260results about How to "Sensitive operation" patented technology

The invention relates to a photoelectric light-guide switch module controlling and adjusting photoelectric signals to be input into a device. According to the invention, an SMD IR tube and an SMD PT tube are adopted as an optical signal transmitting and receiving device. A light guide tube or an optical fiber structure is utilized for realizing the switching off and switching on of the photoelectric switch and the precise control of intensity of the photoelectric signals. The photoelectric light guide switch module includes a cross-shaped mechanical shaft, a spring and an upper shell and a lower shell having a buckling lock structure. The switch module also includes the SMD IR tube, a coupling component, a light guide tube or an optical fiber, a focusing part, the SMD PT tube and a prism, a light gate or other switch control components in linkage with a mechanical key shaft. According to the invention, the switching on and off of the photoelectric switch can be realized through moving the switch control component relative to the light guide tube or the optical fiber. Also, linear control of photoelectric signals is realized and game players can feel speed and power in game operation. The switch module is especially suitable for game players.

The invention discloses an anti-rabies virus monoclonal antibody and a preparation method and an application, belonging to the field of biomedicine and particularly relating to the preparation of a monoclonal antibody capable of identifying rabies virus and the application. The monoclonal antibody of the invention is screened by indirect Enzyme-linked immunosorbent assay (ELISA), and specificity and affinity thereof combined with antigen are identified by methods such as polyacrylamide gel electrophoresis analysis, speckle ELISA, immunoblot analysis and the like. The anti-rabies virus monoclonal antibody of the invention can be applied in multiple testing methods of antigen of rabies virus and can be also applied in the preparation of rabies virus detecting kit. The anti-rabies virus monoclonal antibody is secreted by anti-rabies virus monoclonal antibody hybridoma cell strain 2C5 with the preservation number being CGMCC No.3014.

The invention provides a portable copper ion concentration detection method based on click chemistry and belongs to the field of analytical chemistry. Under the condition that sodium ascorbate reduces cupric into cuprous as a catalyst, a 1,3-dipole cycloaddition reaction is carried out between NDA modified with an azide group and DNA modified with an alkynyl group, so that DNA modified with cane sugar invertase is fixed on magnetic beads; The magnetic beads are separated from a solution, the cleaned magnetic beads are dissolved into a cane sugar solution to carry out enzymatic hydrolysis, and then a reaction solution after enzymatic hydrolysis is measured by adopting a blood glucose meter, so that copper ion concentration can be detected. The portable copper ion concentration detection method provided by the invention takes the blood glucose meter as a platform and can portably and quickly detect the copper ion concentration on site; and the portable copper ion concentration detection method can be applied to copper ion detection in a human body serum sample, and the portable copper ion concentration detection method has the advantages of easy operation, low cost, high sensitivity and good specificity.

Systems and methods are disclosed which provide aggressively sculpted or shaped antenna beams, such as sector antenna beams, for use in communication networks. Preferred embodiments use passive antenna feed networks, preferably configured as personality modules, which are adapted for corresponding topological and morphological features. Preferred embodiment feed networks may be coupled to linear or curvilinear antenna arrays to provide antenna beams having a desired contour. Using the disclosed systems and methods path loss variance is minimized for improved system capacity and/or signal quality. Moreover, the disclosed systems and methods provide for reduced average transmission power levels further allowing increased capacity and/or signal quality.

The invention provides an electrochemical aptamer sensor for detecting dopamine (DA). The preparation method of the electrochemical aptamer sensor comprises the following steps: modifying the prepared polyamidoamine dendrimer-gold nanoparticles (PAMAM-GNPs) compound and nickel hexacyanoferrate nanoparticles (NiHCFNPs) to the electrode surface by utilizing the electrode surface modification technology, then carrying out electro-deposition on one layer of gold nanoparticles, modifying on the electrode surface, modifying amino group to the tail end of the DA connected with an aptamer, modifying the amino group on the electrode surface by affinity of the gold nanoparticles and the amino group, and finally, combining one layer of DA to be detected outside the aptamer, thereby preparing the electrochemical aptamer sensor. The prepared electrochemical aptamer sensor used as a working electrode is connected to an electrochemical workstation, an electrochemical signal changes before and after DA connection, and the change of the electrochemical signal is utilized to detect the DA. The prepared molecularly imprinted electrochemical sensor has strong selectivity and high sensitivity, is simple and rapid to operate and is suitable for DA detection.

