Abstract: The present disclosure provides an optical projection system and an electronic device. The optical projection system comprises a light source module and a projection module; the light source module has a light-emergent surface; the projection module comprises an entrance pupil, an optical path processing component, and an exit pupil; the light-emergent surface is provided opposite to the entrance pupil, the entrance pupil and the exit pupil are in a conjunctional relationship, the optical path processing component is configured for receiving a first light beam transmitted from the entrance pupil, and the exit pupil is configured for receiving a second light beam transmitted from the optical path processing component.

Abstract: A use of Gemifibrozil and a pharmaceutically acceptable salt, ester, or stereoisomer thereof in the preparation of a medicament for the treatment and/or prevention of a neurodegenerative disease. The neurodegenerative disease is selected from Alzheimer's disease, Parkinson's disease, Huntington's disease, or amyotrophic lateral sclerosis. Further provided is a pharmaceutical composition for treating and/or preventing a neurodegenerative disease, wherein the pharmaceutical composition comprises Gemifibrozil, or a pharmaceutically acceptable salt, ester, or stereoisomer thereof, and, preferably, the pharmaceutical composition further comprises one or a plurality of pharmaceutically acceptable carriers. Further provided is a use of the pharmaceutical composition comprising Gemifibrozil, or a pharmaceutically acceptable salt, ester, or stereoisomer thereof in the preparation of a medicament for the treatment and/or prevention of a neurodegenerative disease.

Abstract: The present application provides an anti-side-rolling damping vehicle-end device and a rail vehicle. The anti-side-rolling damping vehicle-end device comprises: a pair of damping mechanisms, which are adapted to respectively being installed on a pair of end walls of a pair of connected vehicle bodies that are arranged opposite each other, the pair of damping mechanisms being arranged on two sides of the axis of the vehicle bodies in a lengthwise direction, respectively; and a connecting rod, wherein two ends of the connecting rod are hinged to the pair of damping mechanisms, respectively, and the length of the connecting rod is greater than a vertical movement displacement of any vehicle body, such that side-rolling movement and vertical movement of the vehicle body is decoupled.

Abstract: A rail vehicle tilting system, comprising a controller (101), a high-pressure air cylinder (102), a left side air spring (105), a right side air spring (107), a left side additional air chamber (106), a right side additional air chamber (108), a first three-position electromagnetic proportional flow valve (109), a second three-position electromagnetic proportional flow valve (110), a sensor, a differential pressure valve (104) and a two-position switch valve (111).

Abstract: A use of Gemifibrozil and a pharmaceutically acceptable salt, ester, or stereoisomer thereof in the preparation of a medicament for the treatment and/or prevention of a neurodegenerative disease. The neurodegenerative disease is selected from Alzheimer's disease, Parkinson's disease, Huntington's disease, or amyotrophic lateral sclerosis. Further provided is a pharmaceutical composition for treating and/or preventing a neurodegenerative disease, wherein the pharmaceutical composition comprises Gemifibrozil, or a pharmaceutically acceptable salt, ester, or stereoisomer thereof, and, preferably, the pharmaceutical composition further comprises one or a plurality of pharmaceutically acceptable carriers. Further provided is a use of the pharmaceutical composition comprising Gemifibrozil, or a pharmaceutically acceptable salt, ester, or stereoisomer thereof in the preparation of a medicament for the treatment and/or prevention of a neurodegenerative disease.