Results 51 to 60 of about 109,203 (278)

Considerations on the physical and mechanical properties of lime-stabilized rammed earth walls and their evaluation by ultrasonic pulse velocity testing [PDF]

, 2018
This study examines the influence of moulding moisture content on the compressive strength, dry density and porosity of a rammed earth wall, using ultrasound as a complementary technique.
Alejandre Sánchez, Francisco Javier, Canivell, Jacinto, García Heras, Joaquín, Jiménez Aguilar, Alberto, Martín del Río, Juan Jesús   +4 more
core  

Effect of Chain Stiffness on the Structure of Single-Chain Polymer Nanoparticles [PDF]

, 2017
Polymeric single-chain nanoparticles (SCNPs) are soft nano-objects synthesized by purely intramolecular cross-linking of single polymer chains. By means of computer simulations, we investigate the conformational properties of SCNPs as a function of the ...
Arbe, Arantxa, Bacova, Petra, Colmenero, Juan, Moreno, Angel J., Pomposo, Jose A., Verso, Federica Lo   +5 more
core   +2 more sources

Piezoelectric Surface Charge and Dynamic Stimulation Synergize to Promote Cardiac Myoblast Alignment and Maturation

Advanced Healthcare Materials, EarlyView.
Surface polarization of PVDF films combined with mechanical stimulation generates piezoelectric electrical cues that modulate cardiomyoblast behaviour. Non‐poled and poled PVDF substrates provide distinct electroactive microenvironments influencing cell adhesion, proliferation, and differentiation.
Rafaela M Meira, Sylvie Ribeiro, Senentxu Lanceros‐Mendez, Clarisse Ribeiro   +3 more
wiley   +1 more source

Curvature Correction for Crack Depth Measurement Using Ultrasonic Pulse Velocity

Acoustics
This study investigates the application of Ultrasonic Pulse Velocity (UPV) for crack depth estimation in cylindrical structures, focusing on two approaches: reference measurement and dual measurement.
Dong Liu, Mengli Wu, Dimitri Donskoy
doaj   +1 more source

Functional Stability of Tetracycline: Practical Information for Its Use in Bacterial Selection. [PDF]

APMIS
ABSTRACT Genetic manipulation is widely employed in laboratories for purposes such as gene function characterization, the development of novel traits in transformed microorganisms, and the production of biotechnologically relevant compounds. A key step in this process is the selection of mutant strains, often facilitated by antibiotics.
Salazar-Sánchez A, Martínez-Ballesteros I, Martinez-Malaxetxebarria I.   +2 more
europepmc   +2 more sources

The mechanical resistance of saturated stones [PDF]

, 2010
This paper aims at investigating the effect of the presence of water on the mechanical resistance of stones. The presence of water, connected to the intrinsic properties of the stone (mineralogical composition, fabric, texture, etc.) and to the ...
Marini P, Bellopede R
core  

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

The UPV Design Factory. What is it good for?

Towards a new future in engineering education, new scenarios that european alliances of tech universities open up, 2022
Universities have the challenge and responsibility to society to train good professionals. Moreover, they must adapt to current demands. They must do so not only by improving the contents of the different degree programs but also by incorporating new programs and activities that help students develop soft skills, teamwork, connections between the ...
Collado López, M. Francisca, Villalonga Grañana, Inmaculada, Giménez Carbó, Esther, Gómez Martín, M. Esther   +3 more
openaire   +1 more source

Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion

Advanced Materials, EarlyView.
This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang, Gonzalo Rivera‐Sierra, Shirin Siahjani‐Gultekin, Jenifer Rubio‐Magnieto, Anis Allagui, Ignacio Sanjuán, David Franco, Antonio Guerrero, Enrique H. Balaguera, Juan Bisquert   +9 more
wiley   +1 more source

A new approach to estimate compressive strength of concrete by the UPV method

Revista IBRACON de Estruturas e Materiais
Although the ultrasonic pulse velocity (UPV) method has been extensively used to estimate concrete compressive strength, the relationship between UPV and concrete strength is mixture dependent.
M. A. P. Irrigaray, R. C. de A. Pinto, I. J. Padaratz   +2 more
doaj   +1 more source