5results about How to "Maintain dryness" patented technology

The utility model belongs to the technical field of assembly type building auxiliary sealing pieces, and relates to an assembly type building waterproof structure which comprises a wall plate clamping bottom plate, a groove is formed in the bottom of a wall plate, a plurality of clamping blocks arranged in an array mode are installed in the groove, a protruding block matched with the groove is arranged on the bottom plate, auxiliary locking devices are installed in the clamping blocks, and the auxiliary locking devices are arranged on the bottom plate. The control end of the auxiliary locking device is located in the wall plate, the water guide piece is connected with the wall plate in a clamped mode through a labyrinth type height difference clamping block, and the bottom plate abuts against the bottom face of the water guide piece. The grooves in the bottoms of the wallboards are matched with the protruding blocks on the bottom plate, the auxiliary locking devices are arranged in the clamping blocks, tight connection between the wallboards and the bottom plate is guaranteed, the water guiding pieces are connected with the wallboards in a clamped mode through the labyrinth type height difference clamping blocks, so that rainwater and other moisture can be smoothly discharged along the water guiding pieces, and the water guiding pieces are not prone to falling off. Long-term residual of water in the wall is avoided, the problems of moisture and mildew in the wall are reduced, and wall damage and maintenance requirements caused by water seepage are reduced.

This invention relates to the field of power cable technology, specifically to a low-temperature resistant, crack-resistant protective conduit for communication and power cables. It includes a cable body with an inner insulation structure. The insulation structure includes a first positioning ring and a second positioning ring located inside the cable body. The outer wall of the second positioning ring has a heating wire groove, and the inner side of the heating wire groove has a heating wire body. An installation head is fixedly connected to the outer wall of the second positioning ring, and a connecting post is fixedly connected between the installation heads. The side wall of the connecting post has a wire-passing groove. The venting structure includes a venting ring fixedly fitted around the outer ring of the cable body, and multiple venting pipes are fixedly connected to the outer wall of the venting ring. This invention provides a low-temperature resistant, crack-resistant protective conduit for communication and power cables, which has the advantages of heating and insulation in low-temperature environments, automatic venting, and high overall cable stability and compressive strength.

This invention provides the application of T-5224 in the expansion and / or functional enhancement of human circulating hematopoietic stem / progenitor cells, relating to the fields of stem cell biology and regenerative medicine. It is the first time T-5224 has been applied to the expansion of cHSPCs, opening up a new pathway to improve stem cell culture efficacy by regulating downstream transcriptional hubs of inflammatory / stress signals. Accompanied by the upregulation of HOXB4 gene expression, it significantly improves LIN... ‑ CD45RA ‑ CD34 + CD38 low / ‑ The cell expansion factor, maintaining cell stemness and regeneration capacity, provides a new approach to solving the technical problem of the difficulty in rapidly expanding human circulating hematopoietic stem / progenitor cells in in vitro culture while maintaining cell stemness and regeneration potential.

The application provides applications of IWR-1-endo and A-83-01 in promoting expansion and enhancing functions of human circulating hematopoietic stem / progenitor cells, relates to the technical field of stem cell biology and regenerative medicine, and IWR-1-endo and / or A-83-01 can promote expansion of cHSPCs; compared with a single reagent, the combination of the two has a synergistic promoting effect, significantly promotes expansion of cHSPCs, and maintains cell stemness and regenerative capacity, thereby providing a new idea for solving the technical problems in the prior art that human circulating hematopoietic stem / progenitor cells are difficult to be rapidly expanded in ex vivo culture while maintaining cell stemness and regenerative potential.

The utility model discloses a kind of vacuum circuit breaker protection structures, belong to vacuum circuit breaker protection field, including protective shell, the side of protective shell is provided with hole, the inside of hole is inserted with cable, the outer surface of cable one end is clamped with vacuum interrupter, the upper surface of protective shell is fixedly connected with ventilation mechanism, the side of protective shell bottom is fixedly connected with opening and closing mechanism, opening and closing mechanism includes support plate, the side of support plate is fixedly connected to the side of protective shell;Through the cooperation between above each device, through the opening and closing mechanism of being set, when the inside of protective shell needs ventilation, utilize the bottom air outlet plate ventilation, the opening and closing of ventilation can be controlled in combination with opening and closing mechanism, by controlling bottom ventilation, equipment internal temperature can be effectively regulated, ensure the safe operation under high load and high temperature environment, the control of bottom ventilation can prevent dust and moisture from entering equipment interior to some extent, help to maintain the cleanliness and dryness of equipment.