3results about How to "Improve truncation efficiency" patented technology

This utility model discloses a cutting device for producing double-ended bolts, including a cutting support mounting assembly. The cutting support mounting assembly includes a concave mounting bracket, a drive motor mounted on the side wall of the concave mounting bracket, a transmission shaft connected to the output end of the drive motor, a bearing connected to the end of the transmission shaft, and a first and second circular hole formed in the side wall of the concave mounting bracket. The cutting assembly includes a mounting bracket fitted onto the transmission shaft, a first sleeve fixed to one side of the mounting bracket, a second sleeve fixed to the other side of the mounting bracket, a threaded hole formed in the first sleeve, a threaded rod penetrating the threaded hole, and a notch formed in the middle of the mounting bracket. This utility model, through the cooperation of the extreme support mounting assembly and the cutting assembly, achieves alternating and uninterrupted feeding during use, eliminating the need to wait for the double-ended double-bolt pipe to be cut before feeding, and can cut into multiple segments at once, eliminating the need for individual segment cutting, thus further improving cutting efficiency.

This specification provides a data truncation method, device, storage medium, and program product for multi-party secure computation. The unsigned representation of a fixed-point product is mapped to a signed representation using signed coefficients, and truncation of the signed representation is performed. Specifically, the truncation process for the target fragment corresponding to the fixed-point product is mapped to a geometric space. In this geometric space, the target fragment is mapped to a Boolean value. Both parties exchange masks of the Boolean values. Bit multiplication is performed based on the local Boolean values ​​and the exchanged masks, generating a signed coefficient fragment based on the bit multiplication result. The target fragment is then converted to a signed fragment based on this signed coefficient fragment, and the signed fragment is truncated to obtain the truncated result. In this process, both parties perform bit multiplication locally, eliminating the need for complex cryptographic primitives. This significantly reduces communication rounds and traffic while ensuring data security, thus improving data truncation efficiency.

This utility model discloses a conduit cutting device for building engineering, relating to the field of building engineering technology. The technical solution includes: a positioning base with multiple support rods fixedly connected to its top; two workbenches fixedly connected to the tops of the support rods on the top of the positioning base; a positioning mechanism located on the tops of the two workbenches for positioning and clamping the conduit; and a cutting mechanism located on the tops of the two workbenches for cutting the clamped conduit. The positioning mechanism includes multiple clamping plates, each with a connecting block fixedly connected to its outer side. The beneficial effects of this utility model are: it greatly improves the efficiency of cutting conduits in building engineering, and the device structure is more stable, preventing conduit displacement during cutting and resulting in higher quality finished conduits.