Results 41 to 50 of about 12,151 (297)

NMR studies of fluoropolymers and of polyaniline [PDF]

open access: yes, 1998
This thesis presents a study of two polymers, poly(trifluoroethylene) (PTrFE) and polyaniline (PANi), by means of Nuclear Magnetic Resonance Spectroscopy (NMR).The first part of the thesis focusses on investigations in connection with the fluoro polymer.
Reinsberg, Stefan A.
core  

Nondestructive Testing of Welded Composite Metal Foams

open access: yesAdvanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva   +2 more
wiley   +1 more source

Preliminary CFD and EM analysis of the ECRH equatorial launcher port plug prototype towards the CFETR

open access: yesNuclear Materials and Energy, 2023
The CFETR is the next generation magnetic confinement tokamak, its increasing heating needs and stringent shielding requirements present new challenges for the ECRH launcher.
Dingzhen Li   +8 more
doaj   +1 more source

A 50 kW Liquid-Lithium Target for BNCT and Material-Science Applications [PDF]

open access: yesEPJ Web of Conferences, 2020
A compact Liquid Lithium Target (LiLiT) has been operating at SARAF for several years with beam power of several kW (1.9-2.5 MeV, up to 2 mA). When bombarding the lithium with low energy protons neutrons are generated. The neutron source, mainly used for
Paul Michael   +10 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

A Surface‐engineered Microfluidic Device for Antibody‐Mediated Negative Selection of High‐Quality Sperm for Assisted Reproduction

open access: yesAdvanced Functional Materials, EarlyView.
This study reports a microfluidic device with a functionalized surface utilizing a polyoxazoline coating and covalently immobilized gold nanoparticles and anti‐phosphatidylserine antibody. The device efficiently eliminates pre‐apoptotic and apoptotic spermatozoa and yields sperm with substantially improved quality and low DNA damage, offering a simple ...
Soraya Rasi Ghaemi   +5 more
wiley   +1 more source

Segmented Contracted Basis Sets Optimized for Nuclear Magnetic Shielding

open access: yes, 2016
A family of segmented contracted basis sets is proposed, denoted pcSseg-n, which are optimized for calculating nuclear magnetic shielding constants. For the elements H–Ar, these are computationally more efficient than the previously proposed general ...
Frank Jensen (1287894)
core   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

open access: yesAdvanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim   +6 more
wiley   +1 more source

Status of Scoping Nuclear Analyses for the Evolving Design of ITER TBM Port Cells

open access: yesJournal of Nuclear Engineering, 2022
ITER is an international collaborative effort towards the realization of fusion energy via the magnetic confinement concept. Two of the equatorial ports in the facility are dedicated to the testing of tritium breeding concepts, which is essential for the
Moataz Harb   +6 more
doaj   +1 more source

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