47results about How to "Expand the scope of application" patented technology

The invention relates to a multifunctional dust suppression vehicle and a control method. The multifunctional dust suppression vehicle comprises a vehicle chassis, an air-assisted fog gun, an air compressor, an inflation water tank, a spraying device and an electric cabinet. The control method of the multifunctional dust suppression vehicle is disclosed. The control method is realized through a blasting dust suppression operating system and an ore loading dust suppression operating system which are arranged in an electric control box, and comprises a spraying device setting control method, a blasting dust suppression operation control method and an ore loading operation dust suppression control method. The multifunctional dust suppression vehicle is applied to working conditions of blasting operation and ore loading operation of an open pit mine, generation and diffusion of raised dust can be inhibited, large-area water drops are generated in a short time through a spraying device during blasting operation to cover a blasting area, and a small amount of water mist is continuously sprayed for a long time through the air-assisted fog gun during ore loading operation to inhibit the raise dust in ore loading operation. The application range of the vehicle is expanded, the comprehensive performance and the cost performance of the vehicle are improved, and the vehicle belongs to environmental sanitation vehicles.

The invention relates to an electronic ink pen comprising a cylinder body (1), an ink refill (2), an electromagnetic wave generating device (3) and a switch (4). The ink refill (2) is installed in the cylinder body (1); the switch (4) is used for controlling the on/off state of the electromagnetic wave generating device (3) and can sense pressure; the switch (4) is turned on and triggers the electromagnetic wave generating device (3) to start operation when a pen point (20) of the ink refill (2) is pressed; the electromagnetic wave generating device (3) synchronously transmits an electromagnetic wave signal when the switch (4) is turned on and pressed; and the switch (4) is a silicone contact switch, a button switch, a toggle switch, a membrane switch or a micro switch, which is triggered by pressure. When the pen point of the electronic ink pen is pressed for writing, ink adheres to an interactive e-whiteboard, the electromagnetic wave generating device synchronously operates to transmit the electromagnetic wave signal, and requirements that ink is used to write on the surface of the interactive e-whiteboard and the interactive e-whiteboard can detect information of writing positions of the electronic ink pen can be simultaneously met; the flexibility of using the interactive e-whiteboard is improved; and the application scope of the interactive e-whiteboard is expanded.

The invention belongs to the technical field of precision optical detection, and in particular relates to a digital holographic flexible measurement device and method based on fiber bundles. A Twyman-Green interference optical path is used to design a small probe. A Galileo telescopic structure expands a beam at a sample to improve the lateral measurement resolution. A tunable laser is used as a light source to realize interference phase shift by wavelength scanning. An interference signal is transmitted by a fiber bundle, and an image is converted by a convex lens into a CCD camera. The inverse diffraction process of optical waves is simulated in a computer, and the three-dimensional image of an original object surface is reconstructed by digital holography. The device of the invention iscompact and flexible, can realize full-area scanning measurement for large-sized workpieces, and can measure the inner surfaces of complex structures such as holes, cavities and slots. The digital holographic reconstruction can overcome the influence of light field diffraction, improves measurement resolution, avoids the precise focusing process of microscopic imaging, and improves the flexibility of real-time measurements.

The invention discloses a plasma spray spectrometry ionization source. The plasma spray spectrometry ionization source comprises a low-temperature plasma jet device and a sample feeding device; the air exporting end of an insulating medium chamber of the low-temperature plasma jet device is close to a metal spray pipe of a three-way pipe of the sample feeding device and is vertical to the metal spray pipe; the insulating medium chamber is close to one side of an air sample feeding pipe; the sample sprayed out through a nozzle of the metal spray pipe of the three-way pipe can be molecularly ionized under the indirect effect of plasma jet. The plasma spray spectrometry ionization source is high in ionization efficiency, and can avoid the effect of a radio frequency electric field and reduce the energy consumption.

