138results about How to "No complicated operations" patented technology

The invention discloses a catalyst system for ethylene polymerization, comprising three components a, b and c. The component a is a pyridine diimine ligand with a structural formula (I) or a structural formula (II); the component b is an acetylacetone salt compound; the component c is an aid catalyst; a mol ratio of the component b to the component a is (0.01-100):1; and a mol ratio of the component c to the component b is (10-10,000):1. The invention also discloses the applications of the catalyst system in the preparation of single-peak distributed polyethylene, double-peak distributed polyethylene, polyethylene with super high molecular weight and an ethylene oligomer by the ethylene polymerization.

The invention provides a method used for preparing pre-alloy powder used for nanometer dispersion enhanced metal, belonging to the field of metal dispersion enhancement. Nitrate mixture containing basal body and disperse phase metal ion is dissolved in citric acid aqueous solution of a certain consistency; the pH value of the solution and adding quantity of the dispersant are controlled; the solution is arranged in a water-bath boiler and heated with constant temperature so as to vaporize the water and be matched with the reaction to gain sol; after the sol is formed, the sol is arranged in a drying box and dried to gain xerogel; subsequently, the xerogel is baked in a muffle furnace so as to gain ultra-fine oxide mixed powder; the gained mixture is selectively reduced in hydrogen flow (the disperse phase oxide is generally a ceramic-typed metal oxide and can not be reduced by hydrogen under general conditions) so as to gain the pre-alloy powder which is gained by uniform mixing of nanometer oxide grains and nanometer-based metal grains; the pre-alloy powder is pressed and sintered to gain the product with excellent performance. The method has the advantages that in the prepared pre-alloy powder, the disperse phase oxide has small dimension and good forming performance; the disperse phase has uniform distribution; furthermore, the process control is simple and the cost is low.

The invention relates to a microfluidic chip, a manual centrifuging device and a nucleic acid detection method. The microfluidic chip comprises at least one sample adding layer and a channel layer arranged at the lower side of the sample adding layer, wherein the upper surface of the channel layer is provided with a plurality of test units which are in centered distribution and are used for loading a to-be-tested reagent and transmitting the to-be-tested reagent to a chamber; each test unit comprises at least two chambers which are interconnected through a channel; and a plurality of sample adding holes corresponding to the channel layer are arranged along the central circumference of the sample adding layer for injection of a reagent into one of the chambers of a corresponding test unit.The manual centrifuging device provided by the invention is a portable device which does not rely on an external power supply, integrates nucleic acid extraction, amplification and detection by utilizing a microfluidic chip technology, realizes rapid and convenient nucleic acid analysis, and is used for rapid response and field diagnosis of emergencies like large-scale infectious diseases, food safely affairs and environmental pollution accidents.

The invention discloses a water-based antirust agent and a preparation method thereof. The water-based antirust agent is prepared from silicate, organic alkali, boric acid and / or boric acid ester, a complexing agent, tungstate, orthosilicate ester and a surface active agent. The raw material source is wide, the preparation method is simple, the production cost is low, the rust-proof effect is good, and the effect duration is long.

The invention relates to an independent encryption based network information safe input system. The system comprises a safe input method client end and a safe input method server end. The safe input method client end comprises an input method module and a content encryption and decryption module. The safe input method server end comprises a business show module, a business service module and a data access module, and a safe input method. The input method is not bound with a third-party application, so that the input method and the third-party application are separated but cooperate with each other. Information that the user needs to encrypt can be encrypted flexibly, namely, a certain passage of dialogue or key content can be encrypted; the user can encrypt and decrypt the information conveniently without through complicated operation; and information and a secret key are managed and transmitted through independent channels, thereby guaranteeing safe transmission of the information.

The invention relates to an all solid-state angular momentum tunable laser device with stable pulse energy. The all solid-state angular momentum tunable laser device comprises a pumping source, an optical coupling system, a resonant cavity, a solid laser medium and a saturable absorber; the pumping source is a semiconductor laser diode; the solid laser medium is a doped laser material Nd: YAG or Nd: YVO4; the saturable absorber is a Cr: YAG or GaAs crystal; and the resonant cavity consists of an input mirror and an output mirror or consists of a coating film on the incident surface of the solid laser medium and a coating film on an emergent surface of the saturable absorber. Laser output by the laser device provided by the invention is pulse laser with fixed energy and further has an optical angular momentum, and the continuous change of the angular momentum can be realized through altering the power of pump light. The laser device provided by the invention can be used for aspects such as optical communication, cold atom trapping, dynamic optical storage, and quantum computation. The tunable laser device is low in cost, small in size, stable in energy, high in peak power and tunable in the angular momentum and is flexible to adjust.

