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 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 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 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 support, an electronic device protection shell and an electronic device combination. The support comprises a rotary connecting piece, a first fixing structure and a second fixing structure, wherein the rotary connecting piece comprises N connecting shafts and M fixing seats, two adjacent fixing seats among the M fixing seats are connected through one connecting shaft among the N connecting shafts, N is an integer which is greater than or equal to 2, M is an integer which is greater than or equal to 3, and a difference value between M and N is 1; a first supporting main body is formed in a way that K fixing seats are fixedly arranged on the first fixing structure, and K is an integer which is greater than or equal to 1; a second supporting main body is formed in a way that J fixing seats are fixedly arranged on the second fixing structure, J is an integer which is greater than or equal to 1, and K+J=M; the first supporting main body and the second supporting main body can do relative rotation along the N connecting shafts. According to the support disclosed by the invention, the technical problem in the prior art that a supporting structure which is used for supporting an electronic device is instable is solved, and the stability of the supporting structure is increased.

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.

Embodiments of the present invention disclose a method and an apparatus for controlling a playing apparatus. The method comprises: acquiring a current control state of a set item upon receiving a control request of the set item of the playing apparatus from a current intelligent terminal; based on the current control state, controlling the set item according to the control request. The technical scheme provided by the embodiments of the invention solves the technical problems of disorder of speaker operation and unstable control display interfaces, corresponding to the set item, on intelligent terminals when the plurality of intelligent terminals control the same speaker at the same time in the prior art, optimizes existing playing device controlling technology and realizes reasonable control of the playing device.

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 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 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.