299results about How to "Ensure physical and mental health" patented technology

The invention discloses special structural explosive for explosive cladding, an explosive cladding method and an explosive cladding device. The structural explosive comprises a filling plate, a plurality of cavities filled with the explosive are formed in the filling plate and distributed in a matrix. The special structural explosive for explosive cladding is formed by filling or injecting the explosive in the cavities of the filling plate. A layer of composite plate is mounted on each of two sides of the structural explosive, and the two composite plates are driven to move reversely after explosion to composite with two base plates in reserve directions. By the aid of an explosive filling method, explosive filling quality is guaranteed, critical thickness of stable explosive detonation is reduced, and energy utilization rate of explosive explosion is improved. The special structural explosive is convenient to use, and mechanized batch production can be realized. By the aid of the explosive cladding device, usage amount of the explosive is lowered, production cost is reduced, shock wave and noise pollution are reduced, and working environment of workers is improved.

The invention discloses an ultrafine pulverizer. A gear ring of a pulverizing mechanism of the ultrafine pulverizer is formed by connecting and splicing a plurality of identical gear ring arc sections end to end; inclined teeth inclining towards the axial direction of the gear ring are arranged in the arc sections of the gear ring; alloy strips are arranged on the inclined teeth by oxygen welding; a plurality of grooves are formed in the alloy strips; a dentoid structure is arranged on one side, facing to the gear ring, of each hammerhead; the dentoid structures are inclined teeth inclining towards the normal direction of a wearproof tray; and the inclination directions of the inclined teeth on the hammerheads are opposite to those of the inclined teeth on the gear ring. According to the ultrafine pulverizer, with the adoption of the inclined tooth structures of the gear ring and the hammerheads, the impact of a high-speed air flow on materials in the pulverizer is improved, and the collision and the friction among materials are increased, so that the pulverizing efficiency and effect are improved effectively; the yield by the pulverizer is increased; the abrasion performances of the hammerheads and the gear ring are improved with the adoption of the alloy materials; the service life of the hammerheads and the gear ring is further prolonged; and the maintenance cost is reduced.

The invention discloses an intelligent student work and rest time control robot based on machine vision and voice interaction, and belongs to the technical field of artificial intelligence. The robotcomprises a robot body and a mobile phone APP (application) matched with the robot body, and the robot body mainly comprises a hardware portion which comprises a main controller, a data storage, a video processor, a binocular camera component, a human body infrared sensor, a voice recognition module, a microphone, a WIFI (wireless fidelity) data interface, a Bluetooth wireless data interface, a USB (universal serial bus) wired data interface, a loudspeaker, base cloud deck and the like. The robot automatically supervises and urges students to learn and rest according to plans by the aid of a microprocessor and voice interaction, sitting postures of the students in learning are monitored by the aid of binocular vision identification and are corrected in a reminding manner through voice broadcast, vision and infrared are combined to detect get up states of the students, the robot urges the students to get up by the aid of personalized wake-up modes, and the work and rest plans are conveniently written, generated, downloaded and monitored by the aid of the matched intelligent mobile phone APP.

The invention provides a fetal heart monitoring device which comprises an ultrasonic probe, an information input module, an information processing module and an information display module, wherein the ultrasonic probe is used for probing fetal heart signals and enabling ultrasonic Doppler signals of fetal heart movement to be converted to audio frequency information to be outputted, the information processing module is used for calculating and processing user body information inputted through the information input module and fetal heart audio frequency information of a fetus-voice meter main body inputted through a communication unit to generate display information data, and the information display module is used for displaying display information generated by the information processing module. The display information comprises fetal heart position information obtained through calculation and processing of the information processing module according to a pregnancy cycle of a user. The fetal heart monitoring device can monitor the fetal hear rate of a fetus, can help a pregnant woman quickly and precisely find a fetal heart position in use, smoothly carries out fetal heart monitoring, and eliminates anxious and nervous moods of the pregnant woman.