The invention discloses a distributed server cluster configuration method based on Raft. The method comprises the steps: configuring cluster nodes, partitioning each cluster node, and modifying the state of the whole server cluster, so that the leader node of the network partition sends the request of the client to other follower nodes of the network partition; when the follower node executes theoperation included in the request of the client in the local database, enabling the follower node to send the request to the client; sending a response to the leader node of the corresponding networkpartition, when the leader node receives the response of the corresponding network partition follower node, enabling the leader node to send the response to the network partition follower node; and setting the request of the client to be in a submission state. In addition, if the follower node does not receive the heartbeat detection information sent by the leader node within the election timeouttime, the leader node sends the heartbeat detection information to the leader node; if so, the follower node becomes a candidate node, the candidate node becomes a new leader node of the network partition according to a corresponding rule, and the period number is updated to realize configuration of the corresponding distributed server cluster.

The invention discloses a preparation method for a fluoride-free, non-toxic, economic and efficient aluminium-based superhydrophobic material. The preparation method comprises the following steps: stably obtaining a micrometer-nanometer binary composite graded structure from aluminium and aluminium alloy through simple hydrochloric acid etching and water boiling sequentially; spin-coating a layer of fluoride-free, non-toxic and cheap polydimethylsiloxane solution on the micrometer-nanometer graded aluminium-based surface by virtue of a spin-coating method, curing and then forming an organic film layer, and thus achieving a superhydrophobic surface having a contact angle of 158 degrees with water and having a rolling angle of 2 degrees. The superhydrophobic surface is superhydrophobic with strong acid and strong base, and has high lasting stability due to the protection effect of the organic film layer. The superhydrophobic surface disclosed by the invention has the characteristics of being fluoride-free, non-toxic, simple and convenient to operate, economic and efficient.

The invention discloses a hepatocyte serum-free culture medium. The hepatocyte serum-free culture medium comprises the following components: 500mL of basal culture medium, 0.05-0.5% of sericin protein, 0.1-1000nmol / mL of dexamethasone, 5-20ng.mL of hepatocyte growth factors, 10-50ng / mL of epidermal growth factors and 100U / mL of mycillin. The hepatocyte serum-free culture medium is suitable for growth and function exertion of hepatocyte, and can be used for preparing biological type artificial livers.

The invention discloses a method and a device for enriching anaerobic ammonium oxidizing bacteria based on modified basalt fiber filler, and belongs to the technical field of sewage biological treatment. The method is characterized by comprising the following steps: S1, starting a system, mixing nitrified sludge with anaerobic ammonium oxidized sludge, then adding the mixed sludge into a reactor filled with modified basalt fibers, and mixing the sludge thoroughly; S2, in an initial stage of culturing, sending matrix raw water into the reactor; at the same time, turning on circulating water forcircular flow; and S3, in a logarithmic growth phase, controlling the water inlet speed of the raw water matrix for continuous rapid enrichment culturing of the anaerobic ammonium oxidizing bacteria.By adopting the method for enriching the anaerobic ammonium oxidizing bacteria provided by the invention, the generation cycle of the anaerobic ammonium oxidizing bacteria can be effectively shortened, high-activity proliferation in a short time can be realized, effective enrichment culturing of the anaerobic ammonium oxidizing bacteria can be implemented, and a foundation is laid for the engineering application of the novel biological denitrification technology.

The embodiment of the application discloses an intelligent lifting table height regulation method and device, an intelligent lifting table and a storage medium. The method comprises the steps of: whendetecting a height regulation instruction of the intelligent lifting table, acquiring sitting posture image data of a user, which is acquired by a camera, wherein the height regulation instruction istriggered when detecting that the user is in a sitting posture; sending the sitting posture image data to a cloud server for enabling the cloud server to determine a corresponding intelligent liftingtable regulation parameter according to the sitting posture image data; and receiving the intelligent lifting table regulation parameter which is sent by the cloud server and corresponds to the sitting posture image data, and according to the intelligent lifting table regulation parameter, carrying out regulation on a height of the intelligent lifting table. According to the scheme, height regulation efficiency of the intelligent lifting table is improved, the user does not need to carry out a complex operation, and the intelligence degree is high.

