39results about How to "Troubleshoot unstable technical issues" patented technology

The invention discloses a magnetic solid-phase extraction material and a preparation method and application thereof. The preparation method includes the following steps that 1, ferroferric oxide is prepared; 2, magnetic ferromagnetic oxide nanometer carbon spheres are prepared: the ferroferric oxide prepared in the step 1 is dispersed in a glucose solution, reaction is performed at the temperature of 160-200 DEG C for 5-8 hours to obtain magnetic ferroferric oxide nanometer carbon spheres; 3, amino silanized magnetic nanometer carbon spheres are prepared: the magnetic ferroferric oxide nanometer carbon spheres prepared in the step 2 are dispersed in anhydrous ethanol, then (3-aminopropyl) triethoxy silane is added, and reaction is performed at the temperature of 30-60 DEG C for 6-30 hours to obtain the magnetic solid-phase extraction material. The preparation method is simple and safe and easy to implement, and the raw materials are cheap and easy to obtain. The prepared novel material serves as a magnetic solid-phase extraction adsorbent and is successfully applied to efficient separation and sensitivity analysis of bisphenol A, bisphenol AF, tetrabromobisphenol A and other polar environmental pollutants in the environment.

The invention relates to the field of a washing composition taking a surface active compound as a main base material and particularly relates to a stain removal liquid dish washing detergent. The stain removal liquid dish washing detergent comprises a surfactant and is characterized by comprising a stain remover, an aid, a preservative, a chelating agent and essence, wherein the mass percent concentration of the components are as follows: surfactant: 10-30%; stain remover: 0.1-5%; aid: 0.05-5%; preservative: 0.001-1%; chelating agent: 0.001-1%; essence: 0.001-5%; and deionized water: the balance. The stain removal liquid dish washing detergent provided by the invention has a strong stain removal capability and is mild to the human body.

The invention discloses a communication interface circuit and a communication method. The communication interface circuit comprises a master control chip and a connector, wherein the master control chip comprises a communication interface; the connector is connected with the communication interface through a parallel bus; and part of or all signal wires in the parallel bus are provided with pull-up circuits. The technical problems that master control chips in the prior art are connected through a connector to cause unstable communication signals is solved.

The invention discloses a decorative line. The decorative line comprises a seam beautifying decorative line body and a fixing decorative line body. The seam beautifying decorative line body comprisesa line main body, an inserting connection body and a splicing body; a seam beautifying face is arranged on the line main body; the line main body and the splicing body are perpendicularly connected, and the splicing body extends towards the two sides of the line main body; the seam beautifying face and a splicing face on the splicing body are parallel mutually; the inserting connection body is perpendicularly arranged on the side face of the line main body and is parallel to the splicing body; a limiting clamping groove structure is arranged on the splicing body; and a limiting clamping-connection structure matched with the limiting clamping groove structure on the splicing body in use is arranged on the fixing decorative line body. According to the decorative line, the technical problem that connection of an existing veneer fixing line with a seam beautifying function and a veneer is unfirm is solved, the veneer mounting splicing position is beautified, veneer splicing operation is rapid and convenient, and the veneer is mounted firmly and reliably.

The invention relates to a solid beverage containing omega-7 fatty acid and a preparation method of the beverage. The solid beverage consists of the following components in parts by weight: 10-50 parts of microcapsules containing omega-7 fatty acid, 5-55 parts of soybean protein peptide powder, 20-70 parts of skimmed milk powder, 0-6 parts of fruit powder, 0.1-5 parts of essence and 0.01-5 parts of a sweetener. The preparation method of the solid beverage carries out microcapsule embedding treatment on the instable high-content omega-7 fatty acid, not only improves the quality of the omega-7 fatty acid, but also furthest maintains the original activity of functional fat of the omega-7 fatty acid, prevents and postpones omega-7 fatty acid denaturation, and significantly solves the technicalproblem that the high-content omega-7 fatty acid is unstable in beverages. At the same time, the method transforms liquid fat into a protein-type solid beverage which is universally popular and accepted, meets the requirements of convenient consumption and taste diversity of nutrition beverages for modern people, and facilitates industrial processing and industrial transportation.

