135results about How to "No input required" patented technology

The invention relates to the technical field of electrocatalysts. The invention discloses a monatomic iron-nitrogen co-doped carbon electrocatalyst as well as a preparation method and application thereof. Iron in the catalyst is wrapped in pores of a metal organic framework ZIF-8 containing a micropore and/or mesoporous structure in a monatomic iron-nitrogen coordination form, and the catalyst comprises micropores with pore diameters lower than 3nm, mesopores with pore diameters of 3-5nm and mesopores with pore diameters of 29-32nm. The preparation method of the vcomprises: (1) adding iron phthalocyanine into a 2-methylimidazole solution; (2) adding a zinc nitrate solution, and mixing to obtain a ZIF-8 packaged iron phthalocyanine composite material; and (3) calcining and pickling the composite material to obtain the electrocatalyst. The macroscopic morphology of the catalyst is a regular dodecahedron, the catalyst is regular and good in repeatability, and when the catalyst is applied,an electrolyte can achieve mass transfer through rich mesoporous structures in the catalyst, and high selectivity, high activity and low overpotential of CO preparation through electro-catalysis of CO<2> are achieved.

The invention relates to a plate shape control method of hot rolling thin checkered plates. Process characteristics and a thermal crown value are established according to the working thermal crown of a tail frame of a finishing mill group, a checkered roller is used as an upper working roller, and a negative convexity roller form within the range of 0.05-0.15mm is used as a lower working roller and paired with the checkered roller for use, wherein the checkered roller is of a plain roller form, and a 6-power multinomial roller form is used as a supporting roller. The method solves the problems of severe middle wavy defects caused by large roller convexity of a rolled thin checkered plate when the working roller with a plain roller form is paired with the checkered roller, scratches of the edge of the checkered roller and local slow peeling because of non-uniform chamfer transition of the edge of a CVC supporting roller form, inability of rolling wide checkered plates and insufficient height of the edge of the rolled checkered plate.

The invention discloses a water-based paint remover applied to zipper production and a preparation method thereof, and belongs to the technical field of paint cleaning. The water-based paint remover is characterized by consisting of the following components in parts by mass: 20-30 parts of a main solvent, 25-35 parts of a cosolvent, 10-20 parts of an activating agent, 3-5 parts of an emulsifying agent, 8-10 parts of a penetrating agent, and 20-25 parts of deionized water, wherein the main solvent is one of or a combination of two or more of the solvents including N-methyl-2-pyrrolidone, butylcellosolve, propylene carbonate, dimethyl sulfoxide, benzaldehyde, and methyl methacrylate; the cosolvent is one of or a combination of two or more of the solvents including Y-butyrrolactone, benzyl alcohol, ethanol, and propanetriol; and the activating agent is one of formic acid, acetic acid, oxalic acid and salicylic acid. The water-based paint remover disclosed by the invention can remove paint on a zipper paint spraying pot and a zipper head at a normal temperature, is noncorrosive to equipment, does not pollute the environment and generate wastewater, and can be used repeatedly.

A system and method that, upon connection of a trailer to a tow vehicle, recognizes the trailer and applies a stored trailer configuration in a controller. In one embodiment, tire pressure sensors transmit RF signals that are received by the tire pressure monitoring system. Transmissions from the sensors are decoded in a controller and processed to identify, or create a particular trailer configuration as well as implement tire pressure monitoring automatically calibrated to the particular trailer configuration based on the sensor identifications for the tire pressure sensors. In another embodiment, the trailer configuration includes a pulse width modulated gain control for the trailer brakes.

The present invention discloses an aluminum alloy diesel engine cylinder cover casting method, which comprises: processing metal type modules, wherein the metal type modules comprise a plate-shaped metal module and a square metal module, the plate-shaped metal module is used for forming the combustion chamber part of the aluminum alloy diesel engine cylinder cover, and the square metal module is used for forming both end parts of the aluminum alloy diesel engine cylinder cover; processing chassis sand core, wherein the chassis sand core is processed and formed by adopting a digitalized mold-free forming machine, and installation positions for inlaying the plate-shaped metal module and the square metal module are respectively processed on the inner bottom surface and the inner surfaces on both ends of the chassis sand core; assembling the sand core, wherein the metal type modules are inlayed on the corresponding installation positions of the chassis sand core, and then the upper water jacket sand core, the lower water jacket sand core, the gas inlet channel sand core, the gas outlet channel sand core, the runner sand core, the tappet hole sand core, the cover disk sand core and the pouring cup sand core are assembled; and adopting a side-pouring bottom-pouring way to cast the aluminum alloy liquid. With the method, the good quality microstructure of the key part of the cast can be obtained.