The present invention discloses an aerogel ball and a preparation method thereof. The preparation method comprises: uniformly mixing an aerogel powder material, an aqueous binder and an additive capable or incapable of selectively being added to prepare an aerogel slurry; uniformly dropping the aerogel slurry on a carrying table formed by mainly and uniformly paving the aerogel powder material so as to form small aerogel balls; and drying the small aerogel balls to obtain the aerogel ball. According to the present invention, the aerogel preparation process is simple, the complex operation is not required, the condition is mild, the method can be performed with the common equipment, the cost is low, the large scale production is easily achieved, and the obtained aerogel bass has advantages of nano-scale continuous pore structure, low density, high specific surface area, uniform mesopore distribution, wide application prospect, and the like.

The invention discloses a system and a method for monitoring the surface-pollution electrical conductivity of an insulator. The system comprises a measuring unit, a data-acquiring unit, a data-processing unit and a computer, wherein the measuring unit, the data-acquiring unit, the data-processing unit and the computer are sequentially connected, the measuring unit, the data-acquiring unit and the data-processing unit are connected by adopting leads, and the data-processing unit is connected with the computer through a wireless communication network. The method comprises the following steps of obtaining a signal-source voltage signal and a fixed-resistor voltage signal from the measuring unit, obtaining the phase-angle difference of the two signals through respectively processing the two signals by the data-processing unit, and obtaining the electrical conductivity through the phase-angle difference. The system is a new system for monitoring the surface-pollution electrical conductivity of the insulator and has the advantages of simple measuring process and result accuracy and reliability.

An easy-to-use and user-friendly apparatus disclosed herein displays motivation for exercise to a user to allow the user to continue comfortably exercise. An audio signal output processor 31 reproduces audio data and a music sound is thus emitted from a loudspeaker 32. The user practices exercise, such as walking or jogging, in synchronization with the tempo of the music sound. At the start of exercise, an exercise information analyzer 23 calculates an amount of exercise of the user based on personal profile information relating to the body of the user, including the body weight, the body height, age and sex of the user received via a keyboard 41, and characteristic information, such as play time and tempo of reproduced music data acquired via a communication I / F 61 and a controller 10. The controller 10 outputs the amount of exercise to a display 34 to notify the user of the amount of exercise.

The invention discloses a face identification security mobile phone and an implementation method thereof. The mobile phone comprises a shell, a main board, a base band processing unit, a memory module and a face identification module, wherein the face identification module is connected with the base band processing unit. The method sequentially comprises the steps: 1) inputting and memorizing a face image; 2) extracting and memorizing face characteristic data; and 3) comparing with the face characteristic data and transmitting a control signal according to a comparison result. The face identification security mobile phone and the implementation method thereof are high in reliability, so that a user can be guaranteed to smoothly pass the identification. The invention is combined with the functions such as mobile phone unlocking, address list, file information and the like, so that the privacy and the commerce security of the user can be effectively guaranteed.

An embodiment of the present application discloses an intelligent lifting table interface control method and device, an intelligent lifting table and a storage medium. The method includes displaying an adjustment control interface when an adjustment instruction of the intelligent lifting table is detected; obtaining input user characteristic information, generating adjustment parameters accordingto the characteristic information and filling the preset area of the adjustment control interface; adjusting the intelligent lifting table adjusted according to the adjustment parameters, and the adjustment control interface displays a virtual image of the intelligent lifting table in real time. The scheme improves the height adjustment efficiency of the intelligent lifting table, does not requirecomplicated operation by a user, and has high intelligence.

The invention discloses a method for preparing nano aluminum oxide dispersion iron powder, which belongs to the technical field of metal dispersion strengthening. The method comprises the following steps of: firstly, preparing mixed solution of ferric nitrate and aluminum nitrate in certain proportion; secondly, adding a proper amount of urea into the solution; thirdly, when the urea is completely dissolved in the solution, heating the solution to the temperature of between 70 and 90 DEG C with stirring to perform a reaction for a certain period of time; fourthly, performing centrifugal separation on an obtained product, putting the product obtained after removing clear solution in a drying box, and drying the product at the temperature of between 80 and 100 DEG C; and finally, calcining the product in a muffle furnace at the temperature of between 500 and 700 DEG C to obtain superfine oxide mixed powder. The method has the advantages that: a precipitating agent in the solution is obtained through urea decomposition to ensure that a precipitation reaction in the solution is performed uniformly; the nucleation rate and the reaction rate of particles can be controlled to obtain nano-particles; the mixed powder which is uniformly mixed and has high dispersibility and fine particle size can be prepared; and the method is easy to apply and popularize.

