet pipe. A liquid level control device is arranged in the box body and comprises a water stop pipe and a control rod, the water stop pipe penetrates through the water inlet pipe and is fixedly connected with the water inlet pipe, and the control rod is fixedly connected to the inner wall of the box body. According to the sewage reaction tank with the liquid level control function, when sewage in the tank body is injected to a certain height, the push rod is in contact with the water stop valve and pushes the water stop valve upwards under the buoyancy action of the floating block, and when the sewage is injected to a specified height, the push rod pushes the water stop valve into the water inlet pipe, so that the amount of the sewage injected into the tank body can be well controlled, and the operation is convenient. The sewage is prevented from overflowing out of the reaction tank.

The invention discloses a gas barrier nylon composite material, which comprises the following components by weight: 60 parts of PA6; 0-30 parts of impact modifier; 2.5-20 parts of polyhydroxy compound; 2.5-6 parts of cyclodextrin or its derivatives. The invention can improve the decrease of hydrogen barrier property caused by adding impact modifier by compounding polyhydroxy compound and cyclodextrin or its derivatives. Therefore, the gas barrier nylon composite material of the invention has the advantages of good hydrogen barrier property and good high temperature aging resistance, and can obtain a product with uniform wall thickness by blow molding process.

The application relates to the technical field of fire extinguishing balls, and discloses an inflation and spraying type fire extinguishing device with double-control explosion and throwing, which comprises an inner sphere and an outer sphere, a connecting pipe is fixedly connected between the inner sphere and the outer sphere, the inner parts of the inner sphere and the outer sphere are respectively filled with outer-ring fire extinguishing agent and inner-ring fire extinguishing agent, and the inner parts of the inner sphere and the outer sphere are respectively provided with an explosion mechanism and an inflation mechanism. Through double-control driving control, the outer-ring fire extinguishing agent of the fire extinguishing device can be effectively controlled to be sprayed in a larger range under the driving of the explosion mechanism with large explosion power, the spraying range of the fire extinguishing agent is effectively increased, the inner-ring fire extinguishing agent is driven by the inflation mechanism to extinguish fire in a small range around the fire extinguishing device, the small-range fire extinguishing effect can be ensured, the spraying coverage and spraying uniformity of the fire extinguishing agent in different ranges can be ensured, and the fire extinguishing range and fire extinguishing effect of the fire extinguishing device can be effectively ensured.

A valve device includes a valve seat assembly and a valve core. The valve seat assembly has a valve cavity, and the valve core is rotatable within the valve cavity. The valve seat assembly also has a first opening, a second opening, and a third opening, with the first and second openings spaced apart around the rotation direction of the valve core. The valve core has a valve core channel, and the third opening communicates with the valve core channel. The valve core channel includes a valve core opening, and both the first and second openings communicate with the same valve core opening. The valve device includes a flow-diverting state, in which the first and second openings communicate with the same valve core opening. This configuration helps to reduce flow resistance during the operation of the valve device.

The invention relates to the field of functional materials, and discloses a wear-resistant anti-corrosion material and a preparation method thereof, a wear-resistant anti-corrosion plunger rod and a preparation method and application of the wear-resistant anti-corrosion plunger rod. Wherein the wear-resistant anti-corrosion coating sequentially comprises a Si interface layer, a nano TiCN layer and a nano SiC layer from the inner interface of the coating to the outer surface of the coating. The wear-resistant and corrosion-resistant material and the wear-resistant and corrosion-resistant plunger rod provided by the invention have excellent wear resistance and corrosion resistance.

The present invention is applicable to the field of repeater technology, and provides a communication range extension method, device and terminal equipment, which are applied to the communication range extension system, and the communication range extension system includes an operation control device, a controlled device, a signal repeater, a buoyancy balloon and a height fixing line; the communication range extension method includes: the operation control device receives a range extension instruction, and the range extension instruction includes a preset height of the signal repeater; according to the range extension instruction, the length of the height fixing line and the traction buoyancy value that the buoyancy balloon needs to reach are calculated; safety gas is input into the buoyancy balloon until the buoyancy of the buoyancy balloon reaches the traction buoyancy value; the signal repeater is towed to a preset height and fixed by the buoyancy balloon. Through the present invention, the height of the signal repeater can be adjusted at any time to avoid the problem of obstacles caused by environmental changes and increase the communication distance.

