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Stereolithography is a 3D-printing technique that uses photopolymerization to bind substrate that has been laid layer upon layer, creating a polymeric network. As opposed to fused-deposition modeling, where the extruded material hardens immediately to form layers, 4D printing is fundamentally based in stereolithography, where in most cases ultraviolet light is used to cure the layered ...
The four pigments in a bird's cone cells (in this example, estrildid finches) extend the range of color vision into the ultraviolet. [1]Tetrachromacy (from Greek tetra, meaning "four" and chroma, meaning "color") is the condition of possessing four independent channels for conveying color information, or possessing four types of cone cell in the eye.
3D-printing techniques have been used in a variety of industries for the overall goal of fabricating a product. Organ printing, on the other hand, is a novel industry that utilizes biological components to develop therapeutic applications for organ transplants.
4D or 4-D primarily refers to: 4-dimensional spacetime: three-dimensional space of length, ... 4D, a photo print size for digital cameras; Arts and entertainment
Different models of 3D printing tissue and organs. Three dimensional (3D) bioprinting is the use of 3D printing–like techniques to combine cells, growth factors, bio-inks, and biomaterials to fabricate functional structures that were traditionally used for tissue engineering applications but in recent times have seen increased interest in other applications such as biosensing, and ...
Bill Maher Says ‘I May Quit’ HBO’s ‘Real Time’ Because ‘I Don’t Want to Do’ More Donald Trump Coverage
A four-dimensional product (4D product) considers a physical product as a life-like entity capable of changing form and physical properties autonomously over time. It is an evolving field of product design practice and research linked to similar concepts at the material scale (programmable matter and four-dimensional printing), however, typically utilizes sensors and actuators in order to ...
Heather Locklear is opening up about her favorite memories from filming the sitcom Spin City — and sharing what was different about working with Michael J. Fox versus his replacement in the ...