31results about How to "Not subject to time" patented technology

The invention relates to a thermal power plant coal inventory measuring and calculating method based on a four-axis aircraft. The method includes the following steps that (1) laser distance measurement is conducted over a coal pile, the straight-line distance h between an acquisition point over the coal pile and a surface point of the coal pile is measured, the straight-line distance between the acquisition point and the horizontal plane of a place where the coal pile is located is H, the straight-line distance z between the surface point of the coal pile and the horizontal plane of the place where the coal pile is located is equal to H-h, and meanwhile, horizontal coordinates x and y of the acquisition point are acquired through a GPS positioning module; (2) the step (1) is repeated, so that the straight-line distances between multiple acquisition points over the coal pile and multiple surface points of the coal pile and horizontal coordinates are acquired, the straight-line distances between the surface points of the coal pile and the horizontal plane of the place where the coal pile is located are acquired through the straight-line distances between the acquisition points over the coal pile and the surface points of the coal pile, and therefore a coal pile vertical view outline is drawn; (3) the approximate size of the coal pile is calculated through the straight-line distances between the surface points of the coal pile and the horizontal plane of the place where the coal pile is located and the horizontal coordinates of the acquisition points. The method is suitable for measurement conducted in various environments and large-area region measurement can be achieved.

The invention discloses a LAN-based online desulfurization maintenance method and system for substation storage batteries. The current, voltage, and internal resistance of the storage battery are collected and fed back to a control unit. Send the collected battery information to the base station, and transmit the information received by most of the base stations in the substation to the background server by establishing a star-shaped local area network, and the background server transmits the data to the master control center through the Internet to form a A private Internet of Things for battery performance detection alone. The system includes a monitoring unit, a control unit, a charging desulfurization unit, a battery, a base station, a background server, and a master control center. The present invention establishes a private Internet of Things mode to enable online desulfurization of the battery The system is more intelligent and automatic, and realizes remote online comprehensive monitoring of large-scale unattended substations, which is not affected by time and region, and the data transmission is stable and timely.

The invention relates to the fields of genetic engineering and microbial fermentation, and discloses a recombinant strain producing terpenoids, a construction method thereof, and a method and application for fermenting terpenoids. The recombinant strain is obtained by genetic engineering of the starting strain, and compared with the starting strain, the activity of α-humulene synthase and the flux of mevalonate pathway and acetyl-CoA are respectively enhanced in multiple organelles of the recombinant strain, Or enhance the activity of squalene synthase and the flux of mevalonate pathway and acetyl-CoA, respectively; wherein, the multiple organelles of the recombinant strain include the cytoplasm and peroxisome, and the cytoplasm and peroxisome are respectively Contains a gene encoding α-humulene synthase, or a gene encoding squalene synthase, respectively. The recombinant strain provided by the invention can effectively increase the output of α-humulene or squalene, and has the advantages of raw material regeneration, mild conditions, green production, and is not restricted by time and place.

The invention provides an air purification agent special for a haze prevention window screen. The air purification agent special for the haze prevention window screen is composed of, by mass, 0.5-10% of grease, 0.1-0.5% of plant essential oil, 0.5-5% of viscous matter, 5-20% of surface active agents, 3-20% of hydrotropy agents (ethyl alcohol or isopropanol), 5-10% of wetting agents (glycerinum, sodium lactate and the like), 1-10% of antifreezing agents (glycol, propylene glycol or glycerinum) and 20-80% of deionized water. The invention further relates to a preparation method and application of the air purification agent special for the haze prevention window screen. The air purification agent has the special film formation and adhesion functions, can capture particulate matter going out or coming into the window screen, directly blocks the haze particulate matter out of a window to achieve the purpose of purifying the indoor air, and has the functions of sterilization, desinsectization and the like.