The invention discloses a chip removal device for a carving machine. The chip removal device comprises a bed body and a chip cleaner. A portal frame crossing the two edges of the bed body is arranged on the bed body, the chip cleaner comprises a sloping baffle, the sloping baffle is located below the working surface of the bed body, and a scrap transmission mechanism is arranged below the sloping baffle; a scrap collecting chamber is arranged below the scrap transmission mechanism, a material-conveying belt is arranged on the bottom surface of the scrap collecting chamber, and an oscillation starting machine is installed on the lower end surface of the sloping baffle; and the scrap transmission mechanism comprises a rotating shaft and a conveyer belt, a scraping plate is installed on the conveyer belt, and a hair brush is installed at the end of the scraping plate. According to the chip removal device for the carving machine, cutting fluid, metal scraps, fines and dust and the like can be effectively separated, iron scraps are prevented from accumulating, and recycling is achieved; and environmental pollution is reduced, and a clean, tidy and healthful working environment is provided for workers.

The invention relates to a large torpedo ladle blanking and assembly welding method, belonging to the technical field of molding, assembly and welding of smelting equipments, comprising the steps as follows: the blanking and molding of a ladle body and a ladle mouth, the use of a feasible positioner and a fixture to guarantee the assembly precision of a large cylinder and a trunnion, the making of the torpedo ladle welding craft; analyzing the weldability of the steel, choosing a plurality of welding materials and craft parameter, choosing the a low hydrogen type welding rod for tack welding, choosing mixed gas for protection welding, using the narrow track multi-layer welding, and before welding the cylinder and the trunnion, firstly a groove and the welding area are grinded and leaned by a polisher. After butt-mounted, the manual arc tack welding is used; the groove surface is checked by magnetic powder, which is qualified if none of drawback is checked out; the steel plate and the trunnion welding area are preheated evenly; before tack welding, the low hydrogen type welding rod is dried, then the symmetric tack welding is processed, and the interlaminar stress is eliminated by side welding; after the welding, the heat insulation is processed to cool slowly; the weld joint is checked by ultrasonic inspection, and the T-shaped joint is processed by RT checking. The invention has the advantages that the butt-mounted gap dimension of the cylinder and the trunnion is matched to the process requirements, and the coaxiality of the trunnion is less than 1 mm.

The invention discloses a multifunctional office chair. The multifunctional office chair comprises a seat cushion, armrests and a chair back which are fixed on a chair frame; the chair back is connected with an idler wheel massaging device below the seat cushion, a back knocking and massaging device and a chair back inclined device; the idler wheel massaging device, the back knocking and massaging device and the chair back inclined device are connected with a transmission device at the bottom layer of the chair frame and obtain power from the transmission device; the tail end of the transmission device is leaned against a locating rod and a slide link and is connected with a treading block receiving external power; and the treading block is connected with a treading frame and can swing around the treading frame. According to the mode, the multifunctional office chair achieves multiple functions of waist and back exercising, shoulder and neck massaging, an office chair and the like and is simple and easy in operation manner; the massaging device arranged at the chair back is simple and convenient to start so that legs can be exercised at the same time during waist and back exercising, shoulder and neck massaging, thus the space and time are effectively saved, and the physical and psychological health of office staffs is kept.

The invention discloses an initiative electromagnetic control system for slab and girder structure vibration. The initiative electromagnetic control system comprises a mechanical portion and a control portion. The mechanical portion comprises a wall made of nonferromagnetic materials, a slab and girder structure and electromagnets. One end of the slab and girder structure is connected with the wall, a displacement sensor is arranged on the slab and girder structure, and the electromagnets include electromagnets A, B, C and D. The control portion comprises a computer, a power amplifier and a full-wave rectification circuit without a filter. The computer is connected with the displacement sensor, an input end of the power amplifier is connected with the computer, one path of an output end of the amplifier is connected with the electromagnets A and D through a bridge rectification circuit without a filter while the other path of the same is directly connected with the electromagnets B and C. When the slab and girder structure vibrates, magnetic pole polarity and magnetic field intensity of the electromagnets can be automatically changed to attenuate the vibration quickly, so that damages to a mechanical system caused by vibration are reduced.