The invention discloses a gas-phase rust inhibitor and a slow release gas-phase rust inhibiting film box containing the same. The gas-phase rust inhibitor comprises rust inhibiting components, polyvinyl alcohol and solvent wit a weight ratio of (60-70): (10-20): (10-20); and the rust inhibiting components comprise 40-50 parts of first aliphatic amino acid, 20-25 parts of organic amine, 5-10 parts of second amino acid alkyl ester, and 5-20 parts of benzoate. A gas-phase rust inhibiting diaphragm with a slow release function of the film box is matched with the gas-phase rust inhibitor for use; the volatile gas-phase rust inhibiting components are slowly and uniformly volatilized, and can be slowly corroded permanently; on the basis of guaranteeing the rust inhibition, the life of the film box is further prolonged through the diaphragm, and the medicine change frequency is reduced; and the film box is simple in shape, and can be recycled.

The invention discloses a groundwater flow direction and velocity monitoring device and method. The device comprises a first underwater detector shell and a second underwater detector shell, wherein the first underwater detector shell and the second underwater detector shell are connected through a connecting rod; a vibration motor and a backlight lamp are sequentially arranged in the first underwater detector shell from bottom to top; a first sapphire glass window and a pressure temperature sensor are arranged at the top of the first underwater detector shell; the backlight lamp is located under the first sapphire glass window; a second sapphire glass window is arranged at the bottom of the second underwater detector shell; a micro-lens, a camera, a central processing unit, an electroniccompass, a serial communication module and a power supply module are sequentially arranged from bottom to top in the second underwater detector shell; and the serial communication module is connectedwith a ground controller. According to the monitoring device and method, the direction of water flow is shot through the camera, the flow direction and velocity of groundwater are accurately monitoredin real time, water depth and temperature data of a monitoring position are acquired at the same time, and complex operation is not needed.

The invention discloses a comprehensive test device and method for rapid solidification heat transfer performance. The comprehensive test device comprises a metal smelting system, a particle size andspeed control system and a sample collection and measurement system; the metal smelting system comprises a graphite crucible and an infrared thermometer with temperature feedback and is used for heating a metal test sample into liquid; the particle size and speed control system comprises a particle size selector used for controlling dropping size of molten metal droplets and a static electric field used for controlling dropping speed of the molten metal droplets; the sample collection and measurement system comprises a cooling base, a high-speed camera, a thermocouple and a computer and is used for bearing and cooling the metal droplets dropped from the metal smelting system and acquiring data. By the arrangement, low cost and less consumption of materials are achieved, the test method issimple in operation, test results are accurate, initial solidification conditions of the metal droplets in different dropping states (dropping size and dropping speed) can be tested comprehensively, the entire rapid solidification process can be reflected clearly, and high persuasion is achieved.

The invention provides a nearby emergency oil containment boom for ship body damaged oil spillage. The nearby emergency oil containment boom comprises two parts, namely a self-inflating oil containment boom main body and electromagnetic absorption type ship body connectors. The self-inflating oil containment boom main body is composed of a plurality of oil containment boom units of a hard structure; for storage, various units can be folded mutually to occupy a tiny space and thus can be readily carried on a ship to cope with emergencies. The self-inflating oil containment boom main body is connected with fast joints of two electromagnetic absorption type ship body connectors through fast joints on the two ends of the self-inflating oil containment boom main body, respectively; the two connectors are fixed in appropriate positions on the two sides of a ship body damaged position. In case of a ship accident, the nearby emergency oil containment boom for ship body damaged oil spillage is capable of quickly containing a water surface within a nearby distance range of the ship body damaged position; in case of oil spillage, oil spillage can be contained within a small distance range nearby the ship body. The nearby emergency oil containment boom for ship body damaged oil spillage can be laid in two manners: one is a conventional stretching laying manner, while the other one is a semi-folding oil containment boom unit stretchable laying manner.

