3results about How to "Simple frame structure" patented technology

The application provides a hollow double-layer plate, which comprises a connecting frame, an upper layer plate and a lower layer plate. The connecting frame is formed by connecting a plurality of frames with an arch-shaped cross section. Each frame has an upper slot and a lower slot which are spaced apart and have openings facing inwards, and an outer recess between the upper slot and the lower slot and having an opening facing outwards. The outer edge of the upper layer plate is inserted into the upper slot. The lower layer plate is spaced apart from the upper layer plate, and the outer edge of the lower layer plate is inserted into the lower slot. The upper layer plate and the lower layer plate are assembled by using the frames with an arch-shaped cross section, so that a hollow double-layer plate structure is formed, and the assembly is simple. The hollow structure of the double-layer plate has a good heat preservation and energy saving effect. Meanwhile, the frame with an arch-shaped cross section has a simple structure, high strength and low cost. The hollow layer between the upper layer plate and the lower layer plate does not need a whole layer of reinforcing support structure for support, and is suitable for a plate which needs to transmit light.

A frame, a bogie, and a rail vehicle. The frame comprises two side beams and two cross beams connected between the two side beams; air springs of the bogie are mounted on the side beams; at least one auxiliary beam is connected between the two cross beams; the inner cavity of the auxiliary beam is divided into a first cavity and a second cavity; the first cavity is communicated with the inner cavity of one of the cross beams so as to jointly serve as an additional air chamber of one of the air springs, and the second cavity is communicated with the inner cavity of the other of the cross beams so as to jointly serve as an additional air chamber of the other of the air springs. In the present solution, the auxiliary beam of the bogie frame is used as a connecting member for connecting the front and rear two cross beams and is also divided into the first cavity and the second cavity, and the first cavity and the second cavity can be communicated with the inner cavities of the cross beams so as to serve as the additional air chambers of the air springs mounted on the bogie frame, such that the volume of the additional air chambers is increased, and the structure of the frame is simplified.

The present invention discloses a privacy protection feature engineering method and system based on secret sharing, comprising the following steps: S100, in the data set secret distribution stage, n data providers #imgabs0# respectively distribute their own privacy data features and their labels #imgabs1# to the first server S1 and the second server S2 through additive arithmetic secret sharing, and obtain the secret share of the data features and the secret share of the data labels; S200, in the two-party distributed computing stage, the first server S1 and the second server S2 respectively perform secure two-party distributed computing in a secret environment based on the obtained secret share of the data features and the secret share of the data labels, and there is no collusion between the first server S1 and the second server S2. The technical solution of the present invention can ensure the privacy security of data at any link while taking into account the computing efficiency, and has stronger scalability and a complete system.