The invention provides a dual-purpose functional bed with refrigration and warming functions. The bed comprises a bedstead for forming a bed structure, a heat insulating layer located below the bedstead for effectively preventing heat emission and loss, and the upper part of the insulating layer has a matching facility with warming and cooling effects, a wood striped cover with porous structure for the hot gas below flowing up to the upper part, and a soft elastic pad placed on the cover for user to lie on, etc.

The invention relates to a high temperature solidification water based jet ink containing an inorganic pigment, and at least it includes inorganic pigment, water solubility synthetic resin, organic morphon and interpolymer. The inorganic pigment includes single-type, solid lyso-type pigment composed by single metal oxide and sulfide, or padding type pigment at least composed by two kinds of metal oxide and sulfide, and of course includes various kinds of metal small powder. Water solubility synthetic resin includes at least one of alkyd resin, vinyl resin, acrylic resins and beetle, of course includes the modifier of these resins. The organic morphon and interpolymer include several acrylic acidacrylic acid polymers, such as TPGDA, EO-HDDA, DMAEMA, NPGDA and so on.

The invention discloses a novel circuit board automatic milling machine. The milling machine comprises a micro motor, a horizontal moving device, milling cutters, a dust and water collection device, dust and water infiltration holes, a working platform, a collection box, a machine body, foot pads, a sliding groove guiding rail, a controller, a motor and a vertical moving device, the foot pads perpendicular to each other are installed on four corners of the bottom surface of the machine body, and the machine is provided with four foot pads. The novel circuit board automatic milling machine hasthe advantages that the automatic milling machine is provided with the dust and water collection device to separately collect dust and water while the dust and the water are collected by the dust andwater collection device, so that dust impurities are not splashed everywhere and cleaning is convenient, workloads of the cleaning are reduced, so that workloads of operators are reduced, water sources are not slashed everywhere, so that waste of the water sources is prevented and the water sources can be reused, and a good working environment is created for the operators, thereby guaranteeing physical health and mental health of the operators.

The invention belongs to the technical field of metal pipe machining, particularly relates to a pipe orifice grinding device for metal pipe machining. Aiming at the problems that a fixing mechanism ofa traditional pipe grinding device is simple and the fixing effect is general, the following scheme is provided, the pipe orifice grinding device comprises a workbench with legs welded at four corners at the bottom, a pipe fixing mechanism and an adjusting polishing mechanism are mounted on the two sides of the top end of the workbench correspondingly, the pipe fixing mechanism comprises a sliding plate slidably connected to the workbench and second stand columns welded to the two ends of the top of the sliding plate, a first stand column is welded to the other side of the workbench, and fixing supporting rings are welded to the top end of the first stand column and the top end of one of the second stand columns and rotationally connected with extending ends. Through mutual cooperation among the arranged fixing ring, the arranged threaded abutting rod and the arranged arc-shaped pressing plate, the metal pipe can be effectively fixedly grinding, and the situation that the grinding quality is affected due to shaking in the grinding process is prevented.

The invention relates to the technical field of terminals, in particular to an application management method and device and electronic equipment. The method includes the steps that a response to operation input by a user is made, and a management mode for managing an application is determined; an open permission of the application is acquired; if the open permission meets the condition for indicating that the application runs in the management mode, an icon of the application is displayed on an operation interface of the management mode. Thus, the problem that an existing terminal cannot effectively provide an effective management mechanism for parents to manage use of the terminal by a teenager is solved, the parents can well standardize operation behaviors of the teenage on the application in the management mode, therefore, the teenage is guided to correctly use the terminal and guarantee physical and psychological health of the teenage, and the experience feeling of the user is improved.

