Clamp bending fixture and clamp dual-lug forming die

The invention discloses a clamp bending fixture and a clamp dual-lug forming die. The dual-lug forming die comprises a first upper pressing die and a first lower pressing die; a first forming groove corresponding to a clamp head, a clamp neck and a clamp tail and extending downwards and a supporting surface corresponding to a clamp dual-lug part and in anti-push limiting fit with the clamp dual lugs in the downward direction are formed in the first lower pressing die; a first pressure head matched with the first forming groove is arranged on the first upper pressing die at a position corresponding to the first forming groove up and down. In use, the first pressure head moves downwards and presses a clamp blank into the first forming groove, and meanwhile, the supporting surface supports and stops the dual-lug part of the clamp, and therefore, the dual-lug part of the clamp can be bent; the bending accuracy of the dual-lug part is guaranteed by use of the design and the use of the die and ...

Controllable W etching solution relative to laminated metal side etching and preparation method thereof

The invention relates to a controllable W layer etching solution relative to laminated metal side etching and a preparation method thereof. The composition comprises an oxidizing agent, a pro-oxygen agent, a buffer reagent, an inhibitor, a surfactant and ultrapure water. The etching solution utilizes an oxidizing agent to oxidize W to form an oxide to be etched. Inorganic acid is used as a secondary oxidant; buffer reagents such as ammonium acetate and the like provide a stable etching environment for the etching liquid; the inhibitor can inhibit the influence of aluminum ions and copper ions on W etching; the surfactant can reduce the surface tension of the solution and promote the uniformity and integrity of W etching. The invention provides the W etching solution which is controllable relative to lateral etching of the laminated metal and the preparation method of the W etching solution, the W layer in the laminated metal can be effectively controlled to be etched by using the etching ...

Urban sewage treatment device

The invention discloses an urban sewage treatment device, and belongs to the technical field of sewage treatment, the urban sewage treatment device comprises a box body provided with a water inlet and a water outlet, a filtering channel is arranged between the water inlet and the water outlet, and a filtering mechanism used for filtering sewage entering from the water inlet is arranged in the filtering channel. The filtering mechanism comprises a rotating drum which is transversely or obliquely arranged and a plurality of screening holes formed in the rotating drum, the rotating drum can rotate relative to the axis, and impurities are filtered out from the peripheral surface of the rotating drum through the screening holes; a first impurity discharging channel communicated with the box body and the outside is arranged on the side wall of the box body, and when the rotating drum rotates, impurities on the peripheral face, close to the first impurity discharging channel, of the rotating drum ...

Real-time alarm system for industrial enterprise and method thereof

The invention provides a real-time alarm system for industrial enterprise and a method thereof. The system comprises work stations, a system platform computer, an information transmitter-receiver, an information transmission network, and a called terminal. According to the invention, technical methods such as industrial data communication and mobile phone short message sending are used to carry out real-time monitoring of industrial enterprise process data, send alarm information in real time and realize the real-time alarm function for industrial enterprise.

High-density melamine foam and preparation method thereof

The present invention discloses high-density melamine foam, which comprises the following raw materials; a primary polymer of waterborne melamine formaldehyde resin, solid methylol melamine, a polar solvent, a surfactant, a foaming agent, a curing agent and an additive. The present invention also discloses a preparing method of the high-density melamine foam, comprising the following steps: preparing a primary polymer of waterborne melamine formaldehyde resin; uniformly mixing the primary polymer of the waterborne melamine formaldehyde resin, the polar solvent, the surfactant and the additive to obtain a mixture A; uniformly mixing the mixture A with the solid methylol melamine to obtain a mixture B; uniformly mixing the mixture B with the foaming agent to obtain a mixture C; uniformly mixing the mixture C with the curing agent to obtain a mixture D; and carrying out microwave radiation, foaming, curing, drying and quenching on the mixture D in a microwave foaming device to obtain the high-density melamine foam. The melamine foam described in the present invention has high density and high strength performance. 1. High-density melamine foam , characterized by comprising the following raw materials is by weight: 0-99 parts of primary polymer of waterborne melamine formaldehyde resin , 1-100 parts of solid methylol melamine , 0-43 parts of polar solvent , 0.5-5 parts of surfactant , 1-20 parts of foaming agent , 0.1-10 parts of curing agent and 0-10 parts of additive.2. The high-density melamine foam according to claim 1 , characterized in that the high-density melamine foam comprises the following raw materials in parts by weight: 50-90 parts of primary polymer of waterborne melamine formaldehyde resin claim 1 , 10-50 parts of solid methylol melamine claim 1 , 0-10 parts of polar solvent claim 1 , 1-3 parts of surfactant claim 1 , 5-15 parts of foaming agent claim 1 , 1-5 parts of curing agent claim 1 , and 0-5 parts of additive.3. The high-density melamine foam ...

INTERNAL VIDEO MONITORING SYSTEM AND METHOD FOR GIS DEVICE

Provided are a gas insulated switchgear (GIS) internal video monitoring system and a GIS internal video monitoring method. The GIS internal video monitoring system includes a GIS video sensor installed on a GIS enclosure and configured to acquire an open/close state of a GIS internal conductor in a real time manner, an intelligent power source module, a video server, and a video monitoring background system configured to control the intelligent power source module to supply power to the video sensor, where the GIS video sensor is connected with the video monitoring background system through the video server. 1. A gas insulated switchgear (GIS) internal video monitoring system , comprising:a GIS video sensor installed on a GIS enclosure and configured to acquire an open/close state of a GIS internal conductor in a real time manner;an intelligent power source module;a video server; anda video monitoring background system configured to control the intelligent power source module to supply power to the video sensor, whereinthe GIS video sensor is connected with the video monitoring background system through the video server.2. The GIS internal video monitoring system according to claim 1 , wherein communication between the video server and the video monitoring background system is performed in accordance with the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol.3. The GIS internal video monitoring system according to claim 1 , wherein claim 1 , in the video sensor claim 1 , an input terminal of a power source module and an output terminal of a signal output module are connected with a surge protector.4. The GIS internal video monitoring system according to claim 1 , wherein the video monitoring background system comprises a main program module claim 1 , a data management module claim 1 , an information exchange module and a signal decoding and processing module claim 1 , and the main program module is connected with the data management module claim 1 , ...

Nitrogen flame retardant, preparation thereof and flame-retardant silicone rubber compound

The invention discloses a nitrogen flame retardant. The nitrogen flame retardant is prepared from following raw materials in parts by weight: 1.5 to 3 parts of a catalyst, 100 to 150 parts of melamine, 100 to 150 parts of cyanuric acid, 0.5 to 1.5 parts of a dispersant, 0.1 to 0.5 part of pentaerythritol, 0.2 to 1.0 part of sodium hypophosphite, and 0.2 to 0.8 part of zinc borate; the following condition can be met at the same time: the molar ratio of the melamine to the cyanuric acid is 1 to 1. The invention further discloses a preparation method for the nitrogen flame retardant. The preparation method includes the following steps: water, the catalyst, the melamine, the cyanuric acid and the dispersant are mixed firstly; after reaction of the mixture, pentaerythritol, sodium hypophosphite and zinc borate are added and mixed with the mixture to obtain the nitrogen flame retardant. The invention further discloses a flame-retardant silicone rubber compound including the nitrogen flame retardant ...

Constant power control method and system for low-temperature heating power supply

The invention discloses a constant power control method and system for a low-temperature heating power supply. The method comprises the steps that voltage induction lines are connected to the two ends of a load connected with a switching power supply power converter; a current iO of a load is sampled and filtered by a first digital low-pass filter to obtain a filtered load current, and a voltage UL of the load is sampled through a voltage induction line; a set load constant power value PN sequentially passes through a digital amplitude limiter and a slope limiting module to obtain load power; the load current and the load voltage are multiplied to obtain actual power of the load; a deviation value delta P is obtained and is input into a PID (Proportion Integration Differentiation) regulator; the duty ratio adjusting quantity M2 is sent to a pulse width modulation generator, a pulse width modulation signal corresponding to the duty ratio is generated and input into a switching power supply ...

Long-life copper etching solution and preparation method thereof

The invention relates to a long-life copper etching solution and a preparation method thereof. The copper etching solution composed of the copper salt, the inorganic acid, the organic acid, the chelating agent, the surfactant, the inhibitor, the organic alkali and the deionized water is stable in etching rate, uniform in etching and longer in etching life in the process of etching copper and copper alloy. Anions in the inorganic acid and the organic acid can increase the solubility and the solubility of the copper complex in a solution, the stability of the etching solution is improved, and the etching service life of the etching solution is prolonged; the organic alkali in the etching solution can complex redundant copper ions in the etching solution, the etching rate is stabilized, the pH of the etching solution is adjusted, the stability of the etching solution is improved, and the etching life of the etching solution is prolonged.

Image display method based on CT (Computed Tomography) plain scanning and data reconstruction

The invention discloses an image display method based on CT (Computed Tomography) plain scanning and data reconstruction, and relates to the field of image processing equipment. The method comprises the following steps: performing primary spiral CT scanning on the chest of a patient, and changing a scanning body position to obtain a plurality of CT sequence original images of a left coronary artery trunk and an anterior descending branch; the left coronary artery trunk and front descending branch CT sequence original image is converted into an image format according to the needed window width and window level, and a CT sequence image is obtained; acquiring three-dimensional data of the CT sequence picture, and performing data reconstruction on the three-dimensional data; and reconstructing a three-dimensional image through image processing equipment by using the three-dimensional data after data reconstruction, and displaying coronary artery blood vessels, intra-pulmonary blood vessels, ...

Waist-drum-shaped carrier roller set for round pipe belt conveyor

The invention relates to a waist-drum-shaped carrier roller set for a round pipe belt conveyor. The waist-drum-shaped carrier roller set comprises a carrier roller set body, supports, a conveying belt, shells, shafts and bearings. The supports are fixed to the two ends of carrier rollers, the carrier roller set body is composed of the five rollers which are arranged around the periphery of the conveying belt, and the conveying belt is coiled into the shape of a round pipe. The shells of the carrier rollers are internally provided with center holes, the shafts penetrate into the center holes, and the two ends of the shafts are located outside the shells. The two ends in each shell are provided with bearings which support and fix the shafts and the shells. The carrier roller (11), the carrier roller (12) and the carrier roller (13) in the carrier roller set body are common cylindrical carrier rollers, and the carrier roller (14) and the carrier roller (15) are waist-drum-shaped carrier rollers ...

PROBE OF DETECTOR

A probe of a detector includes a shield, an anode member, and a cathode member. The shield includes a top wall and a plurality of sidewalls extending down from the sides of the top wall. A first through hole and a second through hole are defined in the top wall. The anode member includes a first mounting portion, a first pin, and a first connecting portion connected between the first mounting portion and the first pin. The cathode member includes a second mounting portion, a second pin, and a second connecting portion connected between the second mounting portion and the second pin. The first and second mounting portions are respectively rotating within the first and second through holes to adjust corresponding ends of the first and second pins to come in contact with the electronic component.

