218results about How to "Fast stability" patented technology

The invention relates to a gas analysis system and belongs to the nitrogen oxide analysis field. The system detects the concentration of nitric oxide in the atmosphere by using the power of light generated in the gaseous phase reaction between O3 and nitric oxide (NO) gas. The method is called as a chemiluminescence method. The system is used to measure the concentration of NO, NO2 and the concentration NOX in the atmosphere continuously, reacts rapidly when the concentrations of NO, NO2 and NOX change and can measures stably for a long time; the system can be applied in many conditions of different temperatures and humidity without any impact on the measurement precision. All operation control can be accomplished on an operation panel. The concentration of gas is displayed on the LCD display screen on the operation panel. In addition to the display screen on the operation panel, terminals are also provided to provide measurement output signals. A filter and a sampling instrument are arranged at accessible positions and the whole system is reliable in design and convenient to maintain.

The invention discloses a mobile phone curved glass panel and a manufacturing method of the mobile phone curved glass panel. A curved glass panel body is formed by bending a mobile phone panel body toward the same side in an arc shape with the center line of the mobile phone panel body in the X-axis direction or the Y-axis direction as a center, or bending the periphery of the mobile phone panel body toward the same side in an arc shape with the center point of the mobile phone panel as the center, or the mobile phone curved glass panel comprises a main panel and curved panels. The curved panels are formed by bending one or more side edges of the main panel. The multiple curved panels are bent toward the same side relative to the main panel. The forming method includes the three steps of manufacturing a planar glass panel, manufacturing a graphite die and forming the curved glass panel. The good lubricating performance of graphite is used, through exerting certain pressure for deformation, heat deformation is achieved at the temperature below a glass softening point, the manufactured product is high in precision, the designing requirements of a 3D mobile phone glass panel are met, large-scale industrial production can be achieved, production cost can be reduced, and the requirement for personalized and fashionable mobile phones can be met for people.

The invention discloses a multi-unmanned aerial vehicle distributed type contract auction online task planning method. The method comprises the following steps that 1, a multi-unmanned aerial vehiclecooperative patrol route planning model is set up; 2, the patrol route planning model is solved through a distributed type contract auction online task planning algorithm. According to the method, theperformance and task executing needs of multiple heterogeneous unmanned aerial vehicles are fully considered, a problem model is set up, the completely distributed type contract auction online task planning algorithm is provided for solving a problem, and multi-unmanned aerial vehicle fast task planning is achieved.

The invention discloses a Dynamic service resource scheduling method based on A genetic-ant colony fusion algorithm. The method comprises the following steps: S1, establishing a service task, and determining a dynamic service resource set; s2, selecting a genetic operator, and carrying out solving on the basis of the genetic operator to obtain an optimized solution with a high fitness value; s3, selecting an ant colony operator, carrying out transition on the genetic operator and the ant colony operator, and converting an optimization solution solved by the genetic operator into initial pheromone distribution of the ant colony operator; and S4, obtaining a scheduling scheme of the dynamic service resources based on the initial pheromone distribution. According to the method, the ant colonyalgorithm and the genetic algorithm are fused and then applied to the scheduling problem of the dynamic service resources, the utilization rate of the dynamic service resources is increased, the resource use time, cost and the like are reduced, and the production efficiency is improved. The method provided by the invention has relatively high optimization solving capability, and the iterative convergence is better than that of other algorithms and tends to be relatively high in stability. The utilization rate of resources can be improved, and the economic benefits of enterprises are increased.

The invention relates to a phosphoryl carboxylic acid propofol ester derivative which has the general formula (I). The method comprises the following steps: propofol reacts with 2-halogenated carboxylic acid and a derivative thereof by alkali to obtain corresponding ester and then the product reacts with phosphoric acid or thiophosphoric acid and the derivative thereof by dissolvent to obtain a water-soluble product or the propofol reacts with a 2-halogenated carboxylic acid phosphate ester derivative by the alkali to obtain the corresponding ester and then the ester is catalyzed, hydrogenated and salified to obtain the water-soluble product (I). The preparation method has mild reaction condition, high yield, simple operation and industrialized prospect, and a prepared oral preparation has the characteristics of high bioavailability, rapid absorption, high stability, and the like; and auxiliary materials with safety defects, such as a surface active agent, and the like can not be added into the prepared injection, thereby improving the stability of the preparation, reducing or removing injection pain, increasing the compliance of patients, overcoming the defects of propofol emulsion and having the advantage of obvious effect. The invention has the structural general formula (I).

The invention provides a network security situation prediction method based on an SA _ SOA _ BP neural network. The method comprises the steps of collecting network security data information as experimental data for preprocessing; determining a network structure of the BP neural network by using a trial-and-error method according to the input quantity and the output quantity in the experimental data; introducing a simulated annealing algorithm into the crowd search algorithm to obtain an improved crowd search algorithm; initializing a simulated annealing algorithm, finding an optimal individual by adopting an improved crowd search algorithm, calculating the fitness value of the individual through a fitness function, and optimizing the connection weight and threshold of the BP neural network; and substituting the test sample into the BP neural network to obtain a predicted value of the network security situation. According to the method, the simulated annealing algorithm is introduced into the crowd search algorithm, so that the problems that the crowd search algorithm is easy to fall into local optimum and slow in convergence are solved; and the BP neural network is optimized and improved by utilizing the advantages of the improved crowd search algorithm in speed and global search.

The preparation method for nanometer lines comprises: coating a metal on the silicon substrate; placing the gallium powder into the boat; the substrate is placed at a location away from the boat in proper distance; heating and keeping the temperature; blowing nitrogen gas into the heating furnace; after cooling the heating furnace to the room temperature; the nanometer lines are formed in the substrate. The method for preparing the sensor comprises: depositing the golden electrode on the silicon substrate with SiO2 layer; the distance between two electrodes is 1 mu m; connecting single nanometer line to the electrode; connecting the lead; making aging process. The fast oxygen response of the sensor: at first, the free carrier concentration in the nanometer is very low; by adjusting the oxygen, its electric conductance is very week; under the illumination of the ultraviolet light, the current passing through the nanometer line is increased into a certain value, it show the oxygen concentration in short time; after closing the illumination, the photo-generated carriers are fast combined, the photo-driven oxygen sensing character disappears.

The invention relates to a full-automatic high-altitude window cleaning intelligent robot. The robot comprises a self-stabilizing travelling device with good fixation performance and stability performance. The condition of jittering in the wiping process is eliminated, and the working efficiency is improved. A detachable fixing device is mounted in the middle of the upper end face of the self-stabilizing travelling device and can be disassembled and assembled conveniently. When the robot is damaged and needs to be maintained, the robot can be manually disassembled through the detachable fixing device, only the damaged part needs to be taken out and maintained, and operation is easy and convenient. An orientable conversion device is mounted at the upper end of the detachable fixing device, and the wiping angle of the orientable conversion device is adjustable, so that the robot is applicable to high-altitude glass of different angles, and the application range is wide. A window cleaning manipulator is mounted on the upper end face of the orientable conversion device. The full-automatic high-altitude window cleaning intelligent robot can achieve the full-automatic cleaning function of high-altitude glass, and a new way to full-automatic cleaning of high-altitude glass is provided.

The invention relates to a modified corn starch adhesive and a preparation method thereof. The modified corn starch adhesive is mainly composed of corn starch, hydrogen peroxide, sodium hydroxide, tributyl phosphate, borax, a dispersant, a drier, polyvinyl alcohol, water and the like. The modified corn starch adhesive has the characteristics of strong adhesion, good fluidity, non-toxicity, and tastelessness; and cardboards prepared through using the modified corn starch adhesive have the characteristics of good stiffness, fast drying speed and the like.

The invention discloses an RFID network topology method based on the multi-agent evolutionary algorithm and belongs to the field of automatic control and information technology. The method combines a multi-agent system with evolutionary computation to solve the RFID network topology problem. The method is characterized in that each agent in an agent grid is initialized according to two algorithms, and then a neighborhood competition operator, a neighborhood right-angled crossover operator, a mutation operator and a self-learning operation are designed to optimize the agents. Verification results show that the method has great advantages in terms of solving the maximum coverage rate of reader-writers, the minimum number of the reader-writers and the minimum interference rate of the reader-writers when used for evaluating and solving the RFID network topology problem and is an effective method for solving the RFID network topology problem.

The invention relates to a wind power magnetic suspension yaw motor control method based on model predictive control and belongs to the technical field of electrical engineering. According to the method, the model predictive control technology is used, and the suspension and yaw rotation processes of a magnetic suspension yaw motor is smoothly controlled in real time. When a wind direction changesand yaw is needed, firstly a rotor current converter finds an optimal control law through a cost function to control the current of a rotor, thus the rotor is suspended upwards and is maintained at asuspension equilibrium point, secondly a stator converter finds an optimal control law through a cost function to control the current of a stator, thus the yaw motor rotates to a wind position according to a specified rotation speed, at the same time the rotor converter finds an optimal control law through a cost function to control the current of a rotor, thus the rotor is maintained at the suspension equilibrium point, the coordinated control of the stator and the rotor can be realized without decoupling, the fast tracking ability and stability of a system are ensured, at the same time, theinfluence of external disturbance on system operation can be effectively suppressed, and the system performance in an entire suspension yaw rotation process is optimal in real time.

The invention relates to levamlodipine besylate crystals, a preparation method thereof and a brand-new medicinal composition containing the crystals. Characteristic peaks in an X-ray powder diffraction pattern obtained by measuring the levamlodipine besylate crystals by using Cu-K alpha rays are displayed as 8.0, 12.1, 15.4, 17.0, 19.8, 21.6, 23.0, 24.3, 25.7, 27.4, 30.7 and 33.5 degrees at 2 theta. The medicinal composition comprises the levamlodipine besylate crystals and pharmaceutically acceptable excipients, wherein the pharmaceutically acceptable excipients are microcrystalline cellulose, sodium starch glycolate and magnesium stearate. The crystals improve the dissolubility of levamlodipine besylate; and tablets prepared from the crystals have improved bioavailability.

The invention discloses a combined type seawall which comprises seawall tubular piles. A row of vertical rigid cast-in-situ large-diameter ribbed seawall tubular piles (10) exposed out of sea level (C) are piled on an outer shallow sea side (A); hydraulic fillers (30) higher than the sea level are filled in the inner sea side (B) of the large-diameter ribbed seawall tubular piles; a plurality of rows of cast-in-situ large-diameter plain barrel seawall tubular piles (20) are piled on the inner sea side (B); the hydraulic fillers (30) higher than the sea level are filled in the areas of rows of plain barrel seawall tubular piles; riprap solid bases (40) of the plain barrel seawall tubular piles and the ribbed seawall tubular piles are arranged above the hydraulic fillers; and the construction method of firstly piling a row of vertical cast-in-situ large-diameter ribbed seawall tubular piles on the shallow sea side, then hydraulically filling in the inner side and then carrying out combined type bases construction on the filled inner side is adopted. The invention has the advantages of small stone consumption, small land occupation area of seawall body, high land utilization rate, short construction period, advanced construction process, obvious environmental protection benefit and the like.

The invention relates to an underwater vehicle target area floating control method based on a double-commentator reinforcement learning technology, and belongs to the technical field of ocean control experiments. Based on a DDPG algorithm framework in deep reinforcement learning, in the underwater vehicle intelligent agent training process, previously obtained expert data are used, and the interaction data obtained by interaction of the intelligent agent and the task environment is used, so that the algorithm convergence speed is greatly improved through mixed collection of the two. Meanwhile, two groups of mutually independent commentator networks are utilized, the loss function of the actor network is obtained by respectively outputting the minimum values of Q (s, a) through the two groups of mutually independent commentator networks, and over-bias estimation existing in a reinforcement learning algorithm is effectively reduced.

The invention discloses a compact surface-enhanced Raman spectroscopy (SERS) substrate and a preparation method and application thereof. The compact SERS substrate comprises a glass slide, a polydimethylsiloxane (PDMS) coating modifying the glass slide, and compact coffee spot sediments covering the coating, constituted by hollow magnetic ZnO/ZnFe2O4@Ag nano-particles and having a certain thickness, and thus the active substrate with the surface-enhanced Raman effect is obtained; the substrate is obtained through the steps such as preparing of an enhanced Raman active material, washing of theglass slide, modifying of PDMS, and sedimentation of the Raman active material, and the substrate is prepared through a magnetic field effect and coffee ring restraining effect self-assembled sedimentation method; the method has the advantages of being convenient, simple, low in cost, easy to implement and the like; and the substrate is used for SERS detection of bacillus anthracis markers, has high detecting sensitivity and stability, can effectively monitor and analyze bacillus anthracis without directly making contact with a bacterium source, and has very huge application prospects in fields such as environments and medical treatment.

The invention relates to a process for preparing gelatine modified adhesive by using the common gelatine as principal raw material through moderate degradation, selecting a monomer containing epoxy radicals, under a finite condition, cross bonding copolymerization to obtain a binding agent produce. fine low-temperature freezing resistance property is also achieved.