Abstract: The invention relates to the technical field of computer-aided design of integrated circuits, and provides a two-step X-architecture Steiner minimum tree construction method for very large scale integration (VLSI). Based on the advantages of an X-architecture model and a particle swarm optimization technique, the method is implemented through two steps: (1) the stage of social learning discrete particle swarm search, which comprises: using an edge-vertex encoding strategy capable of maintaining optimal topological information of particles, designing a fitness function taking wirelength into consideration; and using a chaotic decreasing mutation strategy and a new social learning strategy to design a new discrete particle swarm update formula; and (2) a stage of wirelength optimization, which comprises: designing a local topological optimization strategy to minimize the wirelength of an X-architecture Steiner tree.

Abstract: A DRL-based control logic design method for continuous microfluidic biochips is provided. Firstly, an integer linear programming model is for effectively solving multi-channel switching calculation to minimize the number of time slices required by the control logic. Secondly, a control logic synthesis method based on deep reinforcement learning, which uses a double deep Q network and two Boolean logic simplification techniques to find a more effective pattern allocation scheme for the control logic.

Abstract: The invention relates to the technical field of computer-aided design of integrated circuits, and provides a two-step X-architecture Steiner minimum tree construction method for very large scale integration (VLSI). Based on the advantages of an X-architecture model and a particle swarm optimization technique, the method is implemented through two steps: (1) the stage of social learning discrete particle swarm search, which comprises: using an edge-vertex encoding strategy capable of maintaining optimal topological information of particles, designing a fitness function taking wirelength into consideration; and using a chaotic decreasing mutation strategy and a new social learning strategy to design a new discrete particle swarm update formula; and (2) a stage of wirelength optimization, which comprises: designing a local topological optimization strategy to minimize the wirelength of an X-architecture Steiner tree.

Abstract: A multi-stage FPGA routing method for optimizing time division multiplexing comprises the following steps: S1: collecting an FPGA set, an FPGA connection pair set, a net set and a net group set; S2: acquiring a routing topology of each net according to the FPGA set, the FPGA connection pair set, the net set and the net group set under the condition where TRs are not assigned; S3: assigning a corresponding TR to each edge of each net according to different delay of each net group; and S4: performing TR reduction and edge validation cyclically, iteratively optimizing net groups with TR being greater than a preset value until iteration end conditions are met, so as to obtain an optimal routing result. The multi-stage FPGA routing method may optimize the delay of inter-chip signals of a multi-FPGA prototype system and guarantee the routability of the multi-FPGA prototype system.

Abstract: The present invention is embodied in a grill configured for quick assembly, a method of partially pre-assembling the grill for shipping from the factory in a container, and a method of assembling the grill when removed from the shipping container. The grill comprises a firebox assembly for mounting on a cart assembly, the cart assembly having first and second support assemblies and at least one linking member interconnecting them. A hinge or pivot in the mid-portion of the linking member divides it into first and second linking member portions, and the opposite ends of the linking member portions are pivotally connected by hinges or the like to the first and second support assemblies. The linking member holds the first and second support assemblies together in a partially pre-assembled state, and the pivotal connections of the linking member portions allow the two assemblies to be folded for packaging in a shipping container.

Abstract: The present invention is embodied in a grill configured for quick assembly, a method of partially pre-assembling the grill for shipping from the factory in a container, and a method of assembling the grill when removed from the shipping container. The grill comprises a firebox assembly for mounting on a cart assembly, the cart assembly having first and second support assemblies and at least one linking member interconnecting them. A hinge or pivot in the mid-portion of the linking member divides it into first and second linking member portions, and the opposite ends of the linking member portions are pivotally connected by hinges or the like to the first and second support assemblies. The linking member holds the first and second support assemblies together in a partially pre-assembled state, and the pivotal connections of the linking member portions allow the two assemblies to be folded for packaging in a shipping container.

Abstract: The present invention is embodied in a grill configured for quick assembly, a method of partially pre-assembling the grill for shipping from the factory in a container, and a method of assembling the grill when removed from the shipping container. The grill comprises a firebox assembly for mounting on a cart assembly, the cart assembly having first and second support assemblies and at least one linking member interconnecting them. A hinge or pivot in the mid-portion of the linking member divides it into first and second linking member portions, and the opposite ends of the linking member portions are pivotally connected by hinges or the like to the first and second support assemblies. The linking member holds the first and second support assemblies together in a partially pre-assembled state, and the pivotal connections of the linking member portions allow the two assemblies to be folded for packaging in a shipping container.

Abstract: A grill comprising a firebox assembly for mounting on a cart assembly, the cart assembly having first and second support assemblies interconnected by at least one linking member. A hinge or pivot in the mid-portion of the linking member divides it into first and second linking member portions, and the opposite ends of the linking member portions are pivotally connected by hinges to the first and second support assemblies. The linking member holds the support assemblies together in a partially pre-assembled state, and the pivotal connections of the linking member portions allow the two assemblies to be folded for packaging in a shipping container. When removed from the container, the pivotal connections of the linking member portions allow the support assemblies to be unfolded horizontally to convert the cart assembly to an assembled configuration in which the support assemblies are unfolded to a position suitable for supporting the firebox assembly.

Abstract: A pipeline pump shaped by stamping and welding, comprises a pump body, a pedestal, a pump rear cover and a motor installed at the opening of the pump body, and an impeller arranged inside the pump body. The pump body is comprised of an inner cylinder and an outer cylinder. A flow guide part, the impeller, an exhaust part, and the pump rear cover mounted on the opening of the outer cylinder are coaxially arranged upwards in turn from the opening of the inner cylinder. The impeller is axial suction and radial discharge. The disk bottom of the flow guide part is sealed with the opening of the inner cylinder. The impeller is coaxially arranged inside the flow guide part, and a flow guide vanes corresponding to a radial exhaust port of the impeller are provided on a circumferential wall of the flow guide part.