Composition with free radical scavenging effect and application thereof

The invention relates to the technical field of cosmetics, and discloses a composition with an effect of scavenging free radicals and application of the composition. The composition with the effect of scavenging free radicals, provided by the invention, is prepared from the following components in parts by mass: 1 to 3 parts of 3-o-ethyl ascorbic acid; 2 to 4 parts of ascorbyl tetraisopalmitate; 0.3 to 0.7 part of tocopherol; and 0.1 to 0.3 part of acetylcysteine. The composition is obtained by mixing the 3-o-ethyl ascorbic acid, the ascorbyl tetraisopalmitate, the tocopherol and the acetylcysteine according to a certain mass part ratio, and the composition has a synergistic effect in the aspect of scavenging free radicals, and can achieve better skin oxidation resistance and anti-aging effects at a lower application amount.

Method for predicating biomass of submerged plant by establishing growth simulation model

A method for predicating biomass of a submerged plant by establishing a growth simulation model comprises the following steps that firstly, a relevant dynamic mass conservation equation is obtained according to the relation among algae, organic carbon, phosphorus, nitrogen and dissolved oxygen in a lake; secondly, a relevant dynamic mass conservation equation is obtained according to the relation among the stem and root of the submerged plant and aerophyte growing around the stem; thirdly, coupling is carried out on a water quality module and a submerged plant module, and the functions of the submerged plant are added to the relevant dynamic mass conservation equations; fourthly, each model time step differential equation is solved, the biomass of the submerged plant is finally obtained, and the biomass predicating of the submerged plant is finished.

Sequence for bladder cancer diagnosis and application method and use thereof

Disclosed is a sequence for bladder cancer diagnosis and evaluation and the application method and use thereof. In particular, the invention provides probe sets, primer sets, compositions and microarrays for detecting at least one mutation in gene selected from UTX, CREBBP, EP300, ARID1A, CHD6, MLL, NC0R1 and MLL3. The invention also provides a method for bladder cancer diagnosis by detecting changes in the abovementioned genes, and the application of the probe sets and primer sets in preparing a kit and microarray for detecting bladder cancer.

Biomass furnace

The invention discloses a biomass furnace which comprises a furnace panel, a furnace body and a hearth arranged inside the furnace body, wherein the upper end of the furnace body is covered with the furnace panel, a combustion chamber is arranged at the bottom end of the hearth, a fire grate is arranged on the bottom of the combustion chamber, an ash bucket is arranged below the fire grate, a circulating water pipe and an air inlet pipe are arranged on the outer wall of the hearth and are wound around the outer wall of the hearth in the circumferential direction in parallel in a spiral mode, the two ends of the circulating water pipe and the two ends of the air inlet pipe are arranged at the upper end and the lower end of the lateral wall of the furnace body respectively, multiple small ventilation holes are evenly formed in the lateral wall of the air inlet pipe in the circumferential direction, through holes are formed in positions, corresponding to the small ventilation holes, of the ...

Double-unit tablet containing acid-labile medicaments

The invention describes an oral solid preparation of labile active ingredient of acid which comprises two laminas that are disintegrated according to priority, wherein the lamina A comprises a highly effective disintegrant and a basifier, so the disintegrating speed is quicker, the lamina A can quickly release the basifier in gastric juice, and in virtue of which the pH value of the gastric juice is raised; the labile active ingredient of acid of the lamina B is dispersed in the material of a carrier with retarding action to ensure the release of the active ingredient a certain time of lag. A double-unit tablet provided by the invention has simple preparation technique and good stability in storage, which is especially applicable to drugs of labile acid such as proton pump inhibitor.

High-selectivity alkaline glass etching solution and etching method thereof

The invention relates to a high-selectivity alkaline glass etching solution and an etching method thereof. The etching liquid formed by the inorganic alkali, the organic alkali, the amine compound, the alcohol compound, the nonionic fluorocarbon surfactant and the like is used for selectively etching the glass on the metal layer, so that the effects of environment protection and high-selectivity glass thinning are achieved, and the conductive metal layer is not damaged as far as possible. By adjusting the components, the content ratio and the etching method in the etching solution, the effects of low glass surface roughness, uniform glass etching and good selection ratio of the glass etching rate to the metal etching rate are realized.

Method for preparing high-performance melamine foam

The present disclosure relates to a method for preparing high-performance melamine foam, comprising the following steps: preparing a primary polymer of waterborne melamine formaldehyde resin; uniformly mixing the primary polymer of the waterborne melamine formaldehyde resin, the polar solvent, the surfactant and the additive to obtain a mixture A; uniformly mixing the mixture A with the solid methylol melamine to obtain a mixture B; uniformly mixing the mixture B with the foaming agent to obtain a mixture C; uniformly mixing the mixture C with the curing agent to obtain a mixture D; and carrying out microwave radiation, foaming, curing, drying and quenching on the mixture D in a microwave foaming device to obtain the high-density melamine foam. The melamine foam described in the present invention has high density and high strength performance.

Device for testing transient-state pressure release combustion instability characteristic of base bleed propellant

The invention discloses a device for testing the transient-state pressure release combustion instability characteristic of a base bleed propellant. According to the device, a transparent observation window, an ignition combustion chamber, a temperature measuring component, a pressure release component and a pressure sensor are mounted on a main combustion chamber; the ignition combustion chamber is used for igniting an explosive bar to be tested; a micro thermoelectric couple is hermetically mounted on the temperature measuring component; when the pressure inside the main combustion chamber reaches the pressure resistance limit of the pressure release component, transient pressure release is achieved; when the pressure sensor is used for measuring the pressure change inside the main combustion chamber in the combustion process, a high-speed camera is used for shooting the combustion situation of the explosive bar to be tested through an optical path converter and the transparent observation ...

Discussion group creation/distribution method, device and instant communication system

The invention relates to the field of instant communications technology, which specifically discloses a method for creating/dispatching a first discussion group and a related device, an instant communications system; wherein, the method for creating the discussion group includes the following steps: a trigger message requesting creation of the first discussion group is received; a preset creation interface of the discussion group is displayed, and a message of the first discussion group input by a first user is obtained through the creation interface of the discussion group; the first discussion group corresponding to the message of the first discussion group is displayed on a group communication interface. Utilizing the technical proposal provided by the invention, users can search out the information requested more rapidly, thus bringing more user experience.

Tunnel broken surrounding rock grouting repair equipment

The invention relates to the technical field of surrounding rock grouting repair, in particular to tunnel broken surrounding rock grouting repair equipment which comprises a U-shaped table, a lead screw is rotatably arranged between the middle positions of the side walls of the two ends of the U-shaped table, a sliding groove is formed in the upper end face of the bottom of the U-shaped table, the lead screw is in threaded connection with a T-shaped table, and a platform is slidably arranged on the upper surface of the T-shaped table; left and right symmetrical baffles are fixedly arranged at the upper end of the T-shaped table, and shifting rods are rotationally arranged on the opposite surfaces of the baffles; symmetrical stop levers are fixedly arranged on the left and right end surfaces of the platform; the shift levers shift the stop levers to move when rotating; a lifting supporting table is fixedly arranged on the upper end face of the platform. A hydraulic cylinder is fixedly arranged ...

INTERNAL VIDEO MONITORING SYSTEM AND METHOD FOR GIS DEVICE

Gas purifying apparatus for pyrolyzed biomass fuel

A disclosed gas purifying apparatus for pyrolyzed biomass fuel comprises a purification box, two separation plates are arranged in the purification box, and the internal space of the purification box is divided into a first chamber, a second chamber and a third chamber from left to right by the two separation plates; the top of the first chamber is provided with an atomization rotation nozzle; the second chamber is inside provided with a breather pipe, the other end port of the breather pipe stretches into a base solution filling the bottom of the second chamber and has a distance of 7-18 cm to the solution level; and the top of the third chamber is provided with a rotation atomization nozzle. By employing the three chambers, an acidic gas in a mixed gas can be successively purified from left to right, so that the gas purifying apparatus gives play to multiple purification effect, and is capable of relatively thoroughly completely purifying the acidic gas.

Novel magnetic separation sewage treatment unit

The invention discloses a novel magnetic separation sewage treatment unit, which comprises a tank, wherein a water inlet and a water outlet are arranged at the two ends of the tank; the tank is formed by jointing tank channels; the tank is divided into a regulating and stirring tank, a partition board flocculation tank, a magnetic separation settling tank and a smoothing settling tank, wherein the regulating and stirring tank is provided with a medicament feeding system and a stirrer; an inclined plate is arranged on the bottom of the partition board flocculation tank; a funnel is arranged below the magnetic separation settling tank; and a round magnetic cylinder and a rectangular magnetic cylinder are arranged above the funnel. The device can solve the problems of high investment and lowefficiency of a single water treatment technique of sewage treatment plants, can remove impurities from sewage quickly and ensures stable effluent and simple hydraulic conditions.

Multipurpose rotation torque loading device and method

The invention discloses a multipurpose rotation torque loading device comprising an electromagnetic eddy current brake, a water inlet pipeline and a water return pipeline are connected between the electromagnetic eddy current brake and a cooling device, a torque sensor is arranged on a transmission shaft of the electromagnetic eddy brake, and an output shaft end of the electromagnetic eddy brake is provided with a connecting flange or a chain wheel for connection. The invention further discloses a rotation torque loading method in three embodiments. A test product is used as a driving device, the electromagnetic eddy brake is used as the loading device, the test product drives to rotate, an exciting coil in the electromagnetic eddy current brake generates loading torque, and the rotation torque loading requirement of the test product is met; the output shaft end of the electromagnetic eddy current brake is provided with the chain wheel and the connecting flange for connection, so that corresponding ...

Device and method for vaporizing sulfur trioxide

The invention provides a sulfur trioxide vaporization device and method.The device comprises an evaporator, the evaporator is provided with an evaporator body and an electric heating assembly, the electric heating assembly is composed of a top cover and an electric heating pipe, and the top cover is matched with the top of the evaporator body to form a closed cavity; a plurality of grooves for accommodating electric heating tubes are distributed on the top cover, the grooves extend downwards to the middle lower part of the cavity, and the electric heating tubes are arranged in the grooves and are not in direct contact with the cavity; corrosion-resistant lining layers are arranged on the portions, making contact with sulfur trioxide, in the evaporator. According to the invention, an electric heating mode is combined with a teflon lining device, so that full lining of an electronic-grade sulfuric acid production device is realized for the first time, potential safety hazards caused by corrosion ...

Internal video monitoring system and method for GIS device

Provided are a gas insulated switchgear (GIS) internal video monitoring system and a GIS internal video monitoring method. The GIS internal video monitoring system includes a GIS video sensor installed on a GIS enclosure and configured to acquire an open/close state of a GIS internal conductor in a real time manner, an intelligent power source module, a video server, and a video monitoring background system configured to control the intelligent power source module to supply power to the video sensor, where the GIS video sensor is connected with the video monitoring background system through the video server.

