Results 101 to 110 of about 19,754 (274)

Solid Freeform Fabrication An Advanced Manufacturing Approach [PDF]

, 1990
Solid freeform fabrication (SFF) is the production of freeform solid objects directly from a computer model without part-specific tooling or human intervention.
Barlow, J.W., Beaman, J.J., Bourell, D.L., Marcus, H.L.   +3 more
core   +1 more source

Versatile Standing Wave Generation Between Arbitrarily Oriented Surfaces Using Acoustic Metasurface Deflectors and Retroreflectors

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
A novel method for generating versatile standing wave fields using an acoustic metasurface deflector and retroreflector is introduced. By overcoming traditional constraints of parallel surfaces, the approach enables customizable wave patterns and enhances applications in particle manipulation.
Chadi Ellouzi, Farhood Aghdasi, Ali Zabihi, Amir K. Miri, Chen Shen   +4 more
wiley   +1 more source

Morphology and properties of a photopolymer/clay nanocomposite prepared by a rapid prototyping system

Science and Engineering of Composite Materials, 2014
This study represents an in situ polymerization by preparation of tetrafunction polyester acrylate mixed with 1,6-hexanediol diacrylate/clay nanocomposite by digital light processor rapid prototyping.
Chiu Shih-Hsuan, Wicaksono Sigit Tri, Chen Kun-Ting, Pong Sheng-Hong   +3 more
doaj   +1 more source

Development of low cost packaged fibre optic sensors for use in reinforced concrete structures [PDF]

, 2019
There is an ongoing need to measure strains in reinforced concrete structures more reliably and under a range of circumstances e.g. long term durability (such as effects of cracking and reinforcement corrosion), response to normal working loads and ...
Banerji, P., Chikermane, S., Grattan, K. T. V., McKinley, B., Scott, R.H., Sun, T., Vidakovic, M.   +6 more
core   +1 more source

Electrothermally Controlled 3D‐Printed Shape Memory Polymers for Near‐Ambient Temperature Soft Robotic Applications

Advanced Intelligent Systems, EarlyView.
In this article, we develop bespoke resins for stereolithography 3D‐printing of soft‐robotic grippers that are controlled remotely by electrothermal stimulus near ambient temperatures. Turning on the electrical control, each finger can be actuated separately.
Kalyan Ghosh, Thomas Sweeney, Ji Zhang, Shaashwat Saraff, Sohini Kar‐Narayan   +4 more
wiley   +1 more source

Analysis of PEA photopolymers at zero spatial frequency limit [PDF]

, 2012
The PEA photopolymer is composed of dipentaerythritol penta/hexa-acrylate as monomer and binder, N-vinyl pirrolidone as crosslinker, ethyl eosin as dye and N-methyl diethanolamine as radical generator. This photopolymer is suitable to work with dispersed
Beléndez, Augusto, Gallego, Sergi, Márquez, Andrés, Neipp, Cristian, Ortuño, Manuel, Pascual, Inmaculada, Riquelme Morell, Marina   +6 more
core   +2 more sources

3D‐Printed Models in Oral Surgery Simulation Training: A Scoping Review

Journal of Dental Education, EarlyView.
ABSTRACT Background Advancements in three‐dimensional (3D) printing have introduced innovative tools for medical and dental education. In dental surgery, 3D‐printed simulation models offer valuable presurgical training. This review explores the scope, study types, key findings, limitations, and future research needs to enhance their application in ...
Shahrzad Rahimizadeh Nahavandi, Leila Gholami, Amir Parham Pirhadi Rad, Morteza Ghojazadeh, Kevin Aminzadeh, Rana Tarzemany   +5 more
wiley   +1 more source

Effects of silanized nano-Al2O3 fillers on the mechanical properties and printing accuracy of photopolymer resins for 3D printing dental applications

Materials Research Express
Three-dimensional (3D) printing dental applications are broadly applied in multiple specialties of dentistry facilitating diagnosis and treatment greatly. However, the current photopolymer materials for 3D printing dental applications often fail to yield
Shiyu Ji, Jingyi Ren, Jing Zhang, Wenjuan Zhou, Zhonghao Liu   +4 more
doaj   +1 more source

3D Shape Reconstruction of 3D Printed Transparent Microscopic Objects from Multiple Photographic Images Using Ultraviolet Illumination

Micromachines, 2018
We propose and demonstrate a simple, low-cost, three-dimensional (3D) shape acquisition method for transparent 3D printed microscopic objects. Our method uses ultraviolet (UV) illumination to obtain high-contrast silhouette images of transparent 3D ...
Keishi Koyama, Masayuki Takakura, Taichi Furukawa, Shoji Maruo   +3 more
doaj   +1 more source

Wide‐Field Autostereoscopic 3D Display Enabled by Isolated Microlens Array and Gradual Radius Lens Design

Journal of the Society for Information Display, EarlyView.
This paper proposes an Isolated Microlens Array (I‐MLA) with Gradual Radius Lens (GRL) design for a wide‐field autostereoscopic floating 3D display in compact form. Extended coding pitch and directional mesh eliminate crosstalk, while radially varying microlens curvature maintains sharp images at large angles. Simulations show a practical continuous 40°
Hsin‐You Hou, Cheng‐Huan Chen
wiley   +1 more source