596results about How to "Protect physical and mental health" patented technology

The invention relates to a system and a method for reminding teacher emotion in classroom teaching. The system comprises a sound acquisition module, a voice recognition module, an emotion classification module and an emotion reminding module, wherein the sound acquisition module is used for acquiring voice of a teacher during the teaching process in real time and forming voice information; the voice recognition module is used for performing voice recognition on the voice information, and judging whether the voice information contains set emotional words so as to obtain voice recognition results; the emotion classification module is used for performing emotion classification on the voice information to obtain emotion classification results, and conducting confidence coefficient grading on the obtained emotion classification results; and the emotion reminding module is used for conducting emotion reminding according to the voice recognition results and the emotion classification results. The system and the method adopt combined voice recognition and emotion classification for judging emotions of the teacher during the teaching process, increase accuracy rate of emotion judgment, help the teacher to conduct emotional control effectively in classroom, and protect physical and psychological health of students while increasing teaching quality.

The invention relates to an upcast method for producing a high-purity bright copper rod. The method comprises the following steps of: drying smelting copper raw materials needed by smelting, mixing, adding the mixture into a smelting furnace, and covering firing charcoal with the thickness of between 100 and 150mm on starting molten copper until red copper is entirely molten, wherein molten copper constantly flows toward a heat preservation furnace under the action of fluid force; boiling the high-temperature molten copper and degassing before ingot guiding, adding prepared high-purity graphite carbon powder onto the liquid level of the molten red copper in the heat preservation furnace, and aerating high-purity nitrogen at the position which is 50 to 100mm lower than the liquid level of the heat preservation furnace; covering the firing charcoal after boiling and degassing, covering a furnace cover, performing draw casting operation, drawing a draw casting machine for draw casting bythe upcast method, cooling in a graphite crystallizer by the upcast method to obtain a qualified high-purity oxygen-free copper rod blank, and winding on a drawn cast ingot passive winding machine; and performing multi-pass rolling and fine-drawing on the high-purity oxygen-free high-brightness copper rod blank by an eight-rack rod cold rolling mill, and drawing the blank until the copper rod is obtained by a wire drawing machine, namely obtaining a finished product after the copper rod passes the inspection.

The invention discloses an old people healthy service system based on a healthy service robot. The old people healthy service system based on the healthy service robot comprises the healthy service robot, an intelligent terminal and a cloud server. The healthy service robot comprises a robot body, a main control unit, a human-computer interaction unit and a medical detection unit; the human-computer interaction unit is connected with the main control unit and comprises a tablet computer, and the tablet computer is arranged in front of the chest of the robot body; the medical detection unit is connected with the main control unit and comprises an electrocardiograph detection device and an oxyhemoglobin saturation detection device, and the electrocardiograph detection device and the oxyhemoglobin saturation detection device are integrated to the robot body and connected with the intelligent terminal and the tablet computer through Bluetooth signals respectively; the tablet computer and the intelligent terminal are connected with the cloud server through the mobile Internet. The old people healthy service system based on the healthy service robot is convenient to use and rich in function, the service robot and the mobile Internet technology are combined, and the health status analysis of old people can be completed.

The invention relates to a method for preparing aqueous polyurethane. It comprises following steps: employing polyisocyanates bridging agent, proceeding copolymerization with excess aqueous polyether, liquid ploydimethyl oxosilane ternary block and getting ployoxosilane-polyether polymer, introducing polyurethane and organic silicon when generating carbamate with carbamate to main chain, adding chain propagation agent for chain propagation reaction and getting preploymer containing hydrophilic group; adding mixture of polyhydroxy compound and dissolvent into reaction system for second chain propagation reaction; neutralizing by adding neutralization agent, adding water for emulsification, adding polyamine for chain propagation; distilling to remove dissolvent after reaction and getting aqueous polyurethane modified with aqueous polyurethane-polyether polymer. The product possesses characteristics of polyurethane and polysiloxane, the storage stability, mechanics property and comprehensive performance is increased and it mainly is used as pigmentum and aqueous industrial coating material.