Clamp bending tool and clamp arc forming die

The invention provides a clamp bending tool and a clamp arc forming die. The clamp arc forming die comprises a third upper pressing die and a third lower pressing die. The third upper pressing die comprises a plane pressing part for flat pressing the tail portion of a clamp and an arc pressing part for keeping the bent part of the neck portion of the clamp. A supporting plane for being attached to the head portion of the clamp is arranged on the third lower pressing die. Through the arc pressing part and the plane pressing part, on the basis that the bending radius and shape of the neck portion of the clamp are ensured, the flatness of the tail portion of the clamp and the parallelism of the head portion of the clamp can be ensured, the machining accuracy is high, the quality of the machined clamp is high, the machining efficiency is improved, and the production cost is reduced.

Biomass fuel pyrolysis device

The invention discloses a biomass fuel pyrolysis device which comprises a furnace body, a fire grate, a feed hopper and a stirring device, wherein the furnace body is formed by connection of an inner cylinder and an outer cylinder arranged outside the inner cylinder in a sleeved mode, a furnace cover is arranged at the position of an upper port of the inner cylinder, the feed hopper and an air inlet communicated with inner cylinder are arranged on the furnace cover, multiple ventilation holes are evenly formed in the lower portion of the lateral wall of the inner cylinder in the circumferential direction, a discharge port is formed in the bottom of the inner cylinder, the fire grate is arranged between the inner cylinder and the discharge port, a circulating water pipe is arranged on the inner lateral wall of the outer cylinder in the circumferential direction from bottom to top in a spiral mode, a water inlet and a water outlet of the circulating water pipe are located at the lower end ...

Power consumption estimation method and device of radio frequency device, computer equipment and storage medium

The invention relates to the technical field of radio frequency, and provides a power consumption estimation method and device of a radio frequency device, computer equipment and a storage medium. The power consumption of the radio frequency device does not need to be actually measured, and the design and development efficiency of the radio frequency system can be improved. The method comprises the following steps: determining target output power output by a radio frequency device in a first radio frequency system, and obtaining a corresponding relation between the output power and power consumption of the radio frequency device; the corresponding relation is determined according to multiple groups of test values of the radio frequency device for the output power and the power consumption in the second radio frequency system; and estimating the power consumption of the radio frequency device in the first radio frequency system based on the corresponding relation and the target output power ...

Purification method for efficiently and safely removing anions in hydrogen peroxide

A purification method for efficiently and safely removing anions in hydrogen peroxide comprises the following steps that normal-temperature industrial-grade hydrogen peroxide is cooled to 0-10 DEG C through a cooling device and then sequentially passes through an anion exchange resin column and a mixed ion exchange resin column in a lower-in and upper-out mode, the flow speed is controlled to be 5-15 BV/h, the anions and part of cations in the hydrogen peroxide are removed, and the hydrogen peroxide is obtained. Purified hydrogen peroxide is obtained. Industrial-grade hydrogen peroxide sequentially passes through anion exchange resin columns and mixed ion exchange resin columns to remove anions, and anion exchange resins in the two ion exchange resin columns belong to different models. Meanwhile, by adjusting the filling proportion of anion and cation exchange resin in the mixed ion exchange resin column, not only can anions in the hydrogen peroxide be effectively removed, but also the ...

Permanent magnetic separation purification device for lake eutrophication alga water

The invention relates to a permanent magnetic separation purification device for lake eutrophication alga water. A magnetic flocculant is used for coagulating and absorbing substances of blue algae and the like in the lake eutrophication water body to form a magnetic flocculating constituent which passes through the permanent magnetic separation purification device, is quickly absorbed by a magnetic disk in the water, taken out of the water surface along with the continuous rotation of the magnetic disk, and is removed by an alga scraping device above the water surface; and the flocculating constituent of the blue algae is delivered into an alga storing chamber by creepage of an auger for pressing filtration to realize alga/water separation. The invention can quickly remove the separated substance to achieve the purpose of purifying the lake eutrophication water body without residues left.

High-temperature mixed waste gas treatment device for agricultural production

The invention discloses a high-temperature mixed waste gas treatment device for agricultural production. The device comprises a cooling device, a purification device and an oil-water separating device, wherein the cooling device comprises a cooling tank; the cooling tank is provided with a water inlet end opening and a water outlet end opening; the cooling tank is internally provided with a spiral vent pipe; the air inlet end of the vent pipe extends outside the interior of the cooling tank, and then air outlet end of the vent pipe is connected with an air inlet of the purification device and a liquid inlet of the oil-water separating device respectively by a three-way pipe; the purification device comprises a tank; the top in the tank is provided with a spray head; the oil-water separating device comprises a transparent separating tank; the bottom of the separating tank is provided with a drain pipe which is provided with a control valve; the side wall of the separating tank is provided ...

Process route generation method and device

The invention discloses a process route generation method and device, and the method comprises the steps: obtaining the target structure feature data of a part, and enabling the target structure feature data to be used for indicating the target structure feature of the part; searching at least two target processing features corresponding to the target structure feature from a processing feature library according to the target structure feature data; searching target processing procedures corresponding to the target processing features from a process rule base, and determining a procedure sequence between the target processing procedures; and generating a process route of the part according to the process sequence between the target machining processes. Therefore, by implementing the embodiment of the invention, the accuracy of the process route can be improved, and the accuracy of part processing is further improved.

Hearth device for biomass furnace

The invention discloses a hearth device for a biomass furnace. The hearth device for the biomass furnace comprises a furnace body, an induced draft fan and a combustion chamber which is arranged at the bottom of the hearth body, wherein a cover plate is arranged at an upper port of the hearth body, a feed hopper and a smoke outlet are arranged on the cover plate, the smoke outlet is connected with an air inlet of the induced draft fan through a pipe, an air outlet of the induced draft fan is connected with an air inlet formed in a side wall close to the upper port of the hearth body through a pipe, a screen plate is arranged on the side wall of an inner chamber of the hearth body, one end of the screen plate is elastically hinged with the hearth body and the screen plate is arranged above the air inlet. The hearth device for the biomass furnace has the advantages that the high-temperature smoke produced after fuel is combusted can be enabled to enter the hearth again to preheat the fuel ...

Be applied to desilting grabbing device in ecological river course

The utility model discloses a be applied to desilting grabbing device in ecological river course, including hull and desilting grab bucket, the desilting grab bucket is including left desilting grab bucket and right desilting grab bucket, right desilting grab bucket is connected in left side desilting grab bucket, left side desilting grab bucket is connected with left dead lever, the other end of left side dead lever is connected with desilting grab bucket support, right side desilting grab bucket is connected with right dead lever, desilting grab bucket support is connected to the other end of right side dead lever, the lower extreme of desilting grab bucket support is equipped with grasping cylinder, grasping cylinder is connected with and snatchs the piston rod, the other end that snatchs the piston rod is connected with the desilting sliding seat, left desilting grab bucket and right desilting grab bucket are connected to the desilting sliding seat, the upper end of desilting grab bucket ...

Method for treating algal bloom by using modified attapulgite as flocculant

The invention discloses a method for treating algal bloom by using modified attapulgite as flocculant, comprising the following steps: dipping the attapulgite powder into hydrochloric acid for 23-25h according to the ratio of solid to liquid being 1-3:2-4, drying, pulverizing into powder to obtain flocculant; adding the flocculant into algae water, stirring, standing, and then removing algae floc by a filtering or spooning method. The invention can effectively adsorb flocculating algae, thereby being convenient to remove algae floc by the filtering or spooning method, and having obvious effect on removing nitrogen and phosphorus in water body; the method can treat both the principal and secondary aspects, fundamentally removes danger caused by algal bloom storm, and has low cost, thereby having great application value and market potential.

Beam-type burner

The invention relates to a beam-type burner. A gas pipe, an air pipe and an ever-burning fire tube are arranged in a square beam, the air pipe is located on the outer side of the gas pipe, a gas and air mixing structure is formed between the inner wall of the air pipe and an air branch port and a gas branch port, and the ever-burning fire tube is arranged on the outer side of a whirlwind flaming port. Cooling media enters the burner from the inlet of a cooling pipe and flows out from the outlet of the cooling pipe after passing a cooling cavity. The bottom of the beam is connected with a short tube to from the whirlwind flaming port, and the front end of the air branch port extends out of the beam. The gas branch port is located in the air branch port to form the single burner. The burner is of a beam-type structure and can be directly arranged on the lower portion of the inside of an alloy furnace, the occupied space is small, and burning efficiency is improved. The beam-type burner has ...

Method for detecting content of acetic acid in electronic-grade etching solution

The invention relates to a method for detecting the content of acetic acid in an electronic-grade etching solution, in particular to a method for detecting the content of acetic acid in the electronic-grade etching solution by using a high performance liquid chromatography. The method comprises the following steps: firstly, preparing acetic acid standard solutions with different concentration gradients, then testing the peak appearance time of acetic acid and the peak areas of the corresponding acetic acid standard solutions with different concentrations, and drawing a standard curve to reflect the relationship between the peak areas and the acetic acid content; and then weighing a certain amount of to-be-detected etching liquid sample, adding a certain proportion of water, uniformly mixing, testing on a machine, and calculating the concentration of acetic acid in the to-be-detected sample by using a peak area value test according to the standard curve. According to the method, the acetic ...

Radish sprouting vegetable and cultivation method and beverage thereof

The embodiment of the invention provides a radish sprouting vegetable, a cultivation method thereof and a beverage. The cultivation method of the radish sprouting vegetable comprises the following steps: providing radish seeds; accelerating germination of the radish seeds to obtain germinated seeds; performing illumination culture treatment on the germinated seeds by adopting simulated light to obtain radish sprouting vegetables; wherein the simulated light comprises red light, blue light and white light, and the illumination ratio of the red light to the blue light to the white light is 1: (2-3): (8-12). According to the cultivation method, enrichment of nutrient substances such as sulforaphene precursor substances in the radish sprouting vegetables is effectively promoted, and the content of sulforaphene generated after the radish sprouting vegetables are crushed is increased.

Composite type magnetic trap flocculant and method for removing algaltufa by using flocculant

The invention relates to a composite type magnetic trap flocculant which is obtained by mixing modified iron-containing slag with organic polymer PDMDAAC solution having bridging absorption function.The invention also provides a method for clearing algaltufa by using flocculant, in which the composite type magnetic trap flocculant is thrown into an algae-containing solution, a micronano mesh structure formed by PDMDAAC and modified slag strong self-flocculation performance are utilized to combine with algae cells, nitrogen, phosphorus and other colloidal particles in water to form floccules,and then external magnetic field rotation is utilized to remove the floccules out of water. The method is simple in preparation technique and convenient in operation. The invention can be used for fast absorbing and inmeshing harmful substances in water, can improve water transparency, maintain water quality to be stable and balance acid and base. The invention can fast gather algae cells under the action ...