The present invention relates to an optical filter and an imaging device. The present invention relates to an optical filter, the optical filter having an absorption layer and a reflection layer, the absorption layer containing a near-infrared absorption pigment and a transparent resin, wherein the near-infrared absorption pigment has a maximum absorption wavelength of 760nm to 900nm in the transparent resin, and an average transmittance T of 435nm to 480nm 435‑480平均TR , average transmittance T at 480nm to 590nm 480‑590平均TR The near infrared absorbing pigment has a maximum absorption wavelength of 760 nm to 900 nm in dichloromethane and an average transmittance T of 435 nm to 480 nm. 435‑480平均DCM The average transmittance T of 95% or more at 480nm to 590nm 480‑590平均DCM More than 97%, T 435‑480平均DCM With T 435‑480平均TR The difference between 480‑590平均DCM With T 480‑590平均TR The difference is 10.5% or less, and the incident angle of the filter is 60 degrees, and the average transmittance of 800nm ​​to 900nm is 5% or less.

The present invention discloses a BIPV lightweight component and a preparation method thereof, including S1: making a front plate; S2: making a back plate; S3: laying a back plate and a back encapsulation film in sequence from bottom to top on an operating table according to a stacked structure, and placing a battery layer on the laid back encapsulation film to complete the convergence connection, wherein the battery layer includes a plurality of solar cell strings; S4: laying a front encapsulation film and a front plate in sequence from bottom to top on the battery layer, laminating the back plate, the back encapsulation film, the battery layer, the front encapsulation film, and the front plate to form a BIPV photovoltaic lightweight component; S5: after laser cutting, installing a junction box, and testing the performance of the BIPV photovoltaic lightweight component, the BIPV photovoltaic lightweight component is laid flat on the roof. The present application can effectively prevent the problem of lightweight components failing due to power attenuation, can be applied to high humidity environments such as offshore photovoltaic power generation, and has good application prospects.

The invention discloses an electrolyte for inhibiting cyclic gas production of a sodium ion battery and a preparation method and application thereof, and the electrolyte is prepared from the following raw materials in parts by weight: 80-85 parts of a carbonic ester organic solvent, 0.5-5 parts of a negative electrode film-forming additive and 0.5-2.5 parts of a cyano siloxane multifunctional additive. According to the electrolyte disclosed by the invention, a functional additive containing cyano siloxane is used for generating a more stable interfacial film SEI layer on a negative electrode, so that a negative electrode material can be prevented from being stripped at a high temperature, the first coulombic efficiency of the negative electrode is improved, and the rate discharge cycle life of the battery is prolonged.

The invention belongs to the technical field of liquid hydrogen stations, and particularly relates to a spraying device for improving the precooling effect of a vehicle-mounted liquid hydrogen tank, the spraying device comprises a spraying inlet pipeline, a Laval nozzle, a spraying precooling pipeline and an atomizing nozzle, the inlet end of the spraying inlet pipeline is connected with the vehicle-mounted liquid hydrogen tank, the outlet end of the spraying inlet pipeline is connected with the inlet end of the Laval nozzle, and the spraying precooling pipeline is connected with the atomizing nozzle. The outlet end of the Laval spray pipe is connected with the inlet end of the spraying pre-cooling pipeline, and a plurality of atomizing nozzles are uniformly distributed on the spraying pre-cooling pipeline. The multi-channel structure and the atomizing nozzle are adopted for improving the flow channel and the atomizing effect of fluid, the use effect is excellent, the high use and popularization value is achieved, and the device is suitable for large-scale storage tanks including but not limited to a vehicle-mounted liquid hydrogen storage tank and a low-temperature liquid storage tank.