7 results about "Ultraviolet light" patented technology

The utility model discloses a breathing type hollow building integrated photovoltaics (BIPV) photovoltaic assembly, which comprises a building and photovoltaic assembly mechanisms, a roof is arranged at the top end of the building, and the photovoltaic assembly mechanisms are arranged on two sides of the top end of the roof. According to the breathing type hollow BIPV photovoltaic module, through the arrangement of the photovoltaic module mechanism, during installation, a photovoltaic frame in the photovoltaic module mechanism is conveniently spliced with an installation frame laid on a roof through a fixing block, then the photovoltaic frame and the installation frame are fixed through a fixing rod, fixing is convenient, and the installation efficiency is improved. In addition, radiation heat of solar energy can be absorbed to the maximum extent through the ultra-white tempered glass covering the surface of the cell panel, the photoelectric conversion efficiency of the solar cell is greatly improved, the glass can resist radiation of solar ultraviolet light, the light transmittance cannot be reduced, and therefore the service life can be effectively prolonged, and the service life of the solar cell panel is prolonged. Meanwhile, the alkali resistance, the mildew resistance and the aging resistance are higher than those of common flat ultra-white glass.

This invention relates to a method and apparatus for preparing samples of the cross-sectional morphology of polyacrylonitrile (PA) precursor fibers. The method comprises the following steps: taking a 50cm sample from the end of the PA precursor fiber to obtain a 10cm PA precursor fiber sample; fixing the PA precursor fiber sample onto a Y-shaped clamp in a stainless steel groove; slowly injecting UV-curable adhesive into the groove to uniformly immerse the PA precursor fiber sample in the adhesive; continuously irradiating the sample with a UV-curable flashlight for 5 seconds to cure it; after curing, using a release agent to remove the PA precursor fiber sample from the long groove; placing the cured PA precursor fiber sample into a solid slicer and cutting a 5mm section from the middle of the sample as the test sample. The sample preparation equipment for the cross-sectional morphology of PA precursor fibers in this invention is rationally designed, improving operational efficiency and saving time. It also avoids deviations from the true characterization caused by inconsistent sample cross-sectional depth and deformation of the precursor fiber diameter due to compression during sample preparation and cutting.

A portable sterilization box comprises a box body, the box body is provided with an opening, the portable sterilization box further comprises a cover body capable of covering the opening, disinfection matrixes are arranged on the peripheral side walls and the bottom wall in the box body and the wall face, facing the inner space of the box body, of the cover body when the cover body covers the opening, the disinfection matrixes are formed by regularly arranging a plurality of sterilization lamp assemblies, and the sterilization lamp assemblies comprise ultraviolet lamp beads. The distance between the light-emitting centers of the adjacent ultraviolet lamp beads in the transverse size is d1, the distance between the light-emitting centers of the adjacent ultraviolet lamp beads in the longitudinal size is d2, the distance between the light-emitting centers of the ultraviolet lamp beads and the surface of the object to be sterilized is L, d1 and d2 meet the condition that d1 / d2 is larger than or equal to 0.85 and smaller than or equal to 1.2, L needs to meet the condition that L is larger than or equal to d1 + d2, and through calculation, d1 and d2 meet the condition that d1 is larger than or equal to 0.85 and smaller than or equal to 1.2. When the to-be-sterilized object is respectively parallel to the bottom wall, the left side wall and the front side wall, the light uniformity of the irradiated surface of the to-be-sterilized object is up to 98%, the sterilization rate is up to 99.99%, a dead-corner-free internal space covered by ultraviolet light is formed, the ultraviolet light can cover any position on the surface of the object, and the disinfection and sterilization effect is ensured.

This invention discloses a flow-through UV sterilization device for drinking water storage tanks, relating to the field of drinking water sterilization technology. The invention includes a water storage mechanism, a sterilization mechanism on the right side of the water storage mechanism, a U-shaped quartz tube on the left side of the sterilization mechanism, a straight quartz tube inside the U-shaped quartz tube, a water filtration mechanism on the left side of the water storage mechanism, an anti-impact device to protect the sterilization mechanism on the right side of the water filtration mechanism, and an anti-water accumulation device to reduce water residue on the right side of the anti-impact device. Several UV components are equidistantly and fixedly installed inside the right end of the water filtration mechanism. This invention effectively intercepts sediment and other impurities through the filter plate, preventing them from settling inside the water storage mechanism over time, thus avoiding contamination of the water storage and sterilization mechanisms and preventing a gradual decrease in sterilization effectiveness. Simultaneously, the water source can fully receive UV light irradiation to optimize the sterilization effect and ensure drinking water health.

This invention belongs to the field of epoxy prepreg technology, and particularly relates to a UV-curable epoxy prepreg and its production process. This invention uses epoxy resin as a matrix, resulting in low initial viscosity, and produces a UV-curable epoxy prepreg through a wet prepreg process. This results in low manufacturing costs. The epoxy resin system is modified and thickened using a polyamine compound containing amino groups, increasing the prepreg resin viscosity to a peelable state. The prepreg of this invention can be fully cured by UV irradiation for 20 minutes, exhibiting high mechanical strength and peel strength after curing, making it suitable for applications such as interior wall repair and pipe repair with high environmental protection requirements.

The invention relates to the technical field of biotechnology and cell engineering, in particular to a large-scale culture method of central memory T cells (TCM). According to the method, the lymphocyte expressed by the high homing receptor is activated by adopting an alternating electric field, and the cell activity is improved by combining with a composite metabolism regulator. A two-photon excitation three-dimensional scaffold of a modified collagen peptide, ferroferric oxide and a quantum dot labeled organoid is utilized to simulate an in-vivo microenvironment to promote cell anchoring. And finally, through gene editing, engineering a cryopreservation system of saccharomyces cerevisiae and ultraviolet light activated autophagic peptide, so as to realize the enhancement of cell function stability and long-term memory characteristic. According to the invention, the limitation of traditional two-dimensional culture is broken through, and an efficient and controllable T cell preparation scheme is provided for tumor immunotherapy, autoimmune disease regulation and personalized cell therapy through systematic integration of physical field regulation, bionic scaffold design and genetic engineering means.

The utility model discloses a lighting mechanism and glasses, and relates to the technical field of lighting, and the lighting mechanism comprises a lighting unit which comprises a lighting assembly, a connecting assembly, a fixing assembly, a rotating assembly and an elastic assembly. The beneficial effects of the utility model are that aiming at the problem that the steel seal content is difficult to clearly identify by naked eyes, the readability of the medicine validity period information is obviously improved, a pharmacist can be ensured to quickly and accurately read the information, and the ultraviolet ray switch is provided with an anti-mistaken touch automatic switch design, so that the safety of using ultraviolet rays is improved, and the safety is improved. The device is convenient to carry, and the device can be directly clamped on glasses for use; for non-myopia people, the flashlight can be installed on the provided special glasses frame to form a complete device, the working efficiency of pharmacists is improved, the working intensity is reduced, the device is suitable for various crowds, and the universality of the device is improved.