The invention discloses an electronic refrigeration atmosphere pre-concentrator. The electronic refrigeration atmosphere pre-concentrator comprises a 1-counter-8 eight-way valve, a six-way valve, two electromagnetic valves, a three-way electromagnetic valve, a needle-shaped regulating valve, a mass flow rate controller, a pressure sensor, a collector (1), a collector (2) and a cold focuser (3) which are sequentially connected, wherein a three-stage VOC refrigeration collection mode is adopted; the collector 1 is a stainless steel tube with the diameter of 1/8 inch, which is filled with glass beads; the collector (2) is a stainless steel tube with the diameter of 1/8 inch, which is filled with an adsorbent; the cold focuser (3) is a stainless steel tube with the diameter of 1/16 inch, which is filled with an adsorbent, and the cold focuser (3) is adsorbed by the adsorbent, and is heated up to 240 DEG C from -20 DEG C at the temperature rise velocity of 2250 DEG C/min above, so that VOC is rapidly injected into a GC (gas chromatograph) or a GC-MS (gas chromatography-mass spectrometry). The aim of concentrating VOC can be achieved without taking liquid nitrogen as a refrigerant.

The invention discloses a process for smelting stainless steel in a dephosphorization converter by using limestone and belongs to the technical field of stainless steel converter smelting. Limestone is mainly used to partially replace lime to smelt stainless steel in the dephosphorization converter, so that the application range of limestone which replaces lime in the technical field of iron and steel smelting in the prior art is expanded, and smelting of high-quality stainless steel types by using low-cost auxiliary materials is realized; by fully utilizing a good bottom-blowing stirring condition of the dephosphorization converter, limestone, lime and iron oxide scale balls are quickly melted, so that a purpose of quick dephosphorization is achieved.

The invention provides a double-helix boiler coal slime feeder, which is characterized by mainly comprising a coal slime feeding drum (3), a coal slime feeding helix and a feeding helix driving mechanism (4), wherein one end of the coal slime feeding drum (3) is connected with the feeding helix driving mechanism (4) and the other end of the coal slime feeding drum (3) is arranged on a boiler and is communicated with the interior of the boiler; a coal slime feeding hole (3) is formed on the coal slime feeding drum (3); the coal slime feeding helix comprises a first coal slime feeding helix (1) and a second coal slime feeding helix (2); and the feeding helix driving mechanism (4) comprises a power component and a transmission component. The double-helix boiler coal slime feeder has the advantages that: the feeder can be arranged at a plurality of positions of the boiler; the coal slime entering the boiler is fine granules so as to improve the combustion efficiency; and the problem that the coal slime is adhered to the feeding drum wall and the helixes is solved.

The invention is applicable to the technical field of robots and provides a crawling robot. The robot comprises a main body frame, a plurality of moving feet and a rotating mechanism, wherein the multiple moving feet are rotationally connected to the main body frame; and the rotating mechanism comprises a first telescopic component, a rack and a plurality of steering gears, wherein the first telescopic component is fixedly arranged on the main body frame, the rack is connected to the first telescopic component and is arranged on the main body frame in a sliding manner, the rack meshes with themultiple steering gears, the steering gears are pivoted to the main body frame, and the steering gears and the moving feet are fixedly connected in a one-to-one correspondence manner, and therefore,the rack can be driven to move through stretching and retracting of the first telescopic component, then the steering gears and the multiple moving feet can be driven to rotate, and the crawling direction can be changed without any rotation of the main body frame. The crawling robot is higher in steering freedom and more flexible in steering, and the application range of the crawling robot is greatly expanded.

The invention discloses a preparation method of a waterborne nanometer microcapsule emulsion. The waterborne nanometer microcapsule emulsion is prepared by dispersing a nanometer microcapsule into water; the nanometer microcapsule comprises a core material and a shell material wrapping the outer side of the core material, the core material is a far infrared nanometer ceramic powder, and the shellmaterial is polyurethane. The far infrared nanometer ceramic is wrapped by the polyurethane and is evenly dispersed in water to obtain the evenly dispersed waterborne nanometer microcapsule emulsion.The polyurethane effectively wraps the nanometer ceramic powder, the microcapsule is evenly dispersed in water, the adhesive force between the microcapsule and a substrate is strengthened, and the durability and the washing fastness of a functional textile material are improved substantially. The emulsion can be applied to the functional textile product and other thermal storage and insulation materials; after the functions of the textile material and other thermal storage and insulation materials are post-finished, the obtained textile product and other thermal storage and insulation materials not only have the excellent thermal storage and insulation functions, but also are excellent in adhesive force, washing fastness and durability, so that the scope of application of the functional textile material is improved.

