Results 141 to 150 of about 15,311 (291)
Isometries on the vector valued little bloch space
, 2014 In this paper, we describe the surjective linear isometries on a vector valued little Bloch space with range space a smooth, strictly convex and reflexive complex Banach space.
Botelho, Fernanda, Jamison, James
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A Modified Balanced Steady State Free Precession Sequence for Overhauser Magnetic Resonance Imaging
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Low‐ and ultralow‐field magnetic resonance imaging (ULF MRI) have inherently low signal‐to‐noise ratio (SNR) by design. Overhauser dynamic nuclear polarization (ODNP) stands out as an effective solution for continuous signal enhancement.
Kai Buckenmaier +9 more
wiley +1 more source
The Bergman space, the Bloch space, and commutators of multiplication operators
Duke Mathematical Journal, 1986 Let \(L^ 2_ a\) denote the Bergman space of functions analytic in the unit disc \({\mathbb{D}}\) and square summable with respect to the area measure. For \(f\in L^{\infty}({\mathbb{D}})\) the Hankel operator \(H_ f\) on \(L^ 2_ a\) is defined by \[ (1)\quad H_ f(g)=(I-{\mathbb{P}})(fg), \] where \({\mathbb{P}}\) is the orthogonal projection from \(L ...
openaire +2 more sources
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Aims Purpose: Dictionary matching is a standard tool in quantitative MRI (qMRI), but typically lacks uncertainty quantification (UQ). This is critical when advanced reconstructions (e.g., compressed sensing, deep learning) introduce complex‐valued, spatially varying, and temporally correlated noise that violates standard assumptions of ...
Brian Toner +7 more
wiley +1 more source
Non-Bloch theory for spatiotemporal photonic crystals assisted by continuum effective medium
Physical Review ResearchAs one indispensable type of nonreciprocal mechanism, a system with temporal modulations is intrinsically open in the physical sense and inevitably non-Hermitian, but the space and time degrees of freedom are nonseparable in a large variety of ...
Haozhi Ding, Kun Ding
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La soirée parisienne (21 janvier 1892)
, 1892 Transcript of LA SOIRÉE PARISIENNE by Ferdinand Bloch, appearing in GIL BLAS, 21 janvier ...
Bloch, Ferdinand
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Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Magnetic resonance spectroscopy techniques are widely used to non‐invasively study brain metabolism. Despite advances in magnetic resonance spectroscopic imaging (MRSI), there is a notable absence of research on comparing fast non‐Cartesian MRSI with single‐voxel spectroscopy (SVS), limiting our understanding of its performance and ...
Young Woo Park +3 more
wiley +1 more source
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To evaluate the feasibility of High‐Temporal‐Resolution (HTR) Ultrafast Z‐spectrum (UFZ) CEST MRI for monitoring the dynamic fluctuations of phosphocreatine (PCr) and creatine (Cr) in human skeletal muscle (SM) at 3 T during and after exercise.
Licheng Ju +6 more
wiley +1 more source
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To demonstrate the synergy of undersampled radial 2in1‐RARE‐EPI acquisition and nonlinear model‐based reconstruction for accelerated and simultaneous T2, T2*, and R2′ mapping in brains of patients with multiple sclerosis (MS). Methods 2in1‐RARE‐EPI combines a RARE module with an EPI module to capture T2 and T2* information.
Jose Raul Velasquez Vides +16 more
wiley +1 more source
View Order With Arbitrary Center Echoes
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To provide explicit, vendor‐independent view‐order constructions that enable selection of an arbitrary center echo in multi‐shot imaging, with a focus on RARE and MPRAGE. Methods Vendor‐independent view‐order methods were developed to assign echo and shot indices to a prescribed set of phase encodes, enabling explicit selection of the ...
Henric Rydén +4 more
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