8results about How to "Improve response characteristics" patented technology

The invention discloses a glucose response type insulin delivery system as well as a preparation method and application thereof, and belongs to the technical field of biological materials. The glucose response type insulin delivery system provided by the invention comprises a delivery carrier and a bioactive component encapsulated in the carrier, the delivery carrier is a metal polyphenol network formed by carrying out coordination reaction on epigallocatechin gallate and metal ions; the bioactive components comprise glucose oxidase, catalase and insulin. The glucose response type insulin delivery system provided by the invention can adjust the release of insulin according to the concentration of glucose in the surrounding environment, so that the blood glucose is maintained at a normal level.

The invention relates to a force and position mixed sensing and control system and method for cataract ophthalmologic surgery. The method comprises the steps that a first adjusting parameter is calculated according to position and posture change data, collected by a position and posture collecting module, of an eyeball position and posture at the first moment; acquiring an actually measured contact force at a first moment acquired by a force sensor; acquiring puncture depth data of the surgical instrument at a first moment based on a pose acquisition module; inputting the puncture depth data into a preset puncture force model to obtain a predicted contact force; operating parameters of an admittance controller are adjusted according to the force error value of the actually measured contact force and the predicted contact force; outputting a second adjustment parameter based on the admittance controller according to the actually measured contact force; and inputting the initial operation instruction, the first adjustment parameter and the second adjustment parameter into a preset instruction adjustment model to generate a target operation instruction at a second moment. The ophthalmic surgical robot can adapt to diversified surgical scenes with high precision and low interference, and meanwhile, the operation accuracy and smoothness of the ophthalmic surgical robot and the safety of the ophthalmic surgery are considered.

This invention provides a wireless, passive force-position implantable growth monitoring system and its fabrication method for early-onset scoliosis correction. The system includes: a connected compressible capacitive sensor and a flexible wireless antenna coil; the compressible capacitive sensor is connected to a self-growing early-onset scoliosis correction implant growth rod, and the flexible wireless antenna coil is disposed within the body. The compressible capacitive sensor and the flexible wireless antenna coil together constitute an LCR resonant circuit; the compressible capacitive sensor monitors the pressure changes caused by the elongation of the self-growing early-onset scoliosis correction implant growth rod during tissue or bone growth, thereby causing changes in capacitance and resulting in changes in the resonant frequency of the LCR resonant circuit; the resonant frequency change is detected and read out wirelessly via an external readout device. This system is designed to meet the needs of digital rehabilitation, requires no internal power supply, and has a stable structure, making it suitable for growth monitoring after early-onset scoliosis correction surgery.

The invention relates to a real-time vibration compensation device and method for a cold atom gravimeter. The device comprises a Raman laser, a rubidium atomic group, a reflector, an accelerometer, an optical phase-locked loop module, an analog-to-digital converter, a reference clock source, a heteronuclear FPGA, a direct frequency generation module and an upper computer. Two pairs of Raman lasers oppositely act on a rubidium atomic group in the vertical direction, the accelerometer and the reflector are in rigid connection, analog differential signals of the accelerometer enter the analog-digital converter, converted digital signals enter the heteronuclear FPGA for digital calculation, and the reference clock source serves as clock signals of the digital circuit. A signal calculated by the heteronuclear FPGA enters the direct frequency generation module and is output to the optical phase-locked loop to control the phase of the Raman laser, and the heteronuclear FPGA communicates with the upper computer through TCP connection. The vibration real-time compensation device for the cold atom gravimeter is fully digital, and has the advantages of large dynamic range, low noise and high-precision phase synchronization compensation capability.

The present invention relates to a preparation method and application of a calcium aluminum oxide-based composite material electrode, comprising the following steps: (1) grinding calcium aluminum oxide with an inorganic material selected from bismuth oxide and graphite in a mass ratio of 1-5:1, then adding chitosan and water, stirring evenly, and drying to obtain a calcium aluminum oxide-based composite modified material; (2) mixing the calcium aluminum oxide-based composite modified material with water to form a suspension, coating the suspension on a clean glassy carbon electrode surface, and drying to obtain a calcium aluminum oxide-based composite material electrode; the calcium aluminum oxide-based composite material electrode is specifically a calcium aluminum oxide / bismuth oxide composite material electrode and a calcium aluminum oxide / graphite composite material electrode. The composite electrode of the present invention can improve the surface resistance of the electrode to anions Cl ‑ The enrichment performance is excellent, and the minimum chloride ion concentration that can be detected is 0.1 mol / L.

The invention belongs to the technical field of photoelectric functional materials, and discloses a multi-acid-group photoelectric functional material with a reverse photoconduction programmable switching characteristic, and a preparation method and application of the multi-acid-group photoelectric functional material. The polyacid-based photoelectric functional material with the reverse photoconduction programmable switching characteristic is inorganic-organic hybrid polyniobium oxysalt, the chemical composition of the polyacid-based photoelectric functional material is [Ni (BTP)] 4 [Nb10O26]. 35H2O, BTP is a Bis-tris propane organic ligand, and the Bis-tris propane organic ligand is a Bis-tris propane organic ligand. When the multi-acid-group photoelectric functional material with the reverse photoconduction programmable switching characteristic is constructed into a photoelectric device and applied with external bias voltage and illumination, the photoconduction response polarity can be reversibly switched between positive photoconduction and reverse photoconduction, and reversible switching is regulated and controlled by excitation light wavelength and environment relative humidity. The method has important application value in the fields of photoelectric detection, environment sensing and multi-stimulus response optoelectronic devices.

The present invention belongs to the technical field of gas-sensitive materials, and relates to a nickel nanocluster modified porous core-shell composite indium oxide material and its preparation method and application. Including indium oxide and metallic nickel, and the molar ratio of indium oxide to metallic nickel is 1: (0-0.2); the crystalline phase of indium oxide is a composite phase composed of a cubic phase and a rhombic corundum phase, and the structure of indium oxide is a porous hollow core-shell micron spherical structure, which is composed of a shell layer wrapping a core, and a hollow cavity is formed between the shell layer and the core, wherein the shell layer is composed of porous indium oxide nanoparticles, and the core is a micron sphere assembled from porous indium oxide nanoparticles; metallic nickel is dispersed on the surface of the porous hollow core-shell micron spherical structure in the form of nanoclusters. The material provided by the present invention can detect transient NO2 at a relatively low operating temperature with high sensitivity, high selectivity, and a wide concentration range, and has excellent practical application value and industrial production prospects.

The invention discloses a preparation method of a Bi2MoO6 gas sensitive material, a gas sensitive sensor and application, and relates to the technical field of gas sensors. According to the invention, the Bi2MoO6 nano-particles with smaller particle size and uniform dispersion are prepared by a solvothermal method, the Bi2MoO6 nano-particles have obvious response characteristic and excellent detection sensitivity to NO gas, and the gas sensitive sensor taking the Bi2MoO6 nano-particles as a gas sensitive material can realize efficient detection of NO gas; and the Bi2MoO6 nanoparticles have good chemical stability and thermal stability, so that the gas sensitive sensor is suitable for effectively monitoring NO gas in complex environments such as high temperature and high humidity, and has important significance on industrial production, environmental protection and scientific research.