The invention provides a network content restricted browsing control system which runs in an electronic device. When a user requires opening network content in a webpage, the system reads type information of the network content marked in the webpage, and determines whether the user is permitted to browse the network content or not according to the type information and the network browsing permission of the user; and when the user is determined not to be permitted to browse the network content in the webpage, the system sends out warning information to warn the user, and trigger the electronic device to close the webpage. The invention also provides a network content restricted browsing control method. By the system and the method, juveniles are effectively prevented from browsing unsuitable network content of the age section of the juveniles, and physical and psychological health of the juveniles are protected.

The invention relates to a production method of abietic maleic anhydride resin, comprising the following two reaction steps of: 1, carrying out addition reaction on abietyl and maleic anhydride to generate an abietic maleic anhydride addition product; and 2, carrying out esterification reaction on the abietic maleic anhydride addition product and pentaerythritol to generate the abietic maleic anhydride resin. The production method is easy and convenient to operate, has the advantages of large temperature control range, high operability, small investment and stable product quality and is a method suitable for industrialized production; in the production method, appropriate process conditions including raw material proportion, reaction temperature, reaction time, catalysts, and the like, are adopted, thereby the acid value and the molecular weight range of a resin product can be effectively controlled; in addition, the resin product obtained with the production method has higher acid value of 150-170 mg KOH / g, reasonable softening point at 140-155 DEG C and good water solubility and is suitable for producing water-based ink, and a formed coating film has toughness and better after-tackiness resistance, water resistance and alkali resistance.

The invention discloses an air curtain sealing dedusting system on a fully-mechanized excavating face, comprising a fully-mechanized roadheader body. The fully-mechanized roadheader body is provided with an air curtain generating device; the air curtain generating device is positioned between an excavating head and a driver of the fully-mechanized roadheader body and can spray air flows to the left side and the right side of the fully-mechanized roadheader body in an upright upward direction so as to form a closed air curtain perpendicular to the excavating direction of a fully-mechanized roadheader; a closed space used for accommodating dust generated when the fully-mechanized roadheader body excavates is formed by the closed air curtain and the excavating face of the fully-mechanized roadheader body; and the fully-mechanized roadheader body is also provided with a dedusting device used for absorbing the dust inside the closed space. By arranging the ari curtain generating device on and the dedusting device on the fully-mechanized roadheader to effectively seal the dust in a space with unattended operation, the invention enhances the dust absorption efficiency of the dust positioned on the excavating head, reduces the influence on a visual line of an operator and enhances the operation safety because the operator can clearly view evacavating.

The invention relates to the coal mine roadway drivage machinery, in particular to a heavy hard rock tunneling machine which can cut a semi-rock roadway and a whole-rock roadway with high hardness. The tunneling machine solves the problem that the prior mole is not suitable for rock roadway drivage, can greatly improve the drivage working efficiency of the whole-rock roadway, and dramatically reduce working intensity of operators. The tunneling machine has an integral structure with high strength, a complete machine with heavy weight, a horizontal side support arranged on the back of the machine, and a device with high stability; the machine is provided with a mighty dust absorption system and an inside and outside spray dust suppression system, which effectively improves working environment of the operators; a traction of the tunneling machine adopts a full-sealed structure to increase traction driving force and improve propulsive force of the cutting; the tunneling machine has a small assembly, a large diameter and an inertia cutting head, adopts a reliable and highly-efficient hydraulic system matched with a high-strength point-attack pick, which greatly improves unidentate cutting force, thereby the tunneling machine has the ability of cutting the semi-rock roadway and the whole-rock roadway with high-hardness (f8).

The invention discloses a production formula and construction technology of an ultra-wear-resistant ground. The ultra-wear-resistant ground is prepared by the following steps: premixing a dry powder material A and a liquid material B according to a weight ratio of 5:1 to 10:1 on the construction site so as to obtain semi-dry mortar, evenly spraying the semi-dry mortar on the surface of concrete, which starts to cure, for 2 to 3 times so as to make the surface flat and smooth, levelling and polishing the surface by using a mechanical trowelling machine, and controlling the flatness according to the related national standards during the construction process. The mixing of the dry powder material A and the liquid material B can greatly improve the wear resistance and strength of the wear-resistant ground. The dry powder material is subjected to dry-wet premixing before spraying, so the requirement on base slurry is low, the dry powder material can more easily penetrate into and combine with the basic layer, and the finished ground has uniform strength and wear resistance. Moreover, material spraying after the wet-dry premixing will not generate dusts, so the environment pollution is avoided, and the health of workers is protected. The materials that are subjected to wet-dry mixing are more easily combined, and the phenomenon of peeling, delaminating, and insufficient curing is avoided.

