29results about How to "Sensitive" patented technology

The invention discloses stimuli-responsive ionic conductive hydrogel as well as a preparation method and application thereof. The preparation method comprises the steps that a hydrogel precursor solution containing a cross-linking agent, a phase change regulating agent, a photoinitiator, water and PEDOT: PSS is provided, the cross-linking agent comprises laponite, and the phase change regulating agent at least comprises N-isopropylacrylamide; irradiating the hydrogel precursor solution with ultraviolet light, and curing to obtain blocky conductive hydrogel; and fully contacting the blocky conductive hydrogel with a zinc salt solution containing zinc ions to prepare the stimulus-responsive ion conductive hydrogel. The stimulus-responsive ionic conductive hydrogel prepared by the invention can realize good mechanical properties, adhesion performance and conductivity, has sensing performance to strain and temperature, can be prepared into a strain / temperature sensor, and realizes high sensitivity and fast response speed; in addition, a synaptic device can be prepared.

The application discloses a SiO2-coated negative thermal expansion film and application thereof, and belongs to the technical field of temperature measurement. 12 :Nd 3+ The precursor solution is calcined to obtain the negative thermal expansion film, and then SiO2 solution is added dropwise on the negative thermal expansion film to obtain the SiO2-coated Yb2W3O 12 :Nd 3+ The SiO2-coated negative thermal expansion film is loaded on the opal template. 12 :Nd 3+ As a matrix, the SiO2 coating does not affect the luminescence of the negative thermal expansion film, and makes the Yb2W3O 12 :Nd 3+ The luminescence of the film in the near infrared is significantly enhanced. In addition, compared with the negative thermal expansion material film without the SiO2 coating, the negative thermal expansion material film is more sensitive to temperature.

The application provides a telescopic supporting clamp for milling off to 90-degree machining and a profile machining device, which is applied to the technical field of profile machining and is arranged in a sawing area of the profile machining device. The profile machining device further comprises at least a feeding area and a discharging area. After being machined in the sawing area, the profile workpiece is sent to the discharging area for discharging. The supporting clamp comprises a Z-axis clamping module arranged on the side of a 90-degree saw blade and used for clamping the profile workpiece when the 90-degree saw blade mills off; and a Y-axis driving module connected with the Z-axis clamping module and used for driving the Z-axis clamping module to telescopically extend in the Y-axis direction. By additionally arranging a clamp capable of telescopically extending in the Z-axis direction on the side of the 90-degree saw blade, the clamp extends out to clamp the profile when the 90-degree saw blade cuts off, thereby playing an auxiliary supporting and fixing role, reducing the deformation of the workpiece during machining and improving machining precision.

The utility model relates to a sightseeing vehicle technical field, concretely relates to a kind of tourist sightseeing vehicle safety early warning protection device, including vehicle body, the top of vehicle body is provided with the protection component for the protection when vehicle body is about to impact barrier, protection component includes two connecting barrels fixedly connected in the top of vehicle body, and the one end of connecting barrel is slidably connected with anti-collision plate, the top of vehicle body is provided with alarm component, the utility model is provided with protection component and alarm component, and it has passive protection and early warning function in the process of driving sightseeing vehicle, when the front end of vehicle is about to contact barrier, anti-collision plate in the front of vehicle is compressed under stress simultaneously, can rotate through connecting structure drive gear set and drive alarm structure action, realize the buffer energy absorption and synchronous sound early warning to barrier, avoid the collision risk caused by the driver due to blind area or inattention.

The utility model discloses a coil pipe temporary storage device which comprises a first pipe winding wheel set and a second pipe winding wheel set which are oppositely arranged. The first pipe winding wheel set and the second pipe winding wheel set are combined to form a pipe coiling position on the periphery, the lifting mechanism drives the first pipe winding wheel set or the second pipe winding wheel set to move longitudinally so as to adjust the distance between the first pipe winding wheel set and the second pipe winding wheel set, and then the length of the pipe coiling position is adjusted. Compared with the prior art, the buffering device has the advantages of being simple in structure, convenient and fast in pipe penetrating, good in buffering effect, attractive in appearance, simple and reasonable in structure, convenient to maintain, long in service life, convenient and fast to install, capable of effectively avoiding pipe pollution during roll changing, beneficial to dust-free work of a unit and the like. The method is suitable for high-speed production of folding-resistant pipes such as drip irrigation pipes and floor heating pipes.