The invention provides a competitive type aptamer sensor for detecting oxytetracycline (OTC) in food. By using graphene oxide-polyaniline (GO-PANI) and horse radish peroxidase (HRP) as amplification strategies, the competitive type aptamer sensor is constructed for performing ultra-sensitive detection on the oxytetracycline (OTC). During construction, a GO-PANI film is dropwise added on the surface of a glassy carbon electrode, and a gold nano particle is deposited on the surface of the electrode through an electrochemical method. An OTC connection aptamer has high affinity and specificity to OTC, is connected with the OTC when being used as a capture probe, and is simultaneously connected with the HRP to form an HRP-Apt. A complete antigen (OTC-BSA (Bovine Serum Albumin)) as an immobilized antigen is connected with the surface of the electrode, and is combined with the HRP-Apt by competing with to-be-detected OTC which is added in later. The sensor connected with the HRP on the surface performs electrochemical measurement in a work solution containing HQ (Hydroquinone Quinol) and H2O2. The oxytetracycline (OTC) can be detected by using the change of an electrochemical signal. The competitive type aptamer sensor prepared by adopting the method is strong in selectivity, high in sensitivity, simple and rapid to operate, and suitable for detecting the oxytetracycline (OTC) in a food.

The invention relates to a device for detecting dynamic specific oxygen utilization rate (SOUR) of an activated sludge system, belongs to the theory and technique of strengthening biological denitrification treatment with an activated sludge process, and designs a set of on-line detection device for simultaneously feeding back the activated sludge specific oxygen utilization rate of SBR process by aiming at the problems of off-line measurement, hysteresis quality and unavailable on-line detection and feedback and the like existing in the traditional method for measuring the oxygen utilization rate. The system is most characterized in that a sealed recorder jar is put on a magnetic stirring apparatus and a sludge circulating loop is formed through a reflux pump and a reactor; sensors are dissolved oxygen sensors and two sensors are respectively put in the sealed recorder jar and an SBR reactor so as to be capable of realizing the on-line detection of SOUR and the simultaneous feedback. The device is concise in design, stable in operation and good in reproduction quality of measured data, and can accurately monitor the reactive states of the system at different time by intuitively representing the SOUR curve.

The invention discloses a full hydraulic automatic dung cleaning robot, and belongs to the technical field of dung cleaning mechanical equipment. According to the full hydraulic automatic dung cleaning robot, a front wheel is provided with a steering gear; the back of a base plate is connected with a crawler-type back wheel; the crawler-type back wheel is connected to a driving system and is driven by the driving system; the front end of the base plate is provided with a concave dung scraper; the dung scraper is provided with a hydraulic control system for controlling vertical movement; the front end on the upper part of the base plate is provided with a visualization system; the steering gear, the driving system, the hydraulic control system and the visualization system are connected to an electronic control system; and the electronic control system is in wireless signal transmission connection with a computer to realize remote control and monitoring within 200 meters. The full hydraulic automatic dung cleaning robot can remotely control to clean dung and monitor livestock in 24 hours, working conditions of livestock breeding managers are improved, a good environment for the growth of the livestock is created, diseases are reduced, the meat quality of the livestock is improved and the like.

The invention provides a homocysteine dry chemical detection strip and a preparation method thereof. The invention aims to provide a detection strip and a preparation method thereof for fast semiquantitatively/quantitatively detecting homocysteine. The strip is composed of an elongated upper support layer, an elongated lower support layer and test layers in the middle and is divided into a hand-held area and a test area. A diffusion layer, a filtration layer, an enzyme reagent layer and a colour development reagent layer are arranged in the test area from top to bottom. Various grid materials of synthetic fibre materials can be used to prepare the diffusion layer, various filterable materials for separating blood can be used to prepare the filtration layer, and various asymmetric synthetic membranes can be used to prepare the enzyme reagent layer and the colour development reagent layer. A loading hole is arranged in the upper support layer, a sample is sent from the loading pole to the diffusion layer, the sample then permeates into the filtration layer, the enzyme reagent layer and the colour development reagent layer, chemical reactions are performed in the enzyme reagent layer and the colour development reagent layer to change the colour, and the change of optical density in reaction process can be tested through a test pole of the lower support layer.

Disclosed are systems and methods which provide communication network antenna pattern configuration for optimized network operation. Preferably, a statistical smart antenna configuration is provided in which antenna patterns associated with various base stations of the communication network are configured to capitalize on the complex morphology and topology of the service area in providing optimized communications. Antenna patterns are preferably configured using merit based determinations, based upon link propagation conditions such as associated with the complex morphologies and topologies of the service area, to aggressively serve areas which are best served thereby while not serving areas which are best served by other network systems.

