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 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 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 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.

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 embodiment of the invention discloses an intelligent lifting table height adjusting method and device, an intelligent lifting table and a storage medium. The method comprises the following steps that when a height adjusting instruction of the intelligent lifting table is detected, a stand image of a user collected by a camera device is obtained; the stand image is subjected to image recognition to obtain height data of the user; and corresponding intelligent lifting table adjusting parameters are determined based on the height data, and height of the intelligent lifting table is adjusted according to the intelligent lifting table adjusting table parameters. Height adjusting efficiency of the intelligent lifting table is improved, complex operation of the user is not required, and the intelligent level is high.

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 low-cycle reciprocating test device for a concrete member. The device comprises a concrete test piece, a clamp and bases, wherein the bases are cushioned under the two ends of the concrete test piece, rigid supports are arranged on the two sides of the bases, a distribution beam is arranged in the middle of the concrete test piece, a lower steel sheet is arranged under the middle of the concrete test piece, the distribution beam is connected with the lower steel sheet through second screw rods, and first anchorage devices are arranged among the distribution beam, theconcrete test piece and the lower steel sheet. The low-cycle reciprocating test device disclosed by the invention has the advantages that the low-cycle reciprocating test device for the concrete member is more convenient to use and requires no complicated operation; in the loading process, the clamp and the distribution beam as a partial whole are connected with an upper structure, and the bases and the rigid supports as a partial whole are connected with a ground anchor, so that the stability outside of the plane of the concrete test piece is maintained, the lateral turnover is avoided, and the test safety is improved.

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 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.