Cleaning solution and cleaning method for wafer after laser ablation

The invention belongs to the field of electronic chemicals, and particularly relates to a cleaning solution and a cleaning method for a wafer after laser ablation. The cleaning solution is mainly used for cleaning organic matter residues and particles after wafer laser ablation and reducing corrosion to metal on the surface of a wafer, and comprises an organic solvent, a metal corrosion inhibitor, a surfactant, a pH regulator and high-purity water. The organic solvent is used for dissolving organic matter residues; the metal corrosion inhibitor can prevent the cleaning liquid from corroding the metal on the surface of the wafer; the surfactant is used for improving the wettability of the cleaning solution and enabling particles to be separated from the surface of the wafer and enter the solution; and the pH regulator maintains the alkaline environment of the cleaning solution, and the cleaning effect on the wafer surface fused substance is enhanced.

Detection device and method for intelligent high-voltage switch control system

The invention discloses a detection device and method for an intelligent high-voltage switch control system. The detection device comprises a main control board, an electrical simulation circuit, a man-machine interface and the intelligent high-voltage switch control system. The main control board sends a GOOSE order or a debugging order to the intelligent high-voltage switch control system, and the intelligent high-voltage switch control system detects whether the communication connection of the intelligent high-voltage switch control system is normal or not and detects whether the intelligent high-voltage switch control system responds to the GOOSE service requirement or not. The electrical simulation circuit is used for receiving action signals of the intelligent high-voltage switch control system and simulating actions of a true breaker and a true disconnecting link so as to detect whether an electrical control circuit of the intelligent high-voltage switch control system works normally ...

Emphysema quantitative analysis method based on CT image random region

The invention discloses an emphysema quantitative analysis method based on a CT image random region and application, and belongs to the field of medical clinical medicine. According to the emphysema quantitative detection method based on random region selection, lung parenchyma segmentation is mainly achieved, the image feature value of emphysema can be accurately and quantitatively calculated, and objective quantitative analysis of emphysema is achieved. Meanwhile, the left lung, the right lung, the upper part, the middle part and the lower part can be distinguished by the obtained quantitative data, so that the focus position can be accurately positioned, a doctor can be assisted to formulate a more effective emphysema diagnosis and treatment scheme, and the method has great clinical significance.

Interior video monitoring system and method of GIS (Geographic Information System) device

The invention provides an interior video monitoring system and method of a GIS (Geographic Information System) device. The interior video monitoring system is characterized by comprising a video sensor, a video server, a smart power supply system and a video monitoring background system. The video sensor is installed on a GIS casing and used for collecting the opening and closing stages of interior conductors in a GIS in real time, converting monitored data to network digital signals and sending the digital signals to a far-end video monitoring system for unified management. The interior video monitoring system and method can achieve video collection of conductors in the GIS, convert the video signals to the network signals and send the network signals to the video monitoring background system, and achieve remote monitoring and centralized management of the opening and closing states of GIS disconnecting switch contacts, grounding switch contacts and fast grounding switch contacts.

Curtain wall beam post structure

The utility model discloses a curtain wall beam post structure, including a set of curtain wall columns who is rectangular array form, vertical setting to and the 2nd curtain wall columns who sets upin a set of curtain wall columns both sides, be equipped with a set of rectangle stiffening beam on a set of curtain wall columns, the level setting in proper order of a set of rectangle stiffening beam, it forms superimposed box body frame with a set of curtain wall columns, be equipped with a set of curtain wall beam between the 2nd curtain wall columns and the box body frame. Its light in weight is convenient for build, structural design is ingenious, and bearing capacity and stability are good.

Magnetic-capturing removing method of algae substances in eutrophication water body and device thereof

The invention relates to a magnetic-capturing removing method of algae substances in an eutrophication water body and a device thereof. The method comprises the following steps of: putting a magnetic flocculating agent into algae water to mix and flocculate the magnetic flocculating agent and the algae water to form a flocculation body in a mode of a micro-nano network; and removing the flocculation body from the water body through the separation of the algae and the water to achieve the aims of removing algae, nitrogen and phosphorus. In the invention, the device comprises an automatic putting system, a magnetic-capturing and an algae/water separating system, wherein each system is arranged on a mobile platform, the mobile platform is used as a carrier to provide power, and the device can freely run in lakes. By utilizing the invention, enmeshes harmful substances in the water can be rapidly absorbed, and algae cells can be rapidly enriched under the action of an external magnetic field ...

Hydroxylamine-free water-based cleaning agent

The invention provides a preparation method and application of a hydroxylamine-free water-based cleaning agent. The hydroxylamine-free water-based cleaning agent comprises the following components: alcohol amine, 1-hydroxypyrrolidine and derivatives thereof, catechol, dimethyl sulfoxide and the balance of water. The water-based cleaning agent disclosed by the invention does not contain hydroxylamine, so that the problems of single raw material source, supply risk and product use safety risk of a hydroxylamine cleaning agent are solved. Meanwhile, the metal aluminum, titanium and titanium nitride are basically not corroded. And the cleaning process uses a large temperature window, which is beneficial to the stability of product production. The cleaning agent can effectively remove photoresist residues, inorganic matter residues, organic polymers and metal-organic polymers after wafer etching, and efficient cleaning of wafers of metal pads, metal wires and through hole structures is achieved ...

Probe of detector for testing pins of electronic component

A probe of a detector includes a shield, an anode member, and a cathode member. The shield includes a top wall and a plurality of sidewalls extending down from the sides of the top wall. A first through hole and a second through hole are defined in the top wall. The anode member includes a first mounting portion, a first pin, and a first connecting portion connected between the first mounting portion and the first pin. The cathode member includes a second mounting portion, a second pin, and a second connecting portion connected between the second mounting portion and the second pin. The first and second mounting portions are respectively rotating within the first and second through holes to adjust corresponding ends of the first and second pins to come in contact with the electronic component.

Silicon-based nano laser manufacturing method

The invention relates to the technical field of light-emitting light sources in optical communication technology, in particular to a method for manufacturing a low-threshold-value silicon-based nano laser by adopting erbium-ytterbium, erbium-yttrium or erbium, ytterbium, yttrium silicate inorganic compound nanowire material. The method includes preparing raw materials; placing the raw materials in a calcining furnace, and feeding gas into the calcining furnace; calcining and growing the nanowire; preparing a nanowire alcohol solution, and acquiring the silicon-based nano laser. The monocrystal erbium, ytterbium, yttrium silicate inorganic compound nanowire is adopted as a waveguide material to manufacture the silicon-based nano laser. The silicon-based nano laser manufactured by the method is high in waveguide gain and low in pumping threshold value.

Melamine/formaldehyde foam and preparation method thereof

The invention discloses melamine/formaldehyde foam. The melamine/formaldehyde foam comprises the following raw materials in parts by weight: a melamine/formaldehyde precondensate, a hardener, a surfactant mixture consisting of an anionic surfactant and a non-ionic surfactant, salt of an inorganic acid or organic carboxylic acid, a foaming agent, dye or a whitening agent, a light stabilizer or a heat stabilizer, and water. The invention further discloses a preparation method for the melamine/formaldehyde foam. The preparation method comprises the following steps: preparing an aqueous mixture formed by mixing the raw materials; heating and foaming the aqueous mixture to form a semi-finished melamine/formaldehyde foam product; solidifying the semi-finished melamine/formaldehyde foam product; drying the semi-finished melamine/formaldehyde foam product; annealing and drying the semi-finished melamine/formaldehyde foam product with hot air to obtain the finished melamine/formaldehyde foam product ...

Thermal siphon screw refrigeration compression system

The utility model discloses a thermal siphon screw refrigeration compression system, including the cold ware of ammonia, evaporative condenser, thermal siphon cistern and thermal siphon oil cooler, the gas ammonia export of the cold ware of ammonia and evaporative condenser's gas ammonia entry linkage, evaporative condenser's the liquid ammonia export and the liquid ammonia entry linkage of thermal siphon cistern, the liquid ammonia export of thermal siphon cistern is connected with thermal siphon oil cooler's feed pipe, thermal siphon oil cooler's the muffler and the gas -liquid mixture ammonia entry linkage of thermal siphon cistern, the gas ammonia export of thermal siphon cistern and evaporative condenser's gas ammonia entry linkage. The utility model discloses thermal siphon screw refrigeration compression system compact structure, the refrigerating output is big, and cooling efficiency is high, therefore reducible heat transfer area, less area is required to do not need the supporting ...

Stainless steel etching solution

The invention discloses a stainless steel etching solution. The etching solution comprises an oxidizing agent, inorganic acid, organic acid and a chelating agent. The stainless steel etching solution comprises the following components in percentage by mass: 20-30% of ferric trichloride, 15-20% of 37% hydrochloric acid, 10-25% of an oxidizing agent, 10-15% of a chelating agent and the balance of deionized water. The stainless steel etching solution is stable in etching rate, smooth in etched surface and long in service life.

Financial accounting system

The invention provides a financial accounting bookkeeping system, and relates to the field of data recording systems. A financial accounting system comprises a financial accounting system, the financial accounting system is connected with a user login system and an administrator login system, the user login system and the administrator login system are connected with a data acquisition and processing system, and the data acquisition and processing system is connected with a data generation and integration system. The data generation and integration system is connected with an information encryption system, and the information encryption system is connected with an information monitoring system. The financial bookkeeping system, the user login system, the administrator login system, the data acquisition and processing system, the data generation and integration system, the information encryption system and the information monitoring system are applied, so that illegal operation of a person ...

Comprehensive utilization device for decomposition and transformation of stalks

The invention discloses a comprehensive utilization device for decomposition and transformation of stalks. The comprehensive utilization device comprises a stalk shredder, a cracking furnace, a cyclone separator, a condenser, a gas purification device and a fractionating tower, wherein the stalk shredder is connected to an inlet end of the cracking furnace by delivery pipelines, the outlet end of the cracking furnace is connected to the inlet end of the cyclone separator through pipelines, the bottom of the cracking furnace is provided with a charcoal outlet, the outlet end of the cyclone separator is connected with the inlet end of the condenser through pipelines, the outlet end of the condenser is connected to the gas inlet of the gas purification device and the gas outlet of purification device is communicated with the inlet end of the fractionating tower. The stalks can be processed and converted into biomass gas, charcoal, tar and other byproducts and completely collected and utilized ...

Production method of packaging barrel for ultra-pure chemicals

A production method of a packaging barrel for ultra-pure chemicals comprises the steps that AB type high-density polyethylene of two types enters two different raw material storage tanks through an automatic feeding machine, the outer layer material A type high-density polyethylene enters a mixer, color master batches are added, and then the outer layer material A type high-density polyethylene and the lining material B type high-density polyethylene enter an extrusion system; a cylindrical blank is formed through high-temperature extrusion in a material extrusion system, the blank enters a blow molding machine mold, high-purity air is introduced for blow molding, cooling water is introduced into an annular gap in the outer side of the mold after blow molding, cooling is conducted, a primary product is taken out, burrs are removed, then cooling is further conducted, and a finished product is obtained. The packaging barrel disclosed by the invention not only meets the requirements of high ...

Copper etching solution and preparation method thereof

According to the copper etching solution and the preparation method thereof, the copper etching solution is composed of the copper salt, the inorganic acid, the organic acid, the surfactant, the organic alkali and the deionized water, and in the process of etching copper and copper alloy, the etching solution is stable in etching rate, even in etching and small in corrosion to ITO, stainless steel and other materials. Anions in inorganic acid and organic acid in the etching solution can increase the solubility and solubility of a copper complex in the solution, and the etching life of the etching solution can be prolonged; the organic alkali in the etching solution can be complexed with redundant copper ions in the etching solution, the etching rate is stabilized, the pH of the etching solution is adjusted, and corrosion of the etching solution to other metals is reduced.

