10results about How to "Maintain dryness" patented technology

The utility model discloses a fresh-keeping box for goods transportation, which comprises a box body, a placing assembly is arranged on the box body, the placing assembly comprises a sliding rail, a fixed seat, a storage bin, a connecting plate, a stretching seat, a sliding seat and a sliding rail, the sliding rail is arranged in the box body, the fixed seat is in sliding connection with the sliding rail, and the storage bin is arranged in the sliding rail. The storage bin is placed on the fixing base, the connecting plate is fixedly connected with the fixing base, the stretching base is arranged at the top of the connecting plate, the sliding base is fixedly installed on the connecting plate, the sliding rail is arranged in the box body, the sliding rail is in sliding connection with the sliding base, and the preservation assembly is arranged in the box body. And the fresh-keeping assembly comprises a supporting block, a waterproof net and an ice brick pot, the supporting block is fixedly installed in the box body, the waterproof net is in lap joint with the supporting block, and the ice brick pot is arranged at the bottom of the box body, so that the technical problem that the operation process is often tedious when food is added or taken out of an existing fresh-keeping box mentioned in the background technology is solved.

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 present application relates to a kind of compound and method for delaying human umbilical cord mesenchymal stem cell senescence, belong to biological medicine technical field, to solve the technical problem of delaying human umbilical cord mesenchymal stem cell senescence.A kind of compound for delaying human umbilical cord mesenchymal stem cell senescence, compound is pyrroloquinoline quineone (PQQ).By the present application, PQQ-containing culture solution is used to culture hUC-MSCs, not only can effectively improve the activity of cell, promote cell proliferation, but also can down-regulate the expression of its senescence-related gene, maintain cell stemness, and effectively delay the replicative senescence of human umbilical cord mesenchymal stem cell, significantly improve the expansion efficiency and cell activity of in vitro culture hUC-MSCs.

The invention discloses a preparation method of a biological scaffold for thin endometrial repair, and belongs to the technical field of biological medicines.The preparation method comprises the steps that S1, blood clots of umbilical cord tissue donated by a healthy patient are removed, and then the umbilical cord tissue is cut into small pieces; putting the umbilical cord tissue into a culture dish until the umbilical cord tissue blocks are adhered to the wall; step S2, culturing the primary uMSCs in a culture medium; step S3, when the uMSCs in the culture medium reach 80-90% fusion, carrying out subculture; step S4, dissolving freeze-dried fetal calfskin type I collagen in an acetic acid solution, and fully swelling to obtain a collagen solution; step S5, neutralizing the collagen solution; step S6, digesting the uMSCs with 0.25% pancreatin, centrifuging, and then collecting cells; and step S7, mixing the uMSCs with a collagen solution to ensure that the concentration of the uMSCs is not less than 1 * 10 < 6 > / mL, and gelatinizing. The collagen hydrogel is combined with the uMSCs, so that dryness of the uMSCs is expected to be kept, the duration time of the uMSCs in a uterine cavity is prolonged, and the endometrial regeneration and fertility capabilities are enhanced.

The utility model provides a refrigerator which comprises a refrigerator body, a refrigerator cover, a refrigerator door and a refrigerator door, a cooling chamber and a storage chamber are defined in the refrigerator body, and the cooling chamber is located above the storage chamber; the refrigerator door is pivotally connected with the refrigerator body and used for opening and closing the storage chamber, and an ice making chamber is defined in the refrigerator door; the evaporator is arranged in the cooling chamber and is used for preparing cold air; and the fan is arranged in the cooling chamber and is used for blowing the cold air prepared by the evaporator to the storage chamber and the ice making chamber respectively. The refrigerator has the advantages that the evaporator can be prevented from occupying the rear side space of the storage chamber, so that the internal space of the storage chamber is more effectively utilized, and meanwhile, short users can conveniently take and place articles.

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.

The present invention belongs to the application field of extracellular vesicles, and specifically relates to the application of extracellular vesicles derived from decidual mesenchymal stem cells in pulmonary fibrosis. The present invention uses pEGFP-N2-GFE2-Lamp2b plasmid to transfect decidual mesenchymal stem cells I, obtains decidual mesenchymal stem cells II with targeted localization effect, and after culturing with dispersed polymers and supplement culture medium, adopts centrifugation combined with sucrose density gradient purification to obtain extracellular vesicles derived from decidual mesenchymal stem cells with high purity, stable performance, and also having targeted localization effect. It is used in pulmonary fibrosis, which can achieve the application effect of small doses, precise onset, and alleviation of the process of pulmonary fibrosis.