5results about How to "Adjustable area" patented technology

The utility model belongs to the technical field of plastic packing box, concretely relates to disposable plastic packing box and lid body structure of microwave heating, a lid body structure, including plastic packing box cover, a plurality of fixed venting slot areas are set up on plastic packing box cover, the upper side of plastic packing box cover is equipped with the baffle that can shield fixed venting slot area, a plurality of and fixed venting slot area one -to -one corresponding movable venting slot area are set up on the baffle, the baffle can be movable on the upper side of plastic packing box cover, to adjust the range of fixed venting slot area shielding of baffle, disposable plastic packing box of microwave heating, including plastic packing box body and lid body structure. The utility model can adjust the steam exhaust efficiency inside packing box according to the different of food, reach the purpose of safe pressure relief, and reduce the influence of food taste caused by excessive loss of water in food inside packing box.

The application relates to a sodium titanate nanofiber / reduced graphene oxide composite electrode material and a preparation method and application thereof. The composite electrode material has a two-dimensional sheet structure, the particle size is 1-6 mu m, the thickness is 10-20 nm, is composed of a few-layer reduced graphene oxide and sodium titanate nanofibers with a diameter of 5-10 nm loaded on the reduced graphene oxide, and is prepared by taking the few-layer reduced graphene oxide as a template, uniformly loading titanium dioxide particles, and then carrying out hydrothermal treatment in an alkali solution. Compared with the prior art, the synthesis method is simple in process, easy to scale up, and high in controllability. As a negative electrode of a sodium ion battery or a positive electrode of a sodium battery, the sodium titanate nanofiber / reduced graphene oxide composite electrode material has the advantages of high initial coulomb efficiency, low working voltage, high capacity, excellent rate characteristics and cycle stability, and has a broad market application prospect.

The application relates to the technical field of semiconductor photoelectric devices and thin film manufacturing, and particularly discloses a preparation method of a light detector based on a sputtering hybrid semiconductor thin film. The prepared light detector comprises, from bottom to top, a transparent conductive substrate, a bottom charge transport layer, a hybrid semiconductor light absorption layer, a top charge transport layer and a metal electrode. The hybrid semiconductor light absorption layer is prepared by using a magnetron sputtering process based on target self-heating. The thermal electron emission effect of the target self-heating is used to excite high-density plasma at a low working voltage, to rapidly and lowly damage the target for sputtering, and to form a dense and pure-phase hybrid semiconductor thin film. The application uses a multi-dimensional method of adjusting the cathode surface magnetic flux, adjusting the working voltage and target self-heating to improve the plasma density in the chamber. While realizing high-speed deposition of 30-500 nm / min, the hybrid semiconductor thin film defect density is reduced and the photoelectric performance of the light absorption layer is improved.

The application discloses a kind of solid supported copper-based N-heterocyclic carbene catalytic materials and preparation method and application thereof, and it is related to material synthesis technical field.The preparation method of the catalytic material includes: cuprous oxide is reacted with N-heterocyclic carbene ligand containing bromine group in solvent, and copper-based N-heterocyclic carbene complex is formed;The complex is subjected to Sonogashira coupling reaction with alkyne compound under the action of catalyst, and bromine group on the complex is coupled with alkyne compound and occurs copolymerization, forms porous organic polymer skeleton, and copper-based N-heterocyclic carbene complex is distributed in the skeleton, and solid supported copper-based catalytic material is obtained;Wherein alkyne compound is selected from 1,3,5-triethynylbenzene or 1,3,5-tri (4-ethynylphenyl) benzene.The obtained catalytic material has porous organic polymer skeleton, and copper active species is uniformly distributed in the whole material, belongs to heterogeneous catalytic material, is easy to separate and recycle, can be recycled, and shows excellent catalytic performance in alkyne alkylation reaction of trifluoromethyl ketone.

This utility model discloses a desulfurization device for waste gas from a thermal power plant. A liquid pump is installed on one side of the material tank, and a connecting pipe is connected to the outlet end of the pump. A flexible hose is connected to the lower end of the connecting pipe, and a drain pipe is connected to the lower end of the flexible hose. Spray nozzles are symmetrically arranged on the lower surface of the drain pipe. A motor is installed on the outside of the desulfurization tower, and a rotating shaft is connected to the drive end of the motor. A speed-reducing plate is also installed inside the desulfurization tower, and speed-reducing holes are opened inside the speed-reducing plate. An electric lifting rod is installed on the upper surface of the desulfurization tower, and a baffle is slidably installed on one side of the speed-reducing plate. This utility model relates to the field of waste gas treatment technology for thermal power plants. The speed-reducing holes opened in the speed-reducing plate can reduce the flow rate of the waste gas, allowing for better desulfurization inside the desulfurization tower. Simultaneously, the operation of the electric lifting rod causes the speed-reducing plate to rise and fall, thereby adjusting the area of ​​the speed-reducing holes and achieving better desulfurization.