67results about How to "Good environmental stability" patented technology

The invention belongs to the technical field of flexible transparent film electrodes, and particularly relates to a flexible indium tin oxide film electrode, a preparation method and a flexible solar cell. According to the flexible indium tin oxide thin film electrode provided by the invention, after the processes of pre-treating substrates such as PET, covering an acrylic resin hard coating, depositing a SiO2 transition layer and the like, the adhesive force of the indium tin oxide conductive thin film is improved through the indium tin oxide conductive thin film deposited through alternate radio frequency magnetron sputtering and direct current pulse magnetron sputtering; the bottom layer deposited by radio frequency magnetron sputtering is used for providing an interface seed layer for the fluorine-doped indium tin oxide conductive thin film layer deposited by direct current pulse magnetron sputtering and having high carrier concentration and low resistance, and the top layer is used for providing protection, so that the conductivity, environmental stability and other properties of the flexible indium tin oxide thin film electrode are improved; the conductive performance is not easy to attenuate, the long-term use stability is good, and the technical problem that in the prior art, a flexible transparent film electrode is low in performance is solved.

The present application relates to the technical field of lighting control, in particular to a landscape lighting dynamic control method based on environment perception data, the present application collects the reflected light radiation of the lighting object at the preset observation position, and compares the reflected light radiation with the reference radiation to obtain the reflected light radiation deviation rate; the surface optical state of the lighting object is identified according to the time series change trend of the deviation rate, and the intermediate state hosting mode is entered during the state transition; after completing the surface optical state switching, the corresponding projection adjustment parameter is obtained by searching the state-projection geometric relationship database; at the same time, hierarchical power compensation control is performed based on the brightness contribution proportion of the near, middle and far layers to generate device control instructions. The method can improve the adaptability of landscape lighting to environmental changes, enhance the visual level coordination and lighting stability.

This invention discloses a low-hydrogen flux-cored welding wire based on two-dimensional MXene surface self-assembly modification, its preparation method, and its application, belonging to the field of welding materials technology. The low-hydrogen flux-cored welding wire comprises a steel strip outer sheath and a flux core filled within it, the flux core being composed of metal alloy powder and modified composite flux core powder. Its preparation method includes: preparing a two-dimensional MXene colloidal dispersion using a chemical etching method; cationically modifying the insulating slag-forming powder; mixing the two and electrostatically self-assembling and coating them; after drying, mixing with the metal alloy powder; filling the steel strip; and rolling and drawing into shape. This invention constructs a three-dimensional continuous conductive network within the flux core through the MXene layer, improving arc stability; simultaneously, the MXene shell forms a physically water-blocking labyrinth, endowing the welding wire with ultra-low hydrogen characteristics; the active titanium released by the decomposition of MXene at high welding temperatures can refine the weld grains and improve mechanical properties. This welding wire can be widely used in automated gas-shielded welding processes for high-strength steel.

This invention discloses a method for constant temperature and humidity control of a cigar cabinet based on a fuzzy control algorithm, comprising the following steps: setting a target temperature and humidity range; collecting environmental data of each layer through a distributed sensor array and comparing it with the target range to obtain the temperature and humidity deviation of each layer; inputting the deviation into a temperature and humidity decoupling control module and outputting a weight adjustment signal; inputting the weight adjustment signal into a fuzzy controller to construct a multi-objective fitness function, optimizing it with the WFPSO algorithm, and outputting hierarchical fuzzy controller parameters; inputting the hierarchical fuzzy controller parameters into a hierarchical temperature and humidity model to monitor the status of each layer in real time, and outputting a drive command when the limit is exceeded; inputting the drive command and hierarchical parameters into an actuator, adjusting it, and outputting new environmental data; and using a feedforward control module to adjust in advance when a door opening / closing disturbance warning is issued, dynamically adjusting the status of the affected space layer. This invention improves the temperature and humidity control accuracy and disturbance adaptability of the cigar cabinet through hierarchical optimization and feedforward intervention control mechanisms.