The present invention relates to the field of intelligent televisions, and discloses an intelligent television playback control system and method. A playback control function of the intelligent television in a kid mode is provided for parents and can effectively protect physical and mental health of kids. The method comprises a first step that after a user turns on the intelligent television, it is identified and determined that a current user is a kid user or an adult user according to voice, if the current user is the kid user, a second step is performed, and if the current user is the adult user, the intelligent television is used normally; and the second step that the intelligent television enters the kid mode, and enables a function of protecting the kid in watching TV according to configuration information stored in a user information storage module and a determining result of an infrared sensing module.

The invention relates to an enclosed animal experiment operation box and aims to solve the problems that the conventional pharmacological animal experiment causes environmental pollution which causes damage to instruments and equipment and influences experimenters' health, the operation view is not clear, and the light is insufficient. The enclosed animal experiment operation box comprises a box body and an operational table assembled inside the box body and used for fixing an experimental animal, and is characterized in that the box body comprises a base, a frame, a front baffle, a back baffle, a left baffle, a right baffle and an erector, fixed limiting posts and adjustable limiting posts are arranged on the operational table and limited to the rails of the base, guiding rods and an adjusting screw rod used for controlling the erector to move are arranged on the base, and a magnifier is arranged in the picture frame of the erector. According to the invention, the enclosed animal experiment operation box has the advantages of being simple in operation, convenient to adjust and the like, and provides modern experimental equipment with a clean and excellent working environment; the view is clean and the light is sufficient when experiments are carried out; the accuracy and the success rate of the experiments are significantly improved, and the experimental appropriation expenditure is reduced.

A sponge cutting mechanism with vibrative knife heads is composed of a supporting frame, a left bench and a right bench on said supporting frame, a gantry between left and rght benches, longitudinal and transverse vibrators, longitudinal and transverse knives, an electric controller, and a computer system for numeral control.

The invention discloses a method for making a terminal enter a specific scene mode, which includes the following steps: acquiring input control voice, and extracting the voice features of the control voice; finding a scene mode corresponding to the voice features according to the voice features of the control voice; and making a terminal enter the scene mode corresponding to the voice features. The invention further discloses an electronic terminal and a computer readable storage medium. The problem that children are out of control in terminal use is solved. The physical and mental health of children using terminals is ensured.

The invention provides an umbilic clamping cutter, comprising a pushing and cutting rod, a mother clamp, an infant clamp and a clamp holder, wherein one end of the pushing and cutting rod is provided with a blade while the other end is a cartoon; one surface of the pushing and cutting rod is fixed with a pick matched with the infant clamp; and one end of the clamp holder is connected with the mother clamp and the infant clamp while an inwall chute at the other end thereof is matched with the pushing and cutting rod. As one end of the clamp holder is manufactured into a big opening, only one end of the clamp holder operates by fingers, the whole operation process can be seen clearly from the big opening; the umbilical cord is clamped by two clamps in advance so as to facilitate the blade to cut; when in operation, the pushing and cutting rod is driven by hands to cut the umbilical cord actively like an injector, thus having easy cut-off and good cutting effect, saving labor, and avoiding blood from sputtering, thereby ensuring physical and psychological health of medical care personnel. The umbilical cord is clamped at first and then the blade is moved to cut, so the length of the reserved umbilical head can be short so as to shorten the drying time thereof, accelerate drop of umbilical head and avoid infection risk induced by the overlong reserved umbilical head.