The invention discloses a smart home hybrid control system based on Can-Bus. The smart home hybrid control system comprises a main control module, a plurality of sub-control modules and a plurality ofprotocol converters, wherein each sub-control module is provided with N communication interfaces, and each sub-control module is connected with smart home equipment through the communication interface; each main control module is connected with one protocol converter through any communication interface; the main control module comprises a control panel and an editor; the control panel is used forsending a control instruction to each sub-control module; and the editor is used for carrying out logic editing on third-party smart home equipment to enable the control system to add or delete the third-party smart home equipment. According to the smart home hybrid control system based on the Can-Bus, the technical problem that the system is unstable after third-party smart home equipment is added in the prior art can be effectively solved, and the operation stability of the system can be effectively improved.

The invention provides a wallpaper display method and a wallpaper display device. The method comprises the steps: starting the wallpaper carousel service of a system when a user-defined instruction ofwallpaper is received, and enabling the system authority of the wallpaper carousel service not to belong to the background application cleaning authority; obtaining a plurality of pieces of wallpaperto be played, drawing a switching entry display parameter corresponding to each piece of wallpaper according to a preset rendering algorithm in the wallpaper carousel service, and setting switching time between the pieces of wallpaper; when it is monitored that the switching time arrives, obtaining a to-be-displayed target wallpaper, and inquiring switching entry display parameters; and obtaininga target entrance display parameter corresponding to the target wallpaper, and switching the target wallpaper according to the target entrance display parameter. Therefore, the technical problems that in the prior art, a black screen occurs during wallpaper switching during wallpaper carousel, and carousel service is unstable due to the fact that wallpaper carousel is easy to clean by a user aresolved.

The invention discloses a distributed amplifier. In the distributed amplifier disclosed by the invention, a drain low frequency terminal and a grid low frequency terminal are provided, wherein the drain low frequency terminal consists of a drain low frequency signal grounding path, and the grid low frequency terminal consists of a grid low frequency signal grounding path, so that low frequency signals are absorbed by the ground at the grid terminal prior to amplification; after amplification by a gain unit, the amplified low frequency signals are absorbed by the drain low frequency terminal according to the same principle, so that the gain flatness of a low frequency band of the distributed amplifier is obviously improved, and the technical problem that the gain flatness of the current distributed amplifier is poor in the low frequency band and easily causes the instability of the amplifier is solved.

The invention discloses a method for detecting the content of lycopene. The method comprises the following steps: (1) extracting a tomato sample to obtain a sample solution, or dissolving a tomato extract sample to obtain a sample solution, wherein the concentration of the sample solution is 0.01-0.1 mg / mL; (2) measuring the sample solution by using a spectrophotometer to obtain the content of total carotenoid in the sample; (3) measuring the sample solution by using a high performance liquid chromatographic instrument to obtain the peak area normalization ratio of lycopene, wherein the chromatographic column is Agilent ZOBAX SB-C18 and is 150mm*4.6 mm and 5[mu]m, a mobile phase condition is that methanol: dichloromethane is 95: 5, and the same detection wavelength as step (2) is adopted;(4) calculating the content of lycopene in the sample according to a calculation formula X=X0*P, wherein X is the content of lycopene in the sample; X0 is the content of total carotenoid in the sample; and P is the peak area normalization ratio of lycopene in the sample. The method can ensure the detection accuracy and stability, and is simple and fast to operate.

The invention discloses detection equipment and a method. The equipment comprises a friction force coefficient sensor and a judgment mechanism, wherein the friction force coefficient sensor is used for detecting the friction force coefficient on the surface of paper money to be detected, and the judgment mechanism is connected with the friction force coefficient sensor and used for judging whether a sticker exists on the surface of the paper money or not according to the friction force coefficient detection result. The technical problem that detection equipment in the related technology is unstable when detecting the target paper money is solved.

The invention discloses a design method and application of an unmanned aerial vehicle variable parameter neurodynamics controller. The method comprises the following steps: constructing an unmanned aerial vehicle model; designing a height controller, a yaw angle controller, a roll angle controller, a pitch angle controller, an X controller and a Y controller of the unmanned aerial vehicle by adopting a variable parameter recurrent neurodynamics method based on the unmanned aerial vehicle model; and inputting the control target and unmanned aerial vehicle state information collected by the unmanned aerial vehicle sensor into controllers of all unmanned aerial vehicles, and enabling the controllers of all unmanned aerial vehicles to output control components to control flight of the unmannedaerial vehicles. According to the method, a nonlinear activation function is utilized, and the obtained controller can enable the unmanned aerial vehicle to converge to a target more quickly under the condition of large errors and achieve higher precision under the condition of approaching a task target, so that the unmanned aerial vehicle can control the unmanned aerial vehicle to track a time-varying trajectory quickly, accurately and in real time.

