2results about How to "Maintain physical properties" patented technology

The utility model discloses a kind of ultra-thin smart cards, including smart card;The upper end of the smart card is provided with a through-hole, the smart card is composed of chip, film layer, silica gel sheet, printing layer and protective layer, the film layer is attached on both sides of chip, the silica gel sheet is attached on the outside of film layer, the printing layer is attached on the outside of silica gel sheet, the protective layer is attached on the outside of printing layer.The silica gel sheet of the utility model has good flexibility and elasticity, is attached on the outside of film layer, can utilize its elastic buffer external impact force to smart card, reduce the damage caused to internal chip due to collision, extrusion etc., also make the whole smart card more flexible, meet the characteristic requirement of ultra-thin.

The utility model relates to the field of buildings, and discloses a structure for preventing large-area pile loading from generating lateral stress on a building foundation, which comprises a pile foundation consisting of a foundation pile and a bearing platform, a loading surface is arranged on the bearing platform, an isolating layer is arranged between the loading surface and the foundation pile, and the isolating layer comprises an isolating cavity. The isolation cavity is internally provided with filler, and lateral stress borne by the building foundation can be reduced through deformation of the filler. Through the arrangement of the isolating layer, the problem of solving stress measurement through the traditional thinking of resisting is converted into the problem of reducing the stress measurement of large-area pile loading on the pile foundation through the thinking of unloading, so that the pile diameter and the pile number are effectively reduced, the engineering amount is reduced, and the economical efficiency is improved.