Abstract: The present invention relates to a multi-level and vertical assembling type PTFE heater and the methods of manufacture thereof. Said heater includes a vertical frame assembled by multi-poles and upper and lower retaining plates. Several levels of PTFE sleeves and electrical heating belts are alternatively disposed on the multi-poles. The number of the poles is determined in accordance with the size and capacity of a heater desired and the power and levels of PTFE electrical heating belts with heating needs. Multiple levels of PTFE electrical heating belts are formed in an assembling way, by which heaters with varied powers are easily produced and with the elements replaceable, will not be wholly wasted in event of an element damaged, thus the heater service life prolonged. Said heater has a better heating result than the one with only a single level of heating structure.

Abstract: A grill comprising a firebox assembly for mounting on a cart assembly, the cart assembly having first and second support assemblies interconnected by at least one linking member. A hinge or pivot in the mid-portion of the linking member divides it into first and second linking member portions, and the opposite ends of the linking member portions are pivotally connected by hinges to the first and second support assemblies. The linking member holds the support assemblies together in a partially pre-assembled state, and the pivotal connections of the linking member portions allow the two assemblies to be folded for packaging in a shipping container. When removed from the container, the pivotal connections of the linking member portions allow the support assemblies to be unfolded horizontally to convert the cart assembly to an assembled configuration in which the support assemblies are unfolded to a position suitable for supporting the firebox assembly.

Abstract: The present invention is embodied in a grill configured for quick assembly, a method of partially pre-assembling the grill for shipping from the factory in a container, and a method of assembling the grill when removed from the shipping container. The grill comprises a firebox assembly for mounting on a cart assembly, the cart assembly having first and second support assemblies and at least one linking member interconnecting them. A hinge or pivot in the mid-portion of the linking member divides it into first and second linking member portions, and the opposite ends of the linking member portions are pivotally connected by hinges or the like to the first and second support assemblies. The linking member holds the first and second support assemblies together in a partially pre-assembled state, and the pivotal connections of the linking member portions allow the two assemblies to be folded for packaging in a shipping container.

Abstract: The present invention relates to a method for forming fluoroplastic articles including inner and outer fluoroplastic layers and a metal meshwork, the metal meshwork being arranged between the inner and outer fluoroplastic layers, characterized by the meshwork being stretchable and compressible in an axial direction.

Abstract: A pipeline pump shaped by stamping and welding, comprises a pump body, a pedestal, a pump rear cover and a motor installed at the opening of the pump body, and an impeller arranged inside the pump body. The pump body is comprised of an inner cylinder and an outer cylinder. A flow guide part, the impeller, an exhaust part, and the pump rear cover mounted on the opening of the outer cylinder are coaxially arranged upwards in turn from the opening of the inner cylinder. The impeller is axial suction and radial discharge. The disk bottom of the flow guide part is sealed with the opening of the inner cylinder. The impeller is coaxially arranged inside the flow guide part, and a flow guide vanes corresponding to a radial exhaust port of the impeller are provided on a circumferential wall of the flow guide part.

Abstract: The present invention is embodied in a grill configured for quick assembly, a method of partially pre-assembling the grill for shipping from the factory in a container, and a method of assembling the grill when removed from the shipping container. The grill comprises a firebox assembly for mounting on a cart assembly, the cart assembly having first and second support assemblies and at least one linking member interconnecting them. A hinge or pivot in the mid-portion of the linking member divides it into first and second linking member portions, and the opposite ends of the linking member portions are pivotally connected by hinges or the like to the first and second support assemblies. The linking member holds the first and second support assemblies together in a partially pre-assembled state, and the pivotal connections of the linking member portions allow the two assemblies to be folded for packaging in a shipping container.

Abstract: The present invention relates to a multi-level and vertical assembling type PTFE heater and the methods of manufacture thereof. Said heater includes a vertical frame assembled by multi-poles and upper and lower retaining plates. Several levels of PTFE sleeves and electrical heating belts are alternatively disposed on the multi-poles. The number of the poles is determined in accordance with the size and capacity of a heater desired and the power and levels of PTFE electrical heating belts with heating needs. Multiple levels of PTFE electrical heating belts are formed in an assembling way, by which heaters with varied powers are easily produced and with the elements replaceable, will not be wholly wasted in event of an element damaged, thus the heater service life prolonged. Said heater has a better heating result than the one with only a single level of heating structure.

Abstract: The present invention relates to a polytetrafluoroethylene (hereinafter referred to as PTFE) heating product, the technical solution of which includes embedding at least one piece of electrical heating element inside a PTFE substrate with the electrical heating element wiring terminal(s) exposed out of the substrate for connecting an external power source to energize the heating product. Depending on varied purposes, the PTFE heating product can be manufactured into the cylindrical type, which is used in cylindrical apparatuses such as tank reactors, towers, storage tanks, pipes etc. in the chemical industry, or the plate type, which is used in square-type tanks (as equipment) and as domestic heating radiators, or other special types. The present invention also involves the manufacturing methods and installation of the related apparatuses of said PTFE heating product.

Abstract: The present invention relates to a method for forming fluoroplastic article, comprising inner and outer fluoroplastic layers and a metal meshwork, the metal meshwork being arranged between the inner and outer fluoroplastic layers, characterized by the meshwork can be stretched and compressed in the axial direction.

Abstract: The present invention relates to a fluoroplastic article, comprising inner and outer fluoroplastic layers and a metal meshwork, the metal meshwork is arranged between the inner and outer fluoroplastic layers, characterized by that said meshwork can be stretched and compressed in the axial direction.