The invention provides a digestive endoscopy assisting interventional robot control method and system, and belongs to the field of medical robots. The digestive endoscopy assisting interventional robot control method comprises the following steps: extracting and processing action messages of an operator operating a main end handle, and obtaining a movement command of a robot according to the set position control and speed control working modes; measuring convey resistance and torsional resistance torque messages according to a force feedback device mounted at an actuator end, removing zero offset and gravity disturbance, and displaying the processed messages on a human-computer interaction interface for prompt; feeding the messages back to a main end control handle to provide force sensing for the operator, wherein when the resistance and the resistance torque exceed the set value, an upper computer alarms, and the convey force and the torque are partially and autonomously adjusted to a safe range; extracting and processing information of a pedal; switching the working modes; and performing the functions of air supply, water supply and suction. The control system comprises a main end control device, a bottom-layer controller, a force feedback device, a position limitation protector, a motor driver, an air pressure adjustor, a photoelectric coupler and a solenoid valve. The digestive endoscopy assisting interventional robot control method and system can improve the security of a digestive endoscopy assisting interventional robot.

The invention discloses a tunnel pre-stressed restrained filling lining support system with yielding and energy-absorbing functions and a technology. The system includes multiple restrained filling lining bodies arranged along the circumference of a tunnel, and restrained yielding sleeves are connected between the restrained filling lining bodies. Each restrained filling lining body includes a restrained shell which has a filling body inside. Pre-stressed anchor bolts are installed in a penetrating manner along the outer arc surface and the inner arc surface of each restrained shell. A numberof anchor rope holes are arranged in the inner arc surfaces of the restrained shells. The pre-stressed anchor bolts are installed in a penetrating manner in the anchor rope holes by self-locking yielding trays. The pre-stressed anchor bolts are applied with a pre-stress and can produce radial compression on the restrained shells and the inner filling bodies thereof so that the pre-stressed anchorbolts, the restrained shells and the filling bodies constitute a composite bearing shell together. When the pressure on the external surrounding rock of the tunnel exceeds the yielding value set by the restrained yielding sleeves and the self-locking yielding trays, the whole lining support system can realize yielding and energy absorbing along the circumferential and radial directions of the tunnel.

The invention discloses an environment-friendly solvent universal glue and a preparation method thereof. The best weight ratio of the universal glue is 9% of starburst SBS thermoplastic styrene-butadiene rubber, 2% of linear SBS thermoplastic styrene-butadiene rubber, 7% of rosin, 9.5% of hydrogenated rosin, 4% of C9 petroleum resin, 6% of a tackifying resin, 15% of No. 6 extraction solvent oil, 30% of methylal, 15% of methyl acetate, 0.2% of a wetting agent, 0.8% of an anti-aging agent, 0.5% of an antioxidant and 1.0% of a softening agent. The environment-friendly solvent universal glue has the comprehensive superiorities of low VOC, high solid content, no heavy metals, low smell, excellent initial adhesion, excellent cohesive strength, excellent permanent adhesion, excellent heat-resistant and ageing-resistant performance, short drying time, long opening time, large spraying area per weight (glue economization), and the like, has the advantages of reducing environment pollution, improving operation and construction environment, being low cost and low smell, and the like, is widely used in plate decoration industries of aluminum-plastic plates, clamping plates, density plates, paint-free plates, polymer plates, metal sheets, and the like, and is particularly suitable for applications in green high-grade decoration industries.

According to the invention, the human eyes are accurately positioned by a scale-invariant gradient integral projection algorithm and a Kalman filtering method, the degree of fatigue of the human eyes is detected by a calculation method based on the PERLOG feature, and different intervention measures are taken according to the degree of fatigue. The process mainly comprises the following steps: first, an image frame sequence of a user when the user uses a smart phone is collected through the front-facing camera of the smart phone, all the frames are sequentially processed by the smart phone, and the smallest rectangle containing the human eyes is positioned; second, the smallest rectangle containing the human eyes is positioned within a certain range of accuracy, the rectangle obtained each time is scaled according to the same fixed ratio, the area of the rectangle is worked out, the opening and closing condition of the eyes is judged according to an eye opening and closing threshold obtained through training, and the PERLOG feature value for judging the degree of fatigue of the human eyes is updated; and third, corresponding intervention measures are taken according to the degree of fatigue.