The invention relates to a rotatable optical system. The system comprises a rotatable first lens mechanism, a plane mirror with two rotational degrees of freedom, a fixedly arranged second lens mechanism and an image sensor in sequence from the object side to the image side, a rotating shaft of the first rotational degree of freedom of the plane mirror intersects with the optical axis of the firstlens mechanism and is perpendicular to the plane formed by the optical axes of the first lens mechanism and the second lens mechanism, and a rotating shaft of the second rotational degree of freedomof the plane mirror is located in the plane where the plane mirror is located, passes through the center of the plane mirror and is perpendicular to the plane formed by the optical axes of the first lens mechanism and the second lens mechanism; therefore, a variable single lens path is achieved, and the range of a single lens capable of shooting is wider. Accordingly, by means of the rotation function of partial components in the single lens is utilized, a large-aperture and super-telephoto lens rotates, the application range is extended, and by means of the rotation property, shooting of panorama pictures can be achieved by using the single lens.

The invention provides a carbon dioxide-slickwater intermittent mixed-fracturing design method. The carbon dioxide-slickwater intermittent mixed-fracturing design method comprises the following stepsthat 1, at a first injection stage, a first slickwater fracturing fluid is injected into a target reservoir; 2, at a second injection stage, a liquid carbon dioxide fracturing fluid is injected into the target reservoir; 3, at a third stage, a second slickwater fracturing fluid is injected into the target reservoir; 4, at a fourth injection stage, the liquid carbon dioxide fracturing fluid is injected into the target reservoir; 5, after the fourth injection stage finishes, well soaking is performed; 6, at a fifth injection stage, the second slickwater fracturing fluid is injected into the target reservoir; 7, at a sixth injection stage, the first slickwater fracturing fluid is injected into the target reservoir, wherein the second slickwater fracturing fluid is prepared from the first slickwater fracturing fluid and a supporting agent. By adopting the method, fracturing fluids of different properties are injected at different stages, the chemical and physical properties of carbon dioxide are reasonably utilized, and the purposes of improving hydraulic fracturing complexity, the reverse discharging rate of the fracturing fluids and oil gas yield are achieved.

The invention relates to the technical field of phase change heat storage materials and preparation methods, and especially relates to an organic phase change heat storage material. The organic phase change heat storage material comprises, by weight, 80-97 parts of an organic phase change material, 1-15 parts of an oxidation inhibitor, 1-5 parts of a thickening agent, 1-5 parts of a nucleating agent and 0.1-5 parts of an enhanced heat conduction material. A preparation method of the organic phase change heat storage material comprises the following steps: heating, stirring and melting the organic phase change material, adding the oxidation inhibitor, the thickening agent, the nucleating agent and the enhanced heat-conducting material, and uniformly stirring and mixing to obtain the organic phase change heat storage material. The problems that in the prior art, the organic phase change material serves as an energy storage main body material, oxidation is prone to occurring, and the heat conductivity coefficient is relatively low are solved, the supercooling and phase separation phenomena of the organic material are effectively prevented by selecting proper materials and proportions, and good cycle stability is shown; and the organic phase change heat storage material also has the advantages of strong oxidation resistance and good thermal conductivity.

The invention provides a transfer case. The transfer case comprises an upper case body formed by welding and a lower case body formed by welding. The upper case body is in threaded connection with the lower case body, and at least two pairs of bearing holes are formed in the lower case body and used for an input shaft and an output shaft to penetrate in. By means of the transfer case, the problem of poor matching between a bearing and the bearing holes of an existing transfer case is solved, and therefore, the service life of the transfer case is prolonged.