The embodiment of the invention provides a program upgrading method and device for Internet of Things equipment, and the Internet of Things equipment. The method comprises the following steps: detecting an upgrading triggering message transmitted by an equipment management server in the operation process of at least one application program; in response to the upgrading trigger message, closing atleast part of the application programs based on resource occupation of the at least one application program; downloading a to-be-upgraded program from an upgrading server; running the to-be-upgraded program, and completing an upgrading task of the Internet of Things device; and running the at least one application program again. According to the embodiment of the invention, the conflict between the running application program and the upgrading task is reduced to improve the upgrading efficiency and the system stability.

The invention discloses a heat pump set and control method and apparatus thereof. The method comprises: when a heat pump set starts a defrosting mode, a first step number of an auxiliary electronic expansion valve in the heat pump set is obtained, wherein the auxiliary electronic expansion valve is arranged on a shunt unit of a compressor spraying enthalpy port behind a condenser in the heat pump set; the e auxiliary electronic expansion valve is closed; and after the heat pump set turns off the defrosting mode, the step number of the auxiliary electronic expansion valve is adjusted to be the first step number. Therefore, a technical problem that the heat pump set is not stable in the prior art can be solved.

The invention belongs to the technical field of display devices, and particularly relates to a quantum dot light-emitting diode and a preparation method thereof. The preparation method of the quantum dot light-emitting diode comprises the following steps: providing a substrate, depositing a mixed solution containing a cross-linking agent and a hole function material on the substrate, carrying out annealing treatment, and then carrying out a cross-linking reaction under ultraviolet irradiation to obtain a hole function layer, wherein the hole functional material is an organic material containing benzyl. In the quantum dot light-emitting diode obtained by the preparation method, the formed hole function layer film has good stability and is not easily influenced by a solvent used for preparing the quantum dot light-emitting layer, so that the device has a smooth and complete film form, the light-emitting property of the device can be improved, and the service life of the device can be prolonged.

The invention discloses a broadband carrier relay, a message transmission method and a message transmission device. The message transmission method comprises the steps of receiving a first message, wherein the first message is a broadband power line carrier message or a wireless message; converting the first message into a second message, wherein the second message is the broadband power line carrier message or the wireless message; determining a sending manner corresponding to the second message; and sending the second message in the corresponding sending manner. According to the relay, the method and the device provided by the invention, the technical problem that in related technologies, the problem of instability of a carrier signal link cannot be effectively solved in an area with large signal attenuation is solved.

A method to switch CPU operation voltage by utilizing N subcalculation means includes two compare CPU present operation voltage with the new operation voltage to be switched on for obtaining a differential value of switching high-low operation votlage. The differential value of the said operation voltage is divided for N times according to the relationship between the operation voltage changing differential value tolerated by CPU and the differential value of high-low operation voltage. The CPU present operation voltage switches successively in order to regulate the present operation voltage of CPU as the new operation voltage of CPU with N times switching by using the operation voltage chnaging differential value tolerated by CPU as the unit. The method uses the software to solve the unstable signal problem with out needed additino of hardware cost.

The invention provides a high-quality methanol extraction water deacidification agent prepared by an etherification preparation process and a preparation method of the methanol extraction water deacidification agent. The deacidification agent is prepared by carrying out chlorination reaction and amination reaction on a polymer ball matrix prepared by copolymerizing styrene, trifluoroethyl methacrylate and a divinyl benzene monomer. The etherification reaction methanol extraction water deacidification agent has excellent deacidification application performance, can prevent the pH value of the deacidification liquid from fluctuating and floating, overcomes the damage to the performance and the service cycle of the catalyst in the recovery cycle, and eliminates the potential safety hazard of equipment operation.