Etching solution for selectively etching AlCu layer relative to laminated metal and preparation method thereof

The invention belongs to the field of integrated circuit electronic chemicals, and particularly relates to etching liquid for selectively etching an AlCu layer relative to laminated metal and a preparation method of the etching liquid. The etching solution is mainly used for selectively etching an AlCu alloy layer relative to laminated metal (composed of a photoresist, an AlCu alloy layer, a W layer, a TiN layer and a Ti layer from top to bottom), and comprises an oxidizing agent, a corrosive agent, an additive, a complexing agent, an etchant homogenizer and ultrapure water. According to the etching solution for selectively etching the AlCu layer relative to the laminated metal and the preparation method of the etching solution, the AlCu layer in the laminated metal can be effectively controlled to be etched while other metal layers are not etched by using the etching solution according to the method, the etching precision is high, the etching appearance is good, and the electrochemical ...

Adjustable circle forming device for tubular belt conveyor

The invention relates to an adjustable circle forming device for a tubular belt conveyor. The adjustable circle forming device comprises a fixing support, an installation plate, carrier roller assemblies and pressing roller assemblies. The fixing support is composed of two pieces of box iron which are parallel in the vertical direction and symmetrical and is welded to the installation plate to play a role in fixation. A large circular hole for adhesive tape to penetrate through is formed in the center of the installation plate. The carrier roller assemblies are installed on the left side, the right side and the lower side, close to the large circular hole, of the front face of the installation plate. The pressing roller assemblies are installed on the left side and the right side of the back face of the installation plate. A circle defined by the carrier roller assemblies and the pressing roller assemblies is used for forming the adhesive tape into circles. The adjustable circle forming ...

Integrated monitoring device of switchgear humiture

The utility model provides a switchgear's the integrated monitoring device of humiture, the intelligent humiture monitoring device that the all mistakes of this department were installed in the intelligent control cabinet gathers the temperature/humidity information that every cabinet was personally experienced sth. Part of the body, and temperature/humidity information sends humiture backstage monitoring system through optic fibre. The utility model discloses the realization is to the real -time on -line monitoring of all intelligent control cabinet humitures, thus prevent intensification, cooling and dehumidification equipment trouble in the intelligent control cabinet influence the intelligent control cabinet in smart machine normal operating lead to the occurence of failure.

Phosphate-based etching solution and preparation method thereof

The invention provides a phosphate-based etching solution and a preparation method thereof. The phosphate-based etching solution comprises the following main components: phosphoric acid accounting for 50-88% of the total weight of the etching solution, an additive accounting for 0.005-2% of the total weight of the etching solution, and the balance of water. The components and types of the novel additive are used. The combination of Si < 2 + > and the wafer surface in the etching process of the etching liquid is obviously inhibited, the generation of a SiO2 regeneration layer is inhibited, and the service life of the phosphate-based etching liquid is prolonged.

Ion exchange-based low-concentration PVB wastewater treatment equipment

The invention discloses ion exchange-based low-concentration PVB wastewater treatment equipment, which is used for processing wastewater in an impounding reservoir and discharging the processed water into a dilute water recycling pool. The low-concentration PVB wastewater treatment equipment comprises a sand filter tank, a cation bed, a carbon remover, an anion bed, a macroporous resin column and an activated carbon filter, wherein a water inlet of the sand filter tank is the water inlet of the low-concentration PVB wastewater treatment equipment; a water outlet of the sand filter tank is orderly connected with the cation bed, the carbon remover, the anion bed, the macroporous resin column and the activated carbon filter; and the water outlet of the activated carbon filter is the water outlet of the low-concentration PVC wastewater treatment equipment. Sand filtering, anion and cation exchange and macroporous resin adsorption are combined together, efficient treatment of the low-concentration ...

Selective etching solution for 3D NAND structural sheet

The invention provides a selective etching solution for a 3D NAND structural sheet. The etching solution comprises phosphoric acid, a silane additive 1, a silane additive 2 and the balance of water. The etching liquid has etching selectivity on a silicon oxide film and a silicon nitride film, the silicon nitride film can be selectively removed, the service life of the etching liquid is prolonged, and the etching liquid can adapt to etching of a laminated structure.

Production method of granules for making imitation yuhua-stone ceramic brick

The present invention discloses a method for producing imitation Yuhan stone granules for making ceramic tile, and is characterized by that it adopts a colour paste which is approximate or identical to forming powder material in chameical composition, the colour paste can be applied to the paste-holding container one layer-by-one layer, and the application of paste and drying can be alternativelyand cyclically implemented so as to form a colour paste mud cake with a certain number of layers and a certain colour spaced order, finally the colour paste mud cake can be broken and seived so as toobtain the granular material for making ceramic tile blank. The granule layer surface possesses clear grain and rich colours really true to life and similar to natural Yuhua stone.

Electrolysis wastewater treatment device, PVB (Polyvinyl Butyral) production wastewater treatment device and PVB production wastewater treatment process

The invention discloses an electrolysis wastewater treatment device. The electrolysis wastewater treatment device comprises an electrolytic tank, wherein a wastewater water inlet pipe is arranged on the lower part of the electrolytic tank; an iron-carbon internal electrolysis region and a polar plate external electrolysis region are sequentially arranged in the middle of the electrolytic tank from bottom to top; an overflowing opening is formed in the upper part of the electrolytic tank. The invention further discloses a PVB (Polyvinyl Butyral) production wastewater treatment device. The PVB production wastewater treatment device comprises a wastewater tank, the electrolysis wastewater treatment device, a medicine feeding tank, a first inclined plate sedimentation basin, a first biological contact oxidization tank, a second biological contact oxidization tank, a second inclined plate sedimentation basin and a recycling water tank which are connected in sequence. The invention further discloses ...

Buffer oxide etching solution for preventing aluminum erosion

The invention provides a buffer oxide etching solution for preventing aluminum erosion. The etching solution mainly comprises hydrofluoric acid, ammonium fluoride, an additive, an organic solvent and ultrapure water. The etching solution provided by the invention is used for etching and cleaning an oxide layer film, and can prevent an aluminum layer from being eroded. Wherein the additive has relatively high solubility in the etching solution and is easy to disperse, and meanwhile, a stable protection effect can be formed on the surface of an aluminum film; the organic solvent has good solubility in an HF system, meanwhile, dissolution of the additive in an etching solution can be promoted, surface residues caused by precipitation formed at low temperature are avoided, meanwhile, certain viscosity improvement can improve the flatness of the surface of the aluminum film, and the surface roughness is lower. According to the etching liquid, the etching selection ratio of the oxide layer to ...

High-selectivity glass etching liquid and preparation method thereof

The invention relates to a high-selectivity glass etching solution and a preparation method thereof. The etching liquid formed by non-oxidizing inorganic acid, organic acid, fluorine-containing salts, alcohol compounds, anionic fluorocarbon surfactants and the like is used for selectively etching the glass fiber cloth on the metal layer, so that the effect of rapidly thinning the glass is achieved, and the metal of the conductive layer is not damaged as far as possible. By adjusting the matching and content ratio of the components and the preparation process flow, the glass is uniformly etched under the condition that the surface roughness of the glass is not changed, and the selection ratio of the glass etching rate to the metal etching rate is increased.

Driving motor control method and pivot steering device comprising same

The invention discloses a driving motor control method and a pivot steering device comprising the control method, in the control method, the target rotating speed of a driving motor serves as the target control value of the motor, and the invention further discloses a vehicle pivot steering control method, and when a vehicle is in a pivot steering state, the target rotating speed of the driving motor serves as the target control value of the motor. The target vehicle speed is converted into target motor rotating speed, the target motor rotating speed is sent to the motors on the two sides, and the motors on the two sides are controlled according to the following mode that the motors are controlled based on the speed difference between the current motor rotating speed and the target motor rotating speed, so that the current rotating speed of the motors is gradually close to the target rotating speed. In-situ steering of the vehicle is achieved. The motor rotating speed is used as the control ...

Novel magnetic separation sewage treatment unit

The invention discloses a novel magnetic separation sewage treatment unit, which comprises a tank, wherein a water inlet and a water outlet are arranged at the two ends of the tank; the tank is formed by jointing tank channels; the tank is divided into a regulating and stirring tank, a partition board flocculation tank, a magnetic separation settling tank and a smoothing settling tank, wherein the regulating and stirring tank is provided with a medicament feeding system and a stirrer; an inclined plate is arranged on the bottom of the partition board flocculation tank; a funnel is arranged below the magnetic separation settling tank; and a round magnetic cylinder and a rectangular magnetic cylinder are arranged above the funnel. The device can solve the problems of high investment and low efficiency of a single water treatment technique of sewage treatment plants, can remove impurities from sewage quickly and ensures stable effluent and simple hydraulic conditions.

High-selectivity and low-foam etching liquid

The invention discloses a buffer oxide etching solution with high selectivity and low foam. The etching solution mainly comprises hydrofluoric acid, ammonium fluoride, an additive, a surfactant and ultrapure water. The etching solution disclosed by the invention is used for etching a silicon dioxide film and can inhibit etching of a polycrystalline silicon layer and a silicon nitride layer at the same time. The additive can inhibit etching of the polycrystalline silicon layer and the silicon nitride layer at the same time, is good in dispersity in a solution system and not prone to blistering, and can avoid non-uniformity in the etching process. The surfactant is mainly used for reducing the surface tension of the etching liquid and improving the wettability of the etching liquid. The etching solution provided by the invention has high selectivity to a silicon dioxide layer and a polycrystalline silicon layer; meanwhile, the silicon dioxide layer and the silicon nitride layer have high ...

Test -tube brush

The utility model provides a test -tube brush, it includes that handle, brush are personally experienced sth. Part of the body and one end is fixed clean pole on the handle, the clean pole other end is fixed with many clean steel wires, the brush body includes the sleeve and is provided the outside brush head of sleeve, sleeve cover disposed on clean pole or on the clean steel wire. The test -tube brush can be used for the cleanness of test tube and flask, and it has, and scientific, rational in infrastructure, the practicality of design is strong, convenient to use and clean effectual advantage.

Multi-stage purification method of electronic-grade citric acid

The invention provides a multistage purification method of electronic-grade citric acid. The multistage purification method comprises the following steps: enabling a citric acid stock solution to pass through a resin column to obtain a primary citric acid purified solution; concentrating the primary citric acid purified solution under reduced pressure to obtain a citric acid primary concentrated solution; carrying out gradient cooling on the citric acid primary concentrated solution to obtain a suspension of citric acid crystals; centrifugally washing the citric acid suspension to obtain primary citric acid crystals; preparing the first-grade citric acid crystal into a first-grade citric acid purified solution; crystallizing and purifying the citric acid primary concentrated solution in a gradient cooling manner to obtain a suspension of citric acid crystals; and repeating the operation twice. The industrial-grade citric acid with relatively high metal content can be purified into high-purity ...