The invention relates to a continuous wall forming machine of an underground cement soil impermeable wall. A machine chassis and a hydraulic support form a walking travel mechanism, a frame and an oblique adjusting rod are arranged on the machine chassis, the frame is adjusted to be in a perpendicular or oblique position through the oblique adjusting rod, and a vertical guide rod and a horizontal drive cylinder are arranged on the frame. A cutter drive mechanism and a cutter combination box are connected with a cutter combination chain and a cutter head, and move up and down along the vertical guide rod through a vertical drive cylinder. The cutter combination chain surrounding the two sides of the cutter combination box moves around a position between the cutter drive mechanism and the cutter head. Soil layers are cut and agitated by blades fixed on the cutter combination chain. A non-fence impermeable wall having excellent impermeable effect is really built through the machine, and the continuous impermeable wall has the advantages of uniform texture, accurate advance direction, better impermeable effect and simple technology. The continuous wall forming machine can be used for digging downwards, cutting soil layers and building the cement soil wall in one step.

The invention discloses an offshore platform pile foundation construction method. The offshore platform pile foundation construction method comprises the following steps that S1, a bearing platform steel truss is manufactured, and the bearing platform steel truss is provided with a plurality of pile holes distributed in rows and columns; S2, the length of a pile foundation is determined according to the drilling positions and the water depth of an offshore construction site; S3, the bearing platform steel truss is pulled to the offshore construction site, the pile holes correspond to the drilling positions one to one, the pile foundation is hoisted and inserted into the pile holes to be placed into the drilled holes, and a vibration hammer is adopted for piling to the preset depth; and S4, the bearing platform steel truss and the pile foundation are fixed and reach the designed height, and a panel is welded to the upper portion of the bearing platform steel truss to form an offshore platform. The offshore platform pile foundation construction method is simple in structure, high in construction adaptability and suitable for offshore drilling, engineering investigation and other engineering work, and transverse and longitudinal expansion can be conducted according to engineering needs so as to widen the application range of the offshore platform pile foundation construction method.

The invention discloses a power amplifier source for magnetic resonant coupling wireless power transmission. The power amplifier source comprises a power amplification module and a circuit feedback module; the power amplifier module adopts a planar circuit structure and an overall circuit with a power amplifier rear end to detect the energy feedback to perform the overvoltage protection, thereby realizing the radio frequency small signal input and large power signal output; the power amplifier source has excellent stability when the more than 70% of radio frequency power amplifier source efficiency is realized, the use field of the power amplifier source is broadened while the circuit module is simplified, and the stability of the wireless power transmission efficiency output is improved. The radio frequency power amplifier source of the invention is a planar structure, and can be processed through a printed circuit board so as to realize the power output. The power amplifier source is a small planar structure and suitable for various small power electric devices, and can provide the corresponding power input for the single-to-single and single-to-multiple wireless power transmission of the portable computers, tablet computers, LED lighting devices, loudspeaker boxes, mobile communication terminals and small consumer electronics.

Provided is a method for preparing an yttrium barium copper oxide (YBCO) superconductive composite film. Firstly, a precursor solution is prepared, namely yttrium acetate Y(CH3COO)3, barium acetate Ba(CH3COO)2 and cupric acetate Cu(CH3COO)2 are mixed and dissolved in a water solution containing 10-30 mol% of trifluoroacetic acid according to the molar ratio of Y to Ba to Cu being 1 to 2 to 3. The solvent is evaporated in a vacuum mode to obtain gel after even stirring. Carbinol is further added into the gel to be stirred evenly and then the solvent is dried to obtain gel. Afterwards, an appropriate amount of carbinol and terpineol are added into the solution to prepare a solution with 1.5-3.0 mol/L of total ion concentration of metal Y, metal Ba and metal Cu, after even stirring, zirconium acetylacetonate and titanium acetylacetonate which have 10%-15% of total ion molar concentration of metal Y, metal Ba and metal Cu are added into the solution to prepare the precursor solution. After that, the precursor solution is coated on a substrate. A coated film is first subjected to low temperature thermal decomposition at the temperature of 300-500 DEG C to decompose trifluoroacetic acid salt. Finally, the coated film is subjected to high temperature heat treatment at the temperature of 800-880 DEG C and annealing process at the temperature of 450-550 DEG C to form the YBCO superconductive composite film containing nanometer barium titanate and nanometer barium zirconate. The critical current density of the YBCO superconductive composite film reaches 7 MA/ cm<2> (77K, 0T).

