14results about How to "Avoid shielding" patented technology

The invention discloses an aptamer electrochemical biosensor based on an AuNPs / MXene nanometer material and a preparation method and application of the aptamer electrochemical biosensor. According to the electrochemical biosensor, AuNPs particles grow on the surface of MXene, an AuNPs / MXene composite material is prepared, then the composite material is fixed to the surface of an electrode through chitosan, aptamer probes P1 and P2 are hybridized with MCH, and then the aptamer probes P1 and P2 are self-assembled to the surface of the electrode through Au-S bonds. According to the invention, the AuNPs / MXene nano material is prepared, and the AuNPs / MXene nano material and the AuNPs / MXene nano material play a synergistic effect, so that the performance of the sensor is further improved, the sensor has a wide detection range and a low quantitative line, and rapid, sensitive and specific detection on a sample can be realized. The sensor can be used for in-situ detection of inflammatory factors at a wound, can be applied to non-invasive instant wound nursing monitoring equipment, and provides reliable and timely monitoring data to realize more effective diagnosis and treatment.

This utility model relates to a surge arrester shielding device, including an insulating cover. The insulating cover comprises two bodies, which are combined to form a platform shape. The interior of the insulating cover is hollow, and both the top and bottom ends are missing. A connecting plate is provided on the outer side of each of the two bodies, and the two connecting plates are hinged together by a hinge shaft. A locking assembly is provided on the outer side of the two bodies, opposite to the connecting plate. This surge arrester shielding device uses a platform-shaped shielding cover with different opening diameters at the top and bottom. It can fit onto the outer side of surge arrester flanges of different sizes, eliminating the need for custom-made insulating covers for different sizes of surge arresters. When the flange diameter varies within a certain range, the platform-shaped conical shielding cover can adaptively wrap by adjusting its height. This avoids the problems of traditional cylindrical insulating covers being too loose and causing leakage, or too tight and difficult to install, which are caused by fixed dimensions. It significantly reduces the types of spare parts and lowers equipment management costs.

The utility model discloses a protective Bluetooth on-machine measuring head, and particularly relates to the field of on-machine measuring heads, which comprises a machine head, a transparent shell positioned below the machine head, a probe seat positioned at the bottom of the transparent shell and a measuring head rod piece mounted at the bottom end of the probe seat, a base extending into the transparent shell is installed at the bottom end of the machine head, a Bluetooth module is installed on the outer wall of the base, the machine head, the transparent shell and the probe base are sleeved with a protection piece capable of moving in a lifting mode, and an upper limiting piece for adsorbing the top end of the protection piece is installed at the edge of the top end of the machine head. And a lower limiting piece for adsorbing the bottom end of the protection piece is arranged on the outer side of the probe seat. According to the utility model, the telescopic tube and the rubber magnetic ring form a flexible barrier to absorb the impact force of chippings and prevent the transparent shell from being scratched or broken, the transparent shell is made of a low-dielectric-constant material, the signal attenuation is small, the transmission efficiency of the Bluetooth module is ensured, and the rubber magnetic ring and the plastic telescopic tube avoid the metal shielding effect and maintain the signal integrity.

The invention provides a method and a device for preparing a coating on the inner wall of a pipe barrel based on bipolar magnetron sputtering, and the uniform and continuous coating on the inner wall of the pipe barrel is prepared on the inner wall of the deep pipe barrel by improving a magnetic field structure on the basis of existing magnetron sputtering equipment. Specifically, the device comprises a tube barrel and a tubular target arranged in the tube barrel, and the tube barrel and the tubular target are insulated. In the preparation process of the coating on the inner wall of the pipe barrel, the pipe barrel and the tubular target can be mutually positive and negative electrodes and can also be respectively connected with a direct-current power supply, a pulse power supply or a radio-frequency power supply according to the requirements of a coating process, and the tubular target must have the time when the potential is negative relative to the pipe barrel. At least two closed magnetic fields with magnetic induction lines distributed in an arch shape and penetrating through the target surface are constructed on the surface of the tubular target through a permanent magnet or an electromagnetic coil or a combination of the permanent magnet and the electromagnetic coil, at least one divergent magnetic field mainly perpendicular to the target surface component exists between two annular runways, and magnetic lines of the divergent magnetic field on the surface of the tubular target are dense. And the inner wall of the pipe barrel far away from the target surface is loosened. And part of high-energy electrons are guided to move towards the inner wall of the pipe barrel through magnetic induction lines, so that the density of ions reaching the inner wall of the pipe barrel is improved, and high-speed and high-quality preparation of the inner wall coating of the pipe barrel is realized.

