Results 171 to 180 of about 134,037 (330)

Optimum step design for centering of pistons moving in an incompressible fluid [PDF]

open access: yes
Hydrodynamic effects are analyzed for a stepped piston moving within a tight clearance tube filled with an incompressible fluid. Hydrostatic effects are analyzed and a complete solution is obtained and an optimum step design for centering of the piston ...
Etsion, I., Hamrock, B. J.
core   +1 more source

Stimuli‐Responsive 3D‐Printed Structurally Colored Materials Based on Core–Shell Particle Architectures

open access: yesMacromolecular Materials and Engineering, EarlyView.
A novel, structurally colored and pH‐responsive filament for FDM 3D‐printing is presented, which is based on tailored core–shell particles with methacrylic acid as a comonomer in the particle shell. The pH‐responsiveness of the printed objects is achieved due to particle swelling in alkaline conditions.
Sascha Verwaayen   +6 more
wiley   +1 more source

Simulation of piston and piston ring dynamics

open access: yes, 2019
Piston group is the main contributor to friction with an amount of 40%-50% of the total IC engine friction. The market is looking for efficient friction reduction methods without drawbacks in durability and NVH. In light of this, efficient parameter studies and optimization processes in multibody dynamics simulation are becoming increasingly important ...
openaire   +1 more source

Convergence of Organ‐on‐a‐Chip and Freeform Printing of Sacrificial Poly(2‐cyclopropyl‐2‐oxazoline) Enables the Generation of Perfusable Endothelialized Channels in Hydrogels

open access: yesMacromolecular Rapid Communications, EarlyView.
We employ freeform printing of thermo‐responsive poly(2‐oxazoline) to directly fabricate suspended sacrificial vascular templates within Organ‐on‐a‐chip devices. This enables circular, perfusable channels down to 200 µm without post‐processing.
Giulia Maria Di Gravina   +7 more
wiley   +1 more source

FEA Simulation of Crimping Pressure Distribution in Titanium and Teflon Stapedotomy Prostheses. [PDF]

open access: yesMaterials (Basel)
Ceddia M   +5 more
europepmc   +1 more source

Rheological Properties of Polyether Ether Ketones Containing Multi‐Walled Carbon Nanotubes

open access: yesPolymer Engineering &Science, EarlyView.
Rheology, Melt Flow, and Spinnability of PEEK‐MWCNT Melts After Compounding. ABSTRACT In this study, the rheological and melt‐flow behavior of polyether ether ketone (PEEK) filled with multi‐walled carbon nanotubes (MWCNTs) was investigated to evaluate its melt‐spinnability.
Toty Onggar, Chokri Cherif
wiley   +1 more source

Material Development and Foam Extrusion Processing of Thermoplastic Starch‐Based Compounds

open access: yesPolymer Engineering &Science, EarlyView.
Schematic representation of the project: a compound material based on thermoplastic starch and PBAT is developed for further processing in the foam extrusion process to achieve a flexible foam sheet with a low density and fine‐pored foam structure. ABSTRACT An investigation into the properties of starch‐based compounds is conducted to determine their ...
Tien Viet Anh Vu   +4 more
wiley   +1 more source

Exploring biofiber properties and their influence on biocomposite tensile properties

open access: yesPolymer International, EarlyView.
The study measured the physical, flow and chemical properties of 10 biofibers. It characterized the tensile properties of derived biocomposites and linked them using regression models, showing robust predictive performance. Abstract Biofibers serve as effective reinforcements for neat polylactic acid (PLA) in biocomposites, offering an attractive ...
Oluwafemi A. Oyedeji   +5 more
wiley   +1 more source

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