2 results about "Local Reaction" patented technology

This invention provides a programmable mechanical metamaterial structure generation method and system based on a reaction-diffusion morphogenesis mechanism. By establishing a reaction-diffusion kinetic model, the structural morphology self-organizes under the coupling effect of local reaction and spatial diffusion, thereby generating structural morphologies with complex topological features and aperiodic spatial distribution characteristics. By setting spatial parameter fields such as diffusion coefficient, supply rate, and disappearance rate within the design domain, and introducing a direction control field to adjust the diffusion direction, the scale characteristics, connectivity, and anisotropy characteristics of the generated structure can be regionalized and continuously controlled. Through threshold transformation, boundary extraction, and geometric reconstruction of the morphology generation results, the generated structure can be directly converted into a two-dimensional or three-dimensional geometric model. This invention expands the design space of mechanical metamaterial structures and realizes an effective connection between structure generation and engineering design and manufacturing.

The utility model relates to medical instrument technical field especially, and more particularly to a kind of measuring scale of vaccine clinical test inoculation local reaction.The technical scheme, including measuring scale main part, is provided with graduated scale for vaccine inoculation site reaction on the measuring scale main part;The measuring scale main part includes the first circular disc, second circular disc, third circular disc and fourth circular disc of increasing diameter in turn;The first circular disc, second circular disc, third circular disc and fourth circular disc and connecting strip are all transparent flexible material.The utility model can quickly and accurately measure the maximum diameter of irregular shape, reduce measurement error, can be visually fast and carry out the grading evaluation of local reaction, use disposable film, reduce the risk of skin infection.