The invention relates to a perovskite solar cell. The perovskite solar cell comprises a perovskite light absorption layer and a light-emitting passivation layer arranged on the surface of the perovskite light absorption layer, and the light-emitting passivation layer has a zero-dimensional perovskite structure. The light-emitting passivation layer with the zero-dimensional perovskite structure has excellent environmental stability and is beneficial to protecting the perovskite light absorption layer, so that the environmental stability of the solar cell is improved, the high photoluminescence quantum yield of the light-emitting passivation layer is beneficial to reducing non-radiative recombination of current carriers, the efficiency of the solar cell is improved, and the service life of the solar cell is prolonged. Moreover, the introduction of the light-emitting passivation layer can prolong the service life of carriers of the solar cell, prolongs the transmission time of the carriers, and improves the photoelectric conversion efficiency of the solar cell.

The application discloses a kind of solid electrolyte material and its preparation method, positive pole piece, solid electrolyte film and full solid battery, it is related to solid battery field;Method comprises: lithium lanthanum zirconium oxygen base solid electrolyte is dispersed in first solvent, and electrolyte dispersion liquid is made;Acidic pH regulator is added to the electrolyte dispersion liquid, and the pH of the electrolyte dispersion liquid is adjusted to 7~8, and neutral dispersion liquid is obtained;Orthosilicate is added to the neutral dispersion liquid and mixed to obtain dispersion solution;During mixing process, polysiloxane is formed by the reaction of orthosilicate, and polysiloxane is coated on the surface of lithium lanthanum zirconium oxygen base solid electrolyte;The dispersion solution is subjected to electrolyte separation and drying treatment to obtain a solid electrolyte material.The application aims to improve the surface properties of lithium lanthanum zirconium oxygen base solid electrolyte, so that it can build good interface contact with other inorganic materials.

The invention discloses a hot-coated high-barrier heavy-wrapping roll film and a preparation method thereof. Belongs to the technical field of packaging materials. The roll film sequentially comprises an outer-layer base material film, a middle barrier layer and an inner-layer heat sealing film. The middle barrier layer is formed by drying and curing nano-composite barrier liquid coated on the inner surface of the outer-layer base material film; the nano-composite barrier liquid comprises polyvinyl alcohol, a surface-modified inorganic nano-material dispersion liquid, a polymer emulsion, a cross-linking agent and a wetting agent. After being preheated, the barrier liquid is coated by micro gravure, is dried through three stages of rapid shaping, deep crosslinking and high-temperature densification in sequence, and is finally compounded with an inner-layer heat-sealing film in a solvent-free manner. Through precise coupling of a synergistic effect among specific components and a multi-stage drying process, the roll film has excellent initial oxygen barrier property, water vapor barrier property, excellent stability in a high-temperature and high-humidity environment and high barrier stability after simulating a dynamic mechanical load of heavy packaging and transportation.

This invention relates to the field of insulating materials for porous copper foil preparation, and particularly to an insulating material for porous copper foil preparation and its preparation method, as well as a method for preparing porous copper foil. The preparation method includes the following steps: perforating a cathode plate to obtain a cathode plate with multiple blind holes; filling the blind holes with an insulating material for porous copper foil preparation, and curing it to obtain a pretreated cathode plate; the raw materials for the insulating material are: resin, reactive diluent, thixotropic agent, leveling agent, polymerization inhibitor, and photoinitiator. The pretreated cathode plate is used as the cathode and placed in an electrolyte for electrodeposition to obtain porous copper foil. When preparing porous copper foil with the insulating material, the filling material in the blind holes can withstand more than 80 electroplating cycles without peeling off, indicating that the insulating material for porous copper foil preparation possesses excellent adhesion and electrolyte environment durability, enabling a single-filled cathode to support stable electrodeposition over an ultra-long period, significantly extending its effective service life.

