35results about How to "Avoid cost reduction" patented technology

The invention provides a preparation method of a nanoporous amorphous-state electrocatalytic electrode, and relates to the field of electrochemical catalysis. The method comprises the following stepsthat firstly, metallic raw materials and nonmetallic raw materials are put in proportion, fused and then stirred uniformly, cooling is conducted, and an electrocatalytic electrode alloy is obtained, wherein metallic elements in the metallic raw materials comprise one or more of iron, cobalt, nickel, copper, zinc, titanium, magnesium and molybdenum, and nonmetallic elements in the nonmetallic raw materials comprise one or more of silicon, phosphorus, nitrogen, boron and carbon; secondly, the alloy obtained in the first step is fused again and subjected to quenching, and an amorphous-state electrocatalytic electrode is obtained; and thirdly, the amorphous-state electrocatalytic electrode obtained in the second step is soaked in an erosion agent for reacting, and the nanoporous amorphous-state electrocatalytic electrode is obtained. The nanoporous amorphous-state electrocatalytic electrode prepared through the method has the three-dimensional porous structure, the high specific surface area and the high-activity core-shell structure, and the electrocatalytic activity conductivity is excellent.

The invention discloses an aerosol laser radar system based on CCD lateral detection. The aerosol laser radar system comprises a CCD and at least two cylindrical mirrors which are arranged side by side, wherein included angles between axes of the plurality of cylindrical mirrors correspondingly penetrating through focuses of the cylindrical mirrors and a horizontal plane are sequentially increasedor decreased progressively, and focal lines of the cylindrical mirrors are simultaneously positioned on a CCD detection surface; and the CCD and the plurality of cylindrical mirrors are respectivelyfixed on angle adjusting mechanisms corresponding to the CCD and the cylindrical mirrors. According to the laser radar detection system, the plurality of cylindrical mirrors which are arranged side byside at different angles are adopted to receive atmospheric aerosol information of different height sections at the same time, the plurality of cylindrical mirrors are used for replacing a traditional single lens, and the CCD can detect a plurality of side-by-side light beams representing a plurality of height sections, so that the spatial resolution of detection is improved on the premise that the detection height range is ensured, and meanwhile, the precision reduction of a bottom layer and a high layer due to fisheye lens distortion is avoided.

The invention provides a movable conducting block and a solid-sealed polar pole. The movable conducting block comprises a lower conducting block, an upper conducting block, a conductive pole and flexible links, wherein the lower conducting block is provided with a first through hole; the upper conducting block is provided with a coaxial second through hole of the first through hole; the conductive pole penetrates into the first through hole and the second through hole; one end of each flexible link is fixed to the upper conducting block, and the other end of the flexible link is fixed to the lower conducting block; the flexible links are used for forming the electric connection between the upper conducting block and the lower conducting block. The movable conducting block can avoid temperature rise, and reduce the cost.

The invention discloses an operation control method, a device and an intelligent terminal of a touch pad. The method comprises the following steps: detecting the touch operation of the touch pad to obtain at least one touch position; Determining a touch trajectory when a user executes the touch operation by using each touch position and a touch time corresponding to each touch position; Determining an operation type corresponding to the touch trajectory; A corresponding control operation is performed based on the operation type. The embodiment of the invention reduces the cost of the intelligent terminal and improves the utilization rate of the intelligent terminal.

The invention provides a gas-liquid separator for a plate-type evaporator and the plate-type evaporator. The gas-liquid separator for the plate-type evaporator comprises a shell, a longitudinal separation plate, a first separation plate, a second separation plate, a liquid inlet pipe connection end, a gas outlet pipe connection end and a liquid outlet pipe connection end, wherein the longitudinal separation plate divides the internal space of the shell into two parts including a gas-liquid separation cavity and a liquid storage cavity; the gas-liquid separation cavity is divided into a gas separation region, a jetting region and a liquid separation region from top to bottom through the first separation plate and the second separation plate; the liquid inlet pipe connection end communicates with the jetting region and the exterior of the shell and is used for connecting a liquid inlet pipe which supplies refrigerating fluid to the plate-type evaporator; the gas outlet pipe connection end communicates with the gas separation region and the exterior of the shell and is used for connecting a gas outlet pipe which discharges gaseous refrigerating fluid to the exterior of the shell; and the liquid outlet pipe connection end communicates with the liquid separation region and the exterior of the shell and is used for connecting a liquid outlet pipe which conveys liquid refrigerating fluid to the plate-type evaporator. By means of the scheme, the situation that the gaseous refrigerating fluid enters the evaporator, and consequently the effective heat exchanging area of the evaporator is reduced, and the heat exchanging efficiency of the plate-type evaporator is effectively improved.