An environment-friendly efficient dust suction device for textile spinning comprises a bottom plate, a first filtering device, a second filtering device, a water storage device, a collection device, a third filtering device and a discharging device.A first bent rod and a second bent rod are arranged on the bottom plate; the first filtering device comprises a first frame, an air inlet funnel, a first filter screen, a plugging block, a first spring, a filter column, a sponge rod, a second spring and a first support; the second filtering device comprises a second frame, a second filter screen, a third spring, a third filter screen, a gathering block, a first pipeline, a first fan and a first transverse rod; the water storage device comprises a water tank, a slope block, a cover plate, a holding rod, a second pipeline, a first valve, a first oblique rod, a second support, a second oblique rod and a third support; the collection device comprises a collection tank, a fourth filter screen and a first supporting rod.The environment-friendly efficient dust suction device is capable of sucking dust, particle impurities and the like generated in textile spinning and discharging after multi-stage filtration and purification, so that purification of surrounding air environment of textile spinning can be realized.

The invention relates to the field of tunnel engineering, in particular to a method for laying a tunnel portal strengthened illuminating system. The method is characterized in that a plurality of illuminating devices are arranged in an entrance section and an exit section, and the illuminating devices arranged in the entrance section or the exit section are distributed in a thinning mode from a tunnel portal to a distribution area in a tunnel, namely the illumination level is reduced gradually from the tunnel portal to the inside of the tunnel. The method for laying the tunnel portal strengthened illuminating system has the advantages that the laying scheme is acquired by setting up a testing shed in the site to analyze, compare and select data of a plurality of schemes, and light guides are arranged in the entrance section and the exist section of the tunnel by the laying scheme to replace high strength gas-discharge light sources, so that the gentle transition of the illumination levels on road surfaces inside and outside the tunnel is realized, and the zero electric energy loss of tunnel strengthened illumination is realized.

The invention discloses a method for manufacturing an all-weather and full-automatic multi-layer temperature-control circular greenhouse. The greenhouse is characterized by consisting ofcomprising support columns, a light collecting layer, heat insulation layers, a skeleton, a driving device, a rotating device, a moving device, a horizontal working arm, a vertical working arm, layered rails, a snow sweeping arm, a snow sweeping device and the like. The bottom of the multi-layer ceiling is connected with the layered rails on the ground through the moving device, and the automatic control module can freely control the greenhouse to rotate through the moving device according to the time and sunlight intensity. The greenhouse can be sufficiently irradiated by sunlight in daylight, and the multi-layer ceiling is fully insulated at night, so that the temperature in the greenhouse is stable, the heat insulating effect is good and the yield rate of crops is greatly enhanced; the labor cost is reduced, and the service life of field ridge for farmers is prolonged.

The invention discloses a production process of strong aromatic white wine. The production process disclosed by the invention comprises the following steps: a, selecting sorghum, rice, sticky rice, corns, buckwheat and wheat according to various material properties and the gelatinization degree of starch; b, crushing various screened raw materials to produce brewing grains; c, mixing and uniformly stirring the immersed brewing grains with steamed bran and fermented grains, and putting into a rice steamer to steam and gelatinize; d, adding clear water after mixing the cooled brewing grains with yeast powder, and putting into a pit to ferment in a sealed manner for 25-30 days; e, taking out the brewing grains after completing fermentation, and distilling; f, taking out brewing grain residues after distilling, adding the bran to cool, then, uniformly stirring by adding yeast powder, and putting into the pit again to carry out secondary fermentation in a sealed manner for 12-15 days; and g, taking out the brewing grain residues after secondary fermentation, and distilling again so as to obtain the strong aromatic white wine. The strong aromatic white wine produced by the invention is more soft-sweet, enjoyable, and lasting and aromatic after taste.

The invention discloses a punching machine with a shock absorption function. The punching machine comprises a workbench. The bottom part of the workbench is fixedly connected with a rubber column; the bottom part of the rubber column is fixedly connected with a shock absorption device; the shock absorption device comprises a shock absorption plate, rubber balls, springs and a groove base plate; the bottom part of the groove base plate is fixedly connected with a base; the left side of the top part of the base is fixedly connected with a rack; and a controller is arranged on the front surface of the rack, and is electrically connected with a motor and an air cylinder. According to the punching machine with the shock absorption function, through arranging the shock absorption device and the rubber column, when the punching machine is operated, the shock absorption device and the rubber column can play a good shock absorption role in the whole shock-absorption punching machine, the stable operation of the machine is ensured, the physical and psychological health of a user is protected, and in addition, the service life of the shock-absorption punching machine can be also prolonged; and through arranging a layer of sound absorption sponge in a machine box, the noise produced when the machine is working can be reduced.

