Results 91 to 100 of about 38,500 (312)

Droplet Electricity Generators With Maximized Energy Collection Zone Enabled by Aloe‐Inspired Midrib and Cuticle

open access: yesAdvanced Materials, EarlyView.
An Aloe‐pinspired droplet electricity generator (A‐DEG) overcomes the limited energy collection zone of conventional DEGs by guiding impact droplets through a channeling midrib and artificial cuticle. The channeling midrib induces uni‐directional droplet spreading, while the artificial cuticle on the midrib further reinforces this behavior through its ...
Gibeom Lee   +8 more
wiley   +1 more source

Significance of cone beam computed tomography based implant treatment planning and fabrication of stereolithographic surgical guides for implant therapy in the nasopalatine canal region

open access: yesJournal of International Clinical Dental Research Organization, 2012
Implants are being used in practice today with ever increasing types of implants and simple procedures through which dentists can place them. However, the chance for a complication to occur while placing implants has been largely under-estimated. This is
Ashok Balasundaram   +5 more
doaj   +1 more source

Development of a Multi-Material Stereolithography 3D Printing Device

open access: yesMicromachines, 2020
Additive manufacturing, or nowadays more popularly entitled as 3D printing, enables a fast realization of polymer, metal, ceramic or composite devices, which often cannot be fabricated with conventional methods.
Bilal Khatri   +4 more
doaj   +1 more source

Additively manufacturable micro-mechanical logic gates. [PDF]

open access: yes, 2019
Early examples of computers were almost exclusively based on mechanical devices. Although electronic computers became dominant in the past 60 years, recent advancements in three-dimensional micro-additive manufacturing technology provide new fabrication ...
Chizari, Samira   +6 more
core   +2 more sources

Wavelength‐Dependent 3D Printing: Introducing 3D Printed Action Plots

open access: yesAdvanced Materials, EarlyView.
Photochemical action plots – wavelength‐dependent reactivity studies of photoactive molecules – can show a significant mismatch between the peak of photochemical action and maximum absorbance in photopolymerization systems in solution. How this knowledge translates to photocuring in light‐driven 3D printing remains unexplored.
Federica Sbordone   +8 more
wiley   +1 more source

Automatic CAD-model Repair: Shell-Closure [PDF]

open access: yes, 1992
Shell-closure is critical to the repair of CAD-models described in the .STL file-format, the de facto solid freeform fabrication industry-standard. Polyhedral CAD-models that do not exhibit shell-closure, i.e.
Bohn, John Helge, Wozny, Michael J.
core   +2 more sources

Magnetically Actuated Drops‐on‐Stilts Microrobots for Transport and Delivery of Hydrophobic Cargo

open access: yesAdvanced Materials Interfaces, EarlyView.
Iron oxide nanoparticles and oil droplets in external magnetic fields form “drops‐on‐stilts” microrobots that transport hydrophobic cargo. Tunable nanoparticle–droplet interactions generate stilt‐like structures. Field rotation enables walking, obstacle navigation, and collective motion.
Oluwafemi Ligan   +9 more
wiley   +1 more source

Systems Issues in Solid Freeform Fabrication [PDF]

open access: yes, 1992
This paper is concerned with the systems aspects of the Solid Freeform Fabrication (SFF) technology, i.e., the issues that deal with getting an external geometric CAD model to automatically control the physical layering fabrication process as directly as
Wozny, Michael
core   +1 more source

3D Printed Multimaterial Microfluidic Transistors

open access: yesAdvanced Materials Technologies, EarlyView.
We introduce a biocompatible, high resolution photopolymer resin that closely mimics the Young's Modulus (elasticity) and reversible stretchability (no hysteresis) of poly(dimethylsiloxane) (PDMS), enabling the fabrication of microfluidic transistors (i.e., microvalves capable of proportional amplification) by multimaterial stereolithography (mSLA ...
Alireza Ahmadianyazdi   +7 more
wiley   +1 more source

Taking Lithography to the Third Dimension

open access: yesCHIMIA, 1994
Stereolithography is a new technology which allows the rapid building of plastic models directly from CAD data. The photopolymers needed for this process are developed at Ciba's research center in Marly by a project team from the Polymers ...
Paul Bernhard   +3 more
doaj  

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