Results 221 to 230 of about 776,248 (299)

Galaxy Evolution with Manifold Learning. [PDF]

Entropy (Basel)
Takeuchi TT, Cooray S, Kano RR.
europepmc   +1 more source

Human In Vivo Validation of Frequency‐Dependent QTI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The aim of this work is to investigate if q‐space trajectory imaging (QTI) waveforms can be designed to probe QTI metrics at a single centroid frequency under realistic experimental conditions for in vivo human brain imaging. Methods Realistic diffusion encoding waveforms based on double‐rotation gradient waveform and magic‐angle ...
Svenja Niesen, Marten Veldmann, Ali Ajouz, Tony Stöcker   +3 more
wiley   +1 more source

Simultaneous Mars-orbit observations reveal Kelvin-Helmholtz instability-driven bulk atmospheric ion escape. [PDF]

Sci Adv
Zhang C, Dong C, Poh G, Halekas J, Ma X, Suranga R, Hanley KG, Shen HW, Zhou H, Li X, Wang L, Gao J, Curry S, Mazelle C.   +13 more
europepmc   +1 more source

Deep Learning Improves Robustness of Voxelwise Kinetic Modeling for Hyperpolarized Carbon‐13 MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To evaluate whether deep learning improves the robustness of voxelwise kinetic parameter estimation from hyperpolarized (HP) 13C MRI compared with nonlinear least‐squares (NLLS) fitting. Methods A hybrid neural network (NN) was trained on synthetic pyruvate/lactate time courses generated from an open‐system two‐compartment HP 13C ...
Kofi Deh, Yeona Kang, Tsang‐Wei Tu, Rania Jones, Curtiland Deville, Rao Khan   +5 more
wiley   +1 more source

Precise orbital parameters,masses, and parallax of the subgiant binary system 12 Persei: a combined spectroscopic-interferometric analysis. [PDF]

Sci Rep
Abushattal AA, Widyan H, Dirk M, Al-Wardat MA, Al-Mashaqbeh M, Mendez RA, Dewi DA, Hussein AM, Abu-Alrob EM.   +8 more
europepmc   +1 more source

Evaluation of 7 Tesla pTx Body Coils Regarding Transmit and Receive Performance

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Most sites develop and use custom coils for 7 T body MRI since no standard pTx body coil exists, leading to diverse coil designs differing in transmit element type, layout, and number of receive channels. This study investigates and compares eight existing coils, including one remote body coil array and seven local arrays, regarding ...
Johannes A. Grimm, Oliver Kraff, Markus W. May, Max Lutz, Stephan Orzada, Thomas M. Fiedler, Steen Moeller, Simon Schmidt, Harald H. Quick, Armin M. Nagel, Mark E. Ladd, Sebastian Schmitter   +11 more
wiley   +1 more source

Discovery of a star sensitive to the spin of Sagittarius A. [PDF]

Nature
Abd El Dayem K, Abuter R, Aimar N, Amaro-Seoane P, Berdeu A, Berger JP, Bourdarot G, Brandner W, Burkert A, Caldéron D, Correia C, Cuadra J, Davies R, Defrère D, Delit L, Drescher A, Eisenhauer F, Esteras Otal L, Fabricius M, Feuchtgruber H, Flesch S, Förster Schreiber NM, Foschi A, Fournier Q, Garcia P, Garcia Lopez R, Generozov A, Genzel R, Gillessen S, Gonté F, Haubois X, Hönig SF, Houllé M, Joharle S, Kaufer A, Kammerer J, Kervella P, Kolb J, Kreidberg L, Labadie L, Lacour S, Lai O, Laugier R, Le Bouquin JB, Leftley J, Li R, Lopez B, Lutz D, Mang F, Mérand A, Millour F, Montargès M, Morujão N, Nowacki H, Nowak M, Oberti S, Osorno J, Ott T, Paumard T, Paladini C, Pappert S, Perets HB, Perraut K, Perrin G, Petrov R, Petrucci PO, Piran T, Pourré N, Rabien S, Ribeiro DC, Robbe-Dubois S, Sadun Bordoni M, Sanchez-Bermudez J, Santos D, Sari R, Sauter J, Scheithauer S, Scigliuto J, Shangguan J, Shimizu TT, Soulez F, Stadler J, Straubmeier C, Sturm E, Subroweit M, Sykes C, Tacconi LJ, Thévenet P, Urso I, Vincent F, Woillez J, Zins G, GRAVITY+ Collaboration.   +92 more
europepmc   +1 more source

Ultimate Intrinsic SNR Depends on B0 Orientation

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This work aims to investigate the effect of B0$$ {B}_0 $$ orientation on the uiSNR in MRI. Methods Electromagnetic simulations were performed on both realistic body models and simplified geometric models. Comparisons between (1) opposite B0$$ {B}_0 $$ directions along the head‐foot (HF) axis, corresponding to head‐first and feet‐first ...
Yuting Wang, Markus W. May, Marcel Gratz, Mark E. Ladd, Stephan Orzada   +4 more
wiley   +1 more source

StarWhisper Telescope: an AI framework for automating end-to-end astronomical observations. [PDF]

Commun Eng
Wang C, Zhang Y, Li Y, Hu X, Mao Y, Chen X, Du P, Wang R, Wu Y, Yang H, Li Y, Wang B, Mu H, Chen X, He S, Mo H, Zhang L, Du L, Zhao Y, Tian J, Ge L, Mao Y, Li S, Wang Z, Lu X, Zou J, Huang Y, Sun N, Zheng J, He M, Bai Y, Jin J, Wu H, Liu J.   +33 more
europepmc   +1 more source

Design of an In Vivo‐Like Phantom for Quantitative Body CEST MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To design and validate a reproducible in vivo‐like fat‐containing CEST phantom that enables robust quantitative CEST MRI for body applications by providing physiologically realistic relaxation properties, relevant endogenous CEST contrasts (amide, guanidino, rNOE, and semi‐solid MT), and a controlled fat component.
Petr Menshchikov, Petr Bulanov, Neele Kempa, Mark E. Ladd, Andreas Korzowski, Philip S. Boyd   +5 more
wiley   +1 more source