Results 51 to 60 of about 28,863 (210)

Continuity Pattern Structure of Target Scene in Support of Multiple-Channel ISAR Imagery

IEEE Access, 2019
This paper presents a multiple-channel ISAR system for multiple air-targets imaging by illuminating a sequence of N narrow and high-gain signal beams over a wide area.
Jingjing Wang, Meiru Liu, Hang Zhang, Shengliang Han, Liren Zhang   +4 more
doaj   +1 more source

Inferior clinical outcomes and higher subjective treatment failure after revision compared to primary posterior cruciate ligament reconstruction: A propensity score‐matched analysis

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To compare subscales of the Knee injury and Osteoarthritis Outcome Score (KOOS), concomitant injuries and failure rates between patients undergoing primary and revision posterior cruciate ligament reconstruction (PCLR). Methods This study was based on three major Scandinavian knee ligament registries (Sweden, Norway, Denmark). Patients
Philipp Wilhelm Winkler, Bálint Zsidai, Eric Narup, Armin Runer, Martin Lind, Gilbert Moatshe, Eric Hamrin Senorski, Volker Musahl, Kristian Samuelsson   +8 more
wiley   +1 more source

Allograft use and fixed suspensory fixation increase revision risk in multiple revision anterior cruciate ligament reconstruction: A Swedish knee ligament registry study

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose The purpose of this study was to assess the association between surgical‐related variables, revision‐free survival and knee injury and osteoarthritis outcome score (KOOS) following multiple revision anterior cruciate ligament reconstruction (mrACLR) using data from a national knee ligament registry.
Felix Conrad Oettl, Eric Hamrin Senorski, James Pruneski, Bálint Zsidai, Armin Runer, Volker Musahl, Kristian Samuelsson, Riccardo Cristiani   +7 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

Remote 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, Hongxu Li, Xinbo Xu, Zihan Xu, Fulin Su   +4 more
doaj   +1 more source

Echo Preprocessing to Enhance SNR for 2D CS-Based ISAR Imaging Method

Sensors, 2018
A new CS-based inverse synthetic aperture radar (ISAR) imaging framework is proposed to enhance both the image performance and the robustness at a low SNR. An ISAR echo preprocessing method for enhancing the ISAR imaging quality of compressed sensing (CS)
Zhiping Yin, Xinfei Lu, Weidong Chen
doaj   +1 more source

Reduced length of stay and improved perioperative outcomes in robotic‐arm‐assisted TKA: A real‐world evidence study of 63,931 cases from German hospitals

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Robotic‐arm‐assisted surgery is increasingly used in orthopaedics due to its potential clinical benefits. This real‐world data analysis evaluated the impact of image‐based, robotic‐arm‐assisted total knee arthroplasty (raTKA) over non‐robotic‐arm‐assisted total knee arthroplasty (nraTKA) on perioperative outcomes in Germany based on a ...
Lars‐Rene Tuecking, Marco Ezechieli, Christoph Barkhausen, Christian Hendrich, Lea Charlotte Wienholt, Christoph Pross, Rüdiger von Eisenhart‐Rothe, Henning Windhagen   +7 more
wiley   +1 more source

SDRnet: A Deep Fusion Network for ISAR Ship Target Recognition Based on Feature Separation and Weighted Decision

Remote Sensing
Existing 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

Current concepts in isolated and combined injuries of the medial collateral ligament complex—Part I: Anatomy, biomechanics, clinical and radiological examination of the medial collateral ligament of the knee

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Injuries involving the medial collateral ligament (MCL), or combined injuries to both the anterior cruciate ligament (ACL) and MCL, are common and present considerable diagnostic and therapeutic challenges. Better understanding of MCL anatomy and biomechanics, especially in combined ACL–MCL injuries, has driven the need for updated clinical ...
Armin Runer, Andrew Amis, Robert Smigielski, Elmar Herbst, Christoph Kittl, Guido Wierer, Nicolas Bouguennec, Riccardo Cristiani, Christian Hoser, Elisabeth Abermann, Lukas Willinger, Riccardo D'Ambrosi, Eric Hamrin Senorski, Alan Getgood, Volker Musahl, Simon Ball, Andy Williams, Gilbert Moatshe, Sebastian Siebenlist, Marc Strauss, Martin Lind, Mirco Herbort, Kristian Samuelsson, Christian Fink, James Robinson   +24 more
wiley   +1 more source

Current concepts in isolated and combined injuries of the medial collateral ligament complex, part II: The anteromedial knee instability classification

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract The medial collateral ligament (MCL) has a strong self‐healing capacity; nevertheless, not every MCL injury heals adequately. Persisting medial and anteromedial knee laxity should be avoided as it may lead to increased strains and wear of the surrounding tissue, including the anterior cruciate ligament (ACL), meniscus and cartilage.
Armin Runer, Nicolas Bouguennec, Guido Wierer, James Robinson, Andrew Amis, Elmar Herbst, Christoph Kittl, Riccardo Cristiani, Christian Hoser, Lukas Willinger, Elisabeth Abermann, Riccardo D'Ambrosi, Eric Hamrin Senorski, Alan Getgood, Volker Musahl, Simon Ball, Andy Williams, Sebastian Siebenlist, Gilbert Moatshe, Robert Smigielski, Martin Lind, Marc Strauss, Mirco Herbort, Kristian Samuelsson, Christian Fink   +24 more
wiley   +1 more source

Enhancing Scattering Center Visibility for ISAR-Based Ballistic Missile Identification [PDF]

Journal of Electromagnetic Engineering and Science
The immense threat posed by ballistic missiles has prompted many nations to develop ballistic missile defense systems. To operate these defense systems effectively, it is essential to quickly identify the missile type in flight and prioritize responses ...
Jaehyuk Kang, Sung-Geon Kim, Seulgi Koh, Ic-Pyo Hong, Hyun-Sung Tae, Jong-Gwan Yook   +5 more
doaj   +1 more source