A waste gas purification device for pharmacy and chemical industries comprises a bottom plate, pushing devices, a purification device, a gas inlet device, a concentration device, first gas outlet devices, water inlet devices, a second gas outlet device and a recovery device, wherein first supporting blocks and first rollers are arranged on the bottom plate; each pushing device comprises a first air cylinder, a first support, a first pushing rod and a first pushing plate; the purification device comprises a purification tank, a first transverse plate, a first retaining frame, a first concentration plate, first cross rods, a first pipeline and first fixing frames; the gas inlet device comprises a gas inlet pipe, a first supporting rod, a first oblique rod, a second support, a gas inlet hopper, a first partition board, a first fan, a third support and fourth supports; the concentration device comprises a concentration frame, a second transverse plate, second oblique rods, a first filtering frame, a first concentration hopper and a first sealing ring; each first gas outlet device comprises a second partition board and a first connection rod. The waste gas purification device can completely purify waste gas in workshops of the pharmacy and chemical industries and clear dust and other impurities in the workshops.

The invention discloses a process for washing sesame with water. The process comprises the following steps of: removing and separating impurities and stones from the sesame at first; then immersing and washing the sesame with water, stripping the sesame and separating the sesame; drying, performing color selection and magnetic separation; and finally, finishing a process of manufacturing qualified sesame meat. The whole process is extremely smooth and the transferring frequency of the sesame is low, so the production efficiency is improved greatly; various measures, such as general screening, color selection, magnetic separation and the like, are used together, so cleaning and grading can be performed simultaneously; and the later targeted deep processing of the sesame is facilitated.

The invention relates to the technical field of psychology, in particular to a mindfulness training system based on brain wave real-time feedback. A brain wave signal acquisition module is mounted onthe head of people and connected with a mindfulness brain wave model, the mindfulness brain wave model is connected with a judgment control module, and the judgment control module is connected with auser terminal. The brain wave signal acquisition module is composed of a dry electrode, preamplifier modules, signal filter modules, A / D data sampling modules and a controller. The multiple preamplifier modules are connected to the dry electrode, each preamplifier module is connected with the corresponding signal filter module and the corresponding A / D data sampling module in sequence, and the multiple A / D data sampling modules are connected with the controller. The mindfulness training condition of a trainee can be fed back in real time, the trainee can be more reliably and effectively guidedto conduct mindfulness training, the brain wave status of a user can be balanced and improved, and people can be helped to get rid of depression and negative emotion so as to maintain physical and mental health.

The invention discloses a static balance, couple balance and dynamic balance measuring device with a high separation ratio, belonging to the dynamic balance detection equipment. The external periphery of a vibration disk (2) is correspondingly provided with a permanent seat (3); the vibration disk (2) is respectively provided with a lateral torsional mechanism (4), a crookedly-swinging mechanism (5), a horizontal tension and compression sensing mechanism (6) and a vertical tension and compression sensing mechanism (7), wherein a horizontal tension and compression bar (61) in the horizontal tension and compression sensing mechanism (6) is provided with a horizontal sensor (63); a vertical tension and compression bar (71) in the vertical tension and compression sensing mechanism (7) is provided with a vertical sensor (73); and the horizontal sensor (63) and the vertical sensor (73) are respectively connected with a computer measuring and controlling system. The purposes of correcting static unbalanced force and coupled unbalanced force can be achieved. The measuring device has the advantages of high measuring precision, small detection error, simple complete machine structure, few parts and small volume, is convenient to operate and stable to operate, and the labour productivity and the economic benefit of static balance, couple balance and dynamic balance measurement and correction can be greatly improved.

The invention relates to a manpower-driven liquid metal generating device based on an air bag, which comprises a pair of permanent magnets with reverse magnetic polarities, a liquid storage tank and the air bag, wherein the liquid storage tank is clamped between the permanent magnets and is filled with liquid metal; the air bag is located on a lower part in the liquid storage tank; an air inlet valve and an air outlet valve are respectively mounted at an air inlet and an air outlet of the air bag; the air let and the air outlet are formed on two opposite side walls of the air bag; a limiter is arranged at an opening of a cavity of the liquid storage tank; a foot-treading inflator is communicated with the air inlet valve; a pair of poles is tightly clung to and mounted on inner walls of the liquid storage tank on the side of the air inlet and the air outlet; the bottom of the poles is tightly clung to a part above the air inlet and the air outlet of the liquid storage tank; and the other ends of the poles extend out of the cavity of the liquid storage tank. Under the driving of manpower, the air bag inhales and deforms upward along the cavity of the liquid storage tank; under an effect of the deformation, the liquid metal flows upward along an inner wall of the cavity of the liquid storage tank; the magnetic line of force is cut during the flowing process of the liquid metal, thereby generating electric power; when the air bag restores from the deformation, the liquid metal flows reversely under an action of gravity so as to cut the magnetic line of force again, thereby generating electric power; and the generated electric power is exported by the pair of poles and is standby.

