Results 241 to 250 of about 411,329 (300)

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source

4D morphogenetic tissue engineering via gradient-crosslinked microporous hydrogel scaffolds. [PDF]

Mater Today Bio
Yu H, Wu G, Zhang J.
europepmc   +1 more source

Influence of Printing Orientation and Ageing on Mechanical Properties of 3D-Printed Resins for Occlusal Splints. [PDF]

Materials (Basel)
Bosoni C, Vichi A, Franchi L, Al-Johani H, Goracci C.   +4 more
europepmc   +1 more source

Research on the influence mechanism of structural separation on the damage excitation of bridge piers under seismic motion. [PDF]

PLoS One
Wen Y, Liu Y, Ning X, Xia H, An W.
europepmc   +1 more source

Polymer additive manufacturing tools for sheet metal forming: a combined simulation and experimental study. [PDF]

Sci Rep
Bhatia CV, Patel D, Vats R, Zameer MMF, Kumar R, Rajhi AA, Duhduh AA, Lozanovic J.   +7 more
europepmc   +1 more source

Bending behavior of concrete-filled FRP wound tubular arches with internal FRP bars. [PDF]

Sci Rep
Li B, Yang Z, Qi Y, Zhou Z, Wang G.
europepmc   +1 more source

Evaluation of the Residual Stress in ZrO₂ Coatings Deposited on Different Substrates Through Image Relative Method. [PDF]

Materials (Basel)
Li H, Yan H, Zhao H, Mao Y, Zhang X, Bao Y.   +5 more
europepmc   +1 more source

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Vision loss with bending over

Survey of Ophthalmology, 2015
A 66-year-old African American man presented with episodic transient visual loss triggered by bending forward. The initial examination did not suggest intraocular pathology and the patient was nearly sent for vascular evaluation given his cardiovascular risk factors.
Michele D. Lee, Jeffrey G. Odel, Danielle S. Rudich, Robert Ritch, Mark L. Moster   +4 more
openaire   +2 more sources

Low-loss semiconductor waveguide bends

Optics Letters, 1988
An experimental comparison is made between the losses of waveguide bends in disorder-delineated waveguides in semiconductor superlattices composed of GaAs and AlAs layers for simple abrupt bends and abrupt bends with an additional half-angle guiding wall proposed by Shiina et al. [Opt. Lett. 11, 736 (1986)].
P D, Swanson, F, Julien, M A, Emanuel, L, Sloan, T, Tang, T A, Detemple, J J, Coleman   +6 more
openaire   +2 more sources