Results 191 to 200 of about 32,294 (305)

Nonlinear dynamics of a non-stationary rotor-disk-bearing system with rub-impact and geometric nonlinearity under non-ideal excitation. [PDF]

Sci Rep
Ghasemi MA, Bab S, Karamooz Mahdiabadi M.   +2 more
europepmc   +1 more source

Geometry Analysis of Two Photon Polymerized Microneedles—An Experimental and Simulated Approach

Journal of Applied Polymer Science, Volume 143, Issue 22, June 10, 2026.
This research investigates the mechanical stability of hollow, two‐photon‐polymerized microneedles for drug delivery. In an experimental setup, a steel stamp gradually compresses 1000 μm‐tall microneedles while recording their force–deformation response.
Cordelia F. Wittemann, Selina Burkert, Christos J. Karapatzakis, Alexander Schwegler, Andreas Heinrich   +4 more
wiley   +1 more source

Elucidating the Transition Kernel and Anharmonic Coupling in the Spin‐crossover Process of a [FeIII(qsal)2] CH3OSO3 Complex

Angewandte Chemie, Volume 138, Issue 20, 11 May 2026.
Ultrafast broadband transient absorption spectroscopy and multireference excited‐state nonadiabatic calculations in an open‐shell Fe(III) complex unveil the rich electronic and vibrational dynamics detailing the key reactive modes driving the spin‐crossover process.
Soumyajit Mitra, Dilara Farkhutdinova, Sebastian Mai, Stuart A. Hayes, Yifeng Jiang, Tadahiko Ishikawa, Kazuyuki Takahashi, Leticia González, R. J. Dwayne Miller   +8 more
wiley   +2 more sources

The impact of multidirectional excitation on the stick-slip vibration characteristics of a drill string. [PDF]

Sci Rep
Hongshan Z, Wenchang W, Kaixian A.
europepmc   +1 more source

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

Biological Reviews, Volume 101, Issue 3, Page 1406-1462, June 2026.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz, Maja Mielke, Stephan Handschuh, Anthony Herrel, Patrick Lemell, Léa Da Cunha, Nicolai Konow   +6 more
wiley   +1 more source

Analysis of galloping response in ice-coated transmission conductors under wind loads. [PDF]

PLoS One
Wu S, Liu H, Wang Y, Wang Y.
europepmc   +1 more source

Evaluation of Modeling Assumptions for Predicting Structural Damage and Train Derailment Under Earthquake Loading

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 7, Page 1514-1532, June 2026.
ABSTRACT The rapid development of new railway networks and the aging of existing infrastructure in seismic‐prone regions continue to motivate the need for efficient methods to simulate the dynamic behavior of coupled train track structure systems. While detailed train–structure interaction (TSI) models can capture complex mechanisms, they are often too
Miguel A. Gomez, Matthew J. DeJong
wiley   +1 more source

Piezoelectric stepped-plate resonators vibrating at lateral modes for direct viscosity determination in liquids. [PDF]

Microsyst Nanoeng
Huang L, Lu D, Han X, Wu H, Li W, Niu G, Wang K, Yang P, Ren W, Zhao L.   +9 more
europepmc   +1 more source

Combined Analysis of the Mechanical Behavior in the Time and Frequency Domain of a Viscoelastic Brain Phantom Material

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT The mechanical characterization of brain tissue in multiple time scales is often limited by inconsistent or contradicting responses when different experiments are used. The main reason for theses discrepancies are variations in the experimental setups, as brain tissue is sensitive to changes in the time and length scale.
Laura Ruhland, Kai Willner
wiley   +1 more source

Study on the Low-Damage Material Removal Mechanism of Silicon Carbide Ceramics Under Longitudinal-Torsional Ultrasonic Grinding Conditions. [PDF]

Micromachines (Basel)
Liu J, Ma Z, Yan Y, Yuan D, Wang Y.
europepmc   +1 more source