The invention discloses a constant temperature-constant humidity laboratory, which belongs to the field of laboratories. A workshop, an equipment room, an air feeding bin and an air mixing bin are arranged in the laboratory, the top of the workshop is provided with a porous plate suspended ceiling, an air feeding pipe is arranged in the air feeding bin, a fresh air hole introduces fresh air into the air mixing bin by a fresh air pipeline, an air conditioner unit is arranged in the equipment room, the lower part of the air mixing bin is connected to the air conditioner unit, the air conditioner unit is connected to the air feeding pipe by an air conditioner auxiliary electric heater, a plenum chamber and a humidifier, air returning upright columns are arranged in the workshop, the lower parts of the air returning upright columns are provided with air returning holes, and the air returning upright columns are connected to the air mixing bin by air returning pipelines. The constant temperature-constant humidity laboratory also comprises an intelligent control system having a PLC. Compared with the prior art, the constant temperature-constant humidity laboratory has the characteristics of high airflow circulation strength, stable wind speed, uniform temperature and humidity, no dust accumulation, good stability, capability of meeting a fresh air volume demand of workers, high disturbance resistance, high control precision and direct and visible temperature and humidity changes in the laboratory.

The invention relates to an enema for treating pelvic inflammation and other disease which comprises (by weight ratio) honeysuckle flower 12-24%, cnidium fruit 12-24%, dandehon herb 8-18%, wild chrysanthemum flower 8-18%, Philippine violet herb 8-18%, coix seed 8-18%, herba patriniae 6-16%, sargentgloryvine 6-16%, red peony root 5-10%, corydalis ambigua 5-10%, toosendan fruit 4-9%.

The invention discloses a granular quinocetone premix which comprises the following components in parts by weight: 5 to 50 parts of quinocetone, 41 to 89 parts of montmorillonite, 2 to 4 parts of sodium cyclamate and 3 to 5 parts of bonder. A preparation method for the granular quinocetone premix comprises the following steps of: uniformly mixing the components and a wetting agent through a mixing machine, then pelletizing by a squeezing granulator, shot blasting by a spherical shot blasting machine, sieving and drying to obtain the granular quinocetone premix with granularity of 20 to 80 meshes. The quinocetone premix is uniform in granules, mellow and full in appearance, accordant in color and luster, good in fluidity and stable in product quality and can be mixed with feed uniformly as well as has better effects on diarrhea prevention and growth promotion of beasts and birds; the preparation method for the granular quinocetone premix has the advantages of high granulation rate, environment-friendliness, dust free and capability of effectively avoiding cross infections.

The invention provides a three-dimensional heat-insulating reinforced concrete liner for mines. The three-dimensional heat-insulating reinforced concrete liner consists of two parts of a three-dimensional reinforced mesh casing bracket and a heat insulating support concrete spraying layer, wherein the three-dimensional reinforced mesh casing bracket is a full-closed three-center arch which is spliced from several mesh casing structural members and is fixed on the surface of country rock, so that an external support framework is formed, ground pressure is jointly withstood by the external support framework and a rock consolidation ring; heat insulating support concrete is formed by mixing haydite, vitrified micro bubbles, polypropylene fibers and common concrete, and is packed in the mesh casing bracket. The vitrified micro bubbles and haydite form a porous structure in the concrete, so that the coefficient of thermal conductivity is effectively reduced, and concrete has a good heat-insulating effect; the heat insulating concrete is sprayed and coated to a three-dimensional reinforced mesh casing, the concrete is packaged in numerous small-span bidirectional reinforcing bar arch casings, pulling and shearing stress borne by the spraying layer is obviously reduced, and the compressive strength is fully utilized, so that the requirement for the heat insulating support of tunnels can be well met, the healthy body and mind of staff working underground can be guaranteed, and the working efficiency in the underground mines is improved.