Marine natural gas storage tank provided with explosion protection device

The invention discloses a marine natural gas storage tank provided with an explosion protection device, and belongs to the technical field of storage tank manufacturing. A thermal insulation interlayer is filled with a thermal insulation material, and in cooperation with a vacuum effect, the thermal insulation performance is further improved. When the air pressure in the thermal insulation interlayer rises to a certain degree, an explosion-proof cover is thrust aside so as to prevent the air pressure in a shell from continuously rising. A protection cover can prevent the explosion-proof cover from flying outwards to injure staff and equipment after being thrust aside. An elastic piece can achieve dual functions of pressurizing the explosion-proof cover and blocking the flying of the explosion-proof cover.

Pinch roller protecting device of biomass briquetting machine

The invention discloses a protecting device of a biomass briquetting machine. The protecting device comprises an extruding device and a guiding body, wherein the extruding device comprises a material bin, a pinch roller shaft, a die disc and pinch rollers, the pinch roller shaft and the die disc are located in the material bin, the pinch rollers are installed at the two ends of the pinch roller shaft through bearings, the guiding body is arranged on the pinch roller shaft, the guiding body is a hollow conical body, an annular baffle is arranged on the edge of the lower port of the conical body and extends perpendicularly downwards, the lower end of the annular baffle is located in an annular groove formed in the die disc and not in contact with the bottom of the annular groove, the diameter of the outer circle of the annular groove is smaller than the inner diameter of the circle defined by inner circle die holes in the die disc, two rabbets are formed in the annular baffle symmetrical ...

Material collecting cabin

The invention discloses a material collecting cabin, which comprises a material collecting cabin body, wherein the material collecting cabin body is formed by a hollow post body arranged at the upper end and a hollow reverse cone body arranged at the lower end, a cover covers an upper end opening of the post body, a feeding opening is formed in the side wall of the post body, a cleaning device is arranged on the cover, the cleaning device comprises a motor and a cleaning brush, an output shaft of the motor is connected with one end part of the cleaning brush through the shaft coupler, brush hair is arranged on the side wall of the cleaning brush, and a vibrator is arranged on the outer wall of the reverse cone body part of the material collecting cabin body. The material collecting cabin has the advantages that the vibrator is arranged on the side wall of the lower end of the material collecting cabin body, and clotted powder materials and powder materials pasted on the inner wall of the ...

Early-warning method and device for terminal-user loss

The invention provides an early-warning method and device for terminal-user loss. The method includes: obtaining multi-dimensional user information and sampling data, wherein the multi-dimensional user information includes a user background attribute, a user consumption attribute, a user position attribute and a user terminal attribute, and the sampling data includes the total number of off-network users, the total number of on-network users and the total number of off-network users and the total number of on-network users of each user attribute; calculating information gain of each user attribute in the multi-dimensional user information and according to a preset correlation threshold, judging whether information gain of each user attribute is lower than the preset correlation threshold; and if not so, using user attributes as strong-correlation user attributes and calculating a user loss probability of each strong-correlation user attribute. Through analysis of historical loss data, user ...

Purification and real-time detection system and method for electronic grade hydrogen chloride

The invention provides an electronic grade hydrogen chloride purification and real-time detection system and method.The detection system comprises a hydrogen chloride storage device, a drying purifier, a gas suction tower and a detection device which are sequentially connected through a pipeline, an adsorbent is arranged in the drying purifier, and the detection device comprises a gas analyzer and a helium ion chromatograph; hydrogen chloride is collected to the tail gas absorption pipeline after being detected by the detection device. According to the detection system and method, impurities such as H2O, O2, CO, CO2, H2 and N2 in industrial hydrogen chloride can be effectively removed to obtain electronic-grade hydrogen chloride, and purified hydrogen chloride is detected in real time.

Titanium or titanium alloy etching solution

The invention provides a titanium or titanium alloy etching solution. The titanium or titanium alloy etching solution comprises hydrogen peroxide accounting for 10-30% of the total weight of the etching solution, a chelating agent accounting for 0.1-10% of the total weight of the etching solution, a pH regulator accounting for 1-8% of the total weight of the etching solution, a pH buffering agent accounting for 3-12% of the total weight of the etching solution and the balance deionized water. According to the invention, the pH buffering agent is introduced into the titanium metal etching solution, so that the reduction of OH <-> ion concentration in the etching solution can be effectively slowed down in the titanium metal etching period, the titanium metal etching rate is kept stable, and the service life of the etching solution is prolonged.

Treatment device for agricultural waste

The invention discloses a treatment device for agricultural waste. The treatment device for the agricultural waste comprises an incineration device and a smoke purification device. The incineration device comprises a furnace body, a furnace grate, a feeding hopper and a stirring device. The smoke purification device comprises a purification tank, two separating boards are arranged in the purification tank, and the inner space of the purification tank is divided into a first chamber, a second chamber and a third chamber from left to right through the two separating boards. Incineration is complete in the incineration process, heat generated in the incineration process is used, and meanwhile generated harmful smoke, especially acid gas, can be purified.

Airborne radar radome conformal heat dissipation structure and control system thereof

The invention discloses an airborne radar radome conformal heat dissipation structure and a control system thereof.The airborne radar radome conformal heat dissipation structure comprises an outer shell, a load, a driving unit, a liquid cooling pipeline, a first heat dissipation device and a second heat dissipation device, and the load, the driving unit, the liquid cooling pipeline, the first heat dissipation device and the second heat dissipation device are installed in the outer shell. The first radiator and the second radiator are attached to the inner wall of the metalized heat dissipation skin, a liquid cooling cavity of the load is sequentially communicated with the driving unit, the first radiator and the second radiator through a liquid cooling pipeline, and the driving unit can drive a heat exchange working medium in the liquid cooling pipeline to circularly flow among the first radiator, the second radiator and the load so as to dissipate heat of the load. The radiator and the ...

High-density soft melamine foam and preparing method

The invention discloses high-density soft melamine foam which comprises the raw materials of water-based melamino-formaldehyde resin initial polymers, solid hydroxymethyl melamine, a polar solvent, a surface active agent, a foaming agent, a curing agent and an adding agent. The invention further discloses a preparing method of the high-density soft melamine foam. The method comprises the steps that the water-based melamino-formaldehyde resin initial polymers are prepared; the water-based melamino-formaldehyde resin initial polymers, the polar solvent, the surface active agent and the adding agent are evenly mixed to obtain a mixture A; the mixture A and the solid hydroxymethyl melamine are evenly mixed, and a mixture B is obtained; the mixture B and the foaming agent are evenly mixed, and a mixture C is obtained; the mixture C and the curing agent are evenly mixed, and a mixture D is obtained; and the mixture D is subjected to microwave radiation foaming, solidifying, drying and quenching ...

Steering wheel sprays deburring device with carring over material out of

The utility model relates to a steering wheel sprays deburring device with carring over material out of, the slitter edge treatment facility technical field who belongs to the car steering wheel excircle, it includes the workstation, install the rotation axis on the workstation, be fixed with rotary platform on the rotation axis top, the rotation axis bottom is connected with the motor, the level is provided with the mounting panel directly over the workstation, both sides are fixed with a fixed plate respectively about bottom the mounting panel, the every fixed plate outside all is provided with the cylinder, all be provided with the blade every fixed plate inboard, the cutting of blade is in its below and all is provided with the waste recycling passageway, install on the workstation on the waste recycling on right side passageway right side and deposit the mechanism, spray the mounting panel at half right partial fixing of workstation, it sprays pump and shower water storage tank to ...

Grouting leaking stoppage equipment with heating function and leaking stoppage method

The invention discloses grouting leaking stoppage equipment with a heating function and a leaking stoppage method.The grouting leaking stoppage equipment comprises a base and wheels, the wheels are arranged at the lower end of the base, a first motor is arranged at the position, close to the left side, of the upper end of the base, and a control box is arranged above the first motor; the grouting leaking stoppage equipment with the heating function is improved, a second motor is arranged on the right side of a feeding port, an output shaft is arranged in the feeding port and located on the left side of the second motor, a sleeve is arranged outside the output shaft, a rotating piece is arranged outside the sleeve, and an inserting hole is formed in the sleeve; according to the grouting and leaking stoppage equipment with the heating function, when the grouting and leaking stoppage equipment with the heating function is used, materials can enter the discharging pipe at a constant speed, ...

Water-cooled heat storage combustor

The invention relates to a water-cooled heat storage combustor which comprises a gas pipe, a heat storage box, a fire outlet pipeline, heat storage bodies and an air pipe. The gas pipe is located in the heat storage box and above the fire outlet pipeline, the heat storage bodies are arranged on the right side of an inner cavity of the heat storage box in the horizontal direction and the vertical direction respectively, and the air pipe is arranged at the position, on one sides of the heat storage bodies, of the heat storage box. A circulating water cooling component is further included, and is arranged at the bottom of the heat storage box and the position of the fire outlet pipeline. The circulating water cooling component comprises a water inlet pipe, a water outlet pipe and a cooling water sleeve, the water inlet pipe and the water outlet pipe are arranged on the left side and the right side of the cooling water sleeve respectively, and the cooling water sleeve is of a multi-layer annular ...

Multi-target detecting method for early-stage bladder cancer

The invention relates to a multi-target detecting method for the early-stage bladder cancer, and belongs to the technical field of biological detection. The multi-target detecting method comprises the following steps of: (1) extracting DNA contained in urea of a patient; (2) carrying out hydrosulphite conversion treatment onto the obtained DNA; (3) detecting seven marker genes including EOMES, GDF15, NID2, PCDH17, POU4F2, TCF21 and ZNF154 by virtue of methylation specific fluorescence quantitative PCR, wherein ALU-C4 is used as a reference gene; (4), judging whether the patient suffers from the early-stage bladder cancer or not according to a CT value in the step (3). The multi-target detecting method disclosed by the invention has the following advantages: a plurality of biomarker genes are adopted for joint detection, and a mode of combining a plurality of markers is applied to improve detecting sensitivity and specificity on the premise of higher specificity of each marker; specific ...

Method for treating algal bloom by using modified attapulgite as flocculant

The invention discloses a method for treating algal bloom by using modified attapulgite as flocculant, comprising the following steps: dipping the attapulgite powder into hydrochloric acid for 23-25h according to the ratio of solid to liquid being 1-3:2-4, drying, pulverizing into powder to obtain flocculant; adding the flocculant into algae water, stirring, standing, and then removing algae flocby a filtering or spooning method. The invention can effectively adsorb flocculating algae, thereby being convenient to remove algae floc by the filtering or spooning method, and having obvious effect on removing nitrogen and phosphorus in water body; the method can treat both the principal and secondary aspects, fundamentally removes danger caused by algal bloom storm, and has low cost, thereby having great application value and market potential.