The invention relates to an optical driving flexible adjustable grating and a preparation method thereof. The optical driving flexible adjustable grating is characterized in that the middle part is a polydimethylsiloxane film; two ends are graphene/polydimethylsiloxane films; two sides are fixed on a clamp; and the distance between grids can change following changes of light intensity and irradiation time of irradiation of a first 808nm near-infrared laser and a second 808nm near-infrared laser on the graphene/polydimethylsiloxane films. The flexible adjustable grating can continuously adjust expansion and transformation of the graphene/polydimethylsiloxane films under the irradiation of the near-infrared lasers, so that the distance between the grids can be changed; the operating wavelength of the flexible adjustable grating can be changed; and real-time and all-optical type drive tuning can be realized.

The invention discloses a textile machine yarn guide device. The device comprises a box body, wherein a yarn inlet and a yarn outlet are symmetrically formed in the box body, an adjusting roller and ayarn guide roller are symmetrically and rotationally installed in the box body, the adjusting roller is fixedly sleeved with a ferromagnetic ring, a limiting barrel is installed on the inner top wallof the box body, a sliding block is slidably connected into the limiting barrel, a first permanent magnet cylinder is installed at the lower end of the sliding block through a plurality of connectingrods and located below the limiting barrel, a drying mechanism is arranged on the first permanent magnet cylinder, an electromagnet is further elastically connected to the inner top wall of the box body through a first spring, and the electromagnet is located over the adjusting roller. According to the device, when yarn loosens, adjustment can be made in time so as to tension the yarn, so that the yarn is prevented from loosening, the loss of the yarn is reduced, meanwhile, the working efficiency of the yarn guide device is improved, and under the effect that dust on the yarn is alternately sucked into a dust collecting box through two driving areas, the dust removing efficiency of the device is higher.

The invention discloses a self-cleaning photovoltaic panel based on wind power. The photovoltaic panel comprises a photovoltaic panel body, mounting grooves are symmetrically formed in the photovoltaic panel body. A rotating rod is horizontally and rotatably mounted in the plurality of mounting grooves; winding rollers are symmetrically arranged on the rotating rod in a sleeving manner; each winding roller is positioned in the corresponding mounting groove; the two ends of the rotating rod penetrate through the side wall of the photovoltaic panel body, extend out of the photovoltaic panel bodyand are connected with fan blades; sliding grooves are symmetrically formed in the photovoltaic panel body, a sliding block is connected into each sliding groove in a sliding mode, a scraper blade isarranged between the multiple sliding blocks, and a pull wire is connected between the upper end of each sliding block and the corresponding winding roller. The fan blades are driven by wind power torotate, the fan blades drive the rotating rod to rotate, so that the scraper blade is driven to clean the surface of the photovoltaic power generation panel, meanwhile, cleaning water can be intermittently squeezed out of the liquid storage tank to be used in cooperation with the scraper blade, the cleaning effect is good, manpower is not needed, external energy input is not needed, and energy conservation and environmental protection are achieved.

The invention discloses a Wi-Fi (Wireless Fidelity) based on commercial use. According to the gait recognition method with the independent direction of the Wi-Fi, a subject repeatedly walks for a specified distance in a preset area and passes through commercial Wi-Fi; the Wi-Fi device collects a CSI signal of the subject; motion detection is carried out according to different states of CSI signalPSD distribution in walking and static states by using PCA dimension-reduced data, and the walking direction of the subject is derived; STFT is carried out on the first ten principal component data after dimension reduction, a time domain signal is converted to a time-frequency domain, 10 spectrograms with the horizontal axis as time and the longitudinal axis as frequency are obtained, and the spectrograms are denoised through a two-dimensional Gaussian low-pass filter; according to the derived direction, mapping the spectrogram to the direction reflecting the real movement of the human body,and carrying out error correction and fusion to obtain a spectrogram; extracting manual features from the spectrogram, and obtaining automatic features from a Gabor filter; and inputting the two features into a support vector machine with a radial basis function to realize gait recognition.

The invention relates to the technical field of information processing, in particular to a method and device for user password management. The method for user password management comprises the steps that registration information of a user is collected, and one or more third-party platforms to be registered are prompted to be selected by the user; registration requests are sent to the third-party platforms selected by the user, different second user names and second passwords are generated for the different third-party platforms according to the registration information filled in by the user, and then the second user names, the second passwords and the registration information of the user are submitted at the same time; after registration succeeds, the second user names and the second passwords of the third-party platforms are stored; when a third-party platform logging request initiated by the user is received, the second user name and the second password which correspond to the third-party platform of the user are read and are submitted to the third-party platform. According to the method and device for user password management, multiple passwords are not needed to be recorded at the same time, and one password can solve the problem.

