Results 81 to 90 of about 100,938 (307)

On sixfold coupled buckling of thin-walled composite beams [PDF]

open access: yes, 2009
A general analytical model based on shear-deformable beam theory has been developed to study the flexural–torsional coupled buckling of thin-walled composite beams with arbitrary lay-ups under axial load.
Back   +26 more
core   +2 more sources

3D‐Printed Gastrointestinal Stents: In Vivo Evaluation in a Swine Small Bowel Perforation Model

open access: yesAdvanced Healthcare Materials, EarlyView.
Gastrointestinal fistulae and perforations can lead to severe complications including sepsis and patient death. In this work, the efficacy of 3D‐printed gastrointestinal stents composed of poly‐lactic‐acid (PLA) was evaluated in an in vivo swine model.
Gweniviere Capron   +9 more
wiley   +1 more source

Blocking a wave: Frequency band gaps in ice shelves with periodic crevasses [PDF]

open access: yes, 2011
We assess how the propagation of high-frequency elastic-flexural waves through an ice shelf is modified by the presence of spatially periodic crevasses.
Ashcroft   +9 more
core   +2 more sources

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

open access: yesAdvanced 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   +10 more
wiley   +1 more source

Flexural fatigue failure of concrete reinforced with smooth and mixing hooked-end steel fibers

open access: yesCogent Engineering, 2019
This paper presents an experimental study on flexural fatigue dynamic behavior of reinforced concrete. Steel fiber is used for the retrofitting and strengthening flexural members, by mixing short smooth steel fiber and hooked-end fiber.
Nacira Saoudi, Boudjema Bezzazi
doaj   +1 more source

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

open access: yesAdvanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz   +17 more
wiley   +1 more source

Experimental Study on the Flexural Behavior of Steel–Concrete Composite Bridge Decks with Stud–PBL Shear Connectors

open access: yesBuildings
To investigate the flexural behavior of steel–concrete composite bridge decks with stud–perfobond leist (PBL) shear connectors, two specimens were designed with the stud spacing as the main variable, and static bending tests were conducted. Additionally,
Ruifeng Dou   +5 more
doaj   +1 more source

Giant Intrinsic Carrier Mobilities in Graphene and Its Bilayer [PDF]

open access: yes, 2008
We have studied temperature dependences of electron transport in graphene and its bilayer and found extremely low electron-phonon scattering rates that set the fundamental limit on possible charge carrier mobilities at room temperature.
Elias, D. C.   +6 more
core   +5 more sources

Emergent Freestanding Complex Oxide Membranes for Multifunctional Applications

open access: yesAdvanced Materials, EarlyView.
This review surveys freestanding oxide membranes and covers fabrication and three pathways for studies and devices: strain‐free and strained membranes, and van der Waals‐integrated heterostructures. We show how coupled oxide responses map onto these routes and cross‐couple to expand behaviors.
Baowen Li   +6 more
wiley   +1 more source

Developing people capabilities for the promotion of sustainability in facility management practices [PDF]

open access: yes, 2015
Sustainability is becoming an integral part of the life-cycle development of built facilities. It is increasingly highlighted during the post construction phase, as facility management personnel can have major influence to the sustainability agenda
Sarpin, Norliana
core   +1 more source

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