A lower-limb joint orthosis includes a lower component supporting the foot region, an upper component attached to the lower-limb, and an orthotic joint coupling both components. The orthotic joint comprises: a stator including some fluid chambers in which an MR fluid is enclosed; and a rotor including partition plates protruding into the respective fluid chambers. The stator includes a communication path between the anterior chamber and the posterior chamber. The rotor includes connection paths that connect the anterior chambers together, and connect the posterior chambers together. An electromagnet is placed on a side surface of the communication path so that a rotational resistance of the lower component and the upper component is adjusted by adjusting a magnetic force to control the viscosity of the MR fluid that flows through the communication path.

The invention discloses a portable method for detecting content of adenosine triphosphate (ATP). The method comprises the following steps of: respectively modifying a magnetic bead and invertase on an ATP aptamer which is split into two sections, performing specific identification and combination on the ATP aptamer which is split into two sections and a target ATP so as to form a sandwich structure, so that the aptamer modified with the invertase is fixed on the magnetic bead; separating the magnetic bead from the solution, dissolving the cleaned magnetic bead in a sucrose solution for carrying out an enzymatic hydrolysis reaction, measuring the reaction solution subjected to enzymatic hydrolysis by employing a glucometer, and indirectly detecting the concentration of ATP. The method is successfully applied to detection of the ATP concentration in a human serum sample, and the method has the advantages of simple operation, low cost, high sensitivity, high specificity and the like.

The invention relates to an immunodetection method of organophosphorus pesticide multi-residue in the technical field of pesticide detection, and the immunodetection method comprises the following steps: synthesizing an organophosphorus generic hapten, and coupling with protein to prepare an immunogen and a coating antigen; using the immunogen to perform animal immunization so as to get an organophosphorus pesticide generic antibody; synthesizing Fe3O4 magnetic nanoparticles and performing surface modification; coupling the Fe3O4 magnetic nanoparticles after surface modification with the organophosphorus pesticide generic antibody to form immune magnetic beads; adding a nitrocellulose membrane on a baseplate of a test strip, coating the immunogen prepared by coupling the organophosphorus generic hapten with the protein on the membrane, closing to form a detection part, and finally determining the optimal coating, the closing conditions and the using quantity of the immune magnetic beads; and performing qualitative and semi-quantitative detection. The detection method is simple and convenient to operate, sensitive and fast; large-scale instruments are not required; and the detection method is suitable for field sampling detection and large-batch detection tasks.

The invention provides a peanut combine and relates to the peanut combine of agricultural machinery. The peanut combine comprises a walking mechanism, a power output transmission system, a harvesting mechanism, a clamping and conveying mechanism, a soil compacting mechanism, a peanut stripping mechanism, a cleaning mechanism, a chain post hollow secondary cleaning and elevating mechanism and a peanut collecting and storing device. The peanut combine has the advantages that: a good grain lifting feeding effect is achieved due to the adoption of a conical grain lifter; a rocker soil compacting mechanism can compact most soil blocks carried by peanut roots; and the chain post hollow secondary cleaning and elevating mechanism can realize secondary cleaning and finish elevating collected peanuts and is matched with primary cleaning of a vibrating screen so as to achieve a more ideal cleaning effect. The peanut combine has the advantages of capability of finishing plowing harvesting, clamping conveying, soil compacting, peanut stripping, cleaning, secondary cleaning and elevating collection and storage at one time, scientific and reasonable overall structural design, small size, low construction cost, suitability for operation on various fields, sensitive self-walking and operation, high harvesting efficiency and suitability for large-area popularization.

The invention discloses an African swine fever virus fluorescent type RAA detecting kit which comprises specific primers ASFV-F and ASFV-R and an RAA-exo probe ASFV-P. The basic groups in a target amplification subsequence are substituted by tetrahydrofuran (THF residues), dT-fluorophore and dT-quenching groups, a marked reported fluorescent dye is FAM, a fluorescent quenching group is BHQ-1, splitting decomposition can be conducted on the probe at the THF site by exonuclease in an agent, the fluorescent group can be separated from the quenching groups, and fluorescent signals are generated. By means of the kit, at the constant temperature of 37-42 DEG C, the African swine fever virus is detected within 20 minutes, the specificity is 100%, and the detection sensitivity is 10 copies per microliter. Thus, the kit has the advantages of being simple, rapid and sensitive in operation and provides effective technological means for on-site rapid detecting and screening of the African swine fever virus.

