52results about How to "Long service" patented technology

A LED display screen includes a case, a main board, and a plurality of LED display modules. The case has a front surface, a rear surface, and an opening provided between the front surface and the rear surface. The front surface has a window. The main board is inserted into the case via the opening, and has a front surface for displaying via the window. Each of the LED display module includes a LED display unit, a PCB driving board, and a supporting base. The LED display unit is connected electrically with the PCB driving board. The LED display unit mounts on the supporting base. The PCB driving board mounts on the supporting base. The PCB driving board is held between the LED display unit and the supporting base. The LED display modules mounts in formation on the front surface of the main board to form a united display screen.

Disclosed is an inexpensive, easy-to-install, highly durable vehicle rear side video monitoring system, which uses a CMOS image pickup device to pick up the image of the scene behind the vehicle, and a high brightness LED to provide sufficient illumination for enabling the CMOS image pickup device to pick up the image clearly.

A metallic ball pin of a ball-and-socket joint, preferably one with high load-bearing capacity, for motor vehicles with a surface ball part 22 containing grooves 60, 62 for receiving lubricant designed at one end of a pin member 10, 30, 40. To improve its functional properties and to reduce its manufacturing costs, a surface ball part 22 with a joint ball surface 25 is molded to a joint ball core portion 16 using an injection molding process.

The invention at hand concerns a novel class of gas sensors, in particular for hydrogen or hydrogen-containing fluids (gases or liquids), such as hydrocarbons, hydrogen sulphides or more complex gas mixtures or gas compositions which contain hydrogen or hydrogen compounds.

A High Electron Mobility Transistor (HEMT) device, which is formed by connecting a plurality of low power flip-chip type High Electron Mobility Transistor (HEMT) elements in parallel, or connected them in parallel and in series in combination into a tree-shaped structure, and then connecting said structure to an input terminal and an output terminal. Distances between each of the flip-chip type HEMT elements, from each element to said input terminal, and from each element to said output terminal are designed to be equal, such that powers consumed by each of the flip-chip type HEMT elements are equal, currents flowing through are evenly distributed, and heat generated is liable to be dissipated. A spike leakage protection layer, such as zinc-oxide (ZnO) amorphous layer or poly-crystal layer, is further included, hereby further enhancing the efficiency of said flip-chip type HEMT element and prolonging its service life.

The invention discloses a system for capturing Asian carps. The system comprises a tugboat, an acousto-optic generator arranged at the tail of the tugboat, and a floating fishing bed arranged at the rear of the tugboat, wherein sound and light production of the acousto-optic generator is controlled through an acousto-optic controller; the floating fishing bed is connected with the tugboat through a traction mooring rope; a sound barrier device is arranged at the front part of the floating fishing bed and is used for reflecting sound and light generated by the acousto-optic generator; during the proceeding process of the tugboat, the acousto-optic generator arranged at the tail of the tugboat is adopted to simulate sound and light rays of nature having a stimulation effect on different fish varieties of Asian Cyprinidae so as to stimulate the Asian carps in water, so that the Asian carps jump out of the water surface, naturally fall on the floating fishing bed on the condition that the floating fishing bed moves in a cooperative manner, and then are captured. According to the invention, the biological attributes of the fish varieties of Asian Cyprinidae are utilized to manually simulate sound and light illumination so as to induce the fish varieties of Asian Cyprinidae to jump out of the water surface in groups and be captured in batches, so that the ecological treatment effect of restraining biological invasion is realized.

A primary cell having an anode comprising lithium and a cathode comprising a metal doped iron sulfide and carbon particles. A cathode slurry is prepared comprising the metal doped iron sulfide powder, carbon, binder, and a liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.

The invention discloses a marine environment concrete crack repair material which is prepared from the following components in parts by weight: 30-50 parts of Portland cement, 10-30 parts of desaltedsea sand, 5-15 parts of abandoned sea fish, 10-30 parts of crustacean exoskeleton, 4-10 parts of silica fume, 2-5 parts of a corrosion inhibitor, 0.5-2 parts of an early strength agent, 5-10 parts ofan expanding agent and 0.1-0.5 part of polypropylene fiber. The above materials are suitable for marine environment concrete crack repair and can ensure the long-term marine environmental concrete service after being filled.

