12results about How to "Meet quantity requirements" patented technology

The utility model relates to the technical field of mobile communication, in particular to a multi-band antenna end cover and a multi-band antenna. The end cover comprises a main cover plate, a first side cover plate and a connector, one side edge of the main cover plate is perpendicular to the main cover plate and extends outwards to form the first side cover plate, and a first notch matched with the first side cover plate in size is formed in the lower end of the corresponding side plate on the radome. The main cover plate and the first side cover plate are each provided with a plurality of connectors used for being connected with an external connector. According to the multi-band antenna, the first side cover plate is arranged and the connectors are dispersedly arranged on the main cover plate and the first side cover plate, so that the requirement of the multi-band antenna on the number of the connectors along with the increase of working bands can be met, the distribution of the connectors is not too dense, and compact layout and efficient integration of the multi-band antenna are realized.

The utility model relates to the technical field of air valves, and particularly provides a scavenging air valve module and a combination valve. A containing groove is formed in the air valve shell, and a sliding rod and a memory alloy strip are arranged in the containing groove. The sliding rod is arranged in the containing groove in a penetrating mode, and one end of the sliding rod is provided with a sealing structural part. The memory alloy strip is electrified to deform and drives the sliding rod to slide in the extending direction of the containing groove, and the sliding rod drives the sealing structural part to get close to and block the air-bleed hole. Or, the memory alloy strip is powered off to deform and drives the sealing structural part to be far away from the vent hole through the sliding rod, so that the vent hole is opened. The telescopic characteristic of the memory alloy strip is used as a power source, the structure of the air valve is simplified, the size and weight of the air valve are effectively reduced, and the manufacturing cost can be reduced.

A combined floating mat structure for mounting a water pump comprises a water guide pipe fixedly connected with the water pump, a mounting flange is fixedly arranged on the outer wall of the water guide pipe, a mesh enclosure assembly covering the water pump is fixedly arranged at the bottom of the mounting flange, and a plurality of mounting plates distributed in a circumferential array are fixedly arranged at the top of the mounting flange. Buoys are fixedly arranged at the top of the mounting plate, and splicing structures matched with the adjacent buoys are fixedly arranged at the two ends of each buoy; a water pump and a plurality of buoys are installed on an installation flange to form a floating mat assembly, the number requirement of the water pump needed in different scenes is met by selecting the number of the floating mat assemblies, and the requirement for the distance between the water pumps in the different scenes is met by selecting the buoys with different lengths. The length specification of the mesh enclosure assembly is changed by increasing or decreasing the number of the mesh enclosure shaft sections so as to meet the protection requirements of water pumps of different specifications, the assembly mode is simple, and the water pumping requirements of various different scenes can be met.

The utility model relates to the technical field of lifting devices, and discloses a lifting device for a granulator hob grinder, which comprises a workbench, two T-shaped grooves which are arranged in a penetrating manner are arranged at the upper end of the workbench, lifting plates are connected in the two T-shaped grooves in a sliding manner, and limiting pieces are arranged at the side ends of the two lifting plates. The upper ends of the two lifting plates are both fixedly provided with motor mounting plates, the two motor mounting plates are both connected with second mounting plates through sliding parts, the opposite side ends of the two second mounting plates are both fixedly provided with hob clamps, and the opposite side ends of the two second mounting plates are provided with pushing parts. A traditional sequential grinding mode of a single grinding machine is changed, operators can conveniently assemble and disassemble hobs, assembly, disassembly and grinding are seamlessly connected, the operators do not need to wait for completion of grinding to carry out next operation, frequent feeding and discharging actions are reduced, labor intensity is lowered, and operation convenience is improved.

The invention discloses a method for obtaining and separating primary hepatic tumor cells and application thereof, and relates to the technical field of cytobiology, tumor research and antitumor drug development, the method is characterized in that MYC and AKT double genes are adopted in a mouse body to drive and induce liver cancer, and the primary hepatic tumor cells are obtained and separated from obtained liver cancer tissues. And the stable mouse liver tumor cell line (MLAML-1001D) is established and obtained. The liver cancer model constructed by double-gene driving has a complete tumor microenvironment, and highly simulates and restores the physiological microenvironment of liver cancer of clinical patients in the aspects of interaction of tumor cells and stromal cells, interaction of cells and extracellular matrix, interaction of tumor cells and immune cells and the like; therefore, a more accurate and efficient model is provided for researching growth, invasion and metastasis mechanisms of liver cancer and screening and evaluating liver cancer related drugs.

The invention discloses a saline-alkali soil precision desalination device, which relates to the field of soil technology. The upper front side of the desalination box is fixedly connected to the lower end of the pH detection box, and a quantity control chute is provided on the upper front side of the desalination box. The inner wall of the quantity control chute is slidably connected to the outer wall of one end of the quantity control frame, and the right side of the desalination box is fixedly connected to the lower end of the desalination box. The advantages of the invention are: for different soil conditions, the pH value of the saline-alkali soil can be quickly detected by the pH detection box, and the weight information support of the desalination block placed by the user is provided by using the quantity scale according to the corresponding relationship between the soil pH value and the soil salinity and alkali content, and the position of the quantity control plate and the quantity limit plate is controlled by the quantity control frame to adjust the weight of the placed desalination block, so that the device can be placed according to the actual demand. The corresponding number of desalination blocks is placed for precise desalination. Compared with the existing desalination equipment on the market, it can reduce the waste of desalination blocks and improve the utilization rate of desalination blocks.

