Results 111 to 120 of about 302,442 (338)

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

, 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  

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

Advanced 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, Suning Li, Fuwen Zhong, Gongkun Xiang, Mustapha Jamaa Garba, Yi Tian, Jun Wu, Zhiwu Yu, Qiang Yuan   +8 more
wiley   +1 more source

Flexural fatigue behavior of machinable and light-activated hybrid composites for esthetic restorations [PDF]

, 2004
The purpose of this study was to determine the flexural strength and flexural fatigue strength of a machinable composite (GN-I) and three hybrid composites (Artglass, Estenia, and Gradia).
Yoshida, Keiichi, Nobuko Morimoto, Atsuta, Mitsuru, Yukiko Tsuo, Morimoto, Nobuko, Mitsuru Atsuta, Tsuo, Yukiko, Keiichi Yoshida   +7 more
core   +1 more source

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

Advanced 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, Sang‐Joon Ahn, Wonchul Lee, Seunguk Moon, Hyun‐Jin Hong, Kyu‐Jin Cho   +5 more
wiley   +1 more source

Flexural properties of sawdust reinforced phenolic composites: Pilot study [PDF]

, 2009
The advantageous properties of sawdust and phenolic resins were combined by making sawdust reinforced phenolic composites with different percentages by weight of sawdust. The sawdust was divided into three grades in accordance with its particulate size.
Mohar Trada, Cardona, Francisco, Trada, Mohar, Vigier, Gurlaume, Franciso Cardona, Harry Siu‐Lung Ku, Gurlaume Vigier, Ku, Harry Siu-Lung   +7 more
core   +1 more source

Sunscreen‐Inspired Nano‐Pesticide for UV‐Shielding and Laccase‐Responsive Delivery of Mancozeb With Enhanced Fungicidal Efficacy and Ecological Safety

Advanced Science, EarlyView.
The sunscreen‐inspired nano‐pesticide, MCB@URFSL, provides UV‐shielding, enhanced rainfastness, and laccase‐responsive delivery for improved fungicidal efficacy and high ecological safety. ABSTRACT Fungicides are a crucial tool for protecting crops and ensuring consistent food supply.
Jin Yan, Xin Ye, Linping He, Cheng Hong, Xu‐Huan Zhao, Gizachew Mulugeta Manahelohe, Xiao‐Tong Feng, Yu‐Cheng Gu, Qiang Bian, Min Wu, Ming‐Zhi Zhang   +10 more
wiley   +1 more source

Responsive Open Microfluidic Logic for Mechanical Computing

Advanced Science, EarlyView.
Coupling elasticity with capillarity transforms mechanical compression into binary fluidic states, enabling deterministic logic in open microfluidic circuits. This work demonstrates that computation can emerge from interactions between mechanic and fluidic domains, establishing a general strategy for embedding information processing directly within ...
Roi Almog, Bat‐El Pinchasik
wiley   +1 more source

Ultrathin, Fully Solution‐Processed P(VDF‐TrFE) Piezoelectric Sensor Matrix for Electronic Skin

Advanced Electronic Materials, EarlyView.
An ultrathin, fully solution‐processed 4×$\times$4 piezoelectric sensor array is developed for skinconformal electronicskin applications. The device integrates inkjetprinted polymer electrodes with a 226 nm P(VDFTrFE) active layer on a 4.53 μm$\umu{\rm m}$ Parylene C substrate, enabling extreme flexibility and robust tactile sensing. The array exhibits
Ninja Kajas, Karem Lozano Montero, Leena Ukkonen, Veikko Surakka, Matti Mäntysalo   +4 more
wiley   +1 more source

Magnesium‐Retention Assisted Synthesis of High‐Performance Zintl Thermoelectrics

Angewandte Chemie, EarlyView.
Mg volatilization and chemical instability during high‐temperature synthesis hinder the scalable fabrication of Mg‐based thermoelectrics. Here, a magnesium‐retention assisted synthesis (MRAS) strategy stabilizes Mg using a sacrificial Mg reservoir and an inert‐gas‐regulated melting environment.
Boxuan Hu, Xiao‐Lei Shi, Tianyi Cao, Nanhai Li, Chao Zhang, Sen Wang, Siqi Liu, Meng Li, Dmitri Golberg, Zhi‐Gang Chen   +9 more
wiley   +2 more sources

Effect on compressive and flexural strength of agave fiber reinforced adobes

Journal of Natural Fibers, 2018
Adobe bricks, formed from raw clay, are used as construction materials since ancient times. Their main drawback is a low flexural and compressive strength. Agave bagasse is a waste material from the Mezcal production process.
Magdaleno Caballero-Caballero, Fernando Chinas-Castillo, José Luis Montes Bernabé, Rafael Alavéz-Ramirez, María Eugenia Silva Rivera   +4 more
doaj   +1 more source