Presents a case study of the Cao-Wei conquest of the Shu-Han state in China during the Three Kingdoms period in 263 A.D. Background on the history of Chinese civil warfare; Information on the political unity established by the Qin Dynasty and the Han Dynasty; Details of the strategies used during the invasion of the Shu-han state.

The invention discloses an underwater robot hydraulic system for flushing and monitoring a ship hull. The hydraulic system comprises a cleanings collecting drive hydraulic circuit (1), a brush disc drive hydraulic circuit (2), an operating vehicle walking hydraulic circuit (3), an operating vehicle steering hydraulic circuit (4), a strong magnetic disk regulation hydraulic circuit (5) and a hydraulic power source circuit (6). The circuits are all connected with a hydraulic pump and an oil tank. The underwater robot hydraulic system for flushing and monitoring the ship hull has advantages of high efficient operation, and good oil heat-radiation and clarification conditions.

A display baseplate and preparation method thereof, and a display device are provided, which belong to the field of display technology. The display baseplate includes a substrate (1) and a conductive alignment film (4) over the substrate (1). The conductive alignment film (4) is of a composite material comprising graphene and polyimide.

Two-dimensional (2D) crystal semiconductors, such as the well-known molybdenum disulfide (MoS2), are witnessing an explosion in research activities due to their apparent potential for various electronic and optoelectronic applications. In this paper, dissipative quantum transport simulations using nonequilibrium Green's function formalism are performed to rigorously evaluate the scalability and performance of monolayer/multilayer 2D semiconductor-based FETs for sub-10 nm gate length very large-scale integration (VLSI) technologies. Device design considerations in terms of the choice of prospective 2D material/structure/technology to fulfill sub-10 nm International Technology Roadmap for Semiconductors (ITRS) requirements are analyzed. First, it is found that MoS2 FETs can meet high-performance (HP) requirement up to 6.6 nm gate length using bilayer MoS2 as the channel material, while low-standby-power (LSTP) requirements present significant challenges for all sub-10 nm gate lengths. Second, by studying the effects of underlap (UL) structures, scattering strength, and carrier effective mass, it is found that the high mobility and suitably low effective mass of tungsten diselenide (WSe2), aided by the UL, enable 2D FETs for both HP and LSTP applications at the smallest foreseeable (5.9 nm) gate length. Finally, possible solutions for sub-5 nm gate lengths, specifically anisotropic 2D semiconductor materials for HP and sub-kT/q switch (2D tunnel FET) for LSTP, are also proposed based on the effects of critical material parameters on the device performance.

A ciphertext data decryption method, system and computer storage medium, the method comprising: a non-secure operating subsystem loading ciphertext data into a shared memory (11); and a secure operating subsystem decrypting the ciphertext data loaded in the shared memory according to a pre-stored certificate\key, so as to acquire and then store plaintext data into a first non-shared storage area (12).

Disclosed are a signal design method and system for OFDM communication, a transmitter, and a receiver, to solve the problem in the related art that the random access procedure in OFDM communication has a large signaling overhead and cannot support high-density terminal communication. The method comprises: dividing roots of a preamble ZC sequence allocated to a target cell into at least two groups, and applying different orthogonal codes to each group of roots to form a preamble resource pool; selecting a corresponding preamble resource from the preamble resource pool to generate a preamble portion of a communication signal of a user equipment; generating a data portion of the communication signal of the user equipment by applying an extended code to transmission data to realize multi-user concurrent access; and combining the preamble portion and the data portion into frames.

A MTJ in an MRAM array is disclosed with a composite free layer having a FL1/FL2/FL3 configuration where FL1 and FL2 are crystalline magnetic layers and FL3 is an amorphous NiFeX layer for improved bit switching performance. FL1 layer is CoFe which affords a high magnetoresistive (MR) ratio when forming an interface with a MgO tunnel barrier. FL2 is Fe to improve switching performance. NiFeX thickness where X is Hf is preferably between 20 to 40 Angstroms to substantially reduce bit line switching current and number of shorted bits. Annealing at 330°C to 360°C provides a high MR ratio of 190%. Furthermore, low He and Hk are simultaneously achieved with improved bit switching performance and fewer shorts without compromising other MTJ properties such as MR ratio. As a result of high MR ratio and lower bit-to-bit resistance variation, higher reading margin is realized.

A medical implant porous material, comprising: a metallic wire or non-metallic wire braid and a metal layer bonded onto the braid. The medical implant porous material has a relatively high porosity and regular pore size, and there is no problem of closed pores inside the porous material. A method for preparation of a medical implant porous material, comprising the following steps: braiding a metallic wire or non-metallic wire to form a metallic wire or non-metallic wire braid; bonding a metal onto the metallic wire or non-metallic wire braid obtained in the above step to obtain the medical implant porous material.

A system for co-processing household solid waste in a cement kiln and method thereof, the system comprising a drying device (2), a waste storage container (6), a pyrolysis furnace (14), a residue cooling device and a cement kiln system; the drying device (2) is in communication with the waste storage container (6); a gas inlet of the drying device (2) is in communication with a gas outlet of a grate cooler (18) of the cement kiln system; a gas outlet of the drying device (2) is in communication with a gas inlet of the grate cooler (18); the waste storage container (6) is in communication with a gas inlet of the pyrolysis furnace (14) and the gas inlet of the grate cooler (18) respectively; a gas outlet of the pyrolysis furnace (14) is in communication with a gas inlet of a cement kiln decomposition furnace (16); a residue outlet of the pyrolysis furnace (14) is in communication with the residue cooling device. The system dries waste first before pyrolyzing the waste, consumes less heat during pyrolysis, saves energy, and a pyrolysis gas thereof has a high heat value and a fast heat release speed; gas between the drying device (2) and the grate cooler (18) is recycled, saving energy; air from the pyrolysis furnace (14) and the grate cooler (18) is from the waste storage container, forms a negative pressure and effectively prevents harmful gas from leaking; a part of products of the pyrolysis furnace are recycled in the furnace, thus reducing heat loss, and improving heat efficiency of the pyrolysis furnace.