The application provides a kind of intelligent gloves, it is related to smart wearable device technical field, including glove body, including palm part and finger part, palm part front is palm side, the back of palm part is back side, including: flexible array resistance sensor, set as bendable, stretchable structure, flexible array resistance sensor is integrated at least in palm side and finger part, for real-time acquisition the pressure data of the glove body action and send pressure signal;Master module is set to the back side, the master module includes flexible resistance sensor acquisition device and master control circuit;The flexible resistance sensor acquisition device is used to receive the pressure signal sent by the flexible array resistance sensor and convert the pressure signal into first electric signal, and the master control circuit is used to receive the first electric signal sent by the flexible resistance sensor acquisition device. Solve how to improve the sensitivity of intelligent gloves to small contact changes in related technologies.

The invention discloses a bionic picking manipulator and a grabbing control method thereof, relates to the technical field of automatic picking robots, and comprises a rope-driven three-finger bionic picking manipulator and a control method thereof, and the manipulator is provided with a plurality of pressure sensors for acquiring contact force in the grabbing process; one attitude sensor is used for acquiring the attitude of the manipulator, the plurality of steering engines are used for controlling the positions of the knuckles respectively, and the core of the control method is that a comprehensive grabbing quality index Q is calculated based on contact force, attitude and knuckle position data acquired in real time. The index Q is composed of Qp for reflecting the stability in a fruit plane and Qf for reflecting the axial anti-sliding capability. According to the system, the real-time Q value is compared with a target threshold value Qs set according to the ideal grabbing posture, output of all the joint steering engines is dynamically adjusted, and therefore self-adaptive optimal distribution of grabbing force is achieved under the multiple grabbing postures, and grabbing stability can still be kept when part of contact points fail.

The present invention provides a damper adjustment device, an air outlet plate structure and a refrigerator, which relate to the technical field of refrigerators and solve the technical problem that the control of the dampers of existing refrigerators in the prior art requires the use of motor drive. The device includes a support structure and an elastic bag, wherein the elastic bag is filled with a refrigerant and the elastic bag is supported on the support structure. The refrigerant is converted between solid and liquid states so that when the refrigerant is in a solid state, the damper can be lifted up to close the air outlet, and when the refrigerant is in a liquid state, the damper can fall under the action of gravity to open the air outlet. The present invention uses physical properties to open and close the air outlet without additional power consumption.

The utility model provides a sliding block butt joint type two-axis platform which comprises a base, an equipment installation base plate, an X-axis guide rail, an X-axis ball screw, a Y-axis guide rail and a Y-axis ball screw. The X-axis guide rail and the Y-axis guide rail are both provided with sliding blocks assembled with the X-axis guide rail and the Y-axis guide rail in a sliding mode. The X-axis guide rail and the X-axis ball screw are both mounted on the base; the equipment installation base plate is located above the base, the Y-axis guide rail and the Y-axis ball screw are both installed on the lower plate face of the equipment installation base, a sliding block on the Y-axis guide rail is fixedly connected with a sliding block on the X-axis guide rail, and a nut on the Y-axis ball screw is fixedly connected with a nut on the X-axis ball screw. According to the structural design, a middle mounting plate is omitted, the structure is simplified, the light weight and miniaturization of a two-shaft platform are facilitated, the action of each shaft is more sensitive, meanwhile, the load of the motor during acceleration and deceleration is reduced, a motion system can meet the use requirement by using the motor with a lower specification, and the cost is reduced.

The invention discloses a salmonella H: i epitope specific monoclonal antibody and application thereof, the salmonella H: i epitope specific monoclonal antibody is secreted by hybridoma cells with the preservation number of CCTCC NO: C202645, and the antibody has the advantages of high titer and strong specificity. According to the blocking ELISA detection kit constructed by the antibody and the detection method of the blocking ELISA detection kit, the antibody containing H: i antigen epitope salmonella in infected animal serum can be specifically detected, the antibody does not react with antibodies containing no H: i antigen epitope salmonella and non-salmonella, the sensitivity, specificity and stability are good, and the detection method is simple and convenient. And a new method is provided for direct serological detection of H: i antigen epitope-containing salmonella infection of mouse typhimurium, kafenkii and the like.