Etching solution for etching silicon dioxide with high selectivity relative to doped polycrystalline silicon

The invention provides an etching solution for etching silicon dioxide with high selectivity relative to doped polycrystalline silicon, such as boron-doped polycrystalline silicon and boron-phosphorus-doped polycrystalline silicon, and the etching solution comprises hydrofluoric acid, ammonium fluoride, an additive, organic acid and ultrapure water. According to the etching liquid, the etching liquid with low surface tension and excellent wettability can be obtained under the action of the additive, and meanwhile, the additive and the organic acid are added to protect doped polycrystalline silicon, so that a stable protective film can be formed on the surface of the doped polycrystalline silicon, silicon dioxide is selectively etched, and the corrosion resistance of the doped polycrystalline silicon is improved. The etching selection ratio of the silicon dioxide to the doped polycrystalline silicon can reach more than 2000, and the surface roughness of the etched doped polycrystalline silicon ...

Measuring tool

The utility model discloses a measuring tool which comprises an L-shaped support, a supporting plate and a toothed bar. The L-shaped support comprises a vertical rod and a transverse rod, the toothed rod is movably inserted into the vertical rod and is horizontally arranged, the supporting plate is installed on the transverse rod and can move along the transverse rod, a limiting device is installed at one end of the supporting plate, and the limiting device limits movement of the toothed rod. The diesel engine adjusting device is high in universality, the production efficiency is greatly improved, the adjusting precision is high, and the effect of the batch production capacity of various diesel engines is achieved.

Swift spacing flanging machine of retrieving of cylinder type for battery case

The utility model relates to a swift spacing flanging machine of retrieving of cylinder type for battery case, belong to battery case hem technical field, it includes the workstation, install the die block on the workstation, be fixed with the erection column on the workstation on die block right side, be fixed with the mounting panel on the left side wall of erection column, it is provided with the hem canceling release mechanical system who is used for the hem to correspond the die block directly over it, hem canceling release mechanical system includes the installing support, hem sword and transfer line, the hem sword is installed at the transfer line lower extreme, be fixed with the board that resets on the transfer line, the vertical cylinder that is provided with directly over the transfer line, be fixed with the stopper on the die block on hem sword right side, be fixed with the accumulator mounting panel in the workstation lower right corner, install the accumulator on the accumulator ...

Feeding device

The invention discloses a feeding device which comprises a fan, a material collecting trough and a delivery pipe, wherein the material collecting trough is of a tank body structure that a feed opening is formed in the top of the tank body structure and an air inlet and a discharge opening are respectively formed in the left side and the right side of the tank body structure; the output end of the fan is connected with the air inlet of the material collecting trough; the discharging end of the material collecting trough is connected with a bottom port of the delivery pipe. According to the feeding device disclosed by the invention, the linking of a straw crusher and a pressing block forming machine is realized and manual feeding is eliminated, so that the working efficiency is greatly increased; meanwhile, by blowing of the fan, the feeding device plays a certain role in drying crushed straw powder and subsequent block pressing and forming of the straw powder is facilitated.

Etching solution for etching doped silicon oxide/silicon carbonitride with high selectivity

The invention discloses a high-selectivity etching doped silicon oxide/silicon carbonitride etching solution, doped silicon oxide comprises phosphorosilicate glass and boron phosphorosilicate glass, and main active components comprise hydrofluoric acid, ammonium fluoride, an active additive and ultrapure water. The hydrofluoric acid in the etching solution plays a role in etching, and the ammonium fluoride mainly plays a role in buffering. The surfactant reduces the surface tension of the solution, increases the wettability of the solid surface, forms a layer of protective film on the surface of the silicon carbonitride, inhibits the etching of the silicon carbonitride, and improves the etching rate of the doped silicon oxide. The two additives are compounded for use, so that the solution interfacial tension is low, the defoaming performance is good, bubbles are not easily generated in the etching process, the etching uniformity is improved, and the roughness of the surface of an etched ...

Cleaning solution and cleaning method for carbon-containing film layer

The invention belongs to the field of electronic chemicals, and particularly relates to a cleaning solution and a cleaning method for a carbon-containing film layer. The cleaning solution comprises dichromate, acid, fluoride, a surfactant and ultrapure water. The cleaning solution can effectively remove carbon-containing film layers such as a carbon film, a silicon oxycarbide film and a silicon carbonitride film on the surface of a wafer, does not damage the surface of the silicon wafer, and is beneficial to reuse of the wafer.

Composition with effect of promoting antioxidant enzyme expression and application thereof

The invention relates to the technical field of cosmetics, and discloses a composition with an effect of promoting antioxidant enzyme expression and application of the composition. The composition with the effect of promoting antioxidant enzyme expression, provided by the invention, comprises a turmeric root extract and dimethyl methoxy chromanol, and the mass part ratio of the turmeric root extract to the dimethyl methoxy chromanol is (0.5-3): 1. According to the composition, the turmeric root extract and the dimethyl methoxy benzodihydropyranol are mixed according to the mass part ratio, and the synergistic interaction effect is achieved in the aspect of the effect of promoting antioxidant enzyme expression. When the composition with the effect of promoting the expression of the antioxidant enzyme is applied to cosmetics and/or skin care products, obvious skin antioxidant and anti-aging effects can be achieved under the condition of lower application amount.

Method for purifying electronic grade NMP (N-Methyl Pyrrolidone)

The invention relates to a method for purifying electronic-grade NMP (N-Methyl Pyrrolidone), which comprises the following steps of: uniformly mixing metal ions and organic ligands in water or an organic solvent according to a certain proportion; reacting the obtained mixture for a certain time under certain atmosphere, temperature and pressure by adopting one or more of a hydrothermal method, a microwave method, a radiation synthesis method and the like to obtain MOF (Metal Organic Framework); filling an adsorption column with one or more of the obtained MOF materials, injecting NMP into the adsorption column at a certain flow rate, and staying for a certain period of time; and collecting the treated NMP solution at the outlet of the adsorption column to obtain purified NMP. According to the method, most of metal impurities in the NMP solution can be efficiently removed, and the electronic grade NMP product larger than or equal to 99.999% can be obtained.

Self-preheating burner

The invention relates to a self-preheating burner which comprises a smoke exhaust pipe, an ejector, a gas preheating pipe, a T-shaped pipe, an air pipeline and a gas pipeline. The smoke exhaust pipe is connected with a first straight pipe segment, located in the gas preheating pipe, of the T-shaped pipe, the ejector is of a tubular structure, one end of the ejector stretches into the smoke exhaust pipe, the other end of the ejector is connected with an air compressor, a gas inlet and a gas outlet are formed in the gas heating pipe, a second straight pipe segment of the T-shaped pipe is located outside the air pipeline of a nozzle, the first straight pipe segment of the T-shaped pipe is located in the gas preheating pipe, and a gas preheating cavity is formed between the first straight pipe segment and the gas preheating pipe. The gas pipeline is arranged in the air pipeline to form the nozzle structure. A hot gas channel in the gas preheating pipe is composed of a plurality of hot gas circulating ...

Magnetic flocculating agent and method for clearing algal bloom by using same

The invention relates to a magnetic flocculating agent of modified attapulgite, which is prepared by mixing the modified attapulgite with functions of adsorption-bridging and net-capturing. The invention also provides a method for clearing algal bloom by using the magnetic flocculating agent of the modified attapulgite, which comprises the following steps: putting the magnetic flocculating agent of the modified attapulgite into algae containing solution; forming a micro-nano network by using the modified attapulgite with the functions of adsorption-bridging and net-capturing; combining the micro-nano network with the colloidal particles such as algae cells, nitrogen, phosphorus and the like in water; and moving flocout out of the water by utilizing an external magnetic field. The method has simple preparation process, and simple and convenient operation. By utilizing the magnetic flocculating agent, hazardous substances in the water can be adsorbed and net-captured fast so as to improve ...

Channel cleanout is with dive mixer

The utility model discloses a channel cleanout is with dive mixer, the dive mixer includes the casing, play the gallows, the dive motor, electric motor rotating shaft, the mechanical seal device, the fin, impeller and kuppe, set up in the casing in sensor and the alarm device of leaking, the both ends of dive motor all are provided with sealed felt collar and sealing ring, the mechanical seal device includes the shell, the gland, the packing seal device, quiet ring sum rotating ring, the shell is connected with the elasticity seal cover through shell positioning bolt, quiet ring is connected with the elasticity seal cover through quiet ring positioning bolt, the rotating ring is connected with electric motor rotating shaft through the rotating ring trundle, the both sides of impeller all are provided with the stirring tooth, be provided with on the kuppe position and adsorb the ring, be provided with the filter layer in the kuppe, the utility model discloses simple structure, the practicality ...

Method for adsorbing and removing phycobiliprotein and phycotoxin

The invention discloses a method for adsorbing and removing phycobiliprotein and phycotoxin by utilizing high polymer complex modified fly ash, which comprises the following steps of: stirring and uniformly mixing fly ash, magnetite powder and concentrated hydrochloric acid according to a certain proportion, drying, pulverizing into powder, and mixing the powder with poly dimethyl diallyl ammonium chloride according to the mass part ratio of 1:1-2 to obtain a water processing agent; preparing a suspension from the water processing agent and water; and adding the suspension into waste water containing the phycotoxin and the phycobiliprotein according to the addition ratio of 100-250mg/L, stirring, settling, and then removing and collecting magnetic floccules in the waste water from a water body by utilizing an external magnetic field. The invention not only can effectively adsorb the flocculated phycotoxin and the phycobiliprotein, but also can rapidly remove algae from the water body through ...

Clamping hoop curved tooling and clamping hoop U-shaped forming mold

The invention provides a clamping hoop curved tooling and a clamping hoop U-shaped forming mold. The U-shaped forming mold comprises a second upper pressing mold and a second lower pressing mold; the second lower pressing mold is provided with a second forming groove which is used for matching with a curving radius of a neck part of a clamping hoop and extends leftwards and rightwards; the second lower pressing mold is also provided with a limiting structure which is used for stopping and limiting a first blank body in the front-and-back direction to determine a pressing and forming position of the neck part of the clamping hoop; the second upper pressing mold is provided with a second pressing head which is as same as the curving radius of the neck part of the clamping hoop and matches with the second forming groove. The limiting structure and the second forming groove of the clamping hoop U-shaped forming mold and the can determine the curving position of the neck part of the clamping ...

Method, device, and terminal for switching operating systems

A method, a device and a terminal for switching an operating system provided in the present disclosure, are related to a field of information technology and can simplify operations and improve user experience. The method includes: firstly detecting whether a second application in a second operating system is ended when a running operating system in user equipment is switched from a first operating system to the second operating system; switching the running operating system in the user equipment from the second operating system back to the first operating system when the second application is ended, and running a first application. The present disclosure is applicable to the user equipment to switch the running operating system from the second operating system back to the first operating system and run the first application.

