Abstract: An animal memory training system with a closed rotary maze comprises a maze device and a stimulating device. A rotary wheel (6) driven by a motor (4) is provided on the bottom of the case (1) of the maze device. The motor (4) is set in a central column, and its output shaft is tightly connected with the rotary wheel (6) along the central column shaft direction, thus the rotary wheel (6) is driven by the motor (4) to rotate around said central column. A number of pulleys (12) are set on the lower periphery of the frame of the case (1) to support said rotary wheel (6), and a sieve-like supporting net (5) is arranged above the rotary wheel (6). The stimulating device includes an automatic manipulator stimulating device and a remote control stimulating device. Compared with the existing maze model, the rotary drive action of the training system's rotary wheel is moderate, and is more coincident with the movement actual of animals' normal physiological behavior.

Abstract: A counter-rotating polisher includes: an enclosure, an electric motor, a polishing arrangement and a counter-rotating arrangement. The electric motor is fixed to the enclosure and includes a driving axle. The polishing arrangement includes two polishing device. The polishing devices respectively include a fixed tray and a polishing material that are fixedly connected to an outside of the fixed tray. The fixed tray is perpendicular to the driving axle. The counter-rotating arrangement includes a first driving wheel, a second driving wheel and a change-direction wheel. The first driving wheel is connected to the driving axle and driven by the driving axle. The second driving wheel is fixedly connected to the second fixed tray. The change-direction wheel is connected to the first driving wheel and the second driving wheel. The driving axle rotates the first polishing material positively. The change-direction wheel reversely transmits the rotation to the second driving wheel.

Abstract: A counter-rotating polisher includes: an enclosure, an electric motor, a polishing arrangement and a counter-rotating arrangement. The electric motor is fixed to the enclosure and includes a driving axle. The polishing arrangement includes two polishing device. The polishing devices respectively include a fixed tray and a polishing material that are fixedly connected to an outside of the fixed tray. The fixed tray is perpendicular to the driving axle. The counter-rotating arrangement includes a first driving wheel, a second driving wheel and a change-direction wheel. The first driving wheel is connected to the driving axle and driven by the driving axle. The second driving wheel is fixedly connected to the second fixed tray. The change-direction wheel is connected to the first driving wheel and the second driving wheel. The driving axle rotates the first polishing material positively. The change-direction wheel reversely transmits the rotation to the second driving wheel.

Abstract: An animal memory training system with a closed rotary maze comprises a maze device and a stimulating device. A rotary wheel (6) driven by a motor (4) is provided on the bottom of the case (1) of the maze device. The motor (4) is set in a central column, and its output shaft is tightly connected with the rotary wheel (6) along the central column shaft direction, thus the rotary wheel (6) is driven by the motor (4) to rotate around said central column. A number of pulleys (12) are set on the lower periphery of the frame of the case (1) to support said rotary wheel (6), and a sieve-like supporting net (5) is arranged above the rotary wheel (6). The stimulating device includes an automatic manipulator stimulating device and a remote control stimulating device. Compared with the existing maze model, the rotary drive action of the training system's rotary wheel is moderate, and is more coincident with the movement actual of animals' normal physiological behavior.

Abstract: The present invention provides new pyrazolo-[1,5-a]-pyrimidone derivates and pharmaceutical compositions comprising said compounds and one or more pharmaceutically acceptable carriers or diluents. The uses of the compounds for the manufacture of potassium channel openers, anti-epilepsy medicaments, anti-anxiety medicaments and analgesic medicaments are also provided in the present invention.

Abstract: A counter-rotating polisher includes: an enclosure, an electric motor, a polishing arrangement and a counter-rotating arrangement. The electric motor is fixed to the enclosure and includes a driving axle. The polishing arrangement includes two polishing device. The polishing devices respectively include a fixed tray and a polishing material that are fixedly connected to an outside of the fixed tray. The fixed tray is perpendicular to the driving axle. The counter-rotating arrangement includes a first driving wheel, a second driving wheel and a change-direction wheel. The first driving wheel is connected to the driving axle and driven by the driving axle. The second driving wheel is fixedly connected to the second fixed tray. The change-direction wheel is connected to the first driving wheel and the second driving wheel. The driving axle rotates the first polishing material positively. The change-direction wheel reversely transmits the rotation to the second driving wheel.