Results 201 to 210 of about 1,083,308 (333)

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

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

Covalent Organic Frameworks for Water Sorption: The Importance of Framework Physical Stability

Advanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
This study explores the water‐vapor stability of 2D covalent organic frameworks (COFs) with varying pore sizes. Results reveal microporous COFs demonstrate superior stability compared to mesoporous ones, despite lower water uptake. Mesoporous keto‐enamine‐linked COFs show enhanced stability due to intralayer hydrogen bonds, confirmed by simulations and
Wei Zhao, He Li, Bui Duc Thuan, Weidong Chen, Qiang Zhu, Mounib Bahri, Boyu Li, Kexin Yu, Chengjun Kang, Ting Chen, Zekun Wang, Nigel D. Browning, Kian Jon Chua, Dan Zhao   +13 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

Tunable and Recyclable Piezoelectric Biomaterials via Ion‐Directed Guanine‐Quadruplex Assembly

Advanced Functional Materials, Volume 36, Issue 11, 5 February 2026.
Guanine‐quadruplex (GQ) assemblies, formed via ion‐mediated self‐assembly of amphiphilic guanine derivatives, are introduced as tunable and recyclable piezoelectric biomaterials. Distinct alkali ions induce unique dipole configurations and piezoelectric outputs, with K⁺ yielding the highest performance.
Seungho Lee, Sangyun Na, Yumi Cho, Gaeun Park, Seung Hak Oh, Jaejun Kim, Byoung‐Ki Cho, Sang Kyu Kwak, Ja‐Hyoung Ryu, Hyunhyub Ko   +9 more
wiley   +1 more source

Influence of Nonlinear Effects Induced by Mode Coupling on Vibration Trajectories of MEMS Micromirrors. [PDF]

Micromachines (Basel)
Chen Z, Qiao D, Peng A.
europepmc   +1 more source

Unleashing the Potential of Raman Spectroscopy to Estimate PEDOT:PSS Doping Level and Crystalline Morphology

Advanced Science, Volume 13, Issue 9, 13 February 2026.
Herein, the correlational changes of each PEDOT Raman peak to morphology and doping level are identified. Two equations are derived to estimate PEDOT π–π spacing and doping level from Raman spectra (from which mobility is also extracted). GIWAXS and XPS results validate the estimation equations.
Tzu‐Yi Thomas Yu, Tsu‐Yu Chou, Viktor Naenen, Bokai Zhang, Hasan Emre Baysal, Bora Bulut, Martin Rosenthal, Francisco Molina‐Lopez   +7 more
wiley   +1 more source

Jacobi-Ritz formulation for modal analysis of thick, anisotropic and non-uniform electric motor stator assemblies considering axisymmetric vibration modes. [PDF]

Meccanica
Andreou P, Hajjaj AZ, Mohammadpour M, Theodossiades S.   +3 more
europepmc   +1 more source

Curved Bistable Origami‐Inspired Flexible Transcatheter Mitral Valve Clamping

Advanced Science, Volume 13, Issue 8, 9 February 2026.
A lightweight bistable curved origami dilator combines reversible deformation and high stability, offering a promising solution for minimally invasive mitral valve repair. Abstract Curved origami exhibits remarkable potential for minimally invasive medical applications owing to its unique geometric programmability and mechanical tunability. Building on
Siyu Gao, Fan Jiang, Xiuting Sun, Peng Qi, Jian Xu   +4 more
wiley   +1 more source

Less Common Variants of Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo: Diagnostic and Therapeutic Considerations. [PDF]

J Clin Med
Santopietro G, Armato E, Califano L.
europepmc   +1 more source