The invention discloses a variable-frequency variable-air-volume air pressure balancing system and method for laboratory waste gas treatment equipment. The system comprises an air feeder, an exhaust fan, air feeding tubes, exhaust air tubes, air feeding volume adjusting valves, exhaust air volume adjusting valves, a pressure sensor, an air volume sensor, a variable-frequency controller and a control terminal module, wherein the air feeder communicates with a plurality of indoor spaces through the air feeding tubes correspondingly, and the air feeding volume adjusting valve is mounted on each air feeding tube; the exhaust fan communicates with the plurality of the indoor spaces through the exhaust air tubes correspondingly, and each exhaust air tube is provided with an exhaust air volume adjusting valve; pressure sensors are respectively arranged in the plurality of indoor spaces and are used for acquiring indoor real-time pressure values; the control terminal module is used for receiving the indoor real-time pressure value transmitted by the pressure sensor and the air speed value transmitted by the air volume sensor and controlling the working states of the air feeding volume adjusting valves, the exhaust air volume adjusting valves, the air feeder and the exhaust fan in real time, so that the stability of the indoor pressure is effectively kept, and the indoor pressure is flexibly controlled.

The invention discloses a printing ink with high heat resistance. The printing ink is prepared from the following constituents in parts by weight: 5-10 parts of 1053 organic silicon resin, 2-4 parts of 9801 organic silicon resin, 1-2 parts of 804 organic silicon resin, 4-6 parts of thermoplastic acrylic resin, 10-15 parts of an alcohol-dissolving polyurethane solution, 9-10 parts of ternary hydroxyl-modified vinyl resin copolymer, 20-25 parts of a pigment, 20-25 parts of acetic acid, 22-25 parts of ethanol, 1-2 parts of ethyl acetate, 3-4 parts of acrylonitrile butadiene rubber, and 4-5 parts of acetone, wherein the mass concentration of the alcohol-dissolving polyurethane solution is 20-25%. The printing ink disclosed by the invention is high in heat resistance, is free of any change in color, any deformation and glue phenomenon when the temperature is larger than 100 DEG C, and is suitable for printing various materials; furthermore, the adhesive force is high, so that the pigment is durable and free of falling off; the printing ink is quick in drying, and the solvent on the printed material after printing is low in residual quantity, so that physical and psychological health for printing ink makers, pressmen and printed material users is guaranteed.

The invention relates to a nursing apparatus. In order to solve the technical problems on old people or hemiplegic patients in a nursing operation at present, the invention provides a novel nursing bed, which comprises a bed board and bed legs, wherein supporting beams which are connected to front and rear bed legs are respectively arranged on the left and right sides of the lower part of the bed board, and a water closet opening is formed in the bed board; the nursing bed is characterized in that a pushing plate which is capable of turning freely is embedded inside the bed board between the water closet opening and a bed head; the lower edge of the pushing plate is hinged with the edge of the water closet opening; a first pushing rod is arranged on the back surface of the pushing plate, and the first pushing rod is freely telescopic; a water closet opening plugging device and a water closet sliding device are arranged below the bed board; a water closet is arranged on the water closet sliding device; by virtue of the water closet opening plugging device, the water closet opening can be opened and sealed in different times; and by virtue of the water closet sliding device, the water closet can be aligned and can remove the water closet opening in different times. The novel nursing bed can be widely applied to families, nursing homes and other places of collective nursing.