The application provides a proliferation culture medium for long-term stable passage of bovine cells, a method for promoting long-term stable passage of bovine cells and application. The components of the proliferation culture medium include complete culture medium, cycloastragenol and metformin hydrochloride. Research shows that the proliferation culture medium can make bovine fetal fibroblasts (BFFs) break through the proliferation limit in the process of in-vitro passage culture, form a continuous cell line, and be beneficial to the production of cell culture meat products of excellent quality. The culture medium provided by the application can support the continuous passage of BFFs to 145 generations, and the cell type of the bovine fetal fibroblast cell line passed to 145 generations is unchanged, having the advantage of long-term stable passage. The induction by the proliferation culture medium can make BFFs break through the aging limit, realize long-term stable passage (≥100 generations) and maintain a positive rate of >90% of vimentin, meet the demand of cell culture meat mass production for the number of cells, and have very broad application prospects.

The present specification provides a table building method and device, electronic equipment and storage medium, the method comprises: receiving a virtual table creation request initiated by an application for an application table maintained by itself, the virtual table creation request is used to indicate that a virtual table corresponding to the application table is created in a first physical table; create the virtual table in the first physical table partition maintained by any storage node, and record the metadata of the virtual table in the physical table partition maintained by the any storage node, the virtual table is used to record the data corresponding to the application table.

This utility model relates to the field of classified cable fixing bracket technology, and more particularly to a classified cable fixing bracket, including a receiving base plate, a connecting mechanism, a connecting component on the top of the receiving base plate, an abutment component inside the connecting component, and a sorting component inside the abutment component. Through the sliding cooperation between the fixed slide rail in the sorting component and the classified cable tray, independent placement areas can be flexibly divided according to cable type and diameter, avoiding signal interference or poor heat dissipation problems caused by the mixing and tangling of different cables. The clamping structure composed of the top shell, sliding rod, abutment plate, and connecting spring can provide appropriate and continuous clamping force for cables of different specifications. Combined with the lateral limiting of the abutment block and the longitudinal locking of the buckle plate in the abutment component, it effectively prevents cables from loosening or shifting under vibration, thermal expansion and contraction, etc., significantly improving the standardization of cable laying and the stability of system operation.

The present application relates to a method, device, medium and equipment for determining photon emission parameters, the method comprising: obtaining power of photons when the photons arrive at a receiving end from a transmitting end via free space; determining power loss of the photons occurring in a transmission process of the photons from the transmitting end to the receiving end via the free space, the power loss comprising power loss of the photons occurring on an optical device in the transmitting end, power loss of the photons occurring in the free space and power loss of the photons occurring on an optical device in the receiving end; and determining emission power of the photons at the transmitting end based on the power of the photons when the photons arrive at the receiving end from the transmitting end via the free space and the power loss occurring in the transmission process. The present application can determine photon emission parameters matched with different receiving ends of a distributed quantum computer based on the different receiving ends, so as to ensure that the receiving ends can receive sufficient photons to meet the requirements of the receiving ends on the number or power of the photons.

The utility model discloses a combined openable low -voltage cabinet waterproof heat dissipation top cover, including a plurality of front roof and rear roof, and the top cover is connected through top cover welding spare front part, top cover welding spare rear part and the top cover that is provided with the heat dissipation hole on the front roof, is equipped with a plurality of lifting rings on the front roof and rear roof, and the rear roof side part is equipped with or not equipped with lifting ring, the top cover is fixed through a plurality of self -tapping screw, and the inside of top cover is equipped with welding wire net, sealing strip and top cover lock, and the top cover is turned over through top cover hinge. The utility model provides a kind of effective natural ventilation heat dissipation mode, increase the area of top vent hole;Ensure that the internal element of electric power equipment is not damaged by moisture, strengthen the waterproof between cabinet and cabinet, satisfy the demand of different number of cabinet splicing;Effectively prevent dust from invading from top cover;Top cover front and rear two -segment type split structure is equipped with hinge door lock and is convenient to open, and the installation of main busbar when cabinet splicing is facilitated.

The invention discloses simulation ATP vehicle-mounted equipment based on a real radio station. The simulation ATP vehicle-mounted equipment mainly comprises a main control unit, a display unit, a communication unit and a vehicle-mounted simulation environment, wherein the main control unit realizes calculation and logic control functions, the display unit realizes a man-machine interface interaction function, the communication unit realizes a data transmission function, and the vehicle-mounted simulation environment realizes a vehicle-mounted equipment external environment simulation function. The application logic of the main control unit of the simulation ATP vehicle-mounted equipment is kept consistent with that of real ATP vehicle-mounted equipment, and the real ATP can be effectively replaced in a line pull-through test and a scene test of a high-speed rail train control system simulation laboratory; meanwhile, the cost of purchasing real vehicle-mounted equipment is saved, the requirement of a laboratory for the number of the vehicle-mounted equipment is met, and the efficiency, depth and breadth of system testing are effectively improved.