The invention is suitable for the technical field of computers, and provides a keyboard locking and unlocking method, a system and a keyboard. The keyboard locking and unlocking method includes the steps: obtaining corresponding operation codes of a key pres-down operation and/or a key loosening operation on the keyboard, namely the operation codes are scanning codes or position codes; when the operation codes are a first preset operation codes, judging whether the keyboard is locked; when the keyboard is locked, permitting the keyboard and releasing the lock of the keyboard; and when the keyboard is unlocked, forbidding the keyboard and enabling the keyboard to be locked. The unlocking and locking are achieved through a keyboard controller of the keyboard and can only be achieved without the help of upper layer utility software, system resources are saved, the locking and the unlocking of the keyboard are irrelevant with an operating system, an applied ranged is raised, and therefore the problem that due to the fact that an effective computer keyboard locking and unlocking method cannot be provided in the prior art, conveniently locking/ closing the function of the keyboard is difficult is effectively resolved.

The invention discloses a single-stage energy storage converter with an isolation transformer, and the converter comprises three phases of branches, an AC end of each phase of branch is connected withan AC power grid, and a DC end of each phase of branch is connected with a storage battery; each phase branch structurally comprises an isolation transformer, an AC filter, an AC soft start loop, a filter circuit, a bridge inverter circuit, a DC bus capacitor, a DC filter and a DC soft start loop which are sequentially connected in series from an AC power grid end to a DC storage battery end; theanodes of the output ends of the three-phase branch direct-current bus capacitors are connected through a direct-current contactor; and the cathodes of the output ends of the three-phase branch direct-current bus capacitors are connected through a direct-current contactor. The method has the advantages that the power grid applicability of the energy storage converter can be improved, and the energy storage converter can stably and reliably work when the power grid is unbalanced.

The invention discloses a preparation method of a nano-dispersion system of curcumin loaded by chondroitin sulfate and zein. The method comprises the following steps: dissolving zein and curcumin in ethanol with a volume fraction of 75%, injecting the above obtained solution into a chondroitin sulfate solution, treating the chondroitin sulfate solution with an ultrasonic probe, evaporating the chondroitin sulfate solution with a vacuum rotary evaporator to remove ethanol, and adding deionized water to form a curcumin-loaded nano-dispersion system. According to the invention, an ultrasonic method and an anti-solvent method are adopted, in addition, the chondroitin sulfate component is added on the basis of taking zein as an embedding medium, and chondroitin sulfate can interact with zein byadjusting the adding sequence of chondroitin sulfate, so that the wettability of the surface of zein is improved, and the stability of a nano-dispersion system is improved.

The invention relates to oil-proof wrapping paper and a preparation method thereof and belongs to the technical field of food wrapping paper. According to the invention, a double oil-proof technologyis adopted, fluorobenzoyl chloride, dimethyl formamide and plant fiber microfilaments are mixed according to a certain proportion, oil-proof plant fiber microfilaments are prepared under certain reaction conditions, nanometer celluloses are subjected to fluorine-containing modification preparation by using the same method, and the double oil-proof wrapping paper is prepared by paper-making and surface application. The oil-proof wrapping paper and the preparation method thereof provided by the invention have the beneficial effects that the interior oil-proof performance and the surface oil-proof performance of the oil-proof wrapping paper are improved, and through double oil-proof treatment on the interior and the surface of pulp, the product achieves high oil-proof performance; in addition, the oil-proof wrapping paper is good in oil-proof performance, enhancement performance and barrier performance, so that the product grade and the value added are improved; moreover, the oil-proof wrapping paper prepared by the preparation method provided by the invention needs not be coated or waxed, so that the environmental protection performance, the safety, the oil-proof efficiency and the strength of the oil-proof wrapping paper are improved, and the application range is expanded.