FAST SWITCHING METHOD, DEVICE AND TERMINAL OF DUAL SYSTEM

The present disclosure discloses a fast switching method, device and terminal of a dual system, the method includes: creating a short-cut icon of an application of a second system according to an input creation instruction, and displaying the short-cut icon in a first system; and switching to the second system and running the application corresponding to the short-cut icon when the short-cut icon is triggered. The present disclosure can directly start the application of the second system by means of the short-cut icon, switching operations between the dual system are simplified, and it is convenient for the user to use. 1. A fast switching method of a dual system , comprising:creating a short-cut icon of an application of a second system according to an input creation instruction, and displaying the short-cut icon in a first system;switching to the second system and running the application corresponding to the short-cut icon when the short-cut icon is triggered.2. The fast switching method of a dual system of claim 1 , wherein creating a short-cut icon of an application of a second system according to an input creation instruction comprises:marking the short-cut icon to be belonged to the application of the second system when the first system displays the short-cut icon.3. The fast switching method of a dual system of claim 1 , wherein switching to the second system and running the application corresponding to the short-cut icon when the short-cut icon is triggered comprises:when a short-cut icon in the first system is triggered, determining whether the triggered short-cut icon is belonged to an application of the second system; andwhen the triggered short-cut icon is belonged to an application of the second system, switching to the second system and running the application corresponding to the short-cut icon; orwhen the triggered short-cut icon is not belonged to an application of the second system, running an application corresponding to the short-cut icon in the ...

Method for preparing high-performance melamine foam

The present disclosure relates to a method for preparing high-performance melamine foam, comprising the following steps: preparing a primary polymer of waterborne melamine formaldehyde resin; uniformly mixing the primary polymer of the waterborne melamine formaldehyde resin, the polar solvent, the surfactant and the additive to obtain a mixture A; uniformly mixing the mixture A with the solid methylol melamine to obtain a mixture B; uniformly mixing the mixture B with the foaming agent to obtain a mixture C; uniformly mixing the mixture C with the curing agent to obtain a mixture D; and carrying out microwave radiation, foaming, curing, drying and quenching on the mixture D in a microwave foaming device to obtain the high-density melamine foam. The melamine foam described in the present invention has high density and high strength performance.

Communication apparatus with a solar energy charging function

A communication apparatus with a solar energy charging function includes a main system and a display device movably and pivotally coupled to the main system to define a foldable mobile phone, and a solar panel is coaxially and pivotally coupled to a pivotal connecting position of the display device and the main system, such that the solar panel can be folded and covered onto an external distal surface of the display device. If the battery power of the mobile phone is low, users can lift the solar panel open from the display device to charge the battery that is electrically coupled to the mobile phone, so as to enhance the power capacity, using time limit and battery charging requirements of the communication apparatus.

Communication Device Charged with Solar Energy

A communication device charged by solar energy forms a foldable mobile phone by pivotably connecting a first pivot provided on one end of a host to a display. One end face of the display is provided with a second pivot. A solar plate is pivotably connected to the second pivot of the display to foldably cover on the display. With the above structure, if the electricity of the battery of the mobile phone is insufficient, the user can unfold the solar plate from the display to charge the electrically-connected battery of the mobile phone, thereby to overcome the inconvenience in supplementing the electricity of the battery.

Immunoassay plates with desiccant housing

A system to reduce moisture in a device having at least one integrated desiccant housing to hold desiccant materials. The integrated desiccant housing protects a desiccant bag or tablet from being damaged in the process of packaging, transporting and storing the device. In particular, an diagnostic assay tray assembly having sample wells with active biochemical coatings can be better preserved by implementing one or a plurality of integrated desiccant housing therein.

Multifunctional low-position lighting LED lamp

一种多功能低位照明LED灯具，属于LED灯具技术领域。灯具包括照明组件，所述照明组件包括照明壳体、透光盖板，所述照明壳体的后端容置腔用于容置照明控制组件，所述照明壳体的前端容置腔用于容置低位照明组件和引导灯组件；所述低位照明组件和所述引导灯组件之间通过隔板隔离，所述透光盖板封装在所述照明组件的出光侧，使得低位照明组件和引导灯组件容置于单独的子容置腔内；所述照明控制组件用于控制低位照明组件和引导灯组件的照明。本实用新型将低位照明与功能性的引导指示灯照明功能集合在一体，不仅降低了成本，而且增加了道路驾驶安全性。

Methods for simultaneous amplification of dna and rna

The present disclosure provides methods for co-amplifying RNA and DNA from a biological sample in a single reaction compartment. In some aspects, allowing for simultaneously generating RNA and DNA sequencing libraries. In particular, the disclosed methods allow high-throughput amplification and sequencing of both RNA and DNA from a single sample source without the need to divide the sample to separate nucleic acids from each other.

リスク管理装置、リスク管理方法及びリスク管理プログラム

【課題】リスクの上昇に寄与する要因を容易に把握できるリスク管理装置を提供すること。【解決手段】リスク管理装置は、評価対象者の生体パラメータに関する生体情報と前記評価対象者の行動パラメータに関する行動情報を取得する取得部と、取得された前記生体情報及び前記行動情報に基づいてイベント発症率を算出するリスク算出部と、前記生体情報及び前記行動情報の中から改善可能因子となる生体パラメータ及び行動パラメータを選択する選択部と、前記改善可能因子として選択された前記生体パラメータ及び前記行動パラメータのそれぞれについて前記イベント発症率に対する寄与度を算出する寄与度算出部と、前記寄与度算出部での算出結果を表す出力データを生成する生成部と、を備える。【選択図】 図１

Probe of detector

A probe of a detector includes a shield, an anode member, and a cathode member. The shield includes a top wall and a plurality of sidewalls extending down from the sides of the top wall. A first through hole and a second through hole are defined in the top wall. The anode member includes a first mounting portion, a first pin, and a first connecting portion connected between the first mounting portion and the first pin. The cathode member includes a second mounting portion, a second pin, and a second connecting portion connected between the second mounting portion and the second pin. The first and second mounting portions are respectively rotating within the first and second through holes to adjust corresponding ends of the first and second pins to come in contact with the electronic component.

Safe control structure for water flow of water heater

Rolling combination method for the heat pipe and heat transfer base

Positioning system of overhead crane device

Methods, devices, and heterogeneous systems for connecting product to monitoring system

Connecting a product to a monitoring system is described. In a computer-implemented method, meta information of each entity that serves as a hardware basis of each functional part is determined based on each functional part comprised in a to-be-connected product. Based on the meta information of each entity, a model of each entity is constructed that is expressed in a form of a dimension table and that corresponds to each entity. Corresponding meta information content is obtained from the to-be-connected product based on meta information in the model of each entity. A monitoring task is configured based on the model of each entity and a functional part to which each entity belongs. The to-be-connected product is monitored based on the monitoring task and meta information content in the model of each entity.

Structure of hydraulic gas flow controller for the gas heater

Liquid crystal display device

Methods for simultaneous amplification of dna and rna

The present disclosure provides methods for co-amplifying RNA and DNA from a biological sample in a single reaction compartment. In some aspects, allowing for simultaneously generating RNA and DNA sequencing libraries. In particular, the disclosed methods allow high-throughput amplification and sequencing of both RNA and DNA from a single sample source without the need to divide the sample to separate nucleic acids from each other.

可水平插疊式推車

多功能型被毯

一種多功能型被毯，係主要包括一被體，該被體一側邊具有一帽兜，於該被體之相鄰被角位置分別設有一鬆緊帶，且該些鬆緊帶位置係設於該帽兜之兩側位置，於各鬆緊帶一端上係設有一第一扣合座，於各鬆緊帶另一端位置則設有ㄧ第二扣合座，該第一扣合座係用以扣合第二扣合座，再於鄰近各鬆緊帶位置係設有一固定夾，於該被體且相對於該帽兜位置另一側邊上係具有一縫口，於該縫口兩側邊上分別設有複數相扣合之第一扣合座及第二扣合座，以利對應扣合，用以將該縫口封合，另於該被體另兩被角位置上且相鄰於縫口兩側設有第一扣合座及第二扣合座。

Structure of a rainproof cover of the ventilation funnel of a boat

掌上型電池檢測裝置

Dual-purpose rod-like material feeding structure

Improved structure for skylight sunshade

Liquid crystal display device

Switchable solar-powered auxiliary air conditioning system for automobiles

Flat panel display with support providing pivoting

An exemplary flat panel display includes a seat, a connection member, and a display module. The seat includes a supporting member having a first engaging portion at a top end thereof, and the first engaging portion includes two pins and two fixing holes. The connection member includes two fixing components. The display module is mounted on the supporting member, and includes a second engaging portion having two positioning slots. The pins of the first engaging portion are received in the second engaging portion, the fixing components are fixed in the fixing holes via the positioning slots, and the positioning slots provide paths for the fixing components when the display module is rotated about the pins.

Composite standing (walking) aid

Retinol derivative composition and use thereof

The present disclosure relates to the technical field of cosmetics and discloses a retinol derivative composition and use thereof. The present disclosure provides the retinol derivative composition, including hydroxypinacolone retinoate and retinyl propionate, wherein the ratio of the hydroxypinacolone retinoate to the retinyl propionate in parts by mass is (5-40):9. The present disclosure utilizes the synergistic effect of the hydroxypinacolone retinoate and the retinyl propionate, can extremely significantly increase the expressions of important series of proteins related to aging, and has no cytotoxicity. Therefore, when the retinol derivative composition provided by the present disclosure is used in cosmetics and/or skin care products, the composition can reach a significant anti-aging effect with a low application amount and less skin irritation.

Passive electromagnetic dart target machine

電磁式手寫輸入裝置及其電磁感應板結構

Composition capable of enhancing expression efficacy of antioxidant enzyme and use thereof

The embodiments of the present disclosure relate to the technical field of cosmetics, and disclose a composition capable of enhancing an expression efficacy of an antioxidant enzyme and use thereof. The composition includes a Curcuma Longa (Turmeric) root extract and dimethylmethoxy chromanol, wherein a mass fraction ratio of the Curcuma Longa (Turmeric) root extract to the dimethylmethoxy chromanol is (0.5-3):1. A synergistic effect can be achieved in terms of promoting the expression efficacy of an antioxidant enzyme by mixing the Curcuma Longa (Turmeric) root extract and the dimethylmethoxy chromanol at a specific mass fraction ratio. Therefore, the use of the composition according to the present disclosure with the effect of promoting the expression of antioxidant enzymes in a cosmetics product and/or skin care product exerts significant skin antioxidant and anti-aging effects at a lower application amount.

Composition for promoting antioxidase expression and use thereof

The embodiments of the present disclosure relate to the technical field of cosmetics, and disclose a composition capable of enhancing an expression efficacy of an antioxidant enzyme and use thereof. The composition includes a Curcuma Longa (Turmeric) root extract and dimethylmethoxy chromanol, wherein a mass fraction ratio of the Curcuma Longa (Turmeric) root extract to the dimethylmethoxy chromanol is (0.5-3): 1. A synergistic effect can be achieved in terms of promoting the expression efficacy of an antioxidant enzyme by mixing the Curcuma Longa (Turmeric) root extract and the dimethylmethoxy chromanol at a specific mass fraction ratio. Therefore, the use of the composition according to the present disclosure with the effect of promoting the expression of antioxidant enzymes in a cosmetics product and/or a skin care product exerts significant skin antioxidant and anti-aging effects at a lower application amount.