The invention relates to an indirect competition enzyme linked immunoreagent kit for detecting lead ions and a manufacturing method of the kit. An elisa plate enveloped by lead ion envelope antigens, lead-ion monoclonal antibodies, elisa second antibodies, a substrate color developing solution, a stop solution, a lead ion standard solution, a washing liquor concentrated solution and a sample treating liquid are arranged in the kit. The indirect competition enzyme linked immunoreagent kit can detect the lead irons in a trace mode, is used for detecting the lead iron contamination residual in the environment, the soil, water, foods and containers, and has the advantages of being rapid, easy and convenient to use, sensitive, peculiar, economical and the like. The kit is few in detection step and high in timeliness, saves detection time, reduces operation errors and can perform field detection. The kit not only can be used for screening samples in large batch, but also can perform rapid detection on samples in small batch, and provides effective means for food import and export inspection, food inspection, monitoring and evaluation of environmental pollution and the like.

The invention relates to a multifunctional natural bamboo decorative accessory. A fixed framework is fixedly arranged above a base; more than two sets of transverse rods are arrayed at left and right sides of the fixed framework in parallel in a mutually-staggered manner; the fixed framework and the transverse rods are glued and fixed by a mortise joint; the fixed framework is glued and fixed by two vertical bamboo sections and a transverse bamboo section through a mortise joint to form an n-shaped frame; each transverse rod is formed by a plurality of sections of bamboo cylinders; a planting opening is arranged in the middle of the upper side of each transverse rod; a water inlet is arranged at one end of the upper side of each transverse rod and a water outlet is arranged at the other end of the lower side of the transverse rod; the water outlet of the previous section of the transverse rod corresponds to the water inlet of the next section of the transverse rod one by one; one end of a water conduit passes through a hollow part inside the vertical bamboo section at one side to reach the water outlet at the topmost part and the other end of the water conduit is connected with a water pump; a thermometer is arranged on the vertical bamboo section at the other side; a bamboo decorative object is arranged at an interval position of the two sets of the transverse rods; a negative ion generator is arranged in the hollow part of the transverse bamboo section of the fixed framework; and transparent decorative patterns are arranged on the front face of the transverse bamboo section.

The invention provides an integrated grinding and polishing dust catcher. The integrated grinding and polishing dust catcher comprises a box type rack, a grinding and polishing machine and a control electric box, the inner part of the lower end of the box type rack is provided with a dust extraction device, the grinding and polishing machine is arranged in front of a dust extraction inlet of the dust extraction device, a dust accumulation filter cavity is arranged at the upper end of the box type rack, a dust accumulator is arranged below the dust accumulation filter cavity, a plurality of dust filter elements and a blowing pipe are arranged at the top of the dust accumulation filter cavity, a pulse electromagnetic valve controlling the air inflow of the blowing pipe is arranged at the air inlet end of the blowing pipe, and a plurality of nozzles in one-to-one correspondence with the dust filter elements are arranged on the blowing pipe. Dust-containing air enters the dust extraction device from the dust extraction inlet and is then adsorbed to the outer surfaces of the dust filter elements. Filtered clean air is discharged out from the top via the dust filter elements. Pulsating dust-cleaning is carried out on the dust filter elements by utilization of compressed air, and dust blown to fall is accumulated in the dust accumulator, effectively collected and treated in a centralized and unified manner, so that the physical and psychological health of workers is protected, and the occurring rate of occupational diseases is reduced.

