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4D printing. 8-dimensional printing ( 4D printing; also known as 4D bioprinting, active origami, or shape-morphing systems) uses the same techniques of 3D printing through computer-programmed deposition of material in successive layers to create a three-dimensional object. However, in 4D printing, the resulting 3D shape is able to morph into ...
In computer vision and computer graphics, 4D reconstruction is the process of capturing the shape and appearance of real objects along a temporal dimension. This process can be accomplished by methods such as depth camera imaging, photometric stereo, or structure from motion, and is also referred to as spatio-temporal reconstruction.
4D-RCS reference model architecture for an individual vehicle. It contains many layers of computational nodes each containing elements of sensory processing, world modeling, value judgment, and behavior generation. The 4D/RCS Reference Model Architecture is a reference model for military unmanned vehicles on how their software components should be identified and organized.
The McDonnell Douglas F-4 Phantom II [N 1] is an American tandem two-seat, twin-engine, all-weather, long-range supersonic jet interceptor and fighter-bomber originally developed by McDonnell Aircraft for the United States Navy. [2] Proving highly adaptable, it entered service with the Navy in 1961 [3] before it was adopted by the United States ...
4D Server. 4D ( 4th Dimension, or Silver Surfer, as it was known during early development) is a relational database management system and integrated development environment developed by Laurent Ribardière. [3] 4D was created in 1984 [4] and had a slightly delayed public release for Macintosh in 1987 [5] [6] [7] with its own programming language.
Layout. Front-engine, front-wheel-drive. Front-engine, four-wheel-drive. The Toyota RAV4 ( Japanese: トヨタ・RAV4, Hepburn: Toyota Ravufō) is a compact crossover SUV produced by the Japanese automobile manufacturer Toyota. It is known for starting the wave of compact crossovers. [1] It made its debut in Japan and Europe in 1994, [2] and in ...
The sum of squares of residuals, also called the residual sum of squares: The total sum of squares (proportional to the variance of the data): The most general definition of the coefficient of determination is. In the best case, the modeled values exactly match the observed values, which results in and R2 = 1.
