5results about How to "Natural shape" patented technology

The application relates to the technical field of digital human body models, in particular to a digital human body muscle model posture generation method and device. The method comprises the following steps: obtaining a tomographic image of an initial posture of a human body by using high-precision CT, and inversely modeling a geometric model of human body bones and muscles according to the tomographic image; calculating a first motion influence weight of each muscle node attached to a bone node according to each muscle node and the bone node; calculating a second motion influence weight of each muscle node according to the influence of adjacent muscle nodes on each muscle node; calculating a comprehensive weight of each muscle node according to the first motion influence weight and the second motion influence weight; and calculating a Laplace coordinate of a next moment of a current muscle node according to the comprehensive weight of the current muscle node, the position of the current muscle node and adjacent muscle nodes. The application generates a high-fidelity muscle geometric model by using a Laplace mesh deformation constraint technology.

This application discloses a hydrogel composition, its preparation method, and its applications, relating to the fields of regenerative medicine and biomedical materials technology. The hydrogel composition comprises o-nitrobenzyl alcohol-modified tetra-arm polyethylene glycol and methacrylated hyaluronic acid. The hydrogel composition provided in this application addresses the problems in related technologies that rely on tissue flaps or prostheses for repair, such as large trauma, easy foreign body reaction, asymmetrical shape, unnatural feel, and the inability of tissue engineering materials to be rapidly molded intraoperatively, requiring secondary surgery.

This utility model discloses an eyelash fixing component for doll eyes, including a shell, a support plate, a limiting plate, a pad, an eyeball block, an eyelash component, and a connecting rod. The eyelash component is clamped between the support plate and the limiting plate by a connecting strip. The arc-shaped protrusion of the limiting plate guides the eyelashes to a natural arc shape, avoiding twisting or displacement. The pressure strip is embedded in the arc-shaped through hole to restrict the eyelashes from moving inward. Double locking prevents them from falling off, making the eyelashes firmly fixed and naturally shaped. The connecting rod passes through the pad, limiting plate, support plate, and shell. The tapered slope of the retaining ring squeezes the through hole of the shell to achieve elastic expansion. It automatically rebounds and locks instantly after passing through, fixing each component between the hemispherical block and the retaining ring at one time, achieving rapid assembly and high-precision positioning. This design allows for non-destructive disassembly, and the eyelashes can be replaced individually when damaged.

This invention provides a method, apparatus, electronic device, and storage medium for generating flame effects. The method involves determining an initial sampling point along the sampling direction of the pixel to be rendered; using this initial sampling point as the current sampling point, and iteratively executing the following steps: controlling the current sampling point to shift over time; determining a sampling step size based on the distance from the shifted current sampling point to the geometry; sampling based on the sampling step size and sampling direction to obtain the next sampling point; determining the color parameters of the current sampling point based on reference color parameters, the step depth of the current sampling point, and the sampling step size; using the next sampling point as the updated current sampling point; and determining the final color parameters of the pixel based on the color parameters of the initial and subsequent sampling points, and rendering the pixel to obtain the flame effect. This method achieves dynamic flame rendering without relying on textures or voxel data; the effect can be changed simply by adjusting relevant parameters in the program, improving the efficiency of flame effect production and iteration.

This application relates to the field of polymer material molding and processing technology, specifically disclosing a method for preparing a petal cup with a flower core bottom structure. The raw materials used include high-amylose corn starch, polycaprolactone diol, glycerol-water azeotropic mixture, food-grade montmorillonite nanosheets, citric acid, choline chloride, and sodium hypophosphite. These components synergistically constitute a raw material system suitable for biomimetic structural molding. The preparation method is as follows: first, humidity gradient gel particles are prepared; then, they are vibrated and sheared to fill the thin-walled area of ​​the petals; subsequently, gradient temperature and pressure curing under a temperature difference between the male and female molds allows for selective cross-linking and shaping of the petals; next, controlled-speed pressure release under a CO2 atmosphere eliminates internal stress and shapes a naturally curled form; finally, the mold is opened and cured to obtain the finished product. This petal cup can be used in high-end food packaging, home decoration, and art ware scenarios. The finished petals have complete shapes and clear textures, and the flower core bottom structure is dense and stable, possessing both good mechanical properties and biomimetic aesthetic effects.