Results 151 to 160 of about 19,851 (292)

Analysis of UAV positioning accuracy based on OTFS-ISAC

物联网学报
Unmanned aerial vehicles (UAVs) are widely used in various scenarios. The integrated sensing and communication (ISAC) technology offers new opportunities to meet the huge demands of UAVs for positioning. Orthogonal time frequency space (OTFS), due to its
LEI Ting, JIANG Fan, GONG Zijun, WU Huici, TAO Xiaofeng   +4 more
doaj  

Next-Generation Mars Network Position, Navigation, and Timing for Future Robotic and Human Explorers. [PDF]

J Astronaut Sci
Rybak M, Ely T, Gustafson E.
europepmc   +1 more source

Flexible wearable electronics for cardiovascular monitoring from surface signals to deep physiological insights

FlexMat, EarlyView.
This review organizes flexible wearable electronics for cardiovascular monitoring into four interconnected information layers: surface electrophysiology, hemodynamic sensing, vascular imaging, and biofluid biomarker analysis. This framework clarifies how electrical rhythm, vascular loading, structural and flow‐related features, and biochemical states ...
Qiao Chen, Hongwen Chen, Yuanyuan Li, Pingan Yang, Rui Li, Zhihao Zhou   +5 more
wiley   +1 more source

Correction: Survey on positioning technology based on signal of opportunity from low earth orbit

Frontiers in Physics
Jiawei He, Jiawei He, Shaojie Ni, Shaojie Ni, Honglei Lin, Honglei Lin, Zhe Liu, Zhe Liu, Zhibin Xiao, Zhibin Xiao   +9 more
doaj   +1 more source

A color Doppler ultrasound-guided protocol for the precise placement of nerve catheters: an anatomical validation study in fresh and fixed cadavers. [PDF]

BMC Anesthesiol
Büttner B, Rosemann H, Zieseniss N, Mewes C, Hinz J, Mansur A, Bergmann I.   +6 more
europepmc   +1 more source

Development and External Validation of an Efficient Deep Learning Model for Lesion Segmentation and Subtyping of Hepatic Echinococcosis in Ultrasound Imaging

Health Care Science, EarlyView.
We developed a lightweight deep learning framework that integrates frequency‐ and spatial‐domain ultrasound features with segmentation‐assisted classification for hepatic echinococcosis diagnosis. The model outperformed existing state‐of‐the‐art methods in both accuracy and inference speed while requiring substantially fewer computational resources ...
Zhu He, Jiajun Qiu, Chenlin Du, Jin Yin, Xuhui Zhang, Yelei Ren, Yifei Wang, Lamu Suolang, Chunyang Li, Zongjiu Zhang, Diming Cai, Qicheng Lao   +11 more
wiley   +1 more source

Repeatability and reliability of retinal arterial hemodynamics measurement using Doppler holography. [PDF]

J Biomed Opt
Martinache OR, Draham RL, Snyder VC, Chhablani J, Sahel JA, Rossi EA, Atlan M.   +6 more
europepmc   +1 more source

Identifying Venous Insufficiency in Head and Neck Reconstruction Flaps Using Machine Learning and Deep Learning Methods

Head &Neck, EarlyView.
ABSTRACT Background Venous insufficiency is a major cause of flap failure in head and neck reconstruction. AI provides a reliable, convenient solution for early detection. Methods Clinical data and postoperative flap photos of head and neck cancer patients (2018–2024) at our center were retrospectively collected, categorized into normal and venous ...
Yurong He, Jugao Fang, Lizhen Hou, Zufei Li, Shizhi He, Yanming Zhao, Qijia Li, Rongjia Li, Xiaoyu Shi, Jiayi Yang, Qi Zhong   +10 more
wiley   +1 more source

The Pivotal Role of Advanced Echocardiography in Transcatheter Closure of Challenging Secundum Atrial Septal Defect Anatomies: An Expert-Based Review. [PDF]

J Cardiovasc Dev Dis
Rana BS, Clapp B, Malik IS.
europepmc   +1 more source

Anatomical Variation of Absent Facial Vein: Implications for Facial Reanimation Surgery

Head &Neck, EarlyView.
ABSTRACT Background The facial vein is the standard recipient vessel in facial reanimation surgery. Its complete absence is rarely described but may cause major challenges during free functional muscle transfer (FFMT). This study aimed to determine the prevalence and predictors of facial vein absence and assess its surgical relevance in facial ...
Cam T. Nguyen, Mark Fricke, Justus Osterloh, Ayla A. Hohenstein, Steffen U. Eisenhardt   +4 more
wiley   +1 more source