Results 91 to 100 of about 206,373 (329)

msQSM: Morphology-based self-supervised deep learning for quantitative susceptibility mapping

NeuroImage, 2023
Quantitative susceptibility mapping (QSM) has been applied to the measurement of iron deposition and the auxiliary diagnosis of neurodegenerative disease. There still exists a dipole inversion problem in QSM reconstruction.
Junjie He, Yunsong Peng, Bangkang Fu, Yuemin Zhu, Lihui Wang, Rongpin Wang   +5 more
doaj  

Polarization of the Effects of Autoimmune and Neurodegenerative Risk Alleles in Leukocytes [PDF]

, 2013
To extend our understanding of the genetic basis of human immune function and dysfunction, we performed an expression quantitative trait locus (eQTL) study of purified CD4[superscript +] T cells and monocytes, representing adaptive and innate immunity ...
Asinovski, N., Benoist, C., Davis, S., De Jager, P. L., Feng, T., Frohlich, I., Hacohen, N., Hafler, D. A., Imboywa, S., Koller, D., Lee, M., Lee, M. N., Mathis, D., McCabe, C., Mostafavi, S., Okada, Y., Paik, H.-i., Patsopoulos, N. A., Raj, T., Raychaudhuri, S., Regev, Aviv, Replogle, J. M., Rothamel, K., Srivastava, G. P., Stranger, B. E., Von Korff, A., Ye, C.   +26 more
core   +1 more source

Development of Ternary Magnesium Alloys for Laser Powder Bed Fusion: Optimizing Oxide Layer Thickness

Advanced Engineering Materials, EarlyView.
Additive manufacturing of magnesium alloys by laser is difficult because the melting point of the oxide layer is much higher than the evaporation temperature of the metal underneath. Making the oxide layer thinner can solve this problem. Alloying magnesium with strontium makes the oxide layer thinner, especially at 0.5 wt%.
Elmar Jonas Breitbach, Stefan Julmi, Sabine Behrens, Tatiana Blank, Arvid Abel, Nicole Emminghaus, Ludger Overmeyer, Christian Klose, Hans Jürgen Maier   +8 more
wiley   +1 more source

Hemosiderin quantification in hemophilic arthropathy using quantitative magnetic resonance imaging

Scientific Reports
The goal of this study is to quantify hemosiderin deposition in the knee joint tissues of hemophilic arthropathy (HA) patients using quantitative susceptibility mapping on MRI.
Sam Sedaghat, Jame V. Luck, Annette von Drygalski, Eddie Fu, Jin Il Park, Kim Gina Gehling, Yajun Ma, Scott Ball, Eric Y. Chang, Jiang Du, Hyungseok Jang   +10 more
doaj   +1 more source

Biophysically motivated efficient estimation of the spatially isotropic R*2 component from a single gradient‐recalled echo measurement [PDF]

, 2019
Purpose To propose and validate an efficient method, based on a biophysically motivated signal model, for removing the orientation‐dependent part of R*2 using a single gradient‐recalled echo (GRE) measurement.
Ashtarayeh, M., Brammerloh, M., Callaghan, M., Edwards, L., Geyer, S., Jäger, C., Kirilina, E., Mohammadi, S., Morawski, M., Papazoglou, S., Pine, K., Streubel, T., Weiskopf, N.   +12 more
core   +3 more sources

Impact of Iron Contamination on Liquid Properties and Microstructural Evolution in AlSi20

Advanced Engineering Materials, EarlyView.
Recycled aluminum is much more energy conservative and sustainable than primary aluminum. However, the iron contamination in secondary aluminum is vastly responsible for the degradation of the material properties. Herein, it is aimed to evaluate the influence of iron contamination in hypereutectic Al–Si alloy through thermodynamic as well as ...
Layla Shams Tisha, Anastasiya Toenjes, Nils Ellendt   +2 more
wiley   +1 more source

Identification of markers associated with bacterial blight resistance loci in cowpea (Vigna unguiculata (L.) Walp.) [PDF]

, 2010
Cowpea bacterial blight (CoBB), caused by Xanthomonas axonopodis pv. vignicola (Xav), is a worldwide major disease of cowpea [Vigna unguiculata (L.) Walp.].
Agbicodo, A.C.M.E., Bandyopadhyay, R., Close, T.J., Diop, N.N., Ehlers, J.D., Fatokun, C.A., Linden, C.G., van der, Muchero, W., Roberts, P.A., Visser, R.G.F., Wydra, K.   +10 more
core   +2 more sources

A robust multi-scale approach to quantitative susceptibility mapping

NeuroImage, 2018
Quantitative Susceptibility Mapping (QSM), best known as a surrogate for tissue iron content, is becoming a highly relevant MRI contrast for monitoring cellular and vascular status in aging, addiction, traumatic brain injury and, in general, a wide range of neurological disorders. In this study we present a new Bayesian QSM algorithm, named Multi-Scale
Martina F. Callaghan, Carlos Milovic, Hendrik Mattern, Cristian Tejos, Julio Acosta-Cabronero, Julio Acosta-Cabronero, Oliver Speck   +6 more
openaire   +5 more sources

A Perspective on Powder Metallurgy and Additive Manufacturing of High‐Nitrogen Alloyed Stainless Steels

Advanced Engineering Materials, EarlyView.
This perspective article explores an innovative powder metallurgical approach to producing high‐nitrogen steels by utilizing a mixture of stainless steel and Si3N4. This mixture undergoes hot isostatic pressing followed by direct quenching. The article also examines adapting this method to laser powder bed fusion (PBF‐LB/M) to overcome nitrogen ...
Louis Becker, Felix Radtke, Jonathan Lentz, Simone Herzog, Christoph Broeckmann, Sebastian Weber   +5 more
wiley   +1 more source

A Novel Approach on Rapid Alloy Development of Tool Steels for Laser Powder Bed Fusion by In Situ Alloying

Advanced Engineering Materials, EarlyView.
A novel approach for alloy development in laser powder bed fusion is introduced. Instead of producing massive samples of one composition at a time, prepressed powder bed samples produced from powder mixtures are processed. Guidelines for the selection of precursor powders are developed.
Felix Großwendt, Anna Strauch, Jonathan Lentz, Arne Röttger, Rainer Fechte‐Heinen, Sebastian Weber, Werner Theisen   +6 more
wiley   +1 more source