Abstract: The present invention relates to an andrographolide enteric targeting micropellet and method for preparation thereof; furthermore, the present invention also relates to uses of andrographolide and andrographolide enteric targeting micropellets in the preparation of a pharmaceutical for treatment of inflammatory bowel disease.

Abstract: The present invention relates to an andrographolide enteric targeting micropellet and method for preparation thereof; furthermore, the present invention also relates to uses of andrographolide and andrographolide enteric targeting micropellets in the preparation of a pharmaceutical for treatment of inflammatory bowel disease.

Abstract: The present invention discloses an antenna system, where the antenna system includes an antenna module, configured to: receive and/or transmit at least one first radio frequency signal, and at least one second radio frequency signal; a power-split phase-shift network module, configured to control an amplitude and a phase of each radio frequency signal in the antenna module, where control parameters for controlling an amplitude and a phase of each first radio frequency signal are configured according to a beam pointing direction and a beam width that are required by a three-dimensional building region, and control parameters for controlling an amplitude and a phase of each second radio frequency signal are configured according to a beam pointing direction and a beam width that are required by a ground region. Therefore, a problem of high costs and difficulty in obtaining an antenna site and maintaining an antenna is resolved.

Abstract: A data recovery method, a data recovery device and a distributed storage system are provided, where the method includes: in a case that a distributed storage system loses data of three nodes, recovering data on a target data storage node of the data on the three nodes according to data of a parity node and a data storage node without data loss; and performing degraded recovery on the remaining lost data according to the recovered data of the target data storage node. According to the embodiments of the present invention, a target data storage node first recovered is determined according to the symmetry of lost data, and the lost data of three nodes is recovered according to parity data and data that is not lost, which can improve the data recovery performance of the distributed storage system in a case that the data of three nodes is lost.

Abstract: The present invention relates to the medical field, specifically a salvianolic acid T as described in structural formula (I), a chiral isomer thereof, a preparation method therefor, pharmaceutical compositions, antioxidants, and free radical scavengers thereof, and a use of the compound.

Abstract: A traditional Chinese medicine composition and preparation thereof for treating cardiovascular diseases is provided. The traditional Chinese medicine composition consists of: by weight percentage, phenolic acid derivatives 30%˜80%, tanshinones 2%˜10% and saponins 15%˜60%.

Abstract: An output over-voltage protection circuit for power factor correction, which includes a chip external compensation network, a chip external resistor divider network, a static over-voltage detection circuit, a dynamic over-voltage detection circuit and a compare circuit; The chip external compensation network is connected between the chip external resistor divider network and the dynamic over-voltage detection circuit, the chip external compensation network converts the dynamic over-voltage signal conversion to the dynamic current signal and conveys it to the dynamic over-voltage detection circuit, the dynamic over-voltage detection circuit detects the dynamic current signal and ultimately produces the dynamic over-voltage signal (DYOVP); The dynamic over-voltage signal (DYOVP) is inputted into the compare circuit, which converts the dynamic over-voltage signal (DYOVP) into a voltage compared with a reference voltage and outputs a over-voltage control signal (OVP), so as to achieve a dynamic over-voltage prote

Abstract: The present invention relates to an andrographolide enteric targeting micropellet and a method for preparation thereof; furthermore, the present invention also relates to uses of andrographolide and andrographolide enteric targeting micropellets in preparation of a pharmaceutical for treatment of inflammatory bowel disease.

Abstract: A high-voltage heavy-current drive circuit applied in a power factor corrector, comprising a current mirroring circuit (1), a level shift circuit (3), a high-voltage pre-modulation circuit (2), a dead time control circuit (4) and a heavy-current output stage (5); the heavy-current output stage adopts a Darlington output stage structure to increase the maximum operating frequency of the drive circuit. The stabilized breakdown voltage characteristic of a voltage stabilizing diode is utilized to ensure the drive circuit operating within a safe voltage range. Adding dead time control into the level shift circuit not only prevents the momentary heavy-current from a power supply to the ground during the level conversion process, but also reduces the static power consumption of the drive circuit.

Abstract: A data recovery method, a data recovery device and a distributed storage system are provided, where the method includes: in a case that a distributed storage system loses data of three nodes, recovering data on a target data storage node of the data on the three nodes according to data of a parity node and a data storage node without data loss; and performing degraded recovery on the remaining lost data according to the recovered data of the target data storage node. According to the embodiments of the present invention, a target data storage node first recovered is determined according to the symmetry of lost data, and the lost data of three nodes is recovered according to parity data and data that is not lost, which can improve the data recovery performance of the distributed storage system in a case that the data of three nodes is lost.

Abstract: A high-voltage heavy-current drive circuit applied in a power factor corrector, comprising a current mirroring circuit (1), a level shift circuit (3), a high-voltage pre-modulation circuit (2), a dead time control circuit (4) and a heavy-current output stage (5); the heavy-current output stage adopts a Darlington output stage structure to increase the maximum operating frequency of the drive circuit. The stabilized breakdown voltage characteristic of a voltage stabilizing diode is utilized to ensure the drive circuit operating within a safe voltage range. Adding dead time control into the level shift circuit not only prevents the momentary heavy-current from a power supply to the ground during the level conversion process, but also reduces the static power consumption of the drive circuit.

Abstract: An output over-voltage protection circuit for power factor correction, which includes a chip external compensation network, a chip external resistor divider network, a static over-voltage detection circuit, a dynamic over-voltage detection circuit and a compare circuit; The chip external compensation network is connected between the chip external resistor divider network and the dynamic over-voltage detection circuit, the chip external compensation network converts the dynamic over-voltage signal conversion to the dynamic current signal and conveys it to the dynamic over-voltage detection circuit, the dynamic over-voltage detection circuit detects the dynamic current signal and ultimately produces the dynamic over-voltage signal (DYOVP); The dynamic over-voltage signal (DYOVP) is inputted into the compare circuit, which converts the dynamic over-voltage signal (DYOVP) into a voltage compared with a reference voltage and outputs a over-voltage control signal (OVP), so as to achieve a dynamic over-voltage prote

Abstract: The present invention relates to substituted cinnamamide derivatives, the method for preparing thereof and the use thereof. Each of said derivatives has a structure of formula (I). The method for preparing the substituted cinnamamides and their derivatives of the present invention is also disclosed. Substituted piperonal derivatives are selected as starting materials to prepare the substituted cinnamamide derivatives of the present invention by Wittig reaction and acid-amine condensation reaction. Further, a use of the present compounds in preventing and treating depressive-type mental diseases is disclosed.

Abstract: The present invention relates to a new compound of salvianolic acid L, its preparation method, a pharmaceutical composition containing the salvianolic acid L, and its use for preparing a medicament for treating cardio-cerebrovascular diseases.