This application discloses a wide-bandgap perovskite solar cell based on fullerene derivatives, a tandem solar cell, and a method for fabricating the same, belonging to the field of perovskite solar cell technology. A wide-bandgap perovskite solar cell based on fullerene derivatives includes a conductive substrate, a first hole transport layer, a self-assembled monolayer, a wide-bandgap perovskite light-absorbing layer, a fullerene derivative electron transport layer, a first electron modification layer, and a first metal electrode layer, sequentially stacked. The molecular formula of the wide-bandgap perovskite is FA. 0.5‑1.0 Cs 0.1‑ 0.3 PbI 1.5‑2.0 Br 1.0‑1.5 The fullerene derivative is 5'-Phenyl-5'. H -[5,6]fullereno-C 60 - I h -[1,9:2',3']pyrido[3,2- b [indole. Through the synergistic effect of electron transport, defect passivation, and thin film stability enhancement, the optoelectronic performance and long-term operational stability of wide-bandgap perovskite and all-perovskite stacked devices are significantly improved.]

The invention relates to the technical field of high-activity metal powder, in particular to high-environmental-stability aluminum-lithium alloy powder and a manufacturing method and application thereof.The high-environmental-stability aluminum-lithium alloy powder comprises, by weight, 1.0-10.0 wt.% of Li, 1.0-10.0 wt.% of Al, 1.0-10.0 wt.% of Ti, 1.0-10.0 wt.% of Ti, 1.0-10.0 wt.% of Ti, 1.0- 0.1 to 5.0 wt.% of Zr; 0.01 to 2.0 wt.% of Ti; 0.05 to 3.0 wt.% of RE; wherein RE is a rare earth element and at least comprises Y, Ce, La or a combination thereof, the sum of Zr, Ti and RE does not exceed 8.0 wt.%, and the balance is Al and inevitable impurities. The method has the effect of improving the use stability and the machining consistency of the aluminum-lithium alloy powder.

This invention discloses an integrated operating room air conditioning system, belonging to the field of medical clean air conditioning technology. It includes a fresh air handling unit, an integrated clean room unit, and an automatic control system. The integrated clean room unit includes at least one operating room, each equipped with a recirculating air handling system. The fresh air handling unit is connected to the integrated clean room unit. The automatic control system is connected to the fresh air handling unit, the temperature control coil, and the recirculating fan. The fresh air handling unit is used to process the humidity of the fresh air and maintain the pressure environment of the operating room. The recirculating air handling system is used to filter and regulate the temperature of the indoor recirculated air. Through this invention, a fresh air handling unit, an integrated clean room unit, and an automatic control system are configured. The fresh air handling unit is dedicated to fresh air humidity regulation and pressure compensation. The integrated clean room unit is equipped with a recirculating air handling system and an integrated temperature control coil for indoor temperature regulation, thereby achieving temperature and humidity control.

The invention belongs to the technical field of flexible electronic materials, and particularly relates to a multi-layer composite transparent electrode for a flexible substrate and a preparation method of the multi-layer composite transparent electrode. The electrode sequentially comprises a stress buffer layer, a transparent core layer and an interface optimization layer from the surface of the flexible substrate; the stress buffer layer is zinc oxide-tin oxide composite nanoparticles grafted with a silane coupling agent; the transparent core layer is a silver nanowire network of which the surface is coated with a tin-doped indium oxide shell layer; and the interface optimization layer is a molybdenum oxide and tungsten oxide blended film formed by controlling oxygen partial pressure. Through combination of multilayer material design and a low-temperature preparation process, the electrode has the characteristics of high light transmittance, low sheet resistance, excellent bending resistance, strong interface adhesion and high work function, and is suitable for flexible display and wearable electronic devices.

