Results 21 to 30 of about 69,331 (292)

4D Printing Dual Stimuli-Responsive Bilayer Structure Toward Multiple Shape-Shifting

open access: yesFrontiers in Materials, 2021
4D printing has been attracting widespread attention because its shape and performance can change under stimuli. The existing 4D printing technology is mostly limited to responsive to single stimulus, which means that the printing structure can only ...
Luquan Ren   +11 more
doaj   +1 more source

Polysaccharide‐based biomaterials in a journey from 3D to 4D printing

open access: yesBioengineering & Translational Medicine, 2023
3D printing is a state‐of‐the‐art technology for the fabrication of biomaterials with myriad applications in translational medicine. After stimuli‐responsive properties were introduced to 3D printing (known as 4D printing), intelligent biomaterials with ...
Hanieh Shokrani   +8 more
doaj   +1 more source

Biomaterials-based additive manufacturing for customized bioengineering in management of otolaryngology: a comprehensive review

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Three-dimensional (3D)/four-dimensional (4D) printing, also known as additive manufacturing or fast prototyping, is a manufacturing technique that uses a digital model to generate a 3D/4D solid product.
Jigar Vyas   +4 more
doaj   +1 more source

Biomimetic spatial and temporal (4D) design and fabrication [PDF]

open access: yes, 2013
We imagine the built environment of the future as a ‘bio-hybrid machine for living in’ that will sense and react to activities within the space in order to provide experiences and services that will elevate quality of life while coexisting seamlessly ...
J.F. Vincent   +6 more
core   +3 more sources

Two-Way 4D Printing: A Review on the Reversibility of 3D-Printed Shape Memory Materials

open access: yesEngineering, 2017
The rapid development of additive manufacturing and advances in shape memory materials have fueled the progress of four-dimensional (4D) printing. With the right external stimulus, the need for human interaction, sensors, and batteries will be eliminated,
Amelia Yilin Lee, Jia An, Chee Kai Chua
doaj   +1 more source

4D Cubism: Modeling, Animation and Fabrication of Artistic Shapes [PDF]

open access: yes, 2018
The paper describes an original approach to creating and producing artistic shapes in a cubist style. We propose mathematical models and algorithms for adding cubist features to (or cubification of) time-variant sculptural shapes as well as a practical ...
Adzhiev, Valery   +2 more
core   +1 more source

Recent progress of 4D printing technology

open access: yesJournal of Aeronautical Materials, 2019
4D Printing technology can achieve additive manufacturing of smart materials. Recent progresses of 4D printing composite materials, shape memory polymers, shape memory alloys and other smart materials were reviewed.
LU Haizhou   +4 more
doaj   +1 more source

Nilpotent Symmetries For Matter Fields In Non-Abelian Gauge Theory: Augmented Superfield Formalism [PDF]

open access: yes, 2004
In the framework of superfield approach to Becchi-Rouet-Stora-Tyutin (BRST) formalism, the derivation of the (anti-)BRST nilpotent symmetries for the matter fields, present in any arbitrary interacting gauge theory, has been a long-standing problem.
Aitchison I. J. R.   +15 more
core   +4 more sources

Mechanics-based design strategies for 4D printing: A review

open access: yesForces in Mechanics, 2022
Four-dimensional (4D) printing is an emerging technology that aims to endow the additive manufactured objects with the capability of time-dependent transformation.
Chao Yuan, Tongqing Lu, T.J. Wang
doaj   +1 more source

The potential of additive manufacturing in the smart factory industrial 4.0: A review [PDF]

open access: yes, 2019
Additive manufacturing (AM) or three-dimensional (3D) printing has introduced a novel production method in design, manufacturing, and distribution to end-users.
Dehghanghadikolaei, Amir   +5 more
core   +1 more source

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