The invention relates to the field of pressure plate processing and production, in particular to an automatic transferring and conveying system for edge sealing of a pressure plate. The automatic transferring and conveying system for edge sealing of the pressure plate comprises a conveying table, the conveying table comprises a first sliding rail and a linear driving device, and the first sliding rail is arranged on the conveying table; the system further comprises a product supporting seat and a rotation control assembly, and the product supporting seat is installed on the conveying table and connected with the driving end of the linear driving device; the rotation control assembly comprises a main shaft, a rotating gear, a first mounting seat and a rack; the lower end of the main shaft is rotatably installed on the conveying table, and the upper end of the main shaft is fixedly connected with the product supporting seat; the rotating gear is fixedly connected to the main shaft in a sleeving manner; the first mounting seat is mounted on the conveying table; and the rack is fixedly mounted on the first mounting seat. According to the scheme, the conveying table, the product supporting seat and the rotation control assembly are used for conveying the pressure plate, and edge sealing of straight edges and arc-shaped edges is completed through one-time conveying.

The invention relates to the technical field of wind power generation, in particular to a fan tower tube connecting structure and a construction method thereof. The fan tower tube connecting structurecomprises an upper tower tube, a lower tower tube connected with the upper tower tube, and a clamping device; an upper flange is arranged at the junction of the upper tower tube and the lower tower tube, and the lower tower tube is provided with a lower flange connected with the upper flange at the junction; the clamping device can tighten the upper flange and the lower flange together; and the upper flange and / or the lower flange is provided with a first magnetic attraction part, and the clamping device is provided with a second magnetic attraction part connected with the first magnetic attraction part. Through arrangement of the clamping device, the technical problem that the strength of the junction of the upper fan tower tube and the lower fan tower tube is insufficient is solved, andthe strength of the junction is improved; and through cooperative arrangement of the first magnetic attraction part and the second magnetic attraction part, the technical problems that the strength of the junction of the upper fan tower tube and the lower fan tower tube is insufficient and the clamping device is not prone to being aligned at the upper flange and the lower flange during mounting are further effectively solved, and the strength of the junction is effectively improved.

The present invention provides a method and device for displaying wallpaper, wherein the method includes: when receiving a custom instruction for wallpaper, starting a wallpaper carousel service of the system, wherein the system authority of the wallpaper carousel service does not belong to the background application cleaning authority; obtaining For multiple wallpapers to be played, draw the switching entry display parameters corresponding to each wallpaper according to the preset rendering algorithm in the wallpaper carousel service, and set the switching time between the wallpapers; when monitoring the arrival of the switching time, obtain the The displayed target wallpaper, query the switch approach display parameters; obtain the target approach display parameters corresponding to the target wallpaper, and switch the target wallpaper according to the target approach display parameters. Thereby, the technical problems in the prior art that a black screen will appear in the middle of the wallpaper switching during the wallpaper carousel and the instability of the carousel service caused by the easy cleaning of the wallpaper carousel by the user in the prior art are solved.

The invention discloses a preparation method of a silymarin skin care product. The preparation method comprises the following steps: dissolving the silymarin and meglumine in absolute ethyl alcohol, heating the mixture and then recovering the absolute ethyl alcohol, thereby obtaining a silymarin-meglumine raw material; and evenly mixing the silymarin-meglumine raw material with deionized water, placing the mixture in a stirrer, stirring the mixture, adding gelatin and glycerol, further stirring the mixture, adding sodium benzoate and carrying out an ultrasonic processing, thereby obtaining thedesired silymarin skin care product. The invention solves the defects that the traditional preparation method directly adopts the silymarin to prepare related skin care products, resulting in excessive facial skin grease and pore blockage after long-term use; and the silymarin-meglumine and the sodium benzoate are uniformly distributed in other matrixes by ultrasonic even-mixing technology, and the silymarin-meglumine can not be decomposed or damaged.

The embodiment of the invention discloses a multi-stage hydraulic multiplying pulley vertical lifting platform fire truck, which belongs to the technical field of fire fighting and rescue equipment, and includes a car chassis, the tail of the car chassis is hingedly equipped with a telescopic arm, and the top end of the telescopic arm is A slewing platform is provided, and a working arm is installed on the slewing platform, and a working bucket is installed on a section of the working arm; Front hydraulic outriggers are installed on the left and right sides, and rear hydraulic outriggers are installed on the left and right sides of the telescopic arm away from the cab of the car. The chassis of the car is provided with an auxiliary support oil cylinder. Each is equipped with a transitional hydraulic cylinder. The invention solves the technical problems that the maximum rescue radius of the existing high-altitude fire truck is small, and the maximum rescue height is greatly limited by the transmission form of the hydraulic oil cylinder, and is widely used in high-altitude fire fighting or rescue.