The invention discloses an energy recovery method and an energy recovery device used for a drying system. The energy recovery method used for the drying system includes the following steps: after exhaust gas which needs drying is dehumidified by liquid moisture absorbent, the separated dried exhaust gas which needs drying is heated by the liquid moisture absorbent which absorbs the moistures and returns to the drying system; and the liquid moisture absorbent which absorbs the moistures and releases heat is regenerated through fresh air to be reused for dehumidification. In such a way, the liquid moisture absorbent is recycled. The invention further provides the energy recovery device used for the drying system. The energy recovery method disclosed by the invention can simultaneously recover the latent heat and the sensible heat in the exhaust gas which needs drying, and has a remarkable energy-saving effect, the utilization efficiency of the drying heat is improved. The energy recovery device is simple in structure and convenient to operate.

The invention provides a method and a terminal for implementing services through a mobile communication terminal. The method comprises receiving an access request of the mobile communication terminal accessing to a vehicle-mounted service terminal through the vehicle-mounted service terminal and interacting with the mobile communication terminal to obtain the identity information of a user from the mobile communication terminal; interacting with a network side and transmitting the identity information of the user to the network side to enable the network side to configure a preset random number and obtain a first testing information obtained according to the preset random number, and then receiving the preset random number; sending the preset random number to the mobile communication terminal to enable the mobile communication terminal to obtain a second testing information according to the preset random number, and then receiving the second testing information; sending the second testing information to the network side to enable the network side to test the mobile communication terminal according to the first testing information and the second testing information, and then receiving a test result; according to the test result, processing the services between the vehicle-mounted service terminal and the mobile communication terminal. The method and the terminal for implementing services through the mobile communication terminal can rapidly and conveniently indentify the identities of users and achieve high security.

The invention provides a preparation method of a loofah vine juice and pawpaw composite skin moisturizer. The preparation method comprises the following steps of: grinding pawpaws into thick liquid, filtering, collecting a pawpaw filtrate and mixing the pawpaw filtrate with loofah water extracted from loofah vines and gingkolic acid; filtering the mixed liquid; and sterilizing the filtered mixed filtrate. The loofah vine juice and pawpaw composite skin moisturizer which is prepared by using the method is pure natural plant extracts, and the gingkolic acid extracted from gingkolic is adopted as a preservative and synthetic preservatives and heavy metal contents are not used so that the environment-friendly production is realized, and the composite skin moisturizer has good beauty care effect without causing any toxic or side effect on the user skin. In addition, the composite skin moisturizer produced by using the method simultaneously realizes the skin care efficacy of loofah and pawpaw in the use process.

The invention discloses a double chimney tracking solar energy sea water desaltation system and a desaltation method thereof. A heat collection shed arranged horizontally is connected with an inner chimney; a trough-type light-focusing module arranged aslant is connected with an outer chimney; the height of the outer chimney is higher than that of the inner chimney; a wind turbine is arranged at the bottom of the inner chimney; a liquid separating device is arranged in the dividing wall between the inner chimney and the outer chimney; a condenser is arranged in the inner chamber channel and on the outer surface of the outer chimney; the solar energy heating horizontal heat collection shed generates air flow; the air flow pushes the wind turbine at the bottom of the inner chimney to provide part electrical energy needed by the system; the trough-type light-focusing module heats the seawater to generate water vapor; the air flow in the inner chimney injected water vapor flows to the condenser, and is condensed to fresh water; the fresh water flows in a fresh water tank along the outer chimney wall; strong brine with a relatively high temperature flows in a horizontal heat collection shed bottom heat storage layer to store energy. The solar energy sea water desaltation system and the desaltation method have the advantages that light-focusing solar energy is utilized to heat the seawater; the structure is compact; power source and capacity source are separated from each other reasonably; solar energy can be utilized and managed better, and the fresh water productivity can be improved.

The invention discloses a method for preparing sulfide semiconductors/metal nanoparticles based on sulfur vacancy defects. The method comprises the following steps: (1) preparing turbid liquid of sulfide semiconductors with sulfur vacancies; (2) preparing a metal ion precursor solution; and (3) mixing the turbid liquid of the sulfide semiconductor with the sulfur vacancy defect with the metal ion precursor solution; wherein the sulfide semiconductor/metal nanoparticles prepared by the method are applied to the fields of photodegradation, water photolysis and photocatalytic reduction of carbon dioxide, and water photolysis is preferentially selected; according to the method, the metal ion precursor solution can be directly reduced by utilizing the defect reduction characteristic of sulfide, and the metal nanoparticles directly grow on the defect surface of the semiconductor, so that the effect of passivating the defect on the surface of the semiconductor is achieved; the metal nanoparticles deposited on the surface of the semiconductor can be in close interface contact with the semiconductor, the method is simple to operate, external energy is not required to be input, and the composite catalyst can be prepared only by stirring.