The utility model discloses a header type automobile key and an automobile assembly, a signal amplifier is arranged on a watch buckle, and the signal amplifier can transmit and amplify a communication signal sent by a communication element, so that the communication signal is greatly enhanced. The signal amplifier is mounted on the watch buckle, namely outside the mounting cavity, so that the interference or shielding of electronic component structures such as metal and a screen of the shell on communication signals transmitted by the signal amplifier can be avoided, and signals transmitted and / or received by the communication component can interact with external vehicles or accessories; it is guaranteed that the gauge head type automobile key can correctly recognize automobile signals, and the control effect on an automobile is improved.

The invention discloses a method for improving hole concentration in a p-type compound semiconductor. Comprising the following steps: in the growth process of a p-type doped compound semiconductor epitaxial layer, co-doping and introducing a certain concentration of compensating impurity elements used for inhibiting intrinsic donor type point defects in a compound semiconductor; after growth of the p-type doped compound semiconductor epitaxial layer is completed, annealing treatment is carried out in a protective atmosphere containing non-metallic elements in the compound semiconductor; wherein the hole concentration of the epitaxial layer is improved through the combined action of the introduction of the compensating impurity element and the annealing treatment. According to the method disclosed by the invention, through a synergistic process of low-atomic-number same-family element doping and nitrogen-containing atmosphere annealing, synchronous improvement of the bulk material and the surface hole concentration is realized.

The application relates to the technical field of coal washing and mineral separation, and particularly discloses a novel ultrasonic reinforced pulp conditioning system and process. The system comprises a spiral triangular cone high-shear driven scrubbing device, the spiral triangular cone high-shear driven scrubbing device is connected with a cyclone, the cyclone is connected with a medicament mixing tank, the medicament mixing tank is connected with a limited domain high-speed shearing micro-emulsifying machine, the spiral triangular cone high-shear driven scrubbing device comprises a mechanical shearing device and a shearing groove, and the output end of the mechanical shearing device is connected with a triangular cone rotating impeller; the cyclone comprises a feeding pipeline and an overflow table, the inside of the overflow table is fixedly connected with an overflow outlet pipeline and an intermediate product spiral connecting pipeline, the inner wall of the overflow table is fixedly connected with a coal slime baffle, and the outside of the overflow table is fixedly connected with a sediment base. The pulp conditioning system and process can be used for the flotation conditioning of high-ash and high-mud oxidized coal slime, and has the advantages of efficient stripping of the surface hydration film of the high-ash and high-mud oxidized coal slime and uniform dispersion of the medicament.

The invention belongs to the technical field of organ chips and biological manufacturing, and relates to a vascularized multi-tissue interaction organ chip based on a phase change sacrificial structure and a construction method and application thereof. According to the invention, collaborative construction of multiple tissue chambers and a blood vessel-parenchymal tissue biological interface is realized through a continuous phase change process of the sacrificial hydrogel material; according to the organ chip disclosed by the invention, an extra diaphragm or complex processing is not needed, the continuity and the bionic property of a multi-tissue interaction interface are maintained, the simulation of signal exchange and a pathological process among multiple tissues in a body is facilitated, and the organ chip has higher bionic property and applicability in applications such as complex physiological interaction modeling, drug evaluation and disease mechanism research.

This utility model discloses a metal-structured card device integrating near-field communication (NFC) technology. It includes a first metal plate unit and a second metal plate unit bonded together. An ultra-thin NFC module is embedded within the interface area between the first and second metal plate units. The NFC module includes a thin substrate, an antenna etched onto the substrate, a chip body, and an absorbing material for interference suppression. The absorbing material is fixed to the substrate by an adhesive. This utility model embeds an ultra-thin NFC module between the first and second metal plate units, enabling near-field communication for the metal card, overcoming the metal shielding effect, and improving signal stability and sensitivity. The ultra-thin design ensures mechanical strength without increasing thickness, the etched antenna enhances signal transmission accuracy, and the absorbing material reduces metal interference and improves communication reliability. The absorbing material is fixed by the adhesive, ensuring stability, simplifying the manufacturing process, and reducing costs.