The invention provides a drilling, loading, transporting and anchoring integrated machine with dual platforms and four arms for a coal roadway, comprising a caterpillar travel part, an engine body platform, four drill arm parts, four hydraulic drilling rig parts, a provisional supporting device, a hydraulic and operation system, a pump station part, a rear support part, a shovel plate part, a first conveyor and a second conveyor and being characterized in that the integrated machine also comprises a lifting platform and a platform lifter; the platform lifter is arranged on the engine body platform, and the lifting platform is connected above the platform lifter; four drill arm parts and four hydraulic drilling rig parts are installed at the rear sides of the upper and lower parts and the left and right sides of the lifting platform; and the provisional supporting part is fixedly installed on the front end of the lifting platform. The integrated machine in the invention can complete all procedures such as drilling, coal loading, coal transporting, anchor bolts and anchor cables construction, provisional supporting and the like, and improves the centrality, flexibility and systematicness of tunneling equipment, thus reducing mechanical handing, installing and dismounting operations on headwork faces, lowering labor intensity for workers and increasing work efficiency of tunneling.

The invention relates to an indirect competition enzyme linked immunoreagent kit for detecting mercury ions and a manufacturing method of the kit. An elisa plate enveloped by mercury ion envelope antigens, mercury-ion-resisting monoclonal antibodies, elisa second antibodies, a substrate color developing solution, a stop solution, a mercury ion standard solution, a washing liquor concentrated solution and a sample treating liquid are arranged in the kit. The kit can detect the mercury irons in a trace mode, is used for detecting the mercury irons in the environment, the soil, water, foods, medicines, cosmetics and the like, and has the advantages of being rapid, easy and convenient to use, sensitive, peculiar, economical and the like. The kit is few in detection step and high in timeliness, saves detection time, reduces operation errors and can perform field detection. The kit is low in requirement for pretreating samples, simple in treatment process, not only can be used for screening the samples in large batch, but also can perform rapid detection on the samples in small batch, and not only provides technical support for environment and food safety, but also provides effective technological means for food import and export inspection, food inspection, monitoring and evaluation of environmental pollution and the like.

The invention discloses a range hood with purifying and sterilizing functions. The range hood comprises a box body as well as a draught fan and a smoke collecting cavity which are installed in the box body, wherein a flow mixing box is installed at the rear of the smoke collecting cavity and in the box body, and is internally provided with an ozone and plasma generator and a flow mixing device which can be taken as a purification reaction area for smoke, ozone and plasma ions, the ozone and plasma generator comprises a glass tube, a conductive electrode in the glass tube and a metal net wrapping the glass tube, the conductive electrode, the glass tube and the metal net are integrally fixed in a shell of the flow mixing box. According to the range hood, after smoke enters from the smoke collecting cavity, the smoke is purified in the flow mixing box through a series of physical corrosion and electrochemical reaction, smoke fluid with ozone and plasma is constantly disturbed for reacting in the box body of the range hood, and finally, after purification and deodorization, clean and environment-friendly smoke fluid is discharged out of the box body.

The invention relates to a machine for tunneling a coal mine roadway, in particular to a full-face rectangular hard rock tunneling and anchoring integrated machine. The full-face rectangular hard rock tunneling and anchoring integrated machine comprises a machine frame which is sequentially provided with a cutting device, a support device, a propelling mechanism, a side supporting mechanism, a rear supporting mechanism and a ventilation dust removal device from front to back; a deslagging mechanism is arranged in the middle of the machine frame in the horizontal direction; the front end of the propelling mechanism is fixed on the machine frame, and the rear end of the propelling mechanism is fixed on the side supporting mechanism; the cutting device consists of a cutterhead, a cutterhead supporting frame and a cutterhead driving mechanism; the cutterhead supporting frame is fixedly connected with the front end of the machine frame; the cutterhead comprises a combined cutterhead frame consisting of a conical top and a cylindrical bottom; a plurality of disc cutters are arranged at the peripheries of the conical top and the cylindrical bottom of the cutterhead frame; and the cone angle alpha of the conical top of the cutterhead is 140 to 160 degrees. By the full-face rectangular hard rock tunneling and anchoring integrated machine, the problems that the conventional tunneling machine is not suitable for full-face hard rock quick tunneling work, cutting teeth are high in wear speed when cutting hard rock, a machine body vibrates greatly, and reliability is low can be solved, the tunneling working efficiency of the full-face rectangular roadways can be improved greatly, labor intensity of workers can be reduced, and working environment and equipment reliability can be improved.