The present invention is a pump (100) used for applications where a solid (130) is present in wastewater and other liquids that requires cutting and reduction in size so as to pass the solid (130) through the inlet (105) to the outlet (106) of the pump (100). The pump (100) has a pump casing (104) with an inlet (105) and an outlet (106) formed therein. A drive unit (170) rotates a drive shaft (113) extending axially through the pump casing (104) to an impeller (109) and a cutter bar (102). The pump (100) is further configured with a radial cutter ring assembly (101) positioned adjacent the cutter bar (102) and the inlet (105) providing a shredding cutting action (140) of solids (145) between the rotating cutter bar (102) sliding past a radial cutter ring assembly (101) held stationary, e.g. cutting blades (160) formed in an edge (118) of the cutter bar (102) rotate across an internal surface (121) of the radial cutter ring assembly (101). The pump (100) also has an axial cutter ring assembly (103) with one or more blades (124) forming openings (126) adapted for the passage of solids (155) from the inlet (105) to the outlet (106) to provide a shearing cutting action (150) of solids (155) by a rotation of an upper surface (116) of the cutter bar (102) sliding past an axial cutting surface (153) of the blades (124) of the axial cutter ring assembly (103). The shred and shear pump (100) may be configured with a plurality of slots (128) on the internal surface (121) of the radial cutter ring assembly (101) to hold woven fibrous material for the shredding cutting action (140). The pump (100) also features improved optimized flow, cutting and reducing solids in the form of woven fibrous materials, and adjustability of the cutter housing (107) for precision and wear adjustment.

Disclosed in the present invention is a chromium-free catalyst for gas-phase fluorination and an application thereof. The precursor of the related chromium-free catalyst for gas-phase fluorination consists of a compound containing iron element, a compound containing rare earth metal element and a compound containing element A, wherein element A is one selected from Ca, Al, Mg and Ti, the precursor is subjected to calcination and fluorination treatment to obtain the chromium-free catalyst for gas-phase fluorination. The precursor of the catalyst is calcined at 400-500° C. and fluorinated with hydrogen fluoride at 350-450° C. to obtain the chromium-free fluorinated catalyst. The catalyst has characteristics of being chromium-free and environment-friendly, good catalytic activity and long life etc. The catalyst can be used for preparing hydrofluoroolefins or hydrochlorofluoroolefins from halohydrocarbons.

The invention provides a high-entropy ultrahigh-temperature zirconia-based thermal barrier coating material, a preparation method and application thereof and a zirconia-based thermal barrier coating, and belongs to the technical field of high-temperature coating materials. The zirconia-based thermal barrier coating material has the advantages of no phase change, low thermal conductivity, high thermal expansion coefficient, high fracture toughness, low sintering rate and good CMAS corrosion resistance, the zirconia-based thermal barrier coating material is used for a thermal barrier coating, a double-ceramic-layer structure is adopted, YSZ is used as a bottom layer, the zirconia-based thermal barrier coating material is used as a surface thermal barrier ceramic layer, and the thermal barrier coating material has the advantages of high thermal conductivity, high thermal expansion coefficient, high fracture toughness and good CMAS corrosion resistance. The thermal expansion mismatching between the high-entropy thermal barrier ceramic top layer and the metal bonding layer and the high-temperature chemical stability compatibility between the high-entropy thermal barrier ceramic top layer and the thermal growth oxide layer TGO layer can be effectively relieved, so that the long-life service of the thermal barrier coating within the temperature range of 1300-1600 DEG C is achieved, the thermal shock resistance cycle life is long, and the CMAS permeation corrosion resistance is good. Therefore, the material can be used for high-temperature hot end components of aero-engines or gas turbines.

The invention relates to a terrestrial digital television station system and belongs to the technical field of television signal transmitting and receiving. The terrestrial digital television station system comprises a signal processing subsystem, wherein the signal processing subsystem comprises a satellite receiving antenna, a satellite receiving decoder, an encoder, a digital exciter, a transmitter and a transmitting antenna; the satellite receiving decoder completes satellite signal receiving and decoding; the obtained video and audio signals are sent to the encoder, sent to the exciter by virtue of an ASI (asynchronous serial interface) interface, modulated into an RF (radio frequency) signal by the exciter and then transmitted to the transmitter; and the signals are subjected to power amplification by virtue of the transmitter and then are connected to a feeder by virtue of a rigid feedback element, an elbow and a flange and sent to the transmitting antenna to be transmitted out. The terrestrial digital television station system is easy to mount and can adapt to field operation tasks; meanwhile, the system is good in anti-seismic property, has good rainproof, dustproof, heat insulation, heat preservation and anticorrosion properties and can serve for a long time in wicked environments such as the wild, a mountainous area and salty air.

