2results about How to "Adequate support" patented technology

The utility model relates to photovoltaic power generation technical field discloses the fastening device for photovoltaic module, including support structure, first pressure structure, second pressure structure and connecting structure, support structure is located between photovoltaic board and support purlin, and the both ends along the first direction are respectively with photovoltaic board and support purlin and abut; first pressure structure and photovoltaic module and support structure are away from the side of support purlin and all abut; Second pressure structure sets up at the side of support purlin away from photovoltaic board, connecting structure connects first pressure structure, support structure and second pressure structure in proper order, the utility model not only has guaranteed the direct close connection between photovoltaic board and support purlin, still through multiple pressure and support mechanism, has improved the stability and durability of whole structure, guarantees the firmness of connection between photovoltaic board and support purlin together, ensures that photovoltaic module can bear the impact of bad weather, has guaranteed the safe operation of photovoltaic power station, and has reduced the maintenance cost of photovoltaic module.

The application relates to the fields of biological medicine and tissue engineering materials, and particularly discloses a Janus microneedle capable of promoting inflammation subsiding and blood vessel regeneration of a diabetic wound surface as well as a preparation method and application of the Janus microneedle, the microneedle is a double-layer structure, the upper layer is loaded with an SLC7A11 inhibitor and an apoptotic body, and the lower layer is loaded with an engineered exosome overexpressing miR-17-5p. Through a unique double-layer hydrogel matrix design and a two-phase crosslinking process, the Janus microneedle realizes rapid release of active ingredients in the upper layer in the early healing stage to promote inflammation subsiding and phagocytosis, and slow release of active ingredients in the lower layer in the middle and late healing stage to continuously promote angiogenesis. The microneedle patch can intelligently simulate and synergistically regulate the natural timing of wound healing, solves the problem of space-time disconnection of the existing single therapy, and provides a novel and precise delivery strategy for efficient repair of chronic and difficult-to-heal wounds such as diabetes.