The invention discloses a zero-dimensional indium-based organic-inorganic hybrid perovskite material and a synthesis method thereof, and belongs to the technical field of photoelectric materials, the perovskite material has a general formula, R is one or more organic cations selected from methylamine, formamidine and cesium, and X is one or more halide ions selected from methylamine, formamidine and cesium; the invention further discloses a synthesis method of the material, the synthesis method comprises the steps of precursor solution preparation, coordination regulation and control, solvothermal reaction, product separation, surface modification, purification and drying, and the crystal structure and the surface chemical environment are precisely regulated and controlled through the synergistic effect of coordination regulation and surface passivation. The photoluminescence quantum yield of the material reaches 82% or above, and the material has excellent luminescence performance in a solution state, has ultrahigh environmental, water and thermal stability, and is lead-free, non-toxic and environment-friendly; the material can be widely applied to the photoelectric fields of light emitting diodes, X-ray scintillators, photocatalysis and the like, and the device performance is excellent.

The invention belongs to the technical field of biological medicines, and discloses an artificially synthesized antibacterial peptide, a derivative thereof and an application of the artificially synthesized antibacterial peptide in resisting escherichia coli. The antibacterial peptide provided by the invention has a strong inhibition effect on escherichia coli and comprises multiple drug-resistant strains. Experiments show that the antibacterial peptide has high in-vitro antibacterial activity, excellent thermal stability, acid-base stability and no hemolytic activity, has no obvious toxicity to mammalian cells, and shows a remarkable treatment effect in a chicken escherichia coli infection model. The invention provides a novel antibacterial preparation for coping with escherichia coli, especially infection of drug-resistant strains.

The invention discloses a preparation method of a CTAB (Cetyltrimethyl Ammonium Bromide) magnetic biochar composite material and application of the CTAB magnetic biochar composite material in adsorption removal of aged nano-plastics in water, and belongs to the technical field of water treatment. The preparation method of the CTAB magnetic biochar composite material comprises the following steps: performing pyrolysis carbonization on biomass in an inert atmosphere to obtain original biochar (BC); mixing a ferric salt solution with the original biochar, and carrying out a co-precipitation reaction under an alkaline condition to obtain magnetic biochar (MBC); and mixing the magnetic biochar with hexadecyl trimethyl ammonium bromide in water, and carrying out surface modification to obtain the CTAB magnetic biochar composite material (CTAB / MBC). The composite material has multiple adsorption mechanisms through surface modification, can efficiently and stably remove nano-plastics generated by different aging paths, and has good magnetic separation performance, cycle performance and environment anti-interference capability.

The invention relates to a preparation method of a composite material embedded optical fiber leading-out end protection structure. The preparation method comprises the following steps: covering a laid optical fiber and one end of an inner-layer protection tube with an upper-layer prepreg and a lower-layer prepreg; and then a thermoplastic pipe is sleeved outside the inner-layer protection pipe, so that the thermoplastic pipe at least wraps the part of the inner-layer protection pipe, which is not covered by the prepreg. The aramid fiber pipe has the advantages that the aramid fiber pipe has high toughness, high impact resistance and good compatibility with a composite material, the part, embedded in the plate, of the aramid fiber pipe can form tough combination with a resin body, point stress at an outlet is dispersed into surface stress, and stress concentration is effectively relieved.

The invention provides a multi-layer quantum dot film and a preparation method and application thereof.According to the preparation method of the multi-layer quantum dot film, layer-by-layer deposition and a light / heat double-trigger mild cross-linking strategy are combined, and rapid cross-linking curing is achieved through low-temperature (smaller than or equal to 100 DEG C) or low-dose light irradiation; irreversible damage of a quantum dot crystal structure or film deformation can be avoided, the method is suitable for ensuring flexible substrates and large-area preparation, and the thickness of the film is precisely controllable within the range of 50-500 nm; the thin film is uniform and compact, the AFM surface roughness is smaller than 3 nm, precise, high-quality and rapid preparation of the short wave infrared (SWIR) quantum dot thick film is achieved, and when the prepared thin film is applied to a photoelectric device, high detection rate (for example, the detection rate of a photoelectric detector reaches the 1012 Jones magnitude) and excellent long-term environment stability can be achieved.