The invention discloses a method for preparing a positive electrode material of a carbon dioxide sensing friction nanogenerator, the method comprising the following steps: (1) preparing a nanocellulose / polyethyleneimine microgel colloid using a nanocellulose and polyethyleneimine aqueous solution; (2) mixing the microgel colloid of step (1) with n-hexane in a certain proportion, and subjecting the mixture to high-speed shearing treatment to obtain a film-forming liquid; (3) casting and drying the film-forming liquid to form a film to obtain a positive electrode material of a carbon dioxide sensing friction nanogenerator. The material obtained by the method of the invention has a multi-level pore structure and has good adsorption of carbon dioxide. The material is used as a triboelectric positive material and a perfluoroethylene-propylene copolymer film as a negative electrode material to form a friction nanogenerator. Different electrical signals can be generated when the carbon dioxide concentration changes during the contact separation process, thereby realizing quantitative detection of carbon dioxide. In addition, the method of the invention has a simple preparation process, and the raw materials have good biocompatibility. The obtained material has important application value in the field of gas sensing.

The invention discloses a protein composition for serum antibody detection and application of the protein composition in early diagnosis of lung cancer, and belongs to the technical field of biological medicine. The protein composition comprises an antigen protein TGIF2LY and any one or more of antigen proteins CHIC2, RAC3, HRAS, CDK9, HK2, TXNDC2, TEX264 and N4BP1, on the basis of improving the sensitivity, the same average value of sensitivity and specificity can be basically achieved, particularly, the protein composition comprises the antigen proteins TGIF2LY and CHIC2, the sensitivity is 64%, the specificity is 95%, and the average value of sensitivity and specificity is 79%. Besides, the antigen proteins CHIC2, RAC3, CDK9 and HK2 are newly screened antigen proteins and can be used for detecting the IgG antibody of the lung cancer in serum so as to be used for early diagnosis of the lung cancer, and the sensitivity, the specificity and the average value of the sensitivity and the specificity are basically the same as those of a single antigen protein in the prior art and even better than those of the single antigen protein in the prior art.

The utility model relates to the technical field of large-scale closed titanium slag electric furnace electrode hydraulic control systems, in particular to a large-scale closed titanium slag electric furnace electrode hydraulic control system which comprises an OS operation station and a PLC cabinet, the OS operation station controls the PLC cabinet through the Ethernet, the PLC cabinet is externally connected with a control structure, the control structure comprises a shielding control line, and the shielding control line is connected with the PLC cabinet. The PLC cabinet controls the output of the control relay to be frequently opened and closed through a shielding control line, the control relay is connected with an independent power supply cabinet through a shielding control line, the control relay is electrically connected with a normally open contact of the relay, and a hydraulic cylinder is arranged outside the independent power supply cabinet. The intermediate relay of the electrode descending one-way valve of the electrode hydraulic control system of the large closed titanium slag electric furnace is replaced by a domestic solid-state relay, the carbonization phenomenon does not exist, the replacement period can be prolonged, an independent power supply is used for supplying power, stability and reliability are achieved, action is sensitive, and parameter adjustment and control are more stable; the practicability and the service life of the device are improved.

The present invention discloses a pump for a washing device, comprising a pump body; a pump cavity for containing liquid is arranged in the pump body; a liquid inlet and a liquid outlet connected to the pump cavity are arranged on the pump body; an impeller connected to a motor is arranged in the pump cavity; and a heating component is also arranged extending from the outside of the pump body to the pump cavity to heat the liquid in the pump cavity; a temperature switch arranged on the pump body to monitor the temperature of the liquid in the pump cavity and a first pressure switch to sense the liquid level in the pump cavity and connected to the heating component; the impeller divides the pump cavity into a first chamber close to the liquid inlet and a second chamber away from the liquid inlet; and the heating component is arranged in the second chamber. The present invention provides a pump for a washing device, which reduces the volume of the pump body, increases the washing accommodation space of the washing device, and at the same time improves the flow field in the pump cavity by improving the structure of the impeller, and makes the thermal field in the pump cavity more uniform by changing the structure of the heating component.