The invention discloses a spatial structure vibration response capturing and monitoring system based on earthquake early warning. The spatial structure vibration response capturing and monitoring system is composed of an earthquake early warning monitor, a seismometer, a computer working base station and a magnetic type wireless vibration acceleration sensor. The earthquake early warning monitor captures earthquake P-wave signals and sends earthquake triggering information picked up by the seismometer to the working base station, and the base station issues a series of commands such as vibration response data acquisition, recording, compression and return to the wireless vibration acceleration sensor. Finally, the base station uploads site vibration and steel structure response data to the cloud platform, and building safety assessment analysis is carried out. According to the characteristics of different propagation speeds of earthquake P waves and S waves and large span and wide distribution of a large-span building, by combining an earthquake P wave pickup technology and wireless communication, long-term and all-weather monitoring of the ground vibration condition of the position where a large-span space structure is located is functionally realized, and comprehensive capture of the vibration response of the large-span space steel structure after an earthquake is realized.

The invention relates to an electromagnetic valve with armature means (22) which are designed to be movable along an axial direction in a valve housing (14) as a reaction to current flowing through stationary coil means (16) and which at one axial end have sealing means (28) designed to interact with a valve seat (32) assigned to a first valve inlet (P), wherein at least one second valve inlet and/or outlet (A, R) in the valve housing can be opened to the first valve inlet (P) by action of the armature means, and wherein the sealing means are provided as sealing bodies (28) on a portion (26) of the armature means of narrowed diameter, such that the sealing body having a larger diameter compared to the narrowed portion can be moved by the movement of the armature means between sealing positions formed at both axial ends of the sealing body, wherein the sealing body (28) designed as a component separate from the narrowed portion and/or designed to be releasable therefrom has a sealing portion (42), made of a polymer and/or rubber material, and also a support portion (40) which is made of a material different than and in particular harder than the material of the sealing portion, and which is designed for force-fit connection to the armature means.

The invention relates to a high-wear-resistance high-accident-resistance secondary intermediate roll. The secondary intermediate roll is prepared from (1) 12-15 parts of C, (2) 2-6 parts of Si, (3) 2-5 parts of Mn, (4) 100-110 parts of Cr, (5) 8-12 parts of Mo, (6) 7-10 parts of V, (7) 3-5 parts of Co, (8) 1-3 parts of silicon-copper master batch wear-resistant agents, (9) 0.2-0.3 part of P, (10)0.2-0.3 part of S, and (11) 800-1000 parts of Fe and inevitable impurities. The preparation method of the secondary intermediate roll comprises the steps of (1) performing refining, pouring into ingots, electroslag remelting, forging forming according to chemical composition and weight fraction to make a rough billet, (2) conducting forging and spheroidizing annealing treatment on the rough billetto obtain a steel billet; (3) conducting rough turning and modulation treatment on the steel billet; (4) conducting quenching heat treatment on the steel billet; (5) conducting tempering treatment onthe steel billet; (6) performing refining; and (7) performing surface acoustic wave detection. According to the high-wear-resistance high-accident-resistance secondary intermediate roll, the overallhardness can reach 80-83 HSD, the overall hardness uniformity is smaller than or equal to 1 HSD, the service life is long, and the accident resistance is improved by 1.5 times or above compared with that of a traditional roll.

The present application discloses a virtual live broadcast method, device, device, and storage medium. The method includes: polling the list of live broadcast tasks used to maintain the status of the live broadcast tasks of the network live broadcast platform, when the virtual live broadcast tasks in it meet the preset broadcast start conditions , trigger the start broadcast event of the virtual live broadcast task; create a corresponding live broadcast room in response to the start broadcast event, and associate the live broadcast room with the virtual anchor account to which the virtual live broadcast task belongs; The push stream address of the stream, call the streaming media resources preconfigured for the virtual live broadcast task to push to the stream push address; add the access entry of the live room to the live room list for user access. This application realizes the seamless access of virtual live broadcasting tasks in the webcasting platform, which is especially helpful to increase the overall active user traffic of the webcasting platform during non-prime time, and to improve the traffic monetization effect.