This invention discloses a method and system for optimizing stereoscopic vision on naked-eye 3D large screens, specifically relating to the field of naked-eye 3D vision optimization technology. The method includes: real-time perception of ambient light and viewer position through multi-sensor fusion to establish an ambient light field model; prediction of glare crosstalk noise based on physical simulation, and adaptive suppression and compensation combining human visual sensitivity and image content features; dynamic generation of a virtual camera based on the viewer's real-time binocular positions, and real-time re-rendering using a lightweight neural radiation field renderer to achieve motion parallax; finally, intelligent fusion and encoding of the glare compensation layer and perspective correction layer, and outputting the result to the screen. The system includes four main modules: environmental perception, glare compensation, perspective rendering, and fusion encoding. This invention effectively suppresses ambient light interference, improves the quality and immersion of stereoscopic images from different viewing angles, and is suitable for naked-eye 3D large-screen displays in outdoor and complex lighting environments.

The application provides a surface topography measuring device and method, and an object surface height calculation method, and applies to the technical field of optical precision measurement, and comprises a fiber F-P interference measuring head and a three-dimensional displacement table; the fiber F-P interference measuring head is composed of a fiber head array and a microlens array, and an object to be measured is fixed on the three-dimensional displacement table; a light beam is transmitted to the fiber F-P interference measuring head, is emitted from an exit surface of the microlens array after passing through the fiber head array and the microlens array, and is collimated and irradiated to the surface of the object to be measured; and the three-dimensional displacement table drives the object to be measured to perform three-dimensional movement to measure the surface topography of the object to be measured. Through the scanning measurement scheme of the combination of the fiber head array and the microlens array and the three-dimensional displacement table, the problems of small measurement range and slow measurement speed of the fiber F-P interference measuring head are solved, the measurement range and the measurement speed of the fiber F-P interference surface topography detection product are improved, and the cost thereof is reduced.

This invention belongs to the field of spectral analysis technology and relates to a liquid crystal metasurface composite blazed angle grating and a spectrometer. The liquid crystal metasurface composite blazed angle grating includes a planar substrate, a photo-alignment layer, and a liquid crystal layer stacked sequentially from bottom to top. The photo-alignment layer uses a photosensitive alignment material, and when irradiated by polarized light, its surface forms a molecular alignment pattern matching a preset composite phase distribution. The liquid crystal layer uses a high birefringence nematic liquid crystal material, and its internal liquid crystal molecules are arranged under the control of the molecular alignment pattern of the photo-alignment layer to form a liquid crystal metasurface structure matching a preset composite phase distribution. When composite light passes through the planar substrate and irradiates the liquid crystal metasurface structure, the liquid crystal molecules generate differentiated phase modulation of incident light of different wavelengths according to the gradient of the preset composite phase distribution, so that incident light of different wavelengths is diffracted and deflected at different angles, simultaneously realizing the dispersion and focusing imaging of composite light, thereby forming a spectrum.

The invention relates to the technical field of starter control, and provides an intelligent starter control system and method, and the system comprises a signal sensing module, an environment information module, an intelligent decision-making unit and an execution control module. The signal sensing module collects dynamic parameters such as starter current, crankshaft rotating speed and phase in real time; the environment information module obtains static and quasi-static parameters such as the temperature of cooling liquid and the health state of a storage battery. The intelligent decision-making unit is internally provided with a trained feedforward neural network model and can diagnose the starting failure type; the execution control module controls starter power supply according to the parameter set; the method comprises the steps of parameter acquisition, initial control parameter generation, dynamic acquisition, real-time protection and restart strategy execution after failure. The problems that a traditional starting system is fixed in control parameter, poor in adaptability and low in failure retry efficiency are solved, starting reliability and environmental adaptability are improved, and the service life of parts is prolonged.

