Results 91 to 100 of about 1,545,533 (279)

THE EFFECT OF VARIATION CONCRETE CUBE OF AXIAL LOAD ON ULTRASONIC PULSE VELOCITY TRANSMITTER

open access: yesJournal of the Civil Engineering Forum, 2015
Nowadays, Non Destructive Tests have been applied in some quality evaluation of existing concretes on site. One of the Non Destructive Test (NDT) methods is the application of the Ultrasonic Pulse Velocity (UPV) method. In general, utilizations of UPV as
Faqih Ma’arif   +2 more
doaj   +1 more source

Ultrasonic Pulse Velocity Evaluation of Cementitious Materials

open access: yes, 2011
T. H. Panzera1, A. L. Christoforo1, F. P. Cota1, P. H. R. Borges2 and C. R. Bowen3 1Department of Mechanical Engineering, Federal University of Sao Joao del Rei UFSJ, Praca Frei Orlando, 170 Sao Joao Del Rei – MG, 2Department of Civil Engineering, Federal Centre for Technological Education of Minas Gerais, CEFET-MG, 3Materials Research Centre ...
Tulio H. Panzera   +4 more
openaire   +2 more sources

Soft and Transient Bioelectronics Enabled by Polymer‐Free Ti3C2Tx MXene Hydrogels

open access: yesAdvanced Materials, EarlyView.
We present Ti3C2Tx MXene hydrogel (MXgel) bioelectronics, a soft, flexible, and fully transient platform for high‐fidelity neural recording and stimulation. MXgel bioelectronics exhibit exceptional electrical conductivities, low electrochemical impedances, and high charge injection capacities.
Raghav Garg   +15 more
wiley   +1 more source

Biohybrid Crawling Robot With Spiral‐Spring Backbone and Inclined Legs for Enhanced Locomotion

open access: yesAdvanced Materials, EarlyView.
We present a biohybrid crawling robot integrating a muscle ring with a flexible skeleton combining two complementary structural elements. The spiral‐spring backbone enables large‐amplitude bending without compromising axial stability, while outward‐inclined legs with unequal front–rear lengths effectively convert deformation into directional strides ...
Tomohiro Morita   +2 more
wiley   +1 more source

Upscaling Pulsed Laser Fragmentation in Liquids by Advanced Free‐Flow Setups

open access: yesAdvanced Materials Technologies, EarlyView.
Advanced flow setups providing thin colloid films are introduced to upscale pulsed laser fragmentation in liquids for sustainable nanoparticle synthesis. Their potential is demonstrated by yielding remarkably small ZnO nanoparticles of <7 nm. Numerical simulations complement the study, revealing that the superior performance can be attributed to ...
Jan Lino Kricke   +5 more
wiley   +1 more source

Pengaruh Variasi Umur Beton Terhadap Cepat Rambat Gelombang Dengan Menggunakan Metode Non Destructive Test

open access: yesRekayasa Sipil, 2019
Field testing is divided into 2 tests i.e. by destroying test structures or destructive tests and without destroying the structure or called a non-destructive test (NDT) One of them using the ultrasonic pulse rate (UPV).
Alif Iqbal Nur Hidayat   +2 more
doaj   +1 more source

Programming Actuation in 3D‐Printed Micro‐Architectures via Interfacial Adhesion Control

open access: yesAdvanced Materials Technologies, EarlyView.
A two‐phase meniscus‐guided 3D printing method directly fabricates microscale poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and poly(vinyl alcohol) (PVA) bilayers with in situ programmable interfaces. Modulating the meniscus stretching speed switches the interface between separated and bonded states, which controls the mechanical ...
Xiao Huan   +13 more
wiley   +1 more source

Investigation of ultrasonic properties of MAGIC gels for pulse-echo gel dosimetry

open access: yes, 2014
This thesis describes investigations into the design and evaluation of novel ultrasonic methods for 3-dimensional ionising radiation dose verification. Pulse-echo ultrasound methods were investigated for the measurement and analysis of complex radiation ...
Atkins, Timothy John
core   +1 more source

Determination of the apparent porosity level of refractory concrete during a sintering process using an ultrasonic pulse velocity technique and image analysis [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2010
Concrete which undergoes a thermal treatment before (pre-casted concrete blocks) and during (concrete embedded in-situ) its life-service can be applied in plants operating at high temperature and as thermal insulation. Sintering is a process which occurs
LJUBICA M. PAVLOVIĆ, ANJA M. TERZIĆ
doaj  

Modelling and evaluation of pulsed and pulse phase thermography through application of composite and metallic case studies [PDF]

open access: yes, 2014
A transient thermal finite element model has been created of the pulsed thermography (PT) and pulse phase thermography (PPT) experimental procedure.
Waugh, R., Quinn, S., Barton, J.M.
core   +1 more source

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