The invention discloses a park floor lamp capable of automatically dissipating heat and expelling insects. The lamp comprises a lamp shell and a lamp tube installed in the lamp shell, an installationgroove is formed in the lamp shell, the installation groove is located above the lamp tube, a light-transmitting plate is connected to the groove opening of the installation groove in a sealed mode, an equipment groove is formed in the light-transmitting plate, and a plurality of shading plates are symmetrically and rotationally installed in the equipment groove through a rotating shaft. The decomposition characteristic of the driving agent is utilized, when the lamp tube works, the heat dissipation fan can be autonomously driven to periodically rotate forwards and backwards, so that hot air in the shell is intermittently exhausted, and external cold air is sucked in, the flowing speed of gas in the shell and outside gas is increased, the heat dissipation effect is good, energy conservation and environmental protection are achieved, meanwhile, with forward rotation of the heat dissipation fan, the atomization spray head can spray stored insect expelling liquid to the ventilation groove, insects can be prevented from being gathered in the ventilation groove, and normal use of the heat dissipation opening is guaranteed.

The invention discloses a self-heat-dissipation and dust-removal pavement lamp for park greening. The lamp comprises a shell and a lamp tube installed in the shell. A containing groove is formed in the shell, a light-transmitting plate is connected to a groove opening of the containing groove in a sealed mode, a sealed space formed by the containing groove and the light-transmitting plate is filled with a reactant, a channel is formed in the light-transmitting plate, a plurality of mounting grooves matched with the channel are symmetrically formed in the shell, and a movable plate is connectedinto each mounting groove in a sealed and sliding mode. The decomposition characteristic of the reactant is utilized, a fan can be driven to periodically rotate forwards and backwards, and therefore,hot air in the shell is intermittently exhausted, external cold air is intermittently sucked, the flowing speed of the air in the shell and the external air is increased, the heat dissipation effectis good, energy conservation and environmental protection are achieved, meanwhile, a pull wire drives a scraping ring to move along with rotation of a rotating shaft so that dust adhering to the surface of the shell can be scraped, and normal use of the shell is guaranteed.

The invention belongs to the technical field of optical resins, and particularly relates to a method for producing a low chroma polythiol compound. The specific preparation steps are as follows: a surfactant is added to an isothiourea salt in an alkaline solution to carry out a hydrolysis reaction to obtain a polythiol crude product mixture, and separating, washing with water, and drying are performed to obtain the low chroma polythiol compound. The production method has the advantages of simple operation, easy availability of raw materials, small use amount, low energy consumption, and no equipment investment, the obtained product can meet needs of industries such as fine chemical industry, the quality of downstream products is improved, and the product can be easily used to prepare optical resin lenses with excellent performance.

The invention belongs to the technical field of solar energy utilization, and particularly relates to a solar energy desalting kit. The sea-level floating type solar energy desalting kit is arranged on a sea level, and adopts the technical scheme that reflecting condensing surfaces (4) adopt a non-planar structure, and are mounted on a baseplate (8); high-reflectivity coatings are plated on the surfaces of the reflecting condensing surfaces (4); fresh water outlet pipes (6) are arranged at the bottoms of the reflecting condensing surfaces (4); a supporting rack (2) is mounted on the baseplate (8) on the periphery of the reflecting condensing surfaces (4); a hydrophilic cellular material is adhered to the outer side of the supporting rack (2); a transparent film (1) is arranged at the top of the supporting rack (2); orthographic projection of the transparent film (1) covers the reflecting condensing surfaces (4) and the baseplate (8); seawater inlets (7) are further formed in the baseplate (8), formed in the outer side of the fresh water outlet pipes (6), and separated from the fresh water outlet pipes (6) through a water baffle (5). According to the invention, sunlight can be directly utilized to generate fresh water.

The invention aims at providing a vertical laminated busbar-based converter module which is compact in structure, reasonable in arrangement, high in safety and reliability, convenient to maintain and good in electrical property. According to the vertical laminated busbar-based converter module, a three-phase half-bridge DC busbar comprises symmetrically superimposed positive busbar and negative busbar; an insulating layer is arranged between the positive busbar and the negative busbar; an input positive electrode of the positive busbar and an input negative electrode of the negative busbar are correspondingly connected with a positive electrode and a negative electrode of an IGBT power device; the positive electrode and the negative electrode of the IGBT power device are symmetrically arranged at two sides of the three-phase half-bridge DC busbar; capacitance windows which are equal to peak absorption capacitors in number are arranged in the lower side edge of the three-phase half-bridge DC busbar; the peak absorption capacitors are located at the capacitance windows and the positive electrodes and the negative electrodes of the peak absorption capacitors are correspondingly connected with the positive electrode and the negative electrode of the IGBT power device respectively; and a DC support capacitor is connected to the three-phase half-bridge DC busbar. The vertical laminated busbar-based converter module can be applied to the field of power equipment.