The invention discloses a fluorescence sensor for detecting pyrophosphatase and preparation method thereof, with pyrophosphoric acid only before adding the pyrophosphatase, the pyrophosphoric acid and the cupric compound react for producing the complex, the sodium ascorbate cannot reduce the complex cupric compound into the cuprous compound as the catalyst, the azide coumarin and the propargyl alcohol cannot have the 1.3-dipole cycloaddition, so that the fluorescence intensity of the system is low; after adding the pyrophosphatase, which can hydrolyze the pyrophosphoric acid for inhibiting the formation of cupric compound complex, the click chemistry reaction continues, the fluorescence intensity of the system is greatly improved, the relationship between the fluorescence intensity and the amount of the pyrophosphatase is linear relationship. The sensor is successfully used for detecting pyrophosphatase inhibitor sodium fluoride, the fluorescence sensor for detecting pyrophosphatase and the preparation method thereof are simple in operation, low in cost, high in sensitivity and good in specificity.

The invention relates to a full automatic control device of textile machinery, which solves the technical problem of leading a spindle in every twisting unit equipped with the full automatic control device to have the function of automatic stop of short yarn and full tube as well as the characteristics of rapid response, sensitive operation, accurate computation, structural durability and low cost. A composite twisting machine single spindle assembly automatic stop device also comprises a broken wire detecting rod articulated on a stander, a trigger rod positioned under the broken wire detecting rod, a piece of electromagnet used for absorbing the trigger rod and driving the trigger rod to move downwards, a winding roller clutch and an electronic detecting head installed on the clutch; a loop at one end of the broken wire detecting rod is used for being passed through by yarn, and presses the trigger rod arranged under the loop to move downwards together when the yarn is broken; the electronic detecting head send out electrical signals when the length of the twisted yarn reaches the preset standard; once receiving the electrical signals, the electromagnet immediately absorbs the trigger rod and drives the trigger rod to move downwards, and the winding roller clutch is further triggered to act and do stop operation at once.

This invention relates to garlic virus RT-PCR test reagent box and its test method specially used in the test of GMV and GCLV, among which, the box includes: an inverse transcription reagent box, a PCR box and a positive control. The test method includes reaction of the inverse transcription, PCR reaction and electrophoresis detection, the electrophoresis containing GMV test result is the amplified 32Tbp strip and the result with GCLV is the amplified 469bp strip. The PCR part of the reagent box adopts small reaction system.

The invention provides a preparation method and an application of a current type electrochemical sensor for detecting bisphenol A, belonging to the field of a nano functional material and environmental detection. The preparation method of the bisphenol A electrochemical sensor utilizes an electrode surface modification technology to modify a prepared PtRu nano porous alloy material and a chitosan solution on the surface of an electrode, and takes the electrode which is successfully modified as a working electrode to be connected to an electrochemical work station, so as to detect the bisphenol A. The electrochemical sensor disclosed by the invention has the advantages of strong selectivity, high sensitivity, and simplicity and rapidness in operation, and is suitable for detecting the bisphenol A in a water sample.

A vehicle control system and method through peripheral collision situation prediction are disclosed. The vehicle control system includes omnidirectional sensors configured to sense distances and relative speeds between a host vehicle and peripheral objects and to transmit the distances and the relative speeds to an electronic control unit, vehicle dynamics sensors configured to sense a driving speed of the host vehicle and to transmit the driving speed to the electronic control unit, and the electronic control unit configured to receive sensing signals from the omnidirectional sensors and the vehicle dynamics sensors, to predict collision risk between a plurality of the peripheral objects and to execute control so as to perform braking avoidance and steering avoidance of the peripheral objects, thus being capable of preventing a secondary accident or a pile-up.

The invention discloses an aptamer for identifying zeatin through specifity, and a screening method and an application of the aptamer. The aptamer is a single-chain DNA (deoxyribonucleic acid) segment shown by any one from sequence 1 to sequence 8 in a sequence table. The aptamer and the nucleic acid probe based on the aptamer can identify the zeatin through specifity, have better affinity for trans-zeatin and trans-zeatin riboside than cis-zeatin and dihydro zeatin, and are used for detecting whether materials to be detected contain the zeatin and the content of the zeatin. The method has the advantages of being simple, sensitive, rapid and special in operation and low in cost, and the method has high application value on the aspects of separating, enriching and detecting the zeatin.