This application discloses a bipolar molecularly co-modified perovskite nanocrystal and its preparation method. After nucleation of CsPbBr3 nanocrystals, zinc bromide and 1-naphthalenesulfonic acid (NSA) are introduced for post-treatment, resulting in dual passivation and physical coating of defect states on the nanocrystal surface. Zinc bromide provides excess Br. ‑ Zn fills surface halogen vacancies. 2+ Occupy Pb 2+ Vacancy suppression of deep-level defects; NSA's sulfonic acid group -SO3 ‑ As strong coordination sites, they replace and firmly anchor weakly bound oleic acid / oleylamine ligands to the surface, and their aromatic ring structure stabilizes the surface through cation-π interactions. Zinc bromide and NSA work synergistically to achieve efficient and deep passivation of surface defect states of CsPbBr3 nanocrystals. Perovskite nanocrystals exhibit high photoluminescence quantum yield, narrow fluorescence peak, and uniform size distribution, and are stably dispersed in organic solvents for a long time. The ligands on the nanocrystal surface are firmly bound, improving optical and structural stability, and the process is simple and efficient.

The utility model belongs to the technical field of communication safety, and particularly relates to an anti-interference infrared laser one-way leading-in device suitable for high-safety secret communication and other data isolation transmission scenes, the anti-interference infrared laser one-way leading-in device comprises a receiver closed shell, a blocking film is arranged on the inner side wall of the receiver closed shell, and a narrow optical window is formed in one side of the receiver closed shell. A laser receiving device is arranged on the inner wall in the direction of the other side, opposite to the narrow optical window, of the receiver closed shell, and a multi-layer structure filtering membrane and a secondary filtering grid are sequentially arranged between the narrow optical window and the laser receiving device. According to the utility model, through dual mechanisms of optical angle limitation and spectral absorption, an interference path is cut off structurally, the anti-interference capability is improved remarkably, and the risks of scattered light interference and transmission information eavesdropping are reduced greatly.

The application provides a perovskite solar cell doped with 3-amino-2-thiophene methyl formate and a preparation method thereof. The amino group, the ester group, the nitrogen atom, the oxygen atom and the sulfur atom on the thiophene in the 3-amino-2-thiophene methyl formate can be coordinated with cation and anion vacancy defects in the perovskite to synergistically passivate defects on the surface and the grain boundary of the perovskite crystal, reduce trap state density, inhibit non-radiative recombination of the perovskite film and prolong carrier lifetime. The introduction of the dopant can promote the growth of a high-quality perovskite film, obtain a perovskite film with better crystallinity and fewer grain boundaries, promote light absorption and carrier transport and improve the photoelectric conversion efficiency of the doped perovskite solar cell. The 3-amino-2-thiophene methyl formate can also improve the hydrophobicity of the perovskite film and the aging resistance of the perovskite film under the conditions of light, heating, water vapor and oxygen, and improve the environmental stability, light stability and thermal stability of the doped perovskite solar cell.

The invention discloses a chitosan composite coating solution as well as a preparation method and application thereof, and belongs to the technical field of seed coating agents. A mixed solution of chitosan and citric acid is mixed with a tannic acid solution, a network structure is formed through intermolecular self-assembly, and the chitosan composite coating solution is obtained. The chitosan composite coating solution provided by the invention can exert effects through multiple action mechanisms, including antibiosis and seed germination promotion, so that synergistic promotion of seed germination and early growth of seedlings is realized, and the requirements of green agricultural development are met.