The invention discloses an electric heating scrapped initiating explosive device destroying device which comprises a furnace body, and the furnace body comprises an upper furnace body assembly (1), a furnace body locking ring assembly (2), a furnace body straight section assembly (3), a lower furnace body cover assembly (4), a feeding mechanism cover assembly (5), a feeding mechanism locking ring assembly (6), a lifting mechanism locking ring assembly (7) and a lifting mechanism cover assembly (8). The locking action is sensitive, opening and closing are smooth, the opening and closing time is shortened, and the requirement for destroying scrapped initiating explosive devices is met; the damage to human bodies caused by destroying residues of scrapped initiating explosive devices and leakage of radiation gas is prevented, and the electric cylinder is driven by the servo motor to achieve jacking of the lower furnace body cover.

The invention discloses a kit for detecting African swine fever virus and a fluorescent quantitative PCR (polymerase chain reaction) detection method, and belongs to the technical field of kits and virus detection. The kit comprises an African swine fever virus capture probe (VP72-CP), a [P6, 6, 6, 14 +] [Co (hfacac) 3-] material chemically combined with the VP72-CP, and a specificity probe and a probe for non-swine fever virus fluorescent quantitative PCR (Polymerase Chain Reaction) detection. The capture probe and the magnetic ionic liquid material are anchored and combined, the combined capture material can specifically recognize, adsorb and capture African swine fever virus nucleic acid, the fluorescent quantitative PCR detection method is used for detecting the content of the African swine fever virus, and good sensitivity, specificity and repeatability are achieved.

The present invention discloses a kit for detecting the expression level of RBP4 protein, the kit is composed of an effective amount of RBP4 protein and two effective amounts of anti-RBP4 protein monoclonal antibodies and matching detection reagents, the two anti-RBP4 protein monoclonal antibodies are monoclonal antibody 1 and monoclonal antibody 2, the heavy chain variable region and light chain variable region sequences encoding monoclonal antibody 1 are shown in SEQ ID NO.1 and SEQ ID NO.2, and the heavy chain variable region and light chain variable region sequences encoding monoclonal antibody 2 are shown in SEQ ID NO.3 and SEQ ID NO.4. The kit of the present invention has the advantages of high sensitivity, wide linear range and fast detection speed.

This invention discloses a photo-thermal dual-curing adhesive and its preparation method, belonging to the field of electronic adhesive technology. The adhesive comprises, by weight, 25-40 parts of a polyfunctional epoxy resin, 15-30 parts of epoxy acrylate, 15-35 parts of an acrylate compound, 8-16 parts of a polythiol compound, 0.1-5 parts of a photoradical generator, and 0.5-10 parts of a latent curing agent. The polyfunctional epoxy resin contains a thiadiazole ring, and each of the two carbon atoms of the thiadiazole ring is independently attached with a glycidyl ether group, the total number of glycidyl ether groups being ≥3. This invention achieves a unified effect of rapid photocuring and positioning, high adhesive strength, excellent resistance to damp heat aging, and good rework performance through the synergistic effect of the thiadiazole ring polyfunctional epoxy resin, epoxy acrylate, thiol acetylenide derivative TS-G, and polyfunctional polyester acrylate.

The invention discloses a diagnostic preparation for measuring immune levels, belonging to the field of biomedicine. The present invention first modifies magnetic mesoporous silica by aminosilane coupling agent, γ-mercaptopropyltrimethoxysilane, N-isopropylacrylamide, N-hydroxypropylacrylamide, concentrated sulfuric acid and hydrogen peroxide to obtain modified mesoporous silica, then mixes the modified mesoporous silica with polyallylamine hydrochloride, adds chloroauric acid, stirs and mixes, then adds trisodium citrate for reduction, obtains a product blank, and finally mixes the product blank with an antigen to obtain a diagnostic preparation for measuring immune levels. The diagnostic preparation for measuring immune levels prepared by the present invention has sensitive immunodiagnostic performance and has a good judgment effect on immune levels.

The utility model discloses a pressure cooking utensil which comprises a pot body and a pot cover arranged on the pot body in a removable mode, a containing position used for containing the pot cover is arranged on one side of the pot body, the pot body is provided with a detection piece, the pot cover is provided with a trigger assembly, and the trigger assembly triggers the detection piece when the pot cover is opened and placed in the containing position. When the pot cover is placed in the containing position, the trigger assembly triggers the detection piece, so that the pressure cooking utensil obtains a signal that the pot cover is placed in a correct position, and the pressure cooking utensil can cook in a cover opening cooking mode. When the pot cover is not placed in the containing position, the detection piece has no signal, and the pressure cooking utensil cannot operate in the uncovering cooking mode. Meanwhile, when the pot cover is contained in the containing position, avoiding is formed on the pot opening, so that steam in the pot can be discharged smoothly, and the safety in the cover opening cooking process is guaranteed.