The invention relates to a preparing method for metal rubber, and belongs to the field of composites for the metal rubber. The preparing method is characterized in that a metal rubber blank of a complex structure is manufactured through an extension spring with an outer sleeve, after the outer sleeve is removed through certain technology steps, only the metal rubber blank completely made of metal wires is left, and then the metal rubber blank is pressed into a pure-metal metal rubber block of a complex structure. The method solves the problems that the metal wires are manufactured into the spring for the metal rubber, in the process of metal rubber blank machining, stretched springs are extremely prone to being hooked and connected, consequently, the machining difficulty of the metal rubber block of the complex structure is large, and efficiency is low; and the metal rubber application range is expanded.

The invention belongs to the field of distillation and discloses a polyvinylidene fluoride film enhanced by nano microcrystalline cellulose as well as a preparation method and application of the polyvinylidene fluoride film enhanced by nano microcrystalline cellulose. The method comprises the following steps: adding needlebush dissolved pulp into sulfuric acid to obtain a reaction solution; pouring the reaction solution into de-ionized water; neutralizing, and standing for one night; dialyzing a lower-layer solution and centrifuging; freezing and drying liquid supernatant to obtain nano microcrystalline cellulose solids; preparing a DMF solution of the nano microcrystalline cellulose; preparing a DMF solution of polyvinylidene fluoride; mixing the DMF solution of the nano microcrystalline cellulose and the DMF solution of the polyvinylidene fluoride; carrying out electro-spinning by an electro-spinning machine to obtain a semi-transparent thin film; and putting the semi-transparent thin film into the de-ionized water to be immersed, and drying to obtain the polyvinylidene fluoride film enhanced by the nano microcrystalline cellulose. The polyvinylidene fluoride film takes the nano microcrystalline cellulose as an enhancing material, so that the tensile strength and the Young modulus of the polyvinylidene fluoride film are improved, and the biocompatibility and the degradability of the film are improved.

The invention discloses an adjustable and controllable optical flow control dye laser based on an electrorheological effect. A system in the prior art has the defects of complexity, incapability of adjusting and controlling and very high requirement on the preparation process. The electrorheological effect and an optical flow control technology are combined to form an adjustable and controllable optical resonant cavity, thereby constructing a tunable laser with an electric field adjusting and controlling laser output mode. Incident pump beams are form a converged pump light field after being subjected to beam shaping and spatial light modulation in sequence; the resonant cavity is a cylindrical cavity, two circular end faces are high-reflecting surfaces for forming optical feedback, the cavity is filled with a dye suspension, and the cavity is provided with an electrode for an external control electric field, thereby realizing an electric field adjusting and controlling optical resonance condition and a laser emitting mode. The adjustable and controllable optical flow control dye laser has the advantages of the conventional optical flow control laser as well as the characteristics of adjustable resonance cavity performance, controllable output beam mode, simplified system structure, simple preparation process, high miniaturization degree, good beam quality, axially symmetric optical pumping, high pumping optical energy utilization ratio and the like.

The invention provides a wall type embedded sound box system which comprises an audio signal device, an audio signal processing device and wall type sound box devices, the audio signal device is in data connection with the audio signal processing device and sends audio signals to the audio signal processing device, and the audio signal processing device processes the received audio signals and then sends the processed signals to the wall type sound box devices. The invention also provides a sound equipment play method and a receiver play method of the wall type embedded sound box system. According to the invention, the wall type embedded sound boxes of different frequencies are combined and arranged, so that different play effects are built in the indoor environment, different play experiences are provided, the using effect of the wall type embedded sound boxes is improved, the using scope of the wall type embedded sound boxes is broadened, the wall type embedded sound boxes can be detachably combined with an installation panel, the application range of the wall type embedded sound equipment itself is widened, and convenience is provided for dismounting and maintenance.

