Results 81 to 90 of about 50,281 (233)
Magnetic Resonance in Medicine, EarlyView.Abstract Purpose To develop a B0$$ {B}_0 $$ self‐navigation approach to estimate respiratory motion for motion‐corrected liver T1$$ {T}_1 $$ mapping using a Look‐Locker acquisition with radial stack‐of‐stars trajectory. Methods The proposed method derives 1D field‐map profiles from the oversampled k‐space center to estimate a normalized breathing curve
Jonathan Stelter +5 more
wiley +1 more source
Polarisation variation of linear polarised Bi‐ISAR system in space targets imaging
IET Radar, Sonar & Navigation, 2021 A bistatic inverse synthetic aperture radar (Bi‐ISAR) system is used to observe space targets through different viewing angles via a bistatic radar configuration. It is seen that the receiver of a linear polarised Bi‐ISAR system with a long baseline will
Linsheng Bu, Junling Wang
doaj +1 more source
Bridging the Gap: How Organ‐on‐a‐Chip Technology Facilitates the Battle against Glioma
Small Science, EarlyView.This review critically evaluates current state‐of‐the‐art in vitro glioma models especially glioma‐on‐a‐chip models based on readout capability, performance, and physiological relevance. It summarizes the key parameters and proposes a practical framework to guide researchers in selecting the most suitable preclinical models for glioma studies.
Su Liu +5 more
wiley +1 more source
Bistatic ISAR Sparse Imaging Method for High-Speed Moving Target Based on Dechirping Processing
International Journal of Antennas and Propagation, 2019 Bistatic inverse synthetic aperture radar (ISAR) can increase the probability of tracking the high-speed target and provide more angle information than monostatic ISAR.
Chuangzhan Zeng, Weigang Zhu, Xin Jia
doaj +1 more source
Moving Target Analysis in ISAR Image Sequences with a Multiframe Marked Point Process Model [PDF]
, 2014 In this paper we propose a Multiframe Marked Point Process model of line segments and point groups for automatic target structure extraction and tracking in Inverse Synthetic Aperture Radar (ISAR) image sequences.
Benedek, Csaba, Martorella, M
core +1 more source
Remote SensingExisting methods for inverse synthetic aperture radar (ISAR) target recognition typically rely on a single high-resolution radar signal type, such as ISAR images or high-resolution range profiles (HRRPs).
Jie Deng, Fulin Su
doaj +1 more source
Categorical structures enriched in a quantaloid: categories, distributors and functors [PDF]
arXiv, 2004 We thoroughly treat several familiar and less familiar definitions and results concerning categories, functors and distributors enriched in a base quantaloid Q. In analogy with V-category theory we discuss such things as adjoint functors, (pointwise) left Kan extensions, weighted (co)limits, presheaves and free (co)completion, Cauchy completion and ...
arxiv
Grothendieck quantaloids for allegories of enriched categories [PDF]
, 2011 For any small involutive quantaloid Q we define, in terms of symmetric quantaloid-enriched categories, an involutive quantaloid Rel(Q) of Q-sheaves and relations, and a category Sh(Q) of Q-sheaves and functions; the latter is equivalent to the category ...
Heymans, Hans, Stubbe, Isar
core
An inventory of subglacial overdeepenings in southern Germany and Austria
Boreas, EarlyView.We present an inventory and morphometric characterization of >100 individual overdeepened basins in southern Germany and Austria compiled from heterogeneous sources. Arrangement and dimensions of overdeepenings are compared to those of their western Alpine counterparts, to catchment topographies and bedrock lithologies, and to modelled ice‐flow ...
Lukas Gegg +5 more
wiley +1 more source