The invention relates to an attached photoelectric health monitoring device and method based on a photoelectric detector, and the device comprises an ultrathin flexible substrate which is made of Parylene-C; the S-shaped interconnection electrode is formed on the ultrathin flexible substrate; the perovskite photoelectric detection layer with the two-dimensional Ruddlesden-Popper structure is regionally deposited on the snakelike interconnected electrode, and the general formula of the perovskite photoelectric detection layer is (PEA) 2 (MA) < n > < 1 > Pb < n > I < 3 > < n > < 1 >; the LED light source is arranged on the ultrathin flexible substrate, and the LED light source and the two-dimensional Ruddlesden-Popper structure perovskite photoelectric detection layer are located on the same plane to form a reflective detection mode; and the packaging layer covers the two-dimensional Ruddlesden-Popper structure perovskite photoelectric detection layer and the LED light source, the material of the packaging layer is Parylene-C, and the packaging layer and the ultrathin flexible substrate jointly form a symmetrical double-layer packaging structure. Compared with the prior art, the invention has the advantages of high fitness and comfort, high sensitivity, quick response, high environmental stability and mechanical durability, low power consumption, high signal-to-noise ratio, high signal quality and detection precision and the like.

The utility model relates to a rubber bushing for automobile, including metal core shaft, metal outer tube and the rubber buffer body between metal core shaft and metal outer tube, bushing still includes the transition body of setting between rubber buffer body and metal outer tube, and the transition body includes rubber body and reinforcing body, rubber body sets up at rubber buffer body periphery, and reinforcing body sets up in rubber body, and reinforcing body is annular, and reinforcing body is provided with one or more, when reinforcing body is provided with a plurality of, a plurality of reinforcing body is distributed along the height direction of bushing in proper order. The utility model provides a rubber bushing for automobile, sets up the transition body, from metal outer tube, transition body to rubber buffer body, forms modulus gradient, disperses most interface stress mutation, and the buffer modulus mutation eliminates the early failure risk caused by stress concentration, under the premise of controlling cost, prolongs the fatigue life of bushing, satisfies the long -term use demand of automobile.

A non-adhesive housing for a data cable, the data cable itself, and an assembly method thereof are disclosed, belonging to the field of data cables. The non-adhesive housing includes: a metal shielding shell for housing the internal structure of the data cable connector; an outer protective shell fitted over the metal shielding shell; a one-way locking structure disposed between the metal shielding shell and the outer protective shell for forming a mechanical lock that prevents the outer protective shell from detaching in the reverse direction when it is fitted over the metal shielding shell in the assembly direction; and an elastic sealing sleeve fitted over one end of the metal shielding shell, wherein the elastic sealing sleeve and the inner wall surface of the outer protective shell form a detachable adsorption fit. The assembly process is simple and quick, requiring no waiting for adhesive curing, thus improving production efficiency and ensuring reliable connection.

This invention discloses broad-spectrum antibacterial peptides WP-4 and WP-6, their compositions, and applications, belonging to the fields of antimicrobial peptide technology and biomedicine. This invention obtains a series of antimicrobial peptides by truncating and rationally modifying template peptides to balance the relationship between charge number, hydrophobicity, and amphiphilicity. By measuring antibacterial activity, stability, hemolytic activity, and cytotoxicity, two novel antimicrobial peptides, WP-4 and WP-6, with high activity and low toxicity were obtained, and their amino acid sequences are shown in SEQ ID NO. 5 and SEQ ID NO. 7. The novel antimicrobial peptides obtained by this invention possess broad-spectrum antibacterial activity, good stability under temperature, pH, salt ion, pepsin, and serum conditions, and exhibit no significant hemolytic activity and low cytotoxicity. They are characterized by rapid bactericidal action and low likelihood of inducing drug resistance. Furthermore, the antimicrobial peptides of this invention can enter cells and have a strong inhibitory effect on intracellular bacteria, showing broad application prospects.

This disclosure provides a method and apparatus for angle measurement, a scanning device, and a lidar. The angle measurement method includes: a first angle sensor outputting a first signal; determining a first angle set based on the first signal, the first angle set including a first angle value and a second angle value; a second angle sensor outputting a second angle set; determining correction parameters for the first angle sensor based at least on the first angle value, the second angle value, and the second angle set; and determining the rotation angle of a rotator based on the first signal and the correction parameters.