The invention provides a vilanterol triphenylacetate inhalation solution as well as a preparation method and application thereof. The inhalation solution comprises an active substance, a solvent and an auxiliary material. The single-dose specification of the inhalation solution is 1ml, and the single-dose specification comprises an active substance which is 15-50mu g / mL vilanterol trifenatate and / or a hydrate of vilanterol trifenatate; and the solvent is sterile injection water, the auxiliary material comprises an osmotic pressure regulator and a pH regulator, the concentration of the osmotic pressure regulator is 5-9 mg / ml, and the pH regulator is added to enable the pH value of the inhalation solution preparation to be 5.0-7.0. The solution provided by the invention adopts single-dose packaging, is not added with preservatives, is safe and convenient to use, is used in combination with a liquid atomizer, and can provide a safe, effective and good-stability vilanterol trifenatate pharmaceutical dosage form for inhalation and a drug delivery system.

The invention discloses a rockery stone connecting piece and a method for realizing the arched modeling of a rockery, and belongs to the field of landscape engineering design. The rockery stone connecting piece comprises a first clamping piece, wherein a circular groove is formed in the outer surface of the top of the first clamping piece, and a first clamping column is arranged on the outer surface of the bottom of the first clamping piece. The rockery stone connecting piece further comprises a second clamping piece, an inserting part which is connected with the circular groove in a matchingmode is arranged on the outer surface of the bottom of the second clamping piece, a second clamping column is arranged on the outer surface of the top of the second clamping piece, and the two ends ofthe rockery stone connecting piece are embedded into two adjacent rockery stones correspondingly, a traditional technology of bonding stones by cement alone is replaced, the influence of northern climate on the rockery modeling is overcome, and the technical problem of unstable rockery modeling caused by cement cracking is effectively solved.

The invention relates to treatment equipment, in particular to a jaw anti-skid treatment device for a mechanical arm in the field of intelligent manufacturing. The jaw anti-skid treatment device comprises: grabbing assemblies, wherein the plurality of grabbing assemblies are arranged in a central symmetry mode, each grabbing assembly comprises a mechanical arm, a driving box, a fixed rotating shaft, a first connecting rod, a second connecting rod, a first sliding rail, a first sliding block and a clamping jaw, the mechanical arm is rotatably mounted on a rack, the driving box is fixedly installed on the mechanical arm, the fixed rotating shaft is fixedly installed on the driving box, the first end of the first connecting rod is hinged to the fixed rotating shaft, the first end of the second connecting rod is hinged to the second end of the first connecting rod, the first sliding rail is arranged at the bottom end of the driving box, the first sliding block is slidably installed on the first sliding rail, the top end of the first sliding block is hinged to the second end of the second connecting rod; and a driving assembly, wherein the driving assembly comprises a linear driving assembly, and the linear driving assembly is fixedly arranged in the driving box. According to the scheme, the technical problem that a mechanical arm jaw is unstable in workpiece clamping is solved.

The invention provides an edge flanging structure for a metal bipolar plate of a fuel cell. The structure comprises a cathode plate, an anode plate, a supporting area (1) and a sealing area (2), the cathode plate lower section (6) is tightly connected with the anode plate lower section (3); the sealing area (2) wraps the cathode plate lower section (6) and the anode plate lower section (3); the anode plate middle section (4) and the cathode plate middle section (7) wrap the supporting area (1), the anode plate upper section (3) and the cathode plate upper section (8) are perpendicular to the supporting area (1), and one end of the anode plate upper section (5) is bent outwards in the direction perpendicular to the anode plate upper section (5) and extends to form an anode plate bent part (51). One end of the cathode plate upper section (8) is bent outwards in the direction perpendicular to the cathode plate upper section (8) and extends to form a cathode plate bent part (81). The invention has the beneficial effects of high reliability and high insulation effect.