Results 221 to 230 of about 104,411 (281)

Predicting Seismic Debris Distributions of Collapsed Unreinforced Masonry Structures Through Physics Engines and Machine Learning Algorithms

Earthquake Spectra, Volume 42, Issue 1, February 2026.
Unreinforced masonry (URM) structures are widespread worldwide, particularly in older urban districts. However, URM buildings—particularly those constructed before the introduction of modern building codes—are highly vulnerable to seismic hazard, and prone to experiencing local and/or global failures when subjected to significant horizontal shaking ...
Jiadaren Liu, Ersilia Giordano, Daniele Malomo   +2 more
wiley   +1 more source

Wonders of Harbor and Grey Seal Whiskers: Morphology, Natural Frequencies, and 3D Modeling. [PDF]

Adv Sci (Weinh)
Zheng X, Kamat AM, Cao M, Triantafyllou MS, Kottapalli AGP.   +4 more
europepmc   +1 more source

A Systematic Evaluation of the Performance of Multiple Brain Age Algorithms in Two Cohorts of Youth

Human Brain Mapping, Volume 47, Issue 2, February 1, 2026.
Performance of five influential brain age estimation algorithms in two population‐based cohorts of youth. Brain age was quantified using estimates of brain structure, and performance was evaluated based on correlations with chronological age, error indices, sensitivity to demographic characteristics, scanning parameters, genetic similarity, and ...
Cleanthis Michael, Natasha S. Jones, Jamie L. Hanson, Heidi B. Westerman, Kelly L. Klump, Colter Mitchell, Christopher S. Monk, S. Alexandra Burt, Luke W. Hyde   +8 more
wiley   +1 more source

Mechanical Analysis for Active Movement of Upper Limb Rehabilitation Robots to Alleviate Shoulder Pain in Patients with Stroke Hemiplegia and Frozen Shoulder. [PDF]

Sensors (Basel)
Bang SJ, Lee JS, Song DH, Ryu SY, Kim KG.   +4 more
europepmc   +1 more source

Analyzing the Free States of one Quantum Resource Theory as Resource States of Another

Advanced Quantum Technologies, Volume 9, Issue 2, February 2026.
The article investigates how free states in one quantum resource theory can become highly resourceful in another. It systematically studies multipartite entanglement, fermionic non‐Gaussianity, imaginarity, realness, spin coherence, Clifford non‐stabilizerness, Sn‐equivariance, and non‐uniform entanglement, combining rigorous analytical tools and ...
Andrew E. Deneris, Paolo Braccia, Pablo Bermejo, N. L. Diaz, Antonio A. Mele, M. Cerezo   +5 more
wiley   +1 more source

Development of a Flexible Parallel Wire Robot for Epicardial Interventions

The International Journal of Medical Robotics and Computer Assisted Surgery, Volume 22, Issue 1, February 2026.
ABSTRACT Background HeartPrinter is a flexible parallel wire robot that adheres to the beating heart with vacuum suction at three bases. An injector head actuated by cables delivers gene therapy injections within the bounds of the bases. To deploy onto the epicardium, an introducer mechanism is required.
Aman Ladak, Johannes O. Bonatti, Roger J. Hajjar, Alaaeldin A. Shalaby, Cameron N. Riviere   +4 more
wiley   +1 more source

Online Adaptation of Data‐Driven Controllers for Unknown Nonlinear Systems

International Journal of Robust and Nonlinear Control, Volume 36, Issue 3, Page 1086-1095, February 2026.
ABSTRACT This paper considers data‐driven online control of input‐affine nonlinear systems. By resorting to a data‐based closed‐loop time‐varying system representation, we derive data‐based online semi‐definite programs that are computed along the system's trajectory.
Xiaoyan Dai, Claudio De Persis, Nima Monshizadeh   +2 more
wiley   +1 more source

Self‐Consistent Models of Earth's Mantle and Core From Long‐Period Seismic and Tidal Constraints

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Here we illustrate the use of parameterized models to address fundamental questions about Earth's mantle and core structure. For this, we invert a large set of normal‐mode center frequencies and quality (attenuation) factors, along with astronomic‐geodetic data, for the radial anelastic seismic structure of the Earth.
F. D. Munch, J. Kemper, A. Khan, G. Helffrich, D. Giardini   +4 more
wiley   +1 more source

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Evolution operators and Euler angles

Il Nuovo Cimento B, 2003
The Euler rotation matrix and angles are derived within a context exploiting evolution operators for vector differential equations.
G. Dattoli, L. Mezi, MIGLIORATI, Mauro
openaire   +2 more sources

Rail Geometry and Euler Angles

Rail Transportation, 2006
In railroad vehicle dynamics, Euler angles are often used to describe the track geometry (track centerline and rail space curves). The tangent and curvature vectors as well as local geometric properties such as the curvature and torsion can be expressed in terms of Euler angles.
Cheta Rathod, Ahmed A. Shabana
openaire   +1 more source