The invention discloses a preparation method of a g-C3N4/Ti4O7 composite nano material and application of same in electrocatalytic oxygen reduction. The preparation method comprises the following steps: preparing g-C3N4 by using a high-temperature annealing method, preparing a g-C3N4/TiO2 compound by using a hydrothermal reaction, and coating the surface of the g-C3N4/TiO2 compound with a layer ofPDA to form a g-C3N4/TiO2/PDA composite precursor; and finally, annealing the g-C3N4/TiO2/PDA composite precursor at the temperature of 850-1000 DEG C in an inert environment to obtain the g-C3N4/Ti4O7 composite nano material. The preparation method of the g-C3N4/Ti4O7 composite nano material is simple, low in cost and environmentally friendly, and the particle size of Ti4O7 nano particles rangesfrom 10 nm to 30 nm. When the g-C3N4/Ti4O7 composite nanomaterial is used as an oxygen reduction electrocatalyst, the g-C3N4/Ti4O7 composite nanomaterial has high oxygen reduction activity, methanoltoxicity resistance and stability, and the problems of low commercial Pt/C reserves and high cost are solved.

The invention discloses a chip-on-board (ChipOnBoard, COB) package structure, which comprises a substrate, a light emitting diode, a seal wall and a seal layer. The light emitting diode is arranged on one side of the substrate. The seal wall is arranged at the periphery of the light emitting diode and a package area is formed by the seal wall and the periphery of the light emitting diode. The seal wall has a package height on the substrate to form a package area equipped with the above package height. The seal layer is arranged in the package area to seal the light emitting diode inside the package area. By utilizing the invention, glue is prevented from overflowing out of the package area during the seal process. Meanwhile, the internal resistance and the manufacture cost are low. In addition, a process method corresponding to the package structure of the chip-on-board is also provided.

The invention relates to a solar foaming material which is prepared by raw materials by weight ratio and a method comprising the steps of: fully mixing 89-91.5% of polyether, 0.5-3.0% of silicone oil, 0.5-2.5% of foam stabilizer, 1.5-3% of catalyst, 1.5-3% of auxiliary agent and 1-4% of scaly white mica with 20-40 meshes in a reaction kettle to obtain mixture A; evenly mixing material HFC-245fa and water according to the weight ratio of 3-10: 1 to obtain mixture C; evenly mixing the mixture A and the mixture C according to the weight ratio of 1: 0.05-0.3 to obtain mixture B; mixing isocyanate and the mixture B according to the weight ratio of 1.10-1.30: 1, and then foaming by a high pressure gun with 100-150 bar; and finally, curing at 45-65 DEG C to obtain the polyurethane solar foaming material. The solar foaming material has no damage to the atmospheric ozone layer and has flame retardant function and excellent heat insulation effect.

The invention relates to an elastic radial sliding bearing with adjustable gaps. The left end and the right end of the elastic bearing are each provided with eight gaps; the outer circle of the elastic bearing is provided with two outer conical surfaces, the inner holes of a bearing outer sleeve and a bearing inner sleeve are both designed as inner conical surfaces, the bearing outer sleeve and the bearing inner sleeve are respectively matched with the outer conical surfaces of the elastic bearing through the inner conical surfaces, and the bearing outer sleeve and the bearing inner sleeve arein threaded connection; and if the clearance between the bearing and a rotor is too large in the assembling, trial running, overhauling and using processes of equipment, the bearing inner sleeve canbe screwed at any time according to the technical requirements, and the clearance between the inner hole of the bearing and the rotor can be adjusted. The elastic radial sliding bearing with the adjustable gaps avoids the situation that due to the too big clearance between the bearing and the rotor (transmission shaft) caused by design, use, manufacturing and the like, the bearing needs to be re-manufactured, and has the advantages of reducing the cost and improving the efficiency. The elastic scaling gaps are large, and serialization and standardization of the sliding bearing can be realized.Reasonable clearance adjustment can best control the temperature and vibration during operation of the bearing and the rotor.