The present invention discloses a pump for a washing device, comprising a pump body; the pump body forms a pump cavity for containing liquid by means of a first pump shell and a second pump shell that are fastened together; the pump body is provided with a liquid inlet and a liquid outlet that are connected to the pump cavity; the pump cavity is provided with an impeller that is connected to a motor; and further comprises a heating component that extends from the outside of the pump body to the pump cavity to heat the liquid in the pump cavity; a first pressure switch that is provided on the pump body and connected to the heating component; the impeller divides the pump cavity into a first chamber close to the liquid inlet and a second chamber away from the liquid inlet; the heating component is provided in the second chamber; and a circulation hole that is provided on the impeller body so that the liquid in the second chamber flows back to the impeller and flows out from the liquid outlet. The present invention provides a pump for a washing device, which reduces the volume of the pump body, improves the flow field in the pump cavity by improving the structure of the impeller, and makes the heat field in the pump cavity more uniform by changing the structure of the heating component.

The invention discloses a listeria monocytogenes nano antibody and application thereof, and relates to the technical field of biology. The amino acid sequence of the nano antibody is as shown in SEQ ID NO.3. The preparation method comprises the following steps: immunizing alpaca by using p60 protein of prokaryotically expressed listeria monocytogenes as an immunogen, extracting total RNA (Ribonucleic Acid) of peripheral blood lymphocytes, amplifying a VHH fragment through reverse transcription and two rounds of nested PCR (Polymerase Chain Reaction), transforming the VHH fragment and a pComb3Xss vector into a TG1 competent cell after enzyme digestion and connection, and performing three rounds of panning by utilizing a phage display technology, thereby obtaining a TG1 competent cell. And the nanometer antibody LMNb2E10 for resisting the listeria monocytogenes p60 protein is successfully screened out. The nano antibody can specifically recognize listeria monocytogenes, and a double-antibody sandwich ELISA method established by using the nano antibody is high in specificity, high in sensitivity and low in detection limit, and the detection time can be greatly shortened.

The utility model discloses a machine tool spindle cooling liquid leakage detection device. The device comprises a liquid collecting tank arranged outside a machine tool spindle cooling pipeline, a flange sleeve used for collecting cooling liquid is arranged on the lower portion of the liquid collecting tank, a floater column capable of floating up and down is arranged in a center hole of the flange sleeve, and a contact piece is arranged on the upper portion of the floater column. And an inductive switch for detecting the movement of the liquid collecting tank is arranged beside the contact piece on the liquid collecting tank. The device has the advantages that the detection device is triggered through buoyancy of leaked cooling liquid, the detection purpose is achieved in the mode that the inductive switch detects movement of the contact piece, the structural principle is simple, induction is sensitive, and alarm is timely; the upper part of the liquid collecting tank is provided with the extending tank plate, so that dangerous points where leakage possibly occurs on the cooling pipeline are surrounded integrally, the collecting range of leaked cooling liquid is enlarged, and the detection range is larger.

The utility model provides a circuit breaker with electric leakage indication, which comprises a shell, a handle and a tripping mechanism, the tripping mechanism comprises a coil and a push rod, the circuit breaker also comprises an electric leakage indication mechanism, the electric leakage indication mechanism comprises a first rotating frame, a second rotating frame, an elastic piece I and an elastic piece II, the first rotating frame and the second rotating frame are rotatably arranged in the shell, and the elastic piece I and the elastic piece II are arranged in the shell. An indication board is fixed on the first rotating frame, an indication hole is formed in the shell, a first lapping arm is fixed on the first rotating frame, a second lapping arm and a push arm are fixed on the second rotating frame, a push frame is connected to the push rod, a return arm is arranged on the first rotating frame, and a push plate is arranged on the handle. Electric leakage indication is achieved through the arrangement of the first rotating frame, the second rotating frame and the pushing frame, the structure is simple, manufacturing is convenient, the first rotating frame and the second rotating frame act independently, and the action is more sensitive.

