Results 91 to 100 of about 24,612 (214)
Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3077-3094, June 2026.ABSTRACT Purpose We present a method for absolute quantification of deuterated metabolites in vivo at 7T. We describe acquisition protocols and an analysis pipeline compatible with 7T Terra MRIs. We apply them using a 2H/1H receive array in healthy volunteers and glioblastoma patients.
Jabrane Karkouri +12 more
wiley +1 more source
Doppler stretch and delay Cramer-Rao lower bound for signal with large bandwidth
Известия высших учебных заведений России: Радиоэлектроника, 2016 In this paper Cramer-Rao lower bound of joint Doppler stretch and delay estimation for wideband signal is derived. We use wideband term to denote cases in which narrowband signal model is inappropriate.
I. V. Gogolev
doaj
The Cramer-Rao lower bound and its extensions
, 1989 Bibliography: p. 87-91.
openaire +2 more sources
Escort density operators and generalized quantum information measures
, 2004 Parametrized families of density operators are studied. A generalization of the lower bound of Cramer and Rao is formulated. It involves escort density operators. The notion of phi-exponential family is introduced.
Naudts, Jan
core
Lactate Changes Quantified by fMRS: A Meta‐Analysis
NMR in Biomedicine, Volume 39, Issue 6, June 2026.A systematic meta‐analysis of fMRS studies investigating brain lactate in healthy human subjects was conducted, with experiments categorized according to magnetic field strength, spectroscopic echo time, and task design. Across all included studies, lactate concentration was consistently reported to increase during functional stimulation, showing an ...
Luca Cairone +3 more
wiley +1 more source
NMR in Biomedicine, Volume 39, Issue 6, June 2026.Non‐negative matrix factorization (NMF) can derive tissue features in a data‐driven manner without relying on biophysical model assumptions. First‐time application of NMF to 3D multi‐echo UTE knee MRI revealed four reproducible components associated with tissues of fast and slow transverse relaxation, water–fat mixture (chemical shift), and fat tissue.
Céline Smekens +5 more
wiley +1 more source
Modified Cramer-Rao lower bound for symbol width estimation from a phase-shift-keying signal
Tongxin xuebao, 2009 The modified Cramer-Rao lower bound（MCRB） on symbol width estimation of a phase-shift-keying signal was derived.When calculating the integration of the square of dirac delta function δ（t ）, Parseval’s theorem was used to transform the computation from ...
DENG Zhen-miao, LIU Yu
doaj +2 more sources
Optimal sensing on an asymmetric exceptional surface
Physical Review ResearchWe study the connection between exceptional points (EPs) and optimal parameter estimation, in a simple system consisting of two counterpropagating traveling wave modes in a microring resonator.
Robert L. Cook +2 more
doaj +1 more source
Location Awareness in 5G Networks Using RSS Measurements for Public Safety Applications
IEEE Access, 2017 One of the notable aspects of public safety applications in 5G networks is location awareness, which is a feature of contemporary technology that imparts details about a user`s geographical location to another user or application. Mobile users take their
Muhammad Alee Khan +3 more
doaj +1 more source
Joint Covariance Estimation with Mutual Linear Structure
, 2015 We consider the problem of joint estimation of structured covariance matrices. Assuming the structure is unknown, estimation is achieved using heterogeneous training sets.
Soloveychik, Ilya, Wiesel, Ami
core +1 more source