Results 131 to 140 of about 23,308 (300)
Advanced Materials Technologies, EarlyView.The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin +5 more
wiley +1 more source
Luminescence and Photochromism in Lanthanide‐Doped Hackmanites
Advanced Optical Materials, EarlyView.Lanthanide‐doped lithium hackmanite derivatives are prepared utilizing a doped LiAlSiO4 precursor to modify luminescent and photochromic properties. Upon UV excitation, europium doping results in green Eu2+ persistent luminescence from shallow traps. Contrarily, samarium doping induces unusual near‐infrared photochromism.
Joshua Baggott +7 more
wiley +1 more source
Investigation of the flexural properties of reinforced concrete beams strengthened by externally bonded steel plates. [PDF]
, 1980 It is sometimes necessary to strengthen in situ concrete structures. Externally bonded plate reinforcement has been successfully applied to structures with subsequent satisfactory performance.
Bloxham, John W
core
Thermo‐Derived Cholesteric Liquid Crystal Elastomer Pattern with Composite Structural Colors
Advanced Optical Materials, EarlyView.A thermochromic cholesteric liquid crystal (CLC) oligomer was synthesized for the preparation of CLC elastomer (CLCE) films with dual reflection bands. Subsequently, a CLCE pattern with composite structural colors was prepared, which was suitably applied for decoration and anti‐counterfeiting.
Li Zhong, Yi Li, Wei Liu, Yonggang Yang
wiley +1 more source
Waveguide Photoactuators: Materials, Fabrication, and Applications
Advanced Robotics Research, EarlyView.Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi +4 more
wiley +1 more source
Hard and Tough Epoxy Resins Modified with Thermosetting Materials
Ibn Al-Haitham Journal for Pure and Applied Sciences, 2019 Epoxy resins were modified by some thermosetting materials using unsaturated polyesters which were cured with styrene , MMA ,and MA . When unsaturated Polyester ( as thermosetting material ) was used , and cured with styrene showed better results than ...
H . M . Abdullah
doaj
3D‐Nanoprinted Fluidically Steerable Soft Robotic Microcatheters
Advanced Robotics Research, EarlyView.This work introduces a ∼3‐French (1 mm‐in‐diameter) soft robotic microcatheter fabricated by means of two‐photon direct laser writing. The 3D‐printed microcatheter enables remote, on‐demand steering via microfluidic actuation for guidewire‐free navigation of vascular networks as well as microcatheter‐mediated delivery of fluidic payloads to target ...
Bailey M. Felix +17 more
wiley +1 more source
Rheological properties and rheokinetic of Hardening of modified thermoset oligomeres
Тонкие химические технологии, 2008 Modification of epoxy resins of silicon ethers (tethraetoxysilane – TEOS, and ethylsilicate – ET-40) was investigated. Phase diagrams of mixtures were given by the turbidity points method.
H. V. Taranenko, L. B. Kandyrin
doaj
Química NovaEpoxy resins are an important class of thermostable polymers, widely used in structural applications or as adhesives. However, the low fracture resistance is their main weakness in many applications.
Roberta Jachura Rocha +3 more
doaj +1 more source