The invention provides an inner wall embedded type multi-dimensional state monitoring system for a GIS transformer. Comprising a transformer shell integrated with a comprehensive information management system, a temperature difference heating module for providing direct current for a multi-source synthesis energy management module, a piezoelectric module for rectifying, boosting and storing energy through an energy management system of the multi-source synthesis energy management module, and an ultrasonic partial discharge detection sensor deposited on the inner wall of the transformer shell, the temperature sensor and the SF6 degradation gas metal oxide semiconductor sensor are used for acquiring signals, and the main control module is used for processing the acquired signals. According to the invention, synchronous acquisition of electric-acoustic-thermal-chemical four-dimensional information in the GIS transformer is realized, all the sensors are deposited on the inner wall of the transformer to improve the accuracy and confidence of diagnosis, and the vibration-thermal energy comprehensive energy supply system solves the problem of stable energy supply of the internal sensors. And a feasible scheme is provided for full-life-cycle intelligent monitoring of the equipment.

The utility model discloses a battery box structure and battery package, battery box structure includes: box, protection cover and antenna board, and the box is equipped with assembly opening, protection cover is equipped with the rim buckle connection of assembly opening with the box, and the cover encapsulation assembly opening, and the material of protection cover is plastic, and the antenna board is connected with protection cover. First, protection cover adopts plastic material, avoids the shielding and interference of metal to antenna board signal, and has promoted the signal quality and communication stability of system. Secondly, protection cover buckle connection with the box makes the sealing property of assembly opening improve greatly, prevents dust and water vapor and other external factors from entering the box effectively, thereby has strengthened the security and service life of battery box internal element. In addition, the buckle type connection mode is convenient for the dismounting of protection cover and antenna board, provides great convenience for the subsequent maintenance, overhaul and antenna board replacement, and has improved the maintainability of product.

The present invention provides an EC hapten and a preparation method thereof, an artificial antigen, an enzyme-linked immunosorbent assay kit and a detection method, and belongs to the technical field of immunoassay. The ethyl carbamate hapten of the present invention can retain the structural characteristics of the ethyl carbamate functional group to the greatest extent, does not affect its own antigenic determinant structure, and can also enhance its ability to couple with a macromolecular carrier protein. The unique structure of the ethyl carbamate hapten of the present invention can avoid the shielding effect of the macromolecular carrier protein on it, and after coupling with the carrier protein, the antigenic determinant can be completely exposed, thereby generating good immunogenicity. The ethyl carbamate kit prepared using the ethyl carbamate hapten of the present invention has the characteristics of convenience, rapidity, sensitivity, etc., and is suitable for on-site large-scale sample detection.

The invention relates to the technical field of short message shielding, and discloses a spam short message shielding method based on big data, and the method comprises the following steps: firstly, recognizing a target user needing spam short message shielding, and obtaining a short message received by the target user and a sender; carrying out preliminary screening by using a preposed shielding strategy, and requesting to access a user address book if the preposed shielding strategy is not completely shielded; respectively adopting different short message shielding strategies according to whether the user agrees to access the address book or not; if the user does not agree to access, partial or complete shielding is carried out by setting a threshold value based on the number of times of marking the junk short messages by other users; if the user agrees to access, trust degree is calculated according to address book information and user interaction frequency, and the short message is processed correspondingly; in addition, the content of the short message is recognized by setting a shielding word bank and pinyin variants of the shielding word bank, the front shielding strategy is further perfected, and accurate interception is achieved.

The invention discloses an in-situ attenuated total reflection Fourier transform infrared spectrum detection method based on microwave heating, and belongs to the technical field of spectrum detection and analysis. According to the method, a design strategy that microwave heating and an infrared spectrum system are arranged separately is adopted, and a high-refractive-index infrared reflection crystal is used as a unique coupling detection area, so that real-time infrared spectrum monitoring of a reaction system is realized. The detection method disclosed by the invention is particularly suitable for in-situ monitoring of hydrogenation, cracking and conversion reaction of an oxygen-containing or unsaturated substituent compound on a furan ring or a benzene ring, and is compatible with microwave and catalytic reaction mechanism research, material interface reaction analysis and spectroscopic characterization of a biomass derivative conversion process; the method has the advantages of being accurate in temperature control, high in response speed, high in signal stability and good in data repeatability, dynamic spectrum tracking can be conducted on a complex reaction system, a traditional external heating detection mode is compatible, and the space matching degree and the time resolution of microwave field in-situ characterization are remarkably improved.