Abstract: A dynamic simulation test platform for ultra-high-speed evacuated tube magnetic levitation (maglev) transportation includes an evacuated tube having a transition section and a vacuum section, a vacuum maintaining system, a motor supporting platform, and a model train. One end of the evacuated tube is provided with a first isolation door, and the other end is closed. A second isolation door is provided inside the evacuated tube. The vacuum maintaining system is connected to the transition section and the vacuum section. The motor supporting platform is provided in the evacuated tube and extends outside the transition section. The motor supporting platform is provided with a stator winding and a permanent-magnet track. A mover and a cryogenic dewar are provided at a bottom of the model train. The cryogenic dewar is provided with a superconducting bulk. A test method using the test platform is further provided.

Abstract: A dynamic simulation test platform for ultra-high-speed evacuated tube magnetic levitation (maglev) transportation includes an evacuated tube having a transition section and a vacuum section, a vacuum maintaining system, a motor supporting platform, and a model train. One end of the evacuated tube is provided with a first isolation door, and the other end is closed. A second isolation door is provided inside the evacuated tube. The vacuum maintaining system is connected to the transition section and the vacuum section. The motor supporting platform is provided in the evacuated tube and extends outside the transition section. The motor supporting platform is provided with a stator winding and a permanent-magnet track. A mover and a cryogenic dewar are provided at a bottom of the model train. The cryogenic dewar is provided with a superconducting bulk. A test method using the test platform is further provided.

Abstract: Disclosed is a method for preparing voriconazole and an intermediate thereof In the method, a voriconazole condensate isomer is reacted as a starting material in the presence of an acid to obtain 4-chloro-6-ethyl-5-fluoropyrimidine and 2?,4?-difluoro-2-[1-(1H-1,2,4-triazolyl)]acetophenone. A method for preparing voriconazole by using the intermediate thus obtained is further disclosed. By adopting the method of the present invention, the utilization rate of starting materials and auxiliary materials for preparing voriconazole on the basis of the prior art can be greatly improved, thereby reducing costs.

Abstract: The present invention discloses a method for component-level non-iterative construction of an airborne real-time model of a variable-cycle engine, which is proposed by using an existing nonlinear component-level dynamic general model of a variable-cycle engine in combination with a modeling idea of an aero-engine LPV model. In the original nonlinear component-level general model of the variable-cycle engine, components are connected together through a system of nonlinear co-working equations, and characteristic parameters of the respective components are obtained by iteratively solving the system of nonlinear co-working equations. In such a process of iteratively solving the system of nonlinear equations, much time is taken to operate the model.

Abstract: A midplane of a communication device, includes the first connectors and the second connectors which connect with each other via high-speed traces, the first connectors arrange in parallel at one side of the midplane, the second connectors arrange in parallel at the other side of the midplane and in parallel with the first connectors. The wiring of high-speed traces between the first connectors and the second connectors can be disposed on the whole midplane, so that it avoids the high density of wiring in part of midplane, reduces the number of layers of the midplane and the complexity of design, and reduces the crosstalk in signals. And the cooling of the whole communication device can be accomplished by only one heat dissipation system, it reduces the complexity of design of the communication device. The area between each frames of the midplane is provided to allocate electrical power in the communication device with two or multiple frames, it reduces the costs of the communication device.

Abstract: A power supply system is provided, which includes a power supply subrack (PSS) and a power cable distributor (PCD). The PSS includes one or more power modules and a third connector (51), and the PCD is adapted to introduce one or more electrical signals from power input cables. The third connector (51) in the PSS is connected to the PCD and adapted to feed the introduced electrical signals to the power modules. Furthermore, a power cable distributor, a power supply subrack adapted to work with the PCD and an integrated equipment are provided.

Abstract: A midplane of a communication device, includes the first connectors and the second connectors which connect with each other via high-speed traces, the first connectors arrange in parallel at one side of the midplane, the second connectors arrange in parallel at the other side of the midplane and in parallel with the first connectors. The wiring of high-speed traces between the first connectors and the second connectors can be disposed on the whole midplane, so that it avoids the high density of wiring in part of midplane, reduces the number of layers of the midplane and the complexity of design, and reduces the crosstalk in signals. And the cooling of the whole communication device can be accomplished by only one heat dissipation system, it reduces the complexity of design of the communication device. The area between each frames of the midplane is provided to allocate electrical power in the communication device with two or multiple frames, it reduces the costs of the communication device.

Abstract: A power supply system is provided, which includes a power supply subrack (PSS) and a power cable distributor (PCD). The PSS includes one or more power modules and a third connector (51), and the PCD is adapted to introduce one or more electrical signals from power input cables. The third connector (51) in the PSS is connected to the PCD and adapted to feed the introduced electrical signals to the power modules. Furthermore, a power cable distributor, a power supply subrack adapted to work with the PCD and an integrated equipment are provided.