The invention discloses a colorimetric sensor for identifying an organic solvent based on mobile phone assistance and a preparation method of the colorimetric sensor, and relates to the technical field of chemical sensing. The chemical colorimetric sensor based on the F-P stacked structure comprises a microstructure of a selection layer, a dielectric layer and a reflecting layer which are prepared from top to bottom, wherein the bottommost layer of the microstructure can be made of any planar material. Wherein the color on the sensor is collected and analyzed by means of the smart phone. According to the invention, the type of the organic solvent can be identified outdoors without large precision equipment, and the sensor also has the advantage that the minimum range is not limited, which is not possessed by a traditional sensor.

This invention relates to a novel methicillin-resistant Staphylococcus aureus (MRSA) bacteriophage and its applications. The invention provides a methicillin-resistant MRSA bacteriophage SP01, which is identified as a new species. This phage possesses highly efficient lytic ability against MRSA and has a broad host spectrum, showing sensitivity to multiple clinical isolates. Furthermore, phage SP01 exhibits excellent environmental stability, maintaining good activity within a temperature range of 4–40°C and a pH range of 7–11. In summary, this invention allows for the preparation of drugs, disinfectants, and bactericides for treating MRSA infections using phage SP01, addressing the problem of conventional antibiotic ineffectiveness and demonstrating broad application prospects.

The invention discloses a composition containing arbuscular mycorrhiza and application of the composition to prevention and treatment of peanut pests. The effective components of the composition are luteolin and arbuscular mycorrhizal fungi. The invention provides a composition containing arbuscular mycorrhiza, the composition comprises luteolin and arbuscular mycorrhiza fungi, the luteolin is a natural flavonoid compound and has multiple biological activities of insect resistance, feeding inhibition, oxidation resistance and the like, and by directly influencing digestive systems, behaviors and development of pests, the luteolin can effectively reduce harm of the pests; the arbuscular mycorrhizal fungi are beneficial microorganisms symbiotic with plant root systems, the arbuscular mycorrhizal fungi and the arbuscular mycorrhizal fungi are compounded, the arbuscular mycorrhizal fungi can help peanuts to better absorb nutrients, so that the stress resistance of plants is improved, the peanuts have better resistance when being invaded by pests, luteolin directly inhibits the pests, and the yield of the peanuts is increased. The combination of the two can effectively improve the durability of the insecticidal effect and reduce the sensitivity to repeated occurrence of pests.

The present application provides an intelligent particle screening device and a filter damage monitoring method thereof, which belongs to the technical field of using filter screens to screen solid particles. The device includes: two layers of filter screens, two tension and pressure sensors, a power module, a data acquisition and transmission module, a control module and an outer frame. The two layers of filter screens are respectively connected to the two tension and pressure sensors. The power module is used to drive the screening, the control module is used to control the screening process, and the data acquisition and transmission module is used to collect and transmit sensor data. The filter damage monitoring method uses a machine learning model to train the model by collecting the tension data of the two layers of filter screens under normal operation and different degrees of damage, so that it can capture the characteristics of the tension change relationship between the two layers of filter screens. In the actual screening process, the tension data of the two layers of filter screens are monitored in real time, and it is judged whether the filter screen is damaged and the degree of damage. This technical solution can sensitively and real-time monitor the status of the filter screen, reduce the losses caused by filter screen damage, and improve screening efficiency.

The present invention discloses a nano antibody for Listeria monocytogenes and its application, and relates to the field of biotechnology. The amino acid sequence of the nano antibody is shown in SEQ ID NO.3. The present invention uses the p60 protein of Listeria monocytogenes expressed in prokaryotes as an immunogen to immunize alpacas, extracts total RNA of peripheral blood lymphocytes, amplifies VHH fragments by reverse transcription and two rounds of nested PCR, digests the VHH fragments with pComb3Xss vectors through enzyme digestion, connects and transforms into TG1 competent cells, and successfully screens out a nano antibody LMNb2E10 against Listeria monocytogenes p60 protein through three rounds of panning using phage display technology. The nano antibody can specifically identify Listeria monocytogenes, and the double-antibody sandwich ELISA method established by the nano antibody has strong specificity, high sensitivity, low detection limit, and can greatly shorten the detection time.