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3D printing has enabled various applications using different forms of materials, such as filaments, sheets, and inks. Typically, during 3D printing, feedstocks are transformed into discrete building blocks and placed or deposited in a…

Robotics · Computer Science 2024-01-18 Nahid Tushar , Rencheng Wu , Yu She , Wenchao Zhou , Wan Shou

In this paper, we develop a system for the low-cost indoor localization and tracking problem using radio signal strength indicator, Inertial Measurement Unit (IMU), and magnetometer sensors. We develop a novel and simplified probabilistic…

Disorder in magnetic materials prevents reliable control of spin textures and constrains their integration into spintronic devices. Existing methods access disorder only indirectly through external imaging probes or bulk transport…

Mesoscale and Nanoscale Physics · Physics 2026-03-03 Liam K. Mitchell , Benjamin J. Brown , Gang Xiao

Purpose: To demonstrate an ultrashort echo time magnetic resonance fingerprinting (UTE-MRF) method that can simultaneously quantify tissue relaxometries for muscle and bone in musculoskeletal systems and tissue components in brain and…

Medical Physics · Physics 2019-05-28 Qing Li , Xiaozhi Cao , Huihui Ye , Congyu Liao , Hongjian He , Jianhui Zhong

The three-dimensional (3D) coordinates of stereoscopically triangulated loops provide strong constraints for magnetic field models of active regions in the solar corona. Here we use STEREO/A and B data from some 500 stereoscopically…

Solar and Stellar Astrophysics · Physics 2015-06-05 Markus J. Aschwanden , Jean-Pierre Wuelser , Nariaki V. Nitta , James R. Lemen , Marc L. DeRosa , Anna Malanushenko

Continuous monitoring of fetal and maternal vital signs, particularly during labor, can be critical for the child and mother's health. We present a novel wearable electronic system that measures, in real-time, maternal heart rate using…

Medical Physics · Physics 2023-07-03 Anushka Tiwari

We present an integrated wire-based magnetooptical trap for the simplified trapping and cooling of large numbers of neutral atoms near material surfaces. With a modified U-shaped current-carrying Cu structure we collect $>3\times 10^8$…

Soft Condensed Matter · Physics 2009-11-10 S. Wildermuth , P. Krüger , C. Becker , M. Brajdic , S. Haupt , A. Kasper , R. Folman , J. Schmiedmayer

Flexible endoscopic robots enable minimally invasive access through natural orifices, but their control accuracy is limited by configuration-dependent hysteresis in the tendon-sheath mechanisms (TSMs). Tendon-sheath friction and tendon…

Robotics · Computer Science 2026-05-19 Myeongbo Park , Junhyun Park , Ihsan Ullah , Chunggil An , Minho Hwang

Rotary positional embeddings (RoPE) are widely used in large language models to encode token positions through multiplicative rotations, yet their behavior at long context lengths remains poorly characterized. In this work, we reinterpret…

Machine Learning · Computer Science 2026-02-12 Feilong Liu

Irregular sampling of time series in electronic health records (EHRs) is one of the main challenges for developing machine learning models. Additionally, the pattern of missing data in certain clinical variables is not at random but depends…

Machine Learning · Computer Science 2024-06-17 Hojjat Karami , David Atienza , Anisoara Ionescu

Magnetically-anchored surgical devices have recently gained attention in abdominal surgery, with the use of magnets to anchor surgical devices onto the insufflated abdominal wall. These anchors have been used to secure passive and active…

Tendon-driven continuum manipulators (TDCM) are commonly used in minimally invasive surgical systems due to their long, thin, flexible structure that is compliant in narrow or tortuous environments. There exist many researches for precise…

Robotics · Computer Science 2021-09-16 Young-Ho Kim , Tommaso Mansi

In the biomedical environment, experiments assessing dynamic processes are primarily performed by a human acquisition supervisor. Contemporary implementations of such experiments frequently aim to acquire a maximum number of relevant events…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Nils Friederich , Angelo Yamachui Sitcheu , Oliver Neumann , Süheyla Eroğlu-Kayıkçı , Roshan Prizak , Lennart Hilbert , Ralf Mikut

In this paper, we investigate a non-iterative imaging algorithm based on the topological derivative in order to retrieve the shape of penetrable electromagnetic inclusions when their dielectric permittivity and/or magnetic permeability…

Mathematical Physics · Physics 2013-05-14 Won-Kwang Park

Navigating the ultrasound (US) probe to the standardized imaging plane (SIP) for image acquisition is a critical but operator-dependent task in conventional freehand diagnostic US. Robotic US systems (RUSS) offer the potential to enhance…

Robotics · Computer Science 2024-12-11 Xihan Ma , Mingjie Zeng , Jeffrey C. Hill , Beatrice Hoffmann , Ziming Zhang , Haichong K. Zhang

This paper proposes a family of finite-time controllers for the bilateral teleoperation of fully actuated nonlinear Euler-Lagrange systems. Based on the energy-shaping framework and under the standard assumption of passive interactions with…

Robotics · Computer Science 2026-02-10 Lazaro F. Torres , Carlos I. Aldana , Emmanuel Nuño , Emmanuel Cruz-Zavala

Using oscillating magnetic fields for indoor positioning is a robust way to resist dynamic environments. This work presents the hard- and software-related optimizations of an induced magnetic field positioning system. We describe a new coil…

Signal Processing · Electrical Eng. & Systems 2025-03-11 Sizhen Bian , Gerald Pirkl , Jingyuan Cheng , Paul Lukowicz

Electron tomography (ET) has been demonstrated to be a powerful tool in addressing challenging problems, such as understanding 3D interactions among various microstructures. Advancing ET to broader applications requires novel…

Applied Physics · Physics 2020-01-22 Yizhi Zhang , Yeqiang Bu , Xiaoyang Fang , Hongtao Wang

Inserting an end of a rope through a loop is a common and important action that is required for creating most types of knots. To perform this action, we need to pass the end of the rope through an area that is enclosed by another segment of…

Robotics · Computer Science 2016-11-21 Alejandro Marzinotto , Johannes A. Stork

In the context of telehealth, robotic approaches have proven a valuable solution to in-person visits in remote areas, with decreased costs for patients and infection risks. In particular, in ultrasonography, robots have the potential to…

Robotics · Computer Science 2024-04-16 Luca Beber , Edoardo Lamon , Davide Nardi , Daniele Fontanelli , Matteo Saveriano , Luigi Palopoli
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