The invention discloses a swimming machine which comprises a cylinder body, a cyclic acceleration device, a temperature control device, a filtering and sterilization device and a control device, wherein a water inlet and a water outlet are formed in two sides of the cylinder body, and the water inlet and the water outlet communicate each other by the cyclic acceleration device; the cyclic acceleration device and the temperature control device are disposed on the cylinder body, and the filtering and sterilization device is disposed on the cyclic acceleration device; and the control device is disposed on the cylinder body and is electrically connected to the cyclic acceleration device, the temperature control device and the filtering and sterilization device. According to the invention, the cyclic acceleration device controls water in the cylinder body to flow continuously at a set speed, so that a swimmer can keep swimming at an original position in a pool, and the swimmer can also do long-time and long-distance swimming exercise in limited space such as home; and the filtering and sterilization device is used for filtering and sterilization of the water in the cylinder body, so that the swimmer is protected from germ or virus infection, and physical and mental health is ensured.

The invention discloses an environment-friendly printing ink with high adhesive force. The environment-friendly printing ink is prepared from the following constituents in parts by weight: 10-13 parts of an alcohol-dissolving polyurethane solution, 15-18 parts of ternary hydroxyl-modified vinyl resin copolymer, 35-38 parts of a pigment, 25-29 parts of acetic acid, 18-20 parts of ethanol, 18-20 parts of rosin pentaerythrityl ester, 5-8 parts of microcrystalline wax, and 5-6 parts of acrylonitrile butadiene rubber, wherein the mass concentration of the alcohol-dissolving polyurethane solution is 36-38%. The environment-friendly printing ink with the high adhesive force disclosed by the invention is high in adhesive force, and suitable for printing various materials; the pigment is durable and free of falling off; the printing ink is quick in drying, bright in color, and free of toxic substances in the constituents; the solvent on the printed material after printing is low in residual quantity, so as to guarantee physical and psychological health for printing ink makers, pressmen and printed material users; the printing ink is good in adaptability, can be used for different seasons to obtain identical printed products, and is good in printing effect.

The invention relates to the field of animal husbandry and animal reproduction and particularly discloses a method for improving the fertility including the litter size and the sexual period breeding rate of older animals. It is found for the first time that the sexual period breeding rate and the litter size of multiparous animals can be remarkably increased by enabling the older animals to orally take a proper dose (the daily dose ranges from 0.05 g / kg to 1.58 g / kg) of alpha-ketoglutarate for a long time. The multiparous animals take alpha-ketoglutarate by adding alpha-ketoglutarate to drinking water or feed of the animals, adding according to requirements can be conveniently achieved, the dose can be changed in time, and the method can be widely used under an automatic feeding and water feeding system. The method is applied to livestock breeding, the edible safety of meat can be guaranteed, and meanwhile development of the breeding industry is also promoted.

The invention discloses a health-care seat cover and seat cushion with a function of purifying air. The seat cover comprises a seat cover body which can cover a seat, wherein the seat cover body comprises a seat cushion part and a back cushion part which is integrally connected with the seat cushion part; a plurality of breathable strip bags which are made of cloth are respectively arranged on the surface of the back cushion part and the surface of the seat cushion part; and each breathable strip bag is filled with granular filling substances. The seat cushion comprises a seat cushion body, a plurality of breathable bags made of cloth are arranged on the surface of the seat cushion body, and the breathable bags are filled with granular filling substances. The filling substances comprise plastic stone particles capable of releasing negative ions. By the characteristic that the seat cushion and the seat cover are placed in a cab or an indoor environment for a long time and can release lots of negative ions, smell of cigarettes, odor and foul smell in the air of the indoor environment or the cab are removed; and if a person inhales gas containing lots of negative ions at ordinary times, drivers and passengers can awake when driving and taking the vehicle, human immunity can be improved when the person stays at home, and physical and psychological health is kept.

An environmental protection type technology for manufacturing the steel spade includes heating the raw steel plate in roller furnace, die pressing by mechanical press, rolling its tubular part by a rolling machine, quenching in hardening medium, tempering in tempering furnace, washing in water washing apparatus, heating the sewage by the afterheat of roller furnace for evaporating and concentrating, and recovering the hardening medium. Its advantages are high quality of product, no environmental pollution.