Results 71 to 80 of about 50,281 (233)

Meniscal forces and knee kinematics are affected by tibial slope modifying high tibial osteotomy

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To quantify the effect of increasing the posterior tibial slope (PTS) on knee kinematics and the resultant medial and lateral meniscal forces. Methods In this controlled laboratory study, a 6 degrees of freedom (DOF) robotic testing system was used to apply external loading conditions to seven fresh‐frozen human cadaveric knees: (1 ...
Philipp W. Winkler   +7 more
wiley   +1 more source

Routine‐data‐compatible quality indicators for the ambulatory care of osteoarthritis of the knee and hip: A systematic review

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Germany has high rates of total joint arthroplasty for osteoarthritis of the knee and hip. Ambulatory health interventions can affect the progression of these conditions and the need for total joint arthroplasty. Quality indicators and guideline recommendations facilitate the transparent measurement and demonstration of care quality ...
Tobias Bock   +5 more
wiley   +1 more source

A Self-Supervised Feature Point Detection Method for ISAR Images of Space Targets

open access: yesRemote Sensing
Feature point detection in inverse synthetic aperture radar (ISAR) images of space targets is the foundation for tasks such as analyzing space target motion intent and predicting on-orbit status. Traditional feature point detection methods perform poorly
Shengteng Jiang   +4 more
doaj   +1 more source

RBM-based joint dictionary learning for ISAR resolution enhancement

open access: yesThe Journal of Engineering, 2019
In this study, an inverse synthetic aperture radar (ISAR) image resolution enhancement algorithm based on joint dictionary learning is proposed, by which two special sets of sparse signals called dictionaries are solved by exploiting numerous high ...
Jiaqi Ye   +3 more
doaj   +1 more source

Age is not a primary risk factor for ACL injury—A comprehensive review of ACL injury and reinjury risk factors confounded by young patient age

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Revision surgery after anterior cruciate ligament reconstruction (ACL‐R) is hypothesized to be the result of an interplay between factors associated with the anatomy, physiological characteristics and environment of the patient. The multifactorial nature of revision ACL‐R risk is difficult to quantify, and evidence regarding the independent ...
Bálint Zsidai   +10 more
wiley   +1 more source

Multiple Heterogeneous P-DCNNs Ensemble With Stacking Algorithm: A Novel Recognition Method of Space Target ISAR Images Under the Condition of Small Sample Set

open access: yesIEEE Access, 2020
In this paper, a novel method of multiple heterogeneous pre-trained deep convolutional neural network models (P-DCNN) ensemble with stacking algorithm is proposed, which can realize automatic recognition of space targets in inverse synthetic aperture ...
Hong Yang, Yasheng Zhang, Wenzhe Ding
doaj   +1 more source

ISAR Image Formation Using Sequential Minimization of L0 and L2 Norms [PDF]

open access: yesarXiv, 2012
A sparsity-driven algorithm of inverse synthetic aperture radar (ISAR) imaging is proposed. Based on the parametric sparse representation of the received ISAR signal, the problem of ISAR image formation is converted into the joint estimation of the target rotation rate and the sparse power distribution in the spatial domain.
arxiv  

3D virtual biopsy of in vivo pH and metabolism using PRESS and semi‐LASER MRS of hyperpolarized 13C nuclei

open access: yesMagnetic Resonance in Medicine, EarlyView.
Abstract Purpose To develop and evaluate sequences for multi‐voxel magnetic resonance spectroscopy using hyperpolarized molecules. Methods A standard single voxel PRESS sequence was extended to acquire multiple voxels consecutively. Its SNR was compared against a 2D FID‐CSI with both 1H and hyperpolarized 13C nuclei in phantoms and in a healthy mouse ...
Wolfgang Gottwald   +11 more
wiley   +1 more source

Inverse Synthetic Aperture Radar Image Multi-Modal Zero-Shot Learning Based on the Scattering Center Model and Neighbor-Adapted Locally Linear Embedding

open access: yesRemote Sensing
Inverse Synthetic Aperture Radar (ISAR) images are extensively used in Radar Automatic Target Recognition (RATR) for non-cooperative targets. However, acquiring training samples for all target categories is challenging. Recognizing target classes without
Xinfei Jin   +4 more
doaj   +1 more source

International severe asthma registry (ISAR): protocol for a global registry

open access: yesBMC Medical Research Methodology, 2020
Background Severe asthma exerts a disproportionately heavy burden on patients and health care. Due to the heterogeneity of the severe asthma population, many patients need to be evaluated to understand the clinical features and outcomes of severe asthma ...
J. Mark FitzGerald   +47 more
doaj   +1 more source

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