Results 81 to 90 of about 1,780,529 (252)

Self‐Assembly of Organic–Inorganic Copolymers Toward Bio‐Inspired Cementitious Composites

open access: yesAdvanced Science, EarlyView.
Organic–inorganic copolymerization of calcium silicate hydrate and thioctic acid produces a self‐organized nanocomposite inspired by the disordered collagen–mineral architecture of trabecular bone. The resulting material combines a compressive strength above 300 MPa with intrinsic physical reprocessibility, retaining over 80% of its strength and energy
Zonglin Xie   +8 more
wiley   +1 more source

Case investigation on application of steel fibers in roller compacted concrete pavement in Thailand

open access: yesCase Studies in Construction Materials, 2019
This case study aims to investigate the improvement in mechanical behavior of roller compacted concrete pavement (RCCP) mixed with steel fibers. Hooked end type steel fibers were used at 0.5 and 1.0% by volume fractions.
Piti Sukontasukkul   +5 more
doaj   +1 more source

Determinação da resistência flexural de cimentos resinosos comerciais, com variação do sistema de ativação e tempo de armazenamento pós-ativação [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em Odontologia.Este estudo investigou a resistência flexural de amostras confeccionadas com os cimentos resinosos duais Enforce, RelyX
Ferreira, Ana Paula Ribeiro Bonilauri
core  

3D Printed Meter‐Scale Soft Origami Robots Capable of Load‐Bearing Actuation Via Crease Stiffness Modulation

open access: yesAdvanced Science, EarlyView.
Origami has inspired numerous soft deployable mechanisms for safe human‐robot interaction, while its intrinsic kinematic instability at arbitrary configurations limited their practical robotic application. This work presents a 3D printed meter‐scale origami robotic actuator capable of load‐bearing deformation through creaseline stiffness modulation.
Sung Yol Yu   +5 more
wiley   +1 more source

Influence of the Flexural Fatigue Properties of Recycled Aggregate Concrete Under Different Emery Replacement Ratios

open access: yesBuildings
Five groups of recycled aggregate concrete (RAC) mixtures with mass replacement ratios of emery (0, 5%, 10%, 15%, 20%) were prepared. The cubic compressive strength, splitting tensile strength, flexural strength, and flexural fatigue properties under ...
Chuheng Zhong   +4 more
doaj   +1 more source

Influência do método de ativação sobre a resistência flexural de um cimento resinoso de dupla polimeração [PDF]

open access: yes, 2003
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em Odontologia.O propósito deste estudo foi avaliar a influência da fotoativação através da porcelana sobre a resistência flexural de ...
Rebelatto, Cassius
core  

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

open access: yesAdvanced Science, EarlyView.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang   +5 more
wiley   +1 more source

Flexural strength of composites: effects of the activation techniques and fiber reinforcement.

open access: yesBrazilian Dental Science, 2015
Objective: To evaluate the flexural strength of direct (Charisma) and indirect (Solidex) composites, with or without fiber reinforcements (Ribbond), cured with LED or Stroboscopic Xenon Light.MaterialandMethods: Resin bars made with or without fiber ...
Silvio José Mauro   +4 more
doaj   +1 more source

Influence of infill concrete strength on the flexural behaviour of pultruded GFRP square beams

open access: yes, 2016
This paper presents experimental and analytical studies on the effect of the compressive strength of the concrete infill on the flexural behaviour of composite beams.
Lokuge, Weena   +3 more
core   +1 more source

Wood Carbon Sponge/SiO2 Aerogel Composites with Anisotropic Broadband Microwave Absorption, Elastic Resilience, and Thermal Insulation

open access: yesAdvanced Science, EarlyView.
Anisotropic wood carbon sponge/SiO2 aerogel composites are constructed, revealing a robust direction‐dependent permittivity ordering (tangential > radial > axial). The radial direction delivers an ultra‐broadband effective absorption bandwidth of 11.6 GHz at only 4.95 mm, while the tangential direction offers superior compressibility and thermal ...
Shuo Sun   +7 more
wiley   +1 more source

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