Abstract: A recyclable nano composite, a preparation method, and an application thereof are provided. The preparation method includes providing a reinforcement material including a conductive material, or, a combination of the conductive material and an insulating material; directly mixing the reinforcement material with a matrix material, or, molding the reinforcement material to form a film, fiber or three-dimensional network structure formed by the reinforcement material, and then compounding the film, fiber or three-dimensional network structure with the matrix material to obtain the recyclable nano composite. The present disclosure further discloses a recycling method of a reinforcement material. The recyclable nano composite provided by the present disclosure has high strength, high toughness, conductivity, electromagnetic shielding and other properties; furthermore, by simple treatment, the reinforcement material can be recycled.

Abstract: A recyclable nano composite, a preparation method, and an application thereof are provided. The preparation method includes providing a reinforcement material including a conductive material, or, a combination of the conductive material and an insulating material; directly mixing the reinforcement material with a matrix material, or, molding the reinforcement material to form a film, fiber or three-dimensional network structure formed by the reinforcement material, and then compounding the film, fiber or three-dimensional network structure with the matrix material to obtain the recyclable nano composite. The present disclosure further discloses a recycling method of a reinforcement material. The recyclable nano composite provided by the present disclosure has high strength, high toughness, conductivity, electromagnetic shielding and other properties; furthermore, by simple treatment, the reinforcement material can be recycled.

Abstract: Embodiments of the disclosure provide a method and apparatus for encrypting and decrypting data. The method for encrypting data in a computer system can include: receiving, by a memory operation module, a first data and a second data for encryption; determining at least one storage area for a first encrypted data corresponding to the first data and a second encrypted data corresponding to the second data; generating at least one key based on the first and second data and the at least one storage area; and encrypting the first data and the second data using the at least one key to generate the first encrypted data and the second encrypted, respectively.

Abstract: Embodiments of the disclosure provide an apparatus for adding a protection function for an indirect access memory controller. The apparatus can include: a bus monitoring unit configured to monitor a bus address, perform permission authentication if a register controlling operation is detected, and configure a list entry if a permission list configuring operation is detected; an permission list unit configured to partition a memory space into several virtual memory protection areas and independently set an access permission attribute (i.e.: readable, writable, erasable, etc.) of each memory area; a window register information bus configured to provide window register information, i.e.

Abstract: A control method and apparatus for inhibiting slag entrapment in ladle (1) during continuous casting production. An optimal control model calculating unit (11) receives related signals and data sent by a ladle weight detector (4), a molten steel flow field detector (5), a slag detector (7), a sliding gate opening detector (9), and a process signal interface unit (10), performs calculation and analysis according to an optimal control model to obtain a corresponding optimal control strategy, and outputs the strategy to an electromagnetic brake (6) and a sliding gate controller (8) for slag entrapment inhibition control. Regarding the two processes where a vortex may be formed, by means of different optimal control strategies, which respectively inhibit or destroy the formation of a vortex, slag generation is postponed, and molten steel may flow out without bringing slag out, thereby reducing residual ladle steel and improving molten steel yield.

Abstract: Embodiments of the present disclosure provide an APB (Advanced Peripheral Bus) bus-based SPI (Serial Peripheral Interface) communication device. The device comprises: an APB interface module, an SPI bus interface module, an encryption module, and a decryption module, wherein the encryption module receives plaintext data and a key from a master via the APB interface module, generates, when enabled, ciphertext data according to the plaintext data and the key, and sends the ciphertext data to a slave via the SPI bus interface module; the decryption module receives the ciphertext data from the slave via the SPI bus interface module and receives a key from the master via the APB interface module, generates, when enabled, plaintext data according to the ciphertext data and the key, and sends the plaintext data to the master via the APB interface module. The present disclosure can improve the security of data transmission.

Abstract: Embodiments of the disclosure provide an apparatus for adding a protection function for an indirect access memory controller. The apparatus can include: a bus monitoring unit configured to monitor a bus address, perform permission authentication if a register controlling operation is detected, and configure a list entry if a permission list configuring operation is detected; an permission list unit configured to partition a memory space into several virtual memory protection areas and independently set an access permission attribute (i.e.: readable, writable, erasable, etc.) of each memory area; a window register information bus configured to provide window register information, i.e.

Abstract: Embodiments of the present disclosure provide an APB (Advanced Peripheral Bus) bus-based SPI (Serial Peripheral Interface) communication device. The device comprises: an APB interface module, an SPI bus interface module, an encryption module, and a decryption module, wherein the encryption module receives plaintext data and a key from a master via the APB interface module, generates, when enabled, ciphertext data according to the plaintext data and the key, and sends the ciphertext data to a slave via the SPI bus interface module; the decryption module receives the ciphertext data from the slave via the SPI bus interface module and receives a key from the master via the APB interface module, generates, when enabled, plaintext data according to the ciphertext data and the key, and sends the plaintext data to the master via the APB interface module. The present disclosure can improve the security of data transmission.

Abstract: A control method and apparatus for inhibiting slag entrapment in ladle (1) during continuous casting production. An optimal control model calculating unit (11) receives related signals and data sent by a ladle weight detector (4), a molten steel flow field detector (5), a slag detector (7), a sliding gate opening detector (9), and a process signal interface unit (10), performs calculation and analysis according to an optimal control model to obtain a corresponding optimal control strategy, and outputs the strategy to an electromagnetic brake (6) and a sliding gate controller (8) for slag entrapment inhibition control. Regarding the two processes where a vortex may be formed, by means of different optimal control strategies, which respectively inhibit or destroy the formation of a vortex, slag generation is postponed, and molten steel may flow out without bringing slag out, thereby reducing residual ladle steel and improving molten steel yield.

Abstract: Embodiments of the disclosure provide a method and apparatus for encrypting and decrypting data. The method for encrypting data in a computer system can include: receiving, by a memory operation module, a first data and a second data for encryption; determining at least one storage area for a first encrypted data corresponding to the first data and a second encrypted data corresponding to the second data; generating at least one key based on the first and second data and the at least one storage area; and encrypting the first data and the second data using the at least one key to generate the first encrypted data and the second encrypted, respectively.