Results 101 to 110 of about 13,871 (285)

Polymerized Pro‐Estrogen Microneedles via Two Photon Polymerization

Macromolecular Rapid Communications, EarlyView.
Acrylic pro‐drugs of 17β‐estradiol were subjected to spatially controlled two‐photon polymerization to create bespoke microneedle geometries with potential biomedical applications for long‐term transdermal hormone delivery. ABSTRACT Two‐photon polymerization (TPP) is a powerful technique to create microscale structures with high precision, offering ...
Yang Lou, John T. Leman, Harper Serringer, Ke Xia, Christopher N. LaFratta, Chaitanya Ullal, Edmund F. Palermo   +6 more
wiley   +1 more source

Improvement of Defect Feature Extraction in Eddy Current Pulsed Thermography

IEEE Access, 2019
Defect inspection based on eddy current pulsed thermography (ECPT) technique is a research focus in non-destructive testing (NDT) area. In this paper, a novel defect feature extraction approach for automated defect analyzing based on ECPT has been ...
Peipei Zhu, Lulu Tian, Yuhua Cheng
doaj   +1 more source

A Stopped‐Flow Instrument for Millisecond Timescale Reaction Monitoring on a Standard NMR Spectrometer

Magnetic Resonance in Chemistry, EarlyView.
A new stopped‐flow instrument allows kinetic measurements of reactions 10 milliseconds after initiating them by mixing in a flow cell inserted into a standard NMR probe and spectrometer. High‐speed video, pressure and NMR line‐shape data are used to characterise mixing and stopping, and a protodeboronation reaction with a 5‐millisecond half‐life used ...
Andrew M. R. Hall, Edward J. King, Lloyd A. L. Mitchell, George A. Steedman, Stuart Johnstone, Clark Landis, Guy C. Lloyd‐Jones   +6 more
wiley   +1 more source

Quantitative Diffusion and T2 Mapping Using RF‐Modulated Phase‐Based Gradient Echo Imaging

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To introduce and evaluate the feasibility of a novel RF‐phase modulated gradient echo (GRE) method for quantitative diffusion MRI, aimed at mitigating geometric distortion and enabling high‐resolution 3D quantitative diffusion/T2 mapping as a complementary alternative to conventional DWI.
Daiki Tamada, Ali Pirasteh, David F. Jarrard, Diego Hernando, Scott B. Reeder   +4 more
wiley   +1 more source

A PEC Thrice Subtraction Method for Obtaining Permeability Invariance Feature in Conductivity Measurement of Ferromagnetic Samples

Applied Sciences, 2019
Conductivity, as an important index of structural health monitoring, can be used to evaluate heat treatment condition, and sort different materials or measure the stress of mechanical parts.
Dongdong Wen, Mengbao Fan, Binghua Cao, Zhian Xue, Ping Wang   +4 more
doaj   +1 more source

Identification of corrosion fringe in pulsed eddy current nondestructive testing

Chinese Journal of Mechanical Engineering, 2008
It is difficult to accurately identify corrosion fringe in nondestructive testing (NDT),which will directly influence the effect of corrosion imaging.Array pulsed eddy current (APEC) is used to detect corrosion.With the purpose of overcoming the problem of low identification accuracy in conventional NDT which only extracts features in the time domain ...
openaire   +1 more source

Convective, Diffusive Effects on Magnetic Fields and Eddy Current in Compulsators [PDF]

Compulsators are being designed at ever increasing energies and energy densities and are required to deliver energy to the load in less than 10 ms. These require high speeds of operation and dense spacing of conductors.
Min Chan, W., Ozdemir, M., Thiagarajan, V.   +2 more
core  

Fat/Water Separation at 7 T Using a 3D Radial Sequence With Quasi‐Continuous Echo Times

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To achieve a reliable fat/water separation (FWS) at 7 T using a new 3D radial sequence and reconstruction workflow with quasi‐continuous TE sampling. Methods A 3D radial density‐adapted sequence with quasi‐continuous TE sampling was developed for a 7 T whole‐body MRI system.
Matthias Rohe, Katharina Tkotz, Armin M. Nagel, Stefan Sommer, Max Brockmüller, Florian Knoll, Michael Uder, Nico Egger, Frederik B. Laun, Tobias Wilferth   +9 more
wiley   +1 more source

A Numerical Alternative to MR Thermometry for Safety Validation of Multi‐Channel RF Transmit Coils

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study proposes a numerical technique to estimate peak local specific absorption rate (SAR) uncertainty of multi‐channel RF coils during the process of safety validation as an alternative to experimental temperature and electric‐field measurements, and demonstrates its use to enable human studies at 10.5 T.
Alireza Sadeghi‐Tarakameh, Simon Schmidt, Matt Waks, Russell L. Lagore, Andrea Grant, Edward Auerbach, Lance DelaBarre, Lasse Knudsen, Christophe Lenglet, Luca Vizioli, Essa Yacoub, Gregor Adriany, Gregory J. Metzger, Kamil Ugurbil, Yigitcan Eryaman   +14 more
wiley   +1 more source

NDE: An effective approach to improved reliability and safety. A technology survey [PDF]

Technical abstracts are presented for about 100 significant documents relating to nondestructive testing of aircraft structures or related structural testing and the reliability of the more commonly used evaluation methods.
Carpenter, J. L., Jr., Stuhrke, W. F.
core   +1 more source