The invention relates to a preparation method of a polyester FDY mother filament and a monofilament thereof. The method consists of: adding an antibacterial polyester melt containing a cuprous material into a conventional polyester melt pipe by a melt direct-spinning pipe adding way, performing mixing by a static mixer in the melt pipe, then carrying out melt spinning, cooling, drafting, heat setting and winding to obtain a polyester FDY mother yarn. According to the process, specifically, the spinning temperature is 292DEG C, the wind temperature is 16-18DEG C, the wind speed is 0.7-0.85m/s, the drafting temperature is 95DEG C, the drafting ratio is 1.8-2.2 times, the heat setting temperature is 150DEG C, the winding tension is controlled at 2.2-2.5cN, and the winding speed is 3900-4500 meter/minute. While acquiring direct economic benefits, the method provided by the invention also achieves considerable indirect economic benefits, and seizes the DTY emerging market under the current situation of fierce market competition. According to the invention, the antibacterial material is added to enhance the antibacterial properties of the fiber and expand its application scope.

The invention discloses an interactive intelligent inputting method based on video images. The interactive intelligent method based on the video images is capable of enabling a user to achieve non-contact type operations. Through collecting information like motion paths, speed and acceleration of two hands of the user, the input function of an entity keyboard is achieved, and the collected information is outputted in the mode of characters for upper layer software to invoke and achieve customized application. The non-contact type intelligent inputting method based on the video images is capable of further achieving dynamic adjustment of the operation range of the virtualized keyboard according to the change of the motion range of the two hands of the user. When the two hands of the user are arranged in the working area of an image collection device, a displaying device displays the relative positions of the virtualized keyboard and virtualized fingers of the user, the user can achieve the corresponding operations of the buttons of the virtualized keyboard through the pressing actions of the fingers. In view of being compatible with habits of pressing the keyboard of all kinds of users, the device using the interactive intelligent method based on the video images provides a supervising function of the inputting of the virtualized keyboard, and corrects differences of accuracy brought by all kinds of actions which are not the keyboard inputting action. The non-contact type intelligent inputting method based on the video images is characterized in that a user does not need any auxiliary positioning areas and auxiliary positioning objects for inputting, and the inputting action can be achieved at any position inside the working area of the image collection device. The interactive intelligent method based on the video images is low in cost, wide in applicability, and intelligently interactive. The invention further provides the realizing device based on the interactive intelligent method based on the video images.

The invention discloses a method for preparing a liquid crystal elastomer intelligent material with three-dimensional reversible drive. A dynamic covalent bond is introduced into a liquid crystal elastomer, the liquid crystal elastomer is converted into a three-dimensional structure by using an external force, and an exchange reaction in a system is activated under external stimulation (such as light and heat), so that liquid crystal element orientation caused by external force deformation is fixed, and the liquid crystal elastomer reversibly changes between a three-dimensional shape and a film. According to the method, the liquid crystal elastomer can have three-dimensional reversible drive without a catalyst, liquid crystal element orientation through stretching or overall orientation ofthe liquid crystal element.

The invention discloses a tensile and anti-interference type crosslinked polyethylene insulated medium-voltage power cable. The cable is formed by an anti-interference threading pipe and a tensile cable in a combined manner; and the tensile cable is set in the anti-interference threading pipe. According to the tensile and anti-interference type crosslinked polyethylene insulated medium-voltage power cable disclosed by the invention, multiple power cables are set in the threading pipe; therefore, the multiple power cables can be inserted at the same time; the cost is reduced; resources are saved; a support core is arranged in the threading pipe body; the external stress resistance capability of the threading pipe is improved; double metal layers are set at the same time; therefore, when a power cable passes through the threading pipe body, the threading pipe has a function of shielding electromagnetic wave interference; electromagnetic wave interference among various electrical lines isavoided; convenience is provided for lives of people; the application range of the threading pipe is expanded; and, because double plastic layers are set, the threading pipe has the characteristics of being flame-retardant, corrosion-resistant and good in insulativity.

The invention belongs to the field of steel and iron smelting, and in particular relates to a titanium-rich pellet and a production method thereof. The titanium-rich pellet contains 10-15% of TiO2 and 40-55% of TFe. Furthermore, the invention provides a production method of the titanium-rich pellet, and the production method comprises the steps of preparing materials, pelletizing, drying, pre-heating, baking and cooling to obtain a finished product. The titanium-rich pellet prepared by the method disclosed by the invention not only can serve as a raw material when making steel in a blast furnace, but also can protect furnace bottom of the blast furnace used for making steel, and the titanium-rich pellet is good in effect.