The invention discloses a device and method capable of accurately adjusting and measuring the length of a ring head screw telescopic rod. The device comprises a base (11), a handle (16), a linear sliding rail (14), a first sliding table, a second sliding table, a limiting mechanism (15), a first threaded supporting column (12), a locking nut (13) and a driving mechanism of the second sliding table. A boss is arranged at one end of the base (11), and the first threaded supporting column (12) is installed on the boss at one end of the base (11). The first sliding table is used for locking another end of a tested ring head screw telescopic rod. The second sliding table is arranged between the boss at one end of the base (11) and the first sliding table. The second sliding table is matched with a middle part of the tested ring head screw telescopic rod and can drive the tested ring head screw telescopic rod to rotate. The driving mechanism of the second sliding table is arranged on the base (11) and is connected with the second sliding table, so that the second sliding table moves along the linear sliding rail (14), and the problems of length measurement and adjustment are solved.

The invention provides health care tea for aiding digestion and preventing halitosis as well as a preparation method and application of the health care tea. The health care tea provided by the invention takes components including herba taraxaci, syringa oblate leaves, herba menthae, folium perillae, herba pogostemonis, fructus crataegi, osmanthus flowers, flos lonicerae, rhizoma phragmitis, semen coicis, radix glycyrrhizae and green tea as main raw materials, can have good effect of aiding digestion without generating irritation or having side effect at the same time, has good preventing and treatment effect to the halitosis caused by etiologies of dyspepsia and the like and can be further used for preparing corresponding health products or drugs. Meanwhile, the preparation method provided by the invention has convenient and simple steps, is simple to operate and is suitable for large scale production.

The invention discloses a screen brightness adjustment method and device, applied to an intelligent terminal of which the lower part of the screen is provided with an infrared sensor array consisting of multiple infrared sensors. The device comprises a detection module, a matching module, a track recording module, a track synthesis module and a brightness adjustment module, wherein the detection module is used for real-timely detecting the fingers of a user close to an effective range of the terminal screen and obtaining the fingerprint information of the fingers through the infrared sensors; the matching module is used for matching the fingerprint information with preset fingerprints; the track recording module is used for setting track identification values of the infrared sensors that obtain the fingerprint information as preset values when the fingerprint information is successfully matched; the track synthesis module is used for collecting all the infrared sensors of which the track identification values are the preset values to obtain a moving track of the fingers; and the brightness adjustment module is used for adjusting the brightness of the terminal screen based on a preset rule when the moving track of the fingers is matched with a preset track template. Thereby, the user can adjust the brightness of the screen only through a remote finger sliding operation, no complex operation is required, and the operating speed and the experience degree of the user can be increased.

The invention discloses an LAMP primer group for detecting porcine circovirus type 3, a kit and application. The primer group contains a primer group with nucleotide sequences shown in SEQ ID NO.1-6.The kit comprises the primer group and a reaction reagent. An application method of the kit comprises the following steps: firstly preparing a cross primer amplification reaction system; and carryingout isothermal reaction, and directly interpreting the obtained products with naked eyes, wherein a positive result is yellow, and a negative result is red. The kit disclosed by the invention is simple to operate, low in cost, rapid in reaction and good in specificity, and results can be easily observed, so that the kit is especially applicable to field detection of export quarantine, food hygieneand livestock farms.

The invention provides a silicon-based covalent organic framework photoelectrode and a preparation method and application thereof. The silicon-based covalent organic framework photoelectrode comprises a silicon substrate, and an electron conduction layer, a covalent organic framework layer and an electron mediator layer which are sequentially arranged on one side of the silicon substrate from bottom to top. According to the invention, the electron mediator is fixed on the covalent organic framework layer in a mode of forming coordinate bonds, electron transfer between the electron mediator and the covalent organic framework layer can be greatly promoted, and meanwhile, the photoelectrode is constructed into a stacked arrangement structure, so that efficient transfer of electrons between layers can be promoted; and finally, the electron transfer efficiency between the electron mediator and the silicon substrate is improved, and in-situ recovery and utilization of the electron mediator are realized. By means of the photoelectrode, the catalytic activity of photoelectrochemical coenzyme NAD (P) H regeneration can be effectively improved, meanwhile, the preparation method is simple and convenient, complex operation is not needed, and large-scale application in industrial production is facilitated.