4results about How to "Same conditions" patented technology

The invention relates to a control method for efficient culture of photosynthetic organisms, which realizes efficient growth of phycomycetes photosynthetic organisms by intelligently adjusting illumination and culture environment temperature. The control method for the temperature condition of the culture environment comprises the following steps: (1) monitoring the temperature in real time, regularly reading data of a temperature sensor, and transmitting the data to a central control unit; (2) setting a corresponding difference allowable threshold value according to the temperature parameter, wherein the threshold value is correspondingly set according to different biological growth conditions; and (3) after the optimal temperature growth condition is obtained, generating a specific threshold value corresponding to the current temperature environment, converting the threshold value into a control instruction, transmitting the control instruction to a temperature control unit, correspondingly controlling the temperature in the culture equipment, and carrying out constant monitoring on the temperature. By intelligently adjusting illumination and controlling the temperature of the culture environment, environment parameters can be more accurately controlled, it is ensured that photosynthetic organisms are always in the most suitable growth conditions, and the growth speed and quality of the photosynthetic organisms are improved.

The utility model relates to the technical field of optical communication testing, in particular to an insertion loss and return loss testing butt joint tool. Comprising a bottom plate, and a standard line positioning block is arranged on the bottom plate and used for positioning a standard line; a slide rail is arranged on the bottom plate, a slide block is arranged on the slide rail, and a test line positioning block is arranged on the slide block and used for positioning a test line; the slide block slides on the slide rail, so that the test line positioning block moves in the direction close to or away from the standard line positioning block; a mounting groove is formed in the standard line positioning block, and a standard line connector is arranged in the mounting groove; a limiting block is arranged on the standard line positioning block, an elastic piece is arranged on the limiting block, one end, far away from the limiting block, of the elastic piece abuts against the standard line connector, and the limiting block and the standard line connector are matched to release or extrude the elastic piece through sliding of the standard line connector in the mounting groove in the direction close to or far away from the test line positioning block. The method has the advantages that damage to the end face of the workpiece in the insertion loss test is reduced, and the test efficiency is improved.

The utility model discloses a kind of sinking flow guide scraping wall type stirring oil drum, it is related to stirring oil drum technical field, including support, motor and barrel body, the bracket side surface installs barrel body fixing frame, the barrel body fixing frame is fixed with barrel body, the bracket bottom installs brake universal wheel, the bracket side surface installs sliding rail, the sliding rail side surface installs sliding frame, the sliding frame side surface installs motor, the motor bottom installs stirring rod, the stirring rod side surface installs stirring shaft, the stirring shaft end installs scraper. Without scraping wall mechanism, suspended solid or colloid in the area close to pool wall can deposit, solidify constantly, form thick silt or scale on wall surface in a long time. The utility model passes through the continuous contact of scraper and barrel wall, scrape all adherend in real time to bottom, make wall surface keep neat, avoid the generation of any stationary layer, guarantee that entire barrel body inside always maintains consistent flow field and mass transfer condition.

This invention discloses a frequency domain synthesis method for sinusoidal superimposed random composite vibration loads, belonging to the field of engineering vibration simulation technology. It solves the technical problem that finite element analysis software cannot directly handle sinusoidal + random time-domain-frequency domain hybrid composite excitations. This method employs a frequency domain substitution superposition strategy. First, it removes the narrowband frequency band corresponding to the sinusoidal sweep signal from the basic random vibration power spectral density (PSD). Then, it replaces the energy of this frequency band with a narrowband spectrum calculated according to the sinusoidal sweep parameters, ultimately synthesizing a continuous total PSD curve with correct energy composition. Simultaneously, through broadband spectrum interpolation generation, narrowband spectrum mathematical modeling, signal substitution superposition, and post-processing steps, it achieves the conversion of the composite vibration spectrum into standardized load data recognizable by the finite element solver. This invention can accurately reproduce the load input of the vibration test bench at the simulation end, establishing a comparable and controllable bridge between experiment and simulation, improving